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“Coffee ring” controlment in spray prepared >19% efficiency Cs_(0.19)FA_(0.81)PbI_(2.5)Br_(0.5) perovskite solar cells

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Journal of Energy Chemistry 2022年第4期31卷 201-208页

作者： xinxin Yu Jing Li Yanping Mo Tianxing Xiang Zhiliang Ku Fuzhi Huang Fei Long Yong Peng Yi-Bing cheng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Zhongshan 528437GuangdongChina College of Materials Science and Engineering Guilin University of TechnologyGuilin 541004GuangxiChina

Achieving high-quality perovskite films with uniform morphology and homogeneous crystallinity is challenging owing to the coffee ring effect(CRE) in the spray-coating technologies. In this study, an evaporation/spray-coating two-step deposition method is used to fabricate Cs_(0.19)FA_(0.81)PbI_(2.5)Br_(0.5)light harvesters for perovskite solar cells(PSCs). Considering the solid–liquid reaction, we establish a reaction-dependent regulating strategy that inhibits CRE successfully and prepare a high-quality perovskite layer, wherein the solvent for the FAI/Br solution during the spraying process is changed from isopropanol to n-butyl alcohol(NBA). The retarded-drying-enhanced spreading of the NBA solution inhibits contact line pinning to suppress the capillary flows and increases the reaction between metal halides(CsI/PbI_(2)) and organic salts(FAI/Br), which result in a reduction in the accumulation of solutes in the periphery effectively inhibiting CRE. Consequently, we obtain a high performance Cs_(0.19)FA_(0.81)PbI_(2.5)Br_(0.5) PSC with a power conversion efficiency(PCE) of 19.17%. An enlarged perovskite film(10 × 10 cm^(2)) containing 40 sub-cells is prepared. The average PCE of these devices is 18.33 ± 0.56%, proving the reliability of the "coffee ring" regulating strategy. This study provides an effective approach for CRE controlment in spraying technology to achieve high repeatability devices with good performance.

关键词： Cs_(0.19)FA_(0.81)PbI_(2.5)Br_(0.5)perovskite solar cells Spray coating Coffee ring effect Reaction-dependent regulating strategy

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翻转课堂在《农产品经营与管理》教学实践中的应用

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安徽科技学院学报 2019年第2期33卷 99-102页

作者：任兰天郝冰邵庆勤程昕昕许侠黄保宏安徽科技学院安徽凤阳233100 安徽省宿州工业学校安徽宿州234000

《农产品经营与管理》是农学类专业的一门核心课程,随着时代的不断发展,许多新的经营与管理方法不断涌现,传统教学模式已不能满足教学质量、学生经营与管理能力的现实要求。本文从《农产品经营与管理》课程教学的现状和问题出发,基于翻... 详细信息

《农产品经营与管理》是农学类专业的一门核心课程,随着时代的不断发展,许多新的经营与管理方法不断涌现,传统教学模式已不能满足教学质量、学生经营与管理能力的现实要求。本文从《农产品经营与管理》课程教学的现状和问题出发,基于翻转课堂的理念,根据应用型人才培养要求对《农产品经营与管理》的教学改革和教学模式进行了研究,旨在提高教学效率和教学质量,促进今后学生经营与管理能力的提升。

关键词：农产品经营与管理翻转课堂教学质量

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Stretchable Luminescent Perovskite‑Polymer Hydrogels for Visual‑Digital Wearable Strain Sensor Textiles

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Advanced Fiber Materials 2023年第5期5卷 1671-1684页

作者： xinxin Li Long Chen Shuanglong Yuan Hua Tong Qilin cheng Huidan Zeng Lei Wei Qichong Zhang Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China Key Laboratory of Multifunctional Nanomaterials and Smart Systems Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore

The integration of a display function with wearable interactive sensors offers a promising way to synchronously detect physiological signals and visualize pressure/***,combining these two functions in a strain sensor textile is a longstanding challenge due to the physical separation of sensors and display ***,a water-stable luminescent perovskite hydrogel(emission band approximately 25 nm)is constructed by blending as-prepared CsPbBr_(3)@PbBr(OH)with stretchable polyacrylamide(PAM)*** facile introduction of CsPbBr_(3)@PbBr(OH)endows the hydrogels with excellent optical properties and a high mechanical strength of 51.3 kPa at a fracture strain of 740%.Interestingly,the resulting hydrogels retain bright green fluorescence under conditions including water,ultraviolet light,and extensive stretching(>700%).As a proof-of-concept,a novel wearable stretchable strain sensor textile based on these hydrogels is developed,and it displays visual-digital synergetic strain detection *** can perceive various motions on the human body in real time with electronic output signals from changes in resistance and simultaneously readable optical output signals,whether on land or *** work provides a meaningful guide to rationally design perovskite hydrogels and accelerates the development of wearable visual-digital strain sensor textiles.

