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Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Student Engagement and Enrollment Services -Office of Intercultural Relations (OIR) OIR Graphic Designer  

E-Print Network [OSTI]

, and more. The graphic designer is also responsible for maintaining the quality of the OIR brand. Ensure that maintain the positive image of OIR, its services and programming. Required hours 10-15 hours information on website for intercultural projects. o Develop the OIR brand. o Demonstrated photography skills

2

PETROLEUM PLANTATIONS  

E-Print Network [OSTI]

Science 198, 942 (1977). Petroleum Plantations (continued)Diu is ion, Ext. 6782 PETROLEUM PLANT AT I ONs''e MelvinJapan April 1, 1978 PETROLEUM PLANTATIONS Melvin Calvin

Calvin, Melvin

2011-01-01T23:59:59.000Z

3

MiiOIRES ORIGINAUX 375 Etude de quelques problmes de corrosion  

E-Print Network [OSTI]

M�iiOIRES ORIGINAUX 375 Etude de quelques problèmes de corrosion dans l'industrie laitière par G. DAUFIN* et J. TALBüT** PREMI�RE PARTIE GENERALITES SUR LA CORROSION DES METAUX ET ALLIAGES Introduction La corrosion a pris de nos jours une importance considérable étant donnée l'utilisation grandissante

Paris-Sud XI, Université de

4

-Z:\\OIR Repository\\^ Reports\\^ Projects\\^ TN Dept of Labor and Workforce\\Earnings of Graduates.sas -University of Memphis Office of Institutional Research --15NOV13  

E-Print Network [OSTI]

-Z:\\OIR Repository\\^ Reports\\^ Projects\\^ TN Dept of Labor and Workforce\\Earnings of Graduates.sas -University of Memphis Office of Institutional Research --15NOV13 -Graduation year includes summer, fall graduation, multiplied by 4. Source: Tennessee Dept. of Labor & Workforce data files. Excludes workers

Dasgupta, Dipankar

5

Intraocular lens fabrication  

DOE Patents [OSTI]

This invention describes a method for fabricating an intraocular lens made rom clear Teflon.TM., Mylar.TM., or other thermoplastic material having a thickness of about 0.025 millimeters. These plastic materials are thermoformable and biocompatable with the human eye. The two shaped lenses are bonded together with a variety of procedures which may include thermosetting and solvent based adhesives, laser and impulse welding, and ultrasonic bonding. The fill tube, which is used to inject a refractive filling material is formed with the lens so as not to damage the lens shape. A hypodermic tube may be included inside the fill tube.

Salazar, Mike A. (Albuquerque, NM); Foreman, Larry R. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

6

Intraocular lens fabrication  

DOE Patents [OSTI]

This invention describes a method for fabricating an intraocular lens made from clear Teflon{trademark}, Mylar{trademark}, or other thermoplastic material having a thickness of about 0.025 millimeters. These plastic materials are thermoformable and biocompatable with the human eye. The two shaped lenses are bonded together with a variety of procedures which may include thermosetting and solvent based adhesives, laser and impulse welding, and ultrasonic bonding. The fill tube, which is used to inject a refractive filling material is formed with the lens so as not to damage the lens shape. A hypodermic tube may be included inside the fill tube. 13 figs.

Salazar, M.A.; Foreman, L.R.

1997-07-08T23:59:59.000Z

7

Unitary lens semiconductor device  

DOE Patents [OSTI]

A unitary lens semiconductor device and method. The unitary lens semiconductor device is provided with at least one semiconductor layer having a composition varying in the growth direction for unitarily forming one or more lenses in the semiconductor layer. Unitary lens semiconductor devices may be formed as light-processing devices such as microlenses, and as light-active devices such as light-emitting diodes, photodetectors, resonant-cavity light-emitting diodes, vertical-cavity surface-emitting lasers, and resonant cavity photodetectors.

Lear, Kevin L. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

8

Proposal for PLASMA LENS EXPERIMENT AT  

E-Print Network [OSTI]

Proposal for PLASMA LENS EXPERIMENT AT THE FINAL FOCUS TEST BEAM April 1, 1997 THE PLASMA LENS.....................................................................................3 1.1 Plasma Focusing ......................................................................3 1.2 Previous Plasma Lens Experiments.................................................4 1.3 Plasma Lens

9

Microoptical compound lens  

DOE Patents [OSTI]

An apposition microoptical compound lens comprises a plurality of lenslets arrayed around a segment of a hollow, three-dimensional optical shell. The lenslets collect light from an object and focus the light rays onto the concentric, curved front surface of a coherent fiber bundle. The fiber bundle transports the light rays to a planar detector, forming a plurality of sub-images that can be reconstructed as a full image. The microoptical compound lens can have a small size (millimeters), wide field of view (up to 180.degree.), and adequate resolution for object recognition and tracking.

Sweatt, William C. (Albuquerque, NM); Gill, David D. (Albuquerque, NM)

2007-10-23T23:59:59.000Z

10

THE OPTIMAL GRAVITATIONAL LENS TELESCOPE  

SciTech Connect (OSTI)

Given an observed gravitational lens mirage produced by a foreground deflector (cf. galaxy, quasar, cluster, ...), it is possible via numerical lens inversion to retrieve the real source image, taking full advantage of the magnifying power of the cosmic lens. This has been achieved in the past for several remarkable gravitational lens systems. Instead, we propose here to invert an observed multiply imaged source directly at the telescope using an ad hoc optical instrument which is described in the present paper. Compared to the previous method, this should allow one to detect fainter source features as well as to use such an optimal gravitational lens telescope to explore even fainter objects located behind and near the lens. Laboratory and numerical experiments illustrate this new approach.

Surdej, J.; Hanot, C.; Sadibekova, T. [Department of Astrophysics, Geophysics and Oceanography (AGO), AEOS Group, Liege University, Allee du 6 Aout 17, 4000 Liege (Belgium); Delacroix, C.; Habraken, S. [Department of Physics (DEPHY), Hololab Group, Liege University, Allee du 6 Aout 17, 4000 Liege (Belgium); Coleman, P. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Dominik, M. [SUPA, University of St Andrews, School of Physics and Astronomy, North Haugh, St Andrews, KY16 9SS (United Kingdom); Le Coroller, H. [Observatoire de Haute Provence, F-04870 Saint Michel l'Observatoire (France); Mawet, D. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Quintana, H. [Departmento de Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile, Casilla 306, CL 22 Santiago (Chile); Sluse, D., E-mail: surdej@astro.ulg.ac.b [Astronomisches Rechen-Institut am Zentrum fuer Astronomie der Universitaet Heidelberg, Moenchhofstrasse 12-14, 69120 Heidelberg (Germany)

2010-05-15T23:59:59.000Z

11

Miniature hybrid optical imaging lens  

DOE Patents [OSTI]

A miniature lens system that corrects for imaging and chromatic aberrations, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components.

Sitter, Jr., David N. (Knoxville, TN); Simpson, Marc L. (Knoxville, TN)

1997-01-01T23:59:59.000Z

12

Miniature hybrid optical imaging lens  

DOE Patents [OSTI]

A miniature lens system that corrects for imaging and chromatic aberrations is disclosed, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components. 2 figs.

Sitter, D.N. Jr.; Simpson, M.L.

1997-10-21T23:59:59.000Z

13

Monday, April 7th Sienna Plantation Golf Club  

E-Print Network [OSTI]

Monday, April 7th Sienna Plantation Golf Club One Waters Lake Boulevard, Missouri City, TX Chambers Raffle/Auction Sponsors Ambox, Ltd. Charles & Nancy Beyer Coushatta Casino Resort Greatwood Golf Club Neil Wilkins Odis Cobb Quail Valley Golf Club Sienna Plantation Golf Club White Star Steel Charles

Glowinski, Roland

14

Evaluating ecosystem processes in willow short rotation coppice bioenergy plantations  

E-Print Network [OSTI]

Evaluating ecosystem processes in willow short rotation coppice bioenergy plantations R E B E C C and lit- ter decomposition varied between Short Rotation Coppice (SRC) willow bioenergy plantations., 2009). Willow (Salix spp) short rotation coppice (SRC) is one of the most widely planted second

15

Dispersion-compensated Fresnel lens  

DOE Patents [OSTI]

A transmission grating is used to reduce chromatic aberration in a Fresnel lens, wherein the lens chromatic dispersion is offset and substantially canceled by the grating's diffraction-induced dispersion. The grating comprises a Fresnel-type pattern of microscopic facets molded directly into the lens surface. The facets would typically have a profile height of around 4[times]10[sup [minus]5] inch and a profile width of at least 10[sup [minus]3] inch. In its primary intended application, the invention would function to improve the optical performance of a Fresnel lens used to concentrate direct sunlight. 10 figs.

Johnson, K.C.

1992-11-03T23:59:59.000Z

16

Lens system for a photo ion spectrometer  

DOE Patents [OSTI]

A lens system in a photo ion spectrometer for manipulating a primary ion beam and ionized atomic component is disclosed. The atomic components are removed from a sample by a primary ion beam using the lens system, and the ions are extracted for analysis. The lens system further includes ionization resistant coatings for protecting the lens system. 8 figs.

Gruen, D.M.; Young, C.E.; Pellin, M.J.

1990-11-27T23:59:59.000Z

17

Interpreting slavery at plantation museums and historic sites  

E-Print Network [OSTI]

Interpreting slavery can be a difficult and controversial task. Recent literature has shown that the majority of plantation museums and historic sites, which historically enslaved African-Americans, are currently ignoring the institution of slavery...

Durden, Amber K

2003-01-01T23:59:59.000Z

18

Single lens laser beam shaper  

DOE Patents [OSTI]

A single lens bullet-shaped laser beam shaper capable of redistributing an arbitrary beam profile into any desired output profile comprising a unitary lens comprising: a convex front input surface defining a focal point and a flat output portion at the focal point; and b) a cylindrical core portion having a flat input surface coincident with the flat output portion of the first input portion at the focal point and a convex rear output surface remote from the convex front input surface.

Liu, Chuyu (Newport News, VA); Zhang, Shukui (Yorktown, VA)

2011-10-04T23:59:59.000Z

19

Beyond the Thin Lens Approximation  

E-Print Network [OSTI]

We obtain analytic formulae for the null geodesics of Friedmann-Lema\\^{\\i}tre-Robertson-Walker spacetimes with scalar perturbations in the longitudinal gauge. We use these to provide a rigorous derivation of the cosmological lens equation. We obtain an expression for the magnification of a bundle of light rays in these spacetimes without restriction to static or thin lens scenarios. We show how the usual magnification matrix naturally emerges in the appropriate limits.

Ted Pyne; Mark Birkinshaw

1994-05-10T23:59:59.000Z

20

Beyond the Thin Lens Approximation  

E-Print Network [OSTI]

We obtain analytic formulae for the null geodesics of Friedmann-Lema\\^{\\i}tre-Robertson-Walker spacetimes with scalar perturbations in the longitudinal gauge. From these we provide a rigorous derivation of the cosmological lens equation, and obtain an expression for the magnification of a bundle of light rays without restriction to static or thin lens scenarios. We show how the usual magnification matrix naturally emerges in the appropriate limits.

Ted Pyne; Mark Birkinshaw

1995-04-19T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Planar immersion lens with metasurfaces  

E-Print Network [OSTI]

The solid immersion lens is a powerful optical tool that allows light entering material from air or vacuum to focus to a spot much smaller than the free-space wavelength. Conventionally, however, they rely on semispherical topographies and are non-planar and bulky, which limits their integration in many applications. Recently, there has been considerable interest in using planar structures, referred to as metasurfaces, to construct flat optical components for manipulating light in unusual ways. Here, we propose and demonstrate the concept of a planar immersion lens based on metasurfaces. The resulting planar device, when placed near an interface between air and dielectric material, can focus electromagnetic radiation incident from air to a spot in material smaller than the free-space wavelength. As an experimental demonstration, we fabricate an ultrathin and flexible microwave lens and further show that it achieves wireless energy transfer in material mimicking biological tissue.

Ho, John S; Tanabe, Yuji; Yeh, Alexander J; Fan, Shanhui; Poon, Ada S Y

2015-01-01T23:59:59.000Z

22

Automated Fresnel lens tester system  

SciTech Connect (OSTI)

An automated data collection system controlled by a desktop computer has been developed for testing Fresnel concentrators (lenses) intended for solar energy applications. The system maps the two-dimensional irradiance pattern (image) formed in a plane parallel to the lens, whereas the lens and detector assembly track the sun. A point detector silicon diode (0.5-mm-dia active area) measures the irradiance at each point of an operator-defined rectilinear grid of data positions. Comparison with a second detector measuring solar insolation levels results in solar concentration ratios over the image plane. Summation of image plane energies allows calculation of lens efficiencies for various solar cell sizes. Various graphical plots of concentration ratio data help to visualize energy distribution patterns.

Phipps, G.S.

1981-07-01T23:59:59.000Z

23

Biomechanics of the lens capsule  

E-Print Network [OSTI]

-dimensional and based on linear elastic theory. Therefore, due to the lack of multiaxial data, we seek to quantify the multiaxial pressure-strain behavior in the porcine anterior lens capsule. Specifically, the goal of this research project is to design and construct... capsule is small in comparison to its in-plane dimensions, the lens capsule can be modeled as a membrane. important in membrane theory is the Cauchy stress resultant tensor T, of which the in-plane physical components are given by where h...

Delange, Sherry Leanne

2012-06-07T23:59:59.000Z

24

Eyeglass lens made of glass (radiopaque)  

E-Print Network [OSTI]

Fig. 9-1 Eyeglass lens made of glass (radiopaque) and frame made of metal (radiopaque). #12;Fig. 9-2 Eyeglass lens made of glass (radiopaque) and frame made of plastic (radiolucent). #12;Fig. 9-3 Metal frame of eyeglasses (radiopaque). The eyeglass lens is made of plastic (radiolucent). #12;Fig. 9-4 Cotton roll

25

Diseases of plantation forestry trees in eastern and southern Africa  

E-Print Network [OSTI]

Diseases of plantation forestry trees in eastern and southern Africa J. Roux a*, G. Meke b , B are being allocated to the training of forestry staff andtreeimprovement.Theseefforts,aimedatstrengtheningthe forestry business, also embrace research on pests and diseases that might significantly reduce the value

26

A Magnification Lens for Interactive Volume Visualization  

SciTech Connect (OSTI)

Volume visualization of large data sets suffers from the same problem that many other visualization modalities suffer from: either one can visualize the entire data set and lose small details or visualize a small region and lose the context. In this paper, they present a magnification lens technique for volume visualization. While the notion of a magnification-lens is not new, and other techniques attempt to simulate the physical properties of a magnifying lens, their contribution is in developing a magnification lens that is fast, can be implemented using a fairly small software overhead, and has a natural, intuitive appearance. The issue with magnification lens is the border, or transition, region. The lens center and exterior have a constant zoom factor, and are simple to render. It is the border region that blends between the external and interior magnification, and has a non-constant magnification. They use the perspective-correct textures capability, available in most current graphics systems, to produce a lens with a tessellated border region that approximates linear compression with respect to the radius of the magnification lens. They discuss how a cubic border can mitigate the discontinuities resulting from the use of a linear function, without significant performance loss. They discuss various issues concerning development of a three-dimensional magnification lens.

LaMar, E; Hamann, B; Joy, K I

2001-07-19T23:59:59.000Z

27

ARBRES PLANTATS PELS DOCTORS HONORIS CAUSA DE LA UIB  

E-Print Network [OSTI]

canariensis Sweet ex Sprengel, pi de Canàries 12/02/2004 Son Lledó 20 Josep Palau i Fabre Magnolia grandiflora magnòlia 24/02/2005 Ramon Llull20 Josep Palau i Fabre Magnolia grandiflora, magnòlia 24/02/2005 Ramon Llull Josep Palau Francisco J. Ayala Antoni TàpiesUbicació dels arbres plantats pels doctorsplantats pels

Oro, Daniel

28

An economic analysis of the Texas A&M Plantation: A mathematical programming approach.  

E-Print Network [OSTI]

&M Plantation for 1972 88 14. Estimated costs and returns per acre of hybrid sorghum x Sudangrass pasture for grazing for the Texas A&N Plantation for 1972. 89 15. Estimated costs and returns per cd unit for a beef ccw herd, calves born Aug. ? Oct. and sold... Mar. ? Nay (Cmr Calf I), for the Texas A&N Plantation for 1972. . . . . . . . . 90 16. Estimated costs and returns per ccrc unit for a beef ccrc herd, calves born Feb. ? Apr. and sold Sept. ? Nov. (Cbw Calf II), for the Texas A&N Plantation...

Morgan, James Edward

1973-01-01T23:59:59.000Z

29

E-Print Network 3.0 - acacia mearnsii plantation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sciences and Ecology 34 ECOSYSTEM ECOLOGY The effects of tree establishment on water and salt dynamics Summary: grasslands to oak plantations affected the abundance and...

30

Evaporation of Water from Particles in the Aerodynamic Lens Inlet...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Water from Particles in the Aerodynamic Lens Inlet: An Experimental Study. Evaporation of Water from Particles in the Aerodynamic Lens Inlet: An Experimental Study. Abstract:...

31

A Fisheye Lens for Many Point PDV  

SciTech Connect (OSTI)

The features of the fisheye lens are illustrated, including a design with reflector prisms. The fisheye fiber map and the beam footprint are shown. Fisheye rough-angle metrology was done and results presented. Next steps are given, including a smaller top fisheye lens element, longer reflector prisms with better mounting, and different fiber arrangements.

Frogget, B.

2011-11-01T23:59:59.000Z

32

Explosive plane-wave lens  

DOE Patents [OSTI]

An explosive plane-wave air lens which enables a spherical wave form to be converted to a planar wave without the need to specially machine or shape explosive materials is described. A disc-shaped impactor having a greater thickness at its center than around its periphery is used to convert the spherical wave into a plane wave. When the wave reaches the impactor, the center of the impactor moves first because the spherical wave reaches the center of the impactor first. The wave strikes the impactor later in time as one moves radially along the impactor. Because the impactor is thinner as one moves radially outward, the velocity of the impactor is greater at the periphery than at the center. An acceptor explosive is positioned so that the impactor strikes the acceptor simultaneously. Consequently, a plane detonation wave is propagated through the acceptor explosive. 3 figs., 3 tabs.

Marsh, S.P.

1987-03-12T23:59:59.000Z

33

Explosive plane-wave lens  

DOE Patents [OSTI]

An explosive plane-wave air lens which enables a spherical wave form to be converted to a planar wave without the need to specially machine or shape explosive materials is described. A disc-shaped impactor having a greater thickness at its center than around its periphery is used to convert the spherical wave into a plane wave. When the wave reaches the impactor, the center of the impactor moves first because the spherical wave reaches the center of the impactor first. The wave strikes the impactor later in time as one moves radially along the impactor. Because the impactor is thinner as one moves radially outward, the velocity of the impactor is greater at the periphery than at the center. An acceptor explosive is positioned so that the impactor strikes the acceptor simultaneously. Consequently, a plane detonation wave is propagated through the acceptor explosive. 4 figs.

Marsh, S.P.

1988-03-08T23:59:59.000Z

34

Plantation settlement in the Brazos River Valley, 1820-1860  

E-Print Network [OSTI]

slaves in Texas at, the outbreak 81 of the revolution in 1835. Phs. Holley reaffirmed the fact that there was a considerable number of Negroes in Texas who, though slavery was forbidden, were bound for life by an evasion of the m! w, d were in reality... "- parbleu'a;!y evidcnii-. jn chr " aro-;1 =v' ', i -i S r wc, e osirbii;ipd che fj;c lai-e plantations cy xen who werc sc". 'ni "e . enables-cri cod ';' "d. . su, =, and re:: zppor -u . ' s. " cc:i c " e '. o. . :;any ~':. a- ee, b f-, . . . ore mr...

Bornhorst, Jacquelyn Wooley

1971-01-01T23:59:59.000Z

35

Short-rotation eucalypt plantations in Brazil: Social and environmental issues  

SciTech Connect (OSTI)

This report presents an overview of the historical and current legislative, social, and environmental aspects of the establishment of large-scale eucalypt plantations in Brazil. The report consolidates the vast experience and knowledge relating to these forest plantation systems and highlights lessons learned and new trends. The overview should prove useful to those interested in comparing or beginning similar endeavors.

Couto, L. [Universidade Federal de Vicosa, Minas Gerais (Brasil). Dept. de Engenharia Florestal; Betters, D.R. [Colorado State Univ., Fort Collins, CO (United States). Dept. of Forest Sciences

1995-02-01T23:59:59.000Z

36

A Plasma Lens for Magnetron Sputtering  

SciTech Connect (OSTI)

A plasma lens, consisting of a solenoid and potential-defining ring electrodes, has been placed between a magnetron and substrates to be coated. Photography reveals qualitative information on excitation, ionization, and the transport of plasma to the substrate.

Anders, Andre; Brown, Jeff

2010-11-30T23:59:59.000Z

37

www.umass.edu/oir ORGANIZATIONAL CHART  

E-Print Network [OSTI]

Education and Family Resources Veteran Services Center for Health Promotion (CHP) Career Services Off Gallery Union Video Center UVC TV19 WMUA Radio Executive Director, Residential Life Assoc. VC / Center Advising · Undergraduate Advis- ing Services · Residential Academic Programs Executive Director, Continuing

Massachusetts at Amherst, University of

38

New species of Mycosphaerella from Myrtaceae in plantations and native forests in eastern Australia  

E-Print Network [OSTI]

New species of Mycosphaerella from Myrtaceae in plantations and native forests in eastern Australia, New South Wales 2119, Australia Treena I. Burgess School of Biological Sciences and Biotechnology, Murdoch University, Perth, WA 6150, Australia Vyrna Beilharz Primary Industries Research Victoria

39

Nurturing resistance : agency and activism of women tea plantation workers in a gendered space   

E-Print Network [OSTI]

This thesis offers an analysis of labour relations and social space in the tea gardens of north-east India. Existing literature provides us with an understanding of how the plantations operate as economic spaces, but ...

Banerjee, Supurna

2014-07-01T23:59:59.000Z

40

Social Structure and Process of a Banana Plantation on the Pacific Coast of Costa Rica  

E-Print Network [OSTI]

KU ScholarWorks | The University of Kansas Central American Theses and Dissertations Collection Social Structure and Process of a Banana Plantation on the Pacific Coast of Costa Rica Professor in Charge Cesar X. Hernández Cela Committee Members E... Communications program at the University of Kansas Libraries’ Center for Digital Scholarship. http://kuscholarworks.ku.edu SOCIAL STRUCTURE AND PROCESS OF A BANANA PLANTATION ON THE PACIFIC COAST OF COSTA RICA by Francisco .Escobar A.B., University of...

Escobar, Francisco

1975-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Analytic Models of Plausible Gravitational Lens Potentials  

SciTech Connect (OSTI)

Gravitational lenses on galaxy scales are plausibly modeled as having ellipsoidal symmetry and a universal dark matter density profile, with a Sersic profile to describe the distribution of baryonic matter. Predicting all lensing effects requires knowledge of the total lens potential: in this work we give analytic forms for that of the above hybrid model. Emphasizing that complex lens potentials can be constructed from simpler components in linear combination, we provide a recipe for attaining elliptical symmetry in either projected mass or lens potential.We also provide analytic formulae for the lens potentials of Sersic profiles for integer and half-integer index. We then present formulae describing the gravitational lensing effects due to smoothly-truncated universal density profiles in cold dark matter model. For our isolated haloes the density profile falls off as radius to the minus fifth or seventh power beyond the tidal radius, functional forms that allow all orders of lens potential derivatives to be calculated analytically, while ensuring a non-divergent total mass. We show how the observables predicted by this profile differ from that of the original infinite-mass NFW profile. Expressions for the gravitational flexion are highlighted. We show how decreasing the tidal radius allows stripped haloes to be modeled, providing a framework for a fuller investigation of dark matter substructure in galaxies and clusters. Finally we remark on the need for finite mass halo profiles when doing cosmological ray-tracing simulations, and the need for readily-calculable higher order derivatives of the lens potential when studying catastrophes in strong lenses.

Baltz, Edward A.; Marshall, Phil; Oguri, Masamune

2007-05-04T23:59:59.000Z

42

Analytic models of plausible gravitational lens potentials  

SciTech Connect (OSTI)

Gravitational lenses on galaxy scales are plausibly modelled as having ellipsoidal symmetry and a universal dark matter density profile, with a Sersic profile to describe the distribution of baryonic matter. Predicting all lensing effects requires knowledge of the total lens potential: in this work we give analytic forms for that of the above hybrid model. Emphasising that complex lens potentials can be constructed from simpler components in linear combination, we provide a recipe for attaining elliptical symmetry in either projected mass or lens potential. We also provide analytic formulae for the lens potentials of Sersic profiles for integer and half-integer index. We then present formulae describing the gravitational lensing effects due to smoothly-truncated universal density profiles in cold dark matter model. For our isolated haloes the density profile falls off as radius to the minus fifth or seventh power beyond the tidal radius, functional forms that allow all orders of lens potential derivatives to be calculated analytically, while ensuring a non-divergent total mass. We show how the observables predicted by this profile differ from that of the original infinite-mass NFW profile. Expressions for the gravitational flexion are highlighted. We show how decreasing the tidal radius allows stripped haloes to be modelled, providing a framework for a fuller investigation of dark matter substructure in galaxies and clusters. Finally we remark on the need for finite mass halo profiles when doing cosmological ray-tracing simulations, and the need for readily-calculable higher order derivatives of the lens potential when studying catastrophes in strong lenses.

Baltz, Edward A.; Marshall, Phil; Oguri, Masamune, E-mail: eabaltz@slac.stanford.edu, E-mail: pjm@physics.ucsb.edu, E-mail: oguri@slac.stanford.edu [Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, PO Box 20450, MS29, Stanford, CA 94309 (United States)] [Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, PO Box 20450, MS29, Stanford, CA 94309 (United States)

2009-01-15T23:59:59.000Z

43

Conservation Through the Economics Lens Joshua Farley  

E-Print Network [OSTI]

Conservation Through the Economics Lens Joshua Farley Received: 31 August 2006 / Accepted: 31 Although conservation is an inherently trans- disciplinary issue, there is much to be gained from examining them, the better we can conserve ecosystems by reducing degrada- tion. Second, economics offers us

Vermont, University of

44

Compound refractive X-ray lens  

DOE Patents [OSTI]

An apparatus and method for focusing X-rays. In one embodiment, his invention is a commercial-grade compound refractive X-ray lens. The commercial-grade compound refractive X-ray lens includes a volume of low-Z material. The volume of low-Z material has a first surface which is adapted to receive X-rays of commercially-applicable power emitted from a commercial-grade X-ray source. The volume of low-Z material also has a second surface from which emerge the X-rays of commercially-applicable power which were received at the first surface. Additionally, the commercial-grade compound refractive X-ray lens includes a plurality of openings which are disposed between the first surface and the second surface. The plurality of openings are oriented such that the X-rays of commercially-applicable power which are received at the first surface, pass through the volume of low-Z material and through the plurality openings. In so doing, the X-rays which emerge from the second surface are refracted to a focal point.

Nygren, David R. (Berkeley, CA); Cahn, Robert (Walnut Creek, CA); Cederstrom, Bjorn (Traellborg, SE); Danielsson, Mats (Stocksund, SE); Vestlund, Jonas (Stockholm, SE)

2000-01-01T23:59:59.000Z

45

Modern Hunting Practices and Wild Meat Trade in the Oil Palm Plantation-Dominated Landscapes of Sumatra,  

E-Print Network [OSTI]

Modern Hunting Practices and Wild Meat Trade in the Oil Palm Plantation-Dominated Landscapes driven by Chinese and Christian Batak. We conclude that hunting within oil palm plantations may reduce . Palm oil . Rubber . Wild boar (Sus scrofa) . Livelihoods . Jambi . Southeast Asia . Sustainable hunting

Silver, Whendee

46

Estimating aboveground biomass in forest and oil palm plantation in Sabah, Malaysian Borneo using ALOS PALSAR data  

E-Print Network [OSTI]

Estimating aboveground biomass in forest and oil palm plantation in Sabah, Malaysian Borneo using September 2011 Keywords: ALOS-PALSAR Land-cover monitoring Aboveground biomass Oil palm Borneo a b s t r a c t Conversion of tropical forests to oil palm plantations in Malaysia and Indonesia has resulted in large

Malhi, Yadvinder

47

Novel Scanning Lens Instrument for Evaluating Fresnel Lens Performance: Equipment Development and Initial Results (Presentation)  

SciTech Connect (OSTI)

A system dedicated to the optical transmittance characterization of Fresnel lenses has been developed at NREL, in collaboration with the UPM. The system quantifies the optical efficiency of the lens by generating a performance map. The shape of the focused spot may also be analyzed to understand change in the lens performance. The primary instrument components (lasers and CCD detector) have been characterized to confirm their capability for performing optical transmittance measurements. Measurements performed on SoG and PMMA lenses subject to a variety of indoor conditions (e.g., UV and damp heat) identified differences in the optical efficiency of the evaluated lenses, demonstrating the ability of the Scanning Lens Instrument (SLI) to distinguish between the aged lenses.

Herrero, R.; Miller, D. C.; Kurtz, S. R.; Anton, I.; Sala, G.

2013-07-01T23:59:59.000Z

48

DISCOVERY OF A QUADRUPLE LENS IN CANDELS WITH A RECORD LENS REDSHIFT z = 1.53  

SciTech Connect (OSTI)

Using spectroscopy from the Large Binocular Telescope and imaging from the Hubble Space Telescope we discovered the first strong galaxy lens at z {sub lens} > 1. The lens has a secure photometric redshift of z = 1.53 ± 0.09 and the source is spectroscopically confirmed at z = 3.417. The Einstein radius (0.''35; 3.0 kpc) encloses 7.6 × 10{sup 10} M {sub ?}, with an upper limit on the dark matter fraction of 60%. The highly magnified (40×) source galaxy has a very small stellar mass (?10{sup 8} M {sub ?}) and shows an extremely strong [O III]{sub 5007Å} emission line (EW{sub 0} ? 1000 Å) bolstering the evidence that intense starbursts among very low-mass galaxies are common at high redshift.

Van der Wel, A.; Van de Ven, G.; Maseda, M.; Rix, H. W.; Rudnick, G. H. [Max-Planck Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg (Germany)] [Max-Planck Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg (Germany); Grazian, A. [INAF - Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio (Italy)] [INAF - Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio (Italy); Finkelstein, S. L. [George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States)] [George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States); Koo, D. C.; Faber, S. M. [UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States)] [UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Ferguson, H. C.; Koekemoer, A. M.; Grogin, N. A. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)] [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Kocevski, D. D., E-mail: vdwel@mpia.de [Department of Physics and Astronomy, University of Kentucky, 505 Rose Street, Lexington, KY 40506 (United States)

2013-11-01T23:59:59.000Z

49

Multipoint photonic doppler velocimetry using optical lens elements  

SciTech Connect (OSTI)

A probe including a fisheye lens is disclosed to measure the velocity distribution of a moving surface along many lines of sight. Laser light, directed to the surface and then reflected back from the surface, is Doppler shifted by the moving surface, collected into fisheye lens, and then directed to detection equipment through optic fibers. The received light is mixed with reference laser light and using photonic Doppler velocimetry, a continuous time record of the surface movement is obtained. An array of single-mode optical fibers provides an optic signal to an index-matching lens and eventually to a fisheye lens. The fiber array flat polished and coupled to the index-matching lens using index-matching gel. Numerous fibers in a fiber array project numerous rays through the fisheye lens which in turn project many measurement points at numerous different locations to establish surface coverage over a hemispherical shape with very little crosstalk.

Frogget, Brent Copely; Romero, Vincent Todd

2014-04-29T23:59:59.000Z

50

A passively tunable acoustic metamaterial lens for selective ultrasonic excitation  

SciTech Connect (OSTI)

In this paper, we present an approach to ultrasonic beam-forming and beam-steering in structures based on the concept of embedded acoustic metamaterial lenses. The lens design exploits the principle of acoustic drop-channel that enables the dynamic coupling of multiple ultrasonic waveguides at selected frequencies. In contrast with currently available technology, the embedded lens allows exploiting the host structure as a key component of the transducer system therefore enabling directional excitation by means of a single ultrasonic transducer. The design and the performance of the lens are numerically investigated by using Plane Wave Expansion and Finite Difference Time Domain techniques applied to bulk structures. Then, the design is experimentally validated on a thin aluminum plate waveguide where the lens is implemented by through-holes. The dynamic response of the embedded lens is estimated by reconstructing, via Laser Vibrometry, the velocity field induced by a single source located at the center of the lens.

Zhu, H.; Semperlotti, F., E-mail: Fabio.Semperlotti.1@nd.edu [Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2014-09-07T23:59:59.000Z

51

Lens transmission measurement for an absolute radiation thermometer  

SciTech Connect (OSTI)

The lens transmission for the National Institute of Metrology of China absolute radiation thermometer is measured by a hybrid method. The results of the lens transmission measurements are 99.002% and 86.792% for filter radiometers with center wavelengths 633 nm and 900 nm, respectively. These results, after correcting for diffraction factors and the size-of-source effect when the lens is incorporated within the radiometer, can be used for measurement of thermodynamic temperature. The expanded uncertainty of the lens transmission measurement system has been evaluated. It is 1.3×10{sup ?3} at 633 nm and 900 nm, respectively.

Hao, X.; Yuan, Z.; Lu, X. [Division of Thermometry and Materials Evaluation, National Institute of Metrology, Beijing (China)] [Division of Thermometry and Materials Evaluation, National Institute of Metrology, Beijing (China)

2013-09-11T23:59:59.000Z

52

1. Lens Aberration (Hubble) 2. Diffraction of electromagnetic waves at aperture stop of the lens  

E-Print Network [OSTI]

of the lens 3. Defocusing 4. Motions and vibrations of the camera telephoto lenses motion of the object 7. Electronic interference fixed and moving patterns 8. Noisy digital circuits individual bits with phase ignored) is roughly the equivalent of frequency response in an audio system, and can

Turkel, Eli

53

Comparison of Strong Gravitational Lens Model Software II. HydraLens: Computer-Assisted Strong Gravitational Lens Model Generation and Translation  

E-Print Network [OSTI]

The behavior of strong gravitational lens model software in the analysis of lens models is not necessarily consistent among the various software available, suggesting that the use of several models may enhance the understanding of the system being studied. Among the publicly available codes, the model input files are heterogeneous, making the creation of multiple models tedious. An enhanced method of creating model files and a method to easily create multiple models, may increase the number of comparison studies. HydraLens simplifies the creation of model files for four strong gravitational lens model software packages, including Lenstool, Gravlens/Lensmodel, glafic and PixeLens, using a custom designed GUI for each of the four codes that simplifies the entry of the model for each of these codes, obviating the need for user manuals to set the values of the many flags and in each data field. HydraLens is designed in a modular fashion, which simplifies the addition of other strong gravitational lens codes in th...

Lefor, Alsn T

2015-01-01T23:59:59.000Z

54

Financial and economic performance of long-rotation hardwood plantation investments in Queensland, Australia  

E-Print Network [OSTI]

-economically justified in most Hardwood Regions, even though financial returns from timber production may be negative. D 2003 Elsevier B.V. All rights reserved. Keywords: Timber plantations; Ecosystem services; Financial communication).1 Forestry prospectus companies and the Queensland Depart- ment of Primary Industries (DPI

Venn, Tyron

55

Author's personal copy Energy and water balance of two contrasting loblolly pine plantations on the  

E-Print Network [OSTI]

Author's personal copy Energy and water balance of two contrasting loblolly pine plantations are more interested in water and carbon balances, quantifying forest energy balance offers insights to how Accepted 9 September 2009 Keywords: Energy balance Evapotranspiration Forest albedo Forest hydrology

Noormets, Asko

56

Lessons Learned on 50,000 acres of Plantation in Northern California1  

E-Print Network [OSTI]

Lessons Learned on 50,000 acres of Plantation in Northern California1 Jeff Webster and Ed Fredrickson2 Abstract Many lessons have been learned during reforestation of large wildfires and clearcuts), and Finley Fire (1990). The lessons learned from these fires were aggressively applied to the Fountain Fire

Standiford, Richard B.

57

Nitrogen management is essential to prevent tropical oil palm plantations from causing ground-level  

E-Print Network [OSTI]

Nitrogen management is essential to prevent tropical oil palm plantations from causing ground-level ozone pollution C. N. Hewitta,1 , A. R. MacKenziea , P. Di Carlob , C. F. Di Marcoc , J. R. Dorseyd , MCentre for Ecology and Hydrology, Penicuik, Edinburgh EH26 0QB, United Kingdom; dSchool of Earth, Atmospheric

58

Climate benefits from alternative energy uses of biomass plantations in Uganda  

E-Print Network [OSTI]

renewable energy to rural communities, while decreasing greenhouse gas emissions from conven- tional be produced by biomass based energy systems in Anaka, a rural settlement in the Amuru district in northernClimate benefits from alternative energy uses of biomass plantations in Uganda Giuliana Zanchi a

Vermont, University of

59

ORIGINAL ARTICLE Water-use efficiency of a poplar plantation in Northern China  

E-Print Network [OSTI]

Nulty Received: 25 December 2012 / Accepted: 7 February 2014 Ó The Japanese Forest Society and Springer Japan to plantations in China (Chinese Forestry Society 2003), making it the most important tree species employed in J. Zhou Á Z. Zhang (&) Á X. Fang Á T. Zha Á J. Guo Key Laboratory of Soil and Water Conservation

Chen, Jiquan

60

E-Print Network 3.0 - acoustic lens design Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

motor Summary: . 2006 Optical Society of America OCIS codes: (010.1080) adaptive optics; (220.3620) lens design; (220... -filled hydroacoustic lens," J. Acoust. Soc. Am. 49,...

