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Exploit SSR in Cryptromeria fortunei and application in genetic diversity analysis

Journal of Forestry Research 2015年第4期26卷 963-969页

作者： Yongquan Lu jingli zhang Zaikang Tong A Nurturing Station for the State Key Laboratory of Subtropitical Silviculture Zhejiang Agriculture and Forestry University

Cryptromeria fortunei is one of the main forest plantation species in the subtropical high altitude areas in China. In this paper we collected 49 C. fortunei germplasm resources and provides a study of the utility of freely available C. japonica EST resources for the development of markers necessary for genetic diversity analyses of C. fortunei. By screening 24,299 EST sequences from C. japonica with SSR Finder, we identified 2384 ESTs car- rying 2783 SSR motifs. We successfully obtained 364 （15 %） primers from 2419 putative SSR loci. Of the 80 candidate SSR markers tested, 70 （87.5 %） yielded stable and clear PCR products. With those primers, the genetic diversity of 49 C. fortunei we collected was studied. The results showed that 18 primers yield polymorphism within these accessions. These 18 primers generated 48 scorable SSR loci and the average number of polymorphic SSR loci per primer was 2.7. The PIC value varied from 0.375 to 0.8101, with the average of 0.4780. The Shannon index is 0.5718, and the value of the observed number of alleles and effective number of alleles are 1.9167 and 1.7289, respectively. The genetic coefficient of these 49 accessions varied from 0.28 to 0.87. According to the genetic dis- tances, a cluster tree was constructed. At genetic coefficient of 0.60, these 49 accessions can group into 3： group I contains only FJ-laizhou accession, and group II contains 2accessions from FJ-layang, and the other one group con- tains mixed accessions. At genetic coefficient of 0.68, the former group II was constructed into 7 subgroups, with the first 3 subgroups contain 16 accessions in which 11 （69 %） are from Fujian province, and the later 4 subgroup contain 31 accessions in which 20 （65 %） were from Zhejiang province.

关键词： Cryptromeria fortunei EST–SSR Germplasm collection Genetic diversity

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Influence of solid retention time on sludge characteristics and effluent quality in immersed membrane bioreactor

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Chinese Science Bulletin 2008年第24期53卷 3942-3950页

作者： CAO ZhanPing zhang jingli zhang HongWei School of Environmental Science and Engineering Tianjin University Tianjin 300072 China Institute of Membrane Science and Technology Tianjin Polytechnic University Tianjin 300160 China

Here the effect of solid retention time(SRT) on the concentration of the mixed liquor suspend solid(MLSS),the sludge characteristics,the content of extra-cellular polymeric substances(EPS),the viscosity of mixed liquor and effluent quality in the immersed membrane bioreactor(IMBR) was *** results indicate that the increase of the EPS content is the main reason for the increase of mixed liquor viscosity,the former is positively correlated with the latter(R2 = 0.9751).The size distribution profile of particles in the mixed liquor presents double-peak shape at SRT more than 30 *** filtration resistance of membrane in IMBR is mainly caused by the tiny particles and the viscosity of the mixed *** this study,the extension of SRT can hardly affect the removal efficiency of Chemical Oxygen Demand(COD) and NH+4―N,and when SRT is below 30 days,silt density index(SDI15) is less than 3,the effluent can be deeply treated by using reverse osmosis system(RO) or nano-filtration system(NF).The method of controlling SRT is put forward by analyzing the relationship between SRT and the minimum generation-time of dominant bacteria(at the maximum specific growth rate under the operation temperature).

关键词： IMBR 固体固定时间 EPS 过滤电阻沙土密度

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Improving strength-ductility synchronously of Electron beam welded Ti600/Ti2AlNb joint through isothermal forging

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Progress in Natural Science:Materials International 2024年第3期34卷 532-539页

作者： Yongqiang zhang Xiangyi Xue Guoming Zheng jingli zhang Huiming Li Shewei Xin State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi'an Qin Ti Intelligent Manufacturing Technologies Co.Ltd. Northwest Institute for Nonferrous Metal Research Xi'an University of Science and Technology Avic Xi'an Aircraft Industry Group Company Ltd.

