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Note: This page contains sample records for the topic "mechanics classical mechanics" 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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1

Quantum Mechanical Clock and Classical Relativistic Clock  

E-Print Network [OSTI]

A cyclic nature of quantum mechanical clock is discussed as ``quantization of time." Quantum mechanical clock is seen to be equivalent to the relativistic classical clock.

Hitoshi Kitada

2004-07-08T23:59:59.000Z

2

The equivalence principle in classical mechanics and quantum mechanics  

E-Print Network [OSTI]

We discuss our understanding of the equivalence principle in both classical mechanics and quantum mechanics. We show that not only does the equivalence principle hold for the trajectories of quantum particles in a background gravitational field, but also that it is only because of this that the equivalence principle is even to be expected to hold for classical particles at all.

Philip D. Mannheim

2000-04-03T23:59:59.000Z

3

Topological mechanisms as classical spinor fields  

E-Print Network [OSTI]

A mechanism is a zero-energy motion of a mechanical structure that does not stretch or compress any of its components. Here, we focus on a special class of mechanisms that we dub topological because they are insensitive to smooth changes in material parameters. Topological mechanisms do not arise from local under-coordination, but they can be localized to solitons in the underlying structure. In this letter, we exploit supersymmetry to develop a real-space formalism whereby a topological mechanism can be described as a classical spinor whose real components are the soliton-induced displacement and stress fields. Our analytical approach goes beyond topological band theory by addressing the non-linearity and inhomogeneity of the underlying structure key to the very definition of a mechanism. We apply this general method to an activated mechanism, inspired by the organic molecule polyacetylene, that can propagate down an assembly line without deploying the whole structure.

Vincenzo Vitelli; Nitin Upadhyaya; Bryan Gin-ge Chen

2014-07-11T23:59:59.000Z

4

Wigner spacing distribution in classical mechanics  

E-Print Network [OSTI]

The Wigner spacing distribution has a long and illustrious history in nuclear physics and in the quantum mechanics of classically chaotic systems. In this paper, a long-overlooked connection between the Wigner distribution and classical chaos in two-degree-of-freedom (2D) conservative systems is introduced. In the specific context of fully chaotic 2D systems, the hypothesis that typical pseudotrajectories of a canonical Poincar\\'{e} map have a Wignerian nearest-neighbor spacing distribution (NNSD), is put forward and tested. Employing the 2D circular stadium billiard as a generic test case, the NNSD of a typical pseudotrajectory of the Birkhoff map is shown to be in excellent agreement with the Wigner distribution. The relevance of the higher-order Wigner surmises from random matrix theory are also illustrated.

Jamal Sakhr

2014-07-08T23:59:59.000Z

5

Quantum Mechanics and Discrete Time from "Timeless" Classical Dynamics  

E-Print Network [OSTI]

We study classical Hamiltonian systems in which the intrinsic proper time evolution parameter is related through a probability distribution to the physical time, which is assumed to be discrete. - This is motivated by the ``timeless'' reparametrization invariant model of a relativistic particle with two compactified extradimensions. In this example, discrete physical time is constructed based on quasi-local observables. - Generally, employing the path-integral formulation of classical mechanics developed by Gozzi et al., we show that these deterministic classical systems can be naturally described as unitary quantum mechanical models. The emergent quantum Hamiltonian is derived from the underlying classical one. It is closely related to the Liouville operator. We demonstrate in several examples the necessity of regularization, in order to arrive at quantum models with bounded spectrum and stable groundstate.

H. -T. Elze

2003-07-03T23:59:59.000Z

6

221B Lecture Notes on Resonances in Classical Mechanics  

E-Print Network [OSTI]

appear in many different contexts in classical mechanics. Examples include: spring, pendulum (with a small amplitude approxima- tion), electric circuit with a capacitor and a coil, antenna, a single, such as a pendulum mov- ing in honey, or an electric circuit with a capacitor and a coil, together with a resistor

Murayama, Hitoshi

7

Transition From Quantum To Classical Mechanics As Information Localization  

E-Print Network [OSTI]

Quantum parallelism implies a spread of information over the space in contradistinction to the classical mechanical situation where the information is "centered" on a fixed trajectory of a classical particle. This means that a quantum state becomes specified by more indefinite data. The above spread resembles, without being an exact analogy, a transfer of energy to smaller and smaller scales observed in the hydrodynamical turbulence. There, in spite of the presence of dissipation (in a form of kinematic viscosity), energy is still conserved. The analogy with the information spread in classical to quantum transition means that in this process the information is also conserved. To illustrate that, we show (using as an example a specific case of a coherent quantum oscillator) how the Shannon information density continuously changes in the above transition . In a more general scheme of things, such an analogy allows us to introduce a "dissipative" term (connected with the information spread) in the Hamilton-Jacobi equation and arrive in an elementary fashion at the equations of classical quantum mechanics (ranging from the Schr\\"{o}dinger to Klein-Gordon equations). We also show that the principle of least action in quantum mechanics is actually the requirement for the energy to be bounded from below.

A. Granik

2005-03-18T23:59:59.000Z

8

A classical, elementary approach to the foundations of Quantum Mechanics  

E-Print Network [OSTI]

Perhaps Quantum Mechanics can be seen just as the simplest mathematical formalism where angular momentum (the magnitude of each of its three orthogonal projections) is by construction quantized: all possible values are taken from a discrete set. Indeed: (i) This idea finds support in very reasonable, completely classical physical arguments, if we place ourselves in the framework of Stochastic Electrodynamics (SED): there, all sustained periodic movement must satisfy a power balance that restricts the value of the average angular momentum, on each of its projections. (ii) It gives a natural explanation of the concept of "photon", as a constraint on the observable spectrum of energy-momentum exchanges between metastable physical states, in particular its discreteness. QM would be, in this picture, a semi-static theory, transparent to all the (micro)-dynamics taking place between apparently "discrete" events (transitions in the state of the system). For instance, (the magnitude of the projections of) quantum ang...

Rodriguez, David

2011-01-01T23:59:59.000Z

9

The ramifications of diffusive volume transport in classical fluid mechanics  

E-Print Network [OSTI]

The thesis that follows consists of a collection of work supporting and extending a novel reformulation of fluid mechanics, wherein the linear momentum per unit mass in a fluid continuum, m, is supposed equal to the volume ...

Bielenberg, James R. (James Ronald), 1976-

2004-01-01T23:59:59.000Z

10

On the hypothesis that quantum mechanism manifests classical mechanics: Numerical approach to the correspondence in search of quantum chaos  

SciTech Connect (OSTI)

Quantum manifestation of classical chaos has been one of the extensively studied subjects for more than a decade. Yet clear understanding of its nature still remains to be an open question partly due to the lack of a canonical definition of quantum chaos. The classical definition seems to be unsuitable in quantum mechanics partly because of the Heisenberg quantum uncertainty. In this regard, quantum chaos is somewhat misleading and needs to be clarified at the very fundamental level of physics. Since it is well known that quantum mechanics is more fundamental than classical mechanics, the quantum description of classically chaotic nature should be attainable in the limit of large quantum numbers. The focus of my research, therefore, lies on the correspondence principle for classically chaotic systems. The chaotic damped driven pendulum is mainly studied numerically using the split operator method that solves the time-dependent Schroedinger equation. For classically dissipative chaotic systems in which (multi)fractal strange attractors often emerge, several quantum dissipative mechanisms are also considered. For instance, Hoover`s and Kubo-Fox-Keizer`s approaches are studied with some computational analyses. But the notion of complex energy with non-Hermiticity is extensively applied. Moreover, the Wigner and Husimi distribution functions are examined with an equivalent classical distribution in phase-space, and dynamical properties of the wave packet in configuration and momentum spaces are also explored. The results indicate that quantum dynamics embraces classical dynamics although the classicalquantum correspondence fails to be observed in the classically chaotic regime. Even in the semi-classical limits, classically chaotic phenomena would eventually be suppressed by the quantum uncertainty.

Lee, Sang-Bong

1993-09-01T23:59:59.000Z

11

Non-relativistic classical mechanics for spinning particles  

E-Print Network [OSTI]

We study the classical dynamics of non-relativistic particles endowed with spin. Non-vanishing Zitterbewegung terms appear in the equation of motion also in the small momentum limit. We derive a generalized work-energy theorem which suggests classical interpretations for tunnel effect and quantum potential.

G. Salesi

2005-07-11T23:59:59.000Z

12

Study of classical mechanical systems with complex potentials  

E-Print Network [OSTI]

We apply the factorization technique developed by Kuru and Negro [Ann. Phys. 323 (2008) 413] to study complex classical systems. As an illustration we apply the technique to study the classical analogue of the exactly solvable PT symmetric Scarf II model, which exhibits the interesting phenomenon of spontaneous breakdown of PT symmetry at some critical point. As the parameters are tuned such that energy switches from real to complex conjugate pairs, the corresponding classical trajectories display a distinct characteristic feature - the closed orbits become open ones.

A. Sinha; D. Dutta; P. Roy

2011-01-08T23:59:59.000Z

13

Mechanisms of classical crystal growth theory explain quartz and silicate dissolution behavior  

E-Print Network [OSTI]

Mechanisms of classical crystal growth theory explain quartz and silicate dissolution behavior processes was previously unknown for oxides or silicates, our mechanism-based findings are consistent, the geochemistry of earth systems is, in large part, controlled by the kinetics of silicate mineral dissolution

Dove, Patricia M.

14

Classical Mechanics of Collinear Positron-Hydrogen Scattering  

E-Print Network [OSTI]

We study the classical dynamics of the collinear positron-hydrogen scattering system below the three-body breakup threshold. Observing the chaotic behavior of scattering time signals, we in- troduce a code system appropriate to a coarse grained description of the dynamics. And, for the purpose of systematic analysis of the phase space structure, a surface of section is introduced being chosen to match the code system. Partition of the surface of section leads us to a surprising conjec- ture that the topological structure of the phase space of the system is invariant under exchange of the dynamical variables of proton with those of positron. It is also found that there is a finite set of forbidden patterns of symbol sequences. And the shortest periodic orbit is found to be stable, around which invariant tori form an island of stability in the chaotic sea. Finally we discuss a possible quantum manifestation of the classical phase space structure relevant to resonances in scattering cross sections.

Lee, Min-Ho; Moon, Jin-Sung; Choi, Nark Nyul; Kim, Dae-Soung

2015-01-01T23:59:59.000Z

15

Energy Down Conversion between Classical Electromagnetic Fields via a Quantum Mechanical SQUID Ring  

E-Print Network [OSTI]

We consider the interaction of a quantum mechanical SQUID ring with a classical resonator (a parallel $LC$ tank circuit). In our model we assume that the evolution of the ring maintains its quantum mechanical nature, even though the circuit to which it is coupled is treated classically. We show that when the SQUID ring is driven by a classical monochromatic microwave source, energy can be transferred between this input and the tank circuit, even when the frequency ratio between them is very large. Essentially, these calculations deal with the coupling between a single macroscopic quantum object (the SQUID ring) and a classical circuit measurement device where due account is taken of the non-perturbative behaviour of the ring and the concomitant non-linear interaction of the ring with this device.

M. J. Everitt; T. D. Clark; P. B. Stiffell; C. J. Harland; J. F. Ralph

2005-05-16T23:59:59.000Z

16

Magnetic monopoles and dyons revisited: A useful contribution to the study of classical mechanics  

E-Print Network [OSTI]

Graduate level physics curricula in many countries around the world, as well as senior-level undergraduate ones in some major institutions, include Classical Mechanics courses, mostly based on Goldstein's textbook masterpiece. During the discussion of central force motion, however, the Kepler problem is virtually the only serious application presented. In this paper, we present another problem that is also soluble, namely the interaction of Schwinger's dual-charged (dyon) particles. While the electromagnetic interaction of magnetic monopoles and electric charges was studied in detail some 40 years ago, we consider that a pedagogical discussion of it from an essentially classical mechanics point of view is a useful contribution for students. Following a path that generalizes Kepler's problem and Rutherford scattering, we show that they exhibit remarkable properties such as stable non-planar orbits, as well as rainbow and glory scattering, which are not present in the ordinary scattering of two singly charged p...

Santos, Renato P dos

2015-01-01T23:59:59.000Z

17

Canonical quantization of classical mechanics in curvilinear coordinates. Invariant quantization procedure  

SciTech Connect (OSTI)

In the paper is presented an invariant quantization procedure of classical mechanics on the phase space over flat configuration space. Then, the passage to an operator representation of quantum mechanics in a Hilbert space over configuration space is derived. An explicit form of position and momentum operators as well as their appropriate ordering in arbitrary curvilinear coordinates is demonstrated. Finally, the extension of presented formalism onto non-flat case and related ambiguities of the process of quantization are discussed. -- Highlights: 旳n invariant quantization procedure of classical mechanics on the phase space over flat configuration space is presented. 昑he passage to an operator representation of quantum mechanics in a Hilbert space over configuration space is derived. 旹xplicit form of position and momentum operators and their appropriate ordering in curvilinear coordinates is shown. 昑he invariant form of Hamiltonian operators quadratic and cubic in momenta is derived. 昑he extension of presented formalism onto non-flat case and related ambiguities of the quantization process are discussed.

B?aszak, Maciej, E-mail: blaszakm@amu.edu.pl; Doma?ski, Ziemowit, E-mail: ziemowit@amu.edu.pl

2013-12-15T23:59:59.000Z

18

Physical process Mechanical mechanisms  

E-Print Network [OSTI]

1 Physical process Generation 路 Mechanical mechanisms F = m路a 路 Electric/Magnetic mechanisms F 颅 Quadrupoles......shear stress fluctuations 颅 High order poles...... phys. interpretation difficult Governing

Berlin,Technische Universit盲t

19

Erasing the traces of classical mechanics in ionization of H{sub 2} by quantum interferences  

SciTech Connect (OSTI)

The single ionization of hydrogen molecules by fast electron impact is studied theoretically for transitions from the ground (gerade) state to final ground (gerade) and first-excited (ungerade) states of H{sub 2}{sup +}. It is shown that under definite conditions and for particular orientations of the molecule, the main physical features of the ionization reaction, which are the binary and recoil peaks usually associated with classical mechanisms, are completely erased by quantum interference effects that resemble the ones predicted previously for photoionization reactions. However, these new effects cannot be derived from photoionization results, as the electromagnetic field cannot transfer momentum. In addition, it is found that the emission spectra of transitions leading to the final gerade and ungerade states of the H{sub 2}{sup +} residual target are analogous in certain cases to the patterns of two sources emitting waves in phase or antiphase, respectively. Finally, we show how an average of the emission from randomly oriented molecules produces a binary peak at the classical expected position, in agreement with experiments.

Fojon, O. A.; Stia, C. R.; Rivarola, R. D. [Laboratorio de Colisiones Atomicas and Instituto de Fisica Rosario, CONICET-UNR, Avenida Pellegrini 250, 2000 Rosario (Argentina)

2011-09-15T23:59:59.000Z

20

Bohmian mechanics, the quantum-classical correspondence and the classical limit: the case of the square billiard  

E-Print Network [OSTI]

Square billiards are quantum systems complying with the dynamical quantum-classical correspondence. Hence an initially localized wavefunction launched along a classical periodic orbit evolves along that orbit, the spreading of the quantum amplitude being controlled by the spread of the corresponding classical statistical distribution. We investigate wavepacket dynamics and compute the corresponding de Broglie-Bohm trajectories in the quantum square billiard. We also determine the trajectories and statistical distribution dynamics for the equivalent classical billiard. Individual Bohmian trajectories follow the streamlines of the probability flow and are generically non-classical. This can also hold even for short times, when the wavepacket is still localized along a classical trajectory. This generic feature of Bohmian trajectories is expected to hold in the classical limit. We further argue that in this context decoherence cannot constitute a viable solution in order to recover classicality.

A. Matzkin

2008-06-19T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

AMEAerospace & Mechanical  

E-Print Network [OSTI]

AMEAerospace & Mechanical Engineering #12;Aerospace and Mechanical Engineers design complex mechanical, thermal, fluidic, acousti- cal, optical, and electronic systems, with char- acteristic sizes space. Aerospace and Mechanical Engineering (AME) students conduct basic and applied research within

Wang, Hai

22

Thermodynamics and equilibrium structure of Ne38 cluster: Quantum mechanics versus classical  

E-Print Network [OSTI]

. For example, although the heat capacity Cv T around the "solid-liquid" transition temperature T 10 K MC simulations are implemented in the parallel tempering framework. The classical heat capacity Cv do not play an essential role in the thermodynamics of Ne38, the quantum heat capacity

Mandelshtam, Vladimir A.

23

The Classical and Quantum Mechanics of a Particle on a Knot  

E-Print Network [OSTI]

A free particle is constrained to move on a knot obtained by winding around a putative torus. The classical equations of motion for this system are solved in a closed form. The exact energy eigenspectrum, in the thin torus limit, is obtained by mapping the time-independent Schrodinger equation to the Mathieu equation. In the general case, the eigenvalue problem is described by the Hill equation. Finite-thickness corrections are incorporated perturbatively by truncating the Hill equation. Comparisons and contrasts between this problem and the well-studied problem of a particle on a circle (planar rigid rotor) are performed throughout.

V. V. Sreedhar

2015-01-06T23:59:59.000Z

24

Mechanical memory  

DOE Patents [OSTI]

A first-in-first-out (FIFO) microelectromechanical memory apparatus (also termed a mechanical memory) is disclosed. The mechanical memory utilizes a plurality of memory cells, with each memory cell having a beam which can be bowed in either of two directions of curvature to indicate two different logic states for that memory cell. The memory cells can be arranged around a wheel which operates as a clocking actuator to serially shift data from one memory cell to the next. The mechanical memory can be formed using conventional surface micromachining, and can be formed as either a nonvolatile memory or as a volatile memory.

Gilkey, Jeffrey C. (Albuquerque, NM); Duesterhaus, Michelle A. (Albuquerque, NM); Peter, Frank J. (Albuquerque, NM); Renn, Rosemarie A. (Albuquerque, NM); Baker, Michael S. (Albuquerque, NM)

2006-05-16T23:59:59.000Z

25

Mechanical memory  

DOE Patents [OSTI]

A first-in-first-out (FIFO) microelectromechanical memory apparatus (also termed a mechanical memory) is disclosed. The mechanical memory utilizes a plurality of memory cells, with each memory cell having a beam which can be bowed in either of two directions of curvature to indicate two different logic states for that memory cell. The memory cells can be arranged around a wheel which operates as a clocking actuator to serially shift data from one memory cell to the next. The mechanical memory can be formed using conventional surface micromachining, and can be formed as either a nonvolatile memory or as a volatile memory.

Gilkey, Jeffrey C. (Albuquerque, NM); Duesterhaus, Michelle A. (Albuquerque, NM); Peter, Frank J. (Albuquerque, NM); Renn, Rosemarie A. (Alburquerque, NM); Baker, Michael S. (Albuquerque, NM)

2006-08-15T23:59:59.000Z

26

Statistical Mechanics with focus on  

E-Print Network [OSTI]

Statistical Mechanics with focus on Liquids, Solutions and Colloidal Systems Course contents A. Foundations of statistical mechanics Classical dynamics 颅 Hamilton's and Liouville's equations The concept statistics. Ideal fermion or boson gases. 颅 Bose-Einstein condensation. The relationship between

Johannesson, Henrik

27

Computational mechanics  

SciTech Connect (OSTI)

The Computational Mechanics thrust area sponsors research into the underlying solid, structural and fluid mechanics and heat transfer necessary for the development of state-of-the-art general purpose computational software. The scale of computational capability spans office workstations, departmental computer servers, and Cray-class supercomputers. The DYNA, NIKE, and TOPAZ codes have achieved world fame through our broad collaborators program, in addition to their strong support of on-going Lawrence Livermore National Laboratory (LLNL) programs. Several technology transfer initiatives have been based on these established codes, teaming LLNL analysts and researchers with counterparts in industry, extending code capability to specific industrial interests of casting, metalforming, and automobile crash dynamics. The next-generation solid/structural mechanics code, ParaDyn, is targeted toward massively parallel computers, which will extend performance from gigaflop to teraflop power. Our work for FY-92 is described in the following eight articles: (1) Solution Strategies: New Approaches for Strongly Nonlinear Quasistatic Problems Using DYNA3D; (2) Enhanced Enforcement of Mechanical Contact: The Method of Augmented Lagrangians; (3) ParaDyn: New Generation Solid/Structural Mechanics Codes for Massively Parallel Processors; (4) Composite Damage Modeling; (5) HYDRA: A Parallel/Vector Flow Solver for Three-Dimensional, Transient, Incompressible Viscous How; (6) Development and Testing of the TRIM3D Radiation Heat Transfer Code; (7) A Methodology for Calculating the Seismic Response of Critical Structures; and (8) Reinforced Concrete Damage Modeling.

Goudreau, G.L.

1993-03-01T23:59:59.000Z

28

Agreement Mechanisms  

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 May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre theAdministratorCFM LEAPAgenda AgendaAgreement Mechanisms

29

Mechanical Engineering ME 3720 FLUID MECHANICS  

E-Print Network [OSTI]

Mechanical Engineering ME 3720 FLUID MECHANICS Pre-requisite: ME 2330 Co-requisite: ME 3210) to develop an understanding of the physical mechanisms and the mathematical models of fluid mechanics of fluid mechanics problems in engineering practice. The basic principles of fluid mechanics

Panchagnula, Mahesh

30

Mechanical & Aerospace Engineering  

E-Print Network [OSTI]

Mechanical & Aerospace Engineering An experimental methodology is presented for mechanism verification of physics-based prognosis of mechanical damage, such as fatigue. The proposed experimental methodology includes multi-resolution in-situ mechanical testing, advanced imaging analysis, and mechanism

31

Statistical Mechanics of Amplifying Apparatus  

E-Print Network [OSTI]

We implement Feynman's suggestion that the only missing notion needed for the puzzle of Quantum Measurement is the statistical mechanics of amplifying apparatus. We define a thermodynamic limit of quantum amplifiers which is a classically describable system in the sense of Bohr, and define macroscopic pointer variables for the limit system. Then we derive the probabilities of Quantum Measurement from the deterministic Schroedinger equation by the usual techniques of Classical Statistical Mechanics.

Joseph Johnson

2005-02-08T23:59:59.000Z

32

Visualizing quantum mechanics in phase space  

E-Print Network [OSTI]

We examine the visualization of quantum mechanics in phase space by means of the Wigner function and the Wigner function flow as a complementary approach to illustrating quantum mechanics in configuration space by wave functions. The Wigner function formalism resembles the mathematical language of classical mechanics of non-interacting particles. Thus, it allows a more direct comparison between classical and quantum dynamical features.

Heiko Bauke; Noya Ruth Itzhak

2011-01-11T23:59:59.000Z

33

Mechanical and Aerospace Engineering  

E-Print Network [OSTI]

Mechanical and Aerospace Engineering seminar Three Dimensional Traction Force Microscopy with Applications in Cell Mechanics abstract The interactions between biochemical and mechanical signals during-dimensional measurement techniques are needed to investigate the effect of mechanical properties of the substrate

34

Mechanical Engineer Company Description  

E-Print Network [OSTI]

Mechanical Engineer Company Description Control Solutions Inc. is a small, dynamic, and rapidly. Position Description The Mechanical Engineer is responsible for all aspects associated with the mechanical enclosures, brackets, cabling assemblies among others. Systems include mechanisms, sensors, hydraulics, among

Kostic, Milivoje M.

35

MECHANICAL ENGINEERING Ross Schlueter  

E-Print Network [OSTI]

MECHANICAL ENGINEERING Ross Schlueter Engineering Deputy For Mechanical Engineering Russ Wells Mechanical Engineering Department Deputy ELECTRONICS, SOFTWARE & INSTRUMENTATION ENGINEERING Henrik von Der Sen Mechanical Admin. Assist. Joan Wolter Electronics Admin. Assist. Marilyn Wong Division Admin

36

Qualitative insights on fundamental mechanics  

E-Print Network [OSTI]

The gap between classical mechanics and quantum mechanics has an important interpretive implication: the Universe must have an irreducible fundamental level, which determines the properties of matter at higher levels of organization. We show that the main parameters of any fundamental model must be theory-independent. They cannot be predicted, because they cannot have internal causes. However, it is possible to describe them in the language of classical mechanics. We invoke philosophical reasons in favor of a specific model, which treats particles as sources of real waves. Experimental considerations for gravitational, electromagnetic, and quantum phenomena are outlined.

G. N. Mardari

2006-11-10T23:59:59.000Z

37

Violation of Bell's inequality in fluid mechanics  

E-Print Network [OSTI]

We show that a classical fluid mechanical system can violate Bell's inequality because the fluid motion is correlated over large distances.

Robert Brady; Ross Anderson

2013-05-28T23:59:59.000Z

38

ENGINEERING MECHANICS SEMINARSENGINEERING MECHANICS SEMINARS THINK COMPOSITE  

E-Print Network [OSTI]

ENGINEERING MECHANICS SEMINARSENGINEERING MECHANICS SEMINARS THINK COMPOSITE "THINK outside the box" for more competitive structural COMPOSITES Dr. Melih Papila Visiting Professor, Aero/Astro Department, Stanford University. Adv. Composites and Polymer Processing Lab., Sabanci University, Istanbul. mpapila

Ponce, V. Miguel

39

Heavy Mobile Equipment Mechanic (One Mechanic Shop)  

Broader source: Energy.gov [DOE]

The position is a Heavy Mobile Equipment Mechanic (One Mechanic Shop) located in Kent, Washington, and will be responsible for the safe and efficient operation of a field garage performing...

40

Quantum Mechanics and Gravitation  

E-Print Network [OSTI]

In summer 1999 an experiment at ILL, Grenoble was conducted. So-called ultra-cold neutrons (UCN) were trapped in the vertical direction between the Fermi-potential of a smooth mirror below and the gravitational potential of the earth above [Ne00, Ru00]. If quantum mechanics turns out to be a sufficiently correct description of the phenomena in the regime of classical, weak gravitation, one should observe the forming of quantized bound states in the vertical direction above a mirror. Already in a simplified view, the data of the experiment provides strong evidence for the existence of such gravitationally bound quantized states. A successful quantum-mechanical description would then provide a convincing argument, that the socalled first quantization can be used for gravitation as an interaction potential, as this is widely expected. Furthermore, looking at the characteristic length scales of about 10 mikron of such bound states formed by UCN, one sees, that a complete quantum mechanical description of this experiment additionally would enable one to check for possible modifications of Newtonian gravitation on distance scales being one order of magnitude below currently available tests [Ad00]. The work presented here deals mainly with the development of a quantum mechanical description of the experiment.

A. Westphal

2003-04-08T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Mechanical & Biomedical Engineering  

E-Print Network [OSTI]

Mechanical & Biomedical Engineering Department BACHELOR OF SCIENCE IN MECHANICAL ENGINEERING COURSE 105 Mechanical Engineering Graphics 3 CHEM 111L College Chemistry Lab (DLN) 1 ENGL 102 English PHYS 211 Mechanics, Waves & Heat (DLN) 4 UF 100 Intellectual Foundations 3 PHYS 211L Mechanics, Waves

Barrash, Warren

42

6When you heat a rubber band, it contracts. If you only know about point particles and ideal gases, this behavior is perplexing. But, a simple classical statistical mechanics model of a chain  

E-Print Network [OSTI]

gases, this behavior is perplexing. But, a simple classical statistical mechanics model of a chain for given N and M. Call the result (N,M). (b) Using Stirling's approximation in the form ln(N!) N ln(N) - N and extent R, in the regime Na >> R. Write down the expression for the free energy of the chain (in

Ha, Taekjip

43

Mechanical Engineering Graduate Student  

E-Print Network [OSTI]

......................................................................................9 Engineering Career Services ................................................................9 McMechanical Engineering Graduate Student Handbook January 2014 Department of Mechanical Engineering University of Wisconsin-Madison #12;Mechanical Engineering Web Page: http://www.engr.wisc.edu/me Graduate

Wisconsin at Madison, University of

44

Mechanical & Industrial Engineering  

E-Print Network [OSTI]

Mechanical & Industrial Engineering 1 Welcome MIE Industrial Advisory Board October 15, 2010 #12;Mechanical & Industrial Engineering 2 MIE Dorothy Adams Undergraduate/Graduate Secretary David Schmidt Associate Professor & Graduate Program Director #12;Mechanical & Industrial Engineering 3 MIE James Rinderle

Mountziaris, T. J.

45

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

and the Department of Mechanical Engineering Tufts University Retooling Our Energy Ecosystem: challengesMechanical engineering Department Seminar Robert J. Hannemann The Gordon Institute and Chair of the Tufts Department of Mechanical Engineering. His technical and academic interests

46

MECHANICAL ENGINEERING UNDERGRADUATE MAJOR  

E-Print Network [OSTI]

HANDBOOK FOR MECHANICAL ENGINEERING UNDERGRADUATE MAJOR Old Dominion University Department of Mechanical Engineering Batten College of Engineering and Technology Norfolk, Virginia 23529-0247 #12;TABLE OF CONTENTS MECHANICAL ENGINEERING HANDBOOK

47

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Katia Bertoldi Harvard University Soft materials in response to diverse stimuli. While the mechanical attributes - such as energy absorption, stiffness and switchable functionalities. Katia Bertoldi is an Assistant Professor of Applied Mechanics at Harvard

48

8.334 Statistical Mechanics II: Statistical Mechanics of Fields, Spring 2004  

E-Print Network [OSTI]

A two-semester course on statistical mechanics. Basic principles are examined in 8.333: the laws of thermodynamics and the concepts of temperature, work, heat, and entropy. Postulates of classical statistical mechanics, ...

Kardar, Mehran

49

Mechanical & Industrial Engineering  

E-Print Network [OSTI]

Mechanical & Industrial Engineering 1 Welcome MIE Industrial Advisory Board May 5th, 2011 #12;Mechanical & Industrial Engineering 2 IAB 2010-2011 路 David K. Anderson 颅 Alden Research Laboratory, Inc went on for three weeks Mechanical & Industrial Engineering 6 #12;Reza Shahbazian Yassar Mechanical

Mountziaris, T. J.

50

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Ju Li Professor MIT Electrochemical-mechanical actions computational and experimental research on mechanical properties of materials, and energy storage and conversion Refreshments served at 10:45 AM The creation of a nanoscale electrochemical and mechanical testing platform

Lin, Xi

51

Mechanical Engineering Undergraduate  

E-Print Network [OSTI]

Mechanical Engineering Department Undergraduate Advising Manual for Bachelor of Science Degrees in Mechanical Engineering and Engineering Mechanics 2011-2012 - Updated April 15, 2012 #12;Johns Hopkins University 颅 Department of Mechanical Engineering 2011-2012 Undergraduate Student Advising Manual Page 2

Ghosh, Somnath

52

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar James Bird Department of Mechanical Engineering Boston 颅 are discussed. James Bird is an Assistant Professor in the Mechanical Engineering Department at Boston completed post-doctoral research at MIT. His research interests include experimental fluid mechanics

53

Mechanical Engineering Undergraduate  

E-Print Network [OSTI]

Mechanical Engineering Department Undergraduate Advising Manual for Bachelor of Science Degrees in Mechanical Engineering and Engineering Mechanics 2012-2013 - Updated July 14, 2013 #12;Johns Hopkins University 颅 Department of Mechanical Engineering 2012-2013 Undergraduate Student Advising Manual Page 2

Ghosh, Somnath

54

Mechanical Engineering & Thermal Group  

E-Print Network [OSTI]

Mechanical Engineering & Thermal Group The Mechanical Engineering (ME) & Thermal Group at LASP has, and ground- based mechanical systems. Instrument Design Building on decades of design experience that has evolved with the complexity of instrument design demands, LASP mechanical engineers develop advanced

Mojzsis, Stephen J.

55

Combined Quantum Mechanical and Molecular Mechanics Studies of...  