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

E-Print Network 3.0 - allogenic anterior lens Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Summary: anteriorly by the lens epithelium and posteriorly by newly differentiated fiber cells. SPARC (secreted... of the lens is not a static structure; rather, it is...

62

The binary gravitational lens and its extreme cases  

E-Print Network [OSTI]

The transition of the binary gravitational lens from the equal mass case to small (planetary) mass ratios q is studied. It is shown how the limit of a (pure shear) Chang-Refsdal lens is approached, under what conditions the Chang-Refsdal approximation is valid, and how the 3 different topologies of the critical curves and caustics for a binary lens are mapped onto the 2 different topologies for a Chang-Refsdal lens with pure shear. It is shown that for wide binaries, the lensing in the vicinity of both lens objects can be described by a Taylor-expansion of the deflection term due to the other object, where the Chang-Refsdal approximation corresponds to a truncation of this series. For close binaries, only the vicinity of the secondary, less massive, object can be described in this way. However, for image distances much larger than the separation of the lens objects, any binary lens can be approximated by means of multipole expansion, where the first non-trivial term is the quadrupole term. It is shown that an ambiguity exists between wide and close binary lenses, where the shear at one of the objects due to the other object for the wide binary is equal to the absolute value of the eigenvalues of the quadrupole moment for the close binary. This analysis provides the basis for a classification of binary lens microlensing events, especially of planetary events, and an understanding of present ambiguities.

M. Dominik

1999-09-10T23:59:59.000Z

63

Thermal behavior in the LENS process  

SciTech Connect (OSTI)

Direct laser metal deposition processing is a promising manufacturing technology which could significantly impact the length of time between initial concept and finished part. For adoption of this technology in the manufacturing environment, further understanding is required to ensure robust components with appropriate properties are routinely fabricated. This requires a complete understanding of the thermal history during part fabrication and control of this behavior. This paper will describe research to understand the thermal behavior for the Laser Engineered Net Shaping (LENS) process, where a component is fabricated by focusing a laser beam onto a substrate to create a molten pool in which powder particles are simultaneously injected to build each layer. The substrate is moved beneath the laser beam to deposit a thin cross section, thereby creating the desired geometry for each layer. After deposition of each layer, the powder delivery nozzle and focusing lens assembly is incremented in the positive Z-direction, thereby building a three dimensional component layer additively. It is important to control the thermal behavior to reproducibly fabricate parts. The ultimate intent is to monitor the thermal signatures and to incorporate sensors and feedback algorithms to control part fabrication. With appropriate control, the geometric properties (accuracy, surface finish, low warpage) as well as the materials` properties (e.g., strength, ductility) of a component can be dialed into the part through the fabrication parameters. Thermal monitoring techniques will be described, and their particular benefits highlighted. Preliminary details in correlating thermal behavior with processing results will be discussed.

Griffith, M.L.; Schlienger, M.E.; Harwell, L.D. [and others

1998-08-01T23:59:59.000Z

64

High gradient lens for charged particle beam  

DOE Patents [OSTI]

Methods and devices enable shaping of a charged particle beam. A dynamically adjustable electric lens includes a series of alternating a series of alternating layers of insulators and conductors with a hollow center. The series of alternating layers when stacked together form a high gradient insulator (HGI) tube to allow propagation of the charged particle beam through the hollow center of the HGI tube. A plurality of transmission lines are connected to a plurality of sections of the HGI tube, and one or more voltage sources are provided to supply an adjustable voltage value to each transmission line of the plurality of transmission lines. By changing the voltage values supplied to each section of the HGI tube, any desired electric field can be established across the HGI tube. This way various functionalities including focusing, defocusing, acceleration, deceleration, intensity modulation and others can be effectuated on a time varying basis.

Chen, Yu-Jiuan

2014-04-29T23:59:59.000Z

65

Estimation of aboveground biomass and inorganic nutrient content of a 25-year-old loblolly pine (Pinus taeda L.) plantation  

E-Print Network [OSTI]

ESTIMATION OF ABOVEGROUND BIOMASS AND INORGANIC NUTRIENT CONTENT OF A 25-YEAR-OLD LOBLOLLY PINE (PINUS TAEDA L. ) PLANTATION A Thesis by JAMES NELSON MOUSER Submitted to the Graduate College of Texas ARM University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August lqBO Major Si bject: Forestry ESTIMATION OF ABOVEGROUND BIOMASS AND INORGANIC NUTRIENT CONTENT OF A 25-YEAR-OLD LOBLOLLY PINE (PINUS TAEDA L. ) PLANTATION A Thesis by JAMES NELSON HOUSER Approved...

Houser, James Nelson

1980-01-01T23:59:59.000Z

66

A soil-site investigation of slash pine (Pinus elliottii engelm.) plantations in the flatwoods section of southeast Texas  

E-Print Network [OSTI]

A SOIL-SITE INVESTIGATION OF SLASH PINE (PINUS ELLIOTTII ENGELM. ) PLANTATIONS IN THE FLATNOODS SECTION OF SOUTHEAST TEXAS A Thesis by ROBERT JAMES FEWIN Submitted to the Graduate College of Texas ASM University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE May 19 71 Major Subject: Forestry A SOIL-SITE INVESTIGATION OF SLASH PINE (PINUS ELLIOTTII ENGEIM. ) PLANTATIONS IN TBE FLATWOODS SECTION OF SOUTHEAST TEXAS A Thesis by ROBERT JAMES FEWIN Approved...

Fewin, Robert James

1971-01-01T23:59:59.000Z

67

Electrostatic plasma lens for focusing negatively charged particle beams  

SciTech Connect (OSTI)

We describe the current status of ongoing research and development of the electrostatic plasma lens for focusing and manipulating intense negatively charged particle beams, electrons, and negative ions. The physical principle of this kind of plasma lens is based on magnetic isolation electrons providing creation of a dynamical positive space charge cloud in shortly restricted volume propagating beam. Here, the new results of experimental investigations and computer simulations of wide-aperture, intense electron beam focusing by plasma lens with positive space charge cloud produced due to the cylindrical anode layer accelerator creating a positive ion stream towards an axis system is presented.

Goncharov, A. A.; Dobrovolskiy, A. M.; Dunets, S. M. [Institute of Physics NAS of Ukraine, Kiev 03028, Ave. Nauki 46 (Ukraine); Litovko, I. V. [Institute for Nuclear Research NAS of Ukraine, Kiev 03650, pr. Nauki 47 (Ukraine); Gushenets, V. I.; Oks, E. M. [High-Current Electronics Institute SB of RAS, Tomsk (Russian Federation)

2012-02-15T23:59:59.000Z

68

Tunable-focus liquid lens controlled using a servo motor  

E-Print Network [OSTI]

operation, this liquid lens has potential applications in zoom lenses, auto beam steering, and eyeglasses lenses are useful for auto beam steering, cell phone cameras, eyeglasses, and other optical signal

Wu, Shin-Tson

69

The Extragalactic Lens VLBI Imaging Survey (ELVIS) : investigating galaxy cores and black holes with gravitational lens central images  

E-Print Network [OSTI]

This thesis describes the Extragalactic Lens VLBI Imaging Survey (ELVIS), a search for central images in gravitational lenses. We present the first four ELVIS targets, for which we have radio VLBI observations with resolutions ...

Boyce, Edward R

2006-01-01T23:59:59.000Z

70

Laser and acoustic lens for lithotripsy  

DOE Patents [OSTI]

An acoustic focusing device whose acoustic waves are generated by laser radiation through an optical fiber. The acoustic energy is capable of efficient destruction of renal and biliary calculi and deliverable to the site of the calculi via an endoscopic procedure. The device includes a transducer tip attached to the distal end of an optical fiber through which laser energy is directed. The transducer tip encapsulates an exogenous absorbing dye. Under proper irradiation conditions (high absorbed energy density, short pulse duration) a stress wave is produced via thermoelastic expansion of the absorber for the destruction of the calculi. The transducer tip can be configured into an acoustic lens such that the transmitted acoustic wave is shaped or focused. Also, compressive stress waves can be reflected off a high density/low density interface to invert the compressive wave into a tensile stress wave, and tensile stresses may be more effective in some instances in disrupting material as most materials are weaker in tension than compression. Estimations indicate that stress amplitudes provided by this device can be magnified more than 100 times, greatly improving the efficiency of optical energy for targeted material destruction.

Visuri, Steven R. (Livermore, CA); Makarewicz, Anthony J. (San Ramon, CA); London, Richard A. (Orinda, CA); Benett, William J. (Livermore, CA); Krulevitch, Peter (Pleasanton, CA); Da Silva, Luiz B. (Pleasanton, CA)

2002-01-01T23:59:59.000Z

71

Gravitational lens equation for embedded lenses; magnification and ellipticity  

SciTech Connect (OSTI)

We give the lens equation for light deflections caused by point mass condensations in an otherwise spatially homogeneous and flat universe. We assume the signal from a distant source is deflected by a single condensation before it reaches the observer. We call this deflector an embedded lens because the deflecting mass is part of the mean density. The embedded lens equation differs from the conventional lens equation because the deflector mass is not simply an addition to the cosmic mean. We prescribe an iteration scheme to solve this new lens equation and use it to compare our results with standard linear lensing theory. We also compute analytic expressions for the lowest order corrections to image amplifications and distortions caused by incorporating the lensing mass into the mean. We use these results to estimate the effect of embedding on strong lensing magnifications and ellipticities and find only small effects, <1%, contrary to what we have found for time delays and for weak lensing, {approx}5%.

Chen, B. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks, Norman, Oklahoma 73019 (United States); Mathematics Department, University of Oklahoma, 601 Elm Avenue, Norman, Oklahoma 73019 (United States); Kantowski, R.; Dai, X. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks, Norman, Oklahoma 73019 (United States)

2011-10-15T23:59:59.000Z

72

Method for quantifying optical properties of the human lens  

DOE Patents [OSTI]

A method is disclosed for quantifying optical properties of the human lens. The present invention includes the application of fiberoptic, OMA-based instrumentation as an in vivo diagnostic tool for the human ocular lens. Rapid, noninvasive and comprehensive assessment of the optical characteristics of a lens using very modest levels of exciting light are described. Typically, the backscatter and fluorescence spectra (from about 300- to 900-nm) elicited by each of several exciting wavelengths (from about 300- to 600-nm) are collected within a few seconds. The resulting optical signature of individual lenses is then used to assess the overall optical quality of the lens by comparing the results with a database of similar measurements obtained from a reference set of normal human lenses having various ages. Several metrics have been identified which gauge the optical quality of a given lens relative to the norm for the subject`s chronological age. These metrics may also serve to document accelerated optical aging and/or as early indicators of cataract or other disease processes. 8 figs.

Loree, T.R.; Bigio, I.J.; Zuclich, J.A.; Shimada, Tsutomu; Strobl, K.

1999-04-13T23:59:59.000Z

73

Method for quantifying optical properties of the human lens  

DOE Patents [OSTI]

Method for quantifying optical properties of the human lens. The present invention includes the application of fiberoptic, OMA-based instrumentation as an in vivo diagnostic tool for the human ocular lens. Rapid, noninvasive and comprehensive assessment of the optical characteristics of a lens using very modest levels of exciting light are described. Typically, the backscatter and fluorescence spectra (from about 300- to 900-nm) elicited by each of several exciting wavelengths (from about 300- to 600-nm) are collected within a few seconds. The resulting optical signature of individual lenses is then used to assess the overall optical quality of the lens by comparing the results with a database of similar measurements obtained from a reference set of normal human lenses having various ages. Several metrics have been identified which gauge the optical quality of a given lens relative to the norm for the subject's chronological age. These metrics may also serve to document accelerated optical aging and/or as early indicators of cataract or other disease processes.

Loree, deceased, Thomas R. (late of Albuquerque, NM); Bigio, Irving J. (Los Alamos, NM); Zuclich, Joseph A. (San Antonio, TX); Shimada, Tsutomu (Los Alamos, NM); Strobl, Karlheinz (Fiskdale, MA)

1999-01-01T23:59:59.000Z

74

Simulation of Canopy CO2/H2O Fluxes for a Rubber (Hevea Brasiliensis) Plantation in Central Cambodia: The Effect of the Regular Spacing of Planted Trees  

SciTech Connect (OSTI)

We developed a soil-vegetation-atmosphere transfer (SVAT) model applicable to simulating CO2 and H2O fluxes from the canopies of rubber plantations, which are characterized by distinct canopy clumping produced by regular spacing of plantation trees. Rubber (Hevea brasiliensis Müll. Arg.) plantations, which are rapidly expanding into both climatically optimal and sub-optimal environments throughout mainland Southeast Asia, potentially change the partitioning of water, energy, and carbon at multiple scales, compared with traditional land covers it is replacing. Describing the biosphere-atmosphere exchange in rubber plantations via SVAT modeling is therefore essential to understanding the impacts on environmental processes. The regular spacing of plantation trees creates a peculiar canopy structure that is not well represented in most SVAT models, which generally assumes a non-uniform spacing of vegetation. Herein we develop a SVAT model applicable to rubber plantation and an evaluation method for its canopy structure, and examine how the peculiar canopy structure of rubber plantations affects canopy CO2 and H2O exchanges. Model results are compared with measurements collected at a field site in central Cambodia. Our findings suggest that it is crucial to account for intensive canopy clumping in order to reproduce observed rubber plantation fluxes. These results suggest a potentially optimal spacing of rubber trees to produce high productivity and water use efficiency.

Kumagai, Tomo'omi; Mudd, Ryan; Miyazawa, Yoshiyuki; Liu, Wen; Giambelluca, Thomas; Kobayashi, N.; Lim, Tiva Khan; Jomura, Mayuko; Matsumoto, Kazuho; Huang, Maoyi; Chen, Qi; Ziegler, Alan; Yin, Song

2013-09-10T23:59:59.000Z

75

Improved automated lens design for liquid metal ion sources  

SciTech Connect (OSTI)

Our method for optimum design of electrostatic lenses with high target current densities has been improved. The constraints are periodically tightened and loosened during the optimization procedure resulting in a more effective optimization. The inputs of the computerized method are the given source parameters, the first-order properties of the lens, and some other constraints like a potential limit on the electrodes and a maximum allowed electric field. The output is the potential distribution on the electrodes of a given multielectrode lens or the spline coefficients of a spline lens model. Some computational results are presented for a Ga liquid metal ion source. Keeping the given source parameters and working distances constant, essential improvements of the optical properties of some well-known designs could be achieved by replacing the lenses with those designed by our procedures. A sensitivity analysis is given in conclusion.

Szep, J.; Szilagyi, M. (Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ (USA))

1990-09-01T23:59:59.000Z

76

Gravitational Lens Modeling with Genetic Algorithms and Particle Swarm Optimizers  

E-Print Network [OSTI]

Strong gravitational lensing of an extended object is described by a mapping from source to image coordinates that is nonlinear and cannot generally be inverted analytically. Determining the structure of the source intensity distribution also requires a description of the blurring effect due to a point spread function. This initial study uses an iterative gravitational lens modeling scheme based on the semilinear method to determine the linear parameters (source intensity profile) of a strongly lensed system. Our 'matrix-free' approach avoids construction of the lens and blurring operators while retaining the least squares formulation of the problem. The parameters of an analytical lens model are found through nonlinear optimization by an advanced genetic algorithm (GA) and particle swarm optimizer (PSO). These global optimization routines are designed to explore the parameter space thoroughly, mapping model degeneracies in detail. We develop a novel method that determines the L-curve for each solution automa...

Rogers, Adam

2011-01-01T23:59:59.000Z

77

Generation of Sound Bullets with a Nonlinear Acoustic Lens  

E-Print Network [OSTI]

Acoustic lenses are employed in a variety of applications, from biomedical imaging and surgery, to defense systems, but their performance is limited by their linear operational envelope and complexity. Here we show a dramatic focusing effect and the generation of large amplitude, compact acoustic pulses (sound bullets) in solid and fluid media, enabled by a tunable, highly nonlinear acoustic lens. The lens consists of ordered arrays of granular chains. The amplitude, size and location of the sound bullets can be controlled by varying static pre-compression on the chains. We support our findings with theory, numerical simulations, and corroborate the results experimentally with photoelasticity measurements. Our nonlinear lens makes possible a qualitatively new way of generating high-energy acoustic pulses, enabling, for example, surgical control of acoustic energy.

Alessandro Spadoni; Chiara Daraio

2009-08-31T23:59:59.000Z

78

Ambiguities in fits of binary lens galactic microlensing events  

E-Print Network [OSTI]

For observed galactic microlensing events only one fit is usually presented, though, especially for a binary lens, several fits may be possible. This has been shown for the MACHO LMC#1 event (Dominik & Hirshfeld 1996). Here I discuss the strong binary lens events OGLE#7 and DUO#2. It is shown that several models with a large variety of parameters are in accordance with the photometric data. For most of the fits, 1-sigma-bounds on the fit parameters are given. The variation of the parameters within the bounds is in some cases considerable. It is likely that other binary lens systems which will occur will have properties similar to the discussed events.

M. Dominik

1998-08-13T23:59:59.000Z

79

Stability, unfolding, and aggregation of the gamma D and gamma S human eye lens crystallins  

E-Print Network [OSTI]

The transparency of the human eye lens depends on the properties of the a- crystallin and py-crystallin families of proteins, which accumulate to very high concentrations in mature lens fiber cells. The 0- and y-crystallins ...

Mills-Henry, Ishara Amenti Rakem

2007-01-01T23:59:59.000Z

80

Above- and belowground competition from longleaf pine plantations limits performance of reintroduced herbaceous species.  

SciTech Connect (OSTI)

Although overstory trees limit the abundance and species richness of herbaceous vegetation in longleaf pine (Pinus palustris Mill.) plantations, the responsible mechanisms are poorly understood because of confounding among limiting factors. In fall 1998, research was initiated to determine the separate effects of above- and belowground competition and needlefall from overstory pines on understory plant performance. Three 13- to 15-yr-old plantations near Aiken, SC, were thinned to 0, 25, 50, or 100% of nonthinned basal area (19.5 m2 ha-1). Combinations of trenching (to eliminate root competition) and needlefall were applied to areas within each plot, and containerized seedlings of 14 perennial herbaceous species and longleaf pine were planted within each. Overstory crown closure ranged from 0 to 81%, and soil water and available nitrogen varied consistently with pine stocking, trenching, or their combination. Cover of planted species decreased an average of 16.5 and 14.1% as a result of above- and below-ground competition, respectively. Depending on species, needlefall effects were positive, negative, or negligible. Results indicate that understory restoration will be most successful when herbaceous species are established within canopy openings (0.1-0.2 ha) managed to minimize negative effects from above- and belowground competition and needlefall.

T.B. Harrington; C.M. Dagley; M.B. Edwards.

2003-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Effects of thinning and herbicide application on vertebrate communities in longleaf pine plantations  

SciTech Connect (OSTI)

Currently, nearly 98% of the land area once dominated by longleaf pine ecosystems has been converted to other uses. The U.S. Forest Service is replanting logged areas with longleaf pine at the Savannah River Site, New Ellenton, South Carolina, in an effort to restore these ecosystems. To ascertain the effects of various silvicultural management techniques on the vertebrate communities, we surveyed small mammal, herpetofaunal, and avian communities in six 10- to 13-year-old longleaf pine plantations subjected to various thinning and herbicide regimes. Areas within each plantation were randomly assigned one of four treatments: thinning, herbicide spraying, thinning and herbicide, and an untreated control. For all vertebrate groups, abundance and species diversity tended to be less in the controls than treated areas. Birds and small mammals were most abundant and diverse in thinned treatments versus spray only and control. Herpetofauna capture rates were low and, thus, we were unable to detect treatment-related differences. Silvicultural treatments that reduce hardwood stem density and pine basal area can enhance habitat conditions for numerous vertebrate species.

Brunjes, Kristina J.; Miller, Karl V.; Ford, Mark W.; Harrington, Timothy B.; Edwards, Boyd M.

2003-07-01T23:59:59.000Z

82

Efficient Eye Pointing with a Fisheye Lens Michael Ashmore, Andrew T. Duchowski  

E-Print Network [OSTI]

Efficient Eye Pointing with a Fisheye Lens Michael Ashmore, Andrew T. Duchowski Department, Canada Abstract This paper evaluates refinements to existing eye pointing techniques involving a fisheye lens. We use a fisheye lens and a video-based eye tracker to locally magnify the dis- play at the point

Duchowski, Andrew T.

83

PETROLEUM PLANTATIONS  

E-Print Network [OSTI]

ed). "Energy: Global Prospects 1985-2000 11 • New York (as Energy Converters 11 • Publ ishlng-cO:, New York (1977)oSolar Energy for Man 11 • John Wiley Sons, New York (1976).

Calvin, Melvin

2011-01-01T23:59:59.000Z

84

Effects of polyethylene mulch in a short-rotation, poplar plantation vary with weed-control strategies,  

E-Print Network [OSTI]

Effects of polyethylene mulch in a short-rotation, poplar plantation vary with weed polyethylene mulch (poly mulch) across a range of site conditions, weed-control treatments and genotypes rights reserved. Keywords: Polyethylene mulch; Woody crops; Weed control Forest Ecology and Management

Green, Scott

85

PhD or Masters scholarship to undertake research on the Impact of carbon trading on plantation forestry  

E-Print Network [OSTI]

forestry A PhD or Masters scholarship is available from the School of Forestry at the University forestry. The Emissions Trading Scheme (ETS) has the potential to have a major impact on plantation forestry in New Zealand including · Profitability and risk · Whether to harvest and when to harvest

Hickman, Mark

86

Gravitational lens modelling in a citizen science context  

E-Print Network [OSTI]

We develop a method to enable collaborative modelling of gravitational lenses and lens candidates, that could be used by non-professional lens enthusiasts. It uses an existing free-form modelling program (glass), but enables the input to this code to be provided in a novel way, via a user-generated diagram that is essentially a sketch of an arrival-time surface. We report on an implementation of this method, SpaghettiLens, which has been tested in a modelling challenge using 29 simulated lenses drawn from a larger set created for the Space Warps citizen science strong lens search. We find that volunteers from this online community asserted the image parities and time ordering consistently in some lenses, but made errors in other lenses depending on the image morphology. While errors in image parity and time ordering lead to large errors in the mass distribution, the enclosed mass was found to be more robust: the model-derived Einstein radii found by the volunteers were consistent with those produced by one of...

Küng, Rafael; More, Anupreeta; Baeten, Elisabeth; Coles, Jonathan; Cornen, Claude; Macmillan, Christine; Marshall, Phil; More, Surhud; Odermatt, Jonas; Verma, Aprajita; Wilcox, Julianne K

2015-01-01T23:59:59.000Z

87

Rigor Through the Lens of Drug Discovery and Development  

E-Print Network [OSTI]

flavors of incentives: economic, social, and moral. · Academic and Industrial cultures/ incentivesRigor Through the Lens of Drug Discovery and Development · The game · Culture and incentives · Our and development? · Resources: Money, time, and access to multiple non-academic skill sets · Incentives/ Culture

88

The Cosmic Lens All-Sky Survey:II. Gravitational lens candidate selection and follow-up  

E-Print Network [OSTI]

We report the final results of the search for gravitationally lensed flat-spectrum radio sources found in the combination of CLASS (Cosmic Lens All Sky Survey) and JVAS (Jodrell-Bank VLA Astrometric Survey). VLA observations of 16,503 sources have been made, resulting in the largest sample of arcsec-scale lens systems available. Contained within the 16,503 sources is a complete sample of 11,685 sources having two-point spectral indices between 1.4 and 5 GHz flatter than -0.5 and 5 GHz flux densities $\\geq$30 mJy. A subset of 8,958 sources form a well-defined statistical sample suitable for analysis of the lens statistics. We describe the systematic process by which 149 candidate lensed sources were picked from the statistical sample on the basis of possessing multiple compact components in the 0.2 arcsec-resolution VLA maps. Candidates were followed up with 0.05 arcsec resolution MERLIN and 0.003 arcsec VLBA observations at 5 GHz and rejected as lens systems if they failed well-defined surface brightness and/or morphological tests. Maps for all the candidates can be found on the World Wide Web at http://www.jb.man.ac.uk/research/gravlens/index.html We summarize the properties of each of the 22 gravitational lens systems in JVAS/CLASS. Twelve are double-image systems, nine are four-image systems and one is a six-image system. Thirteen constitute a statistically well-defined sample giving a point-source lensing rate of 1:690$\\pm$190. The interpretation of the results in terms of the properties of the lensing galaxy population and cosmological parameters will be published elsewhere. (Abridged)

I. W. A. Browne; P. N. Wilkinson; N. J. F. Jackson; S. T. Myers; C. D. Fassnacht; L. V. E. Koopmans; D. R. Marlow; M. Norbury; D. Rusin; C. M. Sykes; A. D. Biggs; R. D. Blandford; A. G. de Bruyn; K-H. Chae; P. Helbig; L. J. King; J. P. McKean; T. J. Pearson; P. M. Phillips; A. C. S. Readhead; E. Xanthopoulos; T. York

2002-11-11T23:59:59.000Z

89

Impact of the 2008 Ice Storm on Moso Bamboo plantations in southeast China  

SciTech Connect (OSTI)

A massive ice and snow storm occurred in early 2008 in South China and caused extensive damage to forests. Thirty-six plots of moso bamboo (Phyllostachys pubescens) plantation were established following the ice storm in the central growth area of moso bamboo, Fenyi, Jiangxi province, China. The topographical condition and stand attributes, and the ice storm impact on moso bamboo plantations were investigated. We found that an average of 54.48% ( 17.58%) bamboo culms was damaged. The damage patterns included bending, snapping and uprooting, which accounted for 17.01% ( 7.28%), 22.37% ( 11.58%) and 15.11% ( 11.54%) of the total respectively. An average of 16.42 ( 7.09) tons per hectare dead dry biomass was produced, accounting for 37.73% ( 14.41%) of total aboveground biomass. A mean value of 8.21 ( 3.55) Mg C per hectare was shifted from living biomass to dead. Stand level analysis showed a significant increase in damage level and dead biomass production at north-oriented slopes, and with high stand density (between 3000 and 4500 culm/ha). High altitude caused a higher proportion of snapped culms but a lower proportion of uprooted. Analysis at individual culm level suggested that the susceptibility for a culm to break or uproot due to ice storm would rise as its diameter increased, while the susceptibility to bend would decline. The young (one year old) culm was more susceptible to snapping or bending while over-mature (>5 years old) culm was more susceptible to uprooting, implying it is a good managing practice to harvest mature culm timely.

Zhou, Dr. Benzhi [Chinese Academy of Forestry; Li, Zhengcai [Chinese Academy of Forestry; Cao, Yonghui [Chinese Academy of Forestry; An, Yanfei [Chinese Academy of Forestry; Deng, Dr. Zongfu [Chinese Academy of Forestry; Wang, Gang [Chinese Academy of Forestry; Gu, Lianhong [ORNL

2011-01-01T23:59:59.000Z

90

Tree death in poplar plantations, summer 2005 The poplar varieties Hoogvorst and Hazendans suffered from widespread death and decline at a  

E-Print Network [OSTI]

in research plots of short rotation coppice growing in southern England. The very dense canopy and close spacing in short rotation coppice plantations was thought to provide ideal conditions for these pathotypes

91

Electrically tunable graded index planar lens based on graphene  

SciTech Connect (OSTI)

The realization of electrically tunable beam focusing using a properly designed conductivity pattern along a strip on a background single graphene flake with operation in the terahertz regime is proposed and numerically investigated. The strip is illuminated with a guided surface plasmon polaritons (SPP) plane wave and the physical origin of the design procedure is evaluated from the phase of effective mode index of propagating SPP wave on graphene. Upon tuning a gate voltage between the graphene sheet and the substrate, the focus tuning is achieved. Finite- difference time-domain numerical technique is employed to explore the propagation characteristic of SPP wave and the performance parameters of the lens include the focal length, full-width half-maximum, and focusing efficiency. Such a one atom thick planar lens with the capability of electrical focus tuning besides the compatibility with current planar optoelectronic systems can find valuable potential applications in the field of transformational plasmon optics.

Nasari, H., E-mail: Hadiseh-Nasari@ee.kntu.ac.ir; Abrishamian, M. S. [Department of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran 16314 (Iran, Islamic Republic of)

2014-08-28T23:59:59.000Z

92

A Fisheye Lens as a Photonic Doppler Velocimetry Probe  

SciTech Connect (OSTI)

These presentation visuals report an instrument that, by use of a fish-eye lens, generates a beat signal using fiber mixing of unshifted light with Doppler-shifted light and measures the beat frequency. Ray trace diagrams are shown to illustrate advantages and disadvantages. The authors find their instrument has a long tracking distance, and large angle coverage. Index matching eases assembly, reduces return loss and flattens the field.

Frogget, B. C.

2012-08-16T23:59:59.000Z

93

Video Monitoring and Control of the LENS Process  

SciTech Connect (OSTI)

The LENS (Laser Engineered Net Shaping) process has significant potential impact to the manufacturing community in producing near-net shape rapid prototypes, tooling and customized small lot parts. LEINS has its roots in stereolithography and weld surfacing. Parts are built up in layers by delivering powder carried in an inert gas stream directed via nozzles to a laser-produced molten pool. A robust implementation of this technology requires a thorough understanding of how the thermal history during part fabrication influences the dimensions, microstructure and properties of the part. This understanding, in combination with effective closed loop feedback control of the process, and modeling of the part to be formed, is required to ensure routine fabrication of components with appropriate properties Thermal behavior at high temperatures (above 800 C) can be readily monitored by visible light radiation pyrometry. In this work a high speed digital camera with a narrow bandpass optical filter was used to obtain thermal images of the LENS process zone. The thermal imaging system was incorporated into the optical path of the laser so that the melt pool and adjacent areas of the part could be monitored without intrusive hardware add-ens at the lens/powder nozzle/process zone vicinity. The output of the digital camera was collected by a fiarne grabber card in a personal computer (PC). Characteristics of the melt pool were evaluated and then used as inputs to a Proportional-Integral-Derivative (PID) control algorithm also running on the PC. The output of the PID algorithm was then used to control the laser power. Running the closed loop control resulted in significant stabilization of the melt pool size during simulated fabrication experiments. We will describe the equipment, algorithms, experiments and results obtained from LENS-formed simple shapes of 316 Stainless Steel.

HOFMEISTER,WILLIAM; KNOROVSKY,GERALD A.; MACCALLUM,DANNY O.

1999-11-30T23:59:59.000Z

94

The effects of precommercial thinning and midstory-control on the flora and fauna of young longleaf pine plantations.  

SciTech Connect (OSTI)

I examined the effects of longleaf pine (Pinus palustris) restoration using plantation silviculture on the avian, small mammal, and herpetofauna communities on the Savannah River Site, a National Environmental Research Park near Aiken, South Carolina. Vertebrate populations were surveyed from 1995 through 2003 on a series of plantations that had been precommercially thinned and/or received midstory-control via herbicides between 1994 and 1996. Understory and overstory vegetation was surveyed from 1994 through 2004. Thinning and midstory vegetation reduction treatments had greater herbaceous cover than the control through 2004 after a 1-2 year decline on midstory-control plots. Initially, thinned plots had the greatest herbaceous cover. However from 1998 through 2004, the combined treatment had the most herbaceous cover. Without midstory-control, thinning released midstory hardwoods. The effect of thinning or midstory-control alone on bird abundance was positive but short-lived. The positive effects were larger and persisted longer on combined treatment plots. My results indicate that precommercial thinning longleaf plantations, particularly when combined with midstory-control and prescribed fire, had a modest beneficial impact on avian communities by developing stand conditions more typical of natural longleaf stands maintained by periodic fire. All treatments resulted in short-term increases in small mammal abundance, but effects were minimal by 5-7 years after treatment. By 2001, pine basal area had returned to pre-treatment levels on thinned plots suggesting that frequent thinning may be required to maintain abundant and diverse small mammal communities in longleaf pine plantations. I did not detect any treatment related differences in herpetofauna abundance. These results suggest that restoring longleaf with a combination of precommercial thinning, midstory-control with herbicides, and prescribed fire can have a short-term positive effect on the avian and small mammal communities without affecting the herpetofauna community. However, periodic thinnings may be necessary to extend the positive effects.

Simmons, Robert.

2007-05-01T23:59:59.000Z

95

Performance of Planted Herbaceous Species in Longleaf Pine (Pinus palustris Mill.) Plantations: Overstory Effects of Competition and Needlefall  

SciTech Connect (OSTI)

Research to determine the separate effects of above-ground and below-ground competition and needlefall of over-story pines on under-story plant performance. Periodic monitoring of over-story crown closure, soil water content, temperature, and nutrients were conducted. Results indicate competition for light had a more determental effect on performance of herbaceous species in longleaf pine plantations than that resulting from competition for below-ground resources.

Dagley, C.M.

2001-07-03T23:59:59.000Z

96

The Sloan Digital Sky Survey Quasar Lens Search. IV. Statistical Lens Sample from the Fifth Data Release  

SciTech Connect (OSTI)

We present the second report of our systematic search for strongly lensed quasars from the data of the Sloan Digital Sky Survey (SDSS). From extensive follow-up observations of 136 candidate objects, we find 36 lenses in the full sample of 77,429 spectroscopically confirmed quasars in the SDSS Data Release 5. We then define a complete sample of 19 lenses, including 11 from our previous search in the SDSS Data Release 3, from the sample of 36,287 quasars with i < 19.1 in the redshift range 0.6 < z < 2.2, where we require the lenses to have image separations of 1 < {theta} < 20 and i-band magnitude differences between the two images smaller than 1.25 mag. Among the 19 lensed quasars, 3 have quadruple-image configurations, while the remaining 16 show double images. This lens sample constrains the cosmological constant to be {Omega}{sub {Lambda}} = 0.84{sub -0.08}{sup +0.06}(stat.){sub -0.07}{sup + 0.09}(syst.) assuming a flat universe, which is in good agreement with other cosmological observations. We also report the discoveries of 7 binary quasars with separations ranging from 1.1 to 16.6, which are identified in the course of our lens survey. This study concludes the construction of our statistical lens sample in the full SDSS-I data set.

Inada, Naohisa; /Wako, RIKEN /Tokyo U., ICEPP; Oguri, Masamune; /Natl. Astron. Observ. of Japan /Stanford U., Phys. Dept.; Shin, Min-Su; /Michigan U. /Princeton U. Observ.; Kayo, Issha; /Tokyo U., ICRR; Strauss, Michael A.; /Princeton U. Observ.; Hennawi, Joseph F.; /UC, Berkeley /Heidelberg, Max Planck Inst. Astron.; Morokuma, Tomoki; /Natl. Astron. Observ. of Japan; Becker, Robert H.; /LLNL, Livermore /UC, Davis; White, Richard L.; /Baltimore, Space Telescope Sci.; Kochanek, Christopher S.; /Ohio State U.; Gregg, Michael D.; /LLNL, Livermore /UC, Davis /Exeter U.

2010-05-01T23:59:59.000Z

97

The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm by  

E-Print Network [OSTI]

The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm PURPOSE. To assess the effects of NDM from cranberries on Staphylococcus epidermidis biofilm formed

Jacob, Eshel Ben

98

High Resolution Backside Imaging and Thermography using a Numerical Aperture Increasing Lens  

E-Print Network [OSTI]

High Resolution Backside Imaging and Thermography using a Numerical Aperture Increasing Lens M. S, representing the highest resolution subsurface thermography to date. Keywords: thermal imaging, high

99

E-Print Network 3.0 - achromatic telecentric lens Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Engineering ; Physics 3 Achromatic planar-integrated free-space optical Fourier transformer G. Minguez-Vega, M. Gruber, J. Jahns Summary: of a conventional (refractive) lens...

100

Zoned near-zero refractive index fishnet lens antenna: Steering millimeter waves  

SciTech Connect (OSTI)

A zoned fishnet metamaterial lens is designed, fabricated, and experimentally demonstrated at millimeter wavelengths to work as a negative near-zero refractive index lens suitable for compact lens antenna configurations. At the design frequency f?=?56.7?GHz (?{sub 0}?=?5.29?mm), the zoned fishnet metamaterial lens, designed to have a focal length FL?=?9?{sub 0}, exhibits a refractive index n?=??0.25. The focusing performance of the diffractive optical element is briefly compared with that of a non-zoned fishnet metamaterial lens and an isotropic homogeneous zoned lens made of a material with the same refractive index. Experimental and numerically-computed radiation diagrams of the fabricated zoned lens are presented and compared in detail with that of a simulated non-zoned lens. Simulation and experimental results are in good agreement, demonstrating an enhancement generated by the zoned lens of 10.7?dB, corresponding to a gain of 12.26?dB. Moreover, beam steering capability of the structure by shifting the feeder on the xz-plane is demonstrated.

Pacheco-Peña, V., E-mail: victor.pacheco@unavarra.es; Orazbayev, B., E-mail: b.orazbayev@unavarra.es; Beaskoetxea, U., E-mail: unai.beaskoetxea@unavarra.es; Beruete, M., E-mail: miguel.beruete@unavarra.es [TERALAB (MmW—THz—IR and Plasmonics Laboratory), Universidad Pública de Navarra, Campus Arrosadía, 31006 Pamplona (Spain); Navarro-Cía, M., E-mail: m.navarro@imperial.ac.uk [Optical and Semiconductor Devices Group, Department of Electrical and Electronic Engineering, Imperial College London, London SW7 2BT (United Kingdom); Centre for Plasmonics and Metamaterials, Imperial College London, London SW7 2AZ (United Kingdom); Centre for Terahertz Science and Engineering, Imperial College London, London SW7 2AZ (United Kingdom)

2014-03-28T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Micron-scale lens array having diffracting structures  

DOE Patents [OSTI]

A novel micron-scale lens, a microlens, is engineered to concentrate light efficiently onto an area of interest, such as a small, light-sensitive detector element in an integrated electronic device. Existing microlens designs imitate the form of large-scale lenses and are less effective at small sizes. The microlenses described herein have been designed to accommodate diffraction effects, which dominate the behavior of light at small length scales. Thus a new class of light-concentrating optical elements with much higher relative performance has been created. Furthermore, the new designs are much easier to fabricate than previous designs.