Different alloys can be flexibly combined to meet the performance needs of different parts of the compressor disc by welding process. However, achieving a good combination of dissimilar alloys with different mechanical properties has always been a research difficulty. In this work, a Ti600/Ti2AlNb joint was fabricated through electron beam welding and an isothermal forging was used to optimized its microstructure and mechanical performance. The isothermal forging process increases the ultimate tensile strength（UST） and yield strength（YS）of the Ti600/Ti2AlNb joint by ～18 %, while ～2.5 times the ductility. It is indicated that before forging, the Ti600/Ti2AlNb joint exhibits a much lower strength than that of Ti600 matrix, whereas the opposite is true after isothermal forging. The isothermal forging broken the coarse columnar grains of Ti600/Ti2AlNb joint and render to an equiaxed B2 structure in which the acicular α2and O phase are precipitated, resulting a synchronous enhancement of strength and ductility. This work may pave an effective routine for improving the comprehensive mechanical properties of dissimilar metal welding joint.

关键词： Electron beam welding Isothermal forging Mechanical performance Ti600/Ti2AlNb joint

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Interfacial charge effects of supported-metal-cluster heterostructures on azo hydrogenation catalyzation

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Nano Research 2024年第5期17卷 3853-3862页

作者： Zhenhua Gu jingli zhang Zijun zhang Qingxue Mu Liangchong Yu Taolei Sun Lei Shen Guanbin Gao State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases School of ChemistryChemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China

The impact of interfacial charge on catalytic performance of supported-metal-cluster(SMC)heterostructures remains unclear,hindering efforts to develop high-performance SMC *** we systematically investigated interfacial charge effects of SMCs using a model system of graphene-supported gold-nanoclusters(AuNCs/rGO)for azo *** types of SMCs with different interfacial charges were synthesized by anchoring electropositive 2-aminoethanethiol(CSH),amphoteric cysteine(Cys),and electronegative 3-mercaptopropionic-acid(MPA)onto AuNCs/rGO,*** three SMCs exhibited high and selective catalytic activity to azo-hydrogenation in four representative azo *** catalytic activity of Cys@AuNCs/rGO was lower than that of CSH@AuNCs/rGO but higher than that of MPA@AuNCs/***,the cyclic stability of Cys@AuNCs/rGO was inferior to that of both CSH@AuNCs/rGO and MPA@AuNCs/*** mechanistic studies revealed that amino ligands modified CSH@AuNCs and Cys@AuNCs agglomerated into large-size gold nanoparticles on rGO surface during catalytic reaction under NaBH_(4) action,leading to reduced efficiency and cyclic ***,non-amino ligand modified MPA@AuNCs only partially detached from rGO surface without agglomeration,resulting in better cyclic *** of amino groups in ligands such as modifying-NH_(3)^(+)group in Cys into imine to form N-isobutyryl-L-cysteine(NIBC)substantially improved the cyclic stability while maintaining the high activity in the NIBC@AuNCs/rGO catalyst *** work provides an approach for developing a highly-active and stable SMC heterostructure catalyst via manipulating interfacial charges in SMC.

关键词： interfacial charge effect supported-metal-cluster catalyst azo hydrogenation graphene supported gold nanoclusters

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KOH-Activated Porous Carbons Derived from Chestnut Shell with Superior Capacitive Performance

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Chinese Journal of Chemistry 2016年第11期34卷 1093-1102页

作者： Man Jiang jingli zhang Lingbao Xing Jin Zhou Hongyou Cui Weijiang Si Shuping Zhuo Resources and Environmental Engineering Shandong University of Technology Zibo Shandong 255049 China School of Chemical Engineering Shandong University of Technology Zibo Shandong 255049 China

