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上海教育科研 2006年第10期 23-25页

作者：钱洁南京师范大学教育科学学院 210046

一、质的研究：凸显人与人之间的理解

关键词：研究者历史转变科学与人文质的研究科学主义教育研究人文主义研究对象集体无意识

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试论体育课对大学生整体素质提高的影响

体育科学 2000年第5期20卷 22-24页

作者：钱杰安徽财贸学院体育教研室安徽蚌埠233041

研究方法 :采用问卷调查、教学实验、分析比较等方法 ,研究体育课对大学生整体素质提高的影响效果。主要结果和结论 :在体育课中实施体育文化教育和心理素质训练方法是培养和提高大学生整体素质的有效途径。建议

关键词：体育教育学大学生体育课整体素质适应能力

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优化准则内容和形式的集合论统一

系统工程理论与实践 2000年第9期20卷 69-73页

作者：马谦杰中国煤炭经济学院管理科学与工程系山东烟台264005

将决策的最优准则和满意准则综合起来统一用集合论和模糊数学形式进行描述 ,并对信息不完全时、评价模糊时的决策准则进行了具体的论述。

关键词：最优准则满意准则集合论决策理论

Recent progress in co-detection of single-cell transcripts and proteins

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Nano Research 2024年第1期17卷 132-150页

作者： Shanqing Huang qian Fan Yidi Wang Zhi Huang Weixiong Shi Yanli Gong Ting Yang jie Wang Lingling Wu Chaoyong Yang Discipline of Intelligent Instrument and Equipment College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Institute of Molecular Medicine Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of General Surgery Xiang’an Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen 361101China Research Center for Analytical Sciences Department of ChemistryCollege of SciencesNortheastern UniversityShenyang 110819China

Cellular heterogeneity is a universal property of living systems,and the interrogation of single cells facilitates in-depth understanding of distinct cellular states and functions in various biological ***-analysis of transcripts and proteins from the same single cells opens the way to decipher complex RNA regulatory frameworks and phenotypes,facilitating the understanding of cellular fate and function regulations,discovery of novel cell types,and construction of a high-resolution cell ***,we review the state-of-art advances in the development of methodologies for co-analysis of single-cell transcripts and ***,imaging-based methods are summarized with particular emphasis on optical and mass spectrometry ***,sequencing-based approaches for high-throughput and sensitive co-analysis of single-cell transcripts and proteins are described,including droplet-,microwell-,and split-pool-based ***,combined methods with more flexibility and universality are *** methods commonly employ different strategies or reactions to convert transcripts and proteins of single cells into distinct signals simultaneously,which can be detected by different instruments or ***,some perspectives on the future challenges and development trends in this field are presented.

关键词： single cell optical imaging mass spectrometry imaging single-cell RNA sequencing(scRNA-seq) co-detection

Inkjet-Printing Controlled Phase Evolution Boosts the Efficiency of Hole Transport Material Free and Carbon-Based CsPbBr_(3) Perovskite Solar Cells Exceeding 9%

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Energy & Environmental Materials 2024年第2期7卷 209-220页

作者： Lihua Zhang Shi Chen jie Zeng Zhengyan Jiang qian Ai Xianfu Zhang Bihua Hu Xingzhu Wang Shihe Yang Baomin Xu Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells Southern University of Science and TechnologyShenzhen 518055China Department of Chemistry The Hong Kong University of Science and TechnologyClear Water BayHong KongChina Henan Key Laboratory of Photovoltaic Materials Henan UniversityKaifeng 475004China Guangdong Key Lab of Nano-Micro Material Research School of Chemical Biology and BiotechnologyShenzhen Graduate SchoolPeking UniversityShenzhen 518055China Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong Southern University of Science and TechnologyShenzhen 518055China Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices Southern University of Science and TechnologyShenzhen 518055China

Hole transport material free carbon-based all-inorganic CsPbBr_(3)perovskite solar cells(PSCs)are promising for commercialization due to its low-cost,high open-circuit voltage(V_(oc))and superior *** to the different solubility of PbBr_(2)and CsBr in conventional solvents,CsPbBr_(3)films are mainly obtained by multi-step spin-coating through the phase evolution from PbBr_(2)to CsPb_(2)Br_(5)and then to CsPbBr_(3).The scalable fabrication of high-quality CsPbBr_(3)films has been rarely ***,an inkjet-printing method is developed to prepare high-quality CsPbBr_(3)*** formation of long-range crystalline CsPb_(2)Br_(5)phase can effectively improve phase purity and promote regular crystal stacking of CsPbBr_(3).Consequently,the inkjet-printed CsPbBr_(3)C-PSCs realized PCEs up to 9.09%,8.59%and 7.81%with active areas of 0.09,0.25,and 1 cm^(2),respectively,demonstrating the upscaling potential of our fabrication method and *** high performance is mainly ascribed to the high purity,strong crystal orientation,reduced surface roughness and lower trap states density of the as-printed CsPbBr_(3)*** work provides insights into the relationship between the phase evolution mechanisms and crystal growth dynamics of cesium lead bromide halide films.