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

Mechanical and Molecular Mechanics Studies of the Electron-Transfer Reactions Involving Carbon Tetrachloride in Combined Quantum Mechanical and Molecular Mechanics Studies of the...

56

Sandia National Laboratories: Mechanical Testing  

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

EnergyNuclear Energy Systems Laboratory (NESL) Brayton LabMechanical Testing Mechanical Testing Mechanical Testing Overview Mechanical 1-2 (2008). Standard Test Methods for...

57

Internal pipe attachment mechanism  

DOE Patents [OSTI]

An attachment mechanism for repairing or extending fluid carrying pipes, casings, conduits, etc. utilizing one-way motion of spring tempered fingers to provide a mechanical connection between the attachment mechanism and the pipe. The spring tempered fingers flex to permit insertion into a pipe to a desired insertion depth. The mechanical connection is accomplished by reversing the insertion motion and the mechanical leverage in the fingers forces them outwardly against the inner wall of the pipe. A seal is generated by crushing a sealing assembly by the action of setting the mechanical connection.

Bast, Richard M. (Livermore, CA); Chesnut, Dwayne A. (Pleasanton, CA); Henning, Carl D. (Livermore, CA); Lennon, Joseph P. (Livermore, CA); Pastrnak, John W. (Livermore, CA); Smith, Joseph A. (Livermore, CA)

1994-01-01T23:59:59.000Z

58

Internal pipe attachment mechanism  

DOE Patents [OSTI]

An attachment mechanism is described for repairing or extending fluid carrying pipes, casings, conduits, etc. utilizing one-way motion of spring tempered fingers to provide a mechanical connection between the attachment mechanism and the pipe. The spring tempered fingers flex to permit insertion into a pipe to a desired insertion depth. The mechanical connection is accomplished by reversing the insertion motion and the mechanical leverage in the fingers forces them outwardly against the inner wall of the pipe. A seal is generated by crushing a sealing assembly by the action of setting the mechanical connection. 6 figures.

Bast, R.M.; Chesnut, D.A.; Henning, C.D.; Lennon, J.P.; Pastrnak, J.W.; Smith, J.A.

1994-12-13T23:59:59.000Z

59

Programmable Mechanical Metamaterials  

E-Print Network [OSTI]

We create mechanical metamaterials whose response to uniaxial compression can be programmed by lateral confinement, allowing monotonic, non-monotonic and hysteretic behavior. These functionalities arise from a broken rotational symmetry which causes highly nonlinear coupling of deformations along the two primary axes of these metamaterials. We introduce a soft mechanism model which captures the programmable mechanics, and outline a general design strategy for confined mechanical metamaterials. Finally, we show how inhomogeneous confinement can be explored to create multi stability and giant hysteresis.

Bastiaan Florijn; Corentin Coulais; Martin van Hecke

2014-07-17T23:59:59.000Z

60

Mechanical & Industrial Engineering  

E-Print Network [OSTI]

Mechanical & Industrial Engineering Mario A. Rotea Professor and Department Head #12;2Mechanical & Industrial Engineering Outline 路 Undergraduate Degree Programs 路 Graduate Degree Programs 路 The Faculty 路 The Research 路 Summary #12;3Mechanical & Industrial Engineering Undergraduate Programs 颅 BSME & BSIE 0 20 40 60

Mountziaris, T. J.

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

efficient energy systems. Evelyn N. Wang is an Associate Professor in the Mechanical Engineering DepartmentMechanical engineering Department Seminar Evelyn Wang Depaprtment of Mechanical Engineering MIT Nanoengineered Surfaces: Transport Phenomena and Energy Applications 11:00 AM Friday, 5 April 2013 Room 245, 110

62

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Domitilla Del Vecchio Department of Mechanical. A near future is envisioned in which re- engineered bacteria will turn waste into energy and kill cancer, she joined the Department of Mechanical Engineering and the Laboratory for Information and Decision

63

Mechanical & Aerospace Engineering  

E-Print Network [OSTI]

in Mechanical Engineering at the School for Engineering of Matter, Transport and Energy, working in Dr. MarcusMechanical & Aerospace Engineering The atomization of a liquid jet by a high speed cross.S.E. degree in mechanical engineering from Amirkabir University of Technology in 2006 and M.S. degree

64

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Shuodao Wang Postdoctoral Fellow University of Illinois, Urbana-Champaign Mechanical Design and Fabrication Techniques for Bio-Electronic Systems 11:00 AM Friday that bridge this gap in mechanics and form will create new opportunities in bio-inspired and bio

Lin, Xi

65

Mechanical and Aerospace Engineering  

E-Print Network [OSTI]

Mechanical and Aerospace Engineering Abstract Solid materials used in energy conversion and storage that couples the mechanical and chemical (or electrochemical) fields in solids via the use of stress-chemo- mechanical theory, two examples of practical interest will be discussed, namely, solid oxide fuel cells

66

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Maureen Lynch Postdoctoral Fellow Cornell University Mechanical Loading Decreases Osteolysis and Tumor Formation via Effects on Bone Remodeling 11:00 AM Friday to mechanical stimuli in the skeleton, yet the role of biomechanical loading remains poorly characterized

Lin, Xi

67

UNSATURATED SOIL MECHANICS IMPLEMENTATION  

E-Print Network [OSTI]

UNSATURATED SOIL MECHANICS IMPLEMENTATION DURING PAVEMENT CONSTRUCTION QUALITY ASSURANCE Mn !! Performance Based Construction QA !! Unsaturated Soil Mechanics !! What We've Learned !! Next Steps #12.6-6.0 5 - 7 19 0.8 5 7 - 9 24 1.1 4 9 - 11 28 1.2 4 #12;Unsaturated Soil Mechanics #12;Fundamentals

Minnesota, University of

68

Victor Yakhot Mechanical Engineering  

E-Print Network [OSTI]

to flows of strongly non-linear fluids relevant for mechanical engineering, polymers and bio-fluid dynamicsVictor Yakhot Mechanical Engineering UniversalReynoldsNumberofTransition,Renormalizationand Mechanical Engineering 11 AM Friday, October 31st Room 245, 110 Cummington Mall Refreshments served at 10

Lin, Xi

69

Mechanical seal assembly  

DOE Patents [OSTI]

An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by a series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transfering it to the mechanical diode.

Kotlyar, Oleg M. (Salt Lake City, UT)

2002-01-01T23:59:59.000Z

70

Mechanical seal assembly  

DOE Patents [OSTI]

An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by a series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transferring it to the mechanical diode.

Kotlyar, Oleg M. (Salt Lake City, UT)

2001-01-01T23:59:59.000Z

71

On the foundation of Mechanics  

E-Print Network [OSTI]

This note is an extended version of "A note on the foundations of Mechanics", arXiv: 1404.1321 [math-ph]. A presentation of its contents was given in a talk in memorial homage to the professor Juan B. Sancho Guimer\\'a. For this reason, it was written in spanish language. The matter of the note is a systematic foundation of the most classical part of Mechanics. The content by sections is: 0) Notions and basic results, 1) Conservative systems 2) Time. Time constraints, 3) Proper time. Relativistic forces, 4) Electromagnetic fields, 5) On the Hamilton-Noether Principle, 6) Schr\\"odinger equation.

Ricardo J. Alonso-Blanco; Jes鷖 Mu駉z-D韆z

2014-12-09T23:59:59.000Z

72

Schwinger Mechanism with Stochastic Quantization  

E-Print Network [OSTI]

We prescribe a formulation of the particle production with real-time Stochastic Quantization. To construct the retarded and the time-ordered propagators we decompose the stochastic variables into positive- and negative-energy parts. In this way we demonstrate how to derive a standard formula for the Schwinger mechanism under time-dependent electric fields. We discuss a mapping to the Schwinger-Keldysh formalism and a relation to the classical statistical simulation.

Kenji Fukushima; Tomoya Hayata

2014-06-23T23:59:59.000Z

73

The Department of Mechanical Engineering --Engineering Mechanics  

E-Print Network [OSTI]

undergraduate and graduate courses in thermodynamics, fuel cell systems, sustainable energy systems, and mechanical systems design. Dr. Ellis is the director of the Sustainable Energy Research Program in Virginia. Ellis has 25 years of experience in engineering, research, and education related to the development

Endres. William J.

74

Mechanical Properties of Nanocrystal Supercrystals  

E-Print Network [OSTI]

and Its Impact on Mechanical Properties. MacromoleculesO. L. ; Minor, A. M. , Mechanical annealing and source-Mechanical Properties of Nanocrystal Supercrystals Enrico

Tam, Enrico

2010-01-01T23:59:59.000Z

75

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

operating in microfluidic environment, which can dynamically diverge, collimate and focus surface plasmons in 2012, with a joint appointment in the Department of Mechanical & Industrial Engineering

Lin, Xi

76

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Research Center. Currently he is an Assistant Prof. in the Aerospace and Ocean Engineering DepartmentMechanical engineering Department Seminar Cornel Sultan Virginia Tech Design for Control

77

Technology Partnering Mechanisms  

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

expand a business with INL technologies, or require business support our Technology Transfer team is available to discuss the following contractual mechanisms: Cooperative...

78

Boston University Department of Mechanical Engineering ME 303 Fluid Mechanics  

E-Print Network [OSTI]

Boston University Department of Mechanical Engineering ME 303 颅 Fluid Mechanics Fall 2011 Class: EK301 Engineering Mechanics Course Textbook: Fundamentals of Fluid Mechanics, 6th ed., Munson B. Reference Texts: Fluid Mechanics, Landau and Lifshitz, Vol. 6 Fluid Mechanics, Y. Cengel and J. Cimbala

79

Department of Mechanical Engineering  

E-Print Network [OSTI]

Explore and understand applicable science Create new materials #12;Indian Railways #12;Wheel Impact Load automated system for On-Line estimation of Wheel Impact Loads and detection of Wheel Flats of running trains Detection System (WILD) #12;Derailment Mechanism Laboratory Tests Lab Brake Mechanism Placement of Sensors

Srivastava, Kumar Vaibhav

80

Mechanical & Aerospace Engineering  

E-Print Network [OSTI]

Mechanical & Aerospace Engineering In the pursuit of developing manned, reusable hypersonic & Energy Arizona State University November 9, 2012 at 1:30pm in SCOB 228 School for Engineering of Matter will experience thermal and mechanical loads. The research presented will discuss advancements in structural

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Junjie Niu Postdoctoral Associate MIT Engineering Nano nanomaterials in applications of energy storage, biomedicine and chemo-mechanics. In 2007, Dr.Niu received young-structured Materials for Energy Storage 11:00 AM Friday, 14 February 2014 Room 245, 110 Cummington Mall Refreshments

Lin, Xi

82

Mechanical & Aerospace Engineering  

E-Print Network [OSTI]

Mechanical & Aerospace Engineering The development of high-energy storage devices has been one energy capacity over 500 cycles. Teng Ma received his BS degree in Thermal and Power Engineering from Xi and Technology of China in 2009. He is currently a Ph.D. candidate in Mechanical Engineering at School

83

Mechanical & Aerospace Engineering  

E-Print Network [OSTI]

, and nuclear energy. She is a member of the American Society of Mechanical Engineers (ASME), Fluids EngineeringMechanical & Aerospace Engineering Interfacial flows are multi-material flows comprised of two of the interface between the fluids and the interface physics (like surface tension) needs to be predicted as part

84

Respiratory Mechanisms of Support  

E-Print Network [OSTI]

Respiratory Mechanisms of Support Nasal Cannula Hi Flow Nasal Cannula CPAP Continuous positive the respiratory system is working to compensate for a metabolic issue so as to normalize the blood pH. HCO3 - 22 uses PIP Mechanical Ventilation: Volume vs. Pressure: Volume Control Pressure Control Cycle Volume Time

Kay, Mark A.

85

Graduate Studies Environmental Fluid Mechanics  

E-Print Network [OSTI]

Graduate Studies Environmental Fluid Mechanics and Water Resources Engineering ENVIRONMENTAL FLUID MECHANICS AND WATER RESOURCES ENGINEERING (EFMWR) The environmental fluid mechanics and water resources Environmental Fluid Mechanics and Hydraulic Engineering research focuses on turbulent entrainment, transport

Jacobs, Laurence J.

86

MECHANICAL ENGINEERING Program of Study  

E-Print Network [OSTI]

MECHANICAL ENGINEERING Program of Study Correspondence The Department of Mechanical Engineering offers graduate programs in the fields of thermal science and engineering mechanics. Current areas of research activity include Biomedical Engineering, Biomimetics, Composite Materials, Computational Mechanics

Thomas, Andrew

87

Integrated Mechanical & Electrical Engineering (IMEE)  

E-Print Network [OSTI]

Integrated Mechanical & Electrical Engineering (IMEE) Department of Electronic & Electrical Engineering and Department of Mechanical Engineering #12;Graduates able to work in both mechanical of Mechanical Engineers (IMechE) n Develop essential engineering skills through extensive project work n Enhance

Burton, Geoffrey R.

88

Optics, Mechanics and Quantization of Reparametrization Systems  

E-Print Network [OSTI]

In this paper we regard the dynamics obtained from Fermat principle as begin the classical theory of light. We (first-)quantize the action and show how close we can get to the Maxwell theory. We show that Quantum Geometric Optics is not a theory of fields in curved space. Considering Classical Mechanics to be on the same footing, we show the parallelism between Quantum Mechanics and Quantum Geometric Optics. We show that, due to the reparametrization invariance of the classical theories, the dynamics of the quantum theories is given by a Hamiltonian constraint. Some implications of the above analogy in the quantization of true reparameterization invariant systems are discussed.

M. Navarro; J. Guerrero; V. Aldaya

1994-04-20T23:59:59.000Z

89

Mechanical code comparator  

DOE Patents [OSTI]

A new class of mechanical code comparators is described which have broad potential for application in safety, surety, and security applications. These devices can be implemented as micro-scale electromechanical systems that isolate a secure or otherwise controlled device until an access code is entered. This access code is converted into a series of mechanical inputs to the mechanical code comparator, which compares the access code to a pre-input combination, entered previously into the mechanical code comparator by an operator at the system security control point. These devices provide extremely high levels of robust security. Being totally mechanical in operation, an access control system properly based on such devices cannot be circumvented by software attack alone.

Peter, Frank J. (Albuquerque, NM); Dalton, Larry J. (Bernalillo, NM); Plummer, David W. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

90

Graduate Studies Environmental Fluid Mechanics  

E-Print Network [OSTI]

Graduate Studies Environmental Fluid Mechanics and Water Resources Engineering GRADUATE COURSESResourcesManagement 路 IntermediateFluidMechanics 路 AdvancedFluidMechanics 路 EnvironmentalFluidMechanics 路 AdvancedEnvironmental FluidMechanics 路 FluidMechanicsofOrganisms 路 OpenChannelHydraulics 路 SedimentTransport 路 ComputationalFluidMechanics

Storici, Francesca

91

Rotary mechanical latch  

DOE Patents [OSTI]

A rotary mechanical latch for positive latching and unlatching of a rotary device with a latchable rotating assembly having a latching gear that can be driven to latched and unlatched states by a drive mechanism such as an electric motor. A cam arm affixed to the latching gear interfaces with leading and trailing latch cams affixed to a flange within the drive mechanism. The interaction of the cam arm with leading and trailing latch cams prevents rotation of the rotating assembly by external forces such as those due to vibration or tampering.

Spletzer, Barry L.; Martinez, Michael A.; Marron, Lisa C.

2012-11-13T23:59:59.000Z

92

Electronic door locking mechanism  

DOE Patents [OSTI]

The invention is a motorized linkage for engaging a thumb piece in a door mechanism. The device has an exterior lock assembly with a small battery cell and combination lock. Proper entry by a user of a security code allows the battery to operate a small motor within the exterior lock assembly. The small motor manipulates a cam-plunger which moves an actuator pin into a thumb piece. The user applies a force on to the thumb piece. This force is transmitted by the thumb piece to a latch engagement mechanism by the actuator pin. The latch engagement mechanism operates the door latch.

Williams, Gary Lin (428 E. Third Ave., Kennewick, WA 99336); Kirby, Patrick Gerald (1010 W. Fifteenth Pl., Kennewick, WA 99337)

1997-01-01T23:59:59.000Z

93

Electronic door locking mechanism  

DOE Patents [OSTI]

The invention is a motorized linkage for engaging a thumb piece in a door mechanism. The device has an exterior lock assembly with a small battery cell and combination lock. Proper entry by a user of a security code allows the battery to operate a small motor within the exterior lock assembly. The small motor manipulates a cam-plunger which moves an actuator pin into a thumb piece. The user applies a force on to the thumb piece. This force is transmitted by the thumb piece to a latch engagement mechanism by the actuator pin. The latch engagement mechanism operates the door latch. 6 figs.

Williams, G.L.; Kirby, P.G.

1997-10-21T23:59:59.000Z

94

Ultralight, ultrastiff mechanical metamaterials  

E-Print Network [OSTI]

The mechanical properties of ordinary materials degrade substantially with reduced density because their structural elements bend under applied load. We report a class of microarchitected materials that maintain a nearly ...

Zheng, Xiaoyu

95

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

people trained from both perspectives can result in innovative solutions. At Fraunhofer CMI 颅 coMechanical engineering Department Seminar Alexis Sauer-Budge Senior Research Scientist, Fraunhofer CMI Adjunct Research Assistant Professor, BME, Boston University Innovations at the intersection

96

Mechanical & Aerospace Engineering  

E-Print Network [OSTI]

Mechanical & Aerospace Engineering This presentation will address the development and transition of advanced structural health management (SHM) technologies from the perspective of understanding and the importance of understanding this role to increase the likelihood for transition of new technologies

97

Mechanical Compression Heat Pumps  

E-Print Network [OSTI]

MECHANICAL COMPRESSION HEAT PUMPS Thomas-L. Apaloo and K. Kawamura Mycom Corporation, Los Angeles, California J. Matsuda, Mayekawa Mfg. Co., Tokyo, Japan ABSTRACT Mechanical compression heat pumping is not new in industrial applications.... In fact, industry history suggests that the theoretical concept was developed before 1825. Heat pump manufacturers gained the support of consultants and end-users when the energy crisis hit this country in 1973. That interest, today, has been...

Apaloo, T. L.; Kawamura, K.; Matsuda, J.

98

MECH 386 INDUSTRIAL FLUID MECHANICS INDUSTRIAL FLUID MECHANICS  

E-Print Network [OSTI]

MECH 386 颅 INDUSTRIAL FLUID MECHANICS 1 INDUSTRIAL FLUID MECHANICS MECH 386 Contact information Dr This course is an introduction to industrial fluid mechanics. According to J. C. R. Hunt (a famous fluid mechanics specialist): "industrial fluid mechanics broadly covers those aspects of the design, manufacture

99

Mechanical Engineering Is Mechanical Engineering right for me?  

E-Print Network [OSTI]

Mechanical Engineering Is Mechanical Engineering right for me? If you are interested in the wide range of principles related to mechanical systems then Mechanical Engineering is well suited to you. A Mechanical Engineering degree programme will focus on aspects such as analysis, design, manufacture

Harman, Neal.A.

100

The Role of Micro-Mechanics in Soil Mechanics  

E-Print Network [OSTI]

The Role of Micro-Mechanics in Soil Mechanics M.D.Bolton CUED/D-Soils/TR313 September 2000;1 The Role of Micro-Mechanics in Soil Mechanics Malcolm Bolton Summary It is suggested that observations of the changing microstructure of soils will permit the selection and refinement of relevant micro-mechanisms

Bolton, Malcolm

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

MECHANICAL ENGINEERING UNDERGRADUATE HONORS THESIS  

E-Print Network [OSTI]

, when two bound copies are to be submitted to the Mechanical Engineering Services Office #12;PLEASE Mechanical Engineering Student Services: 篓 Application Approved 篓 Application Denied Signature of UGMECHANICAL ENGINEERING UNDERGRADUATE HONORS THESIS The Department of Mechanical Engineering

Prinz, Friedrich B.

102

STANFORD UNIVERSITY MECHANICAL ENGINEERING DEPARTMENT  

E-Print Network [OSTI]

20062007 Mechanical Engineering Student Services Building 530, Room 125 (650) 7257695 FAX (650) 7234882STANFORD UNIVERSITY MECHANICAL ENGINEERING DEPARTMENT GRADUATE STUDENT HANDBOOK Academic Year Revised 9/06 #12;MECHANICAL ENGINEERING GRADUATE STUDENT HANDBOOK 20062007 TABLE OF CONTENTS (Clickable

Prinz, Friedrich B.

103

Experimental unsaturated soil mechanics  

E-Print Network [OSTI]

In this general report, experimental systems and procedures of investigating the hydro-mechanical behaviour of unsaturated soils are presented. The water retention properties of unsaturated soils are commented and linked to various physical parameters and properties of the soils. Techniques of controlling suction are described together with their adaptation in various laboratory testing devices. Some typical features of the mechanical behaviour of unsaturated soils are presented within an elasto-plastic framework. An attempt to describe the numerous and significant recent advances in the investigation of the behaviour of unsaturated soils, including the contributions to this Conference, is proposed.

Delage, Pierre

2008-01-01T23:59:59.000Z

104

Mechanical Behavior of Indium Nanostructures  

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

Mechanical Behavior of Indium Nanostructures Mechanical Behavior of Indium Nanostructures Print Wednesday, 26 May 2010 00:00 Indium is a key material in lead-free solder...

105

Adsorption mechanisms and effect of temperature in reversed-phase liquid chromatography-Meaning of the classical Van't Hoff plot in chromatography  

SciTech Connect (OSTI)

The effect of temperature on the adsorption and retention behaviors of a low molecular weight compound (phenol) on a C{sub 18}-bonded silica column (C{sub 18}-Sunfire, Waters) from aqueous solutions of methanol (20%) or acetonitrile (15%) was investigated. The results of the measurements were interpreted successively on the basis of the linear (i.e., overall retention factors) and the nonlinear (i.e., adsorption isotherms, surface heterogeneity, saturation capacities, and equilibrium constants) chromatographic methods. The confrontation of these two approaches confirmed the impossibility of a sound physical interpretation of the conventional Van't Hoff plot. The classical linear chromatography theory assumes that retention is determined by the equilibrium thermodynamics of analytes between a homogeneous stationary phase and a homogeneous mobile phase (although there may be two or several types of interactions). From values of the experimental retention factors in a temperature interval and estimates of the activity coefficients at infinite dilution in the same temperature interval provided by the UNIFAC group contribution method, evidence is provided that such a retention model cannot hold. The classical Van't Hoff plot appears meaningless and its linear behavior a mere accident. Results from nonlinear chromatography confirm these conclusions and provide explanations. The retention factors seem to fulfill the Van't Hoff equation, not the Henry constants corresponding to the different types of adsorption sites. The saturation capacities and the adsorption energies are clearly temperature dependent. The temperature dependence of these characteristics of the different assorption sites are different in aqueous methanol and acetonitrile solutions.

Gritti, Fabrice [University of Tennessee, Knoxville (UTK); Guiochon, Georges A [ORNL

2006-07-01T23:59:59.000Z

106

Department of Mechanical Engineering  

E-Print Network [OSTI]

Department of Mechanical Engineering 2014 Fast Facts Faculty Based on 2013 statistics from Master's Degrees Awarded 45 Doctorate Degrees Awarded Funding Fiscal Year 2013 $20M Total Research for Energetic Concepts Development Center for Environmental Energy Engineering Center for Risk and Reliability

Li, Teng

107

MECHANICAL TEST LAB CAPABILITIES  

E-Print Network [OSTI]

MECHANICAL TEST LAB CAPABILITIES 路 Static and cyclic testing (ASTM and non-standard) 路 Impact drop testing 路 Slow-cycle fatigue testing 路 High temperature testing to 2500掳F 路 ASTM/ Boeing/ SACMA standard testing 路 Ability to design and fabricate non-standard test fixtures and perform non-standard tests

108

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Jason Fleischer Department of Electrical Engineering Princeton University Fluid dynamics of light 11:00 AM Friday, November 4th, 2011 Room 245, 110 Cummington Street Refreshments served at 10:45 AM Fluid dynamics inspired the original wave theories of light, while

109

Mechanical & Aerospace Engineering  

E-Print Network [OSTI]

, electrical, and computing sciences that allows the development of machines that are able to act to recent advances in the science of robotics, and thus the machines perform primarily as mechanical devices for manual (human) labor. However, many machines currently in use in manufacturing were developed prior

110

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Wynter J. Duncanson Department of Aerospace and Ocean Engineering Virginia Tech Smart' Bubbles for Acoustic Contrast in Oil Reservoirs 11:00 AM Friday, 19 April engineering from Boston University. Her doctoral research was devoted to designing surface architectures

111

Mechanical engineering Department Seminar  

E-Print Network [OSTI]

Mechanical engineering Department Seminar Eric Suuberg Professor Brown University Another Reason, chemicals of anthropogenic origin can migrate from soil into houses, invis- ibly, over time, impacting the soil gas migration problem, and used these to develop simple analytical approaches to estimating

Lin, Xi

112

Residential Mechanical Precooling  

SciTech Connect (OSTI)

This research conducted by the Alliance for Residential Building Innovation team evaluated mechanical air conditioner pre-cooling strategies in homes throughout the United States. EnergyPlus modeling evaluated two homes with different performance characteristics in seven climates. Results are applicable to new construction homes and most existing homes built in the last 10 years, as well as fairly efficient retrofitted homes.

German, A.; Hoeschele, M.

2014-12-01T23:59:59.000Z

113

Imaging the Antikythera Mechanism  

SciTech Connect (OSTI)

In 1900, a party of sponge divers chanced on the wreck of a Roman merchant vessel between Crete and mainland Greece. It was found to contain numerous ancient Greek treasures, among them a mysterious lump of clay that split open to reveal 'mathematical gears' as it dried out. This object is now known as the Antikythera Mechanism, one of the most enlightening artifacts in terms of revealing the advanced nature of ancient Greek science and technology. In 2005 we travelled to the National Archeological Museum in Athens to apply our Reflectance Imaging methods to the mechanism in the hopes of revealing ancient writing on the device. We were successful, and along with the results of Microfocus CT imaging, we are able to decipher 3000 characters compared with the original 800 known. This lead to an understanding that the device was a mechanical, astronomical computer from 150 B.C.E. capable of predicting solar and lunar eclipses along with other celestial events. This talk will overview both the imaging methods as well as what they reveal about the Antikythera Mechanism.

Malzbender, Tom (Hewlett Packard Laboratories) [Hewlett Packard Laboratories

2011-01-12T23:59:59.000Z

114

Department of Mechanical Engineering "From Compliant Mechanisms to  

E-Print Network [OSTI]

such as 3D printing with materials specialized in electro- mechanical sensing and actuation in addition

Militzer, Burkhard

115

MECHANICAL ENGINEERING 121 Department of Mechanical Engineering (MEE)  

E-Print Network [OSTI]

MECHANICAL ENGINEERING 121 Department of Mechanical Engineering (MEE) *Available for general education credit. The Department of Mechanical Engineering offers an upper- division curriculum which leads to a B.S. in mechanical engineering. The curriculum is based on a strong foundation of fundamental

Kostic, Milivoje M.

116

Mechanical engineering Mechanical engineering is about solving problems, designing processes,  

E-Print Network [OSTI]

Mechanical engineering Mechanical engineering is about solving problems, designing processes, and making products to improve the quality of human life and shape the economy. Mechanical engineers apply the principles of physics, mathematics, computing and practical skills to design mechanical systems and artefacts

Waikato, University of

117

114 MECHANICAL ENGINEERING Department of Mechanical Engineering (MEE)  

E-Print Network [OSTI]

114 MECHANICAL ENGINEERING Department of Mechanical Engineering (MEE) *Available for general education credit. The Department of Mechanical Engineering offers an upper- division curriculum which leads to a B.S. in mechanical engineering. The curriculum is based on a strong foundation of fundamental

Kostic, Milivoje M.

118

Program Transformation Mechanics A Classification of Mechanisms for Program Transformation  

E-Print Network [OSTI]

Program Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing Transformation Systems Jonne van Wijngaarden Eelco Visser UU-CS-2003-048 Institute Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing

Utrecht, Universiteit

119

Fluid Mechanics and Homeland Security  

E-Print Network [OSTI]

Fluid Mechanics and Homeland Security Gary S. Settles Mechanical and Nuclear Engineering Department. 2006. 38:87颅110 The Annual Review of Fluid Mechanics is online at fluid.annualreviews.org doi: 10 security involves many applications of fluid mechanics and offers many opportunities for research

Settles, Gary S.

120

Mechanical Engineering Department Seminar Series  

E-Print Network [OSTI]

Mechanical Engineering Department Seminar Series Rational Mechanics of Viral Shells: Is Continuum Theory a Stretch? William S. Klug Associate Professor, Mechanical & Aerospace Engineering, University-assembly. The capacity of these shells to respond structurally and mechanically to physical and chemical stimuli also

Eustice, Ryan

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

07SCHOOL OF MECHANICAL ENGINEERING  

E-Print Network [OSTI]

, mechanical with nuclear engineering, and medical engineering. Engineers qualified in all these areas play MECHANICAL ENGINEERING MECHANICAL WITH NUCLEAR ENGINEERING MEDICAL ENGINEERING OTHER COURSES TO CONSIDER Entryrequirementsandhowtoapply Modules MedicalEngineering(MEng,BEng) MechanicalwithNuclearEngineering(MEng,BEng) MechanicalEngineering

Dimitrova, Vania

122

Mechanics of collective unfolding  

E-Print Network [OSTI]

Mechanically induced unfolding of passive crosslinkers is a fundamental biological phenomenon encountered across the scales from individual macro-molecules to cytoskeletal actin networks. In this paper we study a conceptual model of athermal load-induced unfolding and use a minimalistic setting allowing one to emphasize the role of long-range interactions while maintaining full analytical transparency. Our model can be viewed as a description of a parallel bundle of N bistable units confined between two shared rigid backbones that are loaded through a series spring. We show that the ground states in this model correspond to synchronized, single phase configurations where all individual units are either folded or unfolded. We then study the fine structure of the wiggly energy landscape along the reaction coordinate linking the two coherent states and describing the optimal mechanism of cooperative unfolding. Quite remarkably, our study shows the fundamental difference in the size and structure of the folding-u...

Caruel, M; Truskinovsky, L

2015-01-01T23:59:59.000Z

123

Mechanics of collective unfolding  

E-Print Network [OSTI]

Mechanically induced unfolding of passive crosslinkers is a fundamental biological phenomenon encountered across the scales from individual macro-molecules to cytoskeletal actin networks. In this paper we study a conceptual model of athermal load-induced unfolding and use a minimalistic setting allowing one to emphasize the role of long-range interactions while maintaining full analytical transparency. Our model can be viewed as a description of a parallel bundle of N bistable units confined between two shared rigid backbones that are loaded through a series spring. We show that the ground states in this model correspond to synchronized, single phase configurations where all individual units are either folded or unfolded. We then study the fine structure of the wiggly energy landscape along the reaction coordinate linking the two coherent states and describing the optimal mechanism of cooperative unfolding. Quite remarkably, our study shows the fundamental difference in the size and structure of the folding-unfolding energy barriers in the hard (fixed displacements) and soft (fixed forces) loading devices which persists in the continuum limit. We argue that both, the synchronization and the non-equivalence of the mechanical responses in hard and soft devices, have their origin in the dominance of long-range interactions. We then apply our minimal model to skeletal muscles where the power-stroke in acto-myosin crossbridges can be interpreted as passive folding. A quantitative analysis of the muscle model shows that the relative rigidity of myosin backbone provides the long-range interaction mechanism allowing the system to effectively synchronize the power-stroke in individual crossbridges even in the presence of thermal fluctuations. In view of the prototypical nature of the proposed model, our general conclusions pertain to a variety of other biological systems where elastic interactions are mediated by effective backbones.