Goldberg, Kenneth A

2013-10-29T23:59:59.000Z

102

Plasmonic lens enhanced mid-infrared quantum cascade detector  

SciTech Connect (OSTI)

We demonstrate monolithic integrated quantum cascade detectors enhanced by plasmonic lenses. Surface normal incident mid-infrared radiation is coupled to surface plasmon polaritons guided to and detected by the active region of the detector. The lens extends the optical effective active area of the device up to a 5 times larger area than for standard mesa detectors or pixel devices while the electrical active region stays the same. The extended optical area increases the absorption efficiency of the presented device as well as the room temperature performance while it offers a flexible platform for various detector geometries. A photocurrent response increase at room temperature up to a factor of 6 was observed.

Harrer, Andreas, E-mail: andreas.harrer@tuwien.ac.at; Schwarz, Benedikt; Gansch, Roman; Reininger, Peter; Detz, Hermann; Zederbauer, Tobias; Andrews, Aaron Maxwell; Schrenk, Werner; Strasser, Gottfried [Institute for Solid State Electronics and Center for Micro- and Nanostructures, Vienna University of Technology, 1040 Vienna (Austria)

2014-10-27T23:59:59.000Z

103

High Resolution Backside Imaging and Thermography using a Numerical Aperture Increasing Lens  

E-Print Network [OSTI]

High Resolution Backside Imaging and Thermography using a Numerical Aperture Increasing Lens Shawn inspection alone, it is necessary to develop techniques, such as thermography, with the capability ­solid immersion lens microscopy and thermography. Standard non-contact optical resolution is limited

104

Telecentric Zoom Lens Designed for the Cygnus X-Ray Source  

SciTech Connect (OSTI)

Cygnus is a high-energy radiographic x-ray source. Three large zoom lenses have been assembled to collect images from large scintillators. A large elliptical pellicle (394 × 280 mm) deflects the scintillator light out of the x-ray path into an eleven-element zoom lens coupled to a CCD camera. The zoom lens and CCD must be as close as possible to the scintillator to maximize light collection. A telecentric lens design minimizes image blur from a volume source. To maximize the resolution of objects of different sizes, the scintillator and zoom lens are translated along the x-ray axis, and the zoom lens magnification changes. Zoom magnification is also changed when different-sized recording cameras are used (50 or 62 mm square format). The LYSO scintillator measures 200 × 200 mm and is 5 mm thick. The scintillator produces blue light peaking at 435 nm, so special lens materials are required. By swapping out one doublet and allowing all other lenses to be repositioned, the zoom lens can also use a CsI(Tl) scintillator that produces green light centered at 540 nm. All lenses have an anti-reflective coating for both wavelength bands. Two sets of doublets, the stop, the scintillator, and the CCD camera move during zoom operations. One doublet has x?y compensation. Each zoom lens uses 60 lb of glass inside the 425 lb mechanical structure and can be used in either a vertical or horizontal orientation.

Malone, R. M. [NSTec; Baker, S. A. [NSTec; Brown, K. K. [NSTec; Curtis, A. H. [NSTec; Esquibel, D. L. [NSTec; Frayer, D. K. [NSTec; Frogget, B. C. [NSTec; Frogget, K. G. [NSTec; Kaufman, M. I. [NSTec; Smith, A. S. [NSTec; Tibbitts, A. [NSTec; Howe, R. A. [NSTec; Huerta, J. A. [NSTec; McGillivray, K. D. [NSTec; Droemer, D. W. [NSTec; Crain, M. D. [NSTec; Haines, T. J. [LANL; King, S. P. [LANL

2013-07-01T23:59:59.000Z

105

Manufacturing injection-moleded Fresnel lens parquets for point-focus concentrating photovoltaic systems  

SciTech Connect (OSTI)

This project involved the manufacturing of curved-faceted, injection-molded, four-element Fresnel lens parquets for concentrating photovoltaic arrays. Previous efforts showed that high-efficiency (greater than 82%) Fresnel concentrators could be injection molded. This report encompasses the mold design, molding, and physical testing of a four-lens parquet for a solar photovoltaic concentrator system.

Peters, E.M.; Masso, J.D. [AOtec, Southbridge, MA (United States)

1995-10-01T23:59:59.000Z

106

Progress on Plasma Lens Experiment at the Final Focus Test Beam *  

E-Print Network [OSTI]

Progress on Plasma Lens Experiment at the Final Focus Test Beam * S. Chattopadhyay 1 , P. Chen 2 Collaboration proposed and has been approved to perform the Plasma Lens Experiment at the Final Focus Test Beam of the experiment are to study plasma focusing of high energy, high density particle beams; to investigate plasma

107

Electrical Conductivity, Near-Infrared Absorption, and Thermal Lens Spectroscopic Studies of Percolation of Microemulsions  

E-Print Network [OSTI]

Electrical Conductivity, Near-Infrared Absorption, and Thermal Lens Spectroscopic Studies studied below and above the percolation thresholds by electrical conductivity, near-infrared absorption. In this work the structure of microemulsions was investigated by using the near-IR absorption and thermal lens

Reid, Scott A.

108

Three-dimensional isotropic perfect lens based on LC-loaded transmission lines  

E-Print Network [OSTI]

An isotropic three-dimentional perfect lens based on cubic meshes of interconnected transmission lines and bulk loads is proposed. The lens is formed by a slab of a loaded mesh placed in between two similar unloaded meshes. The dispersion equations and the characteristic impedances of the eigenwaves in the meshes are derived analytically, with an emphasis on generality. This allows designing of transmission-line meshes with desired dispersion properties. The required backward-wave mode of operation in the lens is realized with simple inductive and capacitive loads. An analytical expression for the transmission through the lens is derived and the amplification of evanescent waves is demonstrated. Factors that influence enhancement of evanescent waves in the lens are studied and the corresponding design criteria are established. A possible realization of the structure is outlined.

P. Alitalo; S. Maslovski; S. Tretyakov

2005-09-16T23:59:59.000Z

109

Developing Supersonic Impactor and Aerodynamic Lens for Separation and Handling of Nano-Sized Particles  

SciTech Connect (OSTI)

A computational model for supersonic flows of compressible gases in an aerodynamic lens with several lenses and in a supersonic/hypersonic impactor was developed. Airflow conditions in the aerodynamic lens were analyzed and contour plots for variation of Mach number, velocity magnitude and pressure field in the lens were evaluated. The nano and micro-particle trajectories in the lens and their focusing and transmission efficiencies were evaluated. The computational model was then applied to design of a aerodynamic lens that could generate focus particle beams while operating under atmospheric conditions. The computational model was also applied to airflow condition in the supersonic/hypersonic impactor. Variations of airflow condition and particle trajectories in the impactor were evaluated. The simulation results could provide understanding of the performance of the supersonic and hypersonic impactors that would be helpful for the design of such systems.

Goodarz Ahmadi

2008-06-30T23:59:59.000Z

110

Seasonal feeding habits of white-tailed deer (Odocoileus virginianus Bodd.) in young loblolly pine (pinus taeda L.) plantations  

E-Print Network [OSTI]

Two-year old loblolly pine plantations were selected because at that age the tender apical buds of the young pines are within the feeding range of the deer. The two sites chosen had similar site preparation, were planted to the identical species..., as plant growth mstures in late spring or early suarer the tissues, particularly stems, of all species decline in palatability as the fiber fraction increases (Short 1969) . Thus, selectivity by deer may be affected by food quality as well as food...

Furrh, Patricia Louise

1983-01-01T23:59:59.000Z

111

Root biomass and nutrient content of a 25-year-old loblolly pine (Pinus Taeda L.) plantation in East Texas  

E-Print Network [OSTI]

ROOT BIOMASS AND NUTRIENT CONTENT OF A 25-YEAR-OLD LOBLOLLY PINE (PINUP TAED!l LJ PIJIN ATION IN EAST TEIJIS A Thesis by Charles LaGrone Tuttle Submitted to the Graduate College of Texa s A & M University in partial, fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1978 iVIajor Subject: Forest S "ience ROOT BIOMASS AND NUTRIENT CONTENT OF A 25-YEAR-OLD LOBLOLLY PINE (PINUS TAEDA L. ) PLANTATION IN EAST TEXAS A Thesis by Charles LaGrone Tuttle Approved...

Tuttle, Charles LaGrone

1978-01-01T23:59:59.000Z

112

International Lens Design Conference, Monterey, CA, June 11-14, 1990, Proceedings  

SciTech Connect (OSTI)

The present conference on lens design encompasses physical and geometrical optics, diffractive optics, the optimization of optical design, software packages, ray tracing, the use of artificial intelligence, the achromatization of materials, zoom optics, microoptics and GRIN lenses, and IR lens design. Specific issues addressed include diffraction-performance calculations in lens design, the optimization of the optical transfer function, a rank-down method for automatic lens design, applications of quadric surfaces, the correction of aberrations by using HOEs in UV and visible imaging systems, and an all-refractive telescope for intersatellite communications. Also addressed are automation techniques for optics manufacturing, all-reflective phased-array imaging telescopes, the thermal aberration analysis of a Nd:YAG laser, the analysis of illumination systems, athermalized FLIR optics, and the design of array systems using shared symmetry.

Lawrence, G.N. (Arizona University, Tucson (United States))

1990-01-01T23:59:59.000Z

113

Reply to comment on Perfect drain for the Maxwell fish eye lens  

E-Print Network [OSTI]

We reply to the comments on our paper Perfect Drain for the Maxwell fish eye lens (NJP 13 (2011) 023038) made by Fei Sun. We believe that Sun comments have several mistakes in theoretical concepts and simulation results.

Gonzalez, Juan C; Minnano, Juan C; Grabovickic, Dejan

2013-01-01T23:59:59.000Z

114

E-Print Network 3.0 - aspherical compound lens Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: ) is driven by four flat mirrors up to the tokamak were is focused to the plasma center by a 1 m focal lens... scattering system 2. The 90 scattered light is...

115

R&D progress on second-generation crystals for Laue lens applications  

E-Print Network [OSTI]

The concept of a gamma-ray telescope based on a Laue lens offers the possibility to increase the sensitivity by more than an order of magnitude with respect to existing instruments. Laue lenses have been developed by our collaboration for several years : the main achievement of this R&D program was the CLAIRE lens prototype. Since then, the endeavour has been oriented towards the development of efficient diffracting elements (crystal slabs), the aim being to step from a technological Laue lens to a scientifically exploitable lens. The latest mission concept featuring a gamma-ray lens is the European Gamma-Ray Imager (GRI) which intends to make use of the Laue lens to cover energies from 200 keV to 1300 keV. Investigations of two promising materials, low mosaicity copper and gradient concentration silicon-germanium are presented in this paper. The measurements have been performed during three runs on beamline ID15A of the European Synchrotron Radiation Facility, and on the GAMS 4 instrument of the Institute Laue-Langevin (both in Grenoble, France) using highly monochromatic beam of energy close to 500 keV. Despite it was not perfectly homogeneous, the presented copper crystal exhibits peak reflectivity of 25% in accordance with theoretical predictions, and a mosaicity around 26 arcsec, the ideal range for the realization of a Laue lens such as GRI. Silicon-germanium featuring a constant gradient have been measured for the very first time at 500 keV. Two samples showed a quite homogeneous reflectivity reaching 26%, which is far from the 48% already observed in experimental crystals but a very encouraging beginning. This results have been used to estimate the performance of the GRI Laue lens design.

N. Barrière; P. von Ballmoos; P. Bastie; P. Courtois; N. V. Abrosimov; K. Andersen; T. Buslaps; T. Camus; H. Halloin; M. Jentschel; J. Knodlseder; G. Roudil; D. Serre; G. Skinner

2008-08-06T23:59:59.000Z

116

Alignment and Testing of a Telecentric Zoom Lens Used for the Cygnus X-ray Source  

SciTech Connect (OSTI)

Cygnus is a high-energy radiographic x-ray source. Three large zoom lenses have been assembled to collect images from large scintillators. A large elliptical pellicle (394 × 280 mm) deflects the scintillator light out of the x-ray path into an eleven-element zoom lens coupled to a CCD camera. The zoom lens and CCD must be as close as possible to the scintillator to maximize light collection. A telecentric lens design minimizes image blur from a volume source. To maximize the resolution of objects of different sizes, the scintillator and zoom lens are translated along the x-ray axis, and the zoom lens magnification changes. Zoom magnification is also changed when different-sized recording cameras are used (50 or 62 mm square format). The LYSO scintillator measures 200 × 200 mm and is 5 mm thick. The scintillator produces blue light peaking at 435 nm, so special lens materials are required. By swapping out one doublet and allowing all other lenses to be repositioned, the zoom lens can also use a CsI(Tl) scintillator that produces green light centered at 540 nm (for future operations). All lenses have an anti-reflective coating for both wavelength bands. Two sets of doublets, the stop, the scintillator, and the CCD camera move during zoom operations. One doublet has x-y compensation. Alignment of the optical elements was accomplished using counter propagating laser beams and monitoring the retro-reflections and steering collections of laser spots. Each zoom lens uses 60 lb of glass inside the 425 lb mechanical structure, and can be used in either vertical or horizontal orientation.

Malone, R. M. [NSTec; Baker, S. A. [NSTec; Brown, K. K. [NSTec; Castaneda, J. J. [NSTec; Curtis, A. H. [NSTec; Danielson, J. [NSTec; Droemer, D. W. [NSTec; Esquibel, D. L. [NSTec; Haines, T. J. [LANL; Hollabaugh, J. S. [NSTec; Howe, R. A. [NSTec; Huerta, J. A. [NSTec; King, N. S. P. [LANL; Lutz, S. S. [NSTec; Kaufman, M. I. [NSTec; McGillivray, K. D. [NSTec; Smith, A. D. [NSTec; Stokes, B. M. [NSTec; Tibbitts, A. [NSTec

2013-09-01T23:59:59.000Z

117

Ice-lens formation and geometrical supercooling in soils and other colloidal materials  

E-Print Network [OSTI]

We present a new, physically-intuitive model of ice-lens formation and growth during the freezing of soils and other dense, particulate suspensions. Motivated by experimental evidence, we consider the growth of an ice-filled crack in a freezing soil. At low temperatures, ice in the crack exerts large pressures on the crack walls that will eventually cause the crack to split open. We show that the crack will then propagate across the soil to form a new lens. The process is controlled by two factors: the cohesion of the soil, and the geometrical supercooling of the water in the soil; a new concept introduced to measure the energy available to form a new ice lens. When the supercooling exceeds a critical amount (proportional to the cohesive strength of the soil) a new ice lens forms. This condition for ice-lens formation and growth does not appeal to any ad hoc, empirical assumptions, and explains how periodic ice lenses can form with or without the presence of a frozen fringe. The proposed mechanism is in good agreement with experiments, in particular explaining ice-lens pattern formation, and surges in heave rate associated with the growth of new lenses. Importantly for systems with no frozen fringe, ice-lens formation and frost heave can be predicted given only the unfrozen properties of the soil. We use our theory to estimate ice-lens growth temperatures obtaining quantitative agreement with the limited experimental data that is currently available. Finally we suggest experiments that might be performed in order to verify this theory in more detail. The theory is generalizable to complex natural-soil scenarios, and should therefore be useful in the prediction of macroscopic frost heave rates.

Robert W. Style; Stephen S. L. Peppin; Alan C. F. Cocks; John S. Wettlaufer

2011-09-09T23:59:59.000Z

118

Design and Assembly of a Telecentric Zoom Lens for the Cygnus X-ray Source  

SciTech Connect (OSTI)

Cygnus is a high-energy radiographic x-ray source. The rod-pinch x-ray diode produces a point source measuring 1 mm diameter. The target object is placed 1.5 m from the x-ray source, with a large LYSO scintillator at 2.4 m. Different-sized objects are imploded within a containment vessel. A large pellicle deflects the scintillator light out of the x-ray path into an 11-element zoom lens coupled to a CCD camera. The zoom lens and CCD must be as close as possible to the scintillator to maximize light collection. A telecentric lens design minimizes image blur from a volume source. To maximize the resolution of test objects of different sizes, the scintillator and zoom lens can be translated along the x-ray axis. Zoom lens magnifications are changed when different-sized scintillators and recording cameras are used (50 or 62 mm square format). The LYSO scintillator measures 200 × 200 mm and is 5 mm thick. The scintillator produces blue light peaking at 435 nm, so special lens materials are required. By swapping out one lens element and allowing all lenses to move, the zoom lens can also use a CsI(Tl) scintillator that produces green light centered at 550 nm. All lenses are coated with anti-reflective coating for both wavelength bands. Two sets of doublets, the stop, and the CCD camera move during zoom operations. One doublet has XY compensation. The first three lenses use fused silica for radiation damage control. The 60 lb of glass inside the 340 lb mechanical structure is oriented vertically.

Malone, R M; Brown, K K; Curtis, A H; Esquibel, D L; Frayer, D K; Frogget, B C; Furlanetto, M R; Garten, J R; Haines, T J; Howe, R A; Huerta, J A; Kaufman, M I; King, N.S. P; Lutz, S S; McGillivray, K D

2012-10-01T23:59:59.000Z

119

Computerized method and system for designing an aerodynamic focusing lens stack  

DOE Patents [OSTI]

A computerized method and system for designing an aerodynamic focusing lens stack, using input from a designer related to, for example, particle size range to be considered, characteristics of the gas to be flowed through the system, the upstream temperature and pressure at the top of a first focusing lens, the flow rate through the aerodynamic focusing lens stack equivalent at atmosphere pressure; and a Stokes number range. Based on the design parameters, the method and system determines the total number of focusing lenses and their respective orifice diameters required to focus the particle size range to be considered, by first calculating for the orifice diameter of the first focusing lens in the Stokes formula, and then using that value to determine, in iterative fashion, intermediate flow values which are themselves used to determine the orifice diameters of each succeeding focusing lens in the stack design, with the results being output to a designer. In addition, the Reynolds numbers associated with each focusing lens as well as exit nozzle size may also be determined to enhance the stack design.

Gard, Eric (San Francisco, CA); Riot, Vincent (Oakland, CA); Coffee, Keith (Diablo Grande, CA); Woods, Bruce (Livermore, CA); Tobias, Herbert (Kensington, CA); Birch, Jim (Albany, CA); Weisgraber, Todd (Brentwood, CA)

2011-11-22T23:59:59.000Z

120

Laser engineered net shaping (LENS) for the repair and modification of NWC metal components.  

SciTech Connect (OSTI)

Laser Engineered Net Shaping{trademark} (LENS{reg_sign}) is a layer additive manufacturing process that creates fully dense metal components using a laser, metal powder, and a computer solid model. This process has previously been utilized in research settings to create metal components and new material alloys. The ''Qualification of LENS for the Repair and Modification of Metal NWC Components'' project team has completed a Technology Investment project to investigate the use of LENS for repair of high rigor components. The team submitted components from four NWC sites for repair or modification using the LENS process. These components were then evaluated for their compatibility to high rigor weapons applications. The repairs included hole filling, replacement of weld lips, addition of step joints, and repair of surface flaws and gouges. The parts were evaluated for mechanical properties, corrosion resistance, weldability, and hydrogen compatibility. This document is a record of the LENS processing of each of these component types and includes process parameters, build strategies, and lessons learned. Through this project, the LENS process was shown to successfully repair or modify metal NWC components.

Atwood, Clinton J.; Smugeresky, John E. (Sandia National Labs, Livermore,CA); Gill, David Dennis

2006-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Design of a lens table for a double toroidal electron spectrometer  

SciTech Connect (OSTI)

We report here on the method we developed to build a lens table for a four-element electrostatic transfer lens operated together with a double toroidal electron energy analyzer designed by one of us, and whose original design and further improvements are described in detail in Miron et al. [Rev. Sci. Instrum. 68, 3728 (1997)] and Le Guen et al. [Rev. Sci. Instrum. 73, 3885 (2002)]. Both computer simulations and laboratory instrument tuning were performed in order to build this lens table. The obtained result was tested for a broad range of electron kinetic energies and analyzer pass energies. Based on this new lens table, allowing to easily computer control the spectrometer working conditions, we could routinely achieve an electron energy resolution ranging between 0.6% and 0.8% of the analyzer pass energy, while the electron count rate was also significantly improved. The establishment of such a lens table is of high importance to relieve experimentalists from the tedious laboring of the lens optimization, which was previously necessary prior to any measurement. The described method can be adapted to any type of electron/ion energy analyzer, and will thus be interesting for all experimentalists who own, or plan to build or improve their charged particle energy analyzers.

Liu Xiaojng; Nicolas, Christophe; Miron, Catalin [Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex (France)

2013-03-15T23:59:59.000Z

122

LENS repair and modification of metal NW components:materials and applications guide.  

SciTech Connect (OSTI)

Laser Engineered Net Shaping{trademark} (LENS{reg_sign}) is a unique, layer additive, metal manufacturing technique that offers the ability to create fully dense metal features and components directly from a computer solid model. LENS offers opportunities to repair and modify components by adding features to existing geometry, refilling holes, repairing weld lips, and many other potential applications. The material deposited has good mechanical properties with strengths typically slightly higher that wrought material due to grain refinement from a quickly cooling weld pool. The result is a material with properties similar to cold worked material, but without the loss in ductility traditionally seen with such treatments. Furthermore, 304L LENS material exhibits good corrosion resistance and hydrogen compatibility. This report gives a background of the LENS process including materials analysis addressing the requirements of a number of different applications. Suggestions are given to aid both the product engineer and the process engineer in the successful utilization of LENS for their applications. The results of testing on interface strength, machinability, weldability, corrosion resistance, geometric effects, heat treatment, and repair strategy testing are all included. Finally, the qualification of the LENS process is briefly discussed to give the user confidence in selecting LENS as the process of choice for high rigor applications. The testing showed LENS components to have capability in repair/modification applications requiring complex castings (W80-3 D-Bottle bracket), thin wall parts requiring metal to be rebuilt onto the part (W87 Firing Set Housing and Y-12 Test Rings), the filling of counterbores for use in reservoir reclamation welding (SRNL hydrogen compatibility study) and the repair of surface defects on pressure vessels (SRNL gas bottle repair). The material is machinable, as testing has shown that LENS deposited material machines similar to that of welded metal. Tool wear is slightly higher in LENS material than in wrought material, but not so much that one would be concerned with increased tooling cost. The LENS process achieved process qualification for the AY1E0125 D-Bottle Bracket from the W80-3 LEP program, and in the effort, also underwent testing in weapons environments. These tests included structural dynamic response testing and drop testing. The LENS deposited parts were compared in these tests with conventionally machined parts and showed equivalency to such an extent that the parts were accepted for use in parallel path subsystem-level weapon environment testing. The evaluation of LENS has shown that the process can be a viable option when either complete metal parts are needed or existing metal parts require modification or repair. The LENS Qualification Technology Investment team successfully investigated new applications for the LENS process and showed that it has great applicability across the Nuclear Weapons Complex as well as in other high rigor applications.

Smugeresky, John E. (Sandia National Laboratories, Livermore, CA); Gill, David Dennis; Oberhaus, Jason (BWXT Y-12); Adams, Thad (Savannah River National Laboratory); VanCamp, Chad (Kansas City Plant)

2006-11-01T23:59:59.000Z

123

The E-lens test bench for RHIC beam-beam compensation  

SciTech Connect (OSTI)

To compensate for the beam-beam effects from the proton-proton interactions at IP6 and IP8 in the Relativistic Heavy Ion Collider (RHIC), we are fabricating two electron lenses that we plan to install at RHIC IR10. Before installing the e-lenses, we are setting-up the e-lens test bench to test the electron gun, collector, GS1 coil, modulator, partial control system, some instrumentation, and the application software. Some e-lens power supplies, the electronics for current measurement will also be qualified on test bench. The test bench also was designed for measuring the properties of the cathode and the profile of the beam. In this paper, we introduce the layout and elements of the e-lens test bench; and we discuss its present status towards the end of this paper.

Gu X.; Altinbas, F.Z.; Aronson, J.; Beebe, E. et al

2012-05-20T23:59:59.000Z

124

Negative refraction imaging of acoustic metamaterial lens in the supersonic range  

SciTech Connect (OSTI)

Acoustic metamaterials with negative refraction index is the most promising method to overcome the diffraction limit of acoustic imaging to achieve ultrahigh resolution. In this paper, we use localized resonant phononic crystal as the unit cell to construct the acoustic negative refraction lens. Based on the vibration model of the phononic crystal, negative quality parameters of the lens are obtained while excited near the system resonance frequency. Simulation results show that negative refraction of the acoustic lens can be achieved when a sound wave transmiting through the phononic crystal plate. The patterns of the imaging field agree well with that of the incident wave, while the dispersion is very weak. The unit cell size in the simulation is 0.0005 m and the wavelength of the sound source is 0.02 m, from which we show that acoustic signal can be manipulated through structures with dimensions much smaller than the wavelength of incident wave.

Han, Jianning [School of Information and Communication Engineering, North University of China, Taiyuan 030051 (China); Wen, Tingdun [Key Laboratory of Instrumental Science and Dynamic Testing, Ministry of Education, North University of China, Taiyuan 030051 (China); Key Laboratory of Electronic Testing Technology, North University of China, Taiyuan 030051 (China); Yang, Peng; Zhang, Lu [Key Laboratory of Electronic Testing Technology, North University of China, Taiyuan 030051 (China)

2014-05-15T23:59:59.000Z

125

Sense of Place - Alberta, Canada by Beverly Sandalack, Ann Davis, Len Novak and Bob Sandford [EDRA/Places Awards 2006 -- Planning  

E-Print Network [OSTI]

Canada Beverly Sandalack, Ann Davis, Len Novak, and Bobproducts and activities. Ann Davis, Director of the Nickle

Sullivan, Lisa

2006-01-01T23:59:59.000Z

126

Urban Stormwater and Watershed Management: A Case Study James P. Heaney, Len Wright, and David Sample  

E-Print Network [OSTI]

classified as Decision Support Systems (DSS) (Loucks 1995). Contemporary DSS's contain a mixture9-1 Chapter 9 Urban Stormwater and Watershed Management: A Case Study James P. Heaney, Len Wright. The concept of integrated water and land management was first articulated in the western U.S. by John Wesley

Pitt, Robert E.

127

Pneumatically switchable graded index metamaterial lens I. E. Khodasevych,1,2,a)  

E-Print Network [OSTI]

the material can pose a challenge for practical realiza- tion. The engineered refractive indices of metamaterials can be varied to a much greater extent than is possible with natu- ral materials by adjusting to alter the electromagnetic signature of a lens when it is not in use for stealth purposes. Tunable lenses

128

Commisioning of the second Tevatron electron lens and beam study results  

SciTech Connect (OSTI)

In the framework of Fermilab's Beam-Beam Compensation (BBC) project, the 2nd Tevatron Electron Lens (TEL2) was installed in the Tevatron during Spring 2006 shutdown. It was successfully commissioned and a series of beam studies has been carried out in single bunch and all-bunch modes. The paper describes TEL2 commissioning and beam studies results.

Kamerdzhiev, V.; Fellenz, B.; Hively, R.; Kuznetsov, G.; Olson, M.; Pfeffer, H.; Saewert, G.; Scarpine, V.; Shiltsev, V.; Zhang, X.L.; /Fermilab

2007-06-01T23:59:59.000Z

129

Simultaneous measurement of thermal lens and temperature map in ytterbium-doped fluoride crystals  

E-Print Network [OSTI]

characterization of temperature map and thermal lensing in Yb3+ :CaF2 and Yb3+ :SrF2 crystals under high-power with or without laser operation. We notice that all TL dioptric powers (Dth) are negative. Since the thermal lens focal length (fth) is inversely proportional to Dth, the measured thermal lenses are divergent for both

Paris-Sud XI, Université de

130

Sustainable Urban Water Management James P. Heaney, Len Wright, and David Sample  

E-Print Network [OSTI]

3-1 Chapter 3 Sustainable Urban Water Management James P. Heaney, Len Wright, and David Sample sustainable urban water management systems. Systems View of Urban Water Management The mid 1960's were and environmental management during the 1960's and 1970's because of strong federal support for research, a national

Pitt, Robert E.

131

An analysis of humor orientation on Facebook: A lens model approach  

E-Print Network [OSTI]

This article presents the results of a mixed method analysis of the use and perception of humor orientation (HO) on Facebook (FB) profiles (N?=?100). Results of the lens model analysis suggest that a variety of profile cues, not just those directly...

Pennington, Natalie; Hall, Jeffrey A.

2014-02-01T23:59:59.000Z

132

Optimization of composite tubes for a thermal optical lens housing design  

E-Print Network [OSTI]

and the manufacturing of a carbon fiber reinforced tube in an epoxy resin matrix. This structure intends to serve as the optical lens housing onboard a spacecraft. In addition, some future work needs to be done before this component is certified. The objective...

Garcia Gonzalez, Hector Camerino

2004-09-30T23:59:59.000Z

133

Near-infrared thermal lens spectrometer based on an erbium-doped fiber amplifier and  

E-Print Network [OSTI]

Near-infrared thermal lens spectrometer based on an erbium-doped fiber amplifier and an acousto, guanosine, and thymidine is described. © 1997 Optical Society of America Key words: Near infrared, thermal measurements of absorption in the near-IR region has been developed. In this instrument the near-IR excitation

Reid, Scott A.

134

Stormwater Storage-Treatment-Reuse Systems James P. Heaney, Len Wright, and David Sample  

E-Print Network [OSTI]

8-1 Chapter 8 Stormwater Storage-Treatment-Reuse Systems James P. Heaney, Len Wright, and David and Wright (1997) provide a summary of these methods. Several unresolved issues remain with regard the order of the reaction as well as the rate constant (Heaney and Wright 1997). Effect of Change of Storage

Pitt, Robert E.

135

Lens chains and the geodesic algorithm for conformal mapping Donald E. Marshall  

E-Print Network [OSTI]

Lens chains and the geodesic algorithm for conformal mapping Donald E. Marshall Abstract. We. This modification while improving the accuracy also allows us to give a simpler proof than in Marshall and Rohde [MR of conformal maps is described in Marshall and Rohde[MR]. Briefly, if z0, . . . , zn are distinct points

136

Equilibration of a warm pumped lens on a -plane. Timour Radko, John Marshall  

E-Print Network [OSTI]

Equilibration of a warm pumped lens on a -plane. Timour Radko, John Marshall Department of Earth of the baroclinic instability of a large-scale current. In a recent paper (briefly re- viewed in Sec. 2) Marshall et to the -plane. A fundamental differ- ence between Marshall's et al. (2002) study and the present one is that now

Marshall, John

137

Folding, stability and aggregation of the long-lived eye lens protein human gamma D crystallin  

E-Print Network [OSTI]

Human [gamma]D crystallin (H[gamma]D-Crys) is a monomeric, two domain, primarily P-sheet protein found in high concentrations in the human eye lens. H[gamma]D-Crys and other crystallins are found in insoluble protein ...

Flaugh, Shannon L

2006-01-01T23:59:59.000Z

138

Aerogel detector with a Fresnel lens focalization: a test of the concept  

SciTech Connect (OSTI)

We present a threshold aerogel detector that uses only the unscattered light in the aerogel, focused on a photomultiplier using a Fresnel lens. The results with n = 1.03 and 3'' photomultiplier are presented. The possibility to use 1.5'' PMT is discussed.

Sokolov, O.; Paic, G. [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico (Mexico); Alfaro, R. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico (Mexico)

2008-07-02T23:59:59.000Z

139

A Strong-Lens Survey in AEGIS: the influence of large scalestructure  

SciTech Connect (OSTI)

We report on the results of a visual search for galaxy-scale strong gravitational lenses over 650 arcmin{sup 2} of HST/ACS (F606W and F814W) imaging in the DEEP2-Extended Groth Strip (EGS). In addition to a previously-known Einstein Cross also found by our search (the 'Cross', HSTJ141735+52264, z{sub lens} = 0.8106, z{sub source} = 3.40), we identify two new strong galaxy-galaxy lenses with multiple extended arcs. The first, HSTJ141820+52361 (the 'Dewdrop'; z{sub lens} = 0.5798), lenses two distinct extended sources into two pairs of arcs (z{sub source} = 0.9818), while the second, HSTJ141833+52435 (the 'Anchor'; z{sub lens} = 0.4625), produces a single pair of arcs (z{sub lens} not yet known). Four less convincing arc/counter-arc and two-image lens candidates are also found and presented for completeness. Lenses are found in a both underdense and overdense local environments, as characterized by a robust measure, 1+{delta}{sub 3}, a normalized density that uses the distance to the third nearest neighbor. All three definite lenses are fit reasonably well by simple singular isothermal ellipsoid models including external shear, giving {chi}{sub {nu}}{sup 2} values close to unity. These shears are much greater than those implied by a simple consideration of the three-dimensional convergence and shear from galaxies along the line of sight, where each galaxy is approximated by a singular isothermal sphere halo truncated at 200 h{sup -1} kpc. This shows how a realistic treatment of galaxies and the large scale structure they are embedded in is necessary, and that simply characterizing the very-local environment may be insufficient.

Moustakas, Leonidas A.; Marshall, Phil; Newman, Jeffrey A.; Coil,Alison L.; Cooper, Michael C.; Davis, Marc; Fassnacht, Christopher D.; Guhathakurta, Puragra; Hopkins, Andrew; Koekemoer, Anton; Konidaris,Nicholas P.; Lotz, Jennifer M.; Willmer, Christopher N. A.

2006-10-13T23:59:59.000Z

140

A Strong-Lens Survey in AEGIS: the Influence of Large Scale Structure  

SciTech Connect (OSTI)

We report on the results of a visual search for galaxy-scale strong gravitational lenses over 650 arcmin2 of HST/ACS imaging in the Extended Groth Strip (EGS). These deep F606W- and F814W-band observations are in the DEEP2-EGS field. In addition to a previously-known Einstein Cross also found by our search (the ''Cross'', HSTJ141735+52264, with z{sub lens} = 0.8106 and a published z{sub source} = 3.40), we identify two new strong galaxy-galaxy lenses with multiple extended arcs. The first, HSTJ141820+52361 (the ''Dewdrop''; z{sub lens} = 0.5798), lenses two distinct extended sources into two pairs of arcs (z{sub source} = 0.9818 by nebular [O{sub II}] emission), while the second, HSTJ141833+52435 (the ''Anchor''; z{sub lens} = 0.4625), produces a single pair of arcs (source redshift not yet known). Four less convincing arc/counter-arc and two-image lens candidates are also found and presented for completeness. All three definite lenses are fit reasonably well by simple singular isothermal ellipsoid models including external shear, giving {chi}{sub {nu}}{sup 2}values close to unity. Using the three-dimensional line-of-sight (LOS) information on galaxies from the DEEP2 data, we calculate the convergence and shear contributions {kappa}{sub los} and {gamma}{sub los} to each lens, assuming singular isothermal sphere halos truncated at 200 h{sup -1} kpc. These are compared against a robust measure of local environment, {delta}{sub 3}, a normalized density that uses the distance to the third nearest neighbor. We find that even strong lenses in demonstrably underdense local environments may be considerably affected by LOS contributions, which in turn, under the adopted assumptions, may be underestimates of the effect of large scale structure.

Moustakas, Leonidas A.; /Caltech, JPL; Marshall, Phil J.; /KIPAC, Menlo Park; Newman, Jeffrey A.; /LBL, Berkeley /NOAO, Tucson; Coil, Alison L.; /Arizona U., Astron. Dept. -; Cooper, Michael C.; Davis, Marc; /UC, Berkeley, Astron. Dept.; Fassnacht, Christopher D.; /UC, Davis; Guhathakurta, Puragra; /Lick Observ.; Hopkins, Andrew; /Sydney; Koekemoer, Anton; /Baltimore, Space Telescope Sci.; Konidaris, Nicholas P.; /Lick Observ.; Lotz, Jennifer M.; /NOAO, Tucson; Willmer, Christopher N.A.; /Arizona U., Astron. Dept. -

2006-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Characterization of an aerodynamic lens for transmitting particles greater than 1 micrometer in diameter into the Aerodyne aerosol mass spectrometer  

E-Print Network [OSTI]

We have designed and characterized a new inlet and aerodynamic lens for the Aerodyne aerosol mass spectrometer (AMS) that transmits particles between 80 nm and more than 3 ?m in vacuum aerodynamic diameter. The design of ...

Williams, L. R.

142

STTI, Beta Eta-at-Large Chapter Invites You to Join Us! Social Justice: Through the Nursing Lens  

E-Print Network [OSTI]

STTI, Beta Eta-at-Large Chapter Invites You to Join Us! Social Justice: Through the Nursing Lens payable to: Beta Eta-at-Large Chapter Mail to: Colleen Gullickson, Associate Dean Henry Predolin School

Sheridan, Jennifer

143

Non-Invasive Early Detection and Molecular Analysis of Low X-ray Dose Effects in the Lens  

SciTech Connect (OSTI)

This is the Final Progress Report for DOE-funded research project DE-PS02-08ER08-01 titled “Non-Invasive Early Detection and Molecular Analysis of Low X-ray Dose Effects in the Lens”. The project focuses on the effects of low-linear energy transfer (LET) radiation on the ocular lens. The lens is an exquisitely radiosensitive tissue with a highly-ordered molecular structure that is amenable to non-invasive optical study from the periphery. These merits point to the lens as an ideal target for laser-based molecular biodosimetry (MBD). Following exposure to different types of ionizing radiations, the lens demonstrates molecular changes (e.g., oxidation, racemization, crosslinkage, truncation, aggregation, etc.) that impact the structure and function of the long-lived proteins in the cytosol of lens fiber cells. The vast majority of proteins in the lens comprise the highly-ordered crystallins. These highly conserved lens proteins are amongst the most concentrated and stable in the body. Once synthesized, the crystallins are retained in the fiber cell cytoplasm for life. Taken together, these properties point to the lens as an ideal system for quantitative in vivo MBD assessment using quasi-elastic light scattering (QLS) analysis. In this project, we deploy a purpose-designed non-invasive infrared laser QLS instrument as a quantitative tool for longitudinal assessment of pre-cataractous molecular changes in the lenses of living mice exposed to low-dose low-LET radiation compared to non-irradiated sham controls. We hypothesize that radiation exposure will induce dose-dependent changes in the molecular structure of matrix proteins in the lens. Mechanistic assays to ascertain radiation-induced molecular changes in the lens focus on protein aggregation and gene/protein expression patterns. We anticipate that this study will contribute to our understanding of early molecular changes associated with radiation-induced tissue pathology. This study also affords potential for translational development of molecular biodosimetry instrumentation to assess human exposure to mixed radiation fields.