关键词： all-inorganic perovskite solar cells CsPbBr_(3) inkjet-printing phase evolution

Mechanical performance of 22SiMn2TiB steel welded with lowtransformation- temperature filler wire and stainless steel filler wire

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Journal of Iron and Steel Research International 2024年第4期31卷 967-981页

作者： Zi-dong Lin Kai-jie Song Zhen Sun Zi-qian Zhu Xue-feng Zhao Constantinos Goulas Wei Ya Xing-hua Yu School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China Department of Design Production and Management Faculty of Engineering Technology.University of TwenteEnschede 7500 AETheNetherlands Rotterdam Additive Manufacture Fieldlab(RAMLAB) Rotterdam 3089 JWTheNetherlands

TX-80 low-transformation-temperature(LTT)welding wire was used to replace the traditional ER 307Si welding wire to realize the connection of 22SiMn2TiB armor steel in manual overlay *** previously existing issues,such as welding cracks,large welding deformation,and severe welding residual stress,were solved to ensure good strength and ductility *** particular,with the same welding conditions,TX-80 LTT wire eliminates welding *** reduces the welding deformation no matter the base pretreatment of pre-setting angle or no pre-setting *** comparison,it was found that the microstructure at the TX-80 weld is mainly composed of martensite and a small amount of retained *** contrast,the microstructure of the ER 307Si weld consists of a large amount of austenite and a small amount of skeleton-like *** variation trend of residual stress and microhardness from the weld to the base were investigated and compared with the mechanical properties of base *** TX-80 and the ER 307Si tensile samples elongation is 6.76%and 6.01%,while the ultimate tensile strengths are 877 and 667 MPa,*** average impact toughness at room temperature of the ER 307Si weld is 143.9 J/cm^(2),much higher than that of the TX-80 weld,which is only 36.7 J/cm^(2).The relationship between impact and tensile properties with microstructure species and distribution was *** addition,the fracture surface of the tensile and the impact samples was observed and *** dimples,fewer pores,larger radiation zone,and shear lips of TX-80 samples indicate better tensile ductility and worse impact toughness than those of ER 307Si weld.

关键词： Low-transformation-temperature material 22SiMn2TiB steel Welding deformation Residual stress Martensitic transformation Mechanical property

谈“皮格马利翁效应”在高校田径训练中的运用

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体育科学 2000年第3期20卷 83-84页

作者：钱杰安徽财贸学院体育教研室安徽蚌埠233041

提出了“皮格马利翁效应”在高校田径训练中积极的作用。认为及时把握队员心态 ,适时表现出教练员的期待 ,启发队员寻找优化训练感觉 ,尽快形成新的期待目标 ,以及与队员们共同研究训练计划和方法等 ,有利于形成双向期待 ,并产生积极的... 详细信息

提出了“皮格马利翁效应”在高校田径训练中积极的作用。认为及时把握队员心态 ,适时表现出教练员的期待 ,启发队员寻找优化训练感觉 ,尽快形成新的期待目标 ,以及与队员们共同研究训练计划和方法等 ,有利于形成双向期待 ,并产生积极的“皮格马利翁效应”。

关键词：皮格马利翁效应田径高校训练计划训练方法

Effects of electrolyte balance on intestinal barrier, amino acid metabolism, and mTORC1 signaling pathway in piglets fed lowprotein diets

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Animal Nutrition 2024年第2期17卷 408-417页

作者： qian Lin Xiaodian Tu Xin Li Feiyang Gou Lin Ding Zeqing Lu jie Feng Yongfei Ying Caihong Hu College of Animal Sciences Zhejiang University Key Laboratory of Molecular Animal Nutrition (Zhejiang University) Ministry of Education Animal Husbandry Technology Promotion and Breeding Livestock and Poultry Monitoring Station of Zhejiang Province

A proper dietary electrolyte balance(dEB) is essential to ensure optimal growth performance of piglets. In the low-protein diet, this balance may be affected by the reduction of soybean meal and the inclusion of high levels of synthetic amino acids. The objective of this experiment was to evaluate the optimal dEB of low-protein diets and its impact on the growth performance of piglets. A total of 108 piglets(initial age of35 d) were randomly divided into 3 groups with 6 replicates of 6 pigs each as follows: low electrolyte diet(LE group; dEB = 150 milliequivalents [mEq]/kg); medium electrolyte diet(ME group; dEB = 250 m Eq/kg);high electrolyte diet(HE group; d EB = 350 mEq/kg). Results indicated that the LE and HE diet significantly decreased the average daily gain, average daily feed intake, and crude protein digestibility(P < 0.05) in piglets. Meanwhile, LE diets disrupted the structural integrity of the piglets' intestines and decreased jejunal tight junction protein(occludin and claudin-1) expression(P < 0.05). Additionally, the pH and HCO3 in the arterial blood of piglets in the LE group were lower than those in the ME and HE groups(P < 0.05).Interestingly, the LE diet significantly increased lysine content in piglet serum(P < 0.05), decreased the levels of arginine, leucine, glutamic acid, and alanine(P < 0.05), and inhibited the mammalian target of rapamycin complex 1(mTORC1) pathway by decreasing the phosphorylation abundance of key proteins. In summary, the dietary electrolyte imbalance could inhibit the activation of the mTORC1 signaling pathway,which might be a key factor in the influence of the dEB on piglet growth performance and intestinal ***, second-order polynomial(quadratic) regression analysis showed that the optimal dEB of piglets in the low-protein diet was 250 to 265 mEq/kg.