M Caruel; J. -M Allain; L Truskinovsky

2015-01-07T23:59:59.000Z

124

Relativistic viscoelastic fluid mechanics  

E-Print Network [OSTI]

A detailed study is carried out for the relativistic theory of viscoelasticity which was recently constructed on the basis of Onsager's linear nonequilibrium thermodynamics. After rederiving the theory using a local argument with the entropy current, we show that this theory universally reduces to the standard relativistic Navier-Stokes fluid mechanics in the long time limit. Since effects of elasticity are taken into account, the dynamics at short time scales is modified from that given by the Navier-Stokes equations, so that acausal problems intrinsic to relativistic Navier-Stokes fluids are significantly remedied. We in particular show that the wave equations for the propagation of disturbance around a hydrostatic equilibrium in Minkowski spacetime become symmetric hyperbolic for some range of parameters, so that the model is free of acausality problems. This observation suggests that the relativistic viscoelastic model with such parameters can be regarded as a causal completion of relativistic Navier-Stokes fluid mechanics. By adjusting parameters to various values, this theory can treat a wide variety of materials including elastic materials, Maxwell materials, Kelvin-Voigt materials, and (a nonlinearly generalized version of) simplified Israel-Stewart fluids, and thus we expect the theory to be the most universal description of single-component relativistic continuum materials. We also show that the presence of strains and the corresponding change in temperature are naturally unified through the Tolman law in a generally covariant description of continuum mechanics.

Masafumi Fukuma; Yuho Sakatani

2011-09-01T23:59:59.000Z

125

ENGINEERING MECHANICS SEMINARSENGINEERING MECHANICS SEMINARS BIO COMPOSITES FOR AVIATION  

E-Print Network [OSTI]

carbon composite general aviation aircraft); and Manager of Materials and Structures Research at Sikorsky temperature and bio material composite programs. In bio composite material programs Ron frequently worksENGINEERING MECHANICS SEMINARSENGINEERING MECHANICS SEMINARS BIO COMPOSITES FOR AVIATION Ron

Ponce, V. Miguel

126

Efficiency of stripping mechanisms  

E-Print Network [OSTI]

There are several physical processes to remove gas from galaxies in clusters, with subsequent starvation and star formation quenching: tidal interactions between galaxies, or tidal stripping from the cluster potential itself, interactions with the hot intra-cluster medium (ICM) through ram pressure, turbulent or viscous stripping, or also outflows from star formation of nuclear activity, We review the observational evidence for all processes, and numerical simulations of galaxies in clusters which support the respective mechanisms. This allows to compare their relative efficiencies, all along cluster formation.

F. Combes

2003-08-18T23:59:59.000Z

127

Fields and Quantum Mechanics  

E-Print Network [OSTI]

The quantum field theories (QFT) constructed in [1,2] include phenomenology of interest. The constructions approximate: scattering by $1/r$ and Yukawa potentials in non-relativistic approximations; and the first contributing order of the Feynman series for Compton scattering. To have a semi-norm, photon states are constrained to transverse polarizations and for Compton scattering, the constructed cross section deviates at large momentum exchanges from the cross section prediction of the Feynman rules. Discussion includes the incompatibility of canonical quantization with the constructed interacting fields, and the role of interpretations of quantum mechanics in realizing QFT.

Glenn Eric Johnson

2014-12-21T23:59:59.000Z

128

Metal Mechanisms | EMSL  

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 May Jun Jul(Summary)morphinanInformation Desert Southwest Regionat Cornell Batteries & Fuel Cells In ThisMetal Mechanisms Metal

129

Mechanical Operations and Maintenance  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior ofAPS ... Search Button

130

Probable Inference and Quantum Mechanics  

SciTech Connect (OSTI)

In its current very successful interpretation the quantum theory is fundamentally statistical in nature. Although commonly viewed as a probability amplitude whose (complex) square is a probability, the wavefunction or state vector continues to defy consensus as to its exact meaning, primarily because it is not a physical observable. Rather than approach this problem directly, it is suggested that it is first necessary to clarify the precise role of probability theory in quantum mechanics, either as applied to, or as an intrinsic part of the quantum theory. When all is said and done the unsurprising conclusion is that quantum mechanics does not constitute a logic and probability unto itself, but adheres to the long-established rules of classical probability theory while providing a means within itself for calculating the relevant probabilities. In addition, the wavefunction is seen to be a description of the quantum state assigned by an observer based on definite information, such that the same state must be assigned by any other observer based on the same information, in much the same way that probabilities are assigned.

Grandy, W. T. Jr. [Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82070 (United States)

2009-12-08T23:59:59.000Z

131

Classical Mechanics (Prof. P. L. Read)  

E-Print Network [OSTI]

cancellation of internal torques #12;Moment of inertia tensor ! Lx Ly Lz " # $ $ $ % & ' ' ' = mi (ri 2 ( xi xi ) i ) ( mi xi yi i ) ( mi xizi i ) ( mi yi xi i ) mi (ri 2 ( yi yi ) i ) ( mi yizi i ) ( mizi xi i ) ( mizi yi i ) mi (ri 2 ( zizi ) i ) " # $ $ $ $ $ $ % & ' ' ' ' ' ' *x *y *z " # $ $ $ % & ' ' ' ! xi

Read, Peter L.

132

Classical Mechanics (Prof. P. L. Read)  

E-Print Network [OSTI]

based on detailed observations by Tycho Brahe #12;Kepler's 2nd Law 路 Area swept out by radius vector r

Read, Peter L.

133

College of Engineering Mechanical Engineering  

E-Print Network [OSTI]

College of Engineering Mechanical Engineering Core 2.0 Completion Checklist Mechanical Engineering Science IN CHMY 141 (CHEM 131) 6 Research and Creative Experience R EMEC 489R & EMEC 499 R (ME 404R & ME

Dyer, Bill

134

Quantum mechanical stabilization of Minkowski signature wormholes  

SciTech Connect (OSTI)

When one attempts to construct classical wormholes in Minkowski signature Lorentzian spacetimes violations of both the weak energy hypothesis and averaged weak energy hypothesis are encountered. Since the weak energy hypothesis is experimentally known to be violated quantum mechanically, this suggests that a quantum mechanical analysis of Minkowski signature wormholes is in order. In this note I perform a minisuperspace analysis of a simple class of Minkowski signature wormholes. By solving the Wheeler-de Witt equation for pure Einstein gravity on this minisuperspace the quantum mechanical wave function of the wormhole is obtained in closed form. The wormhole is shown to be quantum mechanically stabilized with an average radius of order the Planck length. 8 refs.

Visser, M.

1989-05-19T23:59:59.000Z

135

Lecture notes Introductory fluid mechanics  

E-Print Network [OSTI]

Lecture notes Introductory fluid mechanics Simon J.A. Malham Simon J.A. Malham (22nd February 2013 of fluid mechanics and along the way see lots of interesting applications. 2 Fluid flow 2.1 Flow A material essential to all modern car braking mechanisms. Fluids can be further subcatergorized. There are ideal

Malham, Simon J.A.

136

Lecture notes Ideal fluid mechanics  

E-Print Network [OSTI]

Lecture notes Ideal fluid mechanics Simon J.A. Malham Simon J.A. Malham (6th Feb 2010) Maxwell and in the process learn about the subtleties of fluid mechanics and along the way see lots of interesting are generally incompressible--a feature essential to all modern car braking mechanisms. Fluids can be further

Malham, Simon J.A.

137

Lecture notes Introductory fluid mechanics  

E-Print Network [OSTI]

Lecture notes Introductory fluid mechanics Simon J.A. Malham Simon J.A. Malham (17th March 2014 of fluid mechanics and along the way see lots of interesting applications. 2 Fluid flow, the Continuum are generally incompressible--a feature essential to all modern car braking mechanisms. Fluids can be further

Malham, Simon J.A.

138

Fluid Mechanics 25 March 2009  

E-Print Network [OSTI]

Journal of Fluid Mechanics 25 March 2009 VOLUME 623 Journal of Fluid Mechanics 25 Mar. 2009 VOLUME 623 #12;J. Fluid Mech. (2009), vol. 623, pp. 75颅84. c 2009 Cambridge University Press doi:10.1017/SLCS and the capture region enable analysis of the effect of several physiological and mechanical parameters

Dabiri, John O.

139

Mechanical engineering COLLEGE of ENGINEERING  

E-Print Network [OSTI]

. Mechanical engineering is a broad, versatile and creative discipline concerned with conversion of energyMechanical engineering COLLEGE of ENGINEERING DepartmentofMechanicalEngineering CollegeofEngineering 5050AnthonyWayneDrive Detroit,MI48202 College of engineering t Educating future engineers for 80 years

Berdichevsky, Victor

140

Exploiting mechanical biomarkers in microfluidics  

E-Print Network [OSTI]

Exploiting mechanical biomarkers in microfluidics Xiaole Maoa and Tony Jun Huang*b DOI: 10.1039/c2 mechanical biomarkers in microfluidic devices. This trend makes sense because microfluidic devices often of mechanical biomarker- based microfluidic applications. We believe that these examples are just the tip

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

MASTER OF SCIENCE MECHANICAL ENGINEERING  

E-Print Network [OSTI]

MASTER OF SCIENCE IN MECHANICAL ENGINEERING 75 DEVELOPMENT OF A MODEL TO PREDICT AND ASSESS SURFACE Master of Science in Mechanical Engineering-December 2000 Advisors: Charles N. Calvano, Department of Mechanical Engineering David W. Byers, Naval Surface Warfare Center-Carderock Division Survivability has

142

Mechanics of dexterous manipulation  

E-Print Network [OSTI]

Work . 1. Quasi-Statics ? Classical Analysis Approach 2. Quasi-Statics Variational Approach 3. Dynamics ? Inconsistency and Ambiguity C. Preview 2 4 4 6 8 9 II PROBLEM FORMULATION A. Fundamental Assumptions B. Mathematics . 1. Force... Equilibrium 2. Kinematic Constraints 3. Coulomb Model C, Problem Statement 11 11 12 13 14 14 III SOLUTION APPROACHES AND TIME COMPLEXITIES A. Classical Analysis Approach 1. One Linearly Independent Kinematic Equality 2. Two Linearly Independent...

Zeng, Chang

1991-01-01T23:59:59.000Z

143

Mechanics of Isolated Horizons  

E-Print Network [OSTI]

A set of boundary conditions defining an undistorted, non-rotating isolated horizon are specified in general relativity. A space-time representing a black hole which is itself in equilibrium but whose exterior contains radiation admits such a horizon. However, the definition is applicable in a more general context, such as cosmological horizons. Physically motivated, (quasi-)local definitions of the mass and surface gravity of an isolated horizon are introduced and their properties analyzed. Although their definitions do not refer to infinity, these quantities assume their standard values in the static black hole solutions. Finally, using these definitions, the zeroth and first laws of black hole mechanics are established for isolated horizons.

Abhay Ashtekar; Christopher Beetle; Stephen Fairhurst

1999-11-04T23:59:59.000Z

144

Microfabricated therapeutic actuator mechanisms  

DOE Patents [OSTI]

Electromechanical microstructures (microgrippers), either integrated circuit (IC) silicon-based or precision machined, to extend and improve the application of catheter-based interventional therapies for the repair of aneurysms in the brain or other interventional clinical therapies. These micromechanisms can be specifically applied to release platinum coils or other materials into bulging portions of the blood vessels also known as aneurysms. The ``micro`` size of the release mechanism is necessary since the brain vessels are the smallest in the body. Through a catheter more than one meter long, the micromechanism located at one end of the catheter can be manipulated from the other end thereof. The microgripper (micromechanism) of the invention will also find applications in non-medical areas where a remotely actuated microgripper or similar actuator would be useful or where micro-assembling is needed. 22 figs.

Northrup, M.A.; Ciarlo, D.R.; Lee, A.P.; Krulevitch, P.A.

1997-07-08T23:59:59.000Z

145

Microfabricated therapeutic actuator mechanisms  

DOE Patents [OSTI]

Electromechanical microstructures (microgrippers), either integrated circuit (IC) silicon-based or precision machined, to extend and improve the application of catheter-based interventional therapies for the repair of aneurysms in the brain or other interventional clinical therapies. These micromechanisms can be specifically applied to release platinum coils or other materials into bulging portions of the blood vessels also known as aneurysms. The "micro" size of the release mechanism is necessary since the brain vessels are the smallest in the body. Through a catheter more than one meter long, the micromechanism located at one end of the catheter can be manipulated from the other end thereof. The microgripper (micromechanism) of the invention will also find applications in non-medical areas where a remotely actuated microgripper or similar actuator would be useful or where micro-assembling is needed.

Northrup, Milton A. (Berkeley, CA); Ciarlo, Dino R. (Livermore, CA); Lee, Abraham P. (Walnut Creek, CA); Krulevitch, Peter A. (Los Altos, CA)

1997-01-01T23:59:59.000Z

146

PEBBLES Mechanics Simulation Speedup  

SciTech Connect (OSTI)

Pebble bed reactors contain large numbers of spherical fuel elements arranged randomly. Determining the motion and location of these fuel elements is required for calculating certain parameters of pebble bed reactor operation. These simulations involve hundreds of thousands of pebbles and involve determining the entire core motion as pebbles are recirculated. Single processor algorithms for this are insufficient since they would take decades to centuries of wall-clock time. This paper describes the process of parallelizing and speeding up the PEBBLES pebble mechanics simulation code. Both shared memory programming with the Open Multi-Processing API and distributed memory programming with the Message Passing Interface API are used in simultaneously in this process. A new shared memory lock-less linear time collision detection algorithm is described. This method allows faster detection of pebbles in contact than generic methods. These combine to make full recirculations on AVR sized reactors possible in months of wall clock time.

Joshua J. Cogliati; Abderrafi M. Ougouag

2010-05-01T23:59:59.000Z

147

Vehicle rear suspension mechanism  

SciTech Connect (OSTI)

A vehicle rear suspension mechanism is described which consists of: a suspension member connected with a vehicle body; wheel hub means supporting a rear wheel having a wheel center plane for rotation about a rotating axis; and connecting means for connecting the wheel hub means with the suspension member. The connecting means include ball joint means having a pivot center located forwardly of and below the rotating axis of the rear wheel and connecting the wheel hub means to the suspension member pivotably about the pivot center, first resilient means located between the wheel hub means and the suspension member rearwardly of and above the rotating axis of the rear wheel, and second resilient means located between the wheel hub means and the suspension member forwardly of and above the rotating axis of the rear wheel.

Kijima, T.; Maebayashi, J.

1986-08-05T23:59:59.000Z

148

Mechanically expandable annular seal  

DOE Patents [OSTI]

A mechanically expandable annular reusable seal assembly to form an annular hermetic barrier between two stationary, parallel, and planar containment surfaces is described. A rotatable ring, attached to the first surface, has ring wedges resembling the saw-tooth array of a hole saw. Matching seal wedges are slidably attached to the ring wedges and have their motion restricted to be perpendicular to the second surface. Each seal wedge has a face parallel to the second surface. An annular elastomer seal has a central annular region attached to the seal wedges' parallel faces and has its inner and outer circumferences attached to the first surface. A rotation of the ring extends the elastomer seal's central region perpendicularly towards the second surface to create the fluid tight barrier. A counter rotation removes the barrier. 6 figs.

Gilmore, R.F.

1983-07-19T23:59:59.000Z

149

Mechanisms of chemical phototoxicity  

SciTech Connect (OSTI)

Psoralens in combination with ultraviolet light (PUVA) are phototoxic and potent modulators of epidermal cell growth and differentiation. Using an in vitro cell culture model, the effects of psoralens and UVA light on the growth of epidermal cells were investigated. It was found that psoralen and UVA light interact synergistically to inhibit the growth of cells in culture. This synergism was also observed in the ability of PUVA to inhibit DNA synthesis, decrease cell survival, cause mutations and form psoralen-DNA adducts. Using a cell culture model for the differentiation of melanocytes, PUVA was also found to be a potent inducer of melanogenesis as evidenced by its ability to increase cellular tyrosinase, the enzyme responsible for melanin biosynthesis. Results from these studies indicate that PUVA can induce dramatic alterations in the growth rate and differentiation state of cells at dosage levels which are associated with minimal DNA damage. These findings are in conflict with the general assumption that the biological effects of psoralens and UVA light are associated with their ability to bind covalently to and cross-link DNA. Therefore, the author investigated the possibility that sites of action, other than DNA, are involved in the mechanism(s) by which photoactivated psoralens modulate epidermal cell growth and differentiation. The author's laboratory has found that mammalian epidermal cells contain specific, saturable, high-affinity binding sites for the psoralens that are distinct from DNA. This receptor for the psoralens, photolabeled with ({sup 3}H)-8-methoxysporalen, was visualized following sodium dodecyl sulfatepolyacrylamide gel electrophoresis. The psoralen receptor is shown to be a 22,000 dalton protein located in nonnuclear fractions of cell extracts.

Yurkow, E.J.

1989-01-01T23:59:59.000Z

150

Montana State University 1 Mechanical Engineering  

E-Print Network [OSTI]

mechanics, materials science, manufacturing processes, thermodynamics, heat transfer, fluid mechanicsMontana State University 1 Mechanical Engineering The specific mission of the undergraduate Mechanical Engineering (ME) program is to prepare students for successful mechanical engineering

Maxwell, Bruce D.

151

Quantum Mechanical Coherence, Resonance, and Mind  

E-Print Network [OSTI]

Norbert Wiener and J.B.S. Haldane suggested during the early thirties that the profound changes in our conception of matter entailed by quantum theory opens the way for our thoughts, and other experiential or mind-like qualities, to play a role in nature that is causally interactive and effective, rather than purely epiphenomenal, as required by classical mechanics. The mathematical basis of this suggestion is described here, and it is then shown how, by giving mind this efficacious role in natural process, the classical character of our perceptions of the quantum universe can be seen to be a consequence of evolutionary pressures for the survival of the species.

Henry P. Stapp

1995-04-04T23:59:59.000Z

152

Testing foundations of quantum mechanics with photons  

E-Print Network [OSTI]

The foundational ideas of quantum mechanics continue to give rise to counterintuitive theories and physical effects that are in conflict with a classical description of Nature. Experiments with light at the single photon level have historically been at the forefront of tests of fundamental quantum theory and new developments in photonics engineering continue to enable new experiments. Here we review recent photonic experiments to test two foundational themes in quantum mechanics: wave-particle duality, central to recent complementarity and delayed-choice experiments; and Bell nonlocality where recent theoretical and technological advances have allowed all controversial loopholes to be separately addressed in different photonics experiments.

Peter Shadbolt; Jonathan C. F. Matthews; Anthony Laing; Jeremy L. O'Brien

2015-01-15T23:59:59.000Z

153

Statistical Mechanics and Quantum Cosmology  

E-Print Network [OSTI]

Statistical mechanical concepts and processes such as decoherence, correlation, and dissipation can prove to be of basic importance to understanding some fundamental issues of quantum cosmology and theoretical physics such as the choice of initial states, quantum to classical transition and the emergence of time. Here we summarize our effort in 1) constructing a unified theoretical framework using techniques in interacting quantum field theory such as influence functional and coarse-grained effective action to discuss the interplay of noise, fluctuation, dissipation and decoherence; and 2) illustrating how these concepts when applied to quantum cosmology can alter the conventional views on some basic issues. Two questions we address are 1) the validity of minisuperspace truncation, which is usually assumed without proof in most discussions, and 2) the relevance of specific initial conditions, which is the prevailing view of the past decade. We also mention how some current ideas in chaotic dynamics, dissipative collective dynamics and complexity can alter our view of the quantum nature of the universe.

B. L. Hu

1995-11-29T23:59:59.000Z

154

Bohmian Mechanics with Discrete Operators  

E-Print Network [OSTI]

A deterministic Bohmian mechanics for operators with continuous and discrete spectra is presented. Randomness enters only through initial conditions. Operators with discrete spectra are incorporated into Bohmian mechanics by associating with each operator a continuous variable in which a finite range of the continuous variable correspond to the same discrete eigenvalue. In this way Bohmian mechanics can handle the creation and annihilation of particles. Examples are given and generalizations are discussed.

R. A. Hyman; Shane A. Caldwell; Edward Dalton

2004-01-02T23:59:59.000Z

155

Parallel GPU Algorithms for Mechanical CAD  

E-Print Network [OSTI]

of California, Berkeley, Mechanical Engineering Department,GPU Algorithms for Mechanical CAD by Adarsh Krishnamurthy Aof Philosophy in Engineering - Mechanical Engineering in the

Krishnamurthy, Adarsh

2010-01-01T23:59:59.000Z

156

Mechanical and Manufacturing Engineering Mechatronics Engineering Minor  

E-Print Network [OSTI]

Mechanical and Manufacturing Engineering Mechatronics Engineering Minor Students pursuing a BSc in mechanical or manufacturing engineering have experience and entrepreneurship. Mechatronics is the synergistic combination of mechanical

Calgary, University of

157

Mechanical Behaviors of Alloys From First Principles  

E-Print Network [OSTI]

Some Backgrounds on The Quantum Mechanical Stresses . . .3.2.2 The Quantum Mechanical Stresses and The Generalized3.2.3 Quantum-Mechanical

Hanlumyuang, Yuranan

2011-01-01T23:59:59.000Z

158

MECHANICAL PROPERTIES OF POROUS PNZT POLYCRYSTALLINE CERAMICS  

E-Print Network [OSTI]

F. P. Knudsen, "Dependence of Mechanical Strength of BrittleMicrostruc- ture on the Mechanical Properties of Ceramics,"of Porosity on the Mechanical Properties of Lead Zirconate-

Biswas, D.R.

2010-01-01T23:59:59.000Z

159

Statistical Mechanical Models and Topological Color Codes  

E-Print Network [OSTI]

We find that the overlapping of a topological quantum color code state, representing a quantum memory, with a factorized state of qubits can be written as the partition function of a 3-body classical Ising model on triangular or Union Jack lattices. This mapping allows us to test that different computational capabilities of color codes correspond to qualitatively different universality classes of their associated classical spin models. By generalizing these statistical mechanical models for arbitrary inhomogeneous and complex couplings, it is possible to study a measurement-based quantum computation with a color code state and we find that their classical simulatability remains an open problem. We complement the meaurement-based computation with the construction of a cluster state that yields the topological color code and this also gives the possibility to represent statistical models with external magnetic fields.

H. Bombin; M. A. Martin-Delgado

2007-11-03T23:59:59.000Z

160

INL '@work' heavy equipment mechanic  

ScienceCinema (OSTI)

INL's Cad Christensen is a heavy equipment mechanic. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

Christensen, Cad

2013-05-28T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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.


161

Romanian sources on applied mechanics  

SciTech Connect (OSTI)

This note provides a list of journals and recent books published in Romania covering topics in applied mechanics, with information on bow to obtain them.

Popescu, M.E. [Civil Engineering Inst., Bucharest (Romania)

1992-06-01T23:59:59.000Z

162

Mechanical Behavior of Indium Nanostructures  

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

Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended...

163

COMPLEX BIOLOGICAL MECHANISMS: CYCLIC, OSCILLATORY,  

E-Print Network [OSTI]

COMPLEX BIOLOGICAL MECHANISMS: CYCLIC, OSCILLATORY, AND AUTONOMOUS William Bechtel and Adele- nomological framework and its focus on laws as the primary explanatory vehicle; for them, a scientific

Bechtel, William

164

Relativistic fluid mechanics, Kahler manifolds and supersymmetry  

E-Print Network [OSTI]

We propose an alternative for the Clebsch decomposition of currents in fluid mechanics, in terms of complex potentials taking values in a Kahler manifold. We reformulate classical relativistic fluid mechanics in terms of these complex potentials and rederive the existence of an infinite set of conserved currents. We perform a canonical analysis to find the explicit form of the algebra of conserved charges. The Kahler-space formulation of the theory has a natural supersymmetric extension in 4-D space-time. It contains a conserved current, but also a number of additional fields complicating the interpretation. Nevertheless, we show that an infinite set of conserved currents emerges in the vacuum sector of the additional fields. This sector can therefore be identified with a regime of supersymmetric fluid mechanics. Explicit expressions for the current and the density are obtained.

T. S. Nyawelo; J. W. van Holten; S. Groot Nibbelink

2003-09-11T23:59:59.000Z

165

Mechanical Engineering Professional Electives Policy  

E-Print Network [OSTI]

Mechanical Engineering Professional Electives Policy 3/22/11 2004-2006 & 2006-2008 Catalogs Management (d) F EMEC 403 (ME 411) CAE IV: Design Integration S ETME 430 (ME 435) Fluid Power Systems Design (d) Must successfully complete EMEC 445 before taking EELE 321 S EGEN 415 (EM 415) Advanced Mechanics

Dyer, Bill

166

Axiomatization of Mechanics  

E-Print Network [OSTI]

The problem of axiomatization of physics formulated by Hilbert as early as 1900 and known as the Sixth Problem of Hilbert is nowadays even more topical than at the moment of its formulation. Axiomatic inconsistency of classic, quantum, and geometrized relativistic physics of the general relativistic theory does not in the least fade away, but on the contrary, becomes more pronounced each year. This naturally evokes the following questions: 1. Is it possible, without drastically changing the mathematics apparatus, to set up the axiomatics of physics so as to transform physics, being presently a multitude of unmatched theories with inconsistent axiomatics, into an integrated science? 2. Is it possible, maybe through expanding their scopes, to generalize of transform the existing axiomatics into an integral system of axioms in such a manner that existing axiomatics of inconsistent theories would follow there from as a particular case?

T. F. Kamalov

2010-11-18T23:59:59.000Z

167

Montana State University 1 Mechanical Engineering  

E-Print Network [OSTI]

, the mechanical engineering technologist provides the professional services needed in transforming the resultsMontana State University 1 Mechanical Engineering Technology The mission of the Mechanical Engineering Technology (MET) program is to prepare students for successful Mechanical Engineering

Maxwell, Bruce D.

168

UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering  

E-Print Network [OSTI]

engineering (for example, computer-aided-design and manufacturing (CAD/CAM), energy engineering, mechanical1 UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering and Applied Mechanics Engineering and Applied Mechanics? ........................................................................3

Plotkin, Joshua B.

169

Mechanical Engineering Department 06 November 2013  

E-Print Network [OSTI]

Mechanical Engineering Department Lecture 03 06 November 2013 WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT Optical Metrology and NDT ME-593L, B'2013 #12;Mechanical Engineering Possible longitudinal resonant modes (cavity length = L) #12;Mechanical Engineering Department Lasers

Furlong, Cosme

170

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT STRESS ANALYSIS ES-2502, C'2012 Lecture 15: 07 February 2012 #12;Mechanical Engineering Department Popova tpopova@wpi.edu #12;Mechanical Engineering Department Stress concentrations Ripping open candy

Furlong, Cosme

171

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT STRESS ANALYSIS ES-2502, C'2012 Lecture 20: 20 February 2012 #12;Mechanical Engineering Department Popova tpopova@wpi.edu #12;Mechanical Engineering Department Bending Deformation of a component subjected

Furlong, Cosme

172

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT STRESS ANALYSIS ES-2502, C'2012 Lecture 14: 06 February 2012 #12;Mechanical Engineering Department Popova tpopova@wpi.edu #12;Mechanical Engineering Department Stress concentrations Ripping open candy

Furlong, Cosme

173

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, November 14th, 2013 12:00 颅 12:50 PM Room 1106 Mechanical Engineering Building MECHANICAL MICRO-MANUFACTURING RESEARCH @ CARNEGIE MELLON UNIVERSITY BURAK OZDOGANLAR, CARNEGIE MELLON UNIVERSITY Abstract: Mechanical

Wisconsin at Madison, University of

174

Mechanical and Manufacturing Engineering Petroleum Engineering Minor  

E-Print Network [OSTI]

of Chemical and Petroleum Engineering for their petroleum engineering minor. As well, mechanical engineeringMechanical and Manufacturing Engineering Petroleum Engineering Minor The Department of Mechanical and Manufacturing Engineering offers a minor in petroleum engineering within the mechanical engineering major

Calgary, University of

175

Mechanical Characterization of Fuel Injector Piezoactuators and...  

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

Mechanical Characterization of Fuel Injector Piezoactuators and their Piezoceramics Mechanical Characterization of Fuel Injector Piezoactuators and their Piezoceramics 2007 Diesel...

176

Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical,  

E-Print Network [OSTI]

skills in the areas of mechanics, thermodynamics, fluid mechanics, heat transfer, materials and automatic including control of turbulence, emerging fuel cell technologies, computational fluid mechanics, ground20 Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical

Rohs, Remo

177

Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical, and electronic  

E-Print Network [OSTI]

skills in the areas of mechanics, thermodynamics, fluid mechanics, heat transfer, materials and automatic including control of turbulence, emerging fuel cell technologies, computational fluid mechanics, ground20 Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical

Rohs, Remo

178

Aerospace and Mechanical Engineers design and build unique, complex mechanical-optical-  

E-Print Network [OSTI]

of mechanics, thermodynamics, fluid mechanics, heat transfer, materials and automatic controls. Our graduates including control of turbulence, emerging fuel cell technologies, computational fluid mechanics, ground20 Aerospace and Mechanical Engineers design and build unique, complex mechanical

Rohs, Remo

179

Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical,  

E-Print Network [OSTI]

20 Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical, far underground, and deep inside the intricacies of our own bodies. Aerospace and Mechanical skills in the areas of mechanics, thermodynamics, fluid mechanics, heat transfer, materials and automatic

Rohs, Remo

180

Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical, and  

E-Print Network [OSTI]

20 Aerospace and Mechanical Engineers design and build unique, complex mechanical, optical, far underground, and deep inside the intricacies of our own bodies. Aerospace and Mechanical skills in the areas of mechanics, thermodynamics, fluid mechanics, heat transfer, materials and automatic

Rohs, Remo

Note: This page contains sample records for the topic "mechanics classical mechanics" 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.


181

Phase space quantum mechanics - Direct  

SciTech Connect (OSTI)

Conventional approach to quantum mechanics in phase space (q,p), is to take the operator based quantum mechanics of Schroedinger, or an equivalent, and assign a c-number function in phase space to it. We propose to begin with a higher level of abstraction, in which the independence and the symmetric role of q and p is maintained throughout, and at once arrive at phase space state functions. Upon reduction to the q- or p-space the proposed formalism gives the conventional quantum mechanics, however, with a definite rule for ordering of factors of noncommuting observables. Further conceptual and practical merits of the formalism are demonstrated throughout the text.

Nasiri, S.; Sobouti, Y.; Taati, F. [Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, Zanjan University, Zanjan (Iran); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, University of Kurdistan, D-78457 Sanadaj (Iran)

2006-09-15T23:59:59.000Z

182

Free will and quantum mechanics  

E-Print Network [OSTI]

A simple example is provided showing that violation of free will allows to reproduce the quantum mechanical predictions, and that the Clauser-Horne parameter can take the maximum value 4 for a proper choice.

Antonio Di Lorenzo

2011-05-05T23:59:59.000Z

183

Mechanism design with approximate types  

E-Print Network [OSTI]

In mechanism design, we replace the strong assumption that each player knows his own payoff type exactly with the more realistic assumption that he knows it only approximately: each player i only knows that his true type ...

Zhu, Zeyuan Allen

2012-01-01T23:59:59.000Z

184

Renewable Auction Mechanism (RAM) (California)  

Broader source: Energy.gov [DOE]

The Renewable Auction Mechanism (RAM), approved by the California Public Utilities Commission (CPUC) in December 2010, is expected to result in 1,299 megawatts (MW) of new distributed generation...

185

The Newton Wonder in Mechanics  

E-Print Network [OSTI]

Application of Newton's ideas from "Principia" gives many new results in mechanics. Here we explore the question ``What form of extra force will maintain the magnitude of a vector constant of the motion while changing its direction?''

Donald Lynden-Bell

2000-07-11T23:59:59.000Z

186

Mechanical Dissipation in Silicon Flexures  

E-Print Network [OSTI]

The thermo-mechanical properties of silicon make it of significant interest as a possible material for mirror substrates and suspension elements for future long-baseline gravitational wave detectors. The mechanical dissipation in 92um thick single-crystal silicon cantilevers has been observed over the temperature range 85 K to 300 K, with dissipation approaching levels down to phi = 4.4E-7.

