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CS-FSCL decoding algorithm of polar codes based on critical sets

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Optoelectronics Letters 2024年第7期20卷 418-423页

作者： YUAN jianguo ZHANG Fengguo he Jingjie PANG Yu School of Optoelectronic Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China1

In order to reduce the number of redundant candidate codewords generated by the fast successive cancellation list(FSCL)decoding algorithm for polar codes,a simplified FSCL decoding algorithm based on critical sets(CS-FSCL)of polar codes is *** algorithm utilizes the number of information bits belonging to the CS in the special nodes,such as Rate-1 node,repetition(REP)node and single-parity-check(SPC)node,to constrain the number of the path splitting and avoid the generation of unnecessary candidate codewords,and thus the latency and computational complexity are ***,the algorithm only flips the bits corresponding to the smaller log-likelihood ratio(LLR)values to generate the sub-maximum likelihood(sub-ML)decoding codewords and ensure the decoding *** results show that for polar codes with the code length of 1024,the code rates of 1/4,1/2 and 3/4,the proposed CS-FSCL algorithm,compared with the conventional FSCL decoding algorithm,can achieve the same decoding performance,but reduce the latency and computational complexity at different list ***,under the list size of L=8,the code rates of R=1/2 and R=1/4,the latency is reduced by 33%and 13%and the computational complexity is reduced by 55%and 50%,respectively.

关键词： algorithm FSC critical

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波纹钢板套衬加固大断面隧道衬砌力学性能

铁道建筑 2024年第9期64卷 108-113页

作者：黄文红徐松徐长节何建国朱碧堂童立红潘晓东赵俊宇江西省交通投资集团有限责任公司项目建设管理公司南昌330052 华东交通大学土木建筑学院南昌330013 浙江交工集团股份有限公司杭州310051 浙江工业大学土木工程学院杭州310023 华东交通大学交通运输学院南昌330013

采用有限元软件建立了江西省某座大断面隧道地层-结构数值计算模型,对波纹钢板套衬加固隧道衬砌的力学性能进行研究。结果表明:波纹钢板套衬分担了部分围岩压力,隧道衬砌的应力出现重分布;波纹钢板套衬与既有衬砌组合结构的承载力随着... 详细信息

采用有限元软件建立了江西省某座大断面隧道地层-结构数值计算模型,对波纹钢板套衬加固隧道衬砌的力学性能进行研究。结果表明:波纹钢板套衬分担了部分围岩压力,隧道衬砌的应力出现重分布;波纹钢板套衬与既有衬砌组合结构的承载力随着锚栓数量的增加而增强,建议拱顶至拱肩区间的锚栓间距为2~3 m、拱肩至拱脚位置锚栓间距为1 m;既有衬砌和波纹钢板套衬对围岩压力的承担比呈负相关;考虑经济性和波纹钢板厚度对锚栓受力的影响,建议波纹钢板厚度不超过6 mm。

关键词：大断面隧道套衬加固波纹钢板套衬隧道衬砌力学性能应力锚栓

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Atmospheric fate of typical liquid crystal monomers in the tropospheric gas,liquid,and granular phases

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Journal of Environmental Sciences 2024年第2期136卷 348-360页

作者： Yanru Huo Zexiu An Mingxue Li Jinchan Jiang Yuxin Zhou Ju Xie jianguo Zhang Maoxia he Environment Research Institute Shandong UniversityQingdao 266237China College of Plant Protection Hebei Agricultural UniversityBaoding 071000China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Jinan Environmental Research Academy Jinan 250000China

Mineral aerosol particles significantly impact environmental risk prediction of liquid crystal monomers(LCMs).In this work,we investigated the reaction mechanisms and kinetics of three typical LCMs(4-cyano-3,5-difluorophenyl 4-ethylbenzoate(CEB-2F),4-cyano-3-fluorophenyl 4-ethylbenzoate(CEB-F),and 4-cyanophenyl 4-ethylbenzoate(CEB))with ozone(O_(3))in the atmospheric gas,liquid,and particle phases employing density functional theory(DFT).here,O_(3)is prone to add to the benzene ring without F atom(s)in the selected *** ozonolysis products are aldehydes,carboxylic acids,epoxides,and unsaturated hydrocarbons containing aromatic *** products undergo secondary ozonolysis to generate small molecular compounds such as glyoxal,which is beneficial for generating secondary organic aerosol(SOA).Titanium dioxide(TiO_(2)),an essential component of mineral aerosol particles,has good adsorption properties for LCMs;however,it slightly reduces the reactivity with O_(3).At 298 K,the reaction rate constant of the selected LCMs reacting with O_(3)in the gas and atmospheric liquid phases is(2.74–5.53)×10^(-24)cm^(3)/(mol·sec)and 5.58×10^(-3)–39.1 L/(mol·sec),while CEB-2F reacting with O_(3)on(TiO_(2))_(6)cluster is 1.84×10^(-24)cm^(3)/(mol·sec).The existence of TiO_(2)clusters increases the persistence and long-distance transportability of LCMs,which enlarges the contaminated area of LCMs.

