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Fabrication of Novel Scaffolds Containing Collagen-I/Polylactic Acid/Nanohydroxyapatite via Co-electrospinning Methods

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Chemical Research in Chinese Universities 2010年第4期26卷 662-666页

作者： ZANG Jun-ting QI Xin li shu-qiang li Dong-song GONG Yu-bao YANG Chen XU Feng liU Jian-guo Department of Bone and Joint Surgery First Hospital of Jilin University Changchun 130021 P R. China

A novel scaffold containing collagen-I/polylactic acid（PLA）/nanohydroxyapatite（nHA） was prepared via co-electrospinning method. Different target substrates were used to improve the collection efficiency of this scaffold. The properties of the novel scaffold were compared with those of conventionally prepared ones. Compared to con- ventional method, the modified method was more efficient in producing the scaffold. Moreover, the porosity, thickness, and morphology of the novel scaffold were better than those of scaffolds prepared by conventional methods. The properties of collagen-I, collagen-I/PLA and collagen-I/PLA/nHA scaffolds were also compared. Diameters of the electrospun fibers ranged from 180 to 405 nm, and roughness was present on the surface of the fibers due to the deposition of crystals of nHA along the long axis of the fibers. The fibers of the collagen-I/PLA/nHA scaffold and the fibers of natural bone tissue had similar structure.

关键词： Electrospinning Collagen-I PLA Nanohydroxyapatite

QTL analysis of the developmental changes in cell wall components and forage digestibility in maize(Zea mays L.)

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Journal of Integrative Agriculture 2022年第12期21卷 3501-3513页

作者： li Kun YANG Xue liU Xiao-gang HU Xiao-jiao WU Yu-jin WANG Qi MA Fei-qian li shu-qiang WANG Hong-wu liU Zhi-fang HUANG Chang-ling Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081P.R.China National Engineering Laboratory for Crop Molecular Breeding Beijing 10081P.R.China

Cell wall architecture plays a key role in stalk strength and forage ***,cellulose,and hemicellulose are the three main components of plant cell walls,and they can impact stalk quality by affecting the structure and strength of the cell *** explore cell wall development during secondary cell wall lignification in maize stalks,conventional and conditional genetic mapping were used to identify the dynamic quantitative trait loci(QTLs)of the cell wall components and digestibility traits during five growth stages after *** detergent lignin(ADL),cellulose(CEL),acid detergent fiber(ADF),neutral detergent fiber(NDF),and in vitro dry matter digestibility(IVDMD)were evaluated in a maize recombinant inbred line(RIL)***,CEL,ADF,and NDF gradually increased from 10 to 40 days after silking(DAS),and then they *** initially decreased until 40 DAS,and then it increased *** QTLs were identified for the five traits,and each accounted for 3.48–24.04%of the phenotypic *** QTL hotspots were found,and they were localized in the 1.08,2.04,2.07,7.03,8.05,and 9.03 bins of the maize *** the interval of the pleiotropic QTL identified in bin 1.08 of the maize genome,six genes associated with cell wall component biosynthesis were identified as potential candidate genes for stalk strength as well as cell wall-related *** addition,26 conditional QTLs were detected in the five stages for all of the investigated ***-two of the 26 conditional QTLs were found at 30 DAS conditioned using the values of 20 DAS,and at 50 DAS conditioned using the values of 40 *** results indicated that cell wall-related traits are regulated by many genes,which are specifically expressed at different stages after *** improvements in both forage digestibility and lodging resistance could be achieved by pyramiding multiple beneficial QTL alleles identified in this study.