S. Reid; G. Cagnoli; D. R. M. Crooks; J. Hough; P. Murray; S. Rowan; M. M. Fejer; R. Route; S. Zappe

2005-10-28T23:59:59.000Z

187

Calibration of Cotton Planting Mechanisms.  

E-Print Network [OSTI]

per foot. To obtain a perfect stand of one plant to Foot, a minimum of 1 to a maximum of 11 plants per foot wonld have to be thinned out. The number for picker wheel- drop planting mechanisms ranged from a minimum of 2 to a maxi- mum of 27 plants... per foot, requiring the removal of from 1 to 26 nlants per foot to leave one plant per foot. CONTENTS Introduction History of cotton planter development ------------.---------------------------------- Cottonseed planting mechanisms Requirements...

Smith, H. P. (Harris Pearson); Byrom, Mills H. (Mills Herbert)

1936-01-01T23:59:59.000Z

188

Optomechanical conversion by mechanical turbines  

E-Print Network [OSTI]

Liquid crystal elastomers are rubbers with liquid crystal order. They contract along their nematic director when heated or illuminated. The shape changes are large and occur in a relatively narrow temperature interval, or at low illumination, around the nematic-isotropic transition. We present a conceptual design of a mechanical, turbine-based engine using photo-active liquid crystal elastomers to extract mechanical work from light. Its efficiency is estimated to be 40%.

Milos Knezevic; Mark Warner

2014-11-02T23:59:59.000Z

189

Quantum Mechanics of a Rotating Billiard  

E-Print Network [OSTI]

Integrability of a square billiard is spontaneously broken as it rotates about one of its corners. The system becomes quasi-integrable where the invariant tori are broken with respect to a certain parameter, $\\lambda = 2E/\\omega^{2}$ where E is the energy of the particle inside the billiard and $\\omega$ is the angular frequency of rotation of billiard. We study the system classically and quantum mechanically in view of obtaining a correspondence in the two descriptions. Classical phase space in Poincar\\'{e} surface of section shows transition from regular to chaotic motion as the parameter $\\lambda$ is decreased. In the Quantum counterpart, the spectral statistics shows a transition from Poisson to Wigner distribution as the system turns chaotic with decrease in $\\lambda$. The wavefunction statistics however show breakdown of time-reversal symmetry as $\\lambda$ decreases.

Nandan Jha; Sudhir R. Jain

2014-06-12T23:59:59.000Z

190

Enhancement Mechanisms of Low Energy Nuclear Reactions  

E-Print Network [OSTI]

The review of possible stimulation mechanisms of LENR (low energy nuclear reaction) is represented. We have concluded that transmutation of nuclei at low energies and excess heat are possible in the framework of the modern physical theory - the universal resonance synchronization principle [1] and based on its different enhancement mechanisms of reaction rates are responsible for these processes [2]. The excitation and ionization of atoms may play role as a trigger for LENR. Superlow energy of external fields may stimulate LENR [3]. Investigation of this phenomenon requires knowledge of different branches of science: nuclear and atomic physics, chemistry and electrochemistry, condensed matter and solid state physics,... The results of this research field can provide a new source of energy, substances and technologies. The puzzle of poor reproducibility of experimental data is due to the fact that LENR occurs in open systems and it is extremely sensitive to parameters of external fields and systems. Classical ...

Gareev, F A

2005-01-01T23:59:59.000Z

191

A note on the foundations of mechanics  

E-Print Network [OSTI]

This short note is intended to review the foundations of mechanics, trying to present them with the greatest mathematical and conceptual clarity. It was attempted to remove most of inessential, even parasitic issues, which can hide the true nature of basic principles. The pursuit of that goal results in an improved understanding of some topics such as constrained systems, the nature of time or the relativistic forces. The Sr\\"odinger and Klein-Gordon equations appear as conditions fulfilled by certain types of classical solutions of the field equations although the meaning of quantum equations is not, even remotely, exhausted by these cases. A part of this note comes from previous works.

Ricardo J. Alonso-Blanco; Jes鷖 Mu駉z-D韆z

2014-04-04T23:59:59.000Z

192

A Global Optimization Approach to Quantum Mechanics  

E-Print Network [OSTI]

This paper presents a global optimization approach to quantum mechanics, which describes the most fundamental dynamics of the universe. It suggests that the wave-like behavior of (sub)atomic particles could be the critical characteristic of a global optimization method deployed by nature so that (sub)atomic systems can find their ground states corresponding to the global minimum of some energy function associated with the system. The classic time-independent Schrodinger equation is shown to be derivable from the global optimization method to support this argument.

Xiaofei Huang

2006-05-25T23:59:59.000Z

193

Quantum Mechanical Effects in Gravitational Collapse  

E-Print Network [OSTI]

In this thesis we investigate quantum mechanical effects to various aspects of gravitational collapse. These quantum mechanical effects are implemented in the context of the Functional Schr\\"odinger formalism. The Functional Schr\\"odinger formalism allows us to investigate the time-dependent evolutions of the quantum mechanical effects, which is beyond the scope of the usual methods used to investigate the quantum mechanical corrections of gravitational collapse. Utilizing the time-dependent nature of the Functional Schr\\"odinger formalism, we study the quantization of a spherically symmetric domain wall from the view point of an asymptotic and infalling observer, in the absence of radiation. To build a more realistic picture, we then study the time-dependent nature of the induced radiation during the collapse using a semi-classical approach. Using the domain wall and the induced radiation, we then study the time-dependent evolution of the entropy of the domain wall. Finally we make some remarks about the possible inclusion of backreaction into the system.

Eric Greenwood

2010-01-12T23:59:59.000Z

194

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT STRESS ANALYSIS ES-2502, C'2012 Lecture 27: Summary 29 February 2012 #12;Mechanical Engineering@wpi.edu Tatiana Popova tpopova@wpi.edu #12;Mechanical Engineering Department Summary #12;Mechanical Engineering

Furlong, Cosme

195

Majorana Electroformed Copper Mechanical Analysis  

SciTech Connect (OSTI)

The MAJORANA DEMONSTRATOR is a large array of ultra-low background high-purity germanium detectors, enriched in 76Ge, designed to search for zero-neutrino double-beta decay. The DEMONSTRATOR will utilize ultra high purity electroformed copper for a variety of detector components and shielding. A preliminary mechanical evaluation was performed on the Majorana prototype electroformed copper material. Several samples were removed from a variety of positions on the mandrel. Tensile testing, optical metallography, scanning electron microscopy, and hardness testing were conducted to evaluate mechanical response. Analyses carried out on the Majorana prototype copper to this point show consistent mechanical response from a variety of test locations. Evaluation shows the copper meets or exceeds the design specifications.

Overman, Nicole R.; Overman, Cory T.; Kafentzis, Tyler A.; Edwards, Danny J.; Hoppe, Eric W.

2012-04-30T23:59:59.000Z

196

Mechanical instability at finite temperature  

E-Print Network [OSTI]

Many physical systems including lattices near structural phase transitions, glasses, jammed solids, and bio-polymer gels have coordination numbers that place them at the edge of mechanical instability. Their properties are determined by an interplay between soft mechanical modes and thermal fluctuations. In this paper we investigate a simple square-lattice model with a $\\phi^4$ potential between next-nearest-neighbor sites whose quadratic coefficient $\\kappa$ can be tuned from positive negative. We show that its zero-temperature ground state for $\\kappa power-law behavior of the shear modulus as a function of temperature. We expect our study to provide a general framework for the study of finite-temperature mechanical and phase behavior of other systems with a large number of floppy modes.

Xiaoming Mao; Anton Souslov; Carlos I. Mendoza; T. C. Lubensky

2014-07-08T23:59:59.000Z

197

University of Saskatchewan Department of Mechanical Engineering  

E-Print Network [OSTI]

University of Saskatchewan Department of Mechanical Engineering Standard Operating Procedure # HT.............................................................................................................. 10 #12;University of Saskatchewan Department of Mechanical Engineering Standard Operating Procedure of Saskatchewan Department of Mechanical Engineering Standard Operating Procedure # HT0002 Page 3 of 10 2

Saskatchewan, University of

198

Mechanical Engineering Colloquium September 19, 2014  

E-Print Network [OSTI]

Mechanical Engineering Colloquium September 19, 2014 Macdonald Engineering Building (MD) 267 from 11 - 12 pm Professor Harry Dankowicz Department of Mechanical Science and Engineering University of Illinois, Urbana-Champaign Discontinuity-induced Bifurcations in Models of Mechanical Contact, Capillary

Barthelat, Francois

199

Mechanical Computation: its Computational Complexity and Technologies  

E-Print Network [OSTI]

Mechanical Computation: its Computational Complexity and Technologies Chapter, Encyclopedia Importance II. Introduction to Computational Complexity III. Computational Complexity of Mechanical Devices and their Movement Problems IV. Concrete Mechanical Computing Devices V. Future Directions VI. Bibliography Glossary

Reif, John H.

200

1 INTRODUCTION Researches in unsaturated soil mechanics  

E-Print Network [OSTI]

1 INTRODUCTION Researches in unsaturated soil mechanics considerably developed in the past decades exchanges during shearing were also monitored, and Experimental unsaturated soil mechanics Pierre Delage- mechanical behaviour of unsaturated soils are presented. The water retention properties of unsaturated soils

Paris-Sud XI, Universit茅 de

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Optomechanical conversion by mechanical turbines  

E-Print Network [OSTI]

, 揚hotomobile polymer materials: towards light-driven plastic motors, Angew. Chem. Int. Ed. 47, 4986 (2008). [2] Y. Geng, P. L. Almeida, S. N. Fernandes, C. Cheng, P. Palffy-Muhoray, and M. H. Godinho, 揂 cellulose liquid crystal motor: a steam engine... design of a mechanical, turbine-based engine using photo-active liquid crystal elastomers to extract mechanical work from light. Its efficiency is estimated to be 40%. PACS numbers: 61.30.-v, 61.41.+e, 83.80.Va, 88.40.-j I. INTRODUCTION We propose a...

Kne瀍vi?, Milo; Warner, Mark

2014-10-30T23:59:59.000Z

202

Design considerations for mechanical snubbers  

SciTech Connect (OSTI)

The use of mechanical snubbers to restrain piping during an earthquake event is becoming more common in design of nuclear power plants. The design considerations and qualification procedures for mechanical snubbers used on the Fast Flux Test Facility will be presented. Design precautions and requirements for both normal operation and seismic operation are necessary. Effects of environmental vibration (nonseismic) induced through the piping by pump shaft imbalance and fluid flow oscillations will be addressed. Also, the snubber dynamic characteristics of interest to design and snubber design application considerations will be discussed.

Severud, L.K.; Summers, G.D.

1980-03-01T23:59:59.000Z

203

Mechanical Behavior of Indium Nanostructures  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior of IndiumMechanical Behavior of

204

Mechanical Behavior of Indium Nanostructures  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior of IndiumMechanical Behavior

205

Mechanical Behavior of Indium Nanostructures  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior of IndiumMechanical

206

Interfacing ultracold atoms and mechanical oscillators.  

E-Print Network [OSTI]

??In this thesis I present experiments investigating controlled coupling between mechanical oscillators and ultracold atoms. I report on three different coupling mechanisms. In a first (more)

Camerer, Stephan

2011-01-01T23:59:59.000Z

207

Quantum Mechanical Description of Fluid Dynamics  

E-Print Network [OSTI]

In this paper, we deal with fluid motion in terms of quantum mechanics. Mechanism accounting for the appearance of quantum behavior is discussed.

H. Y. Cui

2001-08-16T23:59:59.000Z

208

Thermoelectric Materials By Design: Mechanical Reliability (Agreement...  

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

By Design: Mechanical Reliability (Agreement 14957) Thermoelectric Materials By Design: Mechanical Reliability (Agreement 14957) Presentation from the U.S. DOE Office of Vehicle...

209

Electrical and Mechanical Properties of Graphene  

E-Print Network [OSTI]

Nano Letters, 5 [67] G. Liu, Electrical Transport in CarbonOF CALIFORNIA RIVERSIDE Electrical and Mechanical PropertiesOF THE DISSERTATION Electrical and Mechanical Properties of

Bao, Wenzhong

2011-01-01T23:59:59.000Z

210

A MECHANICAL STRAIN SENSOR FOR POLYMERIC MATERIALS  

E-Print Network [OSTI]

A MECHANICAL STRAIN SENSOR FOR POLYMERIC MATERIALS AND PHOTOPHYSICAL INVESTIGATIONS OF LARGE ...................................................................................................... 17 A MECHANICAL STRAIN SENSOR FOR POLYMERIC MATERIALS ....... 21 3.1 Introduction

211

Mechanical Engineering Division Head | Princeton Plasma Physics...  

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

design and analysis of large, complex state-of-the-art electromagnetic and mechanical systems used for experimental magnetic fusion research. The Mechanical Engineering...

212

Enforcement Letter, Geiger Brothers Mechanical Contractors, INC...  

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

Geiger Brothers Mechanical Contractors, INC - March 26, 2010 Enforcement Letter, Geiger Brothers Mechanical Contractors, INC - March 26, 2010 March 26, 2010 Issued to Geiger...

213

Facilities Mechanical CADD Designer | Princeton Plasma Physics...  

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

Facilities Mechanical CADD Designer Department: Engineering Supervisor(s): Steve Raftopolous Staff: Senior Lab & Shop 2 Requisition Number: 1400934 The Mechanical CADD Designer...

214

Department of Mechanical Engineering PENNPENNSSTATETATE  

E-Print Network [OSTI]

Frequency spectra of pressure oscillations in unstable combustors TimeElapsed Frequency #12;Department-mode expansion: Classical Approach for Combustor Stability Analysis (1/2)Classical Approach for Combustor PENNPENNSSTATETATE Classical Approach for Combustor Stability Analysis (2/2)Classical Approach for Combustor

Yang, Vigor

215

Mechanical scriber for semiconductor devices  

DOE Patents [OSTI]

A mechanical scriber using a scribing tip, such as a diamond, provides controlled scriber forces with a spring-loaded compound lever arrangement. The scribing force and range of scribing depth are adjusted by a pair of adjustable micrometer heads. A semiconductor device, such as a multilayer solar cell, can be formed into scribed strips at each layer.

Lin, Peter T. (East Brunswick, NJ)

1985-01-01T23:59:59.000Z

216

Mechanical scriber for semiconductor devices  

DOE Patents [OSTI]

A mechanical scriber using a scribing tip, such as a diamond, provides controlled scriber forces with a spring-loaded compound lever arrangement. The scribing force and range of scribing depth are adjusted by a pair of adjustable micrometer heads. A semiconductor device, such as a multilayer solar cell, can be formed into scribed strips at each layer. 5 figs.

Lin, P.T.

1985-03-05T23:59:59.000Z

217

From Quantum Mechanics to Thermodynamics?  

E-Print Network [OSTI]

From Quantum Mechanics to Thermodynamics? Dresden, 22.11.2004 Jochen Gemmer Universit╝t Osnabr to thermodynamical behavior Quantum approach to thermodynamical behavior The route to equilibrium Summary of thermodynamical behavior entirely on the basis of Hamilton models and Schr╫dinger-type quantum dynamics. define

Steinhoff, Heinz-J黵gen

218

Battery Vent Mechanism And Method  

DOE Patents [OSTI]

Disclosed herein is a venting mechanism for a battery. The venting mechanism includes a battery vent structure which is located on the battery cover and may be integrally formed therewith. The venting mechanism includes an opening extending through the battery cover such that the opening communicates with a plurality of battery cells located within the battery case. The venting mechanism also includes a vent manifold which attaches to the battery vent structure. The vent manifold includes a first opening which communicates with the battery vent structure opening and second and third openings which allow the vent manifold to be connected to two separate conduits. In this manner, a plurality of batteries may be interconnected for venting purposes, thus eliminating the need to provide separate vent lines for each battery. The vent manifold may be attached to the battery vent structure by a spin-welding technique. To facilitate this technique, the vent manifold may be provided with a flange portion which fits into a corresponding groove portion on the battery vent structure. The vent manifold includes an internal chamber which is large enough to completely house a conventional battery flame arrester and overpressure safety valve. In this manner, the vent manifold, when installed, lessens the likelihood of tampering with the flame arrester and safety valve.

Ching, Larry K. W. (Littleton, CO)

2000-02-15T23:59:59.000Z

219

ETC With a GIM Mechanism  

E-Print Network [OSTI]

We construct an extended technicolor model of quarks and leptons which preserves a GIM mechanism. Furthermore, there is only a minimal technicolor sector, in accordance with recent precision measurements of electroweak parameters. We also show how to incorporate custodial SU(2) and massless neutrinos into such a model.

L. Randall

1992-10-13T23:59:59.000Z

220

SCIENCE CHINA Physics, Mechanics & Astronomy  

E-Print Network [OSTI]

SCIENCE CHINA Physics, Mechanics & Astronomy 漏 Science China Press and Springer-Verlag Berlin for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China. Sci China-Phys Mech Astron, 2013, 56: 207221, doi: 10.1007/s11433-012-4970-8 1 Introduction

Zhang, Guangyu

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Nonlinear friction in quantum mechanics  

E-Print Network [OSTI]

The effect of nonlinear friction forces in quantum mechanics is studied via dissipative Madelung hydrodynamics. A new thermo-quantum diffusion equation is derived, which is solved for the particular case of quantum Brownian motion with a cubic friction. It is extended also by a chemical reaction term to describe quantum reaction-diffusion systems with nonlinear friction as well.

Roumen Tsekov

2010-03-01T23:59:59.000Z

222

Mechanical Engineering Department Seminar Series  

E-Print Network [OSTI]

璏adison as an Honorary Fellow in 2012 after retiring from General Motors Research & DevelopmentMechanical Engineering Department Seminar Series Ignition and Flame Growth in Spray-Guided Stratified-Charge Gasoline Engines Dr. Todd Fansler Engine Research Center University of Wisconsin - Madison

Papalambros, Panos

223

The Mechanical Harvesting of Cotton.  

E-Print Network [OSTI]

TEXAS AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIRECTOR COLLEGE STATION. BRAZOS COUNTY, TEXAS --- - . - - -- BULLETIN NO. 452 AUGUST, 1932 DIVISION OF AGRICULTURAL ENGINEERING The Mechanical Harvesting of Cot...~eration with U. S. Department of Agriculture. CONTENTS w -- ( Z Relat uevel V Ackn Sumn -. Page reduction 5 tory of the Development of Cotton Harvesters 5 Picker Type 6 Thresher Type 11 Pneumatic Type ---_-_---.--------------------------2...

Smith, H. P.; Killough, D. T.; Byrom, M. H.; Scoates, D.; Jones, D. L.

1932-01-01T23:59:59.000Z

224

All are welcome! Mechanical Engineering  

E-Print Network [OSTI]

Mechanical Engineering Seminar Room E547 Bobbin Friction Stir Welding: Process Optimisation for Joining Wet-Deck Panels in Marine Applications Mohammad Sued, UC ME PhD-cand. Abstract: Friction stir welding (FSW although BFSW process and conventional friction stir welding (CFSW) process are similar but yet

Hickman, Mark

225

Senior Mechanical Engineer Company Description  

E-Print Network [OSTI]

programs, such as ProE Mechanism, when applicable. 路 Perform static, dynamic, vibration, thermal, and other Analysis) and/or other process tools when applicable. 路 Lead projects and work and coordinate work and in a team environment on a variety of products. If you feel you meet these requirements, please forward your

Kostic, Milivoje M.

226

Mechanical and Industrial Engineering John Stuart  

E-Print Network [OSTI]

Mechanical and Industrial Engineering John Stuart Paul Washburn Co-Chairs MIE IAB Meeting #12;2Mechanical and Industrial Engineering Dean Tim Anderson #12;3Mechanical and Industrial Engineering Strategic vision for growing College Goal Method Current resources #12;4Mechanical and Industrial Engineering

Mountziaris, T. J.

227

MechanicalEngineering Colloquium The Department of  

E-Print Network [OSTI]

.D. degree in March 2015. Monica's research interests lie at the intersection between fluid mechanicsMechanicalEngineering Colloquium The Department of Mechanical Engineering PRESENTS Monica Wilhelmus of individual swimming jellyfish have demonstrated the so-called Darwinian drift mechanism that enables large

228

UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering  

E-Print Network [OSTI]

engineering (for example, computer-aided-design and manufacturing (CAD/CAM), energy engineering, mechanicalUNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering and Applied Mechanics University of Pennsylvania September 2009 www.me.upenn.edu #12;2 TABLE OF CONTENTS What is Mechanical Engineering and Applied

Carpick, Robert W.

229

Mechanical Engineering Turning Ideas into Reality  

E-Print Network [OSTI]

Mechanical Engineering Turning Ideas into Reality EnErgy Environ m Ent HEaltH matEria ls transpo rt u r s e s ? Home The Department Overview The Courses Mechanical Engineering (MEng / BEng) Mechanical Engineering With International Study (MEng / BEng) Aero-Mechanical Engineering (MEng / BEng) #12;tHE DEpartm

Mottram, Nigel

230

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT STRESS ANALYSIS ES-2502, C'2012 Lecture 02: Internal Forces 13 January 2012 #12;Mechanical Engineering@wpi.edu Tatiana Popova tpopova@wpi.edu #12;Mechanical Engineering Department Force analysis. Free-body diagrams

Furlong, Cosme

231

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, October 17th, 2013 12:00 颅 12:50 PM Room 1106 Mechanical Engineering Building 1513 University Avenue MECHANICAL AND NEURAL FACTORS Department of Mechanical Engineering Department of Biomedical Engineering Abstract: Human walking involves

Wisconsin at Madison, University of

232

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT STRESS ANALYSIS ES-2502, C'2012 Lecture 09: Stress and Strain 27 January 2012 #12;Mechanical Engineering@wpi.edu Tatiana Popova tpopova@wpi.edu #12;Mechanical Engineering Department ASTM standards P P Stress Strain

Furlong, Cosme

233

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, September 12, 2013 12:00 颅 12:50 PM Room 1106 Mechanical Engineering Building Using Advanced Computing in Applied Dynamics: From.D. in Mechanical Engineering in 1998 from the University of Iowa. Dan joined the Mechanical Engineering faculty

Wisconsin at Madison, University of

234

aerospace & mechanical (AME) AME overview programs available  

E-Print Network [OSTI]

22 aerospace & mechanical (AME) AME overview 路 programs available courses of instruction-thruster (the Free Molecule Micro-Resistojet) and the aerodynamics of ground vehicles. Mechanical Engineering Mechanical Engineers apply scientific methodology to find solutions to mechanical problems and to create

Rohs, Remo

235

Mechanical & Aerospace Engineering Turning Ideas into Reality  

E-Print Network [OSTI]

Mechanical & Aerospace Engineering Turning Ideas into Reality EnErgy Environ m Ent HEaltH mat Overview The Courses Mechanical Engineering (MEng / BEng) Mechanical Engineering With International Study (MEng / BEng) Aero-Mechanical Engineering (MEng / BEng) E N T r y F A Q S A p p l y i n g C a m p u

Mottram, Nigel

236

Geometrical setting of solid mechanics  

SciTech Connect (OSTI)

Highlights: > Solid mechanics within the Riemannian symmetric manifold GL (3, R)/O (3, R). > Generalized logarithmic strain. > Consistent linearization. > Incremental principle of virtual power. > Time-discrete approximation. - Abstract: The starting point in the geometrical setting of solid mechanics is to represent deformation process of a solid body as a trajectory in a convenient space with Riemannian geometry, and then to use the corresponding tools for its analysis. Based on virtual power of internal stresses, we show that such a configuration space is the (globally) symmetric space of symmetric positive-definite real matrices. From this unifying point of view, we shall analyse the logarithmic strain, the stress rate, as well as linearization and intrinsic integration of corresponding evolution equation.

Fiala, Zdenek, E-mail: fiala@itam.cas.cz [Institute of Theoretical and Applied Mechanics, ASCR, v. v. i., Prosecka 809/76, 190 00 Praha 9 (Czech Republic)

2011-08-15T23:59:59.000Z

237

Chemically assisted mechanical refrigeration process  

DOE Patents [OSTI]

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing the evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator. 5 figs.

Vobach, A.R.

1987-11-24T23:59:59.000Z

238

Chemically assisted mechanical refrigeration process  

DOE Patents [OSTI]

There is provided a chemically assisted mechanical refrigeration process including the steps of: mechanically compressing a refrigerant stream which includes vaporized refrigerant; contacting the refrigerant with a solvent in a mixer at a pressure sufficient to promote substantial dissolving of the refrigerant in the solvent in the mixer to form a refrigerant-solvent solution while concurrently placing the solution in heat exchange relation with a working medium to transfer energy to the working medium, said refrigerant-solvent solution exhibiting a negative deviation from Raoult's Law; reducing the pressure over the refrigerant-solvent solution in an evaporator to allow the refrigerant to vaporize and substantially separate from the solvent while concurrently placing the evolving refrigerant-solvent solution in heat exchange relation with a working medium to remove energy from the working medium to thereby form a refrigerant stream and a solvent stream; and passing the solvent and refrigerant stream from the evaporator. 5 figs.

Vobach, A.R.

1987-06-23T23:59:59.000Z

239

Locking mechanism for indexing device  

DOE Patents [OSTI]

Disclosed is a locking mechanism for an indexing spindle. A conventional r gear having outwardly extending teeth is affixed to the spindle. Also included is a rotatably mounted camshaft whose axis is arranged in skewed relationship with the axis of the spindle. A disk-like wedge having opposing camming surfaces is eccentrically mounted on the camshaft. As the camshaft is rotated, the camming surfaces of the disc-like member are interposed between adjacent gear teeth with a wiping action that wedges the disc-like member between the gear teeth. A zero backlash engagement between disc-like member and gear results, with the engagement having a high mechanical advantage so as to effectively lock the spindle against bidirectional rotation.

Lindemeyer, Carl W. (Aurora, IL)

1984-01-01T23:59:59.000Z

240

The Schwinger mechanism and graphene  

E-Print Network [OSTI]

The Schwinger mechanism, the production of charged particle-antiparticle pairs in a macroscopic external electric field, is derived for 2+1 dimensional theories. The rate of pair production per unit area for four species of massless fermions, with charge $q$, in a constant electric field $E$ is given by $ \\pi^{-2} \\hbar^{-3/2} \\tilde{c}^{-1/2} (q E)^{3/2} $ where $\\tilde{c}$ is the speed of light for the two-dimensional system. To the extent undoped graphene behaves like the quantum field-theoretic vacuum for massless fermions in 2+1 dimensions, the Schwinger mechanism should be testable experimentally. A possible experimental configuration for this is proposed. Effects due to deviations from this idealized picture of graphene are briefly considered. It is argued that with present day samples of graphene, tests of the Schwinger formula may be possible.

Danielle Allor; Thomas D. Cohen; David A. McGady

2008-09-22T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Mechanical Engineering Department technical abstracts  

SciTech Connect (OSTI)

The Mechanical Engineering Department publishes listings of technical abstracts twice a year to inform readers of the broad range of technical activities in the Department, and to promote an exchange of ideas. Details of the work covered by an abstract may be obtained by contacting the author(s). Overall information about current activities of each of the Department's seven divisions precedes the technical abstracts.

Denney, R.M. (ed.)

1982-07-01T23:59:59.000Z

242

Mechanical Engineering Department Technical Review  

SciTech Connect (OSTI)

The Mechanical Engineering Department Technical Review is published to inform readers of various technical activities within the Department, promote exchange of ideas, and give credit to personnel who are achieving the results. The report is presented in two parts: technical achievements and publication abstracts. The first is divided into seven sections, each of which reports on an engineering division and its specific activities related to nuclear tests, nuclear explosives, weapons, energy systems, engineering sciences, magnetic fusion, and materials fabrication.

Carr, R.B.; Denney, R.M. (eds.)

1981-07-01T23:59:59.000Z

243

Mechanical engineering department technical review  

SciTech Connect (OSTI)

The Mechanical Engineering Department Technical Review is published to: (1) inform the readers of various technical activities within the department, (2) promote exchange of ideas, and (3) give credit to the personnel who are achieving the results. The report is formatted into two parts: technical acievements and publication abstracts. The first is divided into eight sections, one for each division in the department providing the reader with the names of the personnel and the division accomplishing the work.

Carr, R.B. Denney, R.M. (eds.)

1981-01-01T23:59:59.000Z

244

Particle Suspension Mechanisms - Supplemental Material  

SciTech Connect (OSTI)

This supplemental material provides a brief introduction to particle suspension mechanisms that cause exfoliated skin cells to become and remain airborne. The material presented here provides additional context to the primary manuscript and serves as background for designing possible future studies to assess the impact of skin cells as a source of infectious aerosols. This introduction is not intended to be comprehensive and interested readers are encouraged to consult the references cited.

Dillon, M B

2011-03-03T23:59:59.000Z

245

Fracture mechanics of cellular glass  

SciTech Connect (OSTI)

Cellular glasses are prime candidate materials for the structural substrate of mirrored glass for solar concentrator reflecting panels. These materials are brittle, however, and susceptible to mechanical failure from slow crack growth caused by a stress corrosion mechanism. The results are detailed of one part of a program established to develop improved cellular glasses and to characterize the behavior of these and commercially available materials. Commercial and developmental cellular glasses were tested and analyzed using standard testing techniques and models developed from linear fracture mechanics. Two models describing the fracture behavior of these materials are developed. Slow crack growth behavior in cellular glass was found to be more complex than that encountered in dense glasses or ceramics. The crack velocity was found to be strongly dependent upon water vapor transport to the tip of the moving crack. The existence of a static fatigue limit was not conclusively established, however, it is speculated that slow crack growth behavior in Region I may be slower, by orders of magnitude, than that found in dense glasses.

Zwissler, J.G.; Adams, M.A.

1981-02-01T23:59:59.000Z

246

Mechanical formalism for tissue dynamics  

E-Print Network [OSTI]

The understanding of morphogenesis in living organisms has been renewed by tremendous progress in experimental techniques that provide access to cell-scale, quantitative information both on the shapes of cells within tissues and on the genes being expressed. This information suggests that our understanding of the respective contributions of gene expression and mechanics, and of their crucial entanglement, will soon leap forward. Biomechanics increasingly benefits from models, which assist the design and interpretation of experiments, point out the main ingredients and assumptions, and ultimately lead to predictions. The newly accessible local information thus calls for a reflection on how to select suitable classes of mechanical models. We review both mechanical ingredients suggested by the current knowledge of tissue behaviour, and modelling methods that can help generate a rheological diagram or a constitutive equation. We distinguish cell scale ("intra-cell") and tissue scale ("inter-cell") contributions. We recall the mathematical framework developped for continuum materials and explain how to transform a constitutive equation into a set of partial differential equations amenable to numerical resolution. We show that when plastic behaviour is relevant, the dissipation function formalism appears appropriate to generate constitutive equations; its variational nature facilitates numerical implementation, and we discuss adaptations needed in the case of large deformations. The present article gathers theoretical methods that can readily enhance the significance of the data to be extracted from recent or future high throughput biomechanical experiments.

Sham Tlili; Cyprien Gay; Francois Graner; Philippe Marcq; Fran鏾is Molino; Pierre Saramito

2014-12-23T23:59:59.000Z

247

DOE fundamentals handbook: Mechanical science. Volume 2  

SciTech Connect (OSTI)

The Mechanical Science Handbook was developed to assist nuclear facility operating contractors in providing operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of mechanical components and mechanical science. The handbook includes information diesel engines, heat exchangers, pumps, valves, and miscellaneous mechanical components. This information will provide personnel with a foundation for understanding the construction and operation of mechanical components that are associated with various DOE nuclear facility operations and maintenance.

Not Available

1993-01-01T23:59:59.000Z

248

Active noise canceling system for mechanically cooled germanium radiation detectors  

DOE Patents [OSTI]

A microphonics noise cancellation system and method for improving the energy resolution for mechanically cooled high-purity Germanium (HPGe) detector systems. A classical adaptive noise canceling digital processing system using an adaptive predictor is used in an MCA to attenuate the microphonics noise source making the system more deployable.