关键词： Metal halide perovskites Stretchable luminescent hydrogels Strain sensor textiles Amphibious Visualdigital synergies

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High special surface area and“warm light”responsive ZnO:Synthesis mechanism,application and optimization

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Bioactive Materials 2022年第1期7卷 181-191页

作者： xinxin Miao Fen Yu Kuan Liu Zhongsheng Lv Jianjian Deng Tianlong Wu Xinyan cheng Wei Zhang Xigao cheng Xiaolei Wang Department of Orthopaedic Surgery The Second Affiliated Hospital of Nanchang UniversityNanchangJiangxi330006PR China College of Chemistry NanChang UniversityNanChangJiangxi330031PR China Institute of Translational Medicine Nanchang UniversityNanchangJiangxi330031PR China Jiangxi Key Laboratory of Nanobiomaterials Institute of Advanced MaterialsEast China Jiaotong UniversityNanchangJiangxi330013PR China

In this study,a new series of zinc oxide(ZnO)with high specific surface area and narrow energy band gap are prepared using a facile microwave-induced *** corresponding formation mechanism is also discussed for the first *** to the introduction of C,these ZnO can be excited by long wave temperature light without harmful short wave radiation,and play an efficient photocatalytic *** valuable property fundamentally improves the biological safety of its photocatalytic ***,taking teeth whitening as an example,the photocatalytic performance of ZnO is ***“pure”yellow light-emitting diode(PYLED)with high biological safety is used as the excitation *** is found that this method could effectively remove pigment on the tooth surface through physical *** addition,these ZnO could generate active oxygen to degrade the pigment on the tooth surface under the irradiation of yellow *** further optimization of these“warm light”responsive ZnO is also discussed in this systematical study,which could open up new opportunities in biomedical field.

关键词： ZnO Photocatalysis Yellow light Teeth whitening

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Efficient control of chronic LCMV infection by a CD4 T cell epitope-based heterologous prime-boost vaccination in a murine model

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Cellular & Molecular Immunology 2018年第9期15卷 815-826页

作者： Ran He xinxin Yang cheng Liu Xiangyu Chen Lin Wang Minglu Xiao Jianqiang Ye Yuzhang Wu Lilin Ye Center for Clinical Laboratory Zhujiang HospitalSouthern Medical UniversityGuangzhou 510515China Institute of Immunology Medical SchoolThird Military Medical UniversityChongqing 400038China Ministry of Education Key Laboratory for Avian Preventive Medicine College of Veterinary MedicineYangzhou UniversityYangzhouJiangsu 225009China Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses YangzhouJiangsu 225009China

CD4^(+)T cells are essential for sustaining CD8^(+)T cell responses during a chronic *** adoptive transfer of virus-specific CD4^(+)T cells has been shown to efficiently rescue exhausted CD8^(+)T ***,the question of whether endogenous virus-specific CD4^(+)T cell responses can be enhanced by certain vaccination strategies and subsequently reinvigorate exhausted CD8^(+)T cells remains *** this study,we developed a CD4^(+)T cell epitope-based heterologous prime-boost immunization strategy and examined the efficacy of this strategy using a mouse model of chronic lymphocytic choriomeningitis virus(LCMV)*** primed chronically LCMV-infected mice with a Listeria monocytogenes vector that expressed the LCMV glycoprotein-specific I-Ab-restricted CD4^(+)T cell epitope GP61–80(LM-GP61)and subsequently boosted the primed mice with an influenza virus A(PR8 strain)vector that expressed the same CD4^(+)T cell epitope(IAV-GP61).This heterologous prime-boost vaccination strategy elicited strong anti-viral CD4^(+)T cell responses,which further improved both the quantity and quality of the virusspecific CD8^(+)T cells and led to better control of the viral *** combination of this strategy and the blockade of the programmed cell death-1(PD-1)inhibitory pathway further enhanced the anti-viral CD8^(+)T cell responses and viral ***,a heterologous prime-boost immunization that selectively induces virus-specific CD4^(+)T cell responses in conjunction with blockade of the inhibitory pathway may represent a promising therapeutic approach to treating patients with chronic viral infections.