关键词： quantitative trait loci maize(Zea mays L.) cell wall components forage quality

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巨蟹蛛一种畸形雄性触肢器记述(英文)

动物分类学报 2002年第1期27卷 183-185页

作者： Peter Jaeger li shu qiang Institut fuer Zoologie Johannes Gutenberg Universitaet Institute of Zoology Chinese Academy of Sciences Saarstrasse2255099 MainzGermanyZhongguancun-LuBeijing100080China

During examination of spider material in the Institute of Zoology, Chinese Academy of sciences (IZCAS), one male specimen came to our attention, which showed a unique anomaly in its palp. The morphology of this specim... 详细信息

关键词：巨蟹蛛雄性触肢器形态畸形标本

Emerging progress: photochemical transformation of nitroso compounds

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Science China Chemistry 2025年第1期68卷 118-133页

作者： Ze-Le Chen qiang-qiang li Armido Studer Jun Xuan Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials School of Chemistry & Chemical Engineering Anhui University Organisch-Chemisches Institut Universitat Münster

Nitroso compounds have emerged as highly valuable reaction partners or reagents in organic synthesis due to their rich *** versatile profile of these compounds allows them to function as electrophiles, nucleophiles, diradicals, and radical acceptors in diverse transformations. In recent years, notable progress has been made in harnessing photochemical reactions with nitroso compounds to prepare N,O-containing structures using mild and eco-friendly conditions. Various nitroso compounds like nitrosoarenes, acyloxy nitroso compounds, N-nitrosoamines and nitrites have received significant attention for their ability to introduce NO moieties into complex molecules that are otherwise difficult to access. In this review, we provide an overview of the recent advancements in the visible light-induced conversion of nitroso compounds, with particular emphasis on their role as bifunctional reagents and acceptors of radicals, carbenes and nitrenes.

关键词： nitroso compounds photochemistry radical reaction carbene transformation nitrosoarenes

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一种玉米苗期冠层叶片营养诊断动态光谱指数

光谱学与光谱分析 2014年第6期34卷 1605-1609页

作者：李树强李民赞孙红河南科技大学车辆与动力工程学院河南洛阳471003 中国农业大学现代精细农业系统集成研究教育部重点实验室北京100083

为了有效的解决玉米苗期冠层叶片营养状态车载动态诊断过程中,土壤干扰信息无法剔除的问题,本文提出了一种动态测量用光谱指数MPRI,根据MPRI的构成和特点、论述了利用MPRI辨识土壤与冠层光谱信息的机理,构建了基于MPRI的玉米苗期冠层叶... 详细信息

为了有效的解决玉米苗期冠层叶片营养状态车载动态诊断过程中,土壤干扰信息无法剔除的问题,本文提出了一种动态测量用光谱指数MPRI,根据MPRI的构成和特点、论述了利用MPRI辨识土壤与冠层光谱信息的机理,构建了基于MPRI的玉米苗期冠层叶片叶绿素含量的预测模型,通过车载式作物长势检测系统平台,运用模型对玉米苗期冠层叶片营养状态进行动态诊断与评估,取得良好的效果。研究表明:在车载动态条件下测量玉米苗期冠层叶片营养状态时,土壤的MPRI呈正值而玉米冠层的MPRI呈负值,因此使用光谱指数MPRI能够有效识别土壤背景与冠层叶片光谱信息。设定固定的阈值,能够较为准确和便捷的去除土壤背景光谱信息。基于MPRI构建的冠层叶片叶绿素含量的动态测量预测模型,能够准确的表征冠层叶片的叶绿素含量,模型决定系数R2达0.72,动态测量中对植株冠层的识别率达80%。与其他常用的指数相比,在车载动态测量环境下,光谱指数MPRI具有土壤背景信息识别速度快、正确率高,模型预测精度良好等特点,为玉米苗期冠层营养状态的诊断提供了新的途径。

关键词：动态光谱指数土壤背景光谱作物长势车载系统

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中纺亚目蜘蛛的分类

蛛形学报 2022年第1期31卷 71-72页

作者： li shu-qiang Institute of Zoology Chinese Academy of SciencesBeijing 100101China

Spiders(order Araneae)are generally divided into two suborders,Mesothelae Pocock,1892 and Opisthothelae Pocock,*** possess a series of plates on the abdomen,and with the spinnerets situated near the front of the *** contains four extinct and two extant spider families:+Eomesothelidae Wunderlich,2019;+Burmathelidae Wunderlich,2017;+Cretaceothelidae Wunderlich,2017;+Parvithelidae W underlich,2017;liphistiidae Thorell,1869 and Heptathelidae Kishida,*** Carboniferous taxa,+Arthrolycosidae Fri?,1904,+Arthromygalidae Petrunkevitch,1923,+Pyritaraneidae Petrunkevitch,1953,are called mesotheles but insufficiently known.