Goldstein, Lee [Boston University] [Boston University

2014-07-02T23:59:59.000Z

144

Constraints on H_0 from the Central Velocity Dispersions of Lens Galaxies  

E-Print Network [OSTI]

We employ Schwarzschild's method of orbit modeling to constrain the mass profiles of the central lens galaxies in Q0957+561 and PG 1115+080. We combine the measured central projected stellar velocity dispersions of these galaxies with the self-similar radial profiles of the rms velocity and of the Gauss-Hermite moment h_4 observed in nearby galaxies for 0 < R < 2 R_eff. For Q0957+561, we find a 16% uncertainty in the galaxy mass, and formal 2-sigma limits on the Hubble constant of H_0 = (61 +13/-15) km/s/Mpc. For PG 1115+080, we find that none of the viable lens models can be ruled out, so that H_0 is not yet strongly constrained by this system.

Aaron J. Romanowsky; Christopher S. Kochanek

1998-11-21T23:59:59.000Z

145

Operation conditions for a picosecond laser with an aberration thermal lens under longitudinal pulsed diode pumping  

SciTech Connect (OSTI)

The dependence of the repetition frequency range that provides stable operation of a picosecond laser with longitudinal pulsed diode pumping on the parameters of the laser cavity and the thermal lens induced in the active element is analysed. The results of calculating the radius of the lower cavity mode as a function of pump beam average power and diameter are reported. Based on the measurements by the probe-beam method, the adequacy of the presented model of aberration thermal lens is demonstrated for the cases of uniformly doped Nd:YAG and composite YAG/Nd:YAG active elements upon tuning the pump pulse repetition frequency within the range of 0 - 1 kHz. The ways for implementing stable generation of millijoule pulses in a specified repetition frequency range are discussed. (control of laser radiation parameters)

Morozov, V B; Olenin, A N; Tunkin, V G; Yakovlev, D V

2011-06-30T23:59:59.000Z

146

Demonstration of electron beam focusing by a laser-plasma lens  

E-Print Network [OSTI]

Laser-plasma technology promises a drastic reduction of the size of high energy electron accelerators. It could make free electron lasers available to a broad scientific community, and push further the limits of electron accelerators for high energy physics. Furthermore the unique femtosecond nature of the source makes it a promising tool for the study of ultra-fast phenomena. However, applications are hindered by the lack of suitable lens to transport this kind of high-current electron beams, mainly due to their divergence. Here we show that this issue can be solved by using a laser-plasma lens, in which the field gradients are five order of magnitude larger than in conventional optics. We demonstrate a reduction of the divergence by nearly a factor of three, which should allow for an efficient coupling of the beam with a conventional beam transport line.

Thaury, Cédric; Döpp, Andreas; Lehe, Remi; Lifschitz, Agustin; Phuoc, Kim Ta; Gautier, Julien; Goddet, Jean-Philippe; Tafzi, Amar; Flacco, Alessandro; Tissandier, Fabien; Sebban, Stéphane; Rousse, Antoine; Malka, Victor

2014-01-01T23:59:59.000Z

147

Electron beam melting at high pressures with a vacuum separator/plasma lens  

SciTech Connect (OSTI)

Plasmas can be used to provide a vacuum-atmosphere interface or separation between vacua regions as an alternative to differential pumping. Vacuum-atmosphere interface utilizing a cascade arc discharge was successfully propagated from vacuum through such a plasma interface and out into atmospheric pressure. This plasma device also functions as an effective plasma lens. Such a device can be adopted for use in electron beam melting.

Hershcovitch, A. [Brookhaven National Laboratory, Upton, NY (United States)

1995-12-31T23:59:59.000Z

148

Chandra Observations of the QSO Pair Q2345+007: Binary Quasar or Massive Dark Lens?  

E-Print Network [OSTI]

The components of the wide (7.3") separation quasar pair Q2345+007A,B (z=2.15) have the most strikingly similar optical spectra seen to date (Steidel & Sargent 1991) yet no detected lensing mass, making this system the best candidate known for a massive (1e14 Msun) dark matter lens system. Here we present results from a 65ksec Chandra observation designed to investigate whether it is a binary quasar or a gravitational lens. We find no X-ray evidence for a lensing cluster to a (0.5-2keV) flux limit of 2e-15 cgs, which is consistent with lensing only for a reduced baryon fraction. Using the Chandra X-ray observations of the quasars themselves, together with new and published optical measurements, we use the observed emission properties of the quasars for further tests between the lens and binary hypotheses. Assuming similar line-of-sight absorption to the images, we find that their X-ray continuum slopes are inconsistent (Gamma_A=2.30 and Gamma_B=0.83) as are their X-ray to optical flux ratios. The probability that B suffers absorption sufficient to account for these spectral differences is negligible. We present new optical evidence that the flux ratio of the pair is variable, so the time-delay in a lens scenario could cause some of the discrepancies. However, adequately large variations in overall spectral energy distribution are rare in individual QSOs. All new evidence here weighs strongly toward the binary interpretation. Q2345+007 thus may represent the highest redshift example known of interaction-triggered but as-yet unmerged luminous AGN.

Paul J. Green; Chris Kochanek; Aneta Siemiginowska; Dong-Woo Kim; Maxim Markevitch; John Silverman; Anil Dosaj; Buell T. Jannuzi; Chris Smith

2002-02-04T23:59:59.000Z

149

FEA Analysis of AP-0 Target Hall Collection Lens (Current Design)  

SciTech Connect (OSTI)

The AP-0 Target Hall Collection Lens is a pulsed device which focuses anti-protons just downstream of the Target. Since the angles at which the anti-protons depart the Target can be quite large, a very high focusing strength is required to maximize anti-proton capture into the downstream Debuncher Ring. The current design of the Collection Lens was designed to operate with a focusing gradient of 1,000 T/m. However, multiple failures of early devices resulted in lowering the normal operating gradient to about 750 T/m. At this gradient, the Lens design fares much better, lasting several million pulses, but ultimately still fails. A Finite Element Analysis (FEA) has been performed on this Collection Lens design to help determine the cause and/or nature of the failures. The Collection Lens magnetic field is created by passing high current through a central conductor cylinder. A uniform current distribution through the cylinder will create a tangential or azimuthal magnetic field that varies linearly from zero at the center of the cylinder to a maximum at the outer surface of the cylinder. Anti-proton particles passing through this cylinder (along the longitudinal direction) will see an inward focusing kick back toward the center of the cylinder proportional to the magnetic field strength. For the current Lens design a gradient of 1,000 T/m requires a current of about 580,000 amps. Since the DC power and cooling requirements would be prohibitive, the Lens is operated in a pulsed mode. Each pulse is half sine wave in shape with a pulse duration of about 350 microseconds. Because of the skin effect, the most uniform current density actually occurs about two-thirds of the way through the pulse. This means that the maximum current of the pulse is actually higher than that required in the DC case (about 670,000 amps). Since the beam must pass through the central conductor cylinder it must be made of a conducting material that is also very 'transparent' to the beam. For the Collection Lens, this material is lithium (Li). The central conductor cylinder is a lithium cylinder 1 cm in radius and about 14 cm long. Figure 1 shows this cylinder in a cross-section view of the Collection Lens. Surrounding the central cylinder is a jacket of titanium alloy (6Al-4V ELI) called the septum. The septum's purpose is to contain the lithium against various thermal and magnetic forces while allowing cooling (melting point of Li is 180.5 C) by an annular water passage. The ends of the Li cylinder are bound by end windows made of beryllium (Be) and a thin titanium (ti) foil. The foil protects the Be from the corrosive effects of Li and the Be window provides the structural support. The two end windows sit in pockets in the ends of two larger steel cylinders or body halves. The body halves are separated from each other by ceramic spacers. The body halves, septum and end windows are connected to each other by nickel (Ni) seals which preserve the boundary of the lithium conductor. Force required to make these seals is provided by eight Ti 6Al-4V ELI tie rods which traverse the entire assembly. These tie rods also resist magnetic forces that attempt to separate the body halves during the current pulse. There are several insulating components that are used to isolate one side of the lens from the other and force the current through the central Li conductor. The volumes of Li at each end of the central conductor cylinder outside the septum but inside the body halves are called buffer volumes. These buffer volumes serve two roles. One, they provide a low resistance current path to the end of the central conductor cylinder. Two, they provide a volume for Li to expand into during the current pulse. For the latter it is assumed that magnetic forces and thermal strains will force lithium from the central cylinder and into the buffer volumes during the current pulse. There are several loads on the Lens that are developed during a current pulse. High magnetic loads act radially and longitudinally outward on the steel body halves and radially inward on the central

Hurh, P.G.; Tang, Z.

2001-06-22T23:59:59.000Z

150

HIGH-CURRENT COLD CATHODE FIELD EMISSION ARRAY FOR ELECTRON LENS APPLICATION  

SciTech Connect (OSTI)

During Phase I, the following goals were achieved: (1) design and fabrication of a novel, nano-dimensional CNT field emitter assembly for high current density application, with high durability; (2) fabrication of a ceramic based micro channel plate (MCP) and characterization of its secondary electron emission; and (3) characterizing the CNT/MCP cathode for high field emission and durability. As a result of these achievements, a relatively high current density of ~ 1.2 A/cm2 from a CNT cathode and single channel MCP were measured. The emission current was also extremely stable with a peak-to-peak variation of only 1.8%. The emission current could be further enhanced to meet requirements for electron lens applications by increasing the number of MCP channels. A calculation for maximum possible current density with a 1200 channel/cm2 MCP, placed over a cathode with 1200 uniformly functioning CNTs, would be ~1.46 kA/cm2, neglecting space charge limitations. Clearly this level of emission is far greater than what is needed for the electron lens application, but it does offer a highly comforting margin to account for sub-standard emitters and/or to allow the lesser challenge of building a cathode with fewer channels/cm2. A satisfactory goal for the electron lens application would be a controllable emission of 2-4 mA per channel in an ensemble of 800-1200 uniformly-functioning channels/cm2, and a cathode with overall area of about 1 cm2.

Hirshfield, Jay L

2012-12-28T23:59:59.000Z

151

Gravitational lens optical scalars in terms of energy-momentum distributions  

E-Print Network [OSTI]

This is a general work on gravitational lensing. We present new expressions for the optical scalars and the deflection angle in terms of the energy-momentum tensor components of matter distributions. Our work generalizes standard references in the literature where normally stringent assumptions are made on the sources. The new expressions are manifestly gauge invariant, since they are presented in terms of curvature components. We also present a method of approximation for solving the lens equations, that can be applied to any order.

Emanuel Gallo; Osvaldo M. Moreschi

2011-05-09T23:59:59.000Z

152

Demonstration of 12 nm resolution Fresnel zone plate lens based soft x-ray microscopy  

SciTech Connect (OSTI)

To extend soft x-ray microscopy to a resolution of order 10 nm or better, we developed a new nanofabrication process for Fresnel zone plate lenses. The new process, based on the double patterning technique, has enabled us to fabricate high quality gold zone plates with 12 nm outer zones. Testing of the zone plate with the full-field transmission x-ray microscope, XM-1, in Berkeley, showed that the lens clearly resolved 12 nm lines and spaces. This result represents a significant step towards 10 nm resolution and beyond.

Chao, W.; Kim, J.; Rekawa, S.; Fischer, P.; Anderson, E. H.

2009-06-05T23:59:59.000Z

153

Dual-frequency terahertz emission from splitting filaments induced by lens tilting in air  

SciTech Connect (OSTI)

Dual-frequency terahertz radiation from air-plasma filaments produced with two-color lasers in air has been demonstrated experimentally. When a focusing lens is tilted for a few degrees, it is shown that the laser filament evolves from a single one to two sub-filaments. Two independent terahertz sources emitted from the sub-filaments with different frequencies and polarizations are identified, where the frequency of terahertz waves from the trailing sub-filament is higher than that from the leading sub-filament.

Zhang, Zhelin; Chen, Yanping, E-mail: yanping.chen@sjtu.edu.cn; Yang, Liu; Yuan, Xiaohui; Liu, Feng; Chen, Min; Xu, Jianqiu; Zhang, Jie [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Sheng, Zhengming [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG (United Kingdom)

2014-09-08T23:59:59.000Z

154

Free-free absorption in the gravitational lens JVAS B0218+357  

E-Print Network [OSTI]

We address the issue of anomalous image flux ratios seen in the double-image gravitational lens JVAS B0218+357. From the multi-frequency observations presented in a recent study (Mittal et al. 2006) and several previous observations made by other authors, the anomaly is well-established in that the image flux-density ratio (A/B) decreases from 3.9 to 2.0 over the observed frequency range from 15 GHz to 1.65 GHz. In Mittal et al. (2006), the authors investigated whether an interplay between a frequency-dependent structure of the background radio-source and a gradient in the relative image-magnification can explain away the anomaly. Insufficient shifts in the image centroids with frequency led them to discard the above effect as the cause of the anomaly. In this paper, we first take this analysis further by evaluating the combined effect of the background source extension and magnification gradients in the lens plane in more detail. This is done by making a direct use of the observed VLBI flux-distributions for each image to estimate the image flux-density ratios at different frequencies from a lens-model. As a result of this investigation, this mechanism does not account for the anomaly. Following this, we analyze the effects of mechanisms which are non-gravitational in nature on the image flux ratios in B0218+357. These are free-free absorption and scattering, and are assumed to occur under the hypothesis of a molecular cloud residing in the lens galaxy along the line-of-sight to image A. We show that free-free absorption due to an H II region covering the entire structure of image A at 1.65 GHz can explain the image flux ratio anomaly. We also discuss whether H II regions with physical parameters as derived from our analysis are consistent with those observed in Galactic and extragalactic H II regions.

Rupal Mittal; Richard Porcas; Olaf Wucknitz

2006-07-27T23:59:59.000Z

155

All-dielectric three-dimensional broadband Eaton lens with large refractive index range  

SciTech Connect (OSTI)

We proposed a method to realize three-dimensional (3D) gradient index (GRIN) devices requiring large refractive index (RI) range with broadband performance. By combining non-resonant GRIN woodpile photonic crystals structure in the metamaterial regime with a compound liquid medium, a wide RI range (1–6.32) was fulfilled flexibly. As a proof-of-principle for the low-loss and non-dispersive method, a 3D Eaton lens was designed and fabricated based on 3D printing process. Full-wave simulation and experiment validated its omnidirectional wave bending effects in a broad bandwidth covering Ku band (12?GHz–18?GHz)

Yin, Ming; Yong Tian, Xiao, E-mail: leoxyt@mail.xjtu.edu.cn; Ling Wu, Ling; Chen Li, Di [State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)

2014-03-03T23:59:59.000Z

156

FIA-14-0082 - In the Matter of Len Latkovski | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomentheATLANTA, GA5 &of Energy memoCity ofAugust 31,AprilJune 24, 2014,Len

157

Eye lens membrane junctional microdomains: a comparison between healthy and pathological This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network [OSTI]

of tightly packed fiber cells. To maintain homeostasis and transparency of the lens, the circulation of water-II cataract cases and novel data of the lens membranes from a congenital cataract. In the healthy case, AQP0s of the microcirculation system. In the congenital cataract, connexons are present, indicating probable non

Sens, Pierre

158

Self-organized Nano-lens Arrays by Intensified Dewetting of Electron Beam Modified Polymer Thin-films  

E-Print Network [OSTI]

Sub-100 nm polymeric spherical plano-convex nano-lens arrays are fabricated using short electron beam exposures to selectively modify the ultrathin (nano-lenses. The intensified self-organized dewetting under a water-organic solvent mixture overcomes the limitations on surface tension and dewetting force and thus facilitates the formation of sub-100 nm diameter polymer nanolenses of tunable curvature. By varying the extent of e-beam exposure, various configurations from isolated to connected nano-lens arrays can be fabricated.

Ankur Verma; Ashutosh Sharma

2011-09-18T23:59:59.000Z

159

Using Optical and Near-IR Photometry to Test MACHO Lens Candidates  

E-Print Network [OSTI]

We obtained new VLT/ISAAC H-band observations for five MACHO LMC source stars and adjacent LMC field regions. After combining our near-IR photometry with HST/PC BVRI optical photometry, we compared the MACHO objects to the adjacent field stars in a variety of color-magnitude and color-color diagrams. These diagnostic diagrams were chosen to be sensitive to our hypothesis that at least some of the MACHO lenses were foreground Galactic disk or thick disk M dwarfs. For the five lensed objects we studied, our hypothesis could be ruled out for main sequence lens masses >= 0.1 Mo for distances out to 4 kpc. On the other hand, the fact that LMC-MACHO-5, an object not in our study, has been recently found to have just such a foreground lens, highlights that the remainder of the LMC MACHO objects should be searched for the signature of their lenses using our photometric technique, or via near-IR spectroscopy. We also constructed diagnostic color-color diagrams sensitive to determining reddening for the individual MACHO source stars and found that these five objects did not show evidence for significant additional reddening. At least these five MACHO objects are thus also inconsistent with the LMC self-lensing hypothesis.

Ted von Hippel; Ata Sarajedini; Maria Teresa Ruiz

2003-07-24T23:59:59.000Z

160

An alternative parameterisation for binary-lens caustic-crossing events  

E-Print Network [OSTI]

Microlensing events are being discovered and alerted by the two survey teams OGLE and MOA at an increasing rate. Around ten percent of these events involve binary lenses. Such events potentially contain much information on the physical properties of the observed binary systems, which can then be used for e.g. statistical studies on binary objects in the Galactic disk or bulge. However, such events are usually not straightforward to study, because the model equations are strongly non-linear and there are many local minima that can fool the search for the best solution if the parameter space is not inspected with great care. In this work an alternative parameterisation for the binary lens fitting problem is proposed, in which the parameters involved are defined to represent as closely as possible the caustic-crossing features observed in most binary lens light curves. Furthermore, we work out an extension of the method in order to make use of the straight line fold caustic approximation, when the latter applies for both the caustic entry and exit. We introduce an alternative parameterisation in order to confine the exploration of the parameter space to regions where the models only involve caustic crossing at the dates seen in the light curve. We find that the proposed parameterisation provides more robustness to the light curve fitting process, in particular in avoiding a code to get stuck in false minima.

A. Cassan

2008-10-15T23:59:59.000Z

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161

The Sloan Digital Sky Survey Quasar Lens Search. III Constraints on Dark Energy From The Third Data Release Quasar Lens Catalog  

SciTech Connect (OSTI)

We present cosmological results from the statistics of lensed quasars in the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. By taking proper account of the selection function, we compute the expected number of quasars lensed by early-type galaxies and their image separation distribution assuming a flat universe, which is then compared with 7 lenses found in the SDSS Data Release 3 to derive constraints on dark energy under strictly controlled criteria. For a cosmological constant model (w = -1) we obtain {Omega}{sub {Lambda}} = 0.74{sub -0.15}{sup +0.11}(stat.){sub -0.06}{sup +0.13}(syst.). Allowing w to be a free parameter we find {Omega}{sub M} = 0.26{sub -0.06}{sup +0.07}(stat.){sub -0.05}{sup +0.03}(syst.) and w = -1.1 {+-} 0.6(stat.){sub -0.5}{sup +0.3}(syst.) when combined with the constraint from the measurement of baryon acoustic oscillations in the SDSS luminous red galaxy sample. Our results are in good agreement with earlier lensing constraints obtained using radio lenses, and provide additional confirmation of the presence of dark energy consistent with a cosmological constant, derived independently of type Ia supernovae.

Oguri, M; Inada, N; Strauss, M A; Kochanek, C S; Richards, G T; Schneider, D P; Becker, R H; Fukugita, M; Gregg, M D; Hall, P B; Hennawi, J F; Johnston, D E; Kayo, I; Keeton, C R; Pindor, B; Shin, M; Turner, E; White, R L; York, D G; Anderson, S F; Bahcall, N A; Brunner, R J; Burles, S; Castander, F J; Chiu, K; Clocchiatti, A; Einsenstein, D; Frieman, J; Kawano, Y; Lupton, R; Morokuma, T; Rix, H; Scranton, R; Sheldon, E S

2007-09-12T23:59:59.000Z

162

Figure 1: Artificially colored image of the plasma produced with a cylindrical lens. The laser travels in the Z-  

E-Print Network [OSTI]

-dimension to form a long focus. Progress on Plasma Lens Experiments at the Final Focus Test Beam* P. Kwok2, P. Chen of the supersonic gas jet as the plasma source, and study on focused beam size measurement techniques. Most demonstrate plasma focusing in a setting close to the true high energy collider with negligible induced

McDonald, Kirk

163

BP: Beyond Petroleum? Published by GlobaLens, a division of the William Davidson Institute at the University of Michigan.  

E-Print Network [OSTI]

BP: Beyond Petroleum? Published by GlobaLens, a division of the William Davidson Institute of British Petroleum (BP). Prior to assuming the position of CEO, Dudley had been in charge of BP's oil spill and production of crude petroleum and the mining and Source: National Oceanic and Atmospheric Administration

Edwards, Paul N.

164

PHYSICAL REVIEW E 84, 041402 (2011) Ice-lens formation and geometrical supercooling in soils and other colloidal materials  

E-Print Network [OSTI]

in the prediction of macroscopic frost-heave rates. DOI: 10.1103/PhysRevE.84.041402 PACS number(s): 82.70.Dd, 46PHYSICAL REVIEW E 84, 041402 (2011) Ice-lens formation and geometrical supercooling in soils, Department of Physics and Program in Applied Mathematics, Yale University, New Haven, Connecticut, USA

Wettlaufer, John S.

165

15 GHz Monitoring of the Gravitational Lens MG 0414+0534  

E-Print Network [OSTI]

We report the results of monitoring the four images of the gravitational lens MG 0414+0534 at 15 GHz. In 35 VLA maps spanning 180 days, we measure root-mean-square variations in the image light curves of ~3.5% mostly due to variations in the flux density calibration. The flux ratios, which are independent of flux density calibration variations, show root-mean-square variability of 1-3%. Extensive simulations of the data analysis process show that the observed variations in the flux ratios are likely to be due entirely to errors in the deconvolution process. It is possible that some of the observed variation is due to the source; however, the signal-to-noise ratio is too small to make a time delay determination using a data set of this size.

Christopher B. Moore; Jacqueline N. Hewitt

1997-08-08T23:59:59.000Z

166

Echelle grating multi-order imaging spectrometer utilizing a catadioptric lens  

DOE Patents [OSTI]

A cryogenically cooled imaging spectrometer that includes a spectrometer housing having a first side and a second side opposite the first side. An entrance slit is on the first side of the spectrometer housing and directs light to a cross-disperser grating. An echelle immersions grating and a catadioptric lens are positioned in the housing to receive the light. A cryogenically cooled detector is located in the housing on the second side of the spectrometer housing. Light from the entrance slit is directed to the cross-disperser grating. The light is directed from the cross-disperser grating to the echelle immersions grating. The light is directed from the echelle immersions grating to the cryogenically cooled detector on the second side of the spectrometer housing.

Chrisp, Michael P; Bowers, Joel M

2014-05-27T23:59:59.000Z

167

DEVELOPMENT OF A COMPACT PHOTO-INJECTOR WITH RFFOCUSING LENS FOR SHORT PULSE ELECTRON SOURCE APPLICATION  

SciTech Connect (OSTI)

For development of compact ultrafast electron source system, we are currently designing a short-pulse RF-gun with RF focusing structure by means of a series of comprehensive modeling analysis processes. EM design of a 2.5 cell resonant cavity with input coupler, acceleration dynamics of photo-emitted electron bunch, EM design of RF-lens with input coupler, and phasespace analysis of focused electron bunch are systematically examined with multi-physics simulators. All the features of the 2.856 GHz cavity geometry were precisely engineered for acceleration energies ranging from 100 keV to 500 keV (safety limited) to be powered by our 5 MW S-band klystron. The klystron (Thales TH2163) and modulator system (ScandiNova K1 turnkey system) were successfully installed and tested. Performance tests of the klystron system show peak output power > 5 MW, as per operation specifications. At the quasi-relativistic energies, the electron source is capable of generating 100fC – 1 pC electron bunch with pulse duration close to 30 fs – 1 ps and transverse size of a few hundred microns. PIC simulations have shown that the electron bunch undergoes fast RF acceleration, rapidly reaching the desired energies, which can be controlled by tuning RF injection phase and input driving power. It has been shown that it is possible to also focus/compress the bunch longitudinally using a RF-lens, which would allow us to control the temporal resolution of the system as well. While our primary analysis has been performed on a 2.5 cell design, we are also looking into half-cell (single cavity) design that is expected to provide the same range of beam energy with a simple configuration.

Grabenhofer, Alexander [Northern Illinois University; Eaton, Douglas W. [ScandiNova systems AB, Uppsala, Sweden

2013-09-01T23:59:59.000Z

168

Irrigation and fertilization effects on Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) Damage levels and pupal weight in an intensively-managed pine plantation.  

SciTech Connect (OSTI)

The widespread application of intensive forest management practices throughout the southeastern U.S. has increased loblolly pine, Pinus taeda L., yields and shortened conventional rotation lengths. Fluctuations in Nantucket pine tip moth, Rhyacionia frustrana (Comstock), population density and subsequent damage levels have been linked to variations in management intensity. We examined the effects of two practices, irrigation and fertilization, on R. frustrana damage levels and pupal weights in an intensively-managed P. taeda plantation in South Carolina. Trees received intensive weed control and one of the following treatments; irrigation only. fertilization only, irrigation + fertilization, or control. Mean whole-tree tip moth damage levels ranged from <1 to 48% during this study. Damage levels differed significantly among treatments in two tip moth generations in 2001, but not 2000. Pupal weight was significantly heavier in fertilization compared to the irrigation treatment in 2000, but no significant differences were observed in 2001. Tree diameter. height. and aboveground volume were significantly greater in the irrigation + fertilization than in the irrigation treatment after two growing seasons. Our data suggest that intensive management practices that include irrigation and fertilization do not consistently increase R. frustrana damage levels and pupal weights as is commonly believed. However, tip moth suppression efforts in areas adjacent to our study may have partially reduced the potential impacts of R. frustrana on this experiment.

Coyle, David, R.; Nowak, John, T.; Fettig, Christopher, J.

2003-10-01T23:59:59.000Z

169

Micro-forging technique for rapid, low-cost manufacture of lens array molds and its application in a biomedical instrument  

E-Print Network [OSTI]

Interest in micro-optical components for applications ranging from telecommunications to the life sciences has driven the need for accessible, low-cost fabrication techniques. Most micro-lens fabrication processes are ...

Saez, Miguel Angel

2007-01-01T23:59:59.000Z

170

The characterization of human [gamma]D-crystallin mutants and their differential interactions with the lens chaperone [alpha]B-crystallin  

E-Print Network [OSTI]

Cataract, the leading cause of blindness worldwide, is the opacification of the eye lens. In.age-related cataract, as well as roughly one half of congenital cataract cases, aggregation or precipitation of crystallin proteins ...

Moreau, Kate L. (Kate Lauren)

2011-01-01T23:59:59.000Z

171

DISENTANGLING BARYONS AND DARK MATTER IN THE SPIRAL GRAVITATIONAL LENS B1933+503  

SciTech Connect (OSTI)

Measuring the relative mass contributions of luminous and dark matter in spiral galaxies is important for understanding their formation and evolution. The combination of a galaxy rotation curve and strong lensing is a powerful way to break the disk-halo degeneracy that is inherent in each of the methods individually. We present an analysis of the 10 image radio spiral lens B1933+503 at z{sub l} = 0.755, incorporating (1) new global very long baseline interferometry observations, (2) new adaptive-optics-assisted K-band imaging, and (3) new spectroscopic observations for the lens galaxy rotation curve and the source redshift. We construct a three-dimensionally axisymmetric mass distribution with three components: an exponential profile for the disk, a point mass for the bulge, and a Navarro-Frenk-White (NFW) profile for the halo. The mass model is simultaneously fitted to the kinematics and the lensing data. The NFW halo needs to be oblate with a flattening of a/c = 0.33{sup +0.07}{sub -0.05} to be consistent with the radio data. This suggests that baryons are effective at making the halos oblate near the center. The lensing and kinematics analysis probe the inner {approx}10 kpc of the galaxy, and we obtain a lower limit on the halo scale radius of 16 kpc (95% credible intervals). The dark matter mass fraction inside a sphere with a radius of 2.2 disk scale lengths is f{sub DM,2.2} = 0.43{sup +0.10}{sub -0.09}. The contribution of the disk to the total circular velocity at 2.2 disk scale lengths is 0.76{sup +0.05}{sub -0.06}, suggesting that the disk is marginally submaximal. The stellar mass of the disk from our modeling is log{sub 10}(M{sub *}/M{sub Sun }) = 11.06{sup +0.09}{sub -0.11} assuming that the cold gas contributes {approx}20% to the total disk mass. In comparison to the stellar masses estimated from stellar population synthesis models, the stellar initial mass function of Chabrier is preferred to that of Salpeter by a probability factor of 7.2.

Suyu, S. H.; Treu, T.; Auger, M. W. [Department of Physics, University of California, Santa Barbara, CA 93106-9530 (United States); Hensel, S. W.; Schneider, P. [Argelander-Institut fuer Astronomie, Auf dem Huegel 71, 53121 Bonn (Germany); McKean, J. P. [ASTRON, Oude Hoogeveensedijk 4, 7991 PD Dwingeloo (Netherlands); Fassnacht, C. D. [Department of Physics, University of California Davis, 1 Shields Avenue, Davis, CA 95616 (United States); Halkola, A. [Excellence Cluster Universe, Technische Universitaet Muenchen, Boltzmannstr. 2, 85748 Garching (Germany); Norbury, M. [Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Santa Barbara, CA 93117 (United States); Jackson, N. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Turing Building, Oxford Road, Manchester M13 9PL (United Kingdom); Thompson, D. [Large Binocular Telescope Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Koopmans, L. V. E. [Kapteyn Astronomical Institute, P.O. Box 800, 9700 AV Groningen (Netherlands); Matthews, K., E-mail: suyu@physics.ucsb.edu [Caltech Optical Observatories, California Institute of Technology, Pasadena, CA 91125 (United States)

2012-05-01T23:59:59.000Z

172

NORTHWEST RUSSIA AS A LENS FOR CHANGE IN THE RUSSIAN FEDERATION  

SciTech Connect (OSTI)

The region of Northwest Russia – encompassing the Kola Peninsula and the Arctic seas to its north – offers a lens through which to view the political, economic, ecological and cultural change occurring in the Russian Federation (RF) today. Amidst the upheaval that followed the collapse of the Soviet Union, this region was left to address the legacy of a Cold War history in which it was home to the Soviet (and now Russian) Navy’s Northern Fleet. This paper addresses the naval nuclear legacy from an ecological and environmental and perspective, first addressing the situation of radioactive contamination of the region. The focus then turns to one of the largest problems facing the RF today: the management and disposal of SNF and RW, much of which was produced by the Northern Fleet. Through the international programs to address these issues, and Russia's development of a national infrastructure to support spent nuclear fuel and waste management, the author discusses political, economic, environmental and cultural change in Russia.

Seward, Amy M.

2009-04-18T23:59:59.000Z

173

A 6 kV arbitrary waveform generator for the Tevatron Electron Lens  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

This paper reports on a 6 kV modulator built and installed at Fermilab to drive the electron gun anode for the Tevatron Electron Lens (TEL). The TEL was built with the intention of shifting the individual (anti)proton bunch tunes to even out the tune spread among all 36 bunches with the desire of improving Tevatron integrated luminosity. This modulator is essentially a 6 kV arbitrary waveform generator that enables the TEL to define the electron beam intensity on a bunch-by-bunch basis. A voltage waveform is constructed having a 7 {micro}s duration that corresponds to the tune shift requirements of a 12-bunch (anti)proton beam pulse train. This waveform is played out for any one or all three bunch trains in the Tevatron. The programmed waveform voltages transition to different levels at time intervals corresponding to the 395 ns bunch spacing. Thus, complex voltage waveforms can be played out at a sustained rate of 143 kHz over the full 6 kV output range. This paper describes the novel design of the inductive adder topology employing five transformers. It describes the design aspects that minimize switching losses for this multi-kilovolt, high repetition rate and high duty factor application.

Pfeffer, H; Saewert, G

2011-11-01T23:59:59.000Z

174

Recombinant production and solution structure of lipid transfer protein from lentil Lens culinaris  

SciTech Connect (OSTI)

Highlights: •Lipid transfer protein from lentil seeds (Lc-LTP2) was overexpressed in E. coli. •Antimicrobial activity and spatial structure of the recombinant Lc-LTP2 were examined. •Internal tunnel-like lipid-binding cavity occupies ?7% of the total Lc-LTP2 volume. •Binding of DMPG lipid induces moderate rearrangements in the Lc-LTP2 structure. •Lc-LTP2/DMPG complex has limited lifetime and dissociates within tens of hours. -- Abstract: Lipid transfer protein, designated as Lc-LTP2, was isolated from seeds of the lentil Lens culinaris. The protein has molecular mass 9282.7 Da, consists of 93 amino acid residues including 8 cysteines forming 4 disulfide bonds. Lc-LTP2 and its stable isotope labeled analogues were overexpressed in Escherichia coli and purified. Antimicrobial activity of the recombinant protein was examined, and its spatial structure was studied by NMR spectroscopy. The polypeptide chain of Lc-LTP2 forms four ?-helices (Cys4-Leu18, Pro26-Ala37, Thr42-Ala56, Thr64-Lys73) and a long C-terminal tail without regular secondary structure. Side chains of the hydrophobic residues form a relatively large internal tunnel-like lipid-binding cavity (van der Waals volume comes up to ?600 Å{sup 3}). The side-chains of Arg45, Pro79, and Tyr80 are located near an assumed mouth of the cavity. Titration with dimyristoyl phosphatidylglycerol (DMPG) revealed formation of the Lc-LTP2/lipid non-covalent complex accompanied by rearrangements in the protein spatial structure and expansion of the internal cavity. The resultant Lc-LTP2/DMPG complex demonstrates limited lifetime and dissociates within tens of hours.

Gizatullina, Albina K. [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation) [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation); Moscow Institute of Physics and Technology (State University), Department of Physicochemical Biology and Biotechnology, Institutskii per., 9, 141700, Dolgoprudny, Moscow Region (Russian Federation); Finkina, Ekaterina I.; Mineev, Konstantin S.; Melnikova, Daria N.; Bogdanov, Ivan V. [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation)] [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation); Telezhinskaya, Irina N.; Balandin, Sergey V. [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation) [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation); Moscow Institute of Physics and Technology (State University), Department of Physicochemical Biology and Biotechnology, Institutskii per., 9, 141700, Dolgoprudny, Moscow Region (Russian Federation); Shenkarev, Zakhar O. [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation)] [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation); Arseniev, Alexander S. [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation) [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation); Moscow Institute of Physics and Technology (State University), Department of Physicochemical Biology and Biotechnology, Institutskii per., 9, 141700, Dolgoprudny, Moscow Region (Russian Federation); Ovchinnikova, Tatiana V., E-mail: ovch@ibch.ru [Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya str., 16/10, 117997 Moscow (Russian Federation); Moscow Institute of Physics and Technology (State University), Department of Physicochemical Biology and Biotechnology, Institutskii per., 9, 141700, Dolgoprudny, Moscow Region (Russian Federation)

2013-10-04T23:59:59.000Z

175

Calculation of the transverse kicks generated by the bends of a hollow electron lens  

SciTech Connect (OSTI)

Electron lenses are pulsed, magnetically confined electron beams whose current-density profile is shaped to obtain the desired effect on the circulating beam in high-energy accelerators. They were used in the Fermilab Tevatron collider for abort-gap clearing, beam-beam compensation, and halo scraping. A beam-beam compensation scheme based upon electron lenses is currently being implemented in the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. This work is in support of a conceptual design of hollow electron beam scraper for the Large Hadron Collider. It also applies to the implementation of nonlinear integrable optics with electron lenses in the Integrable Optics Test Accelerator at Fermilab. We consider the axial asymmetries of the electron beam caused by the bends that are used to inject electrons into the interaction region and to extract them. A distribution of electron macroparticles is deposited on a discrete grid enclosed in a conducting pipe. The electrostatic potential and electric fields are calculated using numerical Poisson solvers. The kicks experienced by the circulating beam are estimated by integrating the electric fields over straight trajectories. These kicks are also provided in the form of interpolated analytical symplectic maps for numerical tracking simulations, which are needed to estimate the effects of the electron lens imperfections on proton lifetimes, emittance growth, and dynamic aperture. We outline a general procedure to calculate the magnitude of the transverse proton kicks, which can then be generalized, if needed, to include further refinements such as the space-charge evolution of the electron beam, magnetic fields generated by the electron current, and longitudinal proton dynamics.

