A scanning tunnelling microscope is used to pull a polythiophene wire from a Au(111) surface while measuring the current traversing the junction. Abrupt current increases measured during the lifting procedure are associated with the detachment of molecular subunits, in apparent contradiction with the expected exponential decrease of the conductance with wire length. Ab initio simulations reprod...

Single staggered is a design development of normal wire and tube heat exchanger that wires are welded with staggered configuration on two sides. Capacity of wire and tube heat exchanger is the ability of the heat exchanger to release heat. The objective of this study is to analyse the effect of wire pitch (pw) on capacity of single staggered wire and tube heat exchanger. The research...

We introduce a theoretical approach based on scattering theory and total energy methods that treats transport non-linearities, conformational changes and charging effects in molecular wires in a unified way. We apply this approach to molecular wires consisting of chain molecules with different electronic and structural properties bonded to metal contacts. We show that non-linear transport in al...

Figure 1. A diagram depicting th e hybrid biological/organic photochemical half-cell. This report describes our progress towards the design, assembly, characterization, and optimization of a biological/organic hybrid photochemical halfcell. This device will couple PS I, which efficiently captures and stores energy derived from sunlight, with either an [FeFe]-H2ase or a [NiFe]-H2ase, which can g...

We present an electrochemical route to prepare nanocrystalline InSb thin films that can be transferred to an industrial scale. The morphology, composition, and crystallinity of the prepared uniform and compact thin films with a surface area of around 1 cm were investigated. The essential electrical characteristics such as conductivity, Seebeck coefficient, the type, concentration and mobility o...

A thermal vapor transport process has been employed for fabrication of boron-related (boron, boron–silicon alloys, and MgB2) nanowire films on Au-coated Si and MgO substrates. Tangled polycrystalline as well as aligned single-crystalline boron nanowires (BNWs) have been obtained and their growth mechanism investigated at different growth temperatures, cooling rates, and vapor sources. The growt...

Container terminals are facing a set of interrelated problems. Container handling problems at container terminals are NP –hard problems. The docking time of container ships at the port must be optimized. In this paper we have built a simulation model that integrates all the activities of a container terminal. The proposed approach is applied on a real case study data of container terminal at El...

T. Aref,1,2 A. Levchenko,3 V. Vakaryuk,4 and A. Bezryadin1 1Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA 2Low Temperature Laboratory, Aalto University, 00076 Aalto, Finland 3Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA 4Materials Science Division, Argonne National Laboratory, Argonne, Illinois...

We study the effect of a magnetic field on the behaviour of a slender conducting elastic structure subject to end forces. Both statical (buckling) and dynamical (whirling) instability are considered and we also compute post-buckling configurations. The theory used is the geometrically exact Cosserat rod theory. We consider two types of boundary conditions: the traditional welded boundary condit...

The development of electronic devices at the single-molecule scale requires detailed understanding of charge transport through individual molecular wires. To characterize the electrical conductance, it is necessary to vary the length of a single molecular wire, contacted to two electrodes, in a controlled way. Such studies usually determine the conductance of a certain molecular species with on...