关键词：亚目 Spider situated

Recent development in electrode design for wide-temperature supercapacitors

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Science China Chemistry 2025年第1期68卷 96-117页

作者： Jianhong liu qiang Zhou Yuxiao lin Xinsheng Zhao Guangmin Zhou Xiaoxiao li School of Physics and Electronic Engineering Jiangsu Normal University Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School Tsinghua University

An ever-increasing market demand has stimulated the soaring enthusiasm of researchers to develop wide-temperature supercapacitors(SCs). The active electrode is one of the most important parts of SC, which is directly related to the energy density,power transmission and long-term cyclability of the device in the wide-temperature environment. Compared with the SC electrodes aimed for room-temperature application, the SC electrodes for operating at wide-temperature scene often face greater challenges. In this review, the main challenges of SC electrodes under various temperature conditions, including low, high and cross-fade temperatures, are summarized. The relevant performance decay and failure mechanisms of wide-temperature SC electrodes are analyzed. In addition, this review deals with the recent studies and developments in robust wide-temperature SC electrodes with respect to the rational design of electrode structures and the exploitation of advanced active materials. Finally, the future directions for exploring reliable wide-temperature SCs are also proposed.

关键词： supercapacitor wide-temperature electrode design active materials

隙蛛亚科五种蜘蛛重新描述(蜘蛛目,暗蛛科)(英文)

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动物分类学报 2006年第2期31卷 335-345页

作者：徐湘李枢强中国科学院动物研究所北京100080

对5种隙蛛亚科蜘蛛进行了重新描述:梯板隙蛛Coelotes micropsSchenkel ,1963;回弯隙蛛Coelotes palinitropusZhu & Wang ,1994;螺形龙角蛛Draconarius gyriniformis( Wang & Zhu ,1991) ;三分龙角蛛Draconarius triatus(Zhu &Wang,1994) , comb . nov .和西藏龙角蛛DraconariustibetensisWang ,2003。回弯隙蛛、西藏龙角蛛两种蜘蛛的雌性及梯板隙蛛、螺形龙角蛛、三分龙角蛛三种蜘蛛的雄性均系首次报道。三分龙角蛛是从隙蛛属Coelotes移来的新组合。

关键词：暗蛛科单性新发现隙蛛属龙角蛛属新组合

Hoffa fracture associated with ipsilateral femoral shaft fracture： clinical feature and treatment

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Chinese Journal of Traumatology 2011年第6期14卷 376-378页

作者： GONG Yu-bao li Qing-song YANG Chen li shu-qiang liU Jian-guo QI Xin Department of Bone and Joint First Hospital of Jilin University Changchun 130021 China Department of Bone and Joint People＇s HospitalTaizhou 225300 China

Hoffa fracture associated with ipsilateral femoral shaft fracture is very rare. Three cases of this rare type of injury were retrospectively reviewed. The sites of femoral shaft fractures and Hoffa fractures were documented. All femoral shall fractures were managed with internal tixation. The rate ofmisdiagnosis for the Hoffa fractures was documented. Functions of the affected knees were evaluated according to the modified Hospital for Special Surgery （HSS） scores at two years follow-up. Femoral fractures were either transverse or composite in all three cases. Ipsilateral Hoffa fractures occurred at medial condyle in two cases, and lateral condyle in one case. Only one Hoffa fracture was identified preoperatively. All the femoral shaft fiattures healed uneventfully. In the patient whose Hoffa fracture was correctly diagnosed, the modified HSS score was 94. In another patient, whose Hoffa fracture was treated by a second operation, the modified HSS score was 93. And in the third case, who refused additional operation for the Hoffa fracture, the modified HSS score was only 70. Conclusively femoral shall fracture can be associated with ipsilateral Hoffa fracture, especially in motorcycle accident. This type of iniury is very rare and misdiagnosis is common.

关键词： Hoffa fracture Femoral fracture Intraarticular fractures Fracture fixation