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Parentage assignment and parental contribution analysis in large yellow croaker Larimichthys crocea using microsatellite markers

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Current Zoology 2012年第2期58卷 244-249页

作者： Xiande LIU Guangtai ZHAO zhiyong WANG Mingyi cai Hua YE Qiurong WANG Key Laboratory of Healthy Mariculture for the East China Sea Ministry of Agriculture E R. China Fisheries College Jimei University Xiamen 361021 China

The large yellow croaker Larimichthys crocea is one of the most important fish species in China. To estimate the re- productive success of breeders, three independent full-factorial crosses were created and the fins of breeders and progenies were sampled for microsatellite analysis. Out of 959 offspring from three sets, 99.6% were assigned to their parents using 6-7 mi- crosatellite markers. In all crosses, some parent pairs produced a large number of offspring and some parent pairs did not produce any offspring. The contributions of male or female parents were unequal, ranging from 1.0-89.3% across the three sets. The loss of putative Ne was 69.6% in set 1, 31.2% in set 2 and 57.6% in set 3. These results suggest that the unequal contribution of parents is universal in artificial breeding ofL. crocea, especially in a small population, and this should be taken into account in hatcheries or when releasing animals for resource enhancement

关键词： Larimichthys crocea Parental contribution Parentage assignment Microsatellite marker

Effect of solidification rate on the coarsening behavior of precipitate in rapidly solidified Al-Si alloy

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Progress in Natural Science:Materials International 2016年第4期26卷 391-397页

作者： zhiyong cai Chun Zhang Richu Wang Chaoqun Peng Ke Qiu Naiguang Wang School of Materials Science and Engineering Jiangxi University of Science and Technology School of Materials Science and Engineering Central South University

The gas-atomized Al-Si alloy powder with different particle sizes was subjected to isothermal annealing for understanding the effect of solidification rate on precipitation and growth Si crystals. The results show that Si precipitates grew more quickly in the small samples with a large solidification rate due to high interfacial energy. Moreover, these Si crystals had a tendency to form a quasi-spherical shape after annealing at a low temperature or for a short holding time. Coarsening of the Si precipitates during annealing was examined using a LSW equation. Thermal stability of the rapidly solidified alloy was significantly influenced by its original microstructure as a result of high solidification rate. Furthermore,more serious clustering of Si-Si phase was also observed in the small samples, attributed to the rapid coarsening of the Si phases.

关键词： Rapid solidification Solidification rate Super-saturated solutions Grain growth Aluminum Silicon alloy

Coupling metal-organic frameworks and wood-based carbon for water remediation

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Nano Research 2024年第6期17卷 5661-5669页

作者： Akhter Zia Manish Neupane Aidan McGlone Rui He Ruikun Xin Yifeng Liu Qiangu Yan Jinwu Wang Ling Li zhiyong cai Pei Dong Yingchao Yang Department of Mechanical Engineering University of MaineOronoME 04469USA Department of Mechanical and Aerospace Engineering University of MissouriColumbiaMO 65211USA Department of Mechanical Engineering George Mason UniversityFairfaxVA 22030USA Department of Civil and Environmental Engineering Rice UniversityHoustonTX 77005USA Department of Materials Science and NanoEngineering Rice UniversityHoustonTX 77005USA Forest Products Laboratory USDAMadisonWI 53726USA School of Forestry Resources University of MaineOronoME 04469USA

Fresh and clean water is highly demanded throughout the *** effectively address the need,nanomaterials enabled nanotechnology has been explored as a means of more efficient,reliable,and environmentally friendly approach towards water treatment *** concern in adopting nanomaterials is how to retrieve them from water body to avoid secondary *** this work,the earth abundant and sustainable wood,e.g.,basswood,was selected and carbonized into porous carbon as host skeleton,and metal-organic frameworks(MOFs),e.g.,MOF-199 with extremely high surface area,were grown throughout all channels in the porous basswood *** the traditional organic pollutant,methyl orange(MO),the combination of MOFs and basswood carbon(MOFs@carbon)demonstrates a remarkable adsorption capacity,which is 243%and 454%higher than basswood carbon and MOF-199,*** an outstanding adsorption performance originates from that the positively charged carbon pulls MO molecules close to carbon surface,leading to a high MO molecule concentration,and then the concentration gradient drives the MO molecules to be stored inside MOFs,functioning like *** findings highlight the potential application of coupled MOFs and biomass carbon in addressing water remediation.