Nelson, Karl Einar; Burks, Morgan T

2014-04-22T23:59:59.000Z

249

Mechanical Control of Enzymes Using DNA Molecular Springs  

E-Print Network [OSTI]

Responses of GK to Mechanical Stresses . . . . . . .4 Mechanical Control of Renilla116 Relation of Enzymatic Activity and Mechanical Stress

Tseng, Chiao-Yu

2013-01-01T23:59:59.000Z

250

A different approach to introducing statistical mechanics  

E-Print Network [OSTI]

The basic notions of statistical mechanics (microstates, multiplicities) are quite simple, but understanding how the second law arises from these ideas requires working with cumbersomely large numbers. To avoid getting bogged down in mathematics, one can compute multiplicities numerically for a simple model system such as an Einstein solid -- a collection of identical quantum harmonic oscillators. A computer spreadsheet program or comparable software can compute the required combinatoric functions for systems containing a few hundred oscillators and units of energy. When two such systems can exchange energy, one immediately sees that some configurations are overwhelmingly more probable than others. Graphs of entropy vs. energy for the two systems can be used to motivate the theoretical definition of temperature, $T= (\\partial S/\\partial U)^{-1}$, thus bridging the gap between the classical and statistical approaches to entropy. Further spreadsheet exercises can be used to compute the heat capacity of an Einst...

Moore, Thomas A

2015-01-01T23:59:59.000Z

251

Mechanics of Rotating Isolated Horizons  

E-Print Network [OSTI]

Black hole mechanics was recently extended by replacing the more commonly used event horizons in stationary space-times with isolated horizons in more general space-times (which may admit radiation arbitrarily close to black holes). However, so far the detailed analysis has been restricted to non-rotating black holes (although it incorporated arbitrary distortion, as well as electromagnetic, Yang-Mills and dilatonic charges). We now fill this gap by first introducing the notion of isolated horizon angular momentum and then extending the first law to the rotating case.

Abhay Ashtekar; Christopher Beetle; Jerzy Lewandowski

2001-04-11T23:59:59.000Z

252

New mechanism of membrane fusion  

E-Print Network [OSTI]

We have carried out Monte Carlo simulation of the fusion of bilayers of single chain amphiphiles which show phase behavior similar to that of biological lipids. The fusion mechanism we observe is very different from the ``stalk'' hypothesis. Stalks do form on the first stage of fusion, but they do not grow radially to form a hemifused state. Instead, stalk formation destabilizes the membranes and results in hole formation in the vicinity of the stalks. When holes in each bilayer nucleate spontaneously next to the same stalk, an incomplete fusion pore is formed. The fusion process is completed by propagation of the initial connection, the stalk, along the edges of the aligned holes.

M. Mueller; K. Katsov; M. Schick

2001-10-10T23:59:59.000Z

253

Mechanical Behavior of Indium Nanostructures  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior of Indium Nanostructures Print

254

Mechanical Behavior of Indium Nanostructures  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior of Indium Nanostructures

255

Mechanical Behavior of Indium Nanostructures  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior of Indium

256

Mechanical Behavior of Indium Nanostructures  

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 May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey MathematicaMeasuring and UnderstandingMechanical

257

Quantum Mechanics associated with a Finite Group  

E-Print Network [OSTI]

I describe, in the simplified context of finite groups and their representations, a mathematical model for a physical system that contains both its quantum and classical aspects. The physically observable system is associated with the space containing elements fxf for f an element in the regular representation of a given finite group G. The Hermitian portion of fxf is the Wigner distribution of f whose convolution with a test function leads to a mathematical description of the quantum measurement process. Starting with the Jacobi group that is formed from the semidirect product of the Heisenberg group with its automorphism group SL(2,F{N}) for N an odd prime number I show that the classical phase space is the first order term in a series of subspaces of the Hermitian portion of fxf that are stable under SL(2,F{N}). I define a derivative that is analogous to a pseudodifferential operator to enable a treatment that parallels the continuum case. I give a new derivation of the Schrodinger-Weil representation of the Jacobi group. Keywords: quantum mechanics, finite group, metaplectic. PACS: 03.65.Fd; 02.10.De; 03.65.Ta.

Robert W. Johnson

2006-04-20T23:59:59.000Z

258

Enhancement Mechanisms of Low Energy Nuclear Reactions  

E-Print Network [OSTI]

The review of possible stimulation mechanisms of LENR (low energy nuclear reaction) is represented. We have concluded that transmutation of nuclei at low energies and excess heat are possible in the framework of the modern physical theory - the universal resonance synchronization principle [1] and based on its different enhancement mechanisms of reaction rates are responsible for these processes [2]. The excitation and ionization of atoms may play role as a trigger for LENR. Superlow energy of external fields may stimulate LENR [3]. Investigation of this phenomenon requires knowledge of different branches of science: nuclear and atomic physics, chemistry and electrochemistry, condensed matter and solid state physics,... The results of this research field can provide a new source of energy, substances and technologies. The puzzle of poor reproducibility of experimental data is due to the fact that LENR occurs in open systems and it is extremely sensitive to parameters of external fields and systems. Classical reproducibility principle should be reconsidered for LENR experiments. Poor reproducibility and unexplained results do not means that the experiment is wrong. Our main conclusions:

F. A. Gareev; I. E. Zhidkova

2005-05-08T23:59:59.000Z

259

Solar mechanics thermal response capabilities.  

SciTech Connect (OSTI)

In many applications, the thermal response of structures exposed to solar heat loads is of interest. Solar mechanics governing equations were developed and integrated with the Calore thermal response code via user subroutines to provide this computational simulation capability. Solar heat loads are estimated based on the latitude and day of the year. Vector algebra is used to determine the solar loading on each face of a finite element model based on its orientation relative to the sun as the earth rotates. Atmospheric attenuation is accounted for as the optical path length varies from sunrise to sunset. Both direct and diffuse components of solar flux are calculated. In addition, shadowing of structures by other structures can be accounted for. User subroutines were also developed to provide convective and radiative boundary conditions for the diurnal variations in air temperature and effective sky temperature. These temperature boundary conditions are based on available local weather data and depend on latitude and day of the year, consistent with the solar mechanics formulation. These user subroutines, coupled with the Calore three-dimensional thermal response code, provide a complete package for addressing complex thermal problems involving solar heating. The governing equations are documented in sufficient detail to facilitate implementation into other heat transfer codes. Suggestions for improvements to the approach are offered.

Dobranich, Dean D.

2009-07-01T23:59:59.000Z

260

Mental Mechanisms, Autonomous Systems, and Moral Agency William Bechtel (bechtel@mechanism.ucsd.edu)  

E-Print Network [OSTI]

Mental Mechanisms, Autonomous Systems, and Moral Agency William Bechtel (bechtel as a moral agent. Keywords: mechanistic explanation, mental mechanisms, autonomous systems, adaptive systems of mechanisms can best be understood in terms of autonomous systems and their components. Mechanistic

Bechtel, William

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

GRADUATE STUDIES IN MECHANICAL AND AEROSPACE ENGINEERING Department of Mechanical and Aerospace Engineering  

E-Print Network [OSTI]

A Guide to GRADUATE STUDIES IN MECHANICAL AND AEROSPACE ENGINEERING at Department of Mechanical...................................................................................................... 3 2. Master of Science in Mechanical and Aerospace Engineering ........................................................................................................................ 6 4. Master of Science in Energy Systems Engineering (MSESE

Mohan, Chilukuri K.

262

Mechanical fault interaction within the Los Angeles Basin: A two-dimensional analysis using mechanical efficiency  

E-Print Network [OSTI]

Mechanical fault interaction within the Los Angeles Basin: A two-dimensional analysis using mechanical efficiency Michele L. Cooke Geosciences Department, University of Massachusetts-Amherst, Amherst July 2002. [1] Mechanical models examine deformation within eight different structural cross sections

Cooke, Michele

263

Dynamics of mechanisms with elastic bodies  

E-Print Network [OSTI]

Belt drive mechanisms are alternatives to robotic actuators to obtain complex repetitive motions by simple actuation. By simply changing the dimensions of the mechanism, we can obtain different kinds of trajectories for the exit link...

Mirzahmedov, Ganijon Ahmedovich

2001-01-01T23:59:59.000Z

264

Institute of Fluid Mechanics and Engineering Acoustics  

E-Print Network [OSTI]

Institute of Fluid Mechanics and Engineering Acoustics Large Kundt's tubes Click to insert the image of the facility or test-rig Application area Facility Mechanical Property measurement Physical

Berlin,Technische Universit盲t

265

Institute of Fluid Mechanics and Engineering Acoustics  

E-Print Network [OSTI]

Institute of Fluid Mechanics and Engineering Acoustics Sound Transmission Lab Click to insert the image of the facility or test-rig Application area Facility Mechanical Property measurement Physical

Berlin,Technische Universit盲t

266

Apparatus and method for generating mechanical waves  

DOE Patents [OSTI]

Mechanical waves are generated in a medium by subjecting an electromechanical element to an alternating electric field having a frequency which induces mechanical resonance therein and is below any electrical resonance frequency thereof.

Allensworth, D.L.; Chen, P.J.

1982-10-25T23:59:59.000Z

267

Apparatus and method for generating mechanical waves  

DOE Patents [OSTI]

Mechanical waves are generated in a medium by subjecting an electromechanical element to an alternating electric field having a frequency which induces mechanical resonance therein and is below any electrical resonance frequency thereof.

Allensworth, Dwight L. (Albuquerque, NM); Chen, Peter J. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

268

Sarah Deisher, Academic Advisor Mechanical Engineering Ambassadors  

E-Print Network [OSTI]

Aeronautics Automotive Biomedical Combustion CAD Controls Energy Mgmt Fluid mechanics HVAC Manufacturing Mechatronics Nuclear Power generation Propulsion Robotics Smart Materials Vehicle dyn Mechanical engineers 路40+ projects in 2014/15: Autonomous Vehicles, Nuclear, Biomedical, Formula SAE, Hybrid Vehicles

Virginia Tech

269

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, October 3rd , 2013 12:00 颅 12:50 PM Room 1106 Mechanical Engineering Building Role of Safety Presented by: Ms. Tara Cordes Risk

Wisconsin at Madison, University of

270

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, Dec 5th, 2013 12:00颅 12:50 PM Room 1106 Mechanical Engineering Building 1513 University Avenue Final Research Presentations

Wisconsin at Madison, University of

271

An efficient public key infrastructure revocation mechanism  

E-Print Network [OSTI]

into consideration, such as certificate revocation mechanisms. Since certificates will not be valid forever, there must be a way in which users can obtain accurate information. The research in this thesis provides such a mechanism. This research uses a...

Collins, Tamara Lyn

2000-01-01T23:59:59.000Z

272

Skeletal adaptation to reduced mechanical loading  

E-Print Network [OSTI]

Bone adapts its mass and architecture in response to its mechanical environment. Yet control of this process by mechanical cues is poorly understood, particularly for unloading. Defining the fundamental mechanoregulation ...

Eliman, Rachel

2014-01-01T23:59:59.000Z

273

Tanvir R. Tanim Department of Mechanical and  

E-Print Network [OSTI]

@psu.edu Chao-Yang Wang Professor William E. Diefenderfer Chair of Mechanical Engineering, and Director

274

Quantum mechanical time contradicts the uncertainty principle  

E-Print Network [OSTI]

The a priori time in conventional quantum mechanics is shown to contradict the uncertainty principle. A possible solution is given.

Hitoshi Kitada

1999-11-17T23:59:59.000Z

275

2014 GRADUATE STUDIES ENVIRONMENTAL FLUID MECHANICS  

E-Print Network [OSTI]

for Civil and Environmental Engineers 路 Stochastic Hydrology 路 Water Resources Management 路 Fluid Mechanics2014 GRADUATE STUDIES ENVIRONMENTAL FLUID MECHANICS AND WATER RESOURCES ENGINEERING RESEARCH AREAS SELECTED COURSES FACILITIES The Environmental Fluid Mechanics and Water Resources program at the Georgia

Wang, Yuhang

276

FLUID MECHANICS AND MATHEMATICAL STRUCTURES PHILIP BOYLAND  

E-Print Network [OSTI]

FLUID MECHANICS AND MATHEMATICAL STRUCTURES PHILIP BOYLAND Department of Mathematics University in the most basic models of fluid motion. 1. Introduction Fluid mechanics is the source of many of the ideas, Lagrange, . . .. Mathematicians have abstracted and vastly generalized ba- sic fluid mechanical concepts

Boyland, Philip

277

MECH 502: Fluid Mechanics Winter semester 2010  

E-Print Network [OSTI]

MECH 502: Fluid Mechanics Winter semester 2010 Instructor: I.A. Frigaard Times: Tuesdays week of semester. Location: CHBE 103 Synopsis: This course will focus primarily on fluid mechanics will be to look at fluid mechanics fundamentals, and at the mathematical modeling & analysis of simplified flow

278

Mechanisms leading to electrically isolated cell  

E-Print Network [OSTI]

Mechanisms leading to electrically isolated cell parts and power loss under mechanical loads F cracks are omnipresent #12;Power loss by cell cracks Humidity freeze cycle 0 50 100 150 200 Powerloss, isolated cell area Crack mode: #12;Power loss after mechanical load Some solar cells with mode A cracks

279

MECHANICAL & BIOMEDICAL ENGINEERING COURSE PLAN BY SEMESTER  

E-Print Network [OSTI]

MECHANICAL & BIOMEDICAL ENGINEERING COURSE PLAN BY SEMESTER STARTING WITH MATH 170 F I R S T Y E are identified and resolved quickly. #12;MECHANICAL & BIOMEDICAL ENGINEERING COURSE PLAN BY SEMESTER STARTING A R Fall Semester Spring Semester CHEM 111 College Chemistry 3 ME 105 Mechanical Engineering Graphics

Barrash, Warren

280

Statistical mechanics and ocean circulation Rick Salmon  

E-Print Network [OSTI]

Statistical mechanics and ocean circulation Rick Salmon Scripps Institution of Oceanography, UCSD equilibrium statistical mechanics based upon the conservation of energy and potential enstrophy to the mass. The equilibrium state resembles the buoyancy structure actually observed. Key words: statistical mechanics, ocean

Salmon, Rick

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Research Overview The Mechanical Engineering Department offers  

E-Print Network [OSTI]

and renewable energy. Graduate students in this area typically specialize in Mechanical Engineering but also#12;2 Research Overview The Mechanical Engineering Department offers the Masters of Science and Doctor of Philosophy degrees in Mechanical Engineering. The program demands academic rigor and depth yet

282

MECHANICAL & BIOMEDICAL ENGINEERING COURSE PLAN BY SEMESTER  

E-Print Network [OSTI]

MECHANICAL & BIOMEDICAL ENGINEERING COURSE PLAN BY SEMESTER F I R S T Y E A R Fall Semester Spring TOTAL CREDITS 14 S E C O N D Y E A R Fall Semester Spring Semester PHYS 211 Mechanics, Waves, and Heat 4 PHYS 212 Electricity, Magnetism, and Optics 4 PHYS 211L Mechanics, Waves and Heat Lab 1 PHYS 212L

Barrash, Warren

283

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, October 24th, 2013 12:00 颅 12) Timothy A. Shedd Associate Professor of Mechanical Engineering, University of Wisconsin 颅 Madison of Illinois at Urbana-Champaign for his M.S. (1998) and Ph.D. (2001) degrees in Mechanical Engineering. Shedd

Wisconsin at Madison, University of

284

Mechanical Engineering Larry L. Howell, Chair  

E-Print Network [OSTI]

Mechanical Engineering Larry L. Howell, Chair 435-A CTB, (801) 422-2625 Ira A. Fulton College program in the Department of Mechanical Engineering carries special enrollment limitations at the junior 路 A cumulative GPA of at least 2.0 Undergraduate Programs and Degrees BS Mechanical Engineering Students should

Hart, Gus

285

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, May 1st , 2014 12:00 颅 12:50 PM 1800 Engineering Hall On the Use of Computers in Mechanical Engineering Dan Negrut, Associate overview of how several faculty in the Mechanical Engineering Department are using computers to improve

Wisconsin at Madison, University of

286

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, May 1st , 2014 12:00 颅 12:50 PM 1800 Engineering Hall Advanced Manufacturing Research in the Department of Mechanical in the Department of Mechanical Engineering at the University of Wisconsin-Madison. The advanced manufacturing

Wisconsin at Madison, University of

287

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, October 31st, 2013 12:00 颅 12:50 PM Room 1106 Mechanical Engineering Building Challenges in Nanocomposites: Mixing and Predictable mechanical, thermal and electrical properties, rendering them as ideal fillers for advanced polymer

Wisconsin at Madison, University of

288

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, March 6th, 2014 12:00 颅 12:50 PM Room 1800 Engineering Hall INTEGRATION OF COMPUTATIONAL FLUID MECHANICS INTO THE CLINICAL will first discuss our collaborative approach to integrate computational fluid mechanics into the cardiac

Wisconsin at Madison, University of

289

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, November 7th, 2013 12:00 颅 12 Vinod Narayanan Associate Professor School of Mechanical Industrial and Manufacturing engineering and the James Welty Endowed Faculty Fellow in the School of Mechanical Industrial and Manufacturing engineering

Wisconsin at Madison, University of

290

Mechanical and Aerospace Engineering University at Buffalo  

E-Print Network [OSTI]

Mechanical and Aerospace Engineering University at Buffalo S t a t e U n i v e r s i t y o f N e w Y o r k MAE Seminar Series Rotation and Vorticity in Mechanics and Physics Alireza Hadjesfandiari Department of Mechanical and Aerospace Engineering University at Buffalo ah@buffalo.edu Abstract: Rotation

Krovi, Venkat

291

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, September 26th, 2013 12:00 颅 12:50 PM Room 1106 Mechanical Engineering Building 1513 University Avenue PATENTING BASICS FOR UW Patent Agent with engineering experience in product design consulting, mechanical design and materials

Wisconsin at Madison, University of

292

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, November 21st, 2013 12:00 颅 12:50 PM Room 1106 Mechanical Engineering Building CONNECTING ART AND SCIENCE TO DETERMINE CLIMATE-Madison Abstract: This talk describes the integration of principles from mechanical engineering, digital animated

Wisconsin at Madison, University of

293

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, February 13th 12:00 颅 12 Bart Raeymaekers Department of Mechanical Engineering, University of Utah, Abstract: Approximately 285 is Assistant Professor in the Dept. of Mechanical Engineering at the University of Utah. He received his M

Wisconsin at Madison, University of

294

4, 38293862, 2007 Mechanisms of soil  

E-Print Network [OSTI]

BGD 4, 3829颅3862, 2007 Mechanisms of soil carbon storage S. Steinbeiss et al. Title Page Abstract Biogeosciences Discussions is the access reviewed discussion forum of Biogeosciences Mechanisms of soil carbon颅3862, 2007 Mechanisms of soil carbon storage S. Steinbeiss et al. Title Page Abstract Introduction

Boyer, Edmond

295

CHSLT -NEST WPI Mechanical Engineering Department  

E-Print Network [OSTI]

CHSLT - NEST WPI Mechanical Engineering Department Introduction: digital cameras 11 November 2013 #12;CHSLT - NEST WPI Mechanical Engineering Department The CCD/CMOS camera CCD charged-coupled device) #12;CHSLT - NEST WPI Mechanical Engineering Department The CCD/CMOS camera Detail section of a CCD

Furlong, Cosme

296

Quantum Mechanics and Representation Theory Columbia University  

E-Print Network [OSTI]

Quantum Mechanics and Representation Theory Peter Woit Columbia University Texas Tech, November 21 2013 Peter Woit (Columbia University) Quantum Mechanics and Representation Theory November 2013 1 / 30, 1967 Peter Woit (Columbia University) Quantum Mechanics and Representation Theory November 2013 2 / 30

Woit, Peter

297

A Quantum Mechanical Travelling Salesman  

E-Print Network [OSTI]

A quantum simulation of a travelling salesman is described. A vector space for a graph is defined together with a sequence of operators which transform a special initial state into a superposition states representing Hamiltonian tours. The quantum amplitude for any tour is a function of the classical cost of travelling along the edges in that tour. Tours with the largest quantum amplitude may be different than those with the smallest classically-computed cost.

Ravindra N. Rao

2011-08-23T23:59:59.000Z

298

Plant salt-tolerance mechanisms  

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

Crop performance is severely affected by high salt concentrations in soils. To engineer more salt-tolerant plants it is crucial to unravel the key components of the plant salt-tolerance network. Here we review our understanding of the core salt-tolerance mechanisms in plants. Recent studies have shown that stress sensing and signaling components can play important roles in regulating the plant salinity stress response. We also review key Na+ transport and detoxification pathways and the impact of epigenetic chromatin modifications on salinity tolerance. In addition, we discuss the progress that has been made towards engineering salt tolerance in crops, including marker-assisted selection and gene stacking techniques. We also identify key open questions that remain to be addressed in the future.

Deinlein, Ulrich; Stephan, Aaron B.; Horie, Tomoaki; Luo, Wei; Xu, Guohua; Schroeder, Julian I.

2014-06-01T23:59:59.000Z

299

Fundamental mechanisms of micromachine reliability  

SciTech Connect (OSTI)

Due to extreme surface to volume ratios, adhesion and friction are critical properties for reliability of Microelectromechanical Systems (MEMS), but are not well understood. In this LDRD the authors established test structures, metrology and numerical modeling to conduct studies on adhesion and friction in MEMS. They then concentrated on measuring the effect of environment on MEMS adhesion. Polycrystalline silicon (polysilicon) is the primary material of interest in MEMS because of its integrated circuit process compatibility, low stress, high strength and conformal deposition nature. A plethora of useful micromachined device concepts have been demonstrated using Sandia National Laboratories' sophisticated in-house capabilities. One drawback to polysilicon is that in air the surface oxidizes, is high energy and is hydrophilic (i.e., it wets easily). This can lead to catastrophic failure because surface forces can cause MEMS parts that are brought into contact to adhere rather than perform their intended function. A fundamental concern is how environmental constituents such as water will affect adhesion energies in MEMS. The authors first demonstrated an accurate method to measure adhesion as reported in Chapter 1. In Chapter 2 through 5, they then studied the effect of water on adhesion depending on the surface condition (hydrophilic or hydrophobic). As described in Chapter 2, they find that adhesion energy of hydrophilic MEMS surfaces is high and increases exponentially with relative humidity (RH). Surface roughness is the controlling mechanism for this relationship. Adhesion can be reduced by several orders of magnitude by silane coupling agents applied via solution processing. They decrease the surface energy and render the surface hydrophobic (i.e. does not wet easily). However, only a molecular monolayer coats the surface. In Chapters 3-5 the authors map out the extent to which the monolayer reduces adhesion versus RH. They find that adhesion is independent of RH up to a threshold value, depending on the coating chemistry. The mechanism for the adhesion increase beyond this threshold value is that the coupling agent reconfigures from a surface to a bulk phase (Chapter 3). To investigate the details of how the adhesion increase occurs, the authors developed the mechanics for adhesion hysteresis measurements. These revealed that near-crack tip compression is the underlying cause of the adhesion increase (Chapter 4). A vacuum deposition chamber for silane coupling agent deposition was constructed. Results indicate that vapor deposited coatings are less susceptible to degradation at high RH (Chapter 5). To address issues relating to surfaces in relative motion, a new test structure to measure friction was developed. In contrast to other surface micromachined friction test structures, uniform apparent pressure is applied in the frictional contact zone (Chapter 6). The test structure will enable friction studies over a large pressure and dynamic range. In this LDRD project, the authors established an infrastructure for MEMS adhesion and friction metrology. They then characterized in detail the performance of hydrophilic and hydrophobic films under humid conditions, and determined mechanisms which limit this performance. These studies contribute to a fundamental understanding for MEMS reliability design rules. They also provide valuable data for MEMS packaging requirements.

DE BOER,MAARTEN P.; SNIEGOWSKI,JEFFRY J.; KNAPP,JAMES A.; REDMOND,JAMES M.; MICHALSKE,TERRY A.; MAYER,THOMAS K.

2000-01-01T23:59:59.000Z

300

Technical abstracts: Mechanical engineering, 1990  

SciTech Connect (OSTI)

This document is a compilation of the published, unclassified abstracts produced by mechanical engineers at Lawrence Livermore National Laboratory (LLNL) during the calendar year 1990. Many abstracts summarize work completed and published in report form. These are UCRL-JC series documents, which include the full text of articles to be published in journals and of papers to be presented at meetings, and UCID reports, which are informal documents. Not all UCIDs contain abstracts: short summaries were generated when abstracts were not included. Technical Abstracts also provides descriptions of those documents assigned to the UCRL-MI (miscellaneous) category. These are generally viewgraphs or photographs presented at meetings. An author index is provided at the back of this volume for cross referencing.

Broesius, J.Y. (comp.)

1991-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Miniature mechanical transfer optical coupler  

DOE Patents [OSTI]

A miniature mechanical transfer (MT) optical coupler ("MMTOC") for optically connecting a first plurality of optical fibers with at least one other plurality of optical fibers. The MMTOC may comprise a beam splitting element, a plurality of collimating lenses, and a plurality of alignment elements. The MMTOC may optically couple a first plurality of fibers disposed in a plurality of ferrules of a first MT connector with a second plurality of fibers disposed in a plurality of ferrules of a second MT connector and a third plurality of fibers disposed in a plurality of ferrules of a third MT connector. The beam splitting element may allow a portion of each beam of light from the first plurality of fibers to pass through to the second plurality of fibers and simultaneously reflect another portion of each beam of light from the first plurality of fibers to the third plurality of fibers.

Abel, Philip (Overland Park, KS); Watterson, Carl (Kansas City, MO)

2011-02-15T23:59:59.000Z

302

Creep damage mechanisms in composites  

SciTech Connect (OSTI)

During the past year, research has focused on processing and characterization of intermetallic composites synthesized by plasma spray deposition. This versatile process allows rapid synthesis of a variety of different composite systems with potential applications for coatings, functionally gradient materials, rapid proto-typing and 3d printing, as well as near-net-shape processing of complex shapes. We have been pursuing an experimental program of research aimed at a fundamental understanding of the microstructural processes involved in the synthesis of intermetallic composites, including diffusion, heat transfer, grain boundary migration, and the dependence of these phenomena on deposition parameters. The work has been motivated by issues arising from composite materials manufacturing technologies. Recent progress is described in section B on the following topics: (1) Reactive atomization and deposition of intermetallic composites (Ni3Al); (2) Reactive synthesis of MoSi2-SiC composites; (3) Mechanical alloying of nanocrystalline alloys; (4) Tensile creep deformation of BMAS glass-ceramic composites.

Nutt, S.R.

1994-10-17T23:59:59.000Z

303

Prequantum Classical Statistical Field Theory: Fundamentals  

SciTech Connect (OSTI)

We present fundamentals of a prequantum model with hidden variables of the classical field type. In some sense this is the comeback of classical wave mechanics. Our approach also can be considered as incorporation of quantum mechanics into classical signal theory. All quantum averages (including correlations of entangled systems) can be represented as classical signal averages and correlations.

Khrennikov, Andrei [International Center for Mathematical Modelling in Physics and Cognitive Sciences, Linnaeus University, Vaexjoe, S-35195 (Sweden)

2011-03-28T23:59:59.000Z

304

The Hamilton-Jacobi Theory, Quantum Mechanics and General Relativity  

E-Print Network [OSTI]

The Hamilton-Jacobi theory of Classical Mechanics can be extended in a novel manner to systems which are fuzzy in the sense that they can be represented by wave functions. A constructive interference of the phases of the wave functions then gives us back Classical systems. In a suitable description this includes both Quantum Theory and General Relativity in the well known superspace formulation. However, there are several nuances which provide insight into these latter systems. All this is considered in this paper together with suitable generalization, to cascades of super universes.

B. G. Sidharth

2005-10-12T23:59:59.000Z

305

Fall 2011 ME 542 Advanced Fluid Mechanics ENG ME 542 Advanced Fluid Mechanics  

E-Print Network [OSTI]

Fall 2011 ME 542 Advanced Fluid Mechanics ENG ME 542 Advanced Fluid Mechanics Instructor: M. S. Howe EMA 218 mshowe@bu.edu This course is intended to consolidate your knowledge of fluid mechanics specialized courses on fluid mechanics, acoustics and aeroacoustics. Outline syllabus: Equations of motion

306

Mechanical Engineering Faculty Candidate Seminar: Mechanical Loading Decreases Osteolysis and Tumor  

E-Print Network [OSTI]

Mechanical Engineering Faculty Candidate Seminar: Mechanical Loading Decreases Osteolysis and Tumor.D. Cornell University Mechanical Engineering Abstract: Approximately 1 in 4 patients with advanced breast to meet structural and metabolic needs via a feedback loop that is regulated by the prevailing mechanical

Wisconsin at Madison, University of

307

Mechanical, Materials, and Aerospace Engineering Department of Mechanical, Materials, and Aerospace Engineering  

E-Print Network [OSTI]

Mechanical, Materials, and Aerospace Engineering Department of Mechanical, Materials, and Aerospace.mmae.iit.edu Chair: Keith Bowman The Department of Mechanical, Materials, and Aerospace Engineering offers several flexible programs in mechanical and aerospace engineering, with five major areas of study: computer

Heller, Barbara

308

Department of Mechanical, Materials, and Aerospace Engineering Department of Mechanical, Materials, and Aerospace Engineering  

E-Print Network [OSTI]

Department of Mechanical, Materials, and Aerospace Engineering Department of Mechanical, Materials@mmae.iit.edu www.mmae.iit.edu Chair: Keith Bowman Associate Chair: Kevin Cassel The Department of Mechanical, Materials, and Aerospace Engineering offers several flexible programs in mechanical and aerospace

Heller, Barbara

309

Understanding Mechanisms of Radiological Contamination  

SciTech Connect (OSTI)

Over the last 50 years, the study of radiological contamination and decontamination has expanded significantly. This paper addresses the mechanisms of radiological contamination that have been reported and then discusses which methods have recently been used during performance testing of several different decontamination technologies. About twenty years ago the Idaho Nuclear Technology Engineering Center (INTEC) at the INL began a search for decontamination processes which could minimize secondary waste. In order to test the effectiveness of these decontamination technologies, a new simulated contamination, termed SIMCON, was developed. SIMCON was designed to replicate the types of contamination found on stainless steel, spent fuel processing equipment. Ten years later, the INL began research into methods for simulating urban contamination resulting from a radiological dispersal device (RDD). This work was sponsored by the Defense Advanced Research Projects Agency (DARPA) and included the initial development an aqueous application of contaminant to substrate. Since 2007, research sponsored by the US Environmental Protection Agency (EPA) has advanced that effort and led to the development of a contamination method that simulates particulate fallout from an Improvised Nuclear Device (IND). The IND method diverges from previous efforts to create tenacious contamination by simulating a reproducible 搇oose contamination. Examining these different types of contamination (and subsequent decontamination processes), which have included several different radionuclides and substrates, sheds light on contamination processes that occur throughout the nuclear industry and in the urban environment.

Rick Demmer; John Drake; Ryan James, PhD

2014-03-01T23:59:59.000Z

310

Mechanical property scatter in CFCCs  

SciTech Connect (OSTI)

The tensile response of continuous fiber reinforced ceramic matrix composites (CFCCs) is not expected to show the large variation in strength properties commonly observed for monolithic ceramics. Results of recent investigations on a number of two-dimensional reinforced CFCCs have nevertheless revealed a considerable scatter in the initial elastic modulus, in the first matrix cracking stress and in the failure stress. One school of thought considers that the observed variability is caused by experimental factors. Elaborate testing programs have been set up to clarify the origins of this scatter by investigation of the effects of control mode, loading rate, specimen shape, etc. Another school explains the scatter by the presence of (axial) residual stresses in the fibers and in the matrix. Although plausible, this hypothesis is difficult to verify because experimental determination of the residual stress state in CFCCs is not straightforward. In addition, with the available methods it is impractical to determine the residual stresses in every test specimen. This approach is indeed required for establishing the relationship between the magnitude of the residual stresses and the experimentally observed scatter. At IAM a method has been developed and validated which allows to quantify the axial residual stress state in individual CFCC specimens by subjecting them to intermittent unloading-reloading cycles. The method as well as the derived relationship between residual stress state and scatter in mechanical response will be presented.