Porous carbons （PC） were prepared from a waste biomass named chestnut shell via a two-step method involving carbonization and KOH activation. The morphology, pore structure and surface chemical properties were investigated by scanning electron microscopy （SEM）, N2 sorption, Raman spectroscopy, X-ray diffraction （XRD） and X-ray photoelectron spectroscopy （XPS）. The carbons have been evaluated as the electrode materials for supercapacitors by a two-electrode system in 6 mol/L KOH electrolyte. Benefiting from the porous texture, high surface area and high oxygen content, the PCs derived from chestnut shell have exhibited high specific capacitance of 198.2 （PC-l）, 217.2 （PC-2） and 238.2 F·g^-1 （PC-3） at a current density of 0.1 Aog l, good rate capability of 55.7%, 56.6% and 54.9% in a range of 0.1 -20 A·g^-1 and high energy density of 5.6, 6.1 and 6.7 Wh·kg^-1, respectively. This is believed to be due to electric double layer capacitance induced by the abundant micropores and extra pseudo-capacitance generated by oxygen-containing groups. At a power density of 9000 Wh·kg^-1, the energy density is 3.1, 3.5 and 3.7 Whokg 1 for PC-l, PC-2 and PC-3, respectively, demonstrating the potential of the carbons derived from chestnut shells in energy storage devices.

关键词： biomass activation chestnut shell porous carbons supercapacitor

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Three Dimensional Sulfur-doped Graphene Hydrogels with Tetrathiafulvalene for High Performance Supercapacitors

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Chinese Journal of Chemistry 2016年第1期34卷 46-52页

作者： jingli zhang Man Jiang Lingbao Xing Kun Qin Tianzhen Liu Jin Zhou Weijiang Si Hongyou Cui Shuping Zhuo School of Chemical Engineering Shandong University of Technology Zibo Shandong 255049 China Resources and Environmental Engineering Shandong University of Technology Zibo Shandong 255049 China

By using tetrathiafulvalene as reducing and doping agents, three-dimensional （3D） sulfur-doped graphene hydrogels （SGHs） were facilely prepared in mixed solvents of dimethyl formamide and water. Several investigations reveal that TTF plays a critical role in the formation of such unique 3D architecture, as it not only reduces GO to self-assembly into 3D structures, but also can be transformed to TTF^·＋ and TTF^2＋ as doping agents in the reduction process. The morphology, crystal structure, chemical bonding, elemental composition and porosity of the as-prepared SGHs have been studied. Benefiting from well-defined and cross-linked 3D porous network architectures, the supercapacitors based on the SGHs in KOH 212.5 F·g^-1 at 0.3 A·g^-1. Furthermore, this capacitance also degree of reversibility in the repetitive charge/discharge cycling electrolyte exhibited a high specific capacitance of showed good electrochemical stability and a high test.

关键词： tetrathiafulvalene graphene three-dimensional sulfur-doped graphene hydrogels supercapacitors

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黔张常铁路桥梁总体设计

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铁道工程学报 2022年第10期39卷 42-46页

作者：张景利中铁第一勘察设计院集团有限公司西安710043

研究目的:黔张常铁路沿线地形地质条件极其复杂,可溶岩分布广泛,环保要求高,为降低岩溶区段工程建设的风险,采取了高线位的线路方案。本文通过系统总结复杂山区岩溶地质条件下桥梁工程特点,研究给出可溶岩区桥梁结构选型、岩溶区基础处... 详细信息