关键词： metal-organic framework(MOF)-199 basswood carbon MOFs@carbon methyl orange

Efficient random saliency map detection

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Science China(Information Sciences) 2011年第6期54卷 1207-1217页

作者： HUANG zhiyong, HE FaZhi , cai XianTao, ZOU ZhengQin, LIU Jing, LIANG MingMing & CHEN XiaoComputer School, Wuhan University, Wuhan 430074, China 1. Computer School Wuhan University Wuhan 430074 China

Most image retargeting algorithms rely heavily on valid saliency map detection to proceed. However, the inefficiency of high quality saliency map detection severely restricts the application of these image retargeting methods. In this paper, we propose a random algorithm for efficient context-aware saliency map detection. Our method is a multiple level saliency map detection algorithm that integrates multiple level coarse saliency maps into the resulting saliency map and selectively updates unreliable regions of the saliency map to refine detection results. Because of the randomized search, our method requires very little additional memory beyond that for the input image and result map, and does not need to build auxiliary data structures to accelerate the saliency map detection. We have implemented our algorithm on a GPU and demonstrated the performance for a variety of images and video sequences, compared with state-of-the-art image processing.

关键词： saliency map detection image retargeting random algorithm

纤维素纳米纤丝增强聚合物纳米复合材料的研究进展

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高分子材料科学与工程 2013年第3期29卷 173-176,181页

作者：卿彦 zhiyong cai Ronald Sabo 吴义强李贤军中南林业科技大学材料科学与工程学院湖南长沙410004 美国林产品研究所

纤维素纳米纤丝具有优异的力学性能和天然的纳米网状结构,在其增强的聚合物复合材料中发挥了重要作用。本文综述了纤维素纳米纤丝增强亲水性聚合物(酚醛树脂、聚乙烯醇、淀粉等)及非亲水性聚合物(环氧树脂、聚乙烯、聚乳酸等)复合材料... 详细信息

纤维素纳米纤丝具有优异的力学性能和天然的纳米网状结构,在其增强的聚合物复合材料中发挥了重要作用。本文综述了纤维素纳米纤丝增强亲水性聚合物(酚醛树脂、聚乙烯醇、淀粉等)及非亲水性聚合物(环氧树脂、聚乙烯、聚乳酸等)复合材料的加工制备与主要性能。针对纤维素纳米纤丝制备成本高、与非亲水性聚合物结合强度低等关键问题,提出了开展进一步研究的建议。

关键词：纤维素纳米纤丝亲水性聚合物非亲水性聚合物纳米复合材料

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层状地基与弹性薄板相互作用的边界元解

湖南大学学报（自然科学版） 2017年第3期44卷 120-125页

作者：艾智勇蔡建邦同济大学地下建筑与工程系上海200092 同济大学岩土及地下工程教育部重点实验室上海200092

将无限大薄板的基本解作为薄板边界积分方程的核函数,对薄板的内部和边界进行离散,并假定薄板内部和边界上的节点与地基反力的分布情况,得到薄板的边界元方程组;同时基于层状地基的解析层元解,通过Guass-Legendre积分得到地基柔度矩阵;... 详细信息

将无限大薄板的基本解作为薄板边界积分方程的核函数,对薄板的内部和边界进行离散,并假定薄板内部和边界上的节点与地基反力的分布情况,得到薄板的边界元方程组;同时基于层状地基的解析层元解,通过Guass-Legendre积分得到地基柔度矩阵;结合地基与薄板接触面上的位移协调条件,得到层状地基与薄板共同作用问题总的边界元法方程组;求解该方程组,得到层状地基与薄板共同作用问题的解答.基于本文理论,编制了相应的FORTRAN程序,通过与已有文献结果对比验证本文理论及程序的正确性,数值分析结果表明:方形基础薄板情况下,离板中心越近,垂直于坐标轴y(x)方向、距离相等的2条线段的竖向位移差越小,且该位移差随着板-土刚度比减小而减小;随着板长宽比的增大,板中心点与长边中点位移差变化不明显,而短边中心与边界角点的位移差也有相类似的规律.

