Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Motion example

Both problems cannot be solved in a straightforward manner. Mathematical treatments can be ill-conditioned because of the large number of independent variables and noise. Approximations were often made in order to simplify the equation of motion. Examples of strategies of reconstruction are given in Ref. 28 and are briefly described below, in a decreasing order of approximations ... [Pg.223]

There are two types of radiation ionizing and nonionizing. Ionizing radiation involves particles and waves of energy traveling in a wave-like motion. Examples... [Pg.338]

Mechanism Bound motion Examples (redox center/polymer) Dapp(10- " cm s )... [Pg.607]

Note that this must be interpreted in general as a set of H = 3N equations, one for each atomic coordinate.) The real usefulness of the Lagrangian perspective comes when we introduce different types of coordinates to express the equations of motion examples of this are given below. [Pg.24]

A variety of traffic problems can occur for vehicles in motion. Examples are blind corners and vehicles moving in different directions. When pulling a load, an operator may slip or fall. An operator s foot may slide under the vehicle. In addition, the momentum of the vehicle and load may cause the vehicle to run over the operator. When pushing a load, an operator may have difficulty seeing obstructions or maneuvering the load accurately. However, when pushing a load, the vehicle is not likely to run over the operator if there is a slip or fall. [Pg.202]

Electroactive polymers are expected to organize muscular hydrostats systems, in which the muscle provides both the mechanical support for position control as well as the force for motion. Examples are arms for locomotion (octopus), fins for swimming (cuttlefish) and limbs for manipulation (trimks of elephants, tentacles of squid, arms of cuttlefish, and the tongues of frogs) [186], For the purpose of designing such robots, material properties were examined. The point was the scale effect of its softness. Different from solid materials, soft materials amplify... [Pg.72]

A mass flowmeter based on the Coriolis force principle has been developed by Micro Motion. Example 7-3 describes some of its details. [Pg.163]

Seismic hazard analysis can be performed using two approaches, namely, deterministic seismic hazard analysis (DSHA) and probabilistic seismic hazard analysis (PSHA). Both use similar information to determine the design earthquake, while other hazard levels can also be established. Basic elements of deterministic analysis are also included in the probabilistic approach. The main difference is that the probabilistic approach takes into account the uncertainties and the likelihood of an actual earthquake exceeding the design ground motion. Examples of the outcome of the two approaches are as follows (FEMA-451B 2003) ... [Pg.821]

Energy, kinetic The energy available due to motion. Example High speed ion. [Pg.608]

Fatigue, static Fatigue due to a continuously applied stress with no motion. Example ... [Pg.613]

E. J. Heller, E. B. Stechel, and M. J. Davis, Molecular spectra, Fermi resonances, and classical motion Example of CO2, J. Chem. Phys. 71 4759 (1979). [Pg.31]

Classically, the nuclei vibrate in die potential V(R), much like two steel balls coimected by a spring which is stretched or compressed and then allowed to vibrate freely. This vibration along the nuclear coordinated is our first example of internal molecular motion. Most of the rest of this section is concerned with different aspects of molecular vibrations in increasingly complicated sittiations. [Pg.56]

In general, each nomial mode in a molecule has its own frequency, which is detemiined in the nonnal mode analysis [24]- Flowever, this is subject to the constraints imposed by molecular synmietry [18, 25, 26]. For example, in the methane molecule CFI, four of the nonnal modes can essentially be designated as nonnal stretch modes, i.e. consisting primarily of collective motions built from the four C-FI bond displacements. The molecule has tetrahedral synmietry, and this constrains the stretch nonnal mode frequencies. One mode is the totally symmetric stretch, with its own characteristic frequency. The other tliree stretch nonnal modes are all constrained by synmietry to have the same frequency, and are refened to as being triply-degenerate. [Pg.60]

In the example of the previous section, the release of the stop always leads to the motion of the piston in one direction, to a final state in which the pressures are equal, never in the other direction. This obvious experimental observation turns out to be related to a mathematical problem, the integrability of differentials in themiodynamics. The differential Dq, even is inexact, but in mathematics many such expressions can be converted into exact differentials with the aid of an integrating factor. [Pg.333]

In the example of pressure-volume work in die previous section, the adiabatic reversible process consisted simply of the sufficiently slow motion of an adiabatic wall as a result of an infinitesimal pressure difference. The work done on the system during an infinitesimal reversible change in volume is then -pdVand one can write equation (A2.1.11) in the fomi... [Pg.333]

In an ideal molecular gas, each molecule typically has translational, rotational and vibrational degrees of freedom. The example of one free particle in a box is appropriate for the translational motion. The next example of oscillators can be used for the vibrational motion of molecules. [Pg.381]

Fluctuations of observables from their average values, unless the observables are constants of motion, are especially important, since they are related to the response fiinctions of the system. For example, the constant volume specific heat of a fluid is a response function related to the fluctuations in the energy of a system at constant N, V and T, where A is the number of particles in a volume V at temperature T. Similarly, fluctuations in the number density (p = N/V) of an open system at constant p, V and T, where p is the chemical potential, are related to the isothemial compressibility iCp which is another response fiinction. Temperature-dependent fluctuations characterize the dynamic equilibrium of themiodynamic systems, in contrast to the equilibrium of purely mechanical bodies in which fluctuations are absent. [Pg.437]

In the general case, (A3.2.23) caimot hold because it leads to (A3.2.24) which requires GE = (GE ) which is m general not true. Indeed, the simple example of the Brownian motion of a hannonic oscillator suffices to make the point [7,14,18]. In this case the equations of motion are [3, 7]... [Pg.699]


See other pages where Motion example is mentioned: [Pg.18]    [Pg.255]    [Pg.45]    [Pg.142]    [Pg.273]    [Pg.287]    [Pg.208]    [Pg.56]    [Pg.18]    [Pg.255]    [Pg.45]    [Pg.142]    [Pg.273]    [Pg.287]    [Pg.208]    [Pg.56]    [Pg.716]    [Pg.295]    [Pg.14]    [Pg.19]    [Pg.33]    [Pg.54]    [Pg.58]    [Pg.61]    [Pg.63]    [Pg.66]    [Pg.67]    [Pg.67]    [Pg.68]    [Pg.74]    [Pg.77]    [Pg.78]    [Pg.79]    [Pg.117]    [Pg.175]    [Pg.180]    [Pg.233]    [Pg.687]    [Pg.708]    [Pg.830]   
See also in sourсe #XX -- [ Pg.32 , Pg.33 , Pg.34 , Pg.40 ]




SEARCH



© 2024 chempedia.info