研究目的:黔张常铁路沿线地形地质条件极其复杂,可溶岩分布广泛,环保要求高,为降低岩溶区段工程建设的风险,采取了高线位的线路方案。本文通过系统总结复杂山区岩溶地质条件下桥梁工程特点,研究给出可溶岩区桥梁结构选型、岩溶区基础处理措施的原则,并分析总结两座矮塔斜拉桥技术特点,为同类桥梁提出经济合理的桥式方案选择。研究结论:(1)岩溶山区铁路地质条件复杂,桥梁结构选型应以合理跨越、有效避让为原则;(2)溶洞的处理应视其分布特点采取不同的应对措施;(3)矮塔斜拉桥结构刚度大、动力特性优,斜拉索加劲可有效控制混凝土结构的徐变变形,可作为同类型特点铁路桥梁的首选;(4)本研究成果可为复杂山区、岩溶区铁路桥梁设计提供借鉴和参考。

关键词：铁路桥梁大跨度高墩岩溶矮塔斜拉桥

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生物淋滤去除农用污泥中重金属的效果及工艺

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农业工程学报 2009年第2期25卷 177-182页

作者：曹占平张景丽天津工业大学中空纤维膜材料与膜过程教育部重点实验室天津300160 天津城市建设学院环境与市政工程系天津300384

污水处理厂污泥中的重金属含量高是污泥农用的主要障碍。该文针对天津污水处理厂污泥含铜量高的特性,分别以硫酸亚铁和硫粉作为培养基进行生物淋滤对比试验,前者对铜的去除率远远高于后者。以硫酸亚铁作为培养基,研究了投配比、接种污... 详细信息

污水处理厂污泥中的重金属含量高是污泥农用的主要障碍。该文针对天津污水处理厂污泥含铜量高的特性,分别以硫酸亚铁和硫粉作为培养基进行生物淋滤对比试验,前者对铜的去除率远远高于后者。以硫酸亚铁作为培养基,研究了投配比、接种污泥量、pH值和温度对污泥中重金属去除效果的影响。结果表明,在硫酸亚铁投配比为10 g/L、污泥接种量为20%、温度为28℃、淋滤时间为4 d时,污泥中重金属Cu、Pb、Cr、Ni、Zn和Cd的去除率分别为89%、38%、61%、 76%、72%和57%,其相应残余量分别为116、62.5、98、22、174、1.1 mg/kg。在7～28℃范围内,温度越高,氧化亚铁硫杆菌活性越高,生物淋滤时间越短;28℃和35℃下氧化亚铁硫杆菌活性基本相同。以硫酸亚铁为培养基淋滤处理后污泥中重金属的含量可满足《农用污泥中污染物控制标准》(GB4284-1984)。

关键词：污泥处理重金属微生物淋滤氧化亚铁硫杆菌

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精神的记忆与追寻——金小民油画艺术

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美术 2024年第5期 149-151页

作者：张景莉长治学院美术系

油画的生命力在于对社会生活和时代意义的发掘,在反映现实的同时滋养观众的审美认知和精神理想。本文通过分析金小民油画的创作题材、创作方法和艺术追求,探索当代油画所蕴含的精神气象和价值导向。

关键词：金小民当代油画主题性创作

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Application of Rhododendron Species (Ericaceae) in Green System of Kunming City in Yunnan, China

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Journal of Landscape Research 2012年第10期4卷 63-67页

作者： zhang jingli ZHAO Haizhou WU Yawen WANG Yunyue Yunnan Agricultural University

Species, application frequencies, habitat features and combination modes of Rhododendron species in Kunming City were studied through random sampling in different subareas of Kunming City. The results show that Rhododendron species were widely applied in parks, residential areas and street-side green spaces. Diversified application patterns presented excellent landscape effects, but only a few species were used, for example, Rhododendron pulchrum Sweet., R. hybridum, R. simsii var. simsii, while R. delavayi Franch. and R. simsii var. mesembrinum Rehd. were occasionally found. Landscaping features of Kunming were characterized by domination of Rhododendron species, advantages and problems of Rhododendron species in landscaping of Kunming City were analyzed. It was proposed that introduction and domestication of wild Rhododendron species should be enhanced, rich germplasm resources of Rhododendron species should be fully used, and more indigenous Rhododendron species applied.

关键词： Rhododendron species Kunming City Green system Species application Plant furnishing pattern

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