This chapter is devoted to the study of the characteristic properties of symmetric tensors of rank 2. They represent many physical properties which, in isotropic materials, are described by a simple scalar. The end of this chapter introduces axial vectors, which are antisymmetric tensors of rank...
必应词典为您提供second-rank-tensor的释义,网络释义: 二级张量;二阶张量;
This ITK module contains a filter called itk::SplitComponentsImageFilter. This filter generates component images from an itk::Image of, for example, itk::Vector, itk::CovariantVector, or itk::SymmetricSecondRankTensor. For more information, see the Insight Journal article: McCormick M. An ITK ...
A complete list of all second rank Lorentz tensors is presented, which are at most quadratic in the field strengths. These objects fulfill balance equations involving covariant derivatives. The energy momentum tensor of the field (and its continuity equation) is one of these objects. Some others...
In particular a mixed second-rank tensor and a totally symmetric third-rank tensor are associated with the meson and baryon fields, respectively. It is shown that if these fields are required to satisfy prescribed free-field equations ... B Sakita,KC Wali - 《Phys Rev》 被引量: 32发表: ...
The nonlinear susceptibility is a second-rank tensor in general, which is non-zero only at the surfaces where spatial symmetry is broken. As the outer and inner surfaces of our gold nanostructure samples have an amorphous morphology (see Method, Sample preparation), the general second-rank ...
For instance, we give the chosen intrinsic and index notations for the second gradient of a scalar field and of a second rank tensor as∇⊗∇ρ=ρ,ije̲i⊗e̲j,ε∼⊗∇⊗∇=εij,kle̲i⊗e̲j⊗e̲k⊗e̲l....
(),lr=torch.tensor(0.1))lr_scheduler=torch.optim.lr_scheduler.StepLR(optimizer,step_size=1)optimizer.step=torch.compile(optimizer.step)return[optimizer], [lr_scheduler]defmain():train_data=DataLoader(RandomDataset(32,16),batch_size=2)model=BoringModel()trainer=Trainer(max_epochs=5,enable_...
1) second rank tensor 二级张量 2) developed ore and blocked-out ore 二级矿量 3) two_stage flow 二级流量 1. In this article,on designing PRB7-200/100/25/31 emulsion pump,we adopt the design method oftwo_stage flow,which adopts stage columnar plug structure andtwo_stage flowmethod. ...
In the disordered paraelectric state the third-rank tensor NL vanishes and SHG has to be described by a tensor N of fourth rank, N is interpreted as a measure of short range order. Its temperature dependence reveals an anomaly at 207掳C, also shown by the thermal expansion coefficients.doi...