The characterization of adsorbed protein films with ultrahigh vacuum (UHV) surface analysis techniques requires dehydration the samples, which can cause significant alterations in conformation. Trehalose coating was used this study to inhibit these conformational changes from occurring when preparing samples for UHV. Surface plasmon resonance (SPR) showed that air-dried trehalose-stabilized antiferritin and anti-IgM both retained a proportion their hydrated antigen binding activity. In...

This paper presents a decentralized state estimation (SE) for the newly emerging hybrid ac/dc microgrid. The microgrid consists of an ac and dc network which are connected via interlinking converter. proposed SE is able to estimate variables both networks in way that separately conducted while only limited information exchanged during process. dual decomposition approach adopted as technique this paper. Simulation results suggest performs comparably centralized microgrids terms accuracy,...

This study presents a new equivalent lithium-ion (Li-ion) battery model for online energy management system. It has an equilibrium potential E and internal resistance Rint. The is expressed as function of state-of-charge (SOC), current temperature. Rint includes R1 R2. defined the resistance, which can be formulated by discharging R2 because change adaptive extended Kalman filter employed to implement system based on proposed Li-ion model. SOC considered state variable charging or process...

Abstract The characterization of adsorbed protein films with ultrahigh vacuum (UHV) surface analysis techniques requires dehydration the samples, which can cause significant alterations in structure. It is desirable to preserve structure during drying, so UHV could be done a state that more representative proteins' actual aqueous environment. In this study, two methods, trehalose protection and glutaraldehyde fixation, were explored for their feasibility preserving powerful technique,...

Uniaxial tensile tests of a new type hot rolled Mg–3Sn–1Zn (TZ31) alloy have been investigated within the temperature range 25 to 200°C. The elongation failure ϵ f increases from 21·9 at 25°C 79·0 200°C, while 0·2 offset yield strength and peak true σ p decrease 141 60 MPa 264 91 respectively. thermal stability globular Mg 2 Sn precipitates is beneficial TZ31 elevated temperatures. However, dynamic recovery recrystallisation play an important role in elongation. Results obtained here can be...

With the continuous proliferation of renewable energy generation, distributed photovoltaic inverters operating at a maximum power point reduce inertia systems, degrading system frequency stability and potentially causing severe oscillations in systems after being disturbed. The virtual synchronous generator (VSG) control method, which causes to possess damping, now plays an important role field generation. However, while introducing advantages machines, problems with are also introduced...

This article proposes an effective approach to solve the network reconfiguration problem during power system restoration. In stage of reconfiguration, sequence line energizing, plan restore critical loads each bus, and start generating units should be confirmed. The proposed technique is based on adaptively tunable fuzzy logic controller, in which membership functions are tailored according inputs adaptively. this way, restoration generators can determined uniquely. strategy tested IEEE...

Aiming at the important research topic of optimal scheduling in microgrid field, model for multi-objective dispatching is established with objective minimum economic and environmental treatment costs. On this basis, organically integrated constraint handling technology, optimization biogeography-based algorithm then a constrained evolutionary further established. The corresponding mechanism, determining strategy habitat suitability index migration are improved, convergence performance...

An environmentally-friendly wood adhesive was developed by blending konjac glucomannan (KGM), chitosan (CH), and polyvinyl alcohol (PVA) together. The viscosity of the KGM-CH-PVA (KCP) blend determined, morphology film observed using scanning electron microscopy (SEM). KCP applied to plywood during manufacturing process, effects KGM, CH, PVA contents on bond strength investigated. Results showed that KGM greatly increased adhesive, whereas addition decreased in test range. SEM observations...

This paper talks about optimal PMU placement problem with consideration of conventional measurements from the angle robustness state estimation (SE). Using Binary Linear Integer Programming method, local redundancy existing is considered in strategy. Besides, considering number PMUs implemented yearly limited, a multistage strategy proposed according to improvements on redundancy. Case study IEEE 14-bus system carried out show effectiveness method SE.

Abstract Taking the difference in wall thickness as evaluation index, simulation analysis of spinning process 304 stainless steel cylindrical parts is carried out. The influence roller nose radius, feed speed, and percent reduction on stress strain studied, optimum combination parameters obtained. Through test, with an outside diameter 300.8 mm are successfully spun. After forming solution treatment, tensile strength reaches 557~566 MPa, yield 220~232 elongation 41.3%~42.5%.

In present paper we compute the rolling up of leading/trailing-edge vortex sheets and their interaction for delta double-delta wings, using a simple two-dimensional discrete model. The numerical results show that trailing-edge vortex, which has an opposite sign circulation leading-edge vortices, can be rolled both wings two separated leading edge inboard outboard, formed over wing surface. vortices are from each other at small angles attack, merges with outboard one when attack increased. in...

Aiming at the important research topic of optimal scheduling in microgrid field, general model for multiobjective dynamic a is established with objective minimizing economic and environmental costs. On this basis, organically integrated constraint handling technology, optimization, biogeography-based optimization algorithm, then constrained evolutionary suitable further established. The corresponding mechanism, determination method habitat suitability index, migration strategy are improved,...

The effects of small amounts Ce-rich misch metal (Mm: 0.5, 1.0 and 2.0 wt.%) addition on the microstructure tensile properties as-cast Mg-7Al-3Sn-1Zn wt.% (ATZ731) alloy have been investigated. Mm restricts formation Mg17Al12 phase but greatly promotes Al4Mm phase. proper enhances strength ductility ATZ731 alloys at both room temperature (RT) 175 °C. with exhibit an advantageous combination ductility, ultimate (UTS), 0.2% yield (YS) elongation to failure (Ef) °C ~148 MPa, ~102 MPa ~28%,...

In this paper, the potential-stream function method, a very efficient computational method for inverse design of two-dimensional compressor blades in transonic flow conditions is presented. By investigating influence prescribed velocity coefficient distribution on blade surface, it found that non-physical solution usually obtained by general could be effectively avoided adjusting local distribution. The objective functions were set-up leading edge, trailing edge closing problems, and outlet...

Microgrid provides an effective technical way for the grid connection of distributed generation. Aiming at important research topic optimal scheduling in microgrid field, economic cost and environmental treatment are considered comprehensively to model operation grid-connected mode. By adaptively adjusting migration rate using habitat fitness index value normalized individual adding a certain differential perturbation operator mechanism, biogeography-based optimization algorithm is improved,...