关键词： CD4^(+)T cell epitope CD8^(+)T cell exhaustion chronic viral infection prime-boost

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Immigration,transformation,and emission control of sulfur and nitrogen during gasification of MSW:Fundamental and engineering review

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Carbon Resources Conversion 2023年第3期6卷 184-204页

作者： Shuchao cheng Xueyu Ding xinxin Dong Mengjie Zhang Xinqi Tian Yang Liu Yaji Huang Baosheng Jin Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy&EnvironmentSoutheast UniversityNanjing 210096People’s Republic of China National Engineering Research Center of Turbo-generator Vibration Southeast UniversityNanjing 210096People’s Republic of China Jiangsu Environmental Protection Group Co. LtdNanjing 210019People’s Republic of China

This paper proposes a comprehensive summary and analysis of an important issue during municipal solid waste(MSW)gasification-sulfur and nitrogen *** provides an overview of the fundamentals of MSW and the basic aspects of nitrogen and sulfur *** characteristics of immigration,transformation and distribution during gasification with control solutions in realized or potential engineering are also *** analysis indicates that the complete scenario of the occurrence form of sulfur and nitrogen elements in MSW is difficult to obtain,owing to the diverse sources and complicated ***,with the assistance of advanced characterization and quantification methods(XPS,XRD,TG-FTIR,et al.),the common sulfur-and nitrogen-containing compounds in both organic and inorganic states can be *** of gasification conditions can regulate the transformation of these elements for emission *** multiple pollutants including H_(2)S,SO_(x),COS,NH_(3),HCN and NO_(x)cannot be eliminated by one-step treatment but a combination of adsorption and catalytic treatments may realize the control *** research aims to benefit meeting emission standards during MSW gasification and to provide a reference for other processes such as incineration,pyrolysis and other feedstocks like biomass and refuse derived fuel(RDF).

关键词： Municipal solid waste Gasification Sulfur/nitrogen pollutants Mechanism Distribution Removal

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LabVIEW-based auto-timing counts virtual instrument system with ORTEC 974 Counter/Timer

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Nuclear Science and Techniques 2009年第5期20卷 307-311页

作者： YAN Jie LIU Rong LI cheng JIANG Li LU xinxin ZHU Tonghua WANG Mei WEN Zhongwei LIN Jufang Department of Modern Physics University of Science and Technology of China Hefei 230026 China Institute of Nuclear Physics and Chemistry Chinese Academy of Engineering Physics Mianyang 621900 China

In order to achieve the auto-timing counts measurement of nuclear radiation using ORTEC 974 Counter/Timer, an auto-timing counts virtual instrument system based on the LabVIEW virtual instrument development platform and GPIB instrument control and transmission bus protocol is designed in this paper. By introducing software timing technique, the minimum time base of factory setting improves from 0.1 s to 0.03 s. The timing counts performance and longtime stability are also discussed in detail. The automatic data recording and saving facilitates data analysis and processing. Its real-time display and statistic function is very convenient for monitoring the nuclear radiation.

关键词： ORTEC 原子能放射 GPIB

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不同类型群落下闽楠的生长与植物物种多样性分析

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林业与环境科学 2021年第2期37卷 55-61页

作者：陈富强程欣欣洪维李仕裕徐蕾叶秋慧邢福武王发国广东省龙眼洞林场广东广州510520 仲恺农业工程学院园艺园林学院广东广州510225 中国科学院华南植物园/广东省应用植物学重点实验室广东广州510650

应用植被调查样地法研究广州市龙眼洞林场筲箕窝工区内不同群落(山乌桕Triadica cochinchinensis-闽楠Phoebe bournei群落、山乌桕-樟树Cinnamomum camphora-闽楠群落、闽楠-楝叶吴茱萸Tetradium glabrifolium群落)中闽楠的生长情况以... 详细信息

应用植被调查样地法研究广州市龙眼洞林场筲箕窝工区内不同群落(山乌桕Triadica cochinchinensis-闽楠Phoebe bournei群落、山乌桕-樟树Cinnamomum camphora-闽楠群落、闽楠-楝叶吴茱萸Tetradium glabrifolium群落)中闽楠的生长情况以及物种组成与生物多样性。结果表明:12a的闽楠在闽楠-楝叶吴茱萸群落中生长最好,重要值最高,平均树高达6.42 m,平均胸径达5.67 cm。对于各群落物种组成分析:山乌桕-闽楠群落有48科81属97种;山乌桕-樟树-闽楠群落有46科75属85种;闽楠-楝叶吴茱萸群落有29科38属40种,物种组成表现出山乌桕-闽楠群落>山乌桕-樟树-闽楠群落>闽楠-楝叶吴茱萸群落。多样性分析:物种数、Margalef丰富度指数、Shannon-Wiener多样性指数、Simpson生态优势度指数、P均匀度指数在3个群落类型中均表现出灌草层>乔木层,表明灌草层的物种数较多,并且较为复杂,更具有生态优势度,且在群落分布中更均匀;乔木层中的物种数较少,复杂程度较低,分布最不均匀。

