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Particle segmentation algorithm for flexible single particle reconstruction

As single particle cryo-electron microscopy has evolved to a new era of atomic resolution, sample heterogeneity still imposes a major limit to the resolution of many macromolecular complexes, especially those with continuous conformational flexibility. Here, we describe a particle segmentation algorithm towards solving structures of molecules composed of several parts that are ...

An adaptive relay node selection algorithm based on opportunity

The collaborative relay network plays an important role in a smart grid application thanks to its high efficiency. However, energy and bandwidth management need to be further improved to extend network life cycle and reduce potential network segmentation. Aiming to balance the network energy consumption, this paper proposes an adaptive relay node selection algorithm based on the ...

Robust optimization for volume variation in timber processing

Volume variation is an uncertainty element which affects timber processing. We studied the volume variation of logs caused by quality defects in traditional timber processing and set up an optimization approach, using a robust optimization method. We used total number of acceptable boards produced to study the relationship between board thickness and raw material logs, using a ...

Coupling Modeling for Functional Surface of Electronic Equipment

antennas and so on. E-mail: Wei WANG born in 1980, is currently an Associate Professor at Key Laboratory of Electronic Equipment Structure Design of Ministry of Education, Xidian University, China. He

Two-step Structural Design of Mesh Antennas for High Beam Pointing Accuracy

degree from Xidian University, China, in 2006. His research interests include mechanical analysis, optimization and control of flexible structures. Tel: +86-2988203040; E-mail: Wei WANG, born in 1980, is

Effect of Facet Displacement on Radiation Field and Its Application for Panel Adjustment of Large Reflector Antenna

) 5. WANG Meng, WANG Wei, WANG Congsi , et al. A practical approach to evaluate the effects of machining errors on the electrical performance of reflector antennas based on paneled forms [J]. IEEE ... G , MACMARTIN D G , NELSON J , et al. Control and alignment of segmented-mirror telescopes: matrices, modes, and error propagation [J]. Applied Optics, 2004 , 43 ( 6 ): 1223 - 1232 . Wei WANG , born

A vaccine with Aβ oligomer-specific mimotope attenuates cognitive deficits and brain pathologies in transgenic mice with Alzheimer’s disease

Background β-Amyloid peptide (Aβ) oligomers are initial factors used to induce Alzheimer’s disease (AD) development, and Aβ monomers have normal physiological function. The antibodies or vaccines against Aβ monomers have serious problems, such as side effects and low curative effects. Therefore, it is essential to specifically target Aβ oligomers rather than monomers for the ...

Reduction behavior and kinetics of vanadium–titanium sinters under high potential oxygen enriched pulverized coal injection

between 20.4 and 23.2 kJ/mol. Corresponding author: Guang-wei Wang E-mail: © The Author(s) 2017. This article is published with open access at link.springer.com ore reduction; sintering; oxygen enrichment

Kinetics of transcription initiation directed by multiple cis-regulatory elements on the glnAp2 promoter

Transcription initiation is orchestrated by dynamic molecular interactions, with kinetic steps difficult to detect. Utilizing a hybrid method, we aim to unravel essential kinetic steps of transcriptional regulation on the glnAp2 promoter, whose regulatory region includes two enhancers (sites I and II) and three low-affinity sequences (sites III-V), to which the transcriptional ...

Pre-computed Region Guardian Sets Based Reverse kNN Queries

all existed algorithms. Acknowledgements Research of Wei Wang is supported by ARC DP130103401 and DP130103405. Muhammad Aamir Cheema is supported by ARC DE130101002 and DP130103405. Open Access This

Robust group compressive sensing for DOA estimation with partially distorted observations

In this paper, we propose a robust direction-of-arrival (DOA) estimation algorithm based on group sparse reconstruction algorithm utilizing signals observed at multiple frequencies. The group sparse reconstruction scheme for DOA estimation is solved through the complex multitask Bayesian compressive sensing algorithm by exploiting the group sparse property of the received ...

Multiple statuses of through-wall human being detection based on compressed UWB radar data

Ultra-wideband (UWB) radar is one of the most favorable methods for through-wall human detection due to its strong penetration ability in many common non-metallic obstructions. The paper proposed the residual subspace projection method for multiple statuses of through-wall human being detection behind. And the compressed sensing method was presented to collect incomplete UWB radar ...

Titanium plate fixation versus conventional approach in the treatment of deep sternal wound infection

Background Deep sternal wound infection (DSWI) is a serious complication post cardiac surgery and associated with increased mortality, morbidity and cost. Sternal titanium plate fixation could be an effective approach to treat DSWI. We sought to compare the effectiveness of titanium plate fixation with conventional approach in the treatment of DSWI. Methods Retrospective data was ...

Interocular symmetry of the peripapillary choroidal thickness and retinal nerve fibre layer thickness in healthy adults with isometropia

Background The aim of this study was to determine the interocular differences in the peripapillary retinal nerve fibre layer (RNFL), peripapillary choroidal thickness (PCT) and subfoveal choroidal thickness (SFCT) in healthy adults with isometropia, using enhanced depth imaging optical coherence tomography (EDI SD-OCT). Methods One hundred healthy Chinese adults with spherical ...

Lipedematous alopecia: clinical and histological analysis of the first male Chinese

Background Lipedematous alopecia (LA) is a rare disorder clinically characterized by a thick boggy scalp and varying severity of hair loss, which primarily occurs in black female adults. In this study, we reported one male adult Chinese diagnosed with lipedematous alopecia for the first time. Case presentation A Chinese male, aged 20 years old, admitted to Shandong Provincial ...

The chimeric Japanese encephalitis/Dengue 2 virus protects mice from challenge by both dengue virus and JEV virulent virus

funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Jian Yang, Huiqiang Yang, Zhushi Li, Hua Lin, Yu Zhao, Wei Wang, Shuai Tan, Xianwu

\(B_c\rightarrow B_{sJ}\) form factors and \(B_c\) decays into \(B_{sJ}\) in covariant light-front approach

We suggest to study the \(B_{s}\) and its excitations \(B_{sJ}\) in the \(B_c\) decays. We calculate the \(B_c\rightarrow B_{sJ}\) and \(B_c\rightarrow B_{J}\) form factors within the covariant light-front quark model, where the \(B_{sJ}\) and \(B_{J}\) denote an s-wave or p-wave \(\bar{b}s\) and \(\bar{b}d\) meson, respectively. The form factors at \(q^2=0\) are directly computed ...

Size effect of Au/PAMAM contrast agent on CT imaging of reticuloendothelial system and tumor tissue

Polyamidoamine (PAMAM)-entrapped Au nanoparticles were synthesized with distinct sizes to figure out the size effect of Au-based contrast agent on CT imaging of passively targeted tissues. Au/PAMAM nanoparticles were first synthesized with narrow distribution of particles size of 22.2 ± 3.1, 54.2 ± 3.7, and 104.9 ± 4.7 nm in diameters. Size effect leads no significant difference on ...