There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

Three parallel algorithms for classical molecular dynamics are presented. The first assigns each processor a fixed subset of atoms; the second assigns each a fixed subset of inter-atomic forces to compute; the third assigns each a fixed spatial region. The algorithms are suitable for molecular dynamics models which can be difficult to parallelize efficiently—those with short-range forces where the neighbors of each atom change rapidly. They can be implemented on any distributed-memory parallel machine which allows for message-passing of data between independently executing processors. The algorithms are tested on a standard Lennard-Jones benchmark problem for system sizes ranging from 500 to 100,000,000 atoms on several parallel supercomputers--the nCUBE 2, Intel iPSC/860 and Paragon, and Cray T3D. Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems. For large problems, the spatial algorithm achieves parallel efficiencies of 90% and a 1840-node Intel Paragon performs up to 165 faster than a single Cray C9O processor. Trade-offs between the three algorithms and guidelines for adapting them to more complex molecular dynamics simulations are also discussed.

Fast parallel algorithms for short-range molecular dynamics

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1（PfPMP1）与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员，通过启动转录不同的var基因变异体为抗原变异提供了分子基础。

疟原虫var基因转换速率变化导致抗原变异[英]／Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A

Single-layer metal dichalcogenides are two-dimensional semiconductors that present strong potential for electronic and sensing applications complementary to that of graphene.

/pdf/electronics-and-optoelectronics-of-two-dimensional-2jbqr1unvw.pdf

Electronics and optoelectronics of two-dimensional transition metal dichalcogenides.

AsOBP1 is required for host seeking in the malaria vector mosquito, Anopheles sinensis

Collaborative planning of cyber physical distribution system considering the flexibility of data centers

Resolving morphological chemical phase transformations at the nanoscale is of vital importance to many scientific and industrial applications across various disciplines. The TXM-XANES imaging technique, by combining full field transmission X-ray microscopy (TXM) and X-ray absorption near edge structure (XANES), has been an emerging tool which operates by acquiring a series of microscopy images with multi-energy X-rays and fitting to obtain the chemical map. Its capability, however, is limited by the poor signal-to-noise ratios due to the system errors and low exposure illuminations for fast acquisition. In this work, by exploiting the intrinsic properties and subspace modeling of the TXM-XANES imaging data, we introduce a simple and robust denoising approach to improve the image quality, which enables fast and high-sensitivity chemical imaging. Extensive experiments on both synthetic and real datasets demonstrate the superior performance of the proposed method.

Subspace modeling for fast and high-sensitivity X-ray chemical imaging

Solute cloud evolution in channels with suspended vegetation of different configurations

﻿Abstract A taxonomic review of the Chinese species of the genus Xenicotela Bates, 1884 is presented. A new species, Xenicotelagriseomaculatasp. nov., is described from Chongqing, China, and a new combination, Xenicotelaconvexicollis (Gressitt, 1942) comb. nov., is proposed.

/pdf/taxonomic-study-on-the-genus-xenicotela-bates-from-china-2e6f9agv.pdf

Mingwei Chen

Papers

AsOBP1 is required for host seeking in the malaria vector mosquito, Anopheles sinensis

Collaborative planning of cyber physical distribution system considering the flexibility of data centers

Subspace modeling for fast and high-sensitivity X-ray chemical imaging

Solute cloud evolution in channels with suspended vegetation of different configurations

Taxonomic study on the genus Xenicotela Bates from China (Cerambycidae, Lamiinae, Lamiini)

Mingwei Chen

Papers

AsOBP1 is required for host seeking in the malaria vector mosquito, Anopheles sinensis

Collaborative planning of cyber physical distribution system considering the flexibility of data centers

Subspace modeling for fast and high-sensitivity X-ray chemical imaging

Solute cloud evolution in channels with suspended vegetation of different configurations

﻿Taxonomic study on the genus Xenicotela Bates from China (Cerambycidae, Lamiinae, Lamiini)

Taxonomic study on the genus Xenicotela Bates from China (Cerambycidae, Lamiinae, Lamiini)