Some properties of germanene when adsorption of NH3 in the external field

This work studies on germanene when adsorbing NH3 gas, the system is placed in an 0 external electric field of 0.3 V / AÅ. By using the density functional theory (DFT) and VASP software, the properties of the energy band structure, the density of the state, and the charge displacement have been studied. There are four locations in which NH3 doped research is hollow, bridge, valley, and top. At the bridge position for the minimum adsorption energy, this indicates that the bridge position is the most optimal position when doped with NH3. The state density energy region structure, the charge displacement will be studied for the most optimal position. Placing the system in an external electric field will change the energy band structure as well as other properties of the NH3 doped germanene. This study will be useful for all steps of research in sensor or biomedical.

Darlington Upgrade Project – Bridge design for manufacture and assembly

<p>The Darlington Upgrade Project (DUP) consists of the upgrade of approximately 3.3 kilometres of the existing Main South Road forming part of the Adelaide North-South Transport Corridor.</p><p>This paper focusses on the design of the project’s three composite steel box girder bridges and challenges employing the Design for Manufacture and Assembly (DfMA) principles on the bridge superstructures which were constructed on temporary towers in an assembly yard approximately 500 metres from the final bridge position and transported using the Self-Propelled Modular Transporter (SPMT) technology. SPMTs, a first in Australia for bridge application, allows pre- fabrication of the bridge superstructure improving safety for both construction crews and motorists.</p><p>Evaluation of stresses imposed on the superstructure obtained from the real time monitoring instrumentation during installation is also presented.</p>

The manifestation of coordination failures in service triads

Purpose This paper aims to investigate governance in service triads, specifically studying significant steering and connecting coordination failures, to reveal typically hidden characteristics and consequences. Design/methodology/approach This study focuses on coordination functions and activities between a buyer (a government department), a customer (a military service) and two service providers. Rich data on these normally confidential service ties are drawn from an official report into the causes of a fatal accident involving a UK reconnaissance aircraft and specifically from the evidence presented regarding the earlier development of its complex safety case. The authors also analysed a range of additional secondary data sources. Findings The authors examine the sources, drivers and manifestation of coordination failures. The authors uncover a series of coordination failures driven from the bridge position, revealing that while bounded rationality and opportunism influenced steering coordination failures, connecting coordination failures were associated with knowledge asymmetry, dyadic inertia and unethical practices. Practical implications Organisations and governments delivering complex projects and knowledge-intensive professional services should guard against outsourcing the “coordination” activity to a third party, thereby relinquishing the bridge position. Handing over the bridge position to an integrator would leave the client vulnerable to coordination dysfunctions such as bounded rationality, opportunism, knowledge asymmetry, dyadic inertia and unethical practices. Originality/value The study links the previously separate research streams of service triads and inter-organizational coordination. While extant research pays attention to mainly positive control functions, this study focuses on all three actors in two (failed) service triads – and highlights the impact of coordination activities and failures.

Braid group and leveling of a knot

Any knot [Formula: see text] in genus-[Formula: see text] [Formula: see text]-bridge position can be moved by isotopy to lie in a union of [Formula: see text] parallel tori tubed by [Formula: see text] tubes so that [Formula: see text] intersects each tube in two spanning arcs, which we call a leveling of the position. The minimal [Formula: see text] for which this is possible is an invariant of the position, called the level number. In this work, we describe the leveling by the braid group on two points in the torus, which yields a numerical invariant of the position, called the [Formula: see text]-length. We show that the [Formula: see text]-length equals the level number. We then find braid descriptions for [Formula: see text]-positions of all [Formula: see text]-bridge knots providing upper bounds for their level numbers and also show that the [Formula: see text]-pretzel knot has level number two.

Phonon investigation on the interaction of hydrogen on the missing row Pt (110)-(1x2) surface

The phonon calculations of hydrogen when adsorbed on the missing row Pt(110)-(1x2) surfaceusing the Ultrahigh Vacuum (UHV) model were studied. The calculations were based on a combinationof Density Functional Theory (DFT) and the approximation of hydrogen vibrations on thesurface. The harmonic vibration of H on the Pt surface was used for the calculation in this study. Atthe hydrogen coverage of 1ML for the model surface (when H completely covering the Pt surface),the interaction formed at the edge of the first layer (short bridge - R) was the most stable. The lessstable positions were recorded as the bridge position between two atoms on a horizontal row inthe second layer (trough - T), the top position of the second surface layer - fcc (F), the bridge positionof the second surface layer - hcp (F'), and the least stable position was the top position of thefirst layer (T'). When accounting the quantum calculation for the model, the adsorption energy ofhydrogen at the short bridge position increased by 90 meV, and the stable adsorption order of hydrogenchanged with the most stable positions ware R, T, T', F', F respectively. This demonstratesdthe significant influence of quantum effects on the adsorption model.

Transversus Abdominis Thickness at Rest and Exercise in Individuals with Poststroke Hemiparesis

The activity of the transverse abdominal (TrA) muscle affects the stabilization of the trunk. It is known that after a stroke, people experience problems in performing daily activities. The purpose of this study was to examine whether there are differences in the transversus abdominal thickness between the two sides of the body in individuals with hemiparesis and controls. Eight patients with hemiparesis and nine controls matched for age and body mass index were examined by musculoskeletal ultrasound in four conditions: a) At rest, b) abdominal hollowing maneuver from the supine position, c) bridge, and d) abdominal hollowing maneuver from the bridge position. In each of the above conditions, the symmetry index was calculated as the absolute value of the difference in thickness between the two sides. Analysis of variance showed a lower TrA thickness at rest and exercise in patients compared to the control group (p < 0.05). Further, patients showed a lower contraction thickness ratio during exercise compared to controls (p < 0.05). The absolute symmetry of the TrA thickness was 12.59 ± 6.43% to 19.31 ± 10.43% in patients and it was significantly greater than the control group (3.01 ± 2.47% to 4.47 ± 2.87%). According to the above results, it seems that transverse abdominal activation exercises are particularly useful for improving the stability of patients with hemiparesis, as long as they are located and adapted to the deficit of each patient.