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Characterization of Spindlin1 isoform2 in mouse testis

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Asian Journal of Andrology 2008年第5期10卷 741-748页

作者： ke-mei zhang Yu-Feng Wang Ran Huo Ye Bi Min Lin Jia-Hao Sha Zuo-Min Zhou Laboratory of Reproductive Medicine Nanjing Medical University Nanjing 210029 China

Aim： To investigate the expression of Spindlin 1 （Spin First, reverse-transcription polymerase chain reaction present in mouse testis. Then the expression patterns 1） isoform2 and assess its function in mouse testis. Methods：（RT-PCR） was used to determine whether Spinl isoform2 is of the isoform between newborn and adult mice testes were compared by immunoblot analysis. Finally, the diversity of its localization in mice testes at different ages （days 0, 7, 14, 21, 28 and 60） was observed by immunohistochemistry. The localization of the protein in mouse sperm was also investigated by immunofluorescence. Results： The RT-PCR results show that Spinl isoform2 is present in mouse testis. As shown by immunoblot analysis, the isoform was more highly expressed in adult testes compared with newborn testes. Interestingly, Spinl isoform2 did not show up in the cytoplasm of primary spermatocytes until day 14. Also, the protein exists at the tail of the mouse sperm. Conclusion： Spinl isoform2 is a protein expressed highly in adult testis, which might be involved in spermatogenesis and could be necessary for normal sperm motility.

关键词： Spindlin 1 spermatogenesis sperm motility isoform mouse testis

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广义e-ω-凹算子的不动点及其应用

数学学报（中文版） 2016年第1期59卷 107-116页

作者：张克梅曲阜师范大学数学科学学院

给出广义e-ω-凹算子的定义,在假设算子A不是锥映射的前提下,得到了广义e-ω-凹算子的不动点的存在唯一性以及单调迭代列.最后,将主要结果应用到一类Hammerstein型积分方程中去.

关键词：广义e-ω-凹算子锥不动点

Spectrophotometric Determination of Aluminium with 2,3,7-Trihydroxy-9-[4-(2,4-dihydroxy)phenylazo] phenylfluorone

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Wuhan University Journal of Natural Sciences 1999年第2期4卷 100-102页

作者： HUANG Ying ping, YAN ke mei, zhang Hua shan College of Chemistry, Wuhan University, Wuhan 430072, China

The conditions of color reaction of Aluminium(Ⅲ) with a new organic reagent 2,3,7 trihydroxy 9 [2,4 dihydroxy)phenylazo]phenylfluorone (ARPF) in the presence of cetyltrimethyammonium bromide(CTMAB) were studied. It was found that Aluminium(Ⅲ) reacts with ARPF and CTMAB in pH 6.5 HAc NaAc buffer solution to form a 1∶2 red complex with maximum absorption at 562 nm .The molar absorptivity is 1.10×10 5 L·mol -1 ·cm -1 . Beer's law is obeyed in the range of 0 5.5 μg Al(Ⅲ) per 25 mL. The method has been applied to determination of Aluminium in the limestone with satisfactory results.

关键词： spectrophotometry Aluminium 2,3,7 trihydroxy 9 [4 (2,4 dihydroxy)phenylazo] phenylfluorone

Microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1C-5Mnmedium manganese steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： mei zhang Wenhao Li Yangfei Chen Yang Jiang Xiaofei Guo Han Dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

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渐近线性算子方程的四种类型的解

数学学报（中文版） 2007年第6期50卷 1403-1410页

作者：张克梅孙经先曲阜师范大学数学科学学院曲阜273165 徐州师范大学数学系徐州221116

利用拓扑度理论及不动点指数理论,讨论了渐近线性算子方程的四种类型的解(即零解、正解、负解和变号解)的存在性,并将这一抽象结果应用于微分方程两点边值问题.

关键词：不动点指数变号解正解负解

N1923+TBP协同萃取除铅膏中金属杂质的研究

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无机盐工业 2017年第2期49卷 60-63页

作者：陈梅柯昌美张松山杨柯武汉科技大学化学工程与技术学院湖北武汉430081

以仲碳伯胺(N1923)和磷酸三丁酯(TBP)为萃取剂协同萃取铅膏中的金属杂质,萃取剂采用异辛醇为改性剂,磺化煤油为稀释剂。考察了N1923含量、TBP含量、萃取相比O/A、萃取时间、萃取温度等因素对萃取率的影响。研究结果表明:当N1923质量分数... 详细信息