关键词： Liquid crystal monomers(LCMs) Ozonolysis TiO_(2)clusters Adsorption Toxicity assessment

Microsatellite analysis of genetic diversity and population structure of Chinese mitten crab (Eriocheir sinensis)

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Journal of Genetics and Genomics 2008年第3期35卷 171-176页

作者： Yumei Chang Liqun Liang Haitao Ma jianguo he Xiaowen Sun Key Laboratory of Finfish Bioengineering ＆ Breeding in North China Ministry of Agriculture Heilongjiang River Fisheries Research institute Chinese Academy of Fishery Sciences Harbin 150070China College of Life Sciences Zhongshan University Guangzhou 510275 China Life Science of Technology institute Dalian Fisheries University Dalian 116023 China

Chinese mitten crab （Eriocheir sinensis） has higher commercial value as food source than any other species of Eriocheir in China. To evaluate the germplasm resources and characterize the genetic diversity and population structure of the crabs in different water systems, two stocks and two farming populations were assessed with 25 polymorphic microsallite loci available in public GenBank. Basic statistics showed that the average observed heterozygosity （Ho） amongst populations ranged from 0.5789 to 0.6824. However, a remarkable presence of inbreeding and heterozygote deficiencies were observed. To analyze population structure, pairwise FST coefficients explained only -10.3% variability from the subdivision of mitten crab populations, the remaining variability stems from the subdivision within subpopulations. Although the four populations had slight differentiation, different allelic frequencies resulted in distinct population structures. Two stocks and one farming population were clustered together to the phylogenetic branch of Yangtze crab, with an approximate membership of 95%. Whereas, another farming population was clustered singly to the phylogenetic branch of the Liaohe crab, with a membership of 97.1%. The tests for individual admixture showed that Yangtze crab had probably been contaminated with individuals from other water systems. Genetic relationships between populations also supported the conclusion that Yangtze crab and Liaohe crab had different gene pools in spite of the origins of the same species.

关键词： Chinese mitten crab genetic diversity population structure admixture

Bacterial and eukaryotic community interactions might contribute to shrimp culture pond soil ecosystem at different culture stages

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Soil Ecology Letters 2022年第2期4卷 119-130页

作者： Renjun Zhou Hao Wang Dongdong Wei Shenzheng Zeng Dongwei Hou Shaoping Weng jianguo he Zhijian Huang State Key Laboratory of Biocontrol Southern Marine Sciences and Engineering Guangdong Laboratory(Zhuhai)School of Marine SciencesSun Yat-sen UniversityGuangzhou 510275China Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals School of Life SciencesSun Yat-sen UniversityGuangzhou 510275China

Sedimentary bacterial and eukaryotic communities are major components of the aquatic *** the linkages between their community structure and interactions is crucial to understand the diversity and functions of aquatic and soil ***,how their diversity and assembly contribute to their interactions on time scale is *** study examined sedimentary bacterial and eukaryotic communities in shrimp culture ponds at different culture *** most abundant bacteria were Proteobacteria(38.27%),whereas the most abundant eukaryotes were Chytridiomycota(27.48%).Bacterial and eukaryotic diversities were correlated(Phe strong interactions between bacteria and *** showed that the bacterial and eukaryotic communities became increasingly similar on a local scale along with the shrimp *** the eukaryotic community significantly increased in similarity along with the shrimp culture(Phe sedimentary eukaryotic community structure is sensitive under shrimp ***-occurrence network modeling indicated that positive microbial interactions were *** homogeneous selection was the major driver of community *** diversity negatively correlated with operational taxonomic units and positive links in networks(Phereas eukaryotic diversities positively correlated with positive links in networks(Phe sustainable management in aquaculture production.

关键词： Sediment Shrimp culture Bacteria Eukaryotes Microbial community

Growth and inhibition of zinc anode dendrites in Zn-air batteries:Model and experiment

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Chinese Journal of Chemical Engineering 2024年第3期67卷 268-281页

作者： Cuiping he Qingyi Gou Yanqing Hou jianguo Wang Xiang You Ni Yang Lin Tian Gang Xie Yuanliang Chen Kunming University of Science and Technology State Key Laboratory of Complex Nonferrous Metal Resources Clean UtilizationKunming 650093China Kunming University of Science and Technology Faculty of Metallurgical and Energy EngineeringKunming 650093China China Copper Co.Ltd KunmingYunnan 650051China State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals Kunming 650051China Sichuan Shunying Power Battery Materials Co.Ltd Sichuan 620076China

Zinc(Zn)-air batteries are widely used in secondary battery research owing to their high theoretical energy density,good electrochemical reversibility,stable discharge performance,and low cost of the anode active material ***,the Zn anode also leads to many challenges,including dendrite growth,deformation,and hydrogen precipitation *** this context,Zn dendrite growth has a greater impact on the cycle *** this dissertation,a dendrite growth model for a Zn-air battery was established based on electrochemical phase field theory,and the effects of the charging time,anisotropy strength,and electrolyte temperature on the morphology and growth height of Zn dendrites were studied.A series of experiments was designed with different gradient influencing factors in subsequent experiments to verify the theoretical simulations,including elevated electrolyte temperatures,flowing electrolytes,and pulsed *** simulation results show that the growth of Zn dendrites is controlled mainly by diffusion and mass transfer processes,whereas the electrolyte temperature,flow rate,and interfacial energy anisotropy intensity are the main *** experimental results show that an optimal electrolyte temperature of 343.15 K,an optimal electrolyte flow rate of 40 ml·min^(-1),and an effective pulse charging mode.