Stancari, Giulio

2014-03-25T23:59:59.000Z

176

Design, assembly, and testing of a high-resolution relay lens used for holography with operation at both doubled and tripled Nd:YAG laser wavelengths  

SciTech Connect (OSTI)

The design and assembly of a nine-element lens that achieves >2000 1p/mm resolution at a 355-nm wavelength (ultraviolet) has been completed. By adding a doublet to this lens system, operation at a 532-nm wavelength (green) with > 1100 1p/mm resolution is achieved. This lens is used with high-power laser light to record holograms of fast-moving ejecta particles from a shocked metal surface located inside a test package. Part of the lens and the entire test package are under vacuum with a 1-cm air gap separation. Holograms have been recorded with both doubled and tripled Nd:YAG laser light. The UV operation is very sensitive to the package window's tilt. If this window is tilted by more than 0.1 degrees, the green operation performs with better resolution than that of the UV operation. The setup and alignment are performed with green light, but the dynamic recording can be done with either UV light or green light. A resolution plate can be temporarily placed inside the test package so that a television microscope located beyond the hologram position can archive images of resolution patterns that prove that the calibration wires., interference filter, holographic plate, and relay lenses are in their correct positions. Part of this lens is under vacuum, at the point where the laser illumination passes through a focus. Alignment and tolerancing of this high-resolution lens are presented. Resolution variation across the 12-mm field of view and throughout the 5-mm depth of field is discussed for both wavelengths.

Sorenson, Danny S [Los Alamos National Laboratory; Pazuchanics, Peter D [Los Alamos National Laboratory; Malone, Robert M [NSTEC; Cox, Brian C [NSTEC; Frogget, Brent C [NSTEC; Kaufman, Morris I [NSTEC; Capelle, Gene A [NSTEC/SB; Grover, M [NSTEC/SB; Stevens, Gerald D [NSTEC/SB; Turley, William D [NSTEC/SB

2009-01-01T23:59:59.000Z

177

High Resolution Imaging of the Anomalous Flux-Ratio Gravitational Lens System CLASS B2045+265: Dark Or Luminous Satellites?  

SciTech Connect (OSTI)

The existence of flux-ratio anomalies between fold and cusp images in galaxy-scale strong-lens systems has led to an interpretation based on the presence of a high mass-fraction of cold-dark-matter (CDM) substructures around galaxies, as predicted by numerical N-body simulations. These substructures can cause large perturbations of the image magnifications, leading to changes in the image flux ratios. The flux-ratio anomaly is particularly evident in the radio-loud quadruple gravitational lens system CLASS B2045+265. In this paper, new high-resolution radio, optical, and infrared imaging of B2045+265 is presented which sheds more light on this anomaly and its possible causes. First, deep Very Long Baseline Array observations show very compact images, possibly with a hint of a jet, but with no evidence for differential scattering or scatter broadening. Hence, the flux-ratio anomaly is unlikely to be caused by refractive scattering in either the Milky Way or the lens galaxy. Second, optical and infrared observations with the Hubble Space Telescope and through Adaptive-Optics imaging with the W. M. Keck Telescope, show a previously undiscovered object--interpreted as a (tidally disrupted) dwarf satellite based on its colors and slight extension--between the main lens galaxy and the three anomalous flux-ratio images. Third, color variations in the early-type lens galaxy indicate recent star-formation, possibly the result of secondary infall of gas-rich satellites. A population of young galaxies around the lens system could explain the previously discovered strong [O II] emission. However, spiral structure and/or normal star formation in the lens galaxy cannot be excluded. In light of these new data, we propose a lens model for the system, including the observed dwarf satellite, which reproduces all positional and flux-ratio constraints, without the need for additional CDM substructure. Although the model is peculiar in that the dwarf galaxy must be highly flattened, the model is very similar to recently proposed mass models based on high-order multipole expansions.

McKean, J.P.; Koopmans, L.V.E.; Flack, C.E.; Fassnacht, C.D.; Thompson, D.; Matthews, K.; Blandford, R.D.; Readhead, A.C.S.; Soifer, B.T.; /UC, Davis /Bonn, Max Planck

2006-11-10T23:59:59.000Z

178

The Neutron Energy Spectrum Study from the Phase II Solid Methane Moderator at the LENS Neutron Source  

E-Print Network [OSTI]

Neutron energy spectrum measurements from a solid methane moderator were performed at the Low Energy Neutron Source (LENS) at Indiana University Cyclotron Facility (IUCF) to verify our neutron scattering model of solid methane. The time-of-flight method was used to measure the energy spectrum of the moderator in the energy range of 0.1$meV\\sim$ 1$eV$. Neutrons were counted with a high efficiency $^{3}{He}$ detector. The solid methane moderator was operated in phase II temperature and the energy spectra were measured at the temperatures of 20K and 4K. We have also tested our newly-developed scattering kernels for phase II solid methane by calculating the neutron spectral intensity expected from the methane moderator at the LENS neutron source using MCNP (Monte Carlo N-particle Transport Code). Within the expected accuracy of our approximate approach, our model predicts both the neutron spectral intensity and the optimal thickness of the moderator at both temperatures. The predictions are compared to the measured energy spectra. The simulations agree with the measurement data at both temperatures.

Yunchang Shin; W. Mike Snow; Christopher M. Lavelle; David V. Baxter; Xin Tong; Haiyang Yan; Mark Leuschner

2007-11-19T23:59:59.000Z

179

Phosphor-free nanopyramid white light-emitting diodes grown on (101{sup ¯}1) planes using nanospherical-lens photolithography  

SciTech Connect (OSTI)

We reported a high-efficiency and low-cost nano-pattern method, the nanospherical-lens photolithography technique, to fabricate a SiO{sub 2} mask for selective area growth. By controlling the selective growth, we got a highly ordered hexagonal nanopyramid light emitting diodes with InGaN/GaN quantum wells grown on nanofacets, demonstrating an electrically driven phosphor-free white light emission. We found that both the quantum well width and indium incorporation increased linearly along the (101{sup ¯}1) planes towards the substrate and the perpendicular direction to the (101{sup ¯}1) planes as well. Such spatial distribution was responsible for the broadband emission. Moreover, using cathodoluminescence techniques, it was found that the blue emission originated from nanopyramid top, resembling the quantum dots, green emission from the InGaN quantum wells layer at the middle of sidewalls, and yellow emission mainly from the bottom of nanopyramid ridges, similar to the quantum wires.

Wu, Kui [State Key Laboratory of Solid-State Lighting, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China) [State Key Laboratory of Solid-State Lighting, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China); Department of Electronic Engineering, Tsinghua National Laboratory for Information Science and Technology/State Key Lab on Integrated Optoelectronics, Tsinghua University, Beijing 100084 (China); Wei, Tongbo, E-mail: tbwei@semi.ac.cn; Wei, Xuecheng; Zheng, Haiyang; Chen, Yu; Lu, Hongxi; Wang, Junxi; Li, Jinmin [State Key Laboratory of Solid-State Lighting, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China)] [State Key Laboratory of Solid-State Lighting, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China); Lan, Ding [National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080 (China)] [National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080 (China); Huang, Kai [Platform of Characterization and Test, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215000 (China)] [Platform of Characterization and Test, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215000 (China); Luo, Yi [Department of Electronic Engineering, Tsinghua National Laboratory for Information Science and Technology/State Key Lab on Integrated Optoelectronics, Tsinghua University, Beijing 100084 (China)] [Department of Electronic Engineering, Tsinghua National Laboratory for Information Science and Technology/State Key Lab on Integrated Optoelectronics, Tsinghua University, Beijing 100084 (China)

2013-12-09T23:59:59.000Z

180

Dissecting the Gravitational Lens B1608 656. II. Precision Measurements of the Hubble Constant, Spatial Curvature, and the Dark Energy Equation of State  

SciTech Connect (OSTI)

Strong gravitational lens systems with measured time delays between the multiple images provide a method for measuring the 'time-delay distance' to the lens, and thus the Hubble constant. We present a Bayesian analysis of the strong gravitational lens system B1608+656, incorporating (1) new, deep Hubble Space Telescope (HST) observations, (2) a new velocity dispersion measurement of 260 {+-} 15 km s{sup -1} for the primary lens galaxy, and (3) an updated study of the lens environment. Our analysis of the HST images takes into account the extended source surface brightness, and the dust extinction and optical emission by the interacting lens galaxies. When modeling the stellar dynamics of the primary lens galaxy, the lensing effect, and the environment of the lens, we explicitly include the total mass distribution profile logarithmic slope {gamma}{prime} and the external convergence {kappa}{sub ext}; we marginalize over these parameters, assigning well-motivated priors for them, and so turn the major systematic errors into statistical ones. The HST images provide one such prior, constraining the lens mass density profile logarithmic slope to be {gamma}{prime} = 2.08 {+-} 0.03; a combination of numerical simulations and photometric observations of the B1608+656 field provides an estimate of the prior for {kappa}{sub ext}: 0.10{sub -0.05}{sup +0.08}. This latter distribution dominates the final uncertainty on H{sub 0}. Fixing the cosmological parameters at {Omega}{sub m} = 0.3, {Omega}{sub {Lambda}} = 0.7, and w = -1 in order to compare with previous work on this system, we find H{sub 0} = 70.6{sub -3.1}{sup +3.1} km s{sup -1} Mpc{sup -1}. The new data provide an increase in precision of more than a factor of two, even including the marginalization over {kappa}{sub ext}. Relaxing the prior probability density function for the cosmological parameters to that derived from the WMAP 5-year data set, we find that the B1608+656 data set breaks the degeneracy between {Omega}{sub m} and {Omega}{sub {Lambda}} at w = -1 and constrains the curvature parameter to be -0.031 < {Omega}{sub k} < 0.009 (95% CL), a level of precision comparable to that afforded by the current Type Ia SNe sample. Asserting a flat spatial geometry, we find that, in combination with WMAP, H{sub 0} = 69.7{sub 5.0}{sup +4.9} km s{sup -1} Mpc{sup -1} and w = -0.94{sub -0.19}{sup +0.17} (68% CL), suggesting that the observations of B1608+656 constrain w as tightly as do the current Baryon Acoustic Oscillation data.

Suyu, S.H.; /Argelander Inst. Astron.; Marshall, P.J.; /KIPAC, Menlo Park /UC, Santa Barbara; Auger, M.W.; /UC, Santa Barbara /UC, Davis; Hilbert, S.; /Argelander Inst. Astron. /Garching, Max Planck Inst.; Blandford, R.D.; /KIPAC, Menlo Park; Koopmans, L.V.E.; /Kapteyn Astron. Inst., Groningen; Fassnacht, C.D.; /UC, Davis; Treu, T.; /UC, Santa Barbara

2009-12-11T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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181

Microsoft Word - FIA-12-0062.docx  

Broader source: Energy.gov (indexed) [DOE]

26, 2012, by the Office of Information Resources (OIR) of the Department of Energy (DOE) (Request No. HQ-2010-00739-F). In that determination, OIR released documents...

182

Progress on Plasma Lens Experiments at the Final Focus Test Beam* P. Kwok*, P. Chen13,D. Cline2,7N.Barletta4, S. Berridge14,W. Bugg14,C. Bula'O, S. Chatt~padhyay~,W. Craddock13,  

E-Print Network [OSTI]

Progress on Plasma Lens Experiments at the Final Focus Test Beam* P. Kwok*, P. Chen13,D. Cline2,7N. Abstract The proposal to perform a series of plasma lens experiments at the Final Focus Test Beam at SLAC as the plasma source, and study on focused beam size measurement techniques. Most importantly, the effects

McDonald, Kirk

183

Negative Index Lens Aberrations  

E-Print Network [OSTI]

We examine the Seidel aberrations of thin spherical lenses composed of media with refractive index not restricted to be positive. We find that consideration of this expanded parameter space allows reduction or elimination of more aberrations than is possible with only positive index media. In particular we find that spherical lenses possessing real aplanatic focal points are possible only with negative index. We perform ray tracing, using custom code that relies only on Maxwell's equations and conservation of energy, that confirms the results of the aberration calculations.

Schurig, D

2004-01-01T23:59:59.000Z

184

A graphene electron lens  

SciTech Connect (OSTI)

An epitaxial layer of graphene was grown on a pre patterned 6H-SiC(0001) crystal. The graphene smoothly covers the hexagonal nano-holes in the substrate without the introduction of small angle grain boundaries or dislocations. This is achieved by an elastic deformation of the graphene by {approx_equal}0.3% in accordance to its large elastic strain limit. This elastic stretching of the graphene leads to a modification of the band structure and to a local lowering of the electron group velocity of the graphene. We propose to use this effect to focus two-dimensional electrons in analogy to simple optical lenses.

Gerhard, L.; Balashov, T.; Wulfhekel, W. [Physikalisches Institut, Karlsruhe Institute of Technology, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe (Germany); Moyen, E.; Ozerov, I.; Sahaf, H.; Masson, L.; Hanbuecken, M. [CINaM-CNRS, Aix-Marseille University, Campus Luminy - Case 913, 18288 Marseille (France); Portail, M. [CRHEA-CNRS, Parc de Sophia - Antipolis, rue B. Gregory, 06560 Valbonne (France)

2012-04-09T23:59:59.000Z

185

Apparatus and method for harvesting woody plantations  

DOE Patents [OSTI]

A tree harvester for harvesting felled trees includes a wheel mounted wood chipper which moves toward the butt ends of the tree stems to be processed. The harvester includes a plurality of rotating alignment discs in front of the chipper. These discs align the tree stems to be processed with the mouth of the chipper. A chipper infeed cylinder is rotatably mounted between the discs and the front end of the chipper, and lifts the tree stem butts up from the ground into alignment with the chipper inlet port. The chips discharge from the chipper and go into a chip hopper which moves with the tree harvester. 8 figs.

Eggen, D.L.

1988-11-15T23:59:59.000Z

186

Sustainable forest management and poplar plantations  

E-Print Network [OSTI]

with poplar · 2,250,000 ha in Canada (4 FMUs) · 87,000 in USA (9 FMU) · 31,600 ha in Romania (1 FMU) · 53

Pettenella, Davide

187

Apparatus and method for harvesting woody plantations  

DOE Patents [OSTI]

A tree harvester for harvesting felled trees includes a wheel mounted wood chipper which moves toward the butt ends of the tree stems to be processed. The harvester includes a plurality of rotating alignment discs in front of the chipper. These discs align the tree stems to be processed with the mouth of the chipper. A chipper infeed cylinder is rotatably mounted between the discs and the front end of the chipper, and lifts the tree stem butts up from the ground into alignment with the chipper inlet port. The chips discharge from the chipper and go into a chip hopper which moves with the tree harvester.

Eggen, David L. (Rte. 1, Box 257, Moose Lake, MN 55767)

1988-11-15T23:59:59.000Z

188

Matinicus Plantation Elec Co | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories on climateJunoMedanos

189

Plantation, Florida: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoadingPenobscot County, Maine: EnergyPierceJump81647° LoadingPlainPlano, TX) JumpNo

190

Enhanced optical power of GaN-based light-emitting diode with compound photonic crystals by multiple-exposure nanosphere-lens lithography  

SciTech Connect (OSTI)

The light-emitting diodes (LEDs) with single, twin, triple, and quadruple photonic crystals (PCs) on p-GaN are fabricated by multiple-exposure nanosphere-lens lithography (MENLL) process utilizing the focusing behavior of polystyrene spheres. Such a technique is easy and economical for use in fabricating compound nano-patterns. The optimized tilted angle is decided to be 26.6° through mathematic calculation to try to avoid the overlay of patterns. The results of scanning electron microscopy and simulations reveal that the pattern produced by MENLL is a combination of multiple ovals. Compared to planar-LED, the light output power of LEDs with single, twin, triple, and quadruple PCs is increased by 14.78%, 36.03%, 53.68%, and 44.85% under a drive current 350?mA, respectively. Furthermore, all PC-structures result in no degradation of the electrical properties. The stimulated results indicate that the highest light extraction efficiency of LED with the clover-shape triple PC is due to the largest scattering effect on propagation of light from GaN into air.

Zhang, Yonghui; Wei, Tongbo, E-mail: tbwei@semi.ac.cn; Xiong, Zhuo; Shang, Liang; Tian, Yingdong; Zhao, Yun; Zhou, Pengyu; Wang, Junxi; Li, Jinmin [Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China)

2014-07-07T23:59:59.000Z

191

Nanospherical-lens lithographical Ag nanodisk arrays embedded in p-GaN for localized surface plasmon-enhanced blue light emitting diodes  

SciTech Connect (OSTI)

Large-scale Ag nanodisks (NDs) arrays fabricated using nanospherical-lens lithography (NLL) are embedded in p-GaN layer of an InGaN/GaN light-emitting diode (LED) for generating localized surface plasmon (LSP) coupling with the radiating dipoles in the quantum-well (QWs). Based on the Ag NDs with the controlled surface coverage, LSP leads to the improved crystalline quality of regrowth p-GaN, increased photoluminescence (PL) intensity, reduced PL decay time, and enhanced output power of LED. Compared with the LED without Ag NDs, the optical output power at a current of 350 mA of the LSP-enhanced LEDs with Ag NDs having a distance of 20 and 35 nm to QWs is increased by 26.7% and 31.1%, respectively. The electrical characteristics and optical properties of LEDs with embedded Ag NPs are dependent on the distance of between Ag NPs and QWs region. The LED with Ag NDs array structure is also found to exhibit reduced emission divergence, compared to that without Ag NDs.

Wei, Tongbo, E-mail: tbwei@semi.ac.cn; Wu, Kui; Sun, Bo; Zhang, Yonghui; Chen, Yu; Huo, Ziqiang; Hu, Qiang; Wang, Junxi; Zeng, Yiping; Li, Jinmin [State Key Laboratory of Solid-State Lighting, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083 (China); Lan, Ding [National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100080 (China)

2014-06-15T23:59:59.000Z

192

Thermal Lens Spectroscopy Mladen Franko  

E-Print Network [OSTI]

and biomedicine, measurements in the near- and middle-infrared region, and kinetic determination), applications relativelyhigher thanthatoftheconventional transmission or reflection measurements because, in this technique

Reid, Scott A.

193

Continuously variable focal length lens  

DOE Patents [OSTI]

A material preferably in crystal form having a low atomic number such as beryllium (Z=4) provides for the focusing of x-rays in a continuously variable manner. The material is provided with plural spaced curvilinear, optically matched slots and/or recesses through which an x-ray beam is directed. The focal length of the material may be decreased or increased by increasing or decreasing, respectively, the number of slots (or recesses) through which the x-ray beam is directed, while fine tuning of the focal length is accomplished by rotation of the material so as to change the path length of the x-ray beam through the aligned cylindrical slows. X-ray analysis of a fixed point in a solid material may be performed by scanning the energy of the x-ray beam while rotating the material to maintain the beam's focal point at a fixed point in the specimen undergoing analysis.

Adams, Bernhard W; Chollet, Matthieu C

2013-12-17T23:59:59.000Z

194

System security Dr Len Hamey  

E-Print Network [OSTI]

, firewalls, detecting intrusions) Security process cycle policy implementation administration audit risk access with firewall Use generic service banners Use intrusion detection system that can detect;2 Security Services Confidentiality service. Authentication service. Integrity service. Access Control

Hamey, Len

195

Len Necefer | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

from Tsaile, Arizona and a participant in the 2014 DOE Tribal Energy Program Summer Internship Program at Sandia National Laboratories. He graduated with a Bachelor of Science in...

196

Doctopic: Condensed matter ARTICLE IN PRESS PLA:18239 Please cite this article in press as: A.G. Ramm, Does negative refraction make a perfect lens?, Physics Letters A (2008), doi:10.1016/j.physleta.2008.09.003  

E-Print Network [OSTI]

Doctopic: Condensed matter ARTICLE IN PRESS PLA:18239 Please cite this article in press as: A.physleta.2008.09.003 JID:PLA AID:18239 /SCO Doctopic: Condensed matter [m5G; v 1.60; Prn:15/09/2008; 13:09] P.1 A www.elsevier.com/locate/pla Does negative refraction make a perfect lens? A.G. Ramm Mathematics

197

The Mepkin Abbey shipwreck: diving into Mepkin Plantation's past  

E-Print Network [OSTI]

Congress of South Carolina in 1775; vice president of South Carolina in 1776; and president of the Continental Congress 1777-1778. Laurens was elected Minister Plenipotentiary to Holland in 1779, and was captured at sea while sailing to fulfill... a less-savory aspect: he earned his vast wealth as a trans-Atlantic merchant, and slaves were one of his most profitable cargoes. He was one of the largest owners and importers of African slaves of his period. Laurens invested his money in rice...

Vezeau, Susan Lynn

2004-11-15T23:59:59.000Z

198

Article original Biomasse et minralomasse d'une plantation  

E-Print Network [OSTI]

Ahamed L Gelhaye B Pollier INRA, CRF Nancy, station de recherches sur le sol, la microbiologie et la

Boyer, Edmond

199

Sienna Plantation, Texas: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty Ltd Jump to: navigation,Pvt LtdShrub Oak, New York:Siemens SA JumpSiemens

200

Plantation Mobile Home Park, Florida: Energy Resources | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoadingPenobscot County, Maine: EnergyPierceJump81647° LoadingPlainPlano, TX) JumpNo 2

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Lens x block : World as construction kit  

E-Print Network [OSTI]

Purpose and meaning of the physical world can be re-assigned and re-made by individuals as they go rather than being pre-fixed by people who came before them. But this mindset is more rare than it should be if we want an ...

Silver, Jay (Jay Saul)

2014-01-01T23:59:59.000Z

202

Noise properties of gravitational lens mass reconstruction  

E-Print Network [OSTI]

Gravitational lensing is potentially able to observe mass-selected halos, and to measure the projected cluster mass function. An optimal mass-selection requires a quantitative understanding of the noise behavior in mass maps. This paper is an analysis of the noise properties in mass maps reconstructed using a maximum likelihood method. The noise power spectrum and the mass error bars are derived as a straightforward extension of the Kaiser & Squires (1993) algorithm to the case of a correlated noise. A very good agreement is found between these calculations and the noise properties observed in maximum likelihood mass reconstructions limited to simulated non-critical clusters of galaxies. In a second part, I show that the statistic of peaks in the noise follows accurately the peak statistics of a two-dimensional Gaussian random field (using the BBKS technics) if the smoothing aperture contains enough galaxies. This analysis provides a procedure to derive the significance of any mass peak as a function of its amplitude and its profile. It is demonstrated that, to a very good approximation, a mass map is the sum of the lensing signal plus a 2D gaussian random noise, which means that a detailled quantitative analysis of the structures in mass maps can be done. A direct application is the measurement of the projected mass function in wide field lensing surveys, down to small mass halos which are individually undetectable, this is the subject of a forthcoming work.

L. Van Waerbeke

1999-09-09T23:59:59.000Z

203

Photographic lens manufacturing and production technologies  

E-Print Network [OSTI]

An investigation was conducted to determine the methods and processes required for the manufacture of photographic objective lenses. Production of photographic lenses requires incredible precision in the melting, mixing, ...

Kubaczyk, Daniel Mark

2011-01-01T23:59:59.000Z

204

Crystal diffraction lens with variable focal length  

DOE Patents [OSTI]

A method and apparatus for altering the focal length of a focusing element of one of a plurality of pre-determined focal lengths by changing heat transfer within selected portions of the element by controlled quantities is disclosed. Control over heat transfer is accomplished by manipulating one or more of a number of variables, including: the amount of heat or cold applied to surfaces; type of fluids pumped through channels for heating and cooling; temperatures, directions of flow and rates of flow of fluids; and placement of channels. 19 figures.

Smither, R.K.

1991-04-02T23:59:59.000Z

205

len Jr. Bl!ukr.'.lrd NV  

Broader source: Energy.gov (indexed) [DOE]

and generation, including renewable resources. (4) Development and incorporation of demand response, demand-side resources, and energy-efficiency resources. (5) Deployment of...

206

len Jr. Bl!ukr.'.lrd NV  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf TheViolationsRio Blanco ResponsibleSuite 600,PRESERVE THEWarren

207

BOUNDARY AND LENS RIGIDITY, TENSOR TOMOGRAPHY AND ...  

E-Print Network [OSTI]

Moscow, 50–73 (in Russian). 5. G. Besson, G. Courtois, and S. Gallot, Entropies et rigidités des espaces localement symétriques de courbure strictment négative

2007-09-25T23:59:59.000Z

208

Microsoft Word - FIA-13-0002.docx  

Broader source: Energy.gov (indexed) [DOE]

filed a request with OIR for: Any and all request for papers pertaining to geoengineering; Any and all presentations of geoengineering papersresearchfindingsreports;...

209

E-Print Network 3.0 - alpine lake ecosystems Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

search results for: alpine lake ecosystems Page: << < 1 2 3 4 5 > >> 1 Sustainable Sediment Management of ine oirs considering ecological and economical aspects Summary:...

210

United States Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Carolyn Epps appealed determinations that she received from the Department of Energy (DOE) Office of Information Resources (OIR), the DOE office responsible for processing...

211

FIA-12-0034- In the Matter of National Security Archive  

Broader source: Energy.gov [DOE]

The Office of Hearings and Appeals (OHA) issued a decision granting in part an appeal from a Freedom of Information Act (FOIA) determination issued by the Office of Information Resources (OIR). The National Security Archive (NSA) filed a FOIA request for documents relating to the Bonn Climate Change talks in August 2010. OIR conducted a search and located one responsive document. NSA challenged the adequacy of the search and the OIR agreed to search the retired records at the Washington National Records Center. Consequently, we remanded this matter to OIR so that a search of those records could be performed.

212

Office of Institutional Research & Evaluation Annual Report 2013-2014 Page 1 of 5  

E-Print Network [OSTI]

becoming familiar with the new student information system (iSIS), educating consultants and others on the iSIS Warehouse was accurately loading and reporting its nightly feed from iSIS. In order to facilitate ongoing communication between OIR&E, the Data Warehouse Team and the iSIS Tech Team, a new business analyst position

Dennett, Daniel

213

Characterization of Botryosphaeriaceae from plantation-grown Eucalyptus species in South China  

E-Print Network [OSTI]

offers opportunity for disease avoidance in the future. Keywords: Botryosphaeria, canker, endophyte, 2007). It has also been shown that the Botryosphaeriaceae occur in symptomless tissues as endophytes

214

Mass and Energy Exchange of a Plantation Forest in Scotland Using Micrometeorological Methods  

E-Print Network [OSTI]

Cescatti, Colin Lloyd, Hank Loescher, Sune Moller, Ed Swiatek, and Georg Wolfhart who helped find and solve

215

Carbon storage of harvest-age teak (Tectona grandis) plantations, Panama  

E-Print Network [OSTI]

se encuentran. Se midieron la proporcioÂn raõÂz-vaÂstago, la biomasa total y el contenido de carbono

Potvin, Catherine

216

Summary We estimated total ecosystem respiration from a ponderosa pine (Pinus ponderosa Dougl. ex Laws.) plantation  

E-Print Network [OSTI]

Forest ecosystems are important in global carbon cycling be- cause 80% of the carbon stored in terrestrial vegetation is for- est biomass and forest soil contains more than 70% of the world's soil carbon- aged not only for timber and non-timber products, but also for CO2 sequestration. Therefore, ecosystem

Cohen, Ronald C.

217

Continuous measurements of soil respiration with and without roots in a ponderosa pine plantation in the  

E-Print Network [OSTI]

soil carbon www.elsevier.com/locate/agrformet Agricultural and Forest Meteorology 132 (2005) 212;sequestration and reduced CO2 efflux (Lal, 2004; Goh, 2004). Improved understanding of the mechanisms is necessary for evaluating the soil carbon budget on the global scale. Soil respiration has been extensively

Cohen, Ronald C.

218

Sarah Besky Culture and Agriculture Prelim: "Can a Plantation be Fair? Paradoxes and Possibilities in  

E-Print Network [OSTI]

Networks: Own Brand and Chocolate in UK Supermarkets. In Fair Trade: The Challenges Transforming: Power, Production, and History in the Americas. Steve Striffler and Mark Moberg, eds. Pp. 103.D. dissertation, Department of Anthropology, New School for Social Research. Erem, Suzan 2001 Labor Pains: Inside

Wisconsin at Madison, University of

219

CO2 Mitigation Potential of Biomass Energy Plantations in DevelopingRegions  

E-Print Network [OSTI]

) of the total demand for primary energy by 2050 (Fig. 1a).2 Global CO2 emissions in 2050 are 25% less than Biomass can make major contributions to the global commercial energy economy in ways that help promote to global energy supply in a renewables-intensive global energy scenario (RIGES), providing 35% (206 EJ

220

Managing for water-use efficient wood production in Eucalyptus globulus plantations  

E-Print Network [OSTI]

b Whitegum Forest and Natural Resources Pty. Ltd., PO Box 3269, Midland, Western Australia 6056 Farm Industries, Stirling Hwy, Nedlands, Western Australia 6009, Australia e NREL, Colorado State, Dwellingup, Western Australia 6213, Australia g Forest Quality Pty. Ltd., PO Box 293, Huonville, Tasmania

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Gray squirrel usage of hardwood ravines within pine plantations in east Texas  

E-Print Network [OSTI]

;of capture points falling in each type ~Pa e 13 2. Stand type map of plot 2 showing the absolute and relative area covered by each forest type, squirrel capture points, and the relative number of capture points falling in each type 3. Stand type map... morning beginning about two hours after sunrise. Redwood box traps baited with freshly broken pecans were found to work very well in capturing squirrels. The easiest way to handle an animal was to slip a mesh bait bag {Nylon Net Co. , Memphis) over...

McElfresh, Robert William

1977-01-01T23:59:59.000Z

222

Managing watershed services of tropical forests and plantations: can meta-analyses help?  

E-Print Network [OSTI]

is also relevant to reservoirs for drinking water or hydroelectricity production (Guo et al., 2000). Over

Paris-Sud XI, Université de

223

Establishment phase greenhouse gas emissions in short rotation woody biomass plantations  

E-Print Network [OSTI]

to short-rotation woody biomass crops (SRWC) for bioenergy in the Northern U.S. Lake States. GHG debts-rotation woody bio- energy crops (SRWC), specifically hybrid-poplar (Populus spp.) and willow (Salix spp.), being in the Northern Lake States, USA Marin M. Palmer a, *, Jodi A. Forrester a , David E. Rothstein b , David J

Turner, Monica G.

224

South Florida Sun-Sentinel.com For Plantation attorney, Florida's mortgage meltdown  

E-Print Network [OSTI]

created to process mortgage-related paperwork for his law practice, said it would delist its stock from

Belogay, Eugene A.

225

High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Hawaii HIGH PERFORMANCEDOE Biomass Program Review

226

accommodating intraocular lens: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(more) Patrick Frensel de Moraes Tzelikis 2008-01-01 5 Phakic Intraocular Lenses, ICL & PRL : silmnsisiset piilolinssit ja niiden tuottamat tulokset. Open Access Theses and...

227

accommodative intraocular lens: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(more) Patrick Frensel de Moraes Tzelikis 2008-01-01 5 Phakic Intraocular Lenses, ICL & PRL : silmnsisiset piilolinssit ja niiden tuottamat tulokset. Open Access Theses and...

228

Short Communication Lens Defects and Age-Related Fiber Cell  

E-Print Network [OSTI]

of Increased A PP Gene Dosage in Down Syndrome Peter H. Frederikse and Xiao-Ou Ren From the Department Early-onset cataract and Alzheimer's disease occur with high frequency in Down syndrome (trisomy 21 report on mice carrying a com- plete copy of a wild-type human A PP (hA PP) gene from the Down syndrome

Frederikse, Peter

229

Lens-array PDV Probe Using a Pyramid Prism  

SciTech Connect (OSTI)

A bug eye probe is shown using a pyramid prism, and its advantages and disadvantages are enumerated. Also shown is abug eye imaging probe, with its advantages and disadvantages enumerated.

Malone, R. M., Kaufman, M. I., Cox, B., Romero, V., Cata B., Sorenson, D. Pazuchanics, P.

2011-11-01T23:59:59.000Z

230

Interfacing light and single atoms with a lens  

E-Print Network [OSTI]

We characterize the interaction between a single atom or similar microscopic system and a light field via the scattering ratio. For that, we first derive the electrical field in a strongly focused Gaussian light beam, and then consider the atomic response. Following the simple scattering model, the fraction of scattered optical power for a weak coherent probe field leads to unphysical scattering ratios above 1 in the strong focusing regime. A refined model considering interference between exciting and scattered field into finite-sized detectors or optical fibers is presented, and compared to experimental extinction measurements for various focusing strengths.

Meng Khoon Tey; Gleb Maslennikov; Timothy C. H. Liew; Syed Abdullah Aljunid; Florian Huber; Brenda Chng; Zilong Chen; Valerio Scarani; Christian Kurtsiefer

2009-02-17T23:59:59.000Z

231

acrylic intraocular lens: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

topology. The solution is characterised by a charge, two angular momenta and a magnetic flux through a non-contractible disc region ending on the horizon, with one constraint...

232

DEBATE Open Access Observing copepods through a genomic lens  

E-Print Network [OSTI]

genomic tools have transformed many areas of biological and biomedical research, their power to elucidate: Copepods outnumber every other multicellular animal group. They are critical components of the world

Lee, Carol Eunmi

233

Fabrication process for a gradient index x-ray lens  

DOE Patents [OSTI]

A process for fabricating high efficiency x-ray lenses that operate in the 0.5-4.0 keV region suitable for use in biological imaging, surface science, and x-ray lithography of integrated circuits. The gradient index x-ray optics fabrication process broadly involves co-sputtering multi-layers of film on a wire, followed by slicing and mounting on block, and then ion beam thinning to a thickness determined by periodic testing for efficiency. The process enables the fabrication of transmissive gradient index x-ray optics for the 0.5-4.0 keV energy range. This process allows the fabrication of optical elements for the next generation of imaging and x-ray lithography instruments m the soft x-ray region.

Bionta, Richard M. (Livermore, CA); Makowiecki, Daniel M. (Livermore, CA); Skulina, Kenneth M. (Livermore, CA)

1995-01-01T23:59:59.000Z

234

Adaptive liquid crystal lens with large focal length tunability  

E-Print Network [OSTI]

applications in auto beam steering, mobile phone cameras, eyeglasses, and other machine visions. Various

Wu, Shin-Tson

235

On calculation of microlensing light curve by gravitational lens caustic  

E-Print Network [OSTI]

For an analysis of microlensing observational data in case of binary gravitational lenses as well as for an interpretation of observations of high magnification events in multiple images of a lensed quasar it is necessary to calculate for a given source the microlensing light curve by a fold caustic. This problem comes to the numerical calculation of a singular integral. We formulated the sufficient condition of a convergence of the integral sum for this singular integral. The strictly approach to the problem of a comparison of model results with the unequally sampled observational data consists in calculation of the model light curve in equidistant points of the canonical dissection of the integration segment and a following interpolation of its values at the moments of observations.

M. B. Bogdanov

2001-02-02T23:59:59.000Z

236

Supersymmetric features of the Maxwell fish-eye lens  

E-Print Network [OSTI]

We provide a supersymmetric analysis of the Maxwell fisheye (MF) wave problem at zero energy. Working in the so-called $R_{0}=0$ sector, we obtain the corresponding superpartner (fermionic) MF effective potential within Witten's one-dimensional (radial) supersymmetric procedure.

H. C. Rosu; M. Reyes; K. B. Wolf; O. Obregón

1996-04-24T23:59:59.000Z

237

Focusing on optic tectum circuitry through the lens of genetics  

E-Print Network [OSTI]

areas in the brain. The interconnectivity of multiple areasshow the complex interconnectivity of visual and olfactory

Nevin, Linda M; Robles, Estuardo; Baier, Herwig; Scott, Ethan K

2010-01-01T23:59:59.000Z

238

Bio-inspired fluidic lens for biomedical applications  

E-Print Network [OSTI]

nm IR-LED lighting ~35um Figure 4.10 Comparison of featureComparison of feature resolution with USAF target under regular visible lighting (

Tsai, Shang-Feng (Frank)

2010-01-01T23:59:59.000Z

239

Urban Magnetism Through The Lens of Geo-tagged Photography  

E-Print Network [OSTI]

There is an increasing trend of people leaving digital traces through social media. This reality opens new horizons for urban studies. With this kind of data, researchers and urban planners can detect many aspects of how people live in cities and can also suggest how to transform cities into more efficient and smarter places to live in. In particular, their digital trails can be used to investigate tastes of individuals, and what attracts them to live in a particular city or to spend their vacation there. In this paper we propose an unconventional way to study how people experience the city, using information from geotagged photographs that people take at different locations. We compare the spatial behavior of residents and tourists in 10 most photographed cities all around the world. The study was conducted on both a global and local level. On the global scale we analyze the 10 most photographed cities and measure how attractive each city is for people visiting it from other cities within the same country or...

Paldino, Silvia; Sobolevsky, Stanislav; Ratti, Carlo; González, Marta C

2015-01-01T23:59:59.000Z

240

MEMS Lens Scanners for Free-Space Optical Interconnects  

E-Print Network [OSTI]

Journal of microelectromechanical systems, vol. 12, no. 3,actuators,” Microelectromechanical Systems, Journal of, vol.Journal of Microelectromechanical Systems, vol. 15, no. 6,

Chou, Jeffrey Brian

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Viewing paleontology through a geochemical lens: 2 case studies  

E-Print Network [OSTI]

record in general can be informative about paleodiversity, taphonomy and paleoecology as well as the biology, diet and disease history of organisms (Macfadden and Cerling, 1996, Grice et al., 2005, Killops and Killops, 2005, Alroy, 2010). Techniques... and fossil salmon: The record of lifetime migration and diagenesis. Earth and Planetary Science Letters 108, 227-287. Koch, P.L.H., J., Moss, C., Carlson, R.W., Fogel, M.L., Behrensmeyer, A.K., 1995. Isotopic tracking of the diet and home range of African...