关键词： Low-protein Dietary electrolyte balance Piglet Mammalian target of rapamycin complex 1

Boosting propane dehydrogenation of defective S-1 stabilized singleatom Pt and ZnO catalysts via coordination environment regulation

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Nano Research 2024年第7期17卷 5884-5896页

作者： Fuwen Yang jie Zhang Jinwei Chen Gang Wang Tong Yu qian Li Zongbo Shi Qiushi Sun Runsheng Zhuo Ruilin Wang College of Materials Science and Engineering Sichuan UniversityChengdu 610065China Engineering Research Center of Alternative Energy Materials&Devices Ministry of EducationSichuan UniversityChengdu 610065China REZEL Catalysts Corporation Shanghai 200120China

Pt single atoms catalysts with precise coordination environment and high stability are expected to achieve high performance of propane dehydrogenation(PDH).In this work,an innovative synthetic strategy is proposed to construct the S-1@0.1Pt9Zn@DPS-1 nanocomposite as a highly efficient PDH *** engineering is applied to induce the formation of defective porous silicalite-1(DPS-1),which is favorable for achieving the uniformly distributed ZnO *** ZnO nanoclusters were further served as anchoring sites to stabilize the isolated Pt *** structural characterization revealed that penta-O coordinated Pt single atom coupled with ZnO nanoclusters decorated on the ***,the atomically dispersed Pt atoms with the ideal coordination environment could act as the predominant active sites for PDH *** expected,the optimal S-1@0.1Pt9Zn@DPS-1 catalyst delivered an excellent PDH performance(propane conversion of 40.7%,propylene selectivity of 97.5%)and good cycling regeneration *** work provides a new way for improving the activity and stability of catalysts in the field of industrial catalysts.

关键词： defect engineering single platinum atom coordination environment propane dehydrogenation propylene

A new three-stage evolution model for millimeter to centimeter wavelength outbursts in BL Lacertae

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Research in Astronomy and Astrophysics 2010年第1期10卷 47-66页

作者： Shan-jie qian T. P. Krichbaum A. Witzel J. A. Zensus Xi-Zhen Zhang H. Ungerechts H. D. Aller M. E Aller National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China Max-Planck-Institut fur Radioastronomie Auf dem Hugel 69 Bonn 53121 Germany Instituto Radioastronomia Milimetrica （IRAM） Avenida Divina Pastora 7 Nficleo Central E-18012 Granada Spain Department of Astronomy University of Michigan Ann Arbor M148109-1042 USA

The multi-frequency light curves of BL Lacertae during 1997.5 - 1999.5 have been modeled by four outbursts, each having a 3-stage evolution in the （Sm, vm） plane with distinct rising-plateau-decaying phases. It is shown that the observed light curves can be well fitted for the eight frequencies from 350 GHz to 4.8 GHz. The main characteristics of the model-fitting are; （1） the outbursts are found to have very flat spectra with an optically thin spectral index α （defined as Sv α u^-α） of about 0.15. This is consistent with the results previously obtained by Valtaoja et al. （1992）; （2） it is found that there is no spectral flattening between the rising-plateau phase and the decay phase. In other words, the optically thin spectral index does not change from the rising-plateau phase to the decay phase. These features are in contrast to the 3-stage shocked-in-jet model proposed by Marscher ＆ Gear （1985） for submm- IR-optical flares, in which a spectral flattening of △α = 0.5 is predicted when a transition occurs from the Compton/synchrotron phase （or rising-plateau phase） to the adiabatic phase （or decay phase） with α≥ 0.5 for the shock being non-radiative. We propose a new model to interpret the fitting results, suggesting that the 3-stage evolution of the mm-cm outbursts in BL Lacertae may be related to the process of shock formation and propagation in a highly collimated jet （for example, a ＇parabolic＇ jet）. In particular, during the rising phase, the thickness of the synchrotron-radiating region created by the shock may rapidly increase with time （relative to the jet width） due to the rapid injection of relativistic electrons and a magnetic field, and this leads to the observed behavior that the turnover flux density Sm rapidly increases while the turnover frequency um decreases. In the decay phase, the emitting plasma enters into a free expansion regime without further injection of relativistic electrons and a magnetic field （for example, when a transition from a co

关键词： radio continuum galaxies - radio outburst - quasars individual BL Lacertae