关键词：边界元层状地基薄板解析层元

精神分析视阈下大学生心理危机预防与干预策略研究

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江苏高教 2022年第12期 132-138页

作者：蔡智勇南京师范大学心理学院南京210024 南京审计大学心理健康教育教学部南京211815

大学生心理危机干预是当前高校心理健康教育领域一个重要实践课题。弗洛伊德将心理危机解释为自我攻击的一种结果,相继提出了两种心理危机理论。文章运用精神分析理论框架来解析心理危机的内部动力,在此基础上提出大学生心理危机的预防... 详细信息

大学生心理危机干预是当前高校心理健康教育领域一个重要实践课题。弗洛伊德将心理危机解释为自我攻击的一种结果,相继提出了两种心理危机理论。文章运用精神分析理论框架来解析心理危机的内部动力,在此基础上提出大学生心理危机的预防策略和干预方法。心理危机预防策略包括加强心理危机风险评估,建设心理安全文化,明确心理咨询师角色,认真开展心理普查,签订反心理危机协议;心理危机干预方法包括建立治疗联盟,移情-反移情的识别,反移情恨的修通,超我的分析,心理危机的合作式评估与管理。

关键词：精神分析心理危机预防策略干预策略大学生

Effective of Microwave-KOH Pretreatment on Enzymatic Hydrolysis of Bamboo

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Journal of Sustainable Bioenergy Systems 2012年第4期2卷 104-107页

作者： Zhiqiang Li Zehui Jiang Benhua Fei Yan Yu zhiyong cai Forest Products Laboratory USDA Forest Service Madison USA International Centre for Bamboo and Rattan Beijing China

Bamboo, with its advantages of fast growth, short renovation, easy propagation and rich in cellulose and hemicellulose, is a potential feedstock for bioethanol or other biofuels production. The objective of this study was to examine the feasibility of microwave assistant KOH pretreatments to enhance enzymatic hydrolysis of bamboo. Pretreatment was carried out by immersing the bamboo in KOH (12% and 8% w/w bamboo) solutions and exposing the slurry to microwave radiation power of 400 W for 30min. Chemical composition of the pretreated substrates and spent liquor was analyzed. Pretreated substrates were enzymatic hydrolyzed, and glucose and xylose in the hydrolysate were analyzed. The results showed that the pretreated substrate with microwave assisted KOH had significantly higher sugar yield than the untreated samples. The fermentation inhibitors formic acid, furfural, HMF and levulinic acid were much lower than acid pretreatment reported.

关键词： Bamboo Microwave-KOH Pretreatment Chemical Pretreatment Enzymatic Hydrolysis BioethanolProduction

An Over Modulation Strategy and Simulation Study for Matrix Converter

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微计算机信息 2008年第6期24卷 285-287,304页

作者： LI zhiyong cai HAO LI XIAOYING CHEN HAIXIA (College of Electrical and Information Engineering,Changsha University of Science and Technology,Changsha 410076,Hunan Province)

The over modulation strategy of matrix converter(MC) is put forward on the basis of conventional AC/DC/AC MC control theory. Firstly,imaginary AC/DC converter is over modulated to get the greatest fictitious DC voltage,secondly,imaginary DC/AC converter is over modulated,which effectively improve the voltage transfer ratio. Two voltage transfer ratio is emphatically analyzed with Fourier transform. At last,different modulation method is simulated with MATLAB,the simulation results verified the theoretical analysis and validity of the over modulation strategy,which provide a theoretical basis for the further research.

关键词： MC over modulation voltage transfer ratio Fourier transform simulation