Anderson, Brendan Matthew

2013-08-31T23:59:59.000Z

242

Index of /research/alcator/documentation/Lens Stain  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching.348 270Energyradsafe/files [ICO]ICRF 5W

243

Microsoft Word - FIA-13-0057.doc  

Broader source: Energy.gov (indexed) [DOE]

informed the Appellant that it was transferring his FOIA Request to OSTI to conduct a search for responsive documents. See Letter from Alexander C. Morris, FOIA Officer, OIR, to...

244

FIA-13-0039- In the Matter of Avery R. Webster  

Broader source: Energy.gov [DOE]

On July 17, 2013, OHA issued a decision denying an appeal (Appeal) from a FOIA determination issued by the Office of Information Resources (OIR).  The Appellant had filed a FOIA request seeking...

245

ADASS XV in Spain: The Old Systems Are Dying.  

E-Print Network [OSTI]

and Systems Annular Solar Eclipse! Old Software systems are losing support Scripting and API's are being specifications for a new system which OIR Lunch 2005-10-20 Since 1995, there has been a Birds of a Feather

246

SIZE OF COARSE WOODY DEBRIS 5 YEARS AFTER GIRDLING AND REMOVAL TREATMENTS IN 50-YEAR-OLD LOBLOLLY PINE PLANTATIONS  

SciTech Connect (OSTI)

PP 108 -113 in: Connor, Kristina F., ed. 2004. Proceedings of the 12th biennial southern silvicultural research conference. Gen. Tech. Rep. SRS?71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 594 p. Abstract: In 1996, a study began at Savannah River Site to investigate large-scale replicated forest areas to control coarse woody debris for integrated biodiversity objectives. Research design was a randomized complete block with four treatments replicated in four blocks, resulting in 16 plots. The treatments applied to 50-year-old loblolly pine stands were (1) control, (2) girdling of 25 percent of trees to create catastrophic simulation, (3) annual removal of down woody debris > 10 cm in diameter, and (4) annual removal of both standing and down woody debris > 10 cm in diameter. The study tracks coarse woody debris recruitment and loading, rates of decomposition, and effects on the forest ecosystem.

M. Boyd Edwards

2004-01-01T23:59:59.000Z

247

Functional structure of ant and termite assemblages in old growth forest, logged forest and oil palm plantation in Malaysian Borneo  

E-Print Network [OSTI]

in varying stages of decay (e.g. dead wood, leaf litter and soil). They play major roles in processes such as decomposition, and nutrient and carbon cycling (Eggleton et al. 1997; Jones and Eggleton 2000; Donovan et al. 2001). Ants disperse seeds, assist soil... and accidental effects on soil and feedback loops. Appl Soil Ecol 32:153–164. doi:10.1016/j.apsoil.2005. 07.004 Klimes P, Idigel C, Rimandai M et al (2012) Why are there more arboreal ant species in primary than in secondary tropical forests? J Animal Ecol 81...

Luke, Sarah H.; Fayle, Tom M.; Eggleton, Paul; Turner, Edgar C.; Davies, Richard G.

2014-07-30T23:59:59.000Z

248

134 BioScience February 2001 / Vol. 51 No. 2 Plantations of forest trees have been established  

E-Print Network [OSTI]

companies have emerged and become important contributors to world timber and pulp production. Most established throughout the world, primarily to provide structural timber and fiber for pulp.In the Northern of these companies also contribute to international efforts to reduce the logging of old-growth native forests

249

134 BioScience February 2001 /Vol. 51 No. 2 Plantations of forest trees have been established  

E-Print Network [OSTI]

important contributors to world timber and pulp production. Most of these companies also contribute. Based on the development of these species hybrids,large international companies have emerged and become, such as conflicts of interest between conservation groups and forestry companies.We also discuss the relatively

250

Shallow Seismic Investigation of Hydrogeologic Problems in the Brazos River Alluvium, Texas A&M Plantation, Burleson County, Texas  

E-Print Network [OSTI]

Twenty-two shallow, reversed, seismic refraction profiles were conducted in the Brazos River floodplain to test the feasibility of using seismic methods to provide hydrogeologic information in this province. The specific objectives were to map...

McBrayer, M.A.

251

Comparing soil carbon of short rotation poplar plantations with agricultural crops and woodlots in north central United States.  

SciTech Connect (OSTI)

Atmospheric carbon dioxide (CO2) has increased dramatically since the beginning of the Industrial Revolution as a result of human activities (Keeling and others 1995, Houghton and others 2001). The primary cause of CO2 increases are worldwide fossil fuel burning, biomass burning, and cement manufacturing. These activities are, in turn, tied to the expanding world population and a rising demand for energy. If the steady increase of CO2 continues, there may be profound effects on the environment and the world economy from a "greenhouse effect" that has led to global warming of the atmosphere (Houghton and others 2001).

Coleman, Mark D.; Isebrands, J.G.; Tolsted, David N.; Tolbert, Virginia R.

2004-03-01T23:59:59.000Z

252

A review of "Bradford’s Books: Of Plymouth Plantation and the Printed Word." by Douglas Anderson  

E-Print Network [OSTI]

, Eusebius, John Fox) but also in their hand-ruled ap- pearance mimic the very look of printed books. Similarly, the ini- tial storm-at-sea episode is rendered textually complex by its allusion to Paul?s voyage in The Acts of the Apostles. These and other... generation of Christians, the actual nostalgic model for the Pilgrims. As Anderson astutely points out elsewhere, Paul?s epistles are intertextually interwoven in Bradford?s history. In this overlooked instance, Paul?s unseen ghost is present in an unusual...

William J. Scheick

2003-01-01T23:59:59.000Z

253

The End of the Plantations and the Transformation of Indigenous Society in Highland Chiapas, Mexico, 1974-2009  

E-Print Network [OSTI]

These were the years of Mexico‘s oil boom, and although thenewly discovered oil reserves, Mexico suddenly had access tothe decline of world oil prices, Mexico fell into a deep

Rus, III, Jan

2010-01-01T23:59:59.000Z

254

The End of the Plantations and the Transformation of Indigenous Society in Highland Chiapas, Mexico, 1974-2009  

E-Print Network [OSTI]

newly discovered oil reserves, Mexico suddenly had access tothe decline of world oil prices, Mexico fell into a deepThese were the years of Mexico‘s oil boom, and although the

Rus, III, Jan

2010-01-01T23:59:59.000Z

255

Shallow seismic investigation of hydrogeologic problems in the Brazos River alluvium, Texas A&M Plantation, Burleson County, Texas  

E-Print Network [OSTI]

of Water Table Based on Seismic Data 36 Figure 11. Travel-time Graphs (Profiles 1 through 5). . 37 Figure 12. Travel-time Graphs (Profiles 6 through 11). . 38 Figure 13. Travel-time Graphs (Profiles 12 through lg). . 39 Figure 14. Travel-time Graphs... (Profiles 18, 19, 30, and 40). . 40 TABLE Depths and Estimated Variance of the Depths to the Water Table. . . . . . . . . . Seismic Velocities-Compressional. . Page '73 ABSTRACT Twenty-two shallow, reversed, seismic refraction profiles were...

McBrayer, Michael Albert

2012-06-07T23:59:59.000Z

256

2006 The Authors DOI: 10.1111/j.1366-9516.2006.00257.x Journal compilation 2006 Blackwell Publishing Ltd www.blackwellpublishing.com/ddi 1  

E-Print Network [OSTI]

plantations, oil palm plantations, and open areas. We surveyed these degraded habitats using point counts; open habitats for perching; shrubs in oil palm plantations for foraging). In terms of spe- cies richness and abundance, rubber tree plantations were more important than oil palm plantations and open

Sekercioglu, Cagan Hakki

257

Annual report to the Office of Industrial Relations, fiscal year 1983  

SciTech Connect (OSTI)

The Assessment and Field Support Program (AFSP) of the Manpower Education, Research, and Training Division, ORAU, provides lead technical assistance to the Office of Industrial Relations (OIR), DOE. OIR has headquarters responsibility for monitoring and supporting DOE national laboratories and other government-owned, contractor-operated (GOCO) facilities in developing and maintaining an efficient and effective workforce. In addition to providing support to GOCOs, this mission includes coordination and assistance to DOE program offices in carrying out their mission includes coordination and assistance to DOE program offices in carrying out their human resource development activities. The Division of Contractor Personnel Management, Human Resource Development Branch, is responsible for carrying out four major functions: (1) policy development and communication, (2) manpower planning and analysis, (3) training program development, administration, and evaluation, and (4) sharing training resources and expertise. AFSP's support to OIR is organized around these four major functions.

Not Available

1983-12-01T23:59:59.000Z

258

High Tonnage Forest Biomass Production Systems from Southern...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations This...

259

188 Forest health surveillance in Victoria Australian Forestry 2008 Vol. 71 No. 3 pp. 188195  

E-Print Network [OSTI]

available for sustainable timber production (VictorianAssociation of Forest Industries 2008). Native forestForests. While several companies manage plantations in Victoria, HVP Plantations (formerly Hancock Victoria

260

194 PART 2 LANDSCAPE DESIGN GUIDELINES AND PRECINCT PLANS View of McGowan looking northwest  

E-Print Network [OSTI]

GUTERMAN BIOCLIMATIC LAB PALMROAD POMOLOGY COLD STORAGE AND SALES WATER FILTRATION PLANT PLANTATIONS GUTERMAN BIOCLIMATIC LAB PALMROAD POMOLOGY COLD STORAGE AND SALES WATER FILTRATION PLANT PLANTATIONS

Chen, Tsuhan

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Steady-State Diffusion of Water through Soft-Contact Lens Materials  

E-Print Network [OSTI]

Fig. 2 Measured steady-state water fluxes as a function ofTM hydrogels. Measured steady-state water fluxes are largestthe measured steady- state water fluxes increase with rising

Fornasiero, Francesco; Krull, Florian; Radke, Clayton J.; Prausnitz, John M.

2005-01-01T23:59:59.000Z

262

"Through the National Lens": Nationality, Territory, and the Formation of "Crimean-Russian" Identity  

E-Print Network [OSTI]

the nation state not only deprives us of a more complete understanding of identity dynamics, but may render invisible those marginalized groups whose stories do not necessarily play out at the scale of the nation-state. In this way, there is something of a...). Weber cited a number of examples – including Switzerland, Alsace-Loraine, and Quebec – where ethnic identity and nationality are not only incongruous but are often completely divergent. Weber challenged the prevailing understanding of his time...

Charron, Austin Luc

2012-12-31T23:59:59.000Z

263

Segmentation of Crystalline Lens in Photorefraction Video Mark Wendt and Shishir K. Shah  

E-Print Network [OSTI]

of infrared light emitting diodes (IR-LED) is located on this occlud- ing device. The system of video camera

264

Venture Capitalists' Decision to Withdraw: The Role of Portfolio Configuration From a Real Options Lens  

E-Print Network [OSTI]

When does a venture capital firm withdraw from an investment project prior to its completion? This study offers a real options view on this decision by examining the contingent effects of portfolio configuration. We explore how project withdrawal...

Li, Yong; Chi, Tailan

2012-01-01T23:59:59.000Z

265

E-Print Network 3.0 - adult chicken lens Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tomatoes * Maple Glazed Chicken * Whole Grain and Wild Rice Roasted Root Vegetables Cranberry... of financial services. Menu: Chicken and Rice Soup * Sunflower Bread Spinach...

266

Development and operation of a high-throughput accurate-wavelength lens-based spectrometer  

SciTech Connect (OSTI)

A high-throughput spectrometer for the 400–820 nm wavelength range has been developed for charge exchange recombination spectroscopy or general spectroscopy. A large 2160 mm{sup ?1} grating is matched with fast f/1.8 200 mm lenses, which provide stigmatic imaging. A precision optical encoder measures the grating angle with an accuracy ?0.075 arc sec. A high quantum efficiency low-etaloning CCD detector allows operation at longer wavelengths. A patch panel allows input fibers to interface with interchangeable fiber holders that attach to a kinematic mount at the entrance slit. Computer-controlled hardware allows automated control of wavelength, timing, f-number, automated data collection, and wavelength calibration.

Bell, Ronald E., E-mail: rbell@pppl.gov [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2014-11-15T23:59:59.000Z

267

The zebrafish lens proteome during development and aging Teri M.S. Greiling,1  

E-Print Network [OSTI]

, mutations in -, -, or -crystallins have been linked to loss of transparency and human congenital cataract: (206) 685-0950; FAX: (206) 543-1524; email: clarkji@u.washington.edu almost identical to water so

Clark, John

268

Metamaterial-based gradient index lens with strong focusing in the THz  

E-Print Network [OSTI]

Center OPTIMAS, University of Kaiserslautern, Germany 2Fraunhofer Institute for Physical Measurement Techniques IPM, Freiburg, Germany mrahm@physik.uni-kl.de Abstract: The development of innovative terahertz (THz) imaging systems has recently moved in the focus of scientific efforts due to the ability

269

The reflective lens : the effects of video analysis on preservice teacher development  

E-Print Network [OSTI]

and 33 participants in the 2005-06 cohort preservice InternPecheone & Chung, 2004). The 2005-06 Intern Teacher cohort05, the pilot-year, and 2005-06, the year of the study. In

Halter, Christopher P.

2006-01-01T23:59:59.000Z

270

Why farm the city? Theorizing urban agriculture through a lens of metabolic rift  

E-Print Network [OSTI]

timbre, government agencies, non-governmental organizations and farmers' groups have touted the potential' is an effective framework for differentiating UA's multiple origins and functions across the Global North-graders from a nearby ele- mentary school plant a vegetable garden, the first of its kind at the White House

271

GeoLens: Enabling Interactive Visual Analytics over Large-scale, Multidimensional Geospatial Datasets  

E-Print Network [OSTI]

Datasets Jared Koontz, Matthew Malensek, and Sangmi Lee Pallickara Department of Computer Science, Colorado for scientists are needed. This is critical when scientists are manipulating voluminous datasets and especially when they need to explore datasets interactively to develop their hypotheses. In this paper, we present

Pallickara, Sangmi

272

E-Print Network 3.0 - anterior lens capsule Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Mathematics 44 Automating Prostate Capsule Contour Estimation for 3D Model Reconstruction Using Shape and Histological Features Summary: Automating Prostate...

273

Friend Lens: Novel Web Content Sharing through Strategic Manipulation of Cached HTML  

E-Print Network [OSTI]

and Facebook allow for the quick and easy authoring of new content but do not support the complete extraction of external content. Clip Marks is a Firefox plug-in that does not allow for user to author original content, only allowing for the extraction...

Gibbons, John William

2010-02-12T23:59:59.000Z

274

LocaL TaLenT GLobaL ImpacT  

E-Print Network [OSTI]

of harnessing wave energy and innovative methods of bringing music to audiences. This is a series of engaging

Müller, Jens-Dominik

275

Optical Properties of Plasmonic Zone Plate Lens, SERS-active Substrate and Infrared Dipole Antenna  

E-Print Network [OSTI]

........................................................................................................... 41 Table 4 Comparison of SP dispersion relation both in propagation direction (k sp,x ) and in the perpendicular direction (k z,d and k z,m ) of the metal/PMMA (? d = 2.34) interface for the selected metals at incident wavelength of 405 nm...?ZP, respectively, along z direction.............................................. 45 Figure 16 The effective refractive index Re(n eff ), n eff = ?/k 0 , and propagation length of SPPs (L spp ) as a function of slit width w. The slit is filled with (a) PMMA...

Kim, Hyun Chul

2010-10-12T23:59:59.000Z

276

Design and performance of a 30 KV electron gun with ten independent cathodes & a magnetic lens.  

SciTech Connect (OSTI)

Measurements on a 30 kV electron gun with ten independent cathodes, operating in a 6.5 Tesla (T) magnetic field are presented. An earlier paper covered the design of this electron gun [1]. Experimental results are compared to model predictions. Beam current is compared to theoretical space charge limited flow.

Rudys, Joseph Matthew; Reed, Kim Warren

2006-08-01T23:59:59.000Z

277

A Look at the Consequences of Internet Censorship Through an ISP Lens  

E-Print Network [OSTI]

blocking; Video streaming; Porn; 1. INTRODUCTION Nation-level censorship affects the activities of hundreds traces collected before and after the porn and YouTube censorship e

Paxson, Vern

278

High Cost/High Risk Components to Chalcogenide Molded Lens Model: Molding Preforms and Mold Technology  

SciTech Connect (OSTI)

This brief report contains a critique of two key components of FiveFocal's cost model for glass compression molding of chalcogenide lenses for infrared applications. Molding preforms and mold technology have the greatest influence on the ultimate cost of the product and help determine the volumes needed to select glass molding over conventional single-point diamond turning or grinding and polishing. This brief report highlights key areas of both technologies with recommendations for further study.

Bernacki, Bruce E.

2012-10-05T23:59:59.000Z

279

Monetary compensations in climate policy through the lens of a general equilibrium assessment  

E-Print Network [OSTI]

and the Organization of the Petroleum-Exporting Countries (OPEC) that these concerns have been officially acknowledged transfers raise questions about both their amount and their efficiency for sustaining economic activity. The first question relates to the evaluation of climate policy losses in oil-exporting countries, which

Paris-Sud XI, Université de

280

Variable-focus liquid lens Hongwen Ren and Shin-Tson Wu  

E-Print Network [OSTI]

. Introduction Variable focus liquid lenses are attractive for cellular phone, camera, eyeglasses, and other

Wu, Shin-Tson

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Rsultats des candidatures au Diplme de l'ENS Jury du 5 juillet 2013 -Dpartements scientifiques  

E-Print Network [OSTI]

MAUREL Matthieu Admis L3 RAMIS CLADERA Valérie-Anne Admise L3 SANCHEZ Téo Admis L3 STROUK Léonard Admis L Cyrielle Admise L3 DELEFORTERIE Yves Admis L3 GEROMEL Faustine Admise L3 HENRIQUET Maxime Admis L3 LACOMBE

Gutkin, Boris

282

Adaptive liquid lens actuated by photo-polymer , Hongwen Ren1  

E-Print Network [OSTI]

-based broadband variable fiber optical attenuator," Opt. Commun. 282(7), 1298­1303 (2009). 11. S. Murali, K. P Moharam1 , Shin-Tson Wu1 *, and Nelson Tabiryan2 1 College of Optics and Photonics, University of Central light irradiation, the polymer is bent which exerts a pressure to regulate the curvature of the membrane

Wu, Shin-Tson

283

The military lens : doctrinal differences, misperception, and deterrence failure in Sino-American relations  

E-Print Network [OSTI]

Nations, because of their different strategic situations, histories, and military cultures can have dramatically different beliefs about the nature of effective military doctrine, strategy, and capabilities. This dissertation ...

Twomey, Christopher P

2005-01-01T23:59:59.000Z

284

Enhancing the Solar Water Disinfection (SODIS) Method Using a Fresnel Lens  

E-Print Network [OSTI]

water contained in plastic bottles: characterizing thecontamination from the plastic bottles themselves (Schmid*,into plastic polyethylene terephthalate (PET) bottles and

Awad, Christina

2012-01-01T23:59:59.000Z

285

Thermal lens elimination by gradient-reduced zone coupling of optical beams  

DOE Patents [OSTI]

A thermal gradient-reduced-zone laser includes a laser medium and an optically transparent plate with an index of refraction that is less than the index of refraction of the laser medium. The pump face of the laser medium is bonded to a surface of the optically transparent member. Pump light is directed through the transparent plate to optically pump the solid state laser medium. Heat conduction is mainly through the surface of the laser medium where the heat is introduced by the pump light. Heat flows in a direction opposite to that of the pump light because the side of the laser medium that is opposite to that of the pump face is not in thermal contact with a conductor and thus there is no heat flux (and hence, no temperature gradient), thus producing a thermal gradient-reduced zone. A laser cavity is formed around the laser medium such that laser light oscillating within the laser cavity reflects by total-internal-reflection from the interface between the pump face and the optically transparent plate and enters and exits through a thermal gradient-reduced zone.

Page, Ralph H. (San Ramon, CA); Beach, Raymond J. (Livermore, CA)

2000-01-01T23:59:59.000Z

286

The Metropolis in Masquerade: Melbourne ‘through the Looking-Glass’ Lens of Fashion Photography  

E-Print Network [OSTI]

Bruno Benini. Collection: Powerhouse Museum, Sydney ©EstateBruno Benini. Collection: Powerhouse Museum, Sydney ©EstateBruno Benini. Collection: Powerhouse Museum, Sydney ©Estate

Berry, Jess

2012-01-01T23:59:59.000Z

287

Development and Operation of High-throughput Accurate-wavelength Lens-based Spectrometer  

SciTech Connect (OSTI)

A high-throughput spectrometer for the 400-820 nm wavelength range has been developed for charge exchange recombination spectroscopy or general spectroscopy. A large 2160 mm-1 grating is matched with fast f /1.8 200 mm lenses, which provide stigmatic imaging. A precision optical encoder measures the grating angle with an accuracy < 0.075 arc seconds. A high quantum efficiency low-etaloning CCD detector allows operation at longer wavelengths. A patch panel allows input fibers to interface with interchangeable fiber holders that attach to a kinematic mount behind the entrance slit. Computer-controlled hardware allows automated control of wavelength, timing, f-number, automated data collection, and wavelength calibration.

Bell, Ronald E

2014-07-01T23:59:59.000Z

288

Low CrossPolarization WBand Lens for CAPMAP Annika Peter, Advisor: Suzanne Staggs  

E-Print Network [OSTI]

­front bending occurs at one surface, are highly curved, meaning that the angle of incidence to the surface can nearly a black­body at 2.73 K, and that there exist deviations from this black­body of order 10 -5 K as #(â??n) = #T (â??n)/T . One does something similar for Q and U , but not V because it is not expected

289

Spatially Resolved Millimeter Spectroscopy of the Gravitational Lens PKS 1830-211  

E-Print Network [OSTI]

This paper presents data from the BIMA interferometer showing spatially resolved absorption spectra of the gravitationally lensed quasar PKS 1830-211. High-resolution (1.2 km/s) spectra were taken in two spectral windows centered on the redshifted frequencies of the HCO+(2-1) and HCN(2-1) molecular transitions. There is no molecular absorption in the northeast image but the southwest image reveals optically thick absorbing gas at these transition frequencies. Further analyses conclude that the spectra are consistent with completely saturated absorption in the southwest image and the line profiles suggest that the absorbing medium is complex, perhaps containing multiple components and small scale structure. The absorption occurs along a pencil beam through the lensing galaxy which is thought to be a late type spiral oriented almost face on. However, the spectra show absorption spanning more than 60 km/s which is difficult to explain for this scenario.

Swift, J; Frye, B L

2001-01-01T23:59:59.000Z

290

Design, fabrication, and testing of a variable focusing micromirror array lens  

E-Print Network [OSTI]

(silicon nitride) 0.60 Poly-0 (bottom polysilicon layer) 0.50 1st Oxide (sacrificial layer - phosphosilicate glass) 2.0 Poly-1 (middle polysilicon layer) 2.0 2nd Oxide (sacrificial layer - phosphosilicate glass) 0.75 Poly-2 (top polysilicon layer...-layer polycrystalline silicon (polysilicon) process. It is intended for prototyping MEMS, using surface-micromachined thin films on a silicon wafer. MUMPs? offers three patternable layers of polysilicon and two sacrificial layers of phosphosilicate glass on a base...

Cho, Gyoungil

2005-08-29T23:59:59.000Z

291

China's Presence in Rwanda and Africa, through the Lens of the Product Life Cycle Theory  

E-Print Network [OSTI]

>. "Looking-East-Rwanda-China-case-study." Home | ACET.849662/special-report-china-storms-africa>. "The Birth ofGift: The Real Story of China in Africa [Paperback]." N.p. ,

Sofiani, Lily

2013-01-01T23:59:59.000Z

292

The reflective lens : the effects of video analysis on preservice teacher development  

E-Print Network [OSTI]

reflections. Wisconsin. Danielewicz, J. , & NetLibrary2002; Clark, 2001; Danielewicz & NetLibrary Inc. , 2001;

Halter, Christopher P.

2006-01-01T23:59:59.000Z

293

E-Print Network 3.0 - anterior lens capsular Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Information Sciences ; Biology and Medicine 24 November 4, 2009 6.16 The sonic hedgehog gene is shown by in situ hybridization to be expressed in the chick nervous...

294

An eye for vulgarity : how MoMA saw color through Wild Bill's lens  

E-Print Network [OSTI]

This thesis is an examination of the 1976 Museum of Modern Art exhibition of color photographs by William Eggleston-the second one-man show of color photography in the museum's history- with particular attention to the ...

Kivlan, Anna Karrer

2007-01-01T23:59:59.000Z

295

Ionic Liquids as an Attractive Alternative Solvent for Thermal Lens Measurements  

E-Print Network [OSTI]

in volatile organic solvents such as benzene, carbon tetrachloride, and hexane. However, the ILs are more,2 Nonpolar, volative organic solvents such as benzene, carbon tetrachloride, and hexane should provide good

Reid, Scott A.

296

WSi2/Si Multilayer Sectioning by Reactive Ion Etching for Multilayer Laue Lens Fabrication  

SciTech Connect (OSTI)

SPIE Conference paper/talk presentation: Introduction: Reactive ion etching (RIE) has been employed in a wide range of fields such as semiconductor fabrication, MEMS (microelectromechanical systems), and refractive x-ray optics with a large investment put towards the development of deep RIE. Due to the intrinsic differing chemistries related to reactivity, ion bombardment, and passivation of materials, the development of recipes for new materials or material systems can require intense effort and resources. For silicon in particular, methods have been developed to provide reliable anisotropic profiles with good dimensional control and high aspect ratios1,2,3, high etch rates, and excellent material to mask etch selectivity...

Bouet, N.; Conley, R.; Biancarosaa, J.; Divanc, R.; Macrander, A. T.

2010-08-01T23:59:59.000Z

297

Electron beam melting at high pressures with a vacuum separator/plasma lens  

SciTech Connect (OSTI)

Plasmas can be used to provide a vacuum-atmosphere interface or separation between vacua regions as an alternative to differential pumping. Vacuum-atmosphere interface utilizing a cascade arc discharge was successfully demonstrated and a 175 keV electron beam was successfully propagated from vacuum through such a plasma interface and out into atmospheric pressure. This plasma device also functions as an effective plasma tens. Such a device can be adopted for use in electron beam melting.

Hershcovitch, A.

1995-12-31T23:59:59.000Z

298

Polarimetric performance of a Laue lens gamma-ray CdZnTe focal plane prototype  

SciTech Connect (OSTI)

A gamma-ray telescope mission concept [gamma ray imager (GRI)] based on Laue focusing techniques has been proposed in reply to the European Space Agency call for mission ideas within the framework of the next decade planning (Cosmic Vision 2015-2025). In order to optimize the design of a focal plane for this satellite mission, a CdZnTe detector prototype has been tested at the European Synchrotron Radiation Facility under an {approx}100% polarized gamma-ray beam. The spectroscopic, imaging, and timing performances were studied and in particular its potential as a polarimeter was evaluated. Polarization has been recognized as being a very important observational parameter in high energy astrophysics (>100 keV) and therefore this capability has been specifically included as part of the GRI mission proposal. The prototype detector tested was a 5 mm thick CdZnTe array with an 11x11 active pixel matrix (pixel area of 2.5x2.5 mm{sup 2}). The detector was irradiated by a monochromatic linearly polarized beam with a spot diameter of about 0.5 mm over the energy range between 150 and 750 keV. Polarimetric Q factors of 0.35 and double event relative detection efficiency of 20% were obtained. Further measurements were performed with a copper Laue monochromator crystal placed between the beam and the detector prototype. In this configuration we have demonstrated that a polarized beam does not change its polarization level and direction after undergoing a small angle (<1 deg.) Laue diffraction inside a crystal.

Curado da Silva, R. M. [Departmento de Fisica, Universidade de Coimbra, P-3000 Coimbra (Portugal); Center for Space Radiations, Univesite Catholique de Louvain (Belgium); Caroli, E.; Stephen, J. B.; Schiavone, F.; Donati, A.; Ventura, G. [Istituto di Astrofisica Spaziale e Fisica Cosmica-Bologna, Via Gobetti 101, I-40129 Bologna (Italy); Pisa, A.; Auricchio, N.; Frontera, F. [Dipartimento di Fisica, Universita di Ferrara, Ferrara (Italy); Del Sordo, S. [Istituto di Astrofisica Spaziale e Fisica Cosmica-Palermo, Via Ugo La Malfa 153, 90146 Palermo (Italy); Honkimaeki, V. [European Synchrotron Radiation Facility, Grenoble (France); Trindade, A. M. F. [Departmento de Fisica, Universidade de Coimbra, P-3000 Coimbra (Portugal)

2008-10-15T23:59:59.000Z

299

Application of optical lens of a CD writer for detecting the blood glucose semi-invasively  

SciTech Connect (OSTI)

Recent technological advancements in the photonics industry have led to a resurgence of interest in optical glucose sensing and to realistic progress toward the development of an optical glucose sensor. Such a sensor has the potential to significantly improve the quality of life for the estimated 16 million diabetics in this country by making routine glucose measurements more convenient. Currently over 100 small companies and universities are working to develop noninvasive or minimally invasive glucose sensing technologies, and optical methods play a large role in these efforts. It has become overwhelmingly clear that frequent monitoring and tight control of blood sugar levels are requisite for effective management of Diabetes mellitus and reduction of the complications associated with this disease. The pain and trouble associated with current “finger-stick” methods for blood glucose monitoring result in decreased patient compliance and a failure to control blood sugar levels. Thus, the development of a convenient noninvasive blood glucose monitor holds the potential to significantly reduce the morbidity and mortality associated with Diabetes. A method and apparatus for noninvasive measurement of blood glucose concentration based on transilluminated laser beam via the Index Finger has been reported in this paper. This method depends on photodiode based laser operating at 632.8 nm wavelength. During measurement, the index finger is inserted into the glucose sensing unit, the transilluminated optical signal is converted into an electrical signal, compared with the reference electrical signal, and the obtained difference signal is processed by signal processing unit which presents the results in the form of blood glucose concentration. This method would enable the monitoring blood glucose level of the diabetic patient continuously, safely and noninvasively.

Meshram, N. D., E-mail: meshramnileshsd@gmail.com [Mathuradas Mohota College of Sciences, Nagpur-440009 (India); Dahikar, P. B., E-mail: pbdahikar@rediffmail.com [Kamla Nehru Mahavidyalaya, Sakkardara Square, Nagpur-440009 (India)

2014-10-15T23:59:59.000Z

300

Simulations of the SLAC Plasma Lens Shinichi Masuda \\Lambda and Pisin Chen y  

E-Print Network [OSTI]

between n p =n b = 0:1 and 100. The original bunch size is 3 and 5 ¯m in radius. Due to plasma focusing return current renders the plasma focusing effect suppressed when the plasma density further increases

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Evaporation of Water from Particles in the Aerodynamic Lens Inlet: An  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicy and Assistance100 tonusing ARM dataMentoringExperimental

302

Light emitting diode package element with internal meniscus for bubble free lens placement  

DOE Patents [OSTI]

A method for fabricating a light emitting diode (LED) package comprising providing an LED chip and covering at least part of the LED chip with a liquid encapsulant having a radius of curvature. An optical element is provided having a bottom surface with at least a portion having a radius of curvature larger than the liquid encapsulant. The larger radius of curvature portion of the optical element is brought into contact with the liquid encapsulant. The optical element is then moved closer to the LED chip, growing the contact area between said optical element and said liquid encapsulant. The liquid encapsulant is then cured. A light emitting diode comprising a substrate with an LED chip mounted to it. A meniscus ring is on the substrate around the LED chip with the meniscus ring having a meniscus holding feature. An inner encapsulant is provided over the LED chip with the inner encapsulant having a contacting surface on the substrate, with the meniscus holding feature which defines the edge of the contacting surface. An optical element is included having a bottom surface with at least a portion that is concave. The optical element is arranged on the substrate with the concave portion over the LED chip. A contacting encapsulant is included between the inner encapsulant and optical element.

Tarsa, Eric; Yuan, Thomas C.; Becerra, Maryanne; Yadev, Praveen

2010-09-28T23:59:59.000Z

303

Beating the Bubble: Using Kinematic Triggering in the Bubble Lens for Acquiring Small, Dense Targets  

E-Print Network [OSTI]

Targets Martez E. Mott and Jacob O. Wobbrock The Information School | DUB Group University of Washington or distributed for profit or commercial advantage and that copies bear this notice and the full citation

Wobbrock, Jacob O.

304

Cooperative management and its effects on shade tree diversity, soil properties and ecosystem services of coffee plantations in western El Salvador  

E-Print Network [OSTI]

Windbreak trees ha -1 Organic matter (%) pH Total acidity (and increased pH, to be associated with higher tree density.Ca. Higher tree richness was associated with higher soil pH,

Méndez, V. Ernesto; Shapiro, Elizabeth N.; Gilbert, Gregory S.

2009-01-01T23:59:59.000Z

305

FIA-12-0039- In the Matter of National Security Archive  

Broader source: Energy.gov [DOE]

The Appellant documents related to the “First Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer” held in Helsinki, Finland on May 2-5, 1989. OIR forwarded the request to the Office of Policy and International Affairs (OPIA) and the Executive Secretariat (ES) for a search of their records.

306

DEPARTMENT OF HEALTH &. HUMAN SERVICES Public Health Service National Institutes of Health  

E-Print Network [OSTI]

DEPARTMENT OF HEALTH &. HUMAN SERVICES Public Health Service National Institutes of Health of Intramural Research, OD Dr. James F. Taylor, Director Office ofAnimal Care and Use, OIR, OD Director, Division ofOccupational Health and Safety (DOHS) Scientific Resources, ORS Subject: Medical Surveillance of

Bandettini, Peter A.

307

Skin cancer detection by oblique-incidence diffuse reflectance spectroscopy  

E-Print Network [OSTI]

Skin cancer is the most common form of cancer and it is on the rise. If skin cancer is diagnosed early enough, the survival rate is close to 90%. Oblique-incidence diffuse reflectance (OIR) spectroscopy offers a technology that may be used...

Smith, Elizabeth Brooks

2009-05-15T23:59:59.000Z

308

ALDO LEOPOLD: .. . wildlife once fed us and shaped our culture.  

E-Print Network [OSTI]

conduct thinning operations in nearby pine plantations. Fortunately, no calamities have occurred, and Mike

309

A cataract is a clouding or darkening that develops in the eye's lens, which is normally clear. It can form when cells in the lens become damaged and clump together, blocking light from entering the  

E-Print Network [OSTI]

health by limiting exposure to smoke and air pollution, exercising regularly, eating healthy foods is fairly uncomplicated and recovery is fast. It is performed on an outpatient basis and has a 95% success-ups are important to ensure that your vision is clear and your eyes remain healthy. You can help maintain your eye

310

THE FAINTEST RADIO SOURCE YET: EXPANDED VERY LARGE ARRAY OBSERVATIONS OF THE GRAVITATIONAL LENS SDSS J1004+4112  

SciTech Connect (OSTI)

We present new radio observations of the large-separation gravitationally lensed quasar SDSS J1004+4112, taken in a total of 6 hr of observations with the Expanded Very Large Array. The maps reach a thermal noise level of approximately 4 {mu}Jy. We detect four of the five lensed images at the 15-35 {mu}Jy level, representing a source of intrinsic flux density, after allowing for lensing magnification, of about 1 {mu}Jy, intrinsically probably the faintest radio source yet detected. This reinforces the utility of gravitational lensing in potentially allowing us to study nJy-level sources before the advent of the Square Kilometre Array. In an optical observation taken three months after the radio observation, image C is the brightest image, whereas the radio map shows flux density ratios consistent with previous optical observations. Future observations separated by a time delay will give the intrinsic flux ratios of the images in this source.

Jackson, N. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Alan Turing Building, Oxford Road, Manchester M13 9PL (United Kingdom)

2011-09-20T23:59:59.000Z

311

A review of "The Correspondence of John Cotton Junior" by Sheila McIntryre and Len Travers, ed.  

E-Print Network [OSTI]

provides an useful primary resource for early American studies. The uncommonly lavish layout of this handsome volume aptly suits the editors? exemplary dedication to and execution of their editorial undertaking?a model of its kind. Michael Armstrong...-Roche. Cervantes? Epic Novel: Empire, Religion, and the Dream Life of Heroes in Persiles. Toronto: University of Toronto Press, 2009. Xiv + 406 pp. $70.00. Review by ignacio l?pez alemany, university of north carolina, greensboro. Michael Armstrong-Roche quite...

Scheik, William

2010-01-01T23:59:59.000Z

312

April 1, 2000 / Vol. 25, No. 7 / OPTICS LETTERS 439 Anomaly in a high-numerical-aperture diffractive focusing lens  

E-Print Network [OSTI]

^x; sxsy 1 1 sz ^y; 2sx ^z . (2) The apodization factor Av is based on conservation of energy size at the focus reaches a minimum at a numerical aperture of 0.5 and then increases significantly lenses with low rather than high NA's can be analyzed by use of standard scalar theory, for which

Friesem, Asher A.

313

Retinal ganglion cell survival and axon regeneration in WldS transgenic rats after optic nerve crush and lens injury  

E-Print Network [OSTI]

Abstract Background We have previously shown that the slow Wallerian degeneration mutation, whilst delaying axonal degeneration after optic nerve crush, does not protect retinal ganglion cell (RGC) bodies in adult rats. To test the effects of a...

Lorber, Barbara; Tassoni, Alessia; Bull, Natalie D; Moschos, Marilita M; Martin, Keith R

2012-06-06T23:59:59.000Z

314

An Explanation for the Lack of a Dilute Freshwater Lens in Unconfined Tropical Coastal Aquifers: Yucatan Example  

E-Print Network [OSTI]

by the Bay of Campeche, on the north by the Gulf of Mexico and on the east by the Caribbean Sea of Geological Societies Transactions, v. 56, p. 785-792. 785 #12;Stoessell and Coke Figure 1. Yucatan Peninsula

Stoessell, Ronald K.

