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Progress report on the study of wood-decaying fungi in China

Chinese Science Bulletin 2012年第33期57卷 4328-4335页

作者： zhou liwei DAI YuCheng State Key Laboratory of Forest and Soil Ecology Institute of Applied Ecology Chinese Academy of SciencesShenyang 110164 China

This study addressed three important aims:(1) undermining the previously obtained raw data about wood-decaying fungi(WDF) distribution and continuously investigating permanent plots to address certain scientific questions in ecology,(2) resolving the higher-level phylogeny of WDF with the help of multiple loci,and(3) testing and estimating the medicinal values of species that are closely related to well-known medicinal *** than 1200 species and 2469 strains of WDF in China were identified from 28908 specimens collected from a series of field *** these materials,studies in multiple disciplines,such as ecology,taxonomy and phylogeny,and medicine,have been *** respect to ecology,the diversity of wood-decaying polypores significantly differed among a boreal forest zone,a temperate and warm temperate forest zone,and a tropical and subtropical forest *** instance,from north to south,the number and proportion of brown-rot species and the proportion of species found on fallen trunks were both *** ecological patterns of wood-decaying polypores on gymnosperm and angiosperm trees were also explored by a case study in Northeast *** the total species richness was similar between the two tree groups,several other characteristics were significantly different,such as community structure and richness in certain *** taxonomy and phylogeny of wide samples were referred to and their phylogenetic positions were resolved or at least partially *** particular,phylogenetic knowledge about four genera,Fomitiporia,Ganoderma,Inonotus and Perenniporia,which include medicinal species,was essential for further research to determine the medicinal values of these types of *** these medicinal species,we mainly focused on Inonotus obliquus for its medicinal ***,polysaccharides and lanostane-type triterpenoids,extracted from the sterile conk of this species,could dramatically decrease levels o

关键词：中国东北地区木材腐朽菌系统发育地位物种丰富度 DPPH自由基药用价值羟基自由基进度

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On the theory of temporal aberrations for dynamic electron optics

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Frontiers of Optoelectronics 2008年第Z1期1卷 50-57页

作者： liwei zhou Department of Optical Engineering School of Information Science and Technology Beijing Institute of Technology

A new theory for temporal aberrations of dynamic optics by applying the direct integral method is put forward in the present paper.A new definition of temporal aberration is given,in which a certain initial energy of electron emission emitted from a photocathode along the axial direction■ was taken as a *** expressions of the temporary aberration coefficients in integral forms for the electron optical imaging systems have been *** electrostatic concentric spherical system model is used to test and verify expressions of the coefficients given by the "direct integral method" and "variation method".The analytical solutions prove that both methods are correct and *** to the "τ variation method",the direct integral method only needs to carry out the integral calculation for the three geometrical temporal aberration coefficients of the second order,which is more convenient and suitable for computation in the practical ***,results of the study for the theory of temporal aberrations of electron optical imaging systems,from the point of view of methodology,have been elaborated.

关键词： cathode lenses electron optical imaging systems dynamic electron optics theory of temporal aberrations

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Co_(3)S_(4)-pyrolysis lotus fiber flexible textile as a hybrid electrocatalyst for overall water splitting

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Journal of Energy Chemistry 2024年第2期89卷 336-344,I0008页

作者： Qiulan zhou Zhen Liu Xuxu Wang Yaqian Li Xin Qin Lijuan Guo liwei zhou Weijian Xu Academician Workstation Changsha Medical UniversityChangsha 410219HunanChina College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082HunanChina College of Environmental Science and Engineering Hunan UniversityChangsha 410082HunanChina School of Basic Medicine Changsha Medical UniversityChangsha 410219HunanChina

Electrocatalytic overall water splitting(OWS),a pivotal approach in addressing the global energy crisis,aims to produce hydrogen and ***,most of the catalysts in powder form are adhesively bounding to the electrodes,resulting in catalyst detachment by bubble generation and other uncertain interference,and eventually reducing the OWS *** surmount this challenge,we synthesized a hybrid material of Co_(3)S_(4)-pyrolysis lotus fiber(labeled as Co_(3)S_(4)-p LF)textile by hydrothermal and hightemperature pyrolysis processes for electrocatalytic *** to the natural LF textile exposing the uniformly distributed functional groups(AOH,ANH_(2),etc.)to anchor Co_(3)S_(4)nanoparticles with hierarchical porous structure and outstanding hydrophily,the hybrid Co_(3)S_(4)-p LF catalyst shows low overpotentials at 10 m A cm^(-2)(η_(10,HER)=100 m Vη_(10,OER)=240 mV)alongside prolonged operational stability during electrocatalytic *** calculations reveal that the electron transfer from p LF to Co_(3)S_(4)in the hybrid Co_(3)S_(4)-p LF is beneficial to the electrocatalytic *** work will shed light on the development of nature-inspired carbon-based materials in hybrid electrocatalysts for OWS.