Steen, M.; Filiou, C.

2000-01-01T23:59:59.000Z

311

Tampering detection system using quantum-mechanical systems  

DOE Patents [OSTI]

The use of quantum-mechanically entangled photons for monitoring the integrity of a physical border or a communication link is described. The no-cloning principle of quantum information science is used as protection against an intruder's ability to spoof a sensor receiver using a `classical` intercept-resend attack. Correlated measurement outcomes from polarization-entangled photons are used to protect against quantum intercept-resend attacks, i.e., attacks using quantum teleportation.

Humble, Travis S. (Knoxville, TN); Bennink, Ryan S. (Knoxville, TN); Grice, Warren P. (Oak Ridge, TN)

2011-12-13T23:59:59.000Z

312

Understanding mechanisms for C-H bond activation  

E-Print Network [OSTI]

is unclear as electrophilic and oxidative addition / reductive elimination (OA/RE) pathways have been proposed, and the research into this problem and other related aspects of this chemistry have been extensively considered in several books 18 and reviews... been proposed that lie between the two classic mechanisms that were discussed above; Lin has recently reviewed the current work in this field. 41 Webster and coworkers proposed metal-assisted ?-bond metathesis (MA?BM), 42 Lin and coworkers...

Vastine, Benjamin Alan

2009-05-15T23:59:59.000Z

313

Fundamental Mechanisms of Interface Roughness  

SciTech Connect (OSTI)

Publication quality results were obtained for several experiments and materials systems including: (i) Patterning and smoothening of sapphire surfaces by energetic Ar+ ions. Grazing Incidence Small Angle X-ray Scattering (GISAXS) experiments were performed in the system at the National Synchrotron Light Source (NSLS) X21 beamline. Ar+ ions in the energy range from 300 eV to 1000 eV were used to produce ripples on the surfaces of single-crystal sapphire. It was found that the ripple wavelength varies strongly with the angle of incidence of the ions, which increase significantly as the angle from normal is varied from 55 to 35. A smooth region was found for ion incidence less than 35 away from normal incidence. In this region a strong smoothening mechanism with strength proportional to the second derivative of the height of the surface was found to be responsible for the effect. The discovery of this phase transition between stable and unstable regimes as the angle of incidence is varied has also stimulated new work by other groups in the field. (ii) Growth of Ge quantum dots on Si(100) and (111). We discovered the formation of quantum wires on 4 misoriented Si(111) using real-time GISAXS during the deposition of Ge. The results represent the first time-resolved GISAXS study of Ge quantum dot formation. (iii) Sputter deposition of amorphous thin films and multilayers composed of WSi2 and Si. Our in-situ GISAXS experiments reveal fundamental roughening and smoothing phenomena on surfaces during film deposition. The main results of this work is that the WSi2 layers actually become smoother during deposition due to the smoothening effect of energetic particles in the sputter deposition process.

Randall L. Headrick

2009-01-06T23:59:59.000Z

314

Quantum mechanics and the direction of time  

SciTech Connect (OSTI)

In recent papers the authors have discussed the dynamical properties of large Poincare systems (LPS), that is, nonintegrable systems with a continuous spectrum (both classical and quantum). An interesting example of LPS is given by the Friedrichs model of field theory. As is well known, perturbation methods analytic in the coupling constant diverge because of resonant denominators. They show that this Poincare catastrophe can be eliminated by a natural time ordering of the dynamical states. They obtain then a dynamical theory which incorporates a privileged direction of time (and therefore the second law of thermodynamics). However, it is only in very simple situations that his time ordering can be performed in an extended Hilbert space. In general, they need to go to the Liouville space (superspace) and introduce a time ordering of dynamical states according to the number of particles involved in correlations. This leads then to a generalization of quantum mechanics in which the usual Heisenberg's eigenvalue problem is replaced by a complex eigenvalue problem in the Liouville space.

Hasegawa, H.; Petrosky, T. (Univ. of Texas, Austin (United States)); Prigogine, I. (Univ. of Texas, Austin (United States) International Solvay Inst. for Physics and Chemistry, Brussels (Belgium)); Tasaki, S. (International Solvay Inst. for Physics and Chemistry, Brussels (Belgium))

1991-03-01T23:59:59.000Z

315

A Process Algebra Approach to Quantum Mechanics  

E-Print Network [OSTI]

The process approach to NRQM offers a fourth framework for the quantization of physical systems. Unlike the standard approaches (Schrodinger-Heisenberg, Feynman, Wigner-Gronewald-Moyal), the process approach is not merely equivalent to NRQM and is not merely a re-interpretation. The process approach provides a dynamical completion of NRQM. Standard NRQM arises as a asymptotic quotient by means of a set-valued process covering map, which links the process algebra to the usual space of wave functions and operators on Hilbert space. The process approach offers an emergentist, discrete, finite, quasi-non-local and quasi-non-contextual realist interpretation which appears to resolve many of the paradoxes and is free of divergences. Nevertheless, it retains the computational power of NRQM and possesses an emergent probability structure which agrees with NRQM in the asymptotic quotient. The paper describes the process algebra, the process covering map for single systems and the configuration process covering map for multiple systems. It demonstrates the link to NRQM through a toy model. Applications of the process algebra to various quantum mechanical situations - superpositions, two-slit experiments, entanglement, Schrodinger's cat - are presented along with an approach to the paradoxes and the issue of classicality.

William H. Sulis

2014-09-07T23:59:59.000Z

316

Eccentric crank variable compression ratio mechanism  

DOE Patents [OSTI]

A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.

Lawrence, Keith Edward (Kobe, JP); Moser, William Elliott (Peoria, IL); Roozenboom, Stephan Donald (Washington, IL); Knox, Kevin Jay (Peoria, IL)

2008-05-13T23:59:59.000Z

317

Hybrid cavity mechanics with doped systems  

E-Print Network [OSTI]

We investigate the dynamics of a mechanical resonator in which is embedded an ensemble of two-level systems interacting with an optical cavity field. We show that this hybrid approach to optomechanics allows for enhanced effective interactions between the mechanics and the cavity field, leading for instance to ground state cooling of the mechanics, even in regimes, like the unresolved sideband regime, in which standard radiation pressure cooling would be inefficient.

Aurelien Dantan; Bhagya Nair; Guido Pupillo; Claudiu Genes

2014-06-27T23:59:59.000Z

318

3.22 Mechanical Properties of Materials, Spring 2003  

E-Print Network [OSTI]

Phenomenology of mechanical behavior of materials at the macroscopic level. Relationship of mechanical behavior to material structure and mechanisms of deformation and failure. Topics include: elasticity, viscoelasticity, ...

Gibson, Lorna J.

319

Mechanical compression attenuates normal human bronchial epithelial wound healing  

E-Print Network [OSTI]

Open Access Research Mechanical compression attenuatesto the application of mechanical compression in the presenceResults: We found that mechanical compression and scrape

Arold, Stephen P.; Malavia, Nikita; George, Steven C.

2009-01-01T23:59:59.000Z

320

Mechanical mastication thins Lake Tahoe forest with few adverse impacts  

E-Print Network [OSTI]

RESEARCH ARTICLE Mechanical mastication thins Lake Tahoetrack, as well as Mechanical mastication is a promisingtreatment employing a mechanical masticator to potentially

Hatchett, B.; Hogan, Michael P.; Grismer, Mark E.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Conservation of information and the foundations of quantum mechanics  

E-Print Network [OSTI]

We review a recent approach to the foundations of quantum mechanics inspired by quantum information theory. The approach is based on a general framework, which allows one to address a large class of physical theories which share basic information-theoretic features. We first illustrate two very primitive features, expressed by the axioms of causality and purity-preservation, which are satisfied by both classical and quantum theory. We then discuss the axiom of purification, which expresses a strong version of the Conservation of Information and captures the core of a vast number of protocols in quantum information. Purification is a highly non-classical feature and leads directly to the emergence of entanglement at the purely conceptual level, without any reference to the superposition principle. Supplemented by a few additional requirements, satisfied by classical and quantum theory, it provides a complete axiomatic characterization of quantum theory for finite dimensional systems.

G. Chiribella; C. M. Scandolo

2014-11-11T23:59:59.000Z

322

Wave-Corpuscle Mechanics for Electric Charges  

E-Print Network [OSTI]

superposition in nonlinear wave dynamics. Rev. Math. Phys.6. Babin, A. , Figotin, A. : Wave-corpuscle mechanics forV. , Fortunato, D. : Solitary waves in the nonlinear wave

Babin, Anatoli; Figotin, Alexander

2010-01-01T23:59:59.000Z

323

Mechanical Reliability of Piezo-Stack Actuators  

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

Review Guidelines Mechanical Reliability of Piezo-Stack Actuators (Agreement 13329) Andrew A. Wereszczak, Hong Wang, and Hua-Tay Lin Oak Ridge National Laboratory Oak Ridge, TN...

324

Degradation Mechanisms of Urea Selective Catalytic Reduction...  

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

of rapid laboratory catalyst aging protocols is essential to reducing development cost. 4 Goals and Objectives * Develop an understanding of the deactivation mechanisms of...

325

Degradation Mechanisms of Urea Selective Catalytic Reduction...  

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

of rapid laboratory catalyst aging protocols is essential to reducing development cost. Goals and Objectives 4 * Develop an understanding of the deactivation mechanisms of...

326

Dynamic analysis of mechanisms by finite elements  

SciTech Connect (OSTI)

The need to increase productivity in order to decrease manufacturing costs lead to an increase in the working speeds of machines and mechanical systems used in manufacturing. A method is presented for investigating the dynamics of mechanisms with elastic links. Finite element method is used in the formulation of the dynamic problem. Modal transformation is used in order to reduce the number of equations of motion. Using the presented technique, elastic and rigid body motions of mechanism links are solved simultaneously. The presented method may be applied to spatial and open loop mechanisms including robot manipulators as well.

Botsali, F.M.; Uenuevar, A. [Selcuk Univ., Konya (Turkey). Mechanical Engineering Dept.

1996-11-01T23:59:59.000Z

327

Financing Mechanisms for Renewable Energy Projects | Department...  

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

Projects Financing Mechanisms for Renewable Energy Projects On December 5, 2013, the White House released Federal Leadership on Energy Management, a presidential memorandum...

328

Mechanical Characterization of Fuel Injector Piezoactuators and...  

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

Mechanical Characterization of Fuel Injector Piezoactuators and Their Piezoceramics Andrew A. Wereszczak, Hong Wang, and Hua-Tay Lin Ceramic Science and Technology Materials...

329

Ankle mechanical impedance under muscle fatigue .  

E-Print Network [OSTI]

??This study reports the effects of ankle muscle fatigue on ankle mechanical impedance. It suggests that decreasing ankle impedance with muscle fatigue may contribute to (more)

Wang, Shuo, S.B. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

330

Microstructure and Thermoelectric Properties of Mechanically...  

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

Microstructure and Thermoelectric Properties of Mechanically Robust PbTe-Si Eutectic Composites Home Author: J. R. Sootsman, J. He, V. P. Dravid, S. Ballikaya, D. Vermeulen, C....

331

Hydraulic fracture mechanism in unconsolidated formations.  

E-Print Network [OSTI]

??Most models developed for hydraulic fracturing in unconsolidated sands are based on Linear Elastic Fracture Mechanics (LEFM) and tensile fracture (Mode I fracture). However, in (more)

Hosseini, Seyed Mehran

2012-01-01T23:59:59.000Z

332

UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering  

E-Print Network [OSTI]

................................................................6 Course Planning Guide (CPG ..............................................................................................................................................25 Code of Academic Integrity to analysis, design, and manufacture of mechanisms, machines, and their components. The Department

Carpick, Robert W.

333

UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering  

E-Print Network [OSTI]

................................................................6 Course Planning Guide (CPG............................................................................................................................................................25 Code of Academic Integrity to analysis, design, and manufacture of mechanisms, machines, and their components. The Department

Carpick, Robert W.

334

UNDERGRADUATE STUDENT MANUAL Department of Mechanical Engineering  

E-Print Network [OSTI]

................................................................6 Course Planning Guide (CPG............................................................................................................................................................26 Code of Academic Integrity to analysis, design, and manufacture of mechanisms, machines, and their components. The Department

Carpick, Robert W.

335

A Process Model of Quantum Mechanics  

E-Print Network [OSTI]

A process model of quantum mechanics utilizes a combinatorial game to generate a discrete and finite causal space upon which can be defined a self-consistent quantum mechanics. An emergent space-time M and continuous wave function arise through a non-uniform interpolation process. Standard non-relativistic quantum mechanics emerges under the limit of infinite information (the causal space grows to infinity) and infinitesimal scale (the separation between points goes to zero). The model has the potential to address several paradoxes in quantum mechanics while remaining computationally powerful.

William Sulis

2014-04-21T23:59:59.000Z

336

Quantum mechanical aspects of friction and electric resistance in microscopic problems with applications to radiation physics  

E-Print Network [OSTI]

Friction incorporates the close connection between classical mechanics in irreversible thermodynamics. The translation to a quantum mechanical foundation is not trivial and requires a generalization of the Lagrange function. A change to electromagnetic circuits appears to more adequate, since the electric analogue (Ohms law) is related to scatter of electrons at lattice vibrations.

Ulmer, W

2015-01-01T23:59:59.000Z

337

Statistical Mechanics (AM 9531b/Phys9404b) Winter 2012  

E-Print Network [OSTI]

Statistical Mechanics (AM 9531b/Phys9404b) Winter 2012 Lectures: Wednesdays & Fridays 10:30am-12. It will be assumed you are comfortable with this. Required Text: M. Kardar, Statistical Physics of Particles. You Basics 3. Kinetic theory of gases 4. Classical statistical mechanics 5. Interacting particles (basic

Lennard, William N.

338

DEPARTMENT OF MECHANICAL ENGINEERING UNDERGRADUATE CURRICULUM GUIDE  

E-Print Network [OSTI]

to Engineering Network Services (ENS). ENS supports hundreds of computers in the College of EngineeringDEPARTMENT OF MECHANICAL ENGINEERING UNDERGRADUATE CURRICULUM GUIDE Fall 2013 The mechanical engineering undergraduate curriculum at CSU is designed to provide both classroom learning and on

339

Revised 2006 UNDERGRADUATE MINOR IN MECHANICAL ENGINEERING  

E-Print Network [OSTI]

Revised 2006 UNDERGRADUATE MINOR IN MECHANICAL ENGINEERING Instructions for declaring the ME Services Office (Building 530, room 125) 路 Submit the form to Student Services and the login to Axess students to the breadth of Mechanical Engineering topics and analytic design activities. Prerequisites

Prinz, Friedrich B.

340

DEPARTMENT OF MECHANICAL ENGINEERING UNDERGRADUATE CURRICULUM GUIDE  

E-Print Network [OSTI]

to Engineering Network Services (ENS). ENS supports hundreds of computers in the College of EngineeringDEPARTMENT OF MECHANICAL ENGINEERING UNDERGRADUATE CURRICULUM GUIDE Fall 2012 The mechanical engineering undergraduate curriculum at CSU is designed to provide both classroom learning and on

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

DEPARTMENT OF MECHANICAL ENGINEERING UNDERGRADUATE CURRICULUM GUIDE  

E-Print Network [OSTI]

to Engineering Network Services (ENS). ENS supports hundreds of computers in the College of EngineeringDEPARTMENT OF MECHANICAL ENGINEERING UNDERGRADUATE CURRICULUM GUIDE Fall 2014 The mechanical engineering undergraduate curriculum at CSU is designed to provide both classroom learning and on

342

Mechanical Engineering Department WORCESTER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

Popova tpopova@wpi.edu #12;Mechanical Engineering Department Axial load P P Note distortion lines: follow Saint-Venant's principle #12;Mechanical Engineering Department Axial load: Saint-Venant's principle Engineering Department Axial load: Saint-Venant's principle Section c-c Nominal stress Uniform stress

Furlong, Cosme

343

Original article Mechanisms of resistance to acrolein  

E-Print Network [OSTI]

Original article Mechanisms of resistance to acrolein in Drosophila melanogaster L.M. Sierra M Oviedo, Spain (received 29 November 1988; accepted 26 May 1989) Summary - The mechanisms of acrolein of acrolein entering the flies, and the other is an increase in aldehyde dehydrogenase activity; probably

Paris-Sud XI, Universit茅 de

344

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

Mechanical Engineering Department "The Lindbergh Lectures" Thursday, February 20th , 2014 12 and reducing the environmental impact of manufacturing processes (e.g., less cutting fluid use in machining University. He received his B.S. and M.S. degrees in industrial engineering and his Ph.D. in mechanical

Wisconsin at Madison, University of

345

Journal of Fluid Mechanics Hesitant Nature  

E-Print Network [OSTI]

Journal of Fluid Mechanics Focus luids on F Hesitant Nature E. VILLERMAUX Aix-Marseille Universit0022112009991303 1 #12;Journal of Fluid Mechanics Focus luids on F 1 mm Figure 1. The `gobbling' phenomenon). J. Fluid Mech. (2009), vol. 636, pp. 1颅4. c Cambridge University Press 2009 doi:10.1017/S

346

Mechanical Engineering Colloquium November 14th  

E-Print Network [OSTI]

University (1976). His research focuses on fluid mechanics and heat transfer, and hasauthored over 150Mechanical Engineering Colloquium November 14th , 2014 Macdonald Engineering Building (MD) 267 from THE STROUHAL NUMBER OF FISH UNDULATORY SWIMMING AND THE BUCKLING OF FLUID COLUMNS ABSTRACT An analogybetween

Barthelat, Francois

347

Dept. of Mechanical Engineering 1500 Engineering Dr.  

E-Print Network [OSTI]

Dept. of Mechanical Engineering 1500 Engineering Dr. University of Wisconsin 颅 Madison Madison, WI. of Mechanical Engineering 2008 颅 Present Director of Engine Research Center 2003 颅 2007 Associate Professor 颅 1995 Research Assistant Stanford University, Stanford, CA 1984 颅 1989 Research Engineer Flow Research

Sheridan, Jennifer

348

NONEQUILIBRIUM QUANTUM STATISTICAL MECHANICS AND THERMODYNAMICS #  

E-Print Network [OSTI]

NONEQUILIBRIUM QUANTUM STATISTICAL MECHANICS AND THERMODYNAMICS # Walid K. Abou Salem + Institut f recent progress in deriving the fundamental laws of thermodynamics (0 th , 1 st and 2 nd 颅law) from nonequilibrium quantum statistical mechanics. Basic thermodynamic notions are clarified and di#erent reversible

349

Coordination Mechanisms in Human-Robot Collaboration  

E-Print Network [OSTI]

and an apprentice might both be engaged in the action of cleaning the parts of the transmission before assembly, carrying out the same action on different parts. Alternatively, the mechanic and the apprentice might carry out complementary actions, the mechanic installing gears on the shaft while the apprentice prepares

Mutlu, Bilge

350

Enhancement of mechanical properties of 123 superconductors  

DOE Patents [OSTI]

A composition and method of preparing YBa.sub.2 Cu.sub.3 O.sub.7-x superconductor. Addition of tin oxide containing compounds to YBCO superconductors results in substantial improvement of fracture toughness and other mechanical properties without affect on T.sub.c. About 5-20% additions give rise to substantially improved mechanical properties.

Balachandran, Uthamalingam (Hinsdale, IL)

1995-01-01T23:59:59.000Z

351

Enhancement of mechanical properties of 123 superconductors  

DOE Patents [OSTI]

A composition and method are disclosed of preparing YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} superconductor. Addition of tin oxide containing compounds to YBCO superconductors results in substantial improvement of fracture toughness and other mechanical properties without affect on T{sub c}. About 5-20% additions give rise to substantially improved mechanical properties.

Balachandran, U.

1995-04-25T23:59:59.000Z

352

Carbon Nanotube DNA Sensor and Sensing Mechanism  

E-Print Network [OSTI]

Carbon Nanotube DNA Sensor and Sensing Mechanism Xiaowu Tang,*,, Sarunya Bansaruntip, Nozomi; Revised Manuscript Received June 7, 2006 ABSTRACT We report the fabrication of single-walled carbon nanotube (SWNT) DNA sensors and the sensing mechanism. The simple and generic protocol for label

Le Roy, Robert J.

353

Lawrence E. Carlson Professor of Mechanical Engineering  

E-Print Network [OSTI]

Education, American Society of Mechanical Engineers, pp. 31-33. Solar Stirling Engine 2Cam Rock ClimbingPortfolio Lawrence E. Carlson Professor of Mechanical Engineering Founding Co-Director, Integrated Teaching and Learning Program and Laboratory University of Colorado at Boulder #12;ENGINEERING EDUCATION

Carlson, Lawrence E.

354

Build Something That Moves Mechanical Engineering  

E-Print Network [OSTI]

that Mechanical Engineers build up the energy at the beginning of the ride by raising them to a high pointBuild Something That Moves Mechanical Engineering Objective This lesson helps students learn how to create potential energy: through rolling, torque, pressure, springs, etc. Students learn how to create

Provancher, William

355

ASSISTANT PROFESSOR OF MECHANICAL ENGINEERING COMPUTATIONAL MODELING  

E-Print Network [OSTI]

ASSISTANT PROFESSOR OF MECHANICAL ENGINEERING COMPUTATIONAL MODELING COLLEGE OF ENGINEERING The Department of Mechanical Engineering at Colorado State University invites applications for a tenure processes with emphasis on applying the models to engineering systems of interest in the energy or materials

356

Quantum mechanical effects from deformation theory  

SciTech Connect (OSTI)

We consider deformations of quantum mechanical operators by using the novel construction tool of warped convolutions. The deformation enables us to obtain several quantum mechanical effects where electromagnetic and gravitomagnetic fields play a role. Furthermore, a quantum plane can be defined by using the deformation techniques. This in turn gives an experimentally verifiable effect.

Much, A. [Max-Planck-Institute for Mathematics in the Sciences, 04103 Leipzig, Germany and Institute for Theoretical Physics, University of Leipzig, 04009 Leipzig (Germany)] [Max-Planck-Institute for Mathematics in the Sciences, 04103 Leipzig, Germany and Institute for Theoretical Physics, University of Leipzig, 04009 Leipzig (Germany)

2014-02-15T23:59:59.000Z

357

Sibley School of Mechanical and Aerospace Engineering  

E-Print Network [OSTI]

design; sustainable design; additive manufacturing; manufacturing of advanced and multifunctional 607 255-0813 mc288@cornell.edu October 2014 Faculty Position in Design and Manufacturing Mechanical and Manufacturing, as related strongly to the disciplines within Mechanical and Aerospace Engineering. Candidates

Bonassar, Larry

358

Mechanical Engineering Department 04 November 2013  

E-Print Network [OSTI]

Department Light Sources Light emitting diode (LED) When a light-emitting diode is forward biased (switched a p-n junction #12;Mechanical Engineering Department Light Sources Light emitting diode (LED the p-n junction #12;Mechanical Engineering Department Light Sources Light emitting diode (LED) #12

Furlong, Cosme

359

College of Engineering ME Mechanical Engineering  

E-Print Network [OSTI]

330, MA 214, and engineering standing. ME 330 FLUID MECHANICS. (3) Introduction to the physical through pipes and around bodies. Application and design of fluid handling systems. Prereq: EngineeringCollege of Engineering ME Mechanical Engineering KEY: # = new course * = course changed = course

MacAdam, Keith

360

Modeling the mechanical response of PBX 9501  

SciTech Connect (OSTI)

An engineering overview of the mechanical response of Plastic-Bonded eXplosives (PBXs), specifically PBX 9501, will be provided with emphasis on observed mechanisms associated with different types of mechanical testing. Mechanical tests in the form of uniaxial tension, compression, cyclic loading, creep (compression and tension), and Hopkinson bar show strain rate and temperature dependence. A range of mechanical behavior is observed which includes small strain recoverable response in the form of viscoelasticity; change in stiffness and softening beyond peak strength due to damage in the form microcracks, debonding, void formation and the growth of existing voids; inelastic response in the form of irrecoverable strain as shown in cyclic tests, and viscoelastic creep combined with plastic response as demonstrated in creep and recovery tests. The main focus of this paper is to elucidate the challenges and issues involved in modeling the mechanical behavior of PBXs for simulating thermo-mechanical responses in engineering components. Examples of validation of a constitutive material model based on a few of the observed mechanisms will be demonstrated against three point bending, split Hopkinson pressure bar and Brazilian disk geometry.

Ragaswamy, Partha [Los Alamos National Laboratory; Lewis, Matthew W [Los Alamos National Laboratory; Liu, Cheng [Los Alamos National Laboratory; Thompson, Darla G [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Budget Feasible Mechanism Design YARON SINGER  

E-Print Network [OSTI]

Budget Feasible Mechanism Design YARON SINGER Harvard University In this letter we sketch a brief introduction to budget feasible mechanism design. This framework captures scenarios where the goal is to buy that arise from the tension between incentive compatibility and the budget constraint, and leaves many

Chen, Yiling

362

NEW FACULTY SEARCHES IN MECHANICAL ENGINEERING  

E-Print Network [OSTI]

for nuclear engineering include, but are not limited to: nuclear power and science, reactor physics, nuclear engineering, or a related field. The Department is home to 50 faculty, 270 graduate students, and 1000NEW FACULTY SEARCHES IN MECHANICAL ENGINEERING AND NUCLEAR ENGINEERING The Department of Mechanical

363

Department of Mechanical and Aerospace Engineering Updated: Spring 2012  

E-Print Network [OSTI]

Department of Mechanical and Aerospace Engineering Updated: Spring 2012 MECHANICAL ENGINEERING TECHNICAL ELECTIVES Mechanical Engineering Majors are required to complete four (4) Technical Electives Century Energy Technologies II MAE 135 Computational Mechanics MAE 180A Spacecraft Guidance MAE 181 Space

Krstic, Miroslav

364

West Virginia University 1 Department of Mechanical and Aerospace  

E-Print Network [OSTI]

, solid mechanics, energy systems, engineering materials, automatic controls, mechatronicsWest Virginia University 1 Department of Mechanical and Aerospace Engineering Degrees Offered Master of science in mechanical engineering Master of science in engineering with a major in mechanical

Mohaghegh, Shahab

365

MECHANICAL ENGINEERING SENIOR WINS FIRST PLACE IN INTERNATIONAL COMPETITION  

E-Print Network [OSTI]

MECHANICAL ENGINEERING SENIOR WINS FIRST PLACE IN INTERNATIONAL COMPETITION 2009-2010 Mechanical. The competition took place at the 2010 ASME International Mechanical Engineering Congress and Exposition measurement of curvature and mechanical properties of cellular specimens. This successful project

Holsinger, Kent

366

Measuring the mechanical properties of the respiratory system in patients  

E-Print Network [OSTI]

Measuring the mechanical properties of the respiratory system in patients on mechanical ventilators's lungs. Only system capable of convenient, ongoing assessment of respiratory mechanical function is currently widely performed by measuring pressure and flow delivered by a mechanical ventilator. However

Hayden, Nancy J.

367

Mechanical Engineering 1 Faculty of engineering, Department of  

E-Print Network [OSTI]

Engineering with Nuclear Engineering The Mechanical Engineering Department (ME), along with those of Chemical in nuclear engineering. The degree title will be "MEng in Mechanical Engineering with Nuclear EngineeringMechanical Engineering 1 Faculty of engineering, Department of --Mechanical Engineering

368

AERONAUTICAL, MECHANICAL & NUCLEAR ENGINEERING UNDERGRADUATE HANDBOOK RENSSELAER POLYTECHNIC INSTITUTE  

E-Print Network [OSTI]

1 AERONAUTICAL, MECHANICAL & NUCLEAR ENGINEERING UNDERGRADUATE HANDBOOK 11/8/2010 RENSSELAER POLYTECHNIC INSTITUTE School of Engineering Aeronautical, Mechanical, & Nuclear Engineering #12;2 AERONAUTICAL, MECHANICAL & NUCLEAR ENGINEERING UNDERGRADUATE HANDBOOK 11/8/2010 Department of Mechanical, Aerospace

Salama, Khaled

369

Basic mechanisms for the new millennium  

SciTech Connect (OSTI)

This part of the Short Course will review the basic mechanisms for radiation effects in semiconductor devices. All three areas of radiation damage will be considered -- total dose, displacement effects, and single event effects. Each of these areas will be discussed in turn. First an overview and background will be provided on the historical understanding of the damage mechanism. Then there will be a discussion of recent enhancements to the understanding of those mechanisms and an up-to-date picture provided of the current state of knowledge. Next the potential impact of each of these damage mechanisms on devices in emerging technologies and how the mechanisms may be used to understand device performance will be described, with an emphasis on those likely to be of importance in the new millennium. Finally some additional thoughts will be presented on how device scaling expected into the next century may impact radiation hardness.

Dressendorfer, P.V.

1998-09-01T23:59:59.000Z

370

Mechanism of Selective Oxidation of Propene to Acrolein on Bismuth Molybdates from Quantum Mechanical Calculations  

E-Print Network [OSTI]

Mechanism of Selective Oxidation of Propene to Acrolein on Bismuth Molybdates from Quantum for understanding the fundamental chemical mechanisms underlying the selective oxidation of propene to acrolein to form acrolein, and acrolein desorption. The formation of -allyl intermediate is reversible

Goddard III, William A.

371

Thermal/MechanicalThermal/Mechanical Properties of WoodProperties of Wood--PVCPVC  

E-Print Network [OSTI]

.composites. Heat flow, heat capacity, andHeat flow, heat capacity, and enthalpyenthalpy Glass transition/Mechanical Analysis TechniquesThermal/Mechanical Analysis Techniques #12;Rubbery Leathery Viscous liquid Rigid (Semi

372

Department of Mechanics KTH, SE-100 44 Stockholm, Sweden  

E-Print Network [OSTI]

project descriptions 6.1 Theoretical and applied mechanics 6.2 Fluid mechanics 6.3 Education didactics 7

Haviland, David

373

Department of Mechanics KTH, S-100 44 Stockholm, Sweden  

E-Print Network [OSTI]

project descriptions 6.1 Theoretical and applied mechanics 6.2 Fluid mechanics 6.3 Education didactics 7

Haviland, David

374

News for Mechanical Engineering, Aerospace Engineering, Engineering Mechanics, and Nuclear Engineering Alumni  

E-Print Network [OSTI]

in contributing to the key areas of energy, transportation, manufacturing, environment, and health. Q: What do youNews for Mechanical Engineering, Aerospace Engineering, Engineering Mechanics, and Nuclear of the Department of Mechanical and Aerospace Engineering effective July 1, 2012. Selamet has been a professor

Singh, Rajendra

375

Negative hair-bundle stiffness betrays a mechanism for mechanical amplification by the hair cell  

E-Print Network [OSTI]

Negative hair-bundle stiffness betrays a mechanism for mechanical amplification by the hair cell P. Hudspeth, August 15, 2000 Hearing and balance rely on the ability of hair cells in the inner ear to sense miniscule mechanical stimuli. In each cell, sound or acceleration deflects the mechanosensitive hair bundle

Hudspeth, A. James

376

Department of Mechanical and Aerospace Engineering The Department of Mechanical and Aerospace Engineering (MAE) at the University of Florida invites  

E-Print Network [OSTI]

Department of Mechanical and Aerospace Engineering The Department of Mechanical and aerospace sciences, (4) cellular mechanics and engineering, (5) energy, with emphasis on renewable of the above areas. Applicants must have a Ph.D. in mechanical or aerospace engineering

Roy, Subrata

377

Water Assisted Reaction Mechanism of OH- with CCl4 in Aqueous Solution - Hybrid Quantum Mechanical and Molecular Mechanics Investigation  

SciTech Connect (OSTI)

The OH- (H2O) + CCl4 reaction in aqueous solution was investigated using the combined quantum mechanical and molecular mechanics approach. The reaction mechanism of OH- (H2O) + CCl4 consists of two concerted steps - formation of OH- in the favorable attack conformation via the proton transfer process, and the nucleophilic substitution process in which the newly formed OH- attacks the CCl4. The free energy activation barrier is 38.2 kcal/mol at CCSD(T)/MM level of theory for this reaction, which is about 10.3 kcal/mol higher than that of the direct nucleophilic substitution mechanism of the OH- + CCl4 reaction in aqueous solution.

