Hybrid core-multishell nanowire forests for electrical connector applications

Electrical connectors based on hybrid core-multishell nanowire forests that require low engagement forces are demonstrated. The physical binding and electrical connectivity of the nanowire electrical connectors arise from the van der Waals interactions between the conductive metallic shells of the engaged nanowire forests. Specifically, the nanofibrillar structure of the connectors causes an amplification of the contact area between the interpenetrating nanowire arrays, resulting in strong adhesion with relatively low interfacial resistance. The nanowire electrical connectors may enable the exploration of a wide range of applications involving reversible assembly of micro- and macroscale components with built-in electrical interfacing.open151

Алкогольная зависимость у женщин с асоциальным поведением

АСОЦИАЛЬНОЕ ПОВЕДЕНИЕЖЕНСКИЙ АЛКОГОЛИЗМАЛКОГОЛЬНАЯ ЗАВИСИМОСТЬПредставлено систематизированное описание клинических проявлений и диагностических критериев алкогольной зависимости у женщин. Рассматриваются клинические и патопсихологические закономерности развития изменений личности у женщин с алкогольной зависимостью. Даны рекомендации по применению организационных и терапевтических методов, а также профилактики алкогольной зависимости у женщин с асоциальным поведением

A flexible measurement system for the characterization of thermoelectric materials

The figure of merit needs to be determined to rate the quality of thermoelectric materials (TM). Therefore, it is necessary to measure all involved parameters-the Seebeck coefficient (S), the thermal conductivity (λ), and the electrical conductivity (σ). Hence, a concept of a measurement system was developed to perform a quick and global characterization of TM by the use of two different sample mounts. The maximum measurement temperature was planned to be at least 600 °C. The first mount contains a four-point measurement system to determine the electrical conductivity. The second one generates a heat flow which could be metered by measuring temperatures at six specified points. In combination with the recorded voltage at two points on the sample, S and λ can be calculated at the same time. Because of the strong dependence between contact resistance and contact pressure, the measurement system was designed to keep the pressure constant for a high reproducibility and a small error margin. All measuring points like the commercial spring-mounted pogo-pins and the thermocouples (TC), which are integrated spring-mounted in a special designed capsule, have small variances. Experiments could show that the divergence of the force from the mounting cylinder to the sample is constant and not dependent on the air pressure. Thus, the accuracy of the measurement device was improved by increasing the contact pressure