315

A crossfield literature review of the HIV and AIDS impacts on the Ugandan workforce through the HRD lens  

E-Print Network [OSTI]

, INGO effectiveness assessments, development of instruments for measuring outputs upon the workforce environment, and workforce development. 7 Under President Yoweri Museveni?s leadership, economic development could be jump started by the national...-accessible text data; 2) to understand what the workforce demographics are after 30 years of HIV and AIDS activities from mainly INGOs, FBOs, and CBOs; 3) to determine what change agents (ABC National AIDS program, INGOs, FBOs, CBOs), leaderships (clergy...

Howard, Debra Mayes

2005-02-17T23:59:59.000Z

316

PIER Through a Critical Lens: An Evaluation of a Student-Initiated, Student-Run Outreach Program  

E-Print Network [OSTI]

that existed for the project. After graduation, studentspost-graduation 69 intentions. However, project staff do notgraduation decisions, and the particular aspects of the PIER project

Saelua, Natasha Autasi

2012-01-01T23:59:59.000Z

317

Genetic Analysis of Bread Making Quality Stability in Wheat using a Halberd X Len Recombinant Inbred Line Population  

E-Print Network [OSTI]

Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Co-Chairs of Committee, Dirk B. Hays Amir M. H. Ibrahim Committee Members, Joseph Awika Russell Jessup Head..., Purbanchal University, Nepal Co-Chairs of Advisory Committee: Dr. Dirk B. Hays Dr. Amir M. H. Ibrahim Wheat grain quality has a complex genetic architecture heavily influenced by the growing environment. Consistency in wheat quality...

Poudel, Ashima

2012-07-16T23:59:59.000Z

318

Comment on 'A planar refractive x-ray lens made of nanocrystalline diamond'[J. Appl. Phys. 108, 123107 (2010)  

SciTech Connect (OSTI)

The material LuAG (lutetium aluminium garnet) has been confused with LAG (lanthanum aluminium garnet). In general, aluminium garnet phases only occur for the smaller trivalent metal cations and LAG is not known to have been synthesized.

Kroon, R. E. [Department of Physics (IB51), University of the Free State, Box 339, Bloemfontein (South Africa)] [Department of Physics (IB51), University of the Free State, Box 339, Bloemfontein (South Africa)

2013-05-28T23:59:59.000Z

319

The Journey from Classical to Quantum Thinking: An Analysis of Student Understanding Through the Lens of Atomic Spectra  

E-Print Network [OSTI]

electron  and   the  excess  enrgy  is  used  as  goes  electron  and  the  excess   enrgy  is  used  as  goes  

Rao, Sandhya Kolla

2012-01-01T23:59:59.000Z

320

The Journey from Classical to Quantum Thinking: An Analysis of Student Understanding Through the Lens of Atomic Spectra  

E-Print Network [OSTI]

certain  aspects  of  atomic  absorption  of  light  in  About  Atomic  Absorption  of  Light……………..…………. …  71  questions  about  atomic   absorption  and  emission  of  

Rao, Sandhya Kolla

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

44.3 / S. Valyukh 44.3: A Liquid Crystal Lens with Non-uniform Anchoring Energy  

E-Print Network [OSTI]

and eyeglasses applications. Due to the property to be controlled with an external electrical field, liquid

322

Mon. Not. R. Astron. Soc. 338, 10841088 (2003) B0850+054: a new gravitational lens system from CLASS  

E-Print Network [OSTI]

CLASS A. D. Biggs,1,2 D. Rusin,3,4 I. W. A. Browne,1 A. G. de Bruyn,5,6 N. J. Jackson,1 L. V. E parameters H0 (e.g. Biggs et al. 1999; Fassnacht et al. 1999; Koopmans et al. 2000), 0 and 0 (e.g. Kochanek.7 arcsec, with a flux density ratio of 6 : 1. Here we present E-mail: biggs@jive.nl 1 We define

Myers, Steven T.

323

A Phenomenological Look at Adult English-Language Development Through the Lens of Students' Sense-Making Practices  

E-Print Network [OSTI]

representation.     Phenomenology  and  the  Cognitive  Ponty,  M.    (1945).     Phenomenology  of  perception.    A.    (1970).     Phenomenology  and  social  relations.    

Segade, Gabriela

2011-01-01T23:59:59.000Z

324

A Phenomenological Look at Adult English-Language Development Through the Lens of Students' Sense-Making Practices  

E-Print Network [OSTI]

crude”  in  an  earlier   example  because  she  had  thought  she  was  speaking  English  in  Mexico  and  

Segade, Gabriela

2011-01-01T23:59:59.000Z

325

Fostering the Next Generation --The Hakubi Project  

E-Print Network [OSTI]

of stable local livelihoods in Tropical Asia. Recently, large- scale oil palm plantations in Tropical Asia have been spreading widely across borders. Palm oil produced from these plantations is exported

Takada, Shoji

326

1yale environmental NEWS 1yale environmental NEWS spring 2004  

E-Print Network [OSTI]

loggers and wildfires and by their con- version, primarily to oil palm plantations. Thirty-eight percent of remaining accessible lowland, and because of widespread conver- sion of forest to oil palm plantations

327

197Ann. For. Sci. 61 (2004) 197202 INRA, EDP Sciences, 2004  

E-Print Network [OSTI]

plantations and abandoned coppice forest in central Japan. Species diversity and richness did not differ-rotation plantations, but was similar to that in abandoned coppice forest. These results indicate that, in particular

Paris-Sud XI, Université de

328

E-print Network Topics: J  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

subjects japanese coniferous plantation japanese coronary artery japanese countryside landscape japanese cypress chamaecyparis japanese cypress forest japanese diabetes mellitus...

329

BIOTROPICA 38(4): 443445 2006 10.1111/j.1744-7429.2006.00177.x The Uncertain Future of Tropical Forest Species1  

E-Print Network [OSTI]

scales: the production of sugarcane for ethanol, oil palm for palm oil, and plantation trees for wood

Bermingham, Eldredge

330

This Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon.  

E-Print Network [OSTI]

plantations in the current day Surinam. They represent an original ethnic group with a highly blended culture

Paris-Sud XI, Université de

331

Woody Biomass for Energy in Michigan TOPICS FOR DISCUSSION AND INQUIRY EXTENSION BULLETIN E-3095  

E-Print Network [OSTI]

, and possibly for plants that produce transportation fuels and chemicals. Establishing plantations requires necessary. Sometimes money must be spent to protect the plantation from insects, diseases, deer, or other damaging agents. Total plantation establishment costs may run about $600 to $900 per acre3 or more

332

The future of South East Asian rainforests in a changing landscape and climate  

E-Print Network [OSTI]

surrounding forest. Some of the key findings are: that conversion from forest to oil palm plantation can have if - and how - oil palm plantations can be made more biodiversity friendly, whilst two contributed articles gases and energy in Borneo: comparing fluxes over oil palm plantations and a rainforest, D Fowler, E

Zürich, Universität

333

,"_' ",',-i_~ :FORESTRY AND LOGGING  

E-Print Network [OSTI]

":~I> ", .' '. ,"_' ",',-i_~ . :FORESTRY AND LOGGING Hcscarch on Plantation Species A Positive in plantation forestry. par- ticularly in the tropics and the Southern Hemisphere. in the past 30 years plantation forestry. Indeed, one could list many exam- ples of such problems that have plagued exotic

335

Imaging Spectrometer Designs Utilizing Immersed Gratings With Accessible Entrance Slit  

DOE Patents [OSTI]

A compact imaging spectrometer comprises an entrance slit, a catadioptric lens with a mirrored surface, a grating, and a detector array. The entrance slit directs light to the mirrored surface of the catadioptric lens; the mirrored surface reflects the light back through the lens to the grating. The grating receives the light from the catadioptric lens and diffracts the light to the lens away from the mirrored surface. The lens transmits the light and focuses it onto the detector array.

Chrisp, Michael P. (Danville, CA); Lerner, Scott A. (Corvallis, OR)

2006-03-21T23:59:59.000Z

336

fMRI representation of transient onsets and adaptation  

E-Print Network [OSTI]

Sharp PG-210U projector (Camus, WA) fitted with a zoom lens,Sharp PG-210U projector (Camus, WA) fitted with a zoom lens

Tuan, August Saul

2006-01-01T23:59:59.000Z

337

Concentric multi-reflection lenses for ultra-compact imaging systems  

E-Print Network [OSTI]

near infrared to long wave infrared broadband four- reflectionreflection CMR lens. This lens design is proposed for use with dual-band near- infrared (

Tremblay, Eric Julian

2008-01-01T23:59:59.000Z

338

Fast Correction Optics to Reduce Chromatic Aberrations in Longitudinally Compressed Ion Beams  

E-Print Network [OSTI]

FAST CORRECTION OPTICS TO REDUCE CHROMATIC ABERRATIONS INrecent work on fast correction optics that remove the time-EINZEL LENS CORRECTION OPTIC An electrostatic, Einzel lens [

Lidia, S.M.

2009-01-01T23:59:59.000Z

339

Einfhrung in PROLOG IV Beispiele fr Listen in PROLOG  

E-Print Network [OSTI]

Liste hat die Länge 1 + len(R ), wobei len(R ) die Länge ihres Rumpfes ist. Diese Definition liefert uns

Nejdl, Wolfgang

340

IS THE SUN LIGHTER THAN THE EARTH? ISOTOPIC CO IN THE PHOTOSPHERE, VIEWED THROUGH THE LENS OF THREE-DIMENSIONAL SPECTRUM SYNTHESIS  

SciTech Connect (OSTI)

We consider the formation of solar infrared (2-6 {mu}m) rovibrational bands of carbon monoxide (CO) in CO5BOLD 3D convection models, with the aim of refining abundances of the heavy isotopes of carbon ({sup 13}C) and oxygen ({sup 18}O, {sup 17}O), to compare with direct capture measurements of solar wind light ions by the Genesis Discovery Mission. We find that previous, mainly 1D, analyses were systematically biased toward lower isotopic ratios (e.g., R {sub 23} {identical_to} {sup 12}C/{sup 13}C), suggesting an isotopically 'heavy' Sun contrary to accepted fractionation processes that were thought to have operated in the primitive solar nebula. The new 3D ratios for {sup 13}C and {sup 18}O are R {sub 23} = 91.4 {+-} 1.3 (R {sub Circled-Plus} = 89.2) and R {sub 68} = 511 {+-} 10 (R {sub Circled-Plus} = 499), where the uncertainties are 1{sigma} and 'optimistic'. We also obtained R {sub 67} = 2738 {+-} 118 (R {sub Circled-Plus} = 2632), but we caution that the observed {sup 12}C{sup 17}O features are extremely weak. The new solar ratios for the oxygen isotopes fall between the terrestrial values and those reported by Genesis (R {sub 68} = 530, R {sub 67} = 2798), although including both within 2{sigma} error flags, and go in the direction favoring recent theories for the oxygen isotope composition of Ca-Al inclusions in primitive meteorites. While not a major focus of this work, we derive an oxygen abundance, {epsilon}{sub O} {approx} 603 {+-} 9 ppm (relative to hydrogen; log {epsilon} {approx} 8.78 on the H = 12 scale). The fact that the Sun is likely lighter than the Earth, isotopically speaking, removes the necessity of invoking exotic fractionation processes during the early construction of the inner solar system.

Ayres, Thomas R. [Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309 (United States)] [Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309 (United States); Lyons, J. R. [Department of Earth and Space Sciences, University of California, Los Angeles, CA (United States)] [Department of Earth and Space Sciences, University of California, Los Angeles, CA (United States); Ludwig, H.-G.; Caffau, E. [Zentrum fuer Astronomie der Universitaet Heidelberg, Heidelberg (Germany)] [Zentrum fuer Astronomie der Universitaet Heidelberg, Heidelberg (Germany); Wedemeyer-Boehm, S., E-mail: Thomas.Ayres@Colorado.edu [Institute of Theoretical Astrophysics, University of Oslo, Oslo (Norway)

2013-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

Indoor air pollution from biomass fuels and respiratoryTuberculosis and Indoor Biomass and Kerosene Use in Nepal: AR.D. Retherford, and K.R. Smith, Biomass cooking fuels and

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

342

G429 Clothing/Equipment/Supply List Field clothes, field boots, and field equipment, including geologic hammer and hand lens, will be needed on  

E-Print Network [OSTI]

G429 Clothing/Equipment/Supply List Clothing Field clothes, field boots, and field equipment field day, a windbreaker over a sweater or sweatshirt is a more versatile field dress than a heavy Water shoes (tevas or old tennis shoes) for use in G429e and/or recreation o Flip flops (optional

Polly, David

343

G433 Clothing/Equipment/Supply List Field clothes, field boots, and field equipment, including geologic hammer and hand lens, will be needed on  

E-Print Network [OSTI]

G433 Clothing/Equipment/Supply List Clothing Field clothes, field boots, and field equipment field day, a windbreaker over a sweater or sweatshirt is a more versatile field dress than a heavy Water shoes (tevas or old tennis shoes) o Flip flops (optional) for shower area o Scree Gaitors

Polly, David

344

G429 Clothing/Equipment/Supply List Field clothes, field boots, and field equipment, including geologic hammer and hand lens, will be needed on  

E-Print Network [OSTI]

G429 Clothing/Equipment/Supply List Clothing Field clothes, field boots, and field equipment field day, a windbreaker over a sweater or sweatshirt is a more versatile field dress than a heavy Water shoes (tevas or old tennis shoes) o Flip flops (optional) for shower area o Scree Gaitors

Polly, David

345

G433 Clothing/Equipment/Supply List Field clothes, field boots, and field equipment, including geologic hammer and hand lens, will be needed on the  

E-Print Network [OSTI]

G433 Clothing/Equipment/Supply List Clothing Field clothes, field boots, and field equipment field day, a windbreaker over a sweater or sweatshirt is a more versatile field dress than a heavy Water shoes (tevas or old tennis shoes) o Flip flops (optional) for shower area o Scree Gaitors

Polly, David

346

Alameda de Len No. 2 Altos Col. Centro C.P. 68 000 Oaxaca, Mxico Tel. 51 6 32 11 Ext. 0560 y 0561.  

E-Print Network [OSTI]

Internacional de los Afrodescendientes, se hace urgente el reconocimiento de los derechos de los pueblos negros decisiones particulares de autoadscripción; asimismo los pueblos negros y afros deben tener participación en libre mercado, cuando la historia nos #12;Alameda de León No. 2 Altos Col. Centro C.P. 68 000 Oaxaca

Islas, León

347

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

use of biomass and kerosene cookstoves in women in Pokharause of biomass and kerosene cookstoves and risk of TB.use of biomass and kerosene cookstoves and risk of pre-

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

348

L'aven en el coneixement de l'Univers no seria possible sense l'aven de l'en-  

E-Print Network [OSTI]

'exploració del sistema solar és arribar al planeta Mart. Per tal que això sigui possible sense posar en perill la radiació espacial i la solar, així com la concentració d'hidrogen o aigua sota la superfície propera. També instruments cal afegir el coet, la font d'energia, els sistemes de control de terra i el sofisticat siste- ma

Politècnica de Catalunya, Universitat

349

In vitro interactions of the small heat shock protein chaperone human [alpha]B-crystallin with its physiological substrates in the lens [gamma]-crystallins  

E-Print Network [OSTI]

The passive chaperone a-crystallin, a small heat shock protein, is one of the ubiquitous crystallins in vertebrate lenses, along with the [beta][gamma]-crystallins. It is composed of two subunits (~ 20 kDa) aA- and ...

Acosta-Sampson, Ligia I

2010-01-01T23:59:59.000Z

350

Environmental Literacy and Sustainability Values: A Content Analysis of National EE Frameworks and State Standards through the Lens of the Earth Charter  

E-Print Network [OSTI]

Mainstream scientists have grave concerns regarding unsustainable lifestyles in a world with finite resources. Lack of environmental literacy, sustainability values, connectedness to nature and environmental education as a core subject need...

Singleton, Julie

2012-02-14T23:59:59.000Z

351

General contractor’s project of projects – a meta-project: understanding the new paradigm and its implications through the lens of entropy  

E-Print Network [OSTI]

&M University, 3137 TAMU, College Station, TX 77843-3137, USA b Department of Construction Science, Aalto University, P. O. Box 12100, FIN-02150, Espoo, Finland Published online: 17 Mar 2014. To cite this article: José L. Fernández-Solís, Zofia K. Rybkowski... 77843- 3137, USA; bDepartment of Construction Science, Aalto University, P. O. Box 12100, FIN-02150, Espoo, Finland (Received 20 June 2012; accepted 15 October 2013) Why do Koskela and others argue that the underlying theory of project management (PM...

Fernandez-Solis, Jose; Rybkowski, Zofia K.; Xiao, Chao; Lü, Xiaoshu; Chae, Lee Seok

2015-02-08T23:59:59.000Z

352

High-pressure arcs as vacuum-atmosphere interface and plasma lens for nonvacuum electron beam welding machines, electron beam melting, and nonvacuum ion material modification  

SciTech Connect (OSTI)

Atmospheric pressure plasmas can be used to provide a vacuum-atmosphere interface as an alternative to differential pumping. Vacuum-atmosphere interface utilizing a cascade arc discharge was successfully demonstrated and a 175 keV electron beam was successfully propagated from vacuum through such a plasma interface and out into atmospheric pressure. Included in the article are a theoretical framework, experimental results, and possible applications for this novel interface. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

Hershcovitch, A. [AGS Department, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)] [AGS Department, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)

1995-11-01T23:59:59.000Z

353

A Configurable Single-Axis, Multi-Parameter Lens Camera Morgan McGuire John F. Hughes Wojciech Matusik Hanspeter Pfister Frdo Durand Shree Nayar  

E-Print Network [OSTI]

for the increased light. One of the f /1.4 sensors is focussed on the background and one on the actor. An optimizer. This allows multiple video sensors to share an optical center. At each sensor, we vary the imaging parameters a small number of single-axis sensors for a specific application. We believe SAMPL is the first to support

Durand, Frédo

354

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

K.R. , Biofuels, Air Pollution and Health: A Global Review.K.R. , Biofuels, Air Pollution and Health: A Global Review.K.R. , Biofuels, Air Pollution and Health: A Global Review.

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

355

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

flues and promotion of semi-gasifier or gaseous stove, couldstoves, such as semi-gasifier stoves or other cleanerbiomass stoves, such as semi-gasifier stoves, or those with

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

356

Pre-clinical Measures of Eye Damage (Lens Opacity), Case-control Study of Tuberculosis, and Indicators of Indoor Air Pollution from Biomass Smoke  

E-Print Network [OSTI]

other cleaner burning fuels (biogas or LPG) for cooking andstove with improved stove or biogas can be suggested, if thegaseous-burning-fuel stove (biogas, liquefied petroleum gas,

Pokhrel, Amod Kumar

2010-01-01T23:59:59.000Z

357

MEMBRES DU CONSEIL D'ADMINISTRATION DE L'ENS Dcret n 2013-1140 du 9 dcembre 2013 relatif l'cole normale suprieure  

E-Print Network [OSTI]

Paris-XI Mathilde LEMOINE, Directeur des études économiques et de la stratégie marchés d'HSBC France

Gutkin, Boris

358

Through the Lens of Pater-Americanism: A Comparative Analysis of the Eisenhower Administration's Perception of Guatemala and Bolivia, 1953 and 1954  

E-Print Network [OSTI]

This thesis examines the diverging responses of the Eisenhower Administration in the US to the Arbenz government in Guatemala and the Paz government in Bolivia in 1953 and 1954. This divergence occurred in spite of strong similarities between...

Moulton, Aaron Coy

2009-06-06T23:59:59.000Z

359

Optical/IR interferometry: concepts, terminology and the current status  

E-Print Network [OSTI]

the small scale structure of the source — will be difficult to make. The first and last of these points are, at some level, in conflict and so it should not be a surprise that the majority of OIR interferometric studies have not generated de- tailed high... further second-generation instruments are in various stages of development: GRAVITY, a K band astrometric/imaging combiner that has been designed with a strong Galactic Centre science focus and MATISSE a 4-way combiner upgrade for MIDI. In contrast...

Haniff, Chris

2014-01-01T23:59:59.000Z

360

E-Print Network 3.0 - ao eucalyptus spp Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

chinensis) and Eucalyptus (Eucalyptus spp.). Bocconia was encountered across 209 ha of alien forest... , Eucalyptus plantations, farm lots, gulches and native forest including...

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

High Tonnage Forest Biomass Production Systems from Southern...  

Broader source: Energy.gov (indexed) [DOE]

Biomass Program Review High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations DE-EE0001036 S. Taylor (Auburn University), R. Rummer (USDA Forest...

362

"Space of time or distance of place": Presbyterian diffusion in south-western Scotland and Ulster, 1603-1690.  

E-Print Network [OSTI]

??A number of research projects on migration flows between Scotland and Ireland during the Plantation era have been conducted by social and religious historians. By… (more)

Vann, Barry Aron

2006-01-01T23:59:59.000Z

363

E-Print Network 3.0 - archaeology reveals secrets Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Slavery and Material Culture Patricia Samford Summary: Plantation in James City County. The site, unearthed in 1970 during an archaeological survey, revealed... The...

364

area san juan: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in computer science declined by 10 Akl, Robert 147 Monitoring, modeling and predicting timber plantations dynamics. The case of San Juan de la Costa (Chile) Physics Websites...

365

Mapping the Potential for Biofuel Production on Marginal Lands: Differences in Definitions, Data and Models across Scales  

E-Print Network [OSTI]

land for plantation of Jatropha curcas as feedstocks forMarginal chinensis, 3. Jatropha grow energy plants, or landand economic constraints Jatropha curcas Marginal land ?land

Lewis, Sarah M

2014-01-01T23:59:59.000Z

366

GENERAL TECHNICAL REPORT PSW-GTR-245 Forest Fuel Characterization Using Direct  

E-Print Network [OSTI]

for the plantation was 53.65 ton/ha; wood fuels accounted for 70% of this accumulation with 39.62 tons

Standiford, Richard B.

367

E-Print Network 3.0 - atlantic forest reserve Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

plantations, nearly all in the Atlantic Forest biome. Trends... ... Source: Louisiana Forest Products Development Center Collection: Renewable Energy 11 Journal of Tropical...

368

Development of a Single-Pass Cut-and-Chip Harvest System for...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

SRC Woody Crop Header High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations High Tonnage Forest Biomass Production Systems from Southern Pine...

369

E-Print Network 3.0 - alluvial saline sodic Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Geosciences 19 Groundwater and soil chemical changes under phreatophytic tree plantations Summary: -ecosystem continuum, and (3) explored the impacts of these...

370

E-Print Network 3.0 - acacia mangium pseudosamenea Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in West-Kalimantan, Summary: in hilly or remote areas and are very limited in extent. Oil palm and Acacia mangium plantations devel... ) Akacia Acacia mangium Shading Albizia...

371

E-Print Network 3.0 - antimicrobiana pronares informe Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Catarina Collection: Environmental Sciences and Ecology 3 Inter-American Development Bank Sustainable Development Department Summary: of commercial plantations (Mexico) PRONARE...

372

E-Print Network 3.0 - ambiente tropical um Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: and composition of fruit-feeding butterflies in tropical plantation forests. Biodiversity and Conservation. DOI... for biodiversity conservation in the tropics. Tree...

373

DOE'S ENERGY DATA BASE (EDB) VERSUS OTHER ENERGY-RELATED DATA BASES: A COMPARATIVE ANALYSIS  

E-Print Network [OSTI]

Methane (or Biogas) Production from Agricultural Hastes ThisAGRICULTURAL WASTES f HANI MANURES I BIOMASS BlOf ( BIO* BIOMASS PLANTATIONS FIGURE 2 BIOGAS

Robinson, J.

2010-01-01T23:59:59.000Z

374

E-Print Network 3.0 - alternata strawberry pathotype Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

UK. In 1997 a second new pathotype, later known as E5... spacing in short rotation coppice plantations was thought to provide ideal conditions for these ... Source: Forest...

375

PALM startup /shutdown guide If you are the first user of the day  

E-Print Network [OSTI]

if you use oil lens. 3. Exit PALM Robo software. Log off computer. 4. Do NOT turn mercury lamp away. 2. Use and lens paper with Sparkle to clean the objective lens if you oil lens. 3. Exit PALM RoboPALM startup /shutdown guide If you are the first user of the day 1. Turn on the two power strips

Goldman, Robert D.

376

JOURNAL DE PHYSIQUE Colloque C6, suppl6rnent au nO1O, Tome 44, octobre 1983 page C6-565  

E-Print Network [OSTI]

difficult to improve the detection sensitivi- ty of apparatus. Howere, thermal lens spectrophotometry could

Paris-Sud XI, Université de

377

Approximate String Joins in a Database (Almost) for Free Luis Gravano Panagiotis G. Ipeirotis H. V. Jagadish  

E-Print Network [OSTI]

AND R 2 A j Q.P os ­ R 1 A i Q.P os # k AND LEN(R 1 .A i ) ­ LEN(R 2 .A j ) # k AND LEN(R 2 .A j ) ­ LEN(R

378

Methanol production from Eucalyptus wood chips. Working document I. The Florida Eucalyptus energy farm: silvicultural methods and considerations  

SciTech Connect (OSTI)

The silvicultural matrix within which the nation's first large scale wood energy plantation will develop is described in detail. The relevant literature reviewed is identified and distilled. The plantation history, site preparation, planting, species selection, maintenance and management, harvesting, and the Eucalyptus biomass production estimates are presented.

Fishkind, H.H.

1982-04-01T23:59:59.000Z

379

www.ccsenet.org/jsd Journal of Sustainable Development Vol. 4, No. 3; June 2011 ISSN 1913-9063 E-ISSN 1913-9071152  

E-Print Network [OSTI]

Group and the Government of Finland Abstract Green Resources AS, a plantation, carbon offset, forest AS is a plantation, carbon offset, forest products, and renewable energy company. The company operates in Tanzania (Green Resources [GRAS], 2011). Being involved in carbon offset programs and in the generation

380

Modest carbon price could save Borneo forests: study Reuters, 4 June 2009 -Tropical forests in Borneo under threat of conversion to palm oil  

E-Print Network [OSTI]

in Borneo under threat of conversion to palm oil plantations could be more profitable left standing threat of being converted to oil palm plantations. "They are not meant to be clearing forest for palm oil development. It's pretty clear that forests are being felled for oil palm," said Venter, a conservation

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Plant Pathology (2009) 58, 642654 Doi: 10.1111/j.1365-3059.2009.02087.x 2009 Dept of Primary Industries & Fisheries, State of Queensland, Australia  

E-Print Network [OSTI]

Industries & Fisheries, State of Queensland, Australia 642 Journal compilation © 2009 BSPP Blackwell Department of Primary Industries, New South Wales 2119, Australia; and d Forestry and Agriculture plantations to meet consumer demands. The hardwood plantation area has expanded rapidly in Australia in recent

382

Bioenergy and land-use competition in Northeast Brazil  

E-Print Network [OSTI]

Bioenergy and land-use competition in Northeast Brazil Christian Azar Department of Physical policies are warranted if use of degraded lands for bioenergy plantations is desired. 1. Introduction There are two main categories of bioenergy: residues and dedicated plantations. In this paper, we exclusively

383

Navjot's nightmare revisited: logging, agriculture, and biodiversity  

E-Print Network [OSTI]

forests. Conversely, conversion of primary or logged forests to plantation crops, such as oil palm, causes the biodiversity of this region. Our analysis also suggests that, because South- east Asian forests are tightly and replaced with a nonforest landcover (e.g., agriculture including oil palm and rubber, timber plantations

Vermont, University of

384

Ann. For. Sci. 64 (2007) 419429 Available online at: c INRA, EDP Sciences, 2007 www.afs-journal.org  

E-Print Network [OSTI]

and fungi in a natural forest stand and a Norway spruce plantation* Bernd ZELLERa**, Claude BRECHETb , Jean, mycorrhizas and mycelium were determined in two forest stands, a natural forest and a Norway spruce plantation.afs-journal.org DOI: 10.1051/forest:2007019 Original article 13 C and 15 N isotopic fractionation in trees, soils

Boyer, Edmond

385

Correspondence Non-codingRNA  

E-Print Network [OSTI]

and is eliminated." Henry Harris University of Oxford, UK. henry.harris@path.ox.ac.uk Oil-palm concerns in Brazilian protection (APPs). One proposal is that plantations of oil palm (Elaeis guineensis), which are rapidly. Trends Ecol. Evol. 23, 538­545; 2008) shows that oil-palm plantations have a considerable impact

Lees, Alexander

386

Trading Water for Carbon with Biological Carbon Sequestration  

E-Print Network [OSTI]

Trading Water for Carbon with Biological Carbon Sequestration Robert B. Jackson,1 * Esteban G. Farley,1 David C. le Maitre,5 Bruce A. McCarl,6 Brian C. Murray7 Carbon sequestration strategies plantations feature prominently among tools for carbon sequestration (1­8). Plantations typi- cally combine

Nacional de San Luis, Universidad

387

Approximate String Joins in a Database (Almost) for Free Luis Gravano Panagiotis G. Ipeirotis H. V. Jagadish  

E-Print Network [OSTI]

1AiQ.Pos - R2AjQ.Pos k AND R2AjQ.Pos - R1AiQ.Pos k AND LEN(R1.Ai) - LEN(R2.Aj) k AND LEN(R2.Aj) - LEN(R1.Ai) k GROUP BY R1.A0, R2.A0, R1.Ai, R2.Aj HAVING COUNT(*) LEN(R1.Ai)+q-1 - k*q AND COUNT(*) LEN(R2.Aj)+q-1 - k*q AND edit distance(R1.A

Gravano, Luis

388

Final Report to DOE’s Office of Science (BER) submitted by Ram Oren (PI) of DE-FG02-00ER63015 (ended on 09/14/2009) entitled “Controls of Net Ecosystem Exchange at an Old Field, a Pine Plantation, & a Hardwood Forest under Identical Climatic & Edaphic Conditions”  

SciTech Connect (OSTI)

The project yielded papers on fluxes (energy, water and carbon dioxide)between each ecosystem and the atmosphere, and explained the temporal dynamics of fluxes based on intrinsic (physiology, canopy leaf area and structure) and extrinsic (atmospheric and edaphic conditions). Comparisons between any two of the ecosystems, and among all three followed, attributing differences in behavior to different patterns of phenology and differential sensitivities to soil and atmospheric humidity. Finally, data from one-to-three of the ecosystems (incorporated into FluxNet data archive) were used in syntheses across AmeriFlux sites and even more broadly across FluxNet sites.

Oren, Ram; Oishi, AC; Palmroth, Sari; Butnor, JR; Johnsen, KH

2014-03-17T23:59:59.000Z

389

SOFTWARE STANDARDS IN CHEMISTRY. PROCEEDINGS OF THE CONFERENCE HELD AT UNIVERSITY OF UTAH, JULY 25-27, 1979. NRCC PROCEEDINGS NO. 7  

E-Print Network [OSTI]

SUBROUTINE AA08(NSP,HEADER,LGH,KEY,PR)'# SYSCOM: INTEGERK,NSP,LEN,KEY,LGH,PR CHARACTER: HEADER(l) REAL FMT(2) DATA FIF(PR.LE.OTPRMX) LEN MINO(LGH,IOCHR:) LINE OUTPUTTER AND

Harris, Frank E.

2011-01-01T23:59:59.000Z

390

Seeing inside chips and cells: High-resolution subsurface imaging of integrated circuits, quantum dots and subcellular structures  

E-Print Network [OSTI]

techniques for IC failure analysis ­ solid immersion lens microscopy and solid immersion lens thermography improvement from >5µm to a resolution of 1.3µm, representing the best subsurface thermography to date

391

Johanna Nelson  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Polyester film Polymer separator Electrode Current collector Li-metal X - r a y s condenser lens pinhole sample zone plate objective lens 5 Transmission X-ray microscopy * 30...

392

Active, polymer-based composite material implementing simple shear  

E-Print Network [OSTI]

A novel active material for controllable, high work density applications was designed, fabricated, analyzed, and tested. This active material uses a lens-shaped element to implement simple shear motion with gas pressure actuation. The lens element...

Lee, Sang Jin

2009-05-15T23:59:59.000Z

393

E-Print Network 3.0 - air mixture glow Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

lens lens razor to optical fiber to camera air He He flow glow turbulent mixing l agar d x z L... -size atmospheric-pressure glow-discharge plasma, or plasma ... Source:...

394

E-Print Network 3.0 - advanced age-related cataracts Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the normal... OPHTHALMOL VIS SCI 21:186-190, 1982.) Key words: Phase separation, X-irradiation, lens, cataract The phase... separation of lens cell cytoplasm may represent an...

395

aplicada lama residual: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lpez-Snchez, Maite 18 LENS-AIDED MULTI-ANGLE SPECTROSCOPY (LAMAS) REVEALS SMALL-SCALE OUTFLOW STRUCTURE IN QUASARS Physics Websites Summary: LENS-AIDED MULTI-ANGLE...

396

Microsoft PowerPoint - 4_JOHN_BALLARD_MARY_MCCDONNELL_NRC DOE...  

National Nuclear Security Administration (NNSA)

Len Myers Special Requests (301) 903-2180 Len.Myers@nnsa.doe.gov Patricia Smith NRC Reconciliation (301) 903-6860 PatriciaR.Smith@nnsa.doe.gov Reasons to Call NMMSS -...

397

Microsoft PowerPoint - 7_MARY_MCCDONNELL_JOHN_BALLARD_Tips for...  

National Nuclear Security Administration (NNSA)

Len Myers Special Requests (301) 903-2180 Len.Myers@nnsa.doe.gov Patricia Smith NRC Reconciliation (301) 903-6860 PatriciaR.Smith@nnsa.doe.gov Tips for Success ...

398

Size-selected Metal Cluster Deposition on Oxide Surfaces: Impact Dynamics and Supported Cluster Chemistry  

E-Print Network [OSTI]

Lens Quadrupole Ion Guide 3 Focusing Lens Deposition Stage Electron Multiplier Isolation Valve4 Au3 Au2 Au Constant signal = constant sticking coefficient ~1.0 No shifts with cluster size

Anderson, Scott L.

399

Article The Structure of the Cataract-Causing P23T Mutant of Human  

E-Print Network [OSTI]

Crystallins are major proteins of the eye lens and essential for lens transparency. Mutations and aging of crystallins cause cataracts, the predominant cause of blindness in the world. In human ?D-crystallin, the P23T ...

Wang, Yongting

400

Du 12 au 16 novembre, l'esprit de cration d'entreprises soufflera une nouvelle fois sur l'Universit de Genve (UNIGE), sous l'gide de la Semaine mondiale de l'en-  

E-Print Network [OSTI]

valorisation des décou- vertes académiques auprès des entreprises, qui pilote l'opération. Son directeur projets en démarrage. D'ailleurs, confrontés CoMMUNIqUé DE PrESSE Genève | 6 novembre 2012 la semaine de l

Loewith, Robbie

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

G429/429e/G429g Clothing, Equipment, Supply List Field clothes, field boots, and field equipment, including geologic hammer and hand lens, will be needed  

E-Print Network [OSTI]

G429/429e/G429g Clothing, Equipment, Supply List Clothing Field clothes, field boots, and field than a heavy jacket over just a t- shirt. At least two pairs of hiking or work boots are strongly suit (optional) o Water shoes (tevas or old tennis shoes) for use in G429e and/or recreation o Flip

Polly, David

402

"As I delve further into the complexities of the Canadian Healthcare System through JSGS's comprehensive MHA program, I find myself looking at its political, social and financial elements through a new lens. This new program is innovative, exciting  

E-Print Network [OSTI]

and complexities of a dynamic health care system. The online MHA graduate program is administered through 817 - Health Policy - The course reviews the historical development of the Canadian health care system, pharmaceuticals, regional health boards, and health reform in a comparative context will be examined. Continued

Peak, Derek

403

"As I delve further into the complexities of the Canadian Healthcare System through JSGS's comprehensive MHA program, I find myself looking at its political, social and financial elements through a new lens. This new program is innovative, exciting  

E-Print Network [OSTI]

and complexities of a dynamic health care system. The online MHA graduate program is administered through issues and health care practices. > JSGS 814 - Biostatistics for Public Health - This course health care system and its supporting principles, governance structures and fiscal arrangements

Peak, Derek

404

Yields of ten and eleven year-old hybrid poplars in the north central United States. Final report  

SciTech Connect (OSTI)

The objective of this research is to determine commercially attainable biomass yields given the best site tending possible under the constraints of this extensive network. Biomass yields are reported from the best clones planted in one acre blocks on 8 sites over the four states. Biomass yields are presented of short rotation intensively cultured poplar plantations established in Wisconsin, Minnesota, North and South Dakota during 1987--88. It was reported at that time that the mean annual increment had not peaked in the plantations. Growth measurements were continued through the 1997 growing season when the plantations had completed their 10th and 11th growing season.

Netzer, D.; Tolsted, D.

1998-12-31T23:59:59.000Z

405

ACADEMIE DE MONTPELLIER UNIVERSITE MONTPELLIER II  

E-Print Network [OSTI]

'articles, je l'en remercie. Je remercie également Marguerite Godard, Rosy Bedini, Xavier Lenoir, Olivier Alard

Paris-Sud XI, Université de

406

Elec 331 -Sensors & Statistics Sensing Modes  

E-Print Network [OSTI]

shift, etc. Example · Interfering / Modifying ­ Dirt on the lens ­ Coughing ­ Work boots ­ Bent needle

Pulfrey, David L.