以仲碳伯胺(N1923)和磷酸三丁酯(TBP)为萃取剂协同萃取铅膏中的金属杂质,萃取剂采用异辛醇为改性剂,磺化煤油为稀释剂。考察了N1923含量、TBP含量、萃取相比O/A、萃取时间、萃取温度等因素对萃取率的影响。研究结果表明:当N1923质量分数为30%~35%、TBP质量分数为50%~60%、相比O/A为3~4、萃取时间为8~10 h、萃取温度为50~60℃时,Fe、Cu、Sn、Cd的萃取率可达80%以上,Sb、Zn的萃取率可达70%以上,As的萃取率可达45%以上。

关键词：铅膏除杂 N1923+TBP 萃取

The Morphological Study on the Colon-rectum Remark Nerve of African Ostrich Chicks

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The Morphological Study on the Colon-rectum Remark Nerve of ...

模拟大气氮沉降对温带森林土壤微生物群落结构的影响

湖北省神经科学学会学术年会

作者： WangYun Peng ke-mei Wei Lan zhang Yudan Pang Shasha College of Animal Science and Veterinary Medicine,Huazhong Agricultural University,Wuhan 430070,P.R.China

The morphology of colon-rectum Remark nerve of African Ostrich Chicks was investigated by gross anatomy and histochemical *** results are as following:the colon-rectum Remark nerve,which is special to avian,is a nerve...

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生态学杂志 2016年第10期35卷 2676-2683页

作者：许可王春梅张艺杨欣桐刘卫敏北京林业大学环境科学与工程学院北京100083

本研究以温带森林土壤为研究对象,设置野外模拟氮沉降实验,分析不同施氮形态和施氮水平对微生物群落结构的影响。试验设置对照(Control,0 kg N·hm^(-2)·a^(-1))、混合态低氮(NH_4NO_3,50 kg N·hm^(-2)·a^(-1))、混合态高氮(NH_4NO_3... 详细信息

本研究以温带森林土壤为研究对象,设置野外模拟氮沉降实验,分析不同施氮形态和施氮水平对微生物群落结构的影响。试验设置对照(Control,0 kg N·hm^(-2)·a^(-1))、混合态低氮(NH_4NO_3,50 kg N·hm^(-2)·a^(-1))、混合态高氮(NH_4NO_3,150 kg N·hm^(-2)·a^(-1))、铵态氮低氮((NH_4)_2SO_4,50 kg N·hm^(-2)·a^(-1))、铵态氮高氮((NH_4)_2SO_4,150 kg N·hm^(-2)·a^(-1))、硝态氮低氮(NaNO_3,50 kg N·hm^(-2)·a^(-1))、硝态氮高氮(NaNO_3,150 kg N·hm^(-2)·a^(-1))7种氮处理,持续施氮3年后,运用磷脂脂肪酸(PLFA)法对土壤微生物群落结构进行测定。结果表明:在不同水平的氮添加下,土壤微生物总量、细菌、土壤革兰阳性细菌(G+细菌)、土壤革兰阴性细菌(G-细菌)和真菌的PLFA含量均随施氮水平的增加而升高;在不同形态的氮添加下,混合态氮添加提高了微生物总量、细菌、真菌和放线菌的PLFA含量。主成分分析(PCA)表明,除铵态氮低氮添加样地外,其他氮添加处理样地中的土壤微生物结构都发生了改变。这些结果表明,模拟大气氮沉降初期,氮添加会增加温带森林土壤微生物生物量,达到一定水平后会改变土壤微生物群落结构。

关键词：氮添加温带森林土壤磷脂脂肪酸微生物群落结构

An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells

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Nano-Micro Letters 2025年第2期17卷 372-375页

作者： Shuai Xu Youdi zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo ke Gao key Laboratory of Advanced Green Functional Materials College of ChemistryChangchun Normal UniversityChangchun 130032People’s Republic of China Shandong Provincial key Laboratory for Science of Material Creation and Energy Conversion School of Chemistry and Chemical EngineeringShandong UniversityQingdao 266237People’s Republic of China College of Polymer Science and Engineering Sichuan UniversityChengdu 610065People’s Republic of China State key Laboratory and Institute of Elemento‑Organic Chemistry Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071People’s Republic of China Institute of Polymer Optoelectronic Materials and Devices State key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Tianjin key Laboratory of Molecular Optoelectronic Sciences School of Materials Science and EngineeringTianjin UniversityTianjin 300350People’s Republic of China State key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China

Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer *** optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture *** approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关键词： Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management