Chen, Jie; Yin, Hongyun; Wang, Dunyou; Valiev, Marat

2013-02-20T23:59:59.000Z

378

A steering mechanism for phototaxis in Chlamydomonas  

E-Print Network [OSTI]

Chlamydomonas shows both positive and negative phototaxis. It has a single eyespot near its equator and as the cell rotates during forward motion the light signal received by the eyespot varies. We use a simple mechanical model of Chlamydomonas that couples the flagellar beat pattern to the light intensity at the eyespot to demonstrate a mechanism for phototactic steering that is consistent with observations. The direction of phototaxis is controlled by a parameter in our model and the steering mechanism is robust to noise. Our model shows switching between directed phototaxis when the light is on and run-and-tumble behaviour in the dark.

Rachel R. Bennett; Ramin Golestanian

2014-12-19T23:59:59.000Z

379

Mechanical Design Engineer | Princeton Plasma Physics Lab  

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: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior of IndiumMechanicalMechanical

380

Wave Packet under Continuous Measurement via Bohmian Mechanics  

E-Print Network [OSTI]

A new quantum mechanical description of the dynamics of wave packet under continuous measurement is formulated via Bohmian mechanics. The solution to this equation is found through a wave packet approach which establishes a direct correlation between a classical variable with a quantum variable describing the dynamics of the center of mass and the width of the wave packet. The approach presented in this paper gives a comparatively clearer picture than approaches using restrited path integrals and master equation approaches. This work shows how the extremely irregular character of classical chaos can be reconciled with the smooth and wavelike nature of phenomena on the atomic scale. It is demonstrated that a wave packet under continuous quantum measurement displays both chaotic and non-chaotic features. The Lyapunov characteristic exponents for the trajectories of classical particle and the quantum wave packet center of mass are calculated and their chaoticities are demonstrated to be about the same. Nonetheless, the width of the wave packet exhibits a non-chaotic behavior and allows for the possibility to beat the standard quantum limit by means of transient, contractive states.

Antonio B. Nassar

2010-01-25T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Essays on dynamic games and mechanism design  

E-Print Network [OSTI]

The dissertation considers three topics in dynamic games and mechanism design. In both problems, asymmetric information causes inefficiency in production and allocation. The first chapter considers the inefficiency from ...

Lang, Ruitian

2014-01-01T23:59:59.000Z

382

Mechanical energy storage in carbon nanotube springs  

E-Print Network [OSTI]

Energy storage in mechanical springs made of carbon nanotubes is a promising new technology. Springs made of dense, ordered arrays of carbon nanotubes have the potential to surpass both the energy density of electrochemical ...

Hill, Frances Ann

2011-01-01T23:59:59.000Z

383

An examination of the mechanisms of incubation  

E-Print Network [OSTI]

Several hypotheses have been offered to explain the mechanisms involved in incubation, the phenomenon in which resolution of a problem benefits more from interruption than continuous solution attempts. The predictions of three hypotheses were tested...

Kohn, Nicholas William

2007-04-25T23:59:59.000Z

384

Mechanical behavior of elastic rods under constraint  

E-Print Network [OSTI]

We present the results of an experimental investigation of the mechanics of thin elastic rods under a variety of loading conditions. Four scenarios are explored, with increasing complexity: i) the shape of a naturally ...

Miller, James Thomas, Ph. D. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

385

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING  

E-Print Network [OSTI]

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING DEPARTMENT 2010/2011 September).................1 . REQUIREMENTS FOR A MASTER OF SCIENCE DEGREE IN INDUSTRIAL ENGINEERING AND OPERATIONS RESEARCH)...................................................................................................1 DUAL MASTER IN BUSINESS ADMINISTRATION AND INDUSTRIAL ENGINEERING (72 CREDITS

Mountziaris, T. J.

386

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING  

E-Print Network [OSTI]

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING DEPARTMENT 2009/2010 September).................1 . REQUIREMENTS FOR A MASTER OF SCIENCE DEGREE IN INDUSTRIAL ENGINEERING (30 CREDITS)...............1 DUAL MASTER IN BUSINESS ADMINISTRATION AND INDUSTRIAL ENGINEERING (72 CREDITS

Mountziaris, T. J.

387

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING  

E-Print Network [OSTI]

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING DEPARTMENT 2013/2014 September..............................3 C. COURSE REQUIREMENTS FOR A MASTER OF SCIENCE DEGREE IN INDUSTRIAL ENGINEERING AND OPERATIONS............................4 E. DUAL MASTER IN BUSINESS ADMINISTRATION AND INDUSTRIAL ENGINEERING AND OPERATIONS RESEARCH

Massachusetts at Amherst, University of

388

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING  

E-Print Network [OSTI]

GRADUATE STUDENT INFORMATION MECHANICAL AND INDUSTRIAL ENGINEERING DEPARTMENT 2011/2012 September).................1 REQUIREMENTS FOR A MASTER OF SCIENCE DEGREE IN INDUSTRIAL ENGINEERING AND OPERATIONS RESEARCH (30).....................................................................................................2 DUAL MASTER IN BUSINESS ADMINISTRATION AND INDUSTRIAL ENGINEERING (72 CREDITS

Mountziaris, T. J.

389

Aspects of the mechanics of metallic glasses  

E-Print Network [OSTI]

Metallic glasses are amorphous materials that possess unique mechanical properties, such as high tensile strengths and good fracture toughnesses. Also, since they are amorphous, metallic glasses exhibit a glass transition, ...

Henann, David Lee

2011-01-01T23:59:59.000Z

390

Department of Mechanical Engineering RESEARCH PROJECT  

E-Print Network [OSTI]

#12;Department of Mechanical Engineering OVERVIEW 路 Combustion of alternative biofuels for automotive 路 Combustion properties of biofuels, including biodiesel and biojet fuels 路 Shock tube ignition experiments for a New Generation of Aircrafts 路 Jets Manipulation and

Barthelat, Francois

391

Ankle mechanical impedance under muscle fatigue  

E-Print Network [OSTI]

This study reports the effects of ankle muscle fatigue on ankle mechanical impedance. It suggests that decreasing ankle impedance with muscle fatigue may contribute to an increased probability of ankle injury. If confirmed, ...

Wang, Shuo, S.B. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

392

B. N. SHASHIKANTH Mechanical Engineering Department  

E-Print Network [OSTI]

B. N. SHASHIKANTH Mechanical Engineering Department MSC 3450, PO Box 30001 New Mexico State of Kirchhoff's equations for the motion of a rigid body (2-D or 3-D) in an ideal fluid without vorticity [12

Shashikanth, Banavara N.

393

Inserting Group Variables into Fluid Mechanics  

E-Print Network [OSTI]

A fluid, like a quark-gluon plasma, may possess degrees of freedom indexed by a group variable, which retains its identity even in the fluid/continuum description. Conventional Eulerian fluid mechanics is extended to encompass this possibility.

R. Jackiw

2004-10-28T23:59:59.000Z

394

Mechanics and Design, Manufacturing Professor Hani Naguib  

E-Print Network [OSTI]

Mechanical and Industrial Engineering Manufacturing What is Manufacturing? The transformation of materials. Apple Canada(Se12), Revenue: $5,067,109 9. CGI Group(Se12), Revenue: $4,786,857 10. Siemens Canada(Se12

395

SPOTLIGHT on: Ellen Messer Biomedical (Mechanical) Engineering  

E-Print Network [OSTI]

SPOTLIGHT on: Ellen Messer Biomedical (Mechanical) Engineering Undergraduate Hometown: Easthampton of Biomedical Engineering, Undergraduate Research Assistant Program at the Brain and Creativity Institute, MA Involvement at USC: USC Marathon Team, Society of Women Engineers, Associated Students

Wang, Hai

396

Mechanical and Industrial Engineering 230 Spring 2012  

E-Print Network [OSTI]

cycles Refrigeration and heat pump systems Final Exam (Date and time TBA) Suggested Reading Chapter 1Mechanical and Industrial Engineering 230 Spring 2012 Thermodynamics Course Syllabus Date Week 1 (1

Rothstein, Jonathan

397

Loss mechanisms in turbine tip clearance flows  

E-Print Network [OSTI]

Numerical simulations of tip clearance ow have been carried out to dene the loss generation mechanisms associated with tip leakage in unshrouded axial turbines. Mix- ing loss between the leakage, which takes the form of a ...

Huang, Arthur (Arthur C.)

2011-01-01T23:59:59.000Z

398

Mechanical property measurement by indentation techniques  

E-Print Network [OSTI]

The mechanical properties of materials are usually evaluated by performing a tensile or hardness test on the sample. Tensile tests are often time consuming, destructive and need specially prepared specimens. On the other hand, there is no direct...

Janakiraman, Balasubramanian

2006-04-12T23:59:59.000Z

399

MECHANICALENGINEERING The Department of Mechanical Engineering presents  

E-Print Network [OSTI]

Thermal Power Plants By Corey Lee Hardin Master of Science, Graduate Program in Mechanical Engineering for concentrated solar thermal power (CSP) systems. Both laboratory scale and prototype flow loop scale experiments

400

The Mechanized Verification of Garbage Collector Implementations  

E-Print Network [OSTI]

Abstract The Mechanized Verification of Garbage Collector Implementations Andrew Evan Mc complex, requiring a garbage collector. Garbage collectors are becoming increasingly sophis- ticated to adapt them to high-performance, concurrent and real-time applications, making internal collector

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Mechanics of amorphous polymers and polymer gels  

E-Print Network [OSTI]

Many applications of amorphous polymers require a thermo-mechanically coupled large-deformation elasto-viscoplasticity theory which models the strain rate and temperature dependent response of amorphous polymeric materials ...

Chester, Shawn Alexander

2011-01-01T23:59:59.000Z

402

Mechanics of deformation of carbon nanotubes  

E-Print Network [OSTI]

The deformation mechanics of multi-walled carbon nanotubes (MWCNT) and vertically aligned carbon nanotube (VACNT) arrays were studied using analytical and numerical methods. An equivalent orthotropic representation (EOR) ...

Garg, Mohit, S.M. Massachusetts Institute of Technology

2005-01-01T23:59:59.000Z

403

OKLAHOMA STATE UNIVERSITY Mechanical and Aerospace Engineering  

E-Print Network [OSTI]

OKLAHOMA STATE UNIVERSITY Mechanical and Aerospace Engineering Assistant Professor The School (6) tenure-track faculty positions at the Assistant Professor rank. Exceptional candidates in all precision manufacturing, HVAC&R, vibrations, aircraft and spacecraft, robotics, unmanned systems, autonomy

404

Exploring the mechanisms of protein folding  

E-Print Network [OSTI]

Neither of the two prevalent theories, namely thermodynamic stability and kinetic stability, provides a comprehensive understanding of protein folding. The thermodynamic theory is misleading because it assumes that free energy is the exclusive dominant mechanism of protein folding, and attributes the structural transition from one characteristic state to another to energy barriers. Conversely, the concept of kinetic stability overemphasizes dominant mechanisms that are related to kinetic factors. This article explores the stability condition of protein structures from the viewpoint of meso-science, paying attention to the compromise in the competition between minimum free energy and other dominant mechanisms. Based on our study of complex systems, we propose that protein folding is a meso-scale, dissipative, nonlinear and non-equilibrium process that is dominated by the compromise between free energy and other dominant mechanisms such as environmental factors. Consequently, a protein shows dynamic structures,...

Xu, Ji; Ren, Ying; Li, Jinghai

2013-01-01T23:59:59.000Z

405

Development of a Mechanics Reasoning Inventory  

E-Print Network [OSTI]

Strategic knowledge is required to appropriately organize procedures and concepts to solve problems. We are developing a standardized instrument assessing strategic knowledge in the domain of introductory mechanics. This ...

Pawl, Andrew

2012-01-01T23:59:59.000Z

406

Tall building collapse mechanisms initiated by fire  

E-Print Network [OSTI]

This paper introduces the hypothesis of two possible failure mechanisms for tall buildings in multiple floor fires. This paper extends the previous work done on the WTC towers by investigating more "generic" tall building frames made of standard...

Usmani, Asif; Roben, Charlotte; Johnston, Louise; Flint, Graeme

407

Micromechanical actuators for insect flight mechanics  

E-Print Network [OSTI]

This project aims to develop MEMS actuators to aid in the study of insect flight mechanics. Specifically, we are developing actuators that can stimulate the antennae of the crepuscular hawk moth Manduca Sexta. The possible ...

Zhou, Hui, M.S. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

408

Introduction 5 Mechanism of Irradiation Hardening 5  

E-Print Network [OSTI]

these obstacles either by the Orowan mechanism , in which the dislocations bow out between the obstacles, thermal activation can help in overcoming the energy barrier caused by the obstacles. This thermal

409

Studies on the mechanism of alcohol oxidase  

E-Print Network [OSTI]

The flavoprotein alcohol oxidase from the yeast Candida boidinii catalyzes the oxidation of primary alcohols to aidehydes with transfer of the electrons to molecular oxygen to form hydrogen peroxide. The mechanism of alcohol oxidase with beta...

Menon, Vipin

1994-01-01T23:59:59.000Z

410

Synchronization of Mechanical Oscillators: An Experimental Study  

E-Print Network [OSTI]

SYNCHRONIZATION OF MECHANICAL OSCILLATORS: AN EXPERIMENTAL STUDY A Thesis by ROOZBEH DANESHVAR Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER OF SCIENCE December... 2010 Major Subject: Electrical Engineering SYNCHRONIZATION OF MECHANICAL OSCILLATORS: AN EXPERIMENTAL STUDY A Thesis by ROOZBEH DANESHVAR Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements...

Daneshvar, Roozbeh

2011-02-22T23:59:59.000Z

411

Mechanical Measurements of the ALMA Prototype Antennas  

E-Print Network [OSTI]

The specifications of the Atacama Large Millimeter Array (ALMA) have placed stringent requirements on the mechanical performance of its antennas. As part of the evaluation process of the VertexRSI and Alcatel EIE Consortium (AEC) ALMA prototype antennas, measurements of the path length, thermal, and azimuth bearing performance were made under a variety of weather conditions and observing modes. The results of mechanical measurements, reported here, are compared to the antenna specifications.

A. Greve; J. G. Mangum

2007-10-30T23:59:59.000Z

412

Key Physical Mechanisms in Nanostructured Solar Cells  

SciTech Connect (OSTI)

The objective of the project was to study both theoretically and experimentally the excitation, recombination and transport properties required for nanostructured solar cells to deliver energy conversion efficiencies well in excess of conventional limits. These objectives were met by concentrating on three key areas, namely, investigation of physical mechanisms present in nanostructured solar cells, characterization of loss mechanisms in nanostructured solar cells and determining the properties required of nanostructured solar cells in order to achieve high efficiency and the design implications.

Dr Stephan Bremner

2010-07-21T23:59:59.000Z

413

Quantum mechanics and the time travel paradox  

E-Print Network [OSTI]

The closed causal chains arising from backward time travel do not lead to paradoxes if they are self consistent. This raises the question as to how physics ensures that only self-consistent loops are possible. We show that, for one particular case at least, the condition of self consistency is ensured by the interference of quantum mechanical amplitudes associated with the loop. If this can be applied to all loops then we have a mechanism by which inconsistent loops eliminate themselves.

David T. Pegg

2005-06-17T23:59:59.000Z

414

Mechanism of vacancy formation induced by hydrogen in tungsten  

SciTech Connect (OSTI)

We report a hydrogen induced vacancy formation mechanism in tungsten based on classical molecular dynamics simulations. We demonstrate the vacancy formation in tungsten due to the presence of hydrogen associated directly with a stable hexagonal self-interstitial cluster as well as a linear crowdion. The stability of different self-interstitial structures has been further studied and it is particularly shown that hydrogen plays a crucial role in determining the configuration of SIAs, in which the hexagonal cluster structure is preferred. Energetic analysis has been carried out to prove that the formation of SIA clusters facilitates the formation of vacancies. Such a mechanism contributes to the understanding of the early stage of the hydrogen blistering in tungsten under a fusion reactor environment.

Liu, Yi-Nan [School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191 (China) [School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191 (China); Association EURATOM-TEKES, University of Helsinki, Helsinki, PO Box 64, 00560 (Finland); Ahlgren, T.; Bukonte, L.; Nordlund, K. [Association EURATOM-TEKES, University of Helsinki, Helsinki, PO Box 64, 00560 (Finland)] [Association EURATOM-TEKES, University of Helsinki, Helsinki, PO Box 64, 00560 (Finland); Shu, Xiaolin; Yu, Yi; Lu, Guang-Hong, E-mail: LGH@buaa.edu.cn [School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191 (China)] [School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191 (China); Li, Xiao-Chun [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031 (China)] [Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, 230031 (China)

2013-12-15T23:59:59.000Z

415

A quantum mechanical version of Price's theorem for Gaussian states  

E-Print Network [OSTI]

This paper is concerned with integro-differential identities which are known in statistical signal processing as Price's theorem for expectations of nonlinear functions of jointly Gaussian random variables. We revisit these relations for classical variables by using the Frechet differentiation with respect to covariance matrices, and then show that Price's theorem carries over to a quantum mechanical setting. The quantum counterpart of the theorem is established for Gaussian quantum states in the framework of the Weyl functional calculus for quantum variables satisfying the Heisenberg canonical commutation relations. The quantum mechanical version of Price's theorem relates the Frechet derivative of the generalized moment of such variables with respect to the real part of their quantum covariance matrix with other moments. As an illustrative example, we consider these relations for quadratic-exponential moments which are relevant to risk-sensitive quantum control.

Igor G. Vladimirov

2014-09-15T23:59:59.000Z

416

Fluid Mechanical and Electrical Fluctuation Forces in Colloids  

E-Print Network [OSTI]

Fluctuations in fluid velocity and fluctuations in electric fields may both give rise to forces acting on small particles in colloidal suspensions. Such forces in part determine the thermodynamic stability of the colloid. At the classical statistical thermodynamic level, the fluid velocity and electric field contributions to the forces are comparable in magnitude. When quantum fluctuation effects are taken into account, the electric fluctuation induced van der Waals forces dominate those induced by purely fluid mechanical motions. The physical principles are applied in detail for the case of colloidal particle attraction to the walls of the suspension container and more briefly for the case of forces between colloidal particles.

D. Drosdoff; A. Widom

2004-10-06T23:59:59.000Z

417

Nonlinear Phenomenology from Quantum Mechanics: Soliton in a Lattice  

E-Print Network [OSTI]

We study a soliton in an optical lattice holding bosonic atoms quantum mechanically using both an exact numerical solution and quantum Monte Carlo simulations. The computation of the state is combined with an explicit account of the measurements of the numbers of the atoms at the lattice sites. In particular, importance sampling in the quantum Monte Carlo method arguably produces faithful simulations of individual experiments. Even though the quantum state is invariant under lattice translations, an experiment may show a noisy version of the localized classical soliton.

Juha Javanainen; Uttam Shrestha

2009-03-29T23:59:59.000Z

418

Unification of fluctuation theorems and one-shot statistical mechanics  

E-Print Network [OSTI]

Fluctuation-dissipation relations, such as Crooks' Theorem and Jarzynski's Equality, are powerful tools in quantum and classical nonequilibrium statistical mechanics. We link these relations to a newer approach known as "one-shot statistical mechanics." Rooted in one-shot information theory, one-shot statistical mechanics concerns statements true of every implementation of a protocol, not only of averages. We show that two general models for work extraction in the presence of heat baths obey fluctuation relations and one-shot results. We demonstrate the usefulness of this bridge between frameworks in several ways. Using Crooks' Theorem, we derive a bound on one-shot work quantities. These bounds are tighter, in certain parameter regimes, than a bound in the fluctuation literature and a bound in the one-shot literature. Our bounds withstand tests by numerical simulations of an information-theoretic Carnot engine. By analyzing data from DNA-hairpin experiments, we show that experiments used to test fluctuation theorems also test one-shot results. Additionally, we derive one-shot analogs of a known equality between a relative entropy and the average work dissipated as heat. Our unification of experimentally tested fluctuation relations with one-shot statistical mechanics is intended to bridge one-shot theory to applications.

Nicole Yunger Halpern; Andrew J. P. Garner; Oscar C. O. Dahlsten; Vlatko Vedral

2014-09-12T23:59:59.000Z

419

AC 2007-134: MECHANICAL ENGINEERING FOR MIDDLE SCHOOL STUDENTS: AN OVERVIEW OF THE MECHANICAL ENGINEERING PORTION  

E-Print Network [OSTI]

AC 2007-134: MECHANICAL ENGINEERING FOR MIDDLE SCHOOL STUDENTS: AN OVERVIEW OF THE MECHANICAL Research and Teaching Assistant in the Department of Mechanical Engineering at Michigan State University. To date, he has taught in the areas of mechanical engineering analysis and mechanical design. Mr. Rhoads

Rhoads, Jeffrey F.

420

The mechanical properties of FeAl  

SciTech Connect (OSTI)

Only in the last few years has progress been made in obtaining reproducible mechanical properties data for FeAl. Two sets of observations are the foundation of this progress. The first is that the large vacancy concentrations that exist in FeAl at high temperature are easily retained at low temperature and that these strongly affect the low-temperature mechanical properties. The second is that RT ductility is adversely affected by water vapor. Purpose of this paper is not to present a comprehensive overview of the mechanical properties of FeAl but rather to highlight our understanding of key phenomena and to show how an understanding of the factors which control the yield strength and fracture behavior has followed the discovery of the above two effects. 87 refs, 9 figs.

Baker, I. [Dartmouth Coll., Hanover, NH (United States); George, E.P. [Oak Ridge National Lab., TN (United States)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Full Nexus between Newtonian and Relativistic Mechanics  

E-Print Network [OSTI]

A full nexus between Newtonian and relativistic mechanics is set. Contrarily to what is commonly thought, Newtonian mechanics can be amended to suit all speeds up to c. It is demonstrated that when introducing the fact that the pulse of oscillators, i.e. emitters and clocks, is sensitive to speed, the Newtonian framework can be extended to all speeds. For this aim, it is formulated the concept of actor scenario vs. observer scenario. This differentiation is essential to avoid confusion between effective reality (actor scenario) and appearance (observer scenario). Measurements are subjected to kinematical aberrations, the observer scenario being inertial. These must be removed to attain intrinsic reality, i.e. that of actors. The lack of demarcation between the two scenarios leads to conceptual confusions. The amended Newtonian mechanics is of full application. Here, it has been mainly applied to the Newtonian Doppler effect, amended to suit all speeds.

G. Sardin

2008-06-01T23:59:59.000Z

422

Multichannel framework for singular quantum mechanics  

SciTech Connect (OSTI)

A multichannel S-matrix framework for singular quantum mechanics (SQM) subsumes the renormalization and self-adjoint extension methods and resolves its boundary-condition ambiguities. In addition to the standard channel accessible to a distant (揳symptotic) observer, one supplementary channel opens up at each coordinate singularity, where local outgoing and ingoing singularity waves coexist. The channels are linked by a fully unitary S-matrix, which governs all possible scenarios, including cases with an apparent nonunitary behavior as viewed from asymptotic distances. -- Highlights: 旳 multichannel framework is proposed for singular quantum mechanics and analogues. 昑he framework unifies several established approaches for singular potentials. 昐ingular points are treated as new scattering channels. 昇onunitary asymptotic behavior is subsumed in a unitary multichannel S-matrix. 旵onformal quantum mechanics and the inverse quartic potential are highlighted.

Camblong, Horacio E., E-mail: camblong@usfca.edu [Department of Physics and Astronomy, University of San Francisco, San Francisco, CA 94117-1080 (United States); Epele, Luis N., E-mail: epele@fisica.unlp.edu.ar [Laboratorio de F韘ica Te髍ica, Departamento de F韘ica, IFLP, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 671900 La Plata (Argentina); Fanchiotti, Huner, E-mail: huner@fisica.unlp.edu.ar [Laboratorio de F韘ica Te髍ica, Departamento de F韘ica, IFLP, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 671900 La Plata (Argentina)] [Laboratorio de F韘ica Te髍ica, Departamento de F韘ica, IFLP, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 671900 La Plata (Argentina); Garc韆 Canal, Carlos A., E-mail: garcia@fisica.unlp.edu.ar [Laboratorio de F韘ica Te髍ica, Departamento de F韘ica, IFLP, CONICET, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 671900 La Plata (Argentina); Ord篑ez, Carlos R., E-mail: ordonez@uh.edu [Department of Physics, University of Houston, Houston, TX 77204-5506 (United States)

2014-01-15T23:59:59.000Z

423

THE DEPARTMENT OF Mechanical & Industrial Engineering's graduate programs ed-  

E-Print Network [OSTI]

THE DEPARTMENT OF Mechanical & Industrial Engineering's graduate programs ed- ucate students Mechanical and Industrial Engineering faculty members conduct research in affiliation with vari- ous College I N Industrial Engineering Department of Mechanical & Industrial Engineering 3131 Seamans Center

Kusiak, Andrew

424

College of Engineering | Mechanical and Industrial Engineering Department  

E-Print Network [OSTI]

College of Engineering | Mechanical and Industrial Engineering Department Are you up for a challenge? In the Mechanical and Industrial Engineering Innovation Shop at UMass Amherst, we challenge, instruments, and computers to support mechanical and industrial engineering projects 颅 including all

Mountziaris, T. J.

425

Alternative Mechanical Structure for LARP Nb3Sn Quadrupoles  

E-Print Network [OSTI]

2] G . Ambrosio el ai, "Mechanical performance of the L A RAlternative Mechanical Structure LARP Nb Sn Quadrupoles M .was performed for the 2-D mechanical structure. 2-D 6-node

Anerella, M.

2012-01-01T23:59:59.000Z

426

FINITE FRACTURE MECHANICS OF MATRIX MICROCRACKING IN COMPOSITES  

E-Print Network [OSTI]

FINITE FRACTURE MECHANICS OF MATRIX MICROCRACKING IN COMPOSITES JOHN A. NAIRN INTRODUCTION damage following complex loading conditions. This chapter describes a fracture mechanics approach to the microcracking problem. A complicating feature of composite fracture mechanics analysis is that laminates often

Nairn, John A.

427

Preliminary Notice of Violation,Western Allied Mechanical, Inc...  

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

Western Allied Mechanical, Inc. - WEA-2009-03 Preliminary Notice of Violation,Western Allied Mechanical, Inc. - WEA-2009-03 April 7, 2009 Issued to Western Allied Mechanical, Inc....

428

Mechanical Network in Titin Immunoglobulin from Force Distribution Analysis  

E-Print Network [OSTI]

Mechanical Network in Titin Immunoglobulin from Force Distribution Analysis Wolfram Stacklies1. , M, Stuttgart, Germany Abstract The role of mechanical force in cellular processes is increasingly revealed force propagates within proteins determines their mechanical behavior yet remains largely unknown. We

Gr盲ter, Frauke

429

Mechanical design of a high field common coil magnet  

E-Print Network [OSTI]

This paper presents the mechanical design for a 14 tesla 2-The design addresses mechanical issues particular to theLBNL #43481 SC MAG #668 MECHANICAL DESIGN OF A mGH FIELD

Caspi, S.

2011-01-01T23:59:59.000Z

430

An instruction issue mechanism for superscalar processors supporting multiple threads  

E-Print Network [OSTI]

An instruction issue mechanism for superscalar processors supporting multiple threads is presented. This mechanism offers the advantages of two of the most popular dynamic scheduling mechanisms: Tomasulo's algorithm and the Dispatch Stack scheme...

Kumar, Salil

1994-01-01T23:59:59.000Z

431

Mechanical Properties of Aerogels. Final Report  

SciTech Connect (OSTI)

Aerogels are extremely low density solids that are characterized by a high porosity and pore sizes on the order of nanometers. Their low thermal conductivity and sometimes transparent appearance make them desirable for applications such as insulation in cryogenic vessels and between double paned glass in solar architecture. An understanding of the mechanical properties of aerogels is necessary before aerogels can be used in load bearing applications. In the present study, the mechanical behavior of various types of fiber-reinforced silica aerogels was investigated with hardness, compression, tension and shear tests. Particular attention was paid to the effects of processing parameters, testing conditions, storage environment, and age on the aerogels` mechanical response. The results indicate that the addition of fibers to the aerogel matrix generally resulted in softer, weaker materials with smaller elastic moduli. Furthermore, the testing environment significantly affected compression results. Tests in ethanol show an appreciable amount of scatter, and are not consistent with results for tests in air. In fact, the compression specimens appeared to crack and begin to dissolve upon exposure to the ethanol solution. This is consistent with the inherent hydrophobic nature of these aerogels. In addition, the aging process affected the aerogels` mechanical behavior by increasing their compressive strength and elastic moduli while decreasing their strain at fracture. However, desiccation of the specimens did not appreciably affect the mechanical properties, even though it reduced the aerogel density by removing trapped moisture. Finally, tension and shear test results indicate that the shear strength of the aerogels exceeds the tensile strength. This is consistent with the response of brittle materials. Future work should concentrate on mechanical testing at cryogenic temperatures, and should involve more extensive tensile tests.

Parmenter, K.E.; Milstein, F.

1995-01-01T23:59:59.000Z

432

Remote controlled vacuum joint closure mechanism  

DOE Patents [OSTI]

A remotely operable and maintainable vacuum joint closure mechanism for a noncircular aperture is disclosed. The closure mechanism includes an extendible bellows coupled at one end to a noncircular duct and at its other end to a flange assembly having sealed grooves for establishing a high vacuum seal with the abutting surface of a facing flange which includes an aperture forming part of the system to be evacuated. A plurality of generally linear arrangements of pivotally coupled linkages and piston combinations are mounted around the outer surface of the duct and aligned along the length thereof. Each of the piston/linkage assemblies is adapted to engage the flange assembly by means of a respective piston and is further coupled to a remote controlled piston drive shaft to permit each of the linkages positioned on a respective flat outer surface of the duct to simultaneously and uniformly displace a corresponding piston and the flange assembly with which it is in contact along the length of the duct in extending the bellows to provide a high vacuum seal between the movable flange and the facing flange. A plurality of latch mechanisms are also pivotally mounted on the outside of the duct. A first end of each of the latch mechanisms is coupled to a remotely controlled latch control shaft for displacing the latch mechanism about its pivot point. In response to the pivoting displacement of the latch mechanism, a second end thereof is displaced so as to securely engage the facing flange and maintain the high vacuum seal established by the displacement of the flange assembly and extension of the bellows without displacing the entire duct.

Doll, D.W.; Hager, E.R.

1984-02-22T23:59:59.000Z

433

A Review of Student Difficulties in Upper-Level Quantum Mechanics  

E-Print Network [OSTI]

Learning advanced physics, in general, is challenging not only due to the increased mathematical sophistication but also because one must continue to build on all of the prior knowledge acquired at the introductory and intermediate levels. In addition, learning quantum mechanics can be especially challenging because the paradigms of classical mechanics and quantum mechanics are very different. Here, we review research on student reasoning difficulties in learning upper-level quantum mechanics and research on students' problem-solving and metacognitive skills in these courses. Some of these studies were multi-university investigations. The investigations suggest that there is large diversity in student performance in upper-level quantum mechanics regardless of the university, textbook, or instructor and many students in these courses have not acquired a functional understanding of the fundamental concepts. The nature of reasoning difficulties in learning quantum mechanics is analogous to reasoning difficulties...