407

Michigan Technological University Office of Institutional Equity  

E-Print Network [OSTI]

effects of mitigating measures except ordinary eyeglasses or contact lens. In the past, the U.S. Supreme

408

63.1: Invited Paper: Liquid Crystal Devices Based on Photo-Alignment and Photo-Patterning Materials  

E-Print Network [OSTI]

vision, 2D/3D switchable LCD, and eyeglasses are envisaged. The focal distance of the lens was varied

409

A Low-Cost Quantitative Absorption Spectrophotometer Daniel R. Albert, Michael A. Todt, H. Floyd Davis*  

E-Print Network [OSTI]

is constructed using Lego® blocks, a light emitting diode, and optical elements including a lens, slide

Davis, H. Floyd

410

An analysis of the properties of VAS satellite soundings  

E-Print Network [OSTI]

rawinsonde stations participating in AVE/VAS II (6-7 March 1982). STATION NO. 8 ASILENE, TERAS 5 MAIICH l982 f120 CMT SS. 0 TIME MIN CNTC1 HEIOHT CPN PRES Me TEMP Cslf PT OIR SPEEO OC O OO C OO M/SEC 5 CCNP M/SEC V COMP M/SEC POT 7 OO 5 E... POT 1 OO R ME RTO Cll/ lf0 RH PCT RANCE AE RN CO 0 0 09. 9 09. 9 0. 3 I. o f 7 1. 5 3. 4 ~ . 3 5. 0 5. 8 S. e 7. 5 8, 5 9. 5 IO. ~ II. 5 12. 5 13. 5 I ~ . 8 IS. D I7. I IS. O 19. 8 2 I. I 22. 5 14. 2 15. 9 17 d 20. ~ 3 I . 5 34. 0 38. 3...

Rhodes, Robert Charles

2012-06-07T23:59:59.000Z

411

Effects of site preparation for afforestation on soil properties and greenhouse gas emission   

E-Print Network [OSTI]

Forest plantations in the UK are often established on seasonally waterlogged peaty gley soils which often require site preparation (drainage and mounding) to lower the water table and prepare planting positions. Substantial ...

Mojeremane, Witness

2009-01-01T23:59:59.000Z

412

Visit of Prof Mario Rajchenberg to FABI Prepared by Dr Martin Coetzee  

E-Print Network [OSTI]

- CONICET) in Argentina. He has established his research group in Esquel (Chubut, Patagonia) where he of native and introduced native and plantation forests of the northern Patagonia, and the study of the 'blue

413

Arnold Schwarzenegger BIOMASS TO ENERGY  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor BIOMASS TO ENERGY: FOREST MANAGEMENT FOR WILDFIRE REDUCTION, ENERGY to treatment prescriptions and anticipated outputs of sawlogs and biomass fuel? How many individual operations biomass fuel removed. Typically in plantations. 50% No harvest treatment

414

Radial Glial Cell Line C6-R Integrates Preferentially in Adult White Matter and Facilitates Migration of Coimplanted Neurons in Vivo  

E-Print Network [OSTI]

larger volume than neurons alone or neurons coimplanted with fibro- blasts. In brains preinjured migration that may facilitate development of experimental models for neural trans- plantation cerebrovascular disease, degenerative dementias, cerebellar degeneration, and traumatic injuries of the head

Fischer, Itzhak

415

E-Print Network 3.0 - area surrounding suez Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the barbed wire fences surrounding a large plantation... from oilseed crops raised on small-scale family farms in semi-arid areas of the Nordeste. To grasp... -wide problems...

416

Local and remote climate impacts from expansion of woody biomass for bioenergy feedstock in the Southeastern US  

E-Print Network [OSTI]

as a feedstock for a bioenergy and bioproducts industry: TheCooling the greenhouse with bioenergy. Nature, 353, 11–12.F. , and C. Azar, 2009: Bioenergy plantations or long- term

Murphy, L.N.

2014-01-01T23:59:59.000Z

417

Biogeochemistry of the Western Gulf Coastal Plain as Impacted by Forest Management  

E-Print Network [OSTI]

Plantation forestry is central to supplying the global demand for forest products and sustainable production will rely on information regarding the effects of disturbance on soil biogeochemistry. The extent of ecosystem disturbance will dictate...

Foote, Julie

2014-01-29T23:59:59.000Z

418

The Red Squirrel (Sciurus vulgaris L.) in relation to its food resource   

E-Print Network [OSTI]

1. A study of the ecology of the native red squirrel (Sciurus vulgaris leucorus) was carried out in a mature Scots pine (Pinus sylvestris) plantation in East Scotland. 2. The aims of this study were:- 1)To determine the ...

Tittensor, Andrew M

419

Professor David Pimentel Cornell University  

E-Print Network [OSTI]

recognized by palm oil producersii . The growing world bioenergy-related market for palm oil is a major part with palm oil plantations on thick tropical peat are particularly colossal. A major recent study estimated

Patzek, Tadeusz W.

420

ESC Member Publications for Calendar years 2008 to 2011 Note that ESC faculty members are bolded and ESC supported graduate students are  

E-Print Network [OSTI]

. Mires and Peat 8: Art. 7. (Online: http://www.mires-and- peat.net/map08/map_08_07.htm). #12;Chimner, R.R. Webster. 2011. Plantations for bioenergy: Principles for maintaining biodiversity in intensively managed

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Breaking news: Biological control agent for Thaumastocoris peregrinus to be released in South Africa  

E-Print Network [OSTI]

milestone in terms of ensuring sustainable plantation forestry in South Africa was safe to release in South Africa as a biological control agent. The release strategy for C. noackae in South Africa must still be finalized. But

422

Working Papers in Trade and Development  

E-Print Network [OSTI]

that the underlying causes of deforestation in Indonesia are complex, and cover various aspects of market failure, deforestation, plantation, mining, climate change JEL classification: Q23, Q54, Q56, Q58 #12;1 Forest Land Use

423

E-Print Network 3.0 - areas stei romania Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Markets 16-17 September 2008, Timisoara, Romania Summary: , Romania Change in annual forest area, 1990-2000 -5 -4 -3 -2 -1 0 1 2 3 Millionhectares Natural Plantation... ,...

424

E-Print Network 3.0 - alder tree labiate Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Fertilization on the Early Growth of Red Alder... Plantations By Kevin R. Brown, Ph.D., R.P. Bio. and Paul J. Courtin, M.F., R.P.F. KEYWORDS: red alder... .R and P.J....

425

The role of iron oxyhydroxides in phosphorus chemistry of some East Texas forest soils  

E-Print Network [OSTI]

Forest soil phosphorus (P) chemical behavior was evaluated in some mid-rotation fertilized loblolly pine (Pinus taeda L.) plantations in East Texas, that differed in their site drainage characteristics. Forest floor mass and carbon content...

Hass, Amir

2006-10-30T23:59:59.000Z

426

Supplementary Material Cover Sheet1 Temporal Variations of Organic Composition in the Tropical and Marine Atmosphere  

E-Print Network [OSTI]

of oil palm plantations. The situation in Jambi mirrors the magnitude of proposed oil palm expansion are rampant throughout Sumatra, especially in the central and southern regions. As the price of palm oil has

Meskhidze, Nicholas

427

Humans Altering the Water Cycle GTN-Hydrology Meeting  

E-Print Network [OSTI]

· Positive effects: water for irrigation, industry, and domestic purposes; flood control; hydroelectricity · Forest plantations · Hydroelectric power facilities · Water transfer schemes · Sea wall construction #12

Columbia University

428

Insidious Island Invasion: An exploration of Falcataria moluccana stand ecology  

E-Print Network [OSTI]

New Zealand Journal of Ecology (1997) 21:1-16. APPENDIX A:plantation forestry. ” Forest Ecology and Management (2006)Seychelles. ” Functional Ecology (2008) 22:359- Little, E.L.

Minnich, Amanda

2009-01-01T23:59:59.000Z

429

20-23 avril 2009, Garoua, Cameroun 1 L. SEINY-BOUKAR, P. BOUMARD (diteurs scientifiques), 2010.  

E-Print Network [OSTI]

gestion des forêts naturelles et l'encouragement des plantations d'acacias Régis PELTIER*, Oumarou PALOU (qui produit la gomme dure de haute qualité) constituent une population très différente de celles des

Boyer, Edmond

430

E-Print Network 3.0 - areas da floresta Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ribeiro Jr, J. Barlow, T. A. S. vila-Pires, M. Hoogmoed, and C. A. Peres. 2007. The biodiversity value of primary, secondary and plantation Summary: threatened by deforestation. O...

431

E-Print Network 3.0 - argentinean eucalyptus grandis Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

JACQUES RANGER*, RICHARD Summary: . (1993) observed that heavy applications of fertilizer in a plantation of Eucalyptus grandis W. Hill ex... ) 2.9 0.4 6.8 1.5 1.0 Eucalyptus...

432

South African Journal of Botany 2004, 70(2): 241248 Printed in South Africa --All rights reserved  

E-Print Network [OSTI]

was observed in most plantations. The disease symptoms included tip die- back, coppice failure and stem cankers cankers and coppice failure of E. grandis in Florida (Barnard et al. 1987) and in Australia, B. ribis

433

E-Print Network 3.0 - accumulate transgenic residues Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Medicine 35 AN ABSTRACT OF THE THESIS OF Stephen P. DiFazio for the degree of Doctor of Philosophy in Forest Science presented Summary: Plantations: Implications for Transgenic...

434

E-Print Network 3.0 - aboveground carbon gain Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

soil carbon... crops Short-rotation woody crops Tree plantations Hybrid poplar Soil carbon sequestration a b s t r a c... t The potential for soil carbon (C) sequestration...

435

E-Print Network 3.0 - aboveground carbon storage Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

soil carbon... crops Short-rotation woody crops Tree plantations Hybrid poplar Soil carbon sequestration a b s t r a c... t The potential for soil carbon (C) sequestration...

436

DOE'S ENERGY DATA BASE (EDB) VERSUS OTHER ENERGY-RELATED DATA BASES: A COMPARATIVE ANALYSIS  

E-Print Network [OSTI]

PLANTATIONS FIGURE 2 BIOGAS PROCESS TL'BIOGAS _ANAERQBICf o r Other Data Bases >BIOGAS/TI,DE,ID BIO(W)GAS/TI,DE,IDSEARCHES Methane (or Biogas) Production from Agricultural

Robinson, J.

2010-01-01T23:59:59.000Z

437

Risk-mapping the potential impact of wind damage to European forests   

E-Print Network [OSTI]

European forests are noteworthy both in their size and in their commercial potential. The move towards uniform plantations of equal-age and equally spaced trees has resulted in an increased level of damage occurring to forest stands during storm...

Bragg, Alan M

2012-11-29T23:59:59.000Z

438

Responses of soil microbial and nematode communities to aluminum toxicity in vegetated oil-shale-waste lands  

E-Print Network [OSTI]

Responses of soil microbial and nematode communities to aluminum toxicity in vegetated oil-shale and total Al concentrations showed a significant decrease after planting S. cumini plantation onto the shale

Neher, Deborah A.

439

Preliminary Functional-Structural Modeling on Poplar (Salicaceae) Dongxiang Liu1  

E-Print Network [OSTI]

. It is cultivated in plantations not only for paper, wood products and energy, but also for soil erosion control [1 of poplar at growing season [6]. These models are helpful to understand crop production and management

Paris-Sud XI, Université de

440

Biomass fuel from woody crops for electric power generation  

SciTech Connect (OSTI)

This report discusses the biologic, environmental, economic, and operational issues associated with growing wood crops in managed plantations. Information on plantation productivity, environmental issues and impacts, and costs is drawn from DOE`s Biofuels Feedstock Development as well as commercial operations in the US and elsewhere. The particular experiences of three countries--Brazil, the Philippines, and Hawaii (US)--are discussed in considerable detail.

Perlack, R.D.; Wright, L.L.; Huston, M.A.; Schramm, W.E.

1995-06-22T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Light absorption cell combining variable path and length pump  

DOE Patents [OSTI]

A device for use in making spectrophotometric measurements of fluid samples. In particular, the device is a measurement cell containing a movable and a fixed lens with a sample of the fluid therebetween and through which light shines. The cell is connected to a source of light and a spectrophotometer via optic fibers. Movement of the lens varies the path length and also pumps the fluid into and out of the cell. Unidirectional inlet and exit valves cooperate with the movable lens to assure a one-way flow of fluid through the cell. A linear stepper motor controls the movement of the lens and cycles it from a first position closer to the fixed lens and a second position farther from the fixed lens, preferably at least 10 times per minute for a nearly continuous stream of absorption spectrum data.

Prather, William S. (2419 Dickey Rd., Augusta, GA 30906)

1993-01-01T23:59:59.000Z

442

Light absorption cell combining variable path and length pump  

DOE Patents [OSTI]

A device is described for use in making spectrophotometric measurements of fluid samples. In particular, the device is a measurement cell containing a movable and a fixed lens with a sample of the fluid there between and through which light shines. The cell is connected to a source of light and a spectrophotometer via optic fibers. Movement of the lens varies the path length and also pumps the fluid into and out of the cell. Unidirectional inlet and exit valves cooperate with the movable lens to assure a one-way flow of fluid through the cell. A linear stepper motor controls the movement of the lens and cycles it from a first position closer to the fixed lens and a second position farther from the fixed lens, preferably at least 10 times per minute for a nearly continuous stream of absorption spectrum data. 2 figures.

Prather, W.S.

1993-12-07T23:59:59.000Z

443

Effects of fluoride emissions from a modern primary aluminum smelter on a local population of white-tailed deer (Odocoileus virginianus)  

SciTech Connect (OSTI)

The influence of fluoride emissions from a modern aluminum smelter on concentrations of skeletal fluoride and dental fluorosis in a resident population of white-tailed deer was studied. The smelter was located on Mount Holly Plantation in South Carolina, and concentrations of skeletal fluoride in the deer collected at Mount Holly increased approximately five-fold 3 yr after the operation began. Increases in skeletal fluoride of less than two-fold were observed in deer obtained from Medway Plantation which has its nearest boundary 1.6 km from the smelter site. No dental fluorosis was observed in deer collected at Medway Plantation, but mild dental fluorosis was observed in a significant number of deer collected at Mount Holly Plantation. The dental fluorosis that was observed was not associated with incisor wear or with fluoride-induced molar wear. Osteofluorosis of mandibles or metacarpals was not observed in any of the deer obtained from either plantation. The data obtained from this study indicated that the presence of a modern aluminum smelter caused a detectable increase in concentration of skeletal fluoride in the resident population of white-tailed deer, but that no adverse health effects were seen.

Suttie, J.S.; Dickie, R.; Clay, A.B.; Nielsen, P.; Mahan, W.E.; Baumann, D.P.; Hamilton, R.J.

1987-01-01T23:59:59.000Z

444

Environmental enhancement using short-rotation woody crops and perennial grasses as alternative agricultural crops  

SciTech Connect (OSTI)

Short-rotation woody crops and perennial grasses are grown as biomass feedstocks for energy and fiber. When replacing traditional row crops on similar lands, these alternative crops can provide multiple environmental benefits in addition to enhancing rural economies and providing valuable feedstock resources. The Department of Energy is supporting research to address how these crops can provide environmental benefits to soil, water and native wildlife species in addition to providing bioenergy feedstocks. Research is underway to address the potential for biomass crops to provide soil conservation and water quality improvements in crop settings. Replacement of traditional erosive row crops with biomass crops on marginal lands and establishment of biomass plantations as filter strips adjacent to streams and wetlands are being studied. The habitat value of different biomass crops for selected wildlife species is also under study. To date, these studies have shown that in comparison with row crops biomass plantings of both grass and tree crops increased biodiversity of birds; however, the habitat value of tree plantations is not equivalent to natural forests. The effects on native wildlife of establishing multiple plantations across a landscape are being studied. Combining findings on wildlife use of individual plantations with information on the cumulative effects of multiple plantations on wildlife populations can provide guidance for establishing and managing biomass crops to enhance biodiversity while providing biomass feedstocks. Data from site-specific environmental studies can provide input for evaluation of the probable effects of large-scale plantings at both landscape and regional levels of resolution.

Tolbert, V.R. [Oak Ridge National Lab., TN (United States); Schiller, A. [Oak Ridge Inst. for Science and Education, TN (United States)

1995-12-31T23:59:59.000Z

445

What Does a Scattering Pattern Tell US?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Space sample light image Image Space lens Angular Space Q 4p sin(q) l Fourier Transform Scattering Pattern Fourier Transform Phase Problem Scattering Pattern Fourier...

446

Concentric multi-reflection lenses for ultra-compact imaging systems  

E-Print Network [OSTI]

figure of the annular asp heric surface we e es, us a lesstoolmarks on the asph m s) heric side of th lens. he Figure

Tremblay, Eric Julian

2008-01-01T23:59:59.000Z

447

Science, Optics and You: Microscopes and Crystals  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

glass), and the field microscope. (The hand lens and field microscope are in your Science, Optics and You package.) Activity 14 provides instructions for making different...

448

As technology and generations in medical education change, what remains is the intersection between educator, learners, assessment and context  

E-Print Network [OSTI]

2012). Learning management system. Retrieved Januarywiki/Learning_management_system Wikipedia. (2013).with learning management systems: A lens of critical success

Azzam, Amin

2013-01-01T23:59:59.000Z

449

E-Print Network 3.0 - aureus staphylococcus epidermidis Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

UR 165 Collection: Biology and Medicine 45 The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm by Summary: by Staphylococcus...

450

E-Print Network 3.0 - aureus biofilm formation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Environmental Sciences and Ecology 15 The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm by Summary: The Effect of Nondialyzable...

451

E-Print Network 3.0 - acidic eukaryotic biofilms Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Materials Science 58 The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm by Summary: The Effect of Nondialyzable...

452

E-Print Network 3.0 - alamar blue biofilm Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Environmental Sciences and Ecology 12 The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm by Summary: The Effect of Nondialyzable...

453

E-Print Network 3.0 - albicans biofilm formation Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Biology and Medicine ; Biotechnology 63 The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm by Summary: The Effect of Nondialyzable...

454

E-Print Network 3.0 - anti-atherosclerotic anti-inflammatory...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

; Environmental Sciences and Ecology 63 The Effect of Nondialyzable Material (NDM) Cranberry Extract on Formation of Contact Lens Biofilm by Summary: . Bodet C, Chandad F,...

455

E-Print Network 3.0 - approximately constrained elastic Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Programming for Autonomous Robots (SIMPAR 2010), Summary: Rob Series Elastic Robot Arm for Simulation and Control Thomas Lens, Jurgen Kunz, and Oskar von Stryk......

456

E-Print Network 3.0 - ambiental diversidade cultural Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Felipe Andrs Len Contrera; Astrid Matos Peixoto Kleinert Summary: para buscar recursos alimentares que as abelhas executam um servio importante ao ambiente. Voando de......

457

aporte del caracol: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

por Islas, Len 5 Semirido: un desafo para la CienciaSemirido: un desafo para la Ciencia del Suelodel Suelo Environmental Sciences and Ecology Websites Summary: mostr...

458

Organizing the 'living Dead': Civil Rights in Oklahoma City and Tulsa, Oklahoma, 1954-1964.  

E-Print Network [OSTI]

??By providing an in-depth examination of the civil rights movements in Oklahoma City and Tulsa, Oklahoma through the lens of the black newspapers in each… (more)

Baehler, Joel Edward

2012-01-01T23:59:59.000Z

459

Development of a Process Planning Module for Metal Additive Manufacturing.  

E-Print Network [OSTI]

??Producing metallic parts using Laser Engineered Net Shaping (LENS™) additive manufacturing allows for a wide range of flexibility and customization while reducing waste material compared… (more)

Chernow, Eric

2013-01-01T23:59:59.000Z

460

2.71 Optics, Fall 2001  

E-Print Network [OSTI]

Introduction to optical science with elementary engineering applications. Geometrical optics: ray-tracing, aberrations, lens design, apertures and stops, radiometry and photometry. Wave optics: basic electrodynamics, ...

Barbastathis, George

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

E-Print Network 3.0 - assisted deposition method Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the individual deposit compositions within a stepped material... the effects of LENS processing parameters on dilution in simple, single-layer ... Source: DuPont, John N. -...

462

Optics and Diagnostics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 14 | Next | Last Back to Index Optics Optics processing of Target Wedged Focus Lens into cleaningcoating frame. Photo Number: 2013-048765...

463

E-Print Network 3.0 - airborne allergic contact Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Items that "contact" the eye or promote irritation (i.e. foreign objects... , chemicals, etc.) Contact lens products, eye drops or eye ointments Anatomical abnormalities of...

464

DNAPL invasion into a partially saturated dead-end fracture  

E-Print Network [OSTI]

Mobilization in Rock Fractures, Water Resources Research,of DNAPL trapped in dead-end fractures, Geophysical Researchpartially saturated dead-end fracture and a DNAPL lens above

Su, Grace W.; Javandel, Iraj

2008-01-01T23:59:59.000Z

465

An Exploration of the Effects of Language on the Orchestral Trombone Sound in France, Germany, and the United States.  

E-Print Network [OSTI]

??The orchestral trombone sound of France, Germany, and the United States was analyzed through the lens of language. A thorough investigation of the characteristic sounds… (more)

Mounger, Christine

2012-01-01T23:59:59.000Z

466

External Leadership Development Resources | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

sector workforce. Leadership Blogs, Newsletters and Twitter Feeds * Brainpickings - Brain Pickings is a human-powered discovery engine for interestingness, a subjective lens on...

467

Scattering Solar Thermal Concentrators  

Broader source: Energy.gov (indexed) [DOE]

is a rendering of a scattering solar concentrator. Light collected by a cylindrical Fresnel lens is focused within a curved glass "guide" sheet, where it is redirected into...

468

E-Print Network 3.0 - advanced water-cooled phosphoric Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

With Enhanced Summary: . Steckl, Fellow, IEEE Abstract--A phosphor-converted light-emitting diode ( LED) luminaire featuring... , a polymer hemispherical shell lens with...

469

E-Print Network 3.0 - activated gdca3gao3bo34 phosphors Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

With Enhanced Summary: . Steckl, Fellow, IEEE Abstract--A phosphor-converted light-emitting diode ( LED) luminaire featuring... , a polymer hemispherical shell lens with...

470

avanzada mediante trasplante: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

de la Ciencia Programa Islas, Len 109 Acerca de la UNAM Sitios web UNAM Coordinacion Investigacion Coordinacin de la Investigacin Cientfica Biology and Medicine Websites...

471

Microsoft PowerPoint - 2_JIM_CRABTREE_NMMSS_2014 NMMSS staff...  

National Nuclear Security Administration (NNSA)

Staff AT THE MEETING 6 Len Myers Special Reports , Financial Reports, Data Analysis Pat Smith Reporting and reconciliation for NRC facilities Karen Antizzo NMMSS daily operations:...

472

E-Print Network 3.0 - adverse health outcomes Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Statistics, University of Missouri - Kansas City Collection: Mathematics 3 Health Care through the Lens of Risk Call for Papers for a four part special issue of...

473

E-Print Network 3.0 - antiknock ratings Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

lens and C-mount extension tubes are ... Source: Wooldridge, Margaret S. - Departments of Mechanical Engineering & Aerospace Engineering, University of Michigan Collection:...

474

Graphene-based tunable hyperbolic metamaterials and enhanced near-field absorption.  

E-Print Network [OSTI]

and M. Hanbucken, “A graphene electron lens,” Appl. Phys.based on plasmonic resonant graphene sheets,” J. Appl. Phys.polaritons in monolayer graphene sheet arrays,” Phys. Rev.

Othman, Mohamed A K; Guclu, Caner; Capolino, Filippo

2013-01-01T23:59:59.000Z

475

A genetic algorithm for the non-parametric inversion of strong lensing systems  

E-Print Network [OSTI]

We present a non-parametric technique to infer the projected-mass distribution of a gravitational lens system with multiple strong-lensed images. The technique involves a dynamic grid in the lens plane on which the mass distribution of the lens is approximated by a sum of basis functions, one per grid cell. We used the projected mass densities of Plummer spheres as basis functions. A genetic algorithm then determines the mass distribution of the lens by forcing images of a single source, projected back onto the source plane, to coincide as well as possible. Averaging several tens of solutions removes the random fluctuations that are introduced by the reproduction process of genomes in the genetic algorithm and highlights those features common to all solutions. Given the positions of the images and the redshifts of the sources and the lens, we show that the mass of a gravitational lens can be retrieved with an accuracy of a few percent and that, if the sources sufficiently cover the caustics, the mass distribution of the gravitational lens can also be reliably retrieved. A major advantage of the algorithm is that it makes full use of the information contained in the radial images, unlike methods that minimise the residuals of the lens equation, and is thus able to accurately reconstruct also the inner parts of the lens.

J. Liesenborgs; S. De Rijcke; H. Dejonghe

2006-01-06T23:59:59.000Z

476

Kenya's forests: going up in smoke  

SciTech Connect (OSTI)

Closed forest and commercially valuable woodland account for at most 11,406 square miles in Kenya (about 5.2% of the country's area). Plantation forests, mainly of exotic conifers, cover more than 550 square miles, and it is hoped that exotic plantation species will entirely replace dependence on the indigenous forests for pulp, sawn timber and other roundwood. However, reliance on charcoal as a fuel has led to widespread deforestation, particularly along highways and within 20 miles of towns and major villages. Deforestation is likely to increase with increasing population pressure.

Burnett, G.W.

1985-01-01T23:59:59.000Z

477

Introduction to OpenGL Prof. George Wolberg  

E-Print Network [OSTI]

of center of lens - Orientation ·Lens ·Film size ·Orientation of film plane #12;2 7Angel: Interactive graphics (structures) ·X Window System - DEC/MIT effort - Client-server architecture with graphics ·PEX

Wolberg, George

478

Delivering pump light to a laser gain element while maintaining access to the laser beam  

DOE Patents [OSTI]

A lens duct is used for pump delivery and the laser beam is accessed through an additional component called the intermediate beam extractor which can be implemented as part of the gain element, part of the lens duct or a separate component entirely.

Beach, Raymond J. (Livermore, CA); Honea, Eric C. (Sunol, CA); Payne, Stephen A. (Castro Valley, CA)

2001-01-01T23:59:59.000Z

479

Compact Catadioptric Imaging Spectrometer Designs Utilizing Immersed Gratings  

DOE Patents [OSTI]

An imaging spectrometer comprising an entrance slit for directing light, a lens that receives said light and reflects said light, a grating that defracts said light back onto said lens which focuses said light, and a detector array that receives said focused light. In one embodiment the grating has rulings immersed into a germanium surface.

Lerner, Scott A. (Livermore, CA)

2006-02-28T23:59:59.000Z

480

Characterization of the unfolding, refolding, and aggregation pathways of two protein implicated in cataractogenesis : human gamma D and human gamma S crystallin  

E-Print Network [OSTI]

Human [gamma]D crystallin (H[gamma]D-Crys) and human [gamma]S crystallin (H[gamma]S-Crys), are major proteins of the human eye lens and are components of cataracts. H[gamma]D-Crys is expressed early in life in the lens ...

Kosinski-Collins, Melissa Sue, 1978-

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "len oir plantat" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Concentrating collectors  

SciTech Connect (OSTI)

Selected specifications from sixteen concentrating collector manufacturers are tabulated. Eleven are linear parabolic trough collectors, and the others include slats, cylindrical trough, linear Fresnel lens, parabolic cylindrical Fresnel lens, and two point focus parabolic dish collectors. Also included is a brief discussion of the operating temperatures and other design considerations for concentrating collectors. (LEW)

Not Available

1981-06-01T23:59:59.000Z

482

Checkout Expendables Item Price Item Price Item Price  

E-Print Network [OSTI]

$6.00 ft Canned Air $4.00 Hollywood Frost $6.00 ft Lens Solution $3.00 Gel Tube $5.00 ea. Lens Paper.00 Duvetyne $3.50 ft/$10.00/yd Daylight 250w $7.00 1610 $185.00 12" Blk Wrap $25 per roll/$1 ft Daylight 500w

Dyer, Bill

483

Wave optics and image formation in gravitational lensing  

E-Print Network [OSTI]

We discuss image formation in gravitational lensing systems using wave optics. Applying the Fresnel-Kirchhoff diffraction formula to waves scattered by a gravitational potential of a lens object, we demonstrate how images of source objects are obtained directly from wave functions without using a lens equation for gravitational lensing.

Yasusada Nambu

2012-07-30T23:59:59.000Z

484

4D Frequency Analysis of Computational Cameras for  

E-Print Network [OSTI]

input #12;Lattice-focal input #12;All focused image output (automatic) #12;Depth map output (automatic) #12;Standard lens input #12;Lattice-focal input #12;All focused image output (automatic) #12;Depth map output (automatic) #12;Standard lens input #12;Lattice-focal input #12;All focused image output

485

Plasma Sources Science and Technology Plasma Sources Sci. Technol. 23 (2014) 044005 (6pp) doi:10.1088/0963-0252/23/4/044005  

E-Print Network [OSTI]

.1088/0963-0252/23/4/044005 Cross-field plasma lens for focusing of the Hall thruster plume Martin E Griswold, Yevgeny Raitses as a means to focus the thruster plume. In the PL, the plasma is nearly collisionless, with non from its ionization and acceleration using an external plasma lens (PL) to focus the beam after

486

Single element laser beam shaper  

DOE Patents [OSTI]

A single lens laser beam shaper for converting laser beams from any spatial profile to a flat-top or uniform spatial profile. The laser beam shaper includes a lens having two aspheric surfaces. The beam shaper significantly simplifies the overall structure in comparison with conventional 2-element systems and therefore provides great ease in alignment and reduction of cost.

Zhang, Shukui (Yorktown, VA); Michelle D. Shinn (Newport News, VA)

2005-09-13T23:59:59.000Z

487

PLASMA FOCUSING OF HIGH ENERGY DENSITY ELECTRON AND POSITRON BEAMS \\Lambda  

E-Print Network [OSTI]

PLASMA FOCUSING OF HIGH ENERGY DENSITY ELECTRON AND POSITRON BEAMS \\Lambda J.S.T. Ng, P. Chen, W, for the first time, positron beams. We also discuss measure­ ments on plasma lens­induced synchrotron radiation and laser­ and beam­plasma interactions. 1 INTRODUCTION The plasma lens was proposed as a final focusing

488

Introduction to Scientific Computing  

E-Print Network [OSTI]

quotes >>> s = "hello world" >>> print s hello world # single quotes also work >>> s = `hello world' >>> print s hello world >>> s = "12345" >>> len(s) 5 CREATING STRINGS # concatenating two strings >>> "hello " + "world" `hello world' # repeating a string >>> "hello " * 3 `hello hello hello ' STRING OPERATIONS STRING

Haule, Kristjan

489

High resolution x-ray microscope  

SciTech Connect (OSTI)

The authors present x-ray images of grid meshes and biological material obtained using a microspot x-ray tube with a multilayer optic and a 92-element parabolic compound refractive lens (CRL) made of a plastic containing only hydrogen and carbon. Images obtained using this apparatus are compared with those using an area source with a spherical lens and a spherical lens with multilayer condenser. The authors found the best image quality using the multilayer condenser with a parabolic lens, compared to images with a spherical lens and without the multilayer optics. The resolution was measured using a 155-element parabolic CRL and a multilayer condenser with the microspot tube. The experiment demonstrates about 1.1 {mu}m resolution.

Gary, C. K.; Park, H.; Lombardo, L. W.; Piestrup, M. A.; Cremer, J. T.; Pantell, R. H.; Dudchik, Y. I. [Adelphi Technology, Inc. 981-B Industrial Road, San Carlos, California 94070 (United States); Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States); Institute of Applied Physics Problems, Kurchatova 7, Minsk 220064 (Belarus)

2007-04-30T23:59:59.000Z

490

Galactic microlensing with rotating binaries  

E-Print Network [OSTI]

The influence of rotating binary systems on the light curves of galactic microlensing events is studied. Three different rotating binary systems are discussed: a rotating binary lens, a rotating binary source, and the motion of the earth around the sun (parallax effect). The most dramatic effects arise from the motion of a binary lens because of the changes of the caustic structure with time. I discuss when the treatment of a microlensing event with a static binary model is appropriate. It is shown that additional constraints on the unknown physical quantities of the lens system arise from a fit with a rotating binary lens as well as from the earth-around-sun motion. For the DUO#2 event, a fit with a rotating binary lens is presented.

M. Dominik

1997-09-09T23:59:59.000Z

491

MACHO Mass Determination Based on Space Telescope Observation  

E-Print Network [OSTI]

We investigate the possibility of lens mass determination for a caustic crossing microlensing event based on a space telescope observation. We demonstrate that the parallax due to the orbital motion of a space telescope causes a periodic fluctuation of the light curve, from which the lens distance can be derived. Since the proper motion of the lens relative to the source is also measurable for a caustic crossing event, one can find a full solution for microlensing properties of the event, including the lens mass. To determine the lens mass with sufficient accuracy, the light curve near the caustic crossing should be observed within uncertainty of $\\sim$ 1%. We argue that the Hubble Space Telescope observation of the caustic crossing supplied with ground-based observations of the full light curve will enable us to determine the mass of MACHOs, which is crucial for understanding the nature of MACHOs.

Mareki Honma

1999-03-24T23:59:59.000Z

492

Three Gravitational Lenses for the Price of One: Enhanced Strong Lensing Through Galaxy Clustering  

SciTech Connect (OSTI)

We report the serendipitous discovery of two strong gravitational lens candidates (ACS J160919+6532 and ACS J160910+6532) in deep images obtained with the Advanced Camera for Surveys on the Hubble Space Telescope, each less than 40'' from the previously known gravitational lens system CLASS B1608+656. The redshifts of both lens galaxies have been measured with Keck and Gemini: one is a member of a small galaxy group at z {approx} 0.63, which also includes the lensing galaxy in the B1608+656 system, and the second is a member of a foreground group at z {approx} 0.43. By measuring the effective radii and surface brightnesses of the two lens galaxies, we infer their velocity dispersions based on the passively evolving Fundamental Plane (FP) relation. Elliptical isothermal lens mass models are able to explain their image configurations within the lens hypothesis, with a velocity dispersion compatible with that estimated from the FP for a reasonable source-redshift range. Based on the large number of massive early-type galaxies in the field and the number-density of faint blue galaxies, the presence of two additional lens systems around CLASS B1608+656 is not unlikely in hindsight. Gravitational lens galaxies are predominantly early-type galaxies, which are clustered, and the lensed quasar host galaxies are also clustered. Therefore, obtaining deep high-resolution images of the fields around known strong lens systems is an excellent method of enhancing the probability of finding additional strong gravitational lens systems.

Fassnacht, Chris D.; McKean, J.P.; Koopmans, L.V.E.; Treu, T.; Blandford, R.D.; Auger, M.W.; Jeltema, T.E.; Lubin, L.M.; Margoniner, V.E.; Wittman, D.; /UC, Davis

2006-04-03T23:59:59.000Z

493

Rice and Memory in the Age of Enslavement: Atlantic Passages to  

E-Print Network [OSTI]

Rice and Memory in the Age of Enslavement: Atlantic Passages to Suriname Judith Carney This article fact from the era of plantation slavery is that Suriname, about the same territorial size as the state. Slavery in Suriname was notorious for its brutal demands on labor and the attenuated life expectancies

494

Global Consequences of Land Use Jonathan A. Foley,1  

E-Print Network [OSTI]

, and urban areas have expanded in recent decades, accompanied by large increases in energy, water, fiber, water, and shelter to more than six billion people. Global croplands, pastures, plantations trade-offs between imme- diate human needs and maintaining the capacity of the biosphere to provide

Rey Benayas, José María

495

ORIGINAL PAPER Comparison of manure compost and mineral fertilizer  

E-Print Network [OSTI]

ORIGINAL PAPER Comparison of manure compost and mineral fertilizer for hybrid poplar plantation and methods Composted sheep manure (10 and 20 kg/tree) at planting was compared to N and P mineral Contrary to what we expected, compost treatments neither increased root development nor tree water status

Paris-Sud XI, Université de

496

5 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER -FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP  

E-Print Network [OSTI]

as an alternative to fossil fuels, production of its raw material can have a major impact on land, air, and water5 February 2014 SENT TO LSU AGCENTER/LOUISIANA FOREST PRODUCTS DEVELOPMENT CENTER - FOREST SECTOR / FORESTY PRODUCTS INTEREST GROUP Sustainable Poplar Plantation Provides Biomass Feedstock for the Emerging

497

Instructions for use Loss of species diversity impacts on genetic  

E-Print Network [OSTI]

) as a model system · Short Rotation Coppice (SRC) as an energy crop · Phytoremediation to clean up soil for Sustainable Development · In Hokkaido, SRC trial has been initiated by the government · Insect attack is a critical topic for productivity and success of plantation 10/22 @ Sweden @ Sweden Applied use #12;Focal

Tsunogai, Urumu

498

Biogeosciences, 3, 479487, 2006 www.biogeosciences.net/3/479/2006/  

E-Print Network [OSTI]

), N fertilization and poplar genotype on the physical protection of carbon in the mineral soil of Tuscia, Department of Forest Environment and Resources, Via S.Camillo De Lellis, 01100 Viterbo, Italy was stabilized and protected. The choice of species in a plantation, or the effect of global change on species

Paris-Sud XI, Université de

499

Grassland afforestation in Southern South America: Carbon sequestration potential & soil/water costs  

E-Print Network [OSTI]

on field measurements on existing plantations in the Pampas and Patagonia. Four situations were used for regional scaling-up: Patagonia "dry": Patagonia "wet": >500 mm/yr ­ Pines (data from & Jackson 2003) Argentina Brazil Chile Uruguay patagonia pampas campos afforestation foci 0 100 200 300 400

Nacional de San Luis, Universidad

500

132008 USDA Research Forum on Invasive Species DISPERSALAND DYNAMICS OF THE WOODWASP SIREX NOCTILIO IN ARGENTINA  

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population outbreaks. In Patagonia (Southern Argentina), pine trees (mainly Pinus ponderosa) are increasingly ecological and behavioral studies of this forest pest carried out in Patagonia. Our aim is to help increase). Number of attacked trees was estimated through a census of a 70-ha pine plantation in Northwest Patagonia