关键词： Overall water splitting Hybrid electrocatalyst Textile Lotus fiber Co_(3)S_(4)nanoparticles

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Cloning of the kininogen gene from Lampetra japonica provides insights into its phylogeny in vertebrates

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Journal of Genetics and Genomics 2009年第2期36卷 109-115页

作者： liwei zhou Xin Liu Ping Jin Qingwei Li College of Life Sciences Liaoning Normal University Dalian 116029 China

Kininogens, the precursors of bradykinins, ubiquitously exist in vertebrates, including mammals, birds, amphibians, and fishes. To elucidate the phylogeny of kininogen genes in early vertebrates, we cloned the full-length cDNA of kininogen gene from the liver of Lampetra japonica. The open reading frame of this sequence contained 546 bp and encoded 181 amino acids, including a cystatin domain without the canonical binding site for cysteine proteinases and a bradykinin domain. Our results suggested that in lampreys and most of other vertebrates, there might be only one kininogen gene, which was fused by certain sequences during vertebrate evolution and encoded proteins with more functions; however, another special kininogen gene, only encoding the bradykinin domain with multiple copies in some species, arose only in amphibians for adapting themselves to the unique environment. Using reverse transcription PCR, kininogen mRNA was also detected in lamprey gut, kidney, and leukocyte, but absent in lamprey buccal gland. Our findings may provide insights into the phylogeny of kininogen genes as well as other gene families in vertebrates.

关键词： kininogen Lampetrajaponica phylogeny bradykinin domain cystatin domain tissue distribution

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复合电磁同心球系统的成像电子光学. D章:近轴方程渐近解（英文）

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光学学报 2019年第4期39卷 26-33页

作者：周立伟北京理工大学光电学院北京100081

首次探讨了复合电磁同心球系统近轴方程的渐近解。推导了复合电磁同心球系统中近轴方程两个特解的渐近解中各类系数的表达式。通过复合电磁同心球系统两个特解精确解的验证,证明了Monastyrski[Journal of Technical Physics,1978,48(6):... 详细信息

首次探讨了复合电磁同心球系统近轴方程的渐近解。推导了复合电磁同心球系统中近轴方程两个特解的渐近解中各类系数的表达式。通过复合电磁同心球系统两个特解精确解的验证,证明了Monastyrski[Journal of Technical Physics,1978,48(6):1117-1122]提出的用渐近解求解成像电子光学近轴方程两个特解的方法正确且可行,仅个别之处需要改进。

关键词：成像系统成像电子光学系统复合电磁阴极透镜复合电磁同心球系统近轴方程的渐近解近轴方程的近似解

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静电聚焦同心球系统的成像电子光学B章:近轴横向色差与几何横向球差

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光学学报 2022年第8期42卷 98-104页

作者：周立伟北京理工大学光电学院北京100081

在A章基础上,进一步研究两电极静电聚焦同心球系统的轴上点电子光学横向像差。研究表明,对于成像电子光学系统,由光阴极发射的电子所形成的图像弥散,其轴上点的图像弥散由近轴横向色差与几何横向球差两部分组成,这证明了在静电聚焦同心... 详细信息

在A章基础上,进一步研究两电极静电聚焦同心球系统的轴上点电子光学横向像差。研究表明,对于成像电子光学系统,由光阴极发射的电子所形成的图像弥散,其轴上点的图像弥散由近轴横向色差与几何横向球差两部分组成,这证明了在静电聚焦同心球系统中,阴极透镜的二级近轴横向色差即Recknagel-Apцимович公式普遍成立。研究了宽电子束与细电子束之间轴上点横向像差之差异,最后讨论了两电极同心球系统向近贴聚焦系统过渡的特例。

关键词：成像系统电子光学成像系统静电聚焦阴极透镜静电聚焦同心球系统近轴横向色差几何横向球差

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Numerical simulation of the start-up process of a miniature ion thruster

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Plasma Science and Technology 2022年第7期24卷 63-73页

作者： Xinyong YANG Liqiu WEI Wenjia JIANG Tianyuan JI liwei zhou Hong LI Yongjie DING Jingfeng TANG Ning GUO Daren YU School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001People's Republic of China Key Laboratory of Aerospace Plasma Propulsion Ministry of Industry and Information TechnologyHarbin 150001People's Republic of China Science and Technology on Vacuum Technology and Physics Laboratory Lanzhou Institute of PhysicsLanzhou 730000People's Republic of China

A particle-in-cell Monte Carlo collision model of a discharge chamber is established to investigate the start-up process of a miniature ion *** present the discharge characteristics at different stages(the initial stage,development stage,and stable stage)according to the trend of the discharge current with *** discharge current is the sum of the sidewall current and the backplate *** the start-up process,the sidewall current lags behind the backplate *** variation and distribution characteristics of the discharge current over time are determined by the electron density distribution and electric potential distribution.

关键词： miniature ion thruster discharge chamber start-up process Monte Carlo collision

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Aberration correction for deformable-mirror-based remote focusing enables high-accuracy whole-cell super-resolution imaging

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Photonics Research 2024年第4期12卷 821-832页

作者： WEI SHI YINGCHUAN HE JIANLIN WANG LULU zhou JIANWEI CHEN liwei zhou ZEYU XI ZHEN WANG KE FANG YIMING LI Department of Biomedical Engineering Southern University of Science and TechnologyShenzhen 518055China

Single-molecule localization microscopy(SMLM)enables three-dimensional(3D)investigation of nanoscale structures in biological samples,offering unique insights into their ***,traditional 3D super-resolution microscopy using high numerical aperture(NA)objectives is limited by imaging depth of field(DOF),restricting their practical application to relatively thin biological ***,we developed a unified solution for thick sample super-resolution imaging using a deformable mirror(DM)which served for fast remote focusing,optimized point spread function(PSF)engineering,and accurate aberration *** effectively correcting the system aberrations introduced during remote focusing and sample aberrations at different imaging depths,we achieved high-accuracy,large DOF imaging(~8μm)of the whole-cell organelles[i.e.,nuclear pore complex(NPC),microtubules,and mitochondria]with a nearly uniform resolution of approximately 35 nm across the entire cellular volume.

关键词： enable mirror resolution

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