We consider a mathematical model which describes the frictional unilateral contact between a thermo-piezoelectric body and a rigid electrically conductive foundation. The thermo-piezoelectric constitutive law is assumed to be nonlinear and the contact is modeled with the Signorini condition, the nonlocal Coulomb friction law with slip dependent friction coefficient and the regularized electrica...

A mathematical model which describes an explicit time-dependent quasistatic frictional contact problem between a deformable body and a foundation is introduced and studied, in which the contact is bilateral, the friction is modeled with Tresca’s friction law with the friction bound depending on the total slip, and the behavior of the material is described with a viscoelastic constitutive law wi...

T first contact that a young juvenile offender has with the juvenile justice system is with a police officer. The nature and circumstances of this police contact are likely to be significant and have a lasting impression on a young person. In this chapter we examine police roles and responsibilities in general, and the unique roles that police have when dealing with juvenile offenders. Children...

In this paper, we study the problem of predicting the acceleration of a set of rigid, 3-dimensional bodies in contact with Coulomb friction. The nonlinearity of Coulomb's law leads to a nonlinear complementarity formulation of the system model. This model is used in conjunction with the theory of quasi-variational inequalities to prove for the rst time that multi-rigid-body systems with all con...

The current work explored law enforcement officers’ racial bias in decisions to shoot criminal suspects as well as their self-reported beliefs about Black versus White suspects. In addition, this work examined what factors contribute to officers’ racial biases and the likelihood of having these biases eliminated. Examination of the officers’ explicit attitudes toward Black people and their beli...

Abstract The authors have previously improved the principles of distribution contact normal and tangential stresses at moment destruction specimen on basis L. Prandtl’s method as applied to rocks. article presents further development for constructing out-of-limit curves “stress - longitudinal deformation” diagrams A comparative assessment proposed calculating in comparison with has been constru...

The Marangoni contraction of sessile drops of a binary mixture of a volatile and a nonvolatile liquid has been investigated experimentally and theoretically. The origin of the contraction is the locally inhomogeneous evaporation rate of sessile drops. This leads to surface tension gradients and thus to a Marangoni flow. Simulations show that the interplay of Marangoni flow, capillary flow, diff...

In chapter 2 of the Principles, the ALI proposes sweeping changes to the legal conception of parenthood. It would confer custody and visitation “rights”1 on a stepparent or ex-livein lover of a child’s legal parent2 who shared caretaking responsibility for a child for as little as two years (“Ex Live-In Partner”).3 Such an individual is recognized by the Principles as a “de facto parent,” a ter...

Holding an object and manipulating it in 6D is a key application for multifingered robot hands. In the past many algorithms were proposed based on a weighted pseudoinverse of the grasp map combined with an internal force control. The majority of these algorithms require robust contact detection/tracking and switching controllers. Employing the virtual object introduced by Stramigioli we present...