关键词： Zn-air battery Zinc anode Zinc dendrite Simulated dendrite growth Inhibit dendrite growth Phase-field model

N含量对S32750双相不锈钢中二次奥氏体析出行为的影响

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特殊钢 2024年第1期45卷 18-22页

作者：吴晓涵宋志刚何建国丰涵郑文杰朱玉亮钢铁研究总院有限公司特殊钢研究院北京100081

随着行业对双相不锈钢品质及性能要求的提升,二次奥氏体已经成为影响S32750双相不锈钢应用的关键因素之一。二次奥氏体是“温度-冷却速率”共同作用的一种亚稳态产物,与铁素体相呈近K-S或N-W位向关系,且对N有富集作用,可按形貌将其分为... 详细信息

随着行业对双相不锈钢品质及性能要求的提升,二次奥氏体已经成为影响S32750双相不锈钢应用的关键因素之一。二次奥氏体是“温度-冷却速率”共同作用的一种亚稳态产物,与铁素体相呈近K-S或N-W位向关系,且对N有富集作用,可按形貌将其分为针状二次奥氏体和孤岛状二次奥氏体。研究了N含量对二次奥氏体析出行为的影响。通过制备w[N]为0.02%、0.09%和0.17%的试验钢,并借助热模拟及EBSD检测可知,随着N含量增加,二次奥氏体由弯曲羽毛状向板条形针状转变,且奥氏体相的整体比例增加。经计算可知,奥氏体相的析出方式与本征吉布斯自由能相关,即受到成分与试验温度的影响。

关键词：双相不锈钢二次奥氏体 N含量析出行为形核驱动力

Genomic Analysis of Chinese Giant Salamander Iridovirus(CGSIV)

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Genomic Analysis of Chinese Giant Salamander Iridovirus(CGSI...

Transgelin as a potential target in the reversibility of pulmonary arterial hypertension second to congenital heart disease

中国遗传学会第九次全国会员代表大会暨学术研讨会

作者：李蔚 jianguo he 董传甫 MOE Key Laboratory of Aquatic FoodSafety/StateKey Laboratory for Bio-control School of Life SciencesSunYat-sen University

Chinese giant salamander iridovirus(CGSIV) was isolated from diseased farmed Chinese giant salamanders(Andrias davidianus) in *** is a ranavirus of Iridoviridae family which includes large,icosahedral viruses containing circular,double stranded DNA *** is very limited genomic and proteomic information of *** this report,we have determined the complete genome sequence and virion proteome of the *** genome is 10,5375bp,has a G+C content of 55%,and contains 111 open reading frames(ORF).Of the 111 predicted proteins encoded by CGSIV,97 are closely related to homologs in common midwife toad ranavirus(CMTV),which has caused fatal disease in several amphibian species across Europe. The majority of CGSIV ORF have no predicted ***,functional domains alluding to possible functions were found in 40 putative proteins,including structural proteins and enzymes involved in nucleotide metabolism,DNA replication,transcription,protein modification,and virus-host *** determine the degree of colinearity of the CGSIV genome with those of other ranaviruses,we performed dot plot *** expected,CGSIV did not show major colinearity stretches when compared to the GIV-like fish *** CMTV genome was also found to not be colinear with STIV and EHNV in two separate groups of ***, compared to CMTV,an inversion of the CGSIV genomic segment located between positions～53,000 and～65,000 was observed.A phylogenetic tree was constructed based on concatenated sequences of iridovirus 26 core-gene-encoded proteins,and the result showed high bootstrap support for CGSIV being a member of the genus Ranavirus and an amphibian-like ranavirus (ALRV).CGSIV geonome structure showed that the virus belongs to CMTV group in *** order to identify the temporal class of the 26 core genes,viral transcription was initially monitored during the course of a productive replication cycle at 2,4 and 9 hours after *** confirm result

关键词： CGSIV genome ORF phylogenetic tree

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中国循环杂志 2018年第S1期33卷 165-166页

作者： Li Huang Li Li Tao Yang Wen Li Li Song Xianmin Meng Qing Gu Changming Xiong jianguo he Pulmonary Vascular Disease Center National Center for Cardiovascular DiseasesFuwai HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

Background The reversibility of pulmonary arterial hypertension(PAH)in congenital heart disease(CHD)is of great importance for the operability of *** analysis found that transgelin was significantly upregulated in the lung tissue of CHD-PAH patients,especially in the irreversible ***,how exactly it participated in CHD-PAH development is unknown.

关键词： pulmonary arterial hypertension congenital heart disease CHD-PAH