We study solar cell properties of single silicon wires connected at their ends to two dissimilar metals of different work functions. Effects of wire dimensions, the work functions of the metals, and minority carrier lifetimes on short circuit current as well as open circuit voltage are studied. The most efficient photovoltaic behavior is found to occur when one metal makes a Schottky contact wi...

Ii bas long been known that when a metal is placed in contact with a semiconductor a rectUying contact often results. This rectmcation is a result of an energy barrier between the metal and the semiconductor. Jn order to form a nonrectUying or ohmic contact, two general approaches can be applied: either (1) the barrier energy can be reduced to a low enough value that the thermally excited curre...

The upper talocalcanean join (articulatio talocruralis)1 is the join of the shin bone (tibia) and the ankle bone (talus). The tibia and the ankle bone are in contact at the facies articularis inferior tibiae2 and the facies articularis superior trochleae tali3. In order to build protheses that simulate the motion of the UTJ we study the geometry of the two surfaces FAIT and FAST, respectively. ...

We demonstrate annealed low-temperature grown ~LTG! GaAs to be a highly effective etch-stop layer while photoetching n-type normal-growth-temperature GaAs. During this process, the etch rate is controlled by the transport of photogenerated carriers to the semiconductor/electrolyte interface. Because of the very short minority carrier lifetime in LTG-GaAs, only a very small portion of photogener...

THEORY AND FUNDAMENTALS Temperature measurement can be divided into two categories: contact and noncontact. Contact thermocouples, RTDs, and thermometers are the most prevalent in temperature measurement applications. They must contact the target as they measure their own temperature and they are relatively slow responding, but they are inexpensive. Noncontact temperature sensors measure IR ene...

Character animation based on motion capture provides intrinsically plausible results, but lacks the flexibility of procedural methods. Motion editing methods partially address this limitation by adapting the animation to small deformations of the environment. We extend one such method, the so-called relationship descriptors, to tackle the issue of motion editing under large environment deformat...

Electron beam deposition of tungsten from W(CO)6 has been studied for a range of different height deposits. The resistance of the deposited tracks was found to decrease with increasing height implying that thicker deposits have a higher metallic cross section. It was also found that when the current limits were increased to values in excess of 100 μA, the resistance decreased with successive vo...

We perform axisymmetric resistive MHD calculations that demonstrate that centrifugal disks can indeed form around Class 0 objects despite magnetic braking. We follow the evolution of a prestellar core all the way to near-stellar densities and stellar radii. Under fluxfreezing, the core is braked and disk formation is inhibited, while Ohmic dissipation renders magnetic braking ineffective within...

Fretting is known to be a major cause of contact deterioration and failure, particularly in tin-plated contacts. During fretting the contact resistance generally increases slowly with time. Superimposed on this slow increase in contact resistance are rapid changes in contact resistance within fractions of a second, called intermittences or short duration discontinuities. Although intermittences...

This paper is the second part of the paper [2]. Both of them are in the field of region-based (or Whitehedian) theory of space, which is an important subfield of Qualitative Spatial Reasoning (QSR). The paper can be considered also as an application of abstract algebra and topology to some problems arising and motivated in Theoretical Computer Science and QSR. In [2], different axiomatizations ...