Singh, Chandralekha

2015-01-01T23:59:59.000Z

434

Mechanical Properties of Ingot Nb Cavities  

SciTech Connect (OSTI)

This contribution presents the results of measurements of the resonant frequency and of strain along the contour of a single-cell cavity made of ingot Nb subjected to increasing uniform differential pressure, up to 6 atm. The data were used to infer mechanical properties of this material after cavity fabrication, by comparison with the results from simulation calculations done with ANSYS. The objective is to provide useful information about the mechanical properties of ingot Nb cavities which can be used in the design phase of SRF cavities intended to be built with this material.

Ciovati, Gianluigi; Dhakal, Pashupati; Kneisel, Peter; Mammosser, John; Matalevich, Joseph; Rao Myneni, Ganapati

2014-07-01T23:59:59.000Z

435

The Super-Higgs Mechanism in Fluids  

E-Print Network [OSTI]

Supersymmetry is spontaneously broken when the field theory stress-energy tensor has a non-zero vacuum expectation value. In local supersymmetric field theories the massless gravitino and goldstino combine via the super-Higgs mechanism to a massive gravitino. We study this mechanism in four-dimensional fluids, where the vacuum expectation value of the stress-energy tensor breaks spontaneously both supersymmetry and Lorentz symmetry. We consider both constant as well as space-time dependent ideal fluids. We derive a formula for the gravitino mass in terms of the fluid velocity, energy density and pressure. We discuss some of the phenomenological implications.

Karim Benakli; Yaron Oz; Giuseppe Policastro

2013-10-18T23:59:59.000Z

436

General noncommuting curvilinear coordinates and fluid Mechanics  

E-Print Network [OSTI]

We show that restricting the states of a charged particle to the lowest Landau level introduces noncommutativity between general curvilinear coordinate operators. The cartesian, circular cylindrical and spherical polar coordinates are three special cases of our quite general method. The connection between U(1) gauge fields defined on a general noncommuting curvilinear coordinates and fluid mechanics is explained. We also recognize the Seiberg-Witten map from general noncommuting to commuting variables as the quantum correspondence of the Lagrange to Euler map in fluid mechanics.

S. A. Alavi

2006-08-16T23:59:59.000Z

437

Hamilton relativity group for noninertial states in quantum mechanics  

E-Print Network [OSTI]

Physical states in quantum mechanics are rays in a Hilbert space. Projective representations of a relativity group transform between the quantum physical states that are in the admissible class. The physical observables of position, time, energy and momentum are the Hermitian representation of the Weyl-Heisenberg algebra. We show that there is a consistency condition that requires the relativity group to be a subgroup of the group of automorphisms of the Weyl-Heisenberg algebra. This, together with the requirement of the invariance of classical time, results in the inhomogeneous Hamilton group that is the relativity group for noninertial frames in classical Hamilton's mechanics. The projective representation of a group is equivalent to unitary representations of its central extension. The central extension of the inhomogeneous Hamilton group and its corresponding Casimir invariants are computed. One of the Casimir invariants is a generalized spin that is invariant for noninertial states. It is the familiar inertial Galilean spin with additional terms that may be compared to noninertial experimental results.

Stephen G. Low

2007-10-18T23:59:59.000Z

438

Erwin Schroedinger and the rise of Wave mechanics. II. The creation of wave mechanics  

SciTech Connect (OSTI)

This article (Part II) deals with the creation of the theory of wave mechanics by Erwin Schroedinger in Zurich during the early months of 1926; he laid the foundations of this theory in his first two communications to Annalen der Physik. The background of Schroedinger's work on, and his actual creation of, wave mechanics are analyzed.

Mehra, J.

1987-12-01T23:59:59.000Z

439

Epoxy Nanocomposites with Highly Exfoliated Clay: Mechanical Properties and Fracture Mechanisms  

E-Print Network [OSTI]

Epoxy Nanocomposites with Highly Exfoliated Clay: Mechanical Properties and Fracture Mechanisms Ke; Revised Manuscript Received November 9, 2004 ABSTRACT: Epoxy/clay nanocomposites with a better exfoliated and transmission electron microscopy (TEM). It was found that clay was highly exfoliated and uniformly dispersed

George, Steven C.

440

Damage mechanisms in PBT-GF30 under thermo-mechanical cyclic loading  

SciTech Connect (OSTI)

The scope of this paper is the investigation of damage mechanisms at microscopic scale on a short glass fiber reinforced polybutylene terephthalate (PBT-GF30) under thermo-mechanical cyclic loading. In addition the principal mechanisms are verified through micro mechanical FE models. In order to investigate the fatigue behavior of the material both isothermal strain controlled fatigue (ISCF) tests at three different temperatures and thermo-mechanical fatigue (TMF) tests were conducted on plain and notched specimens, manufactured by injection molding. The goal of the work is to determine the damage mechanisms occurring under TMF conditions and to compare them with the mechanisms occurring under ISCF. For this reason fracture surfaces of TMF and ISCF samples loaded at different temperature levels were analyzed using scanning electron microscopy. Furthermore, specimens that failed under TMF were examined on microsections revealing insight into both crack initiation and crack propagation. The findings of this investigation give valuable information about the main damage mechanisms of PBT-GF30 under TMF loading and serve as basis for the development of a TMF life estimation methodology.

Schaaf, A., E-mail: alexander.schaaf@de.bosch.com; De Monte, M., E-mail: alexander.schaaf@de.bosch.com; Hoffmann, C., E-mail: alexander.schaaf@de.bosch.com [Robert Bosch GmbH, Corporate Sector Research and Advance Engineering - Advance Production Technology 1 - Plastics Engineering (CR/APP), Postbox 1131, 71301 Waiblingen (Germany); Vormwald, M., E-mail: vormwald@wm.tu-darmstadt.de [Department of Material Science, Darmstadt University of Technology (Germany); Quaresimin, M., E-mail: marino.quaresimin@unipd.it [Department of Management and Engineering, University of Padova (Italy)

2014-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Mechanics of Contact and Lubrication, MTM G230 Department of Mechanical & Industrial Enineering  

E-Print Network [OSTI]

is a fiber reinforced polymer. Due to its light weight and strength, it is used in many applications, fromMechanics of Contact and Lubrication, MTM G230 Department of Mechanical & Industrial Enineering on the same machine in the same environmental conditions for comparison. The machine to be used is the Umax

M眉ft眉, Sinan

442

Promotion of Hydrogen Release from Ammonia Borane with Mechanically...  

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

Promotion of Hydrogen Release from Ammonia Borane with Mechanically Activated Hexagonal Boron Nitride. Promotion of Hydrogen Release from Ammonia Borane with Mechanically Activated...

443

Contingency in the Direction and Mechanics of Soil Organic Matter...  

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

Contingency in the Direction and Mechanics of Soil Organic Matter Responses to Increased Rainfall. Contingency in the Direction and Mechanics of Soil Organic Matter Responses to...

444

The Mechanisms of Oxygen Reduction and Evolution Reactions in...  

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

The Mechanisms of Oxygen Reduction and Evolution Reactions in Nonaqueous Lithium-Oxygen Batteries. The Mechanisms of Oxygen Reduction and Evolution Reactions in Nonaqueous...

445

Electro-thermal-mechanical Simulation and Reliability for Plug...  

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

More Documents & Publications Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle Converters and Inverters Electro-thermal-mechanical Simulation...

446

Microstructure Based Modeling of ? Phase Influence on Mechanical...  

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

Based Modeling of ? Phase Influence on Mechanical Response of Cast AM Series Mg Alloys. Microstructure Based Modeling of ? Phase Influence on Mechanical Response of Cast...

447

Attractive Noncovalent Interactions inthe Mechanism ofGrubbsSecond...  

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

Attractive Noncovalent Interactions inthe Mechanism of GrubbsSecond-Generation Ru Catalysts forOlefin Metathesis. Attractive Noncovalent Interactions inthe Mechanism of...

448

Public Finance Mechanisms to Mobilize Investment in Climate Change...  

Open Energy Info (EERE)

Mechanisms to Mobilize Investment in Climate Change Mitigation Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Public Finance Mechanisms to Mobilize Investment in...

449

Probing the Degradation Mechanisms in Electrolyte Solutions for...  

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

Degradation Mechanisms in Electrolyte Solutions for Li-ion Batteries by In-Situ Transmission Electron Microscopy. Probing the Degradation Mechanisms in Electrolyte Solutions for...

450

Project Profile: Degradation Mechanisms for Thermal Energy Storage...  

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

Degradation Mechanisms for Thermal Energy Storage and Heat Transfer Fluid Containment Materials Project Profile: Degradation Mechanisms for Thermal Energy Storage and Heat Transfer...

451

The Impact of Oil Consumption Mechanisms on Diesel Exhaust Particle...  

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

Oil Consumption Mechanisms on Diesel Exhaust Particle Size Distributions and Detailed Exhaust Chemical Composition The Impact of Oil Consumption Mechanisms on Diesel Exhaust...

452

adaptive mechanisms regulate: Topics by E-print Network  

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

Alexandra I. Cristea 265 Statistical Mechanics: A Possible Model for Market-based Electric Power Control CiteSeer Summary: Statistical mechanics provides a useful analog for...

453

Transition Path Sampling of Water Exchange Rates and Mechanisms...  

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

Path Sampling of Water Exchange Rates and Mechanisms around Aqueous Ions . Transition Path Sampling of Water Exchange Rates and Mechanisms around Aqueous Ions . Abstract: The rates...

454

Energy Savings Through Improved Mechanical Systems and Building...  

Office of Environmental Management (EM)

Energy Savings Through Improved Mechanical Systems and Building Envelope Technologies (DE-FOA-0000621) Energy Savings Through Improved Mechanical Systems and Building Envelope...

455

In-situ characterization and diagnostics of mechanical degradation...  

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

In-situ characterization and diagnostics of mechanical degradation in electrodes In-situ characterization and diagnostics of mechanical degradation in electrodes 2011 DOE Hydrogen...

456

Coupled Kinetic, Thermal, and Mechanical Modeling of FIB Micro...  

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

Coupled Kinetic, Thermal, and Mechanical Modeling of FIB Micro-machined Electrodes Coupled Kinetic, Thermal, and Mechanical Modeling of FIB Micro-machined Electrodes 2010 DOE...

457

A Survey of Process Migration Mechanisms Jonathan M. Smith  

E-Print Network [OSTI]

A Survey of Process Migration Mechanisms Jonathan M. Smith Computer Science Department Columbia Migration Mechanisms Jonathan M. Smith Computer Science Department Columbia University New York, NY 10027

Smith, Jonathan M.

458

Coupled Thermal-Hydrological-Mechanical-Chemical Model and Experiments...  

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

Coupled Thermal-Hydrological-Mechanical-Chemical Model and Experiments for Optimization of Enhanced Geothermal System Development and Production Coupled Thermal-Hydrological-Mechan...

459

Development and Validation of a Reduced Mechanism for Biodiesel...  

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

Validation of a Reduced Mechanism for Biodiesel Surrogates for Compression Ignition Engine Applications Development and Validation of a Reduced Mechanism for Biodiesel Surrogates...

460

Deactivation Mechanisms of Base Metal/Zeolite Urea Selective...  

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

peden16807.pdf More Documents & Publications Understanding the Deactivation Mechanisms of CuZeolite SCR Catalysts in Diesel Application Deactivation Mechanisms of Base Metal...

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Chelation: A Fundamental Mechanism of Action of AGE Inhibitors...  

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

Mechanism of Action of AGE Inhibitors, AGE Breakers, and Other Inhibitors of Diabetes Complications. Chelation: A Fundamental Mechanism of Action of AGE Inhibitors, AGE...

462

Decoupling: Mechanics and Issues, Presentation to the New Mexico...  

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

Decoupling: Mechanics and Issues, Presentation to the New Mexico Public Regulation Commission Energy Efficiency Incentives Workshop Decoupling: Mechanics and Issues, Presentation...

463

Quantum mechanics of the free Dirac electrons and Einstein photons, and the Cauchy process  

E-Print Network [OSTI]

Fundamental solutions for the free Dirac electron and Einstein photon equations in position coordinates are constructed as matrix valued functionals on the space of bump functions. It is shown that these fundamental solutions are related by a unitary transform via the Cauchy distribution in imaginary time. We study the way the classical relativistic mechanics of the free particle comes from the quantum mechanics of the free Dirac electron.

A. A. Beilinson

2014-12-03T23:59:59.000Z

464

Wave Mechanics and the Fifth Dimension  

E-Print Network [OSTI]

Replacing 4D Minkowski space by 5D canonical space leads to a clearer derivation of the main features of wave mechanics, including the wave function and the velocity of de Broglie waves. Recent tests of wave-particle duality could be adapted to investigate whether de Broglie waves are basically 4D or 5D in nature.

Paul S. Wesson; James M. Overduin

2013-01-28T23:59:59.000Z

465

Department of Mechanical Engineering Spring 2013  

E-Print Network [OSTI]

Device - Global Overview Tyco Fire Protection Products produces an air maintenance device (AMD-1) for dryPENNSTATE Department of Mechanical Engineering Spring 2013 Design of a Competitive Air Maintenance products and established team goals to be competitive with these products Generated multiple concepts

Demirel, Melik C.

466

Energy Impacts of Envelope Tightening and Mechanical  

E-Print Network [OSTI]

1 Energy Impacts of Envelope Tightening and Mechanical Ventilation for the U.S. Residential Sector Energy Commission through Contract 500-08-061. #12;3 ABSTRACT Effective residential envelope air sealing reduces infiltration and associated energy costs for thermal conditioning, yet often creates a need

467

The mechanics of soft biological composites.  

SciTech Connect (OSTI)

Biological tissues are uniquely structured materials with technologically appealing properties. Soft tissues such as skin, are constructed from a composite of strong fibrils and fluid-like matrix components. This was the first coordinated experimental/modeling project at Sandia or in the open literature to consider the mechanics of micromechanically-based anisotropy and viscoelasticity of soft biological tissues. We have exploited and applied Sandia's expertise in experimentation and mechanics modeling to better elucidate the behavior of collagen fibril-reinforced soft tissues. The purpose of this project was to provide a detailed understanding of the deformation of ocular tissues, specifically the highly structured skin-like tissue in the cornea. This discovery improved our knowledge of soft/complex materials testing and modeling. It also provided insight into the way that cornea tissue is bio-engineered such that under physiologically-relevant conditions it has a unique set of properties which enhance functionality. These results also provide insight into how non-physiologic loading conditions, such as corrective surgeries, may push the cornea outside of its natural design window, resulting in unexpected non-linear responses. Furthermore, this project created a clearer understanding of the mechanics of soft tissues that could lead to bio-inspired materials, such as highly supple and impact resistant body armor, and improve our design of human-machine interfaces, such as micro-electrical-mechanical (MEMS) based prosthetics.

Nguyen, Thao D. (Sandia National Laboratories, Livermore, CA); Grazier, John Mark; Boyce, Brad Lee; Jones, Reese E. (Sandia National Laboratories, Livermore, CA)

2007-10-01T23:59:59.000Z

468

Department of Mechanical & Nuclear Engineering PENNPENNSSTATETATE  

E-Print Network [OSTI]

Department of Mechanical & Nuclear Engineering PENNPENNSSTATETATE Introduction to Micro://www.onera.fr/conferences/micropropulsion/ For "Power MEMS" devices, typically in applications where batteries are currently used. - high power density For "Power MEMS" devices, typically in applications where batteries are currently used. - high power density

Yang, Vigor

469

Fifth World Congress on Computational Mechanics  

E-Print Network [OSTI]

Application to Product-Embedded Disassembly Ying Li, Kazuhiro Saitou and Noboru Kikuchi Department of Mechanical Engineering, University of Michigan Ann Arbor, Michigan 48109-2125, USA e-mail: yingli is further verified with commercial FEA software. #12;Ying Li, Kazuhiro Saitou, Noboru Kikuchi 2 1

Saitou, Kazuhiro "Kazu"

470

Air Distribution Effectiveness for Different Mechanical Ventilation  

E-Print Network [OSTI]

LBNL-62700 Air Distribution Effectiveness for Different Mechanical Ventilation Systems Max H Orlando Lawrence Berkeley National Laboratory is an equal opportunity employer. #12;1 Air Distribution depending on the effectiveness of their air distribution systems and the location of sources and occupants

471

Acrolein-Mediated Mechanisms of Neuronal Death  

E-Print Network [OSTI]

Acrolein-Mediated Mechanisms of Neuronal Death Peishan Liu-Snyder,1 Helen McNally,1 Riyi Shi,1 stress lead to breakdown of membrane lipids (lipid peroxidation) during secondary injury. Acrolein certain fea- tures of cell death induced by acrolein on PC12 cells as well as cells from dorsal root

Shi, Riyi

472

6. Fluid mechanics: fluid statics; fluid dynamics  

E-Print Network [OSTI]

1/96 6. Fluid mechanics: fluid statics; fluid dynamics (internal flows, external flows) Ron and Flow Engineering | 20500 Turku | Finland 2/96 6.1 Fluid statics ?bo Akademi University | Thermal and Flow Engineering | 20500 Turku | Finland #12;3/96 Fluid statics, static pressure /1 Two types

Zevenhoven, Ron

473

Wind Turbines Electrical and Mechanical Engineering  

E-Print Network [OSTI]

Wind Turbines Electrical and Mechanical Engineering Objective 路 Introduce students to the concept of alternative energy. 路 Explain the math and scientific principles behind engineering wind turbines. Standards and how it applies to wind energy 路 About how surface area and shape effects wind turbine efficiency

Provancher, William

474

THERMO-HYDRO-MECHANICAL SIMULATION OF GEOTHERMAL  

E-Print Network [OSTI]

THERMO-HYDRO-MECHANICAL SIMULATION OF GEOTHERMAL RESERVOIR STIMULATIONRESERVOIR STIMULATION Silvia Seminario del Grupo de Hidrolog矛a Subterr脿nea - UPC, Barcelona #12;INTRODUCTION Enhanced geothermal systems Geothermal gradient ~ 33 掳C/Km Hydraulic stimulation enhances fracture permeability (energy

Polit猫cnica de Catalunya, Universitat

475

R. A. Wirtz Mechanical Engineering Department,  

E-Print Network [OSTI]

89557 A Hybrid Thermal Energy Storage Device, Part 2: Thermal Performance Figures of Merit Two figures of merit for hybrid Thermal Energy Storage (TES) units are developed: the volumetric figure of merit, V be designed for peak power operation. Incorporation of a Thermal Energy Storage TES mechanism into the module

Wirtz, Richard A.

476

Stochastic mechanism of color confinement V. Kuvshinov  

E-Print Network [OSTI]

Stochastic mechanism of color confinement V. Kuvshinov Joint Institute for Power and Nuclear, for example inside a hadron or deconfined QGP. QCD vacuum is the environment for color quantum particles whose into the pieces transformed under trivial and adjoint representations [4]. As is known due to Casimir scaling

Heller, Barbara

477

A. Kornilov Department of Mechanical Engineering,  

E-Print Network [OSTI]

transformation into a surface microcrack. The results of thermal stresses analysis are in an agreement is important to the electronic industry. Since chips often operate at a high power level Bar-Cohen 1 , Suhir 2 critical size propagate inside the wafer and result in mechanical failure of an electronic assembly. Thus

Elperin, Tov

478

Hamilton-Jacobi Fractional Sequential Mechanics  

E-Print Network [OSTI]

As a continuation of Rabei et al. work [11], the Hamilton- Jacobi partial differential equation is generalized to be applicable for systems containing fractional derivatives. The Hamilton- Jacobi function in configuration space is obtained in a similar manner to the usual mechanics. Two problems are considered to demonstrate the application of the formalism. The result found to be in exact agreement with Agrawal's formalism.

Eqab M. Rabei; Bashar S. Ababneh

2007-04-04T23:59:59.000Z

479

Department of Mechanical Engineering 2014 Seminar Series  

E-Print Network [OSTI]

Professor Mechanical Engineering Texas A&M University, Corpus Christi Thermal-fluids and Energy Conversion such as solar energy harvesting and enhanced energy transfer device development. Firstly, a label. Secondly, surface plasmon resonance technology is applied into energy conversion such as solar energy

Shapiro, Benjamin

480

Microfluidic Cell Electroporation Using a Mechanical Valve  

E-Print Network [OSTI]

Microfluidic Cell Electroporation Using a Mechanical Valve Jun Wang, M. Jane Stine, and Chang Lu Center, and Bindley Bioscience Center, Purdue University, West Lafayette, Indiana 47907 A microfluidic of integrating electroporation as a unit operation in large- scale microfluidic systems with the increasing

Lu, Chang

Note: This page contains sample records for the topic "mechanics classical mechanics" 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

Physical Clearing Mechanisms in Power Karla Atkins  

E-Print Network [OSTI]

of energy sector and its impact on generation of electricity, market power, market efficiency, consumption, developed at the Los Alamos National Lab- oratory. Two cities, Portland and Chicago, are used for simulating cities perform very similarly under the different physical clearing mechanisms. I. INTRODUCTION

Marathe, Achla

482

JOURNAL OF THEORETICAL AND APPLIED MECHANICS  

E-Print Network [OSTI]

of this mechanism can been seen as new generation percussive drilling tools. Key words: vibration, energy transfer for Marine and Petroleum Technology entitled 'Enhanced Resonance Drilling' (Wiercigroch, 1999), which TRANSFER VIA MODULATED IMPACTS FOR PERCUSSIVE DRILLING Marian Wiercigroch University of Aberdeen, Centre

Krivtsov, Anton M.

483

Guosong Lin Department of Mechanical Engineering,  

E-Print Network [OSTI]

Arbor, MI 48109 Wayne Cai Manufacturing Systems Research Laboratory, General Motors R&D Center, WarrenGuosong Lin Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109 e-mail: guosongl@umich.edu Jing Li Department of Industrial and Operations Engineering, The University of Michigan

Li, Jing

484

MECHANICAL BEHAVIOUR OF PVC: MODEL EVALUATION  

E-Print Network [OSTI]

MECHANICAL BEHAVIOUR OF PVC: MODEL EVALUATION BY DMYTRO MIROSHNYCHENKO A MASTER'S THESIS SUBMITTED in the prediction of the Treloar data . . . 60 3 The yield stress of oriented PVC and its prediction 66 3 of oriented PVC . . . . . . 69 3.4 Prediction of the yield stress of oriented PVC . . . . . . . . . . . . . 73

Miroshnychenko, Dmitri

485

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network [OSTI]

Graduate courses 5. Research activities 5. 1 Doctoral theses defended 2008 5. 2 Licentiate theses presented doctoral theses and presentations of five licentiate theses during 2008. The publication list their Licentiate theses. The department also, together with the Department of Solid Mechanics, serves as host

Haviland, David

486

KTH Mechanics SE-100 44 Stockholm, Sweden  

E-Print Network [OSTI]

Graduate courses 5. Research activities 5. 1 Doctoral theses defended 5. 2 Licentiate theses presented 5. 3 activity of the department resulted in the defences of 7 doctoral theses and presentations of 6 licentiate their Licentiate theses. The department also, together with the Department of Solid Mechanics and the Marcus

Haviland, David

487

MECHANICAL & INDUSTRIAL ENGINEERING COLLOQUIUM: ME 794  

E-Print Network [OSTI]

MEC Particle transport along and across the streamlines in microfluidic devices Dr. Shahab Shojaei-Zadeh Mechanical and Aerospace Engineering Rutgers University, New Jersey Flow in microfluidic devices are usually regarded based on the consideration of Stokes flow condition. Inertial microfluidics, however, has recently

Bieber, Michael

488

Doctoral Defense "Thermal-hydro-mechanical model  

E-Print Network [OSTI]

Doctoral Defense "Thermal-hydro-mechanical model for freezing and thawing soils" Yao Zhang Date & Environmental Engineering Frost susceptible soils are vulnerable to frost action in seasonal freezing as well and strengthening occurs as the soils freeze, whereas settlement and thaw weakening is expected during the melting

Kamat, Vineet R.

489

Sibley School of Mechanical and Aerospace Engineering  

E-Print Network [OSTI]

streams: Mechanical Systems and Materials Processing or Fluids, Energy, and Heat-Transfer Systems energy needs, and perform systems analysis on the human body as a means of understanding the implications that are smaller and lighter than today's available technology. MAE graduates will often go on for further study

Lipson, Michal

490

"We retrofitted mechanical systems in 8 buildings!"  

E-Print Network [OSTI]

"We retrofitted mechanical systems in 8 buildings!" LOW INTEREST RATE LOANS AVAILABLE NOW! County of Contra Costa California Energy Commission Apply Today! See Case Study on Back of Flyer "Our low interest and cooling systems in eight buildings. The energy efficient measures include replacing pneumatic controls

491

Nano-Machines Achieve Huge Mechanical Breakthrough  

E-Print Network [OSTI]

NANO TECH Nano-Machines Achieve Huge Mechanical Breakthrough Dublin, Ireland (SPX) Sep 08, 2005 that use molecular 'nano'-machines of this kind to help perform physical tasks. Nano-machines could also owners set to return to battered Orleans l Six dead, two missing after heavy rains hit Page 1 of 3Nano

Leigh, David A.

492

Mechanical Engineering Department "The Lindbergh Lectures"  

E-Print Network [OSTI]

:00 12:50 PM 1800 Engineering Hall MINIMALLY INVASIVE ROBOTIC CATHETERS: ADDRESSING CHALLENGES THROUGH MODELING, CONTROL, AND DESIGN Michael Zinn Assistant Professor, Mechanical Engineering Department, UW-Madison Abstract: In recent years, minimally-invasive surgical systems based on flexible robotic manipulators have

Wisconsin at Madison, University of

493

Optomechanical laser cooling with mechanical modulations  

E-Print Network [OSTI]

We theoretically study the laser cooling of cavity optomechanics when the mechanical resonance frequency and damping depend on time. In the regime of weak optomechanical coupling we extend the theory of laser cooling using an adiabatic approximation. We discuss the modifications of the cooling dynamics and compare it with numerical simulations in a wide range of modulation frequencies.

Marc Bienert; Pablo Barberis-Blostein

2014-12-15T23:59:59.000Z

494

2 mechanical engineering | November 2008 Integrating social,  

E-Print Network [OSTI]

2 mechanical engineering | November 2008 market systems design for Integrating social, economic in the context of market systems. By integrating quantitative engineering and economic models, the ability, and physical sciences to engineer product success. By Jeremy J. Michalek roduct success depends on successful

Michalek, Jeremy J.

495

Mechanics of cycling J.-P. Mariot  

E-Print Network [OSTI]

as well. The movement is studied when an average constant torque is applied on the rear wheel. For a 72 kg, that mechanical losses due to the ball bearings are now negligible considering the excellence of modern products. The invention of the bicycle is probably as impor- tant as that of the wheel (a little over 5 000 years ago

Paris-Sud XI, Universit茅 de

496

MECHANICAL ENGINEERING GRADUATE PROGRAM Listing of Faculty  

E-Print Network [OSTI]

(519) 253-3000 ext. 3886 asobies@uwindsor.ca Research Areas: Internal Combustion Engines, Alternate Fluid Mechanics; Heat Transfer; Combustion; Fuel Cell; Internal Combustion Engine; Environmental Issues; Combustion; Alternative Fuel Engines; Thermal/Fluid Systems; IC Engine Modeling, Emission Measurements #12;

497

Complex Dynamics of Nano-Mechanical Membrane in Cavity Optomechanics  

E-Print Network [OSTI]

Theoretical analysis of a suspended nano-mechanical membrane subject to an optical driving field in cavity optomechanics is presented, which is confirmed through numerical simulations. In the presence of an optical field between its mirrors a high finesse nano-mechanical resonator acts as an oscillator driven by radiation pressure force. The periodic nature of the radiation pressure force makes the nano-mechanical membrane in the optomechanical system as kicked harmonic oscillator. Mathematically the physical system displays a stochastic web map that helps to understand several properties of the kicked membrane in classical phase space. We find that our web map is area preserving, and displays quasi-periodic symmetrical structures in phase space which we express as q-fold symmetry. It is shown that under appropriate control of certain parameters, namely the frequency ratio (q) and the kicking strength (K), the dynamics of kicked membrane exhibits chaotic dynamics. We provide the stability analysis by means of Lyapunov exponent and survival probability.

Muhammad Javed Akram; Farhan Saif

2014-11-03T23:59:59.000Z

498

Observation of non-Markovian micro-mechanical Brownian motion  

E-Print Network [OSTI]

At the heart of understanding the emergence of a classical world from quantum theory is the insight that all macroscopic quantum systems are to some extent coupled to an environment and hence are open systems. The associated loss of quantum coherence, i.e., decoherence, is also detrimental for quantum information processing applications. In contrast, properly engineered quantum noise can counteract decoherence and can even be used in robust quantum state generation. To exploit the detailed dynamics of a quantum system it is therefore crucial to obtain both good knowledge and control over its environment. Here we present a method to reconstruct the relevant properties of the environment, that is, its spectral density, of the center of mass motion of a micro-mechanical oscillator. We observe a clear signature of non-Markovian Brownian motion, which is in contrast to the current paradigm to treat the thermal environment of mechanical quantum resonators as fully Markovian. The presented method, inspired by methods of system identification, can easily be transferred to other harmonic systems that are embedded in a complex environment, for example electronic or nuclear spin states in a solid state matrix. Our results also open up a route for mechanical quantum state engineering via coupling to unorthodox reservoirs.

S. Groeblacher; A. Trubarov; N. Prigge; M. Aspelmeyer; J. Eisert

2014-07-16T23:59:59.000Z

499

Highlighting the mechanism of the quantum speedup by time-symmetric and relational quantum mechanics  

E-Print Network [OSTI]

Bob hides a ball in one of four drawers. Alice is to locate it. Classically she has to open up to three drawers, quantally just one. The fundamental reason for this quantum speedup is not known. We explain it by extending the usual representation of the quantum algorithm, limited to the process of solving the problem, to the process of setting the problem. The number of the drawer with the ball becomes a unitary transformation of the random outcome of the preparation measurement. This brings in relational quantum mechanics: the extension is with respect to Bob and cannot be with respect to Alice. It would tell her the drawer number before she opens any drawer. To Alice, the projection of the quantum state due to the preparation measurement should be retarded at the end of her search; in the input state of the search, the drawer number is determined to Bob and undetermined to Alice. A second consequence is the emergence of an ambiguity. Either the preparation measurement or the final one required to read the solution selects the solution. For reasons of symmetry, we assume that the selection shares evenly between the two measurements. All is as if Alice, by reading the solution, selected half of the information that specifies the drawer number. This selection leaves the input state to Bob unaltered and projects that to Alice on a state of lower entropy where she knows that half in advance. The quantum algorithm is a sum over histories in each of which Alice knows in advance that the ball is in a pair of drawers and locates it by opening one of the two. More in general, given an oracle problem, this explanation of the speedup predicts the number of queries required to solve it in an optimal quantum way.

Giuseppe Castagnoli

2014-12-11T23:59:59.000Z

500

Entanglement in Classical Optics  

E-Print Network [OSTI]

The emerging field of entanglement or nonseparability in classical optics is reviewed, and its similarities with and differences from quantum entanglement clearly pointed out through a recapitulation of Hilbert spaces in general, the special restrictions on Hilbert spaces imposed in quantum mechanics and the role of Hilbert spaces in classical polarization optics. The production of Bell-like states in classical polarization optics is discussed, and new theorems are proved to discriminate between separable and nonseparable states in classical wave optics where no discreteness is involved. The influence of the Pancharatnam phase on a classical Bell-like state is deived. Finally, to what extent classical polarization optics can be used to simulate quantum information processing tasks is also discussed. This should be of great practical importance because coherence and entanglement are robust in classical optics but not in quantum systems.

Partha Ghose; Anirban Mukherjee

2013-09-12T23:59:59.000Z