关键词：闽楠群落物种多样性广东省龙眼洞林场

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具身运动想象联合常规康复对卒中后感觉运动网络影响的研究

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中华脑科疾病与康复杂志（电子版） 2022年第4期12卷 196-203页

作者：程欣欣刘婉高润饶江俞佳雯张传文高黎明张玲玲刘莉南京医科大学附属脑科医院康复医学科南京210029

目的探讨具身认知视角下的运动想象疗法(以下简称具身运动想象)联合常规康复对首发卒中偏瘫患者感觉运动网络(SMN)的影响及相关神经机制。方法选取2020年1~6月于南京医科大学附属脑科医院神经内科及康复医学科住院的15例首发卒中偏瘫患... 详细信息

目的探讨具身认知视角下的运动想象疗法(以下简称具身运动想象)联合常规康复对首发卒中偏瘫患者感觉运动网络(SMN)的影响及相关神经机制。方法选取2020年1~6月于南京医科大学附属脑科医院神经内科及康复医学科住院的15例首发卒中偏瘫患者纳入治疗组,进行具身运动想象联合常规康复治疗;同时,选取15名年龄、性别及文化程度和治疗组相匹配的健康受试者作为对照组。治疗组患者治疗前和治疗4周后均进行静息态功能磁共振(rs-fMRI)扫描,记录Fugl-Meyer运动功能评定(FMA)量表评分和改良Barthel指数(MBI)评分。采用rs-fMRI构建SMN,并且通过对治疗组治疗前后以及对照组的SMN脑区进行功能连接(FC)分析来研究网络内的变化,并采用基于种子点的患侧初级感觉运动皮层(S1M1)与全脑间FC的变化情况,研究S1M1与全脑之间的FC重组。结果治疗后,治疗组FMA评分由(65.67±16.95)分升高到(149.58±17.95)分,MBI评分由(24.17±8.21)分升高到(65.00±8.79)分,差异均有统计学意义(P<0.05)。SMN内FC显示,治疗前,治疗组较对照组双侧S1M1、患侧S1M1和辅助运动区(SMA)、患侧S1M1和小脑、SMA和小脑间FC降低,差异有统计学意义(P<0.05)。治疗组治疗后患侧S1M1和小脑的FC较治疗前增强,差异有统计学意义(P<0.05)。基于种子点的全脑FC分析显示,治疗前,治疗组患侧S1M1和健侧距状回、患侧中央后回FC减弱,差异有统计学意义(P<0.05);治疗后患侧S1M1和患侧额中回、健侧小脑FC较治疗前增强,差异有统计学意义(P<0.05)。相关性分析发现,患侧S1M1和小脑的FC连接强度增量与FMA增量有中度相关性(r=0.581,P=0.023),与MBI增量有强相关性(r=0.757,P=0.002)。结论具身运动想象联合常规康复可改善首发卒中偏瘫患者的运动功能和日常生活能力,相关脑重塑机制可能是其可显著修复SMN网络内和全脑的FC,增加与认知相关的脑区FC。

关键词：卒中具身运动想象静息态功能磁共振感觉运动网络

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Sphingosine-1-phosphate,a novel TREM2 ligand,promotes microglial phagocytosis to protect against ischemic brain injury

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Acta Pharmaceutica Sinica B 2022年第4期12卷 1885-1898页

作者： Tengfei Xue Juan Ji Yuqin Sun xinxin Huang Zhenyu Cai Jin Yang Wei Guo Ruobing Guo Hong cheng Xiulan Sun Department of Pharmacology Neuroprotective Drug Discovery Key LaboratoryJiangsu Key Laboratory of NeurodegenerationNanjing Medical UniversityNanjing 211166China Nanjing University of Chinese Medicine the Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210004China The First Affiliated Hospital of Nanjing Medical University Nanjing 210029China

The mechanism of sphingosine-1-phosphate(S1P)-mediated phagocytosis remains ***,we found that S1P or FTY720(an analog of S1P)promoted microglial phagocytosis in stroke independent of ***,we used computer simulation of molecular docking to predict that S1P might be a ligand for triggering receptor expressed on myeloid cells 2(TREM2).Next,microscale thermophoresis(MST),surface plasmon resonance(SPR)and liquid chromatography–tandem mass spectrometry(LC–MS/MS)were performed to reveal that S1P was a novel TREM2 ***,we confirmed the pro-phagocytosis of S1P targeting in Trem2-Dap12 transfected CHO cells and TREM2 knockdown *** mutation analysis showed that D104 was the critical binding ***2^(−/−)mice were used to demonstrate the role of S1P-induced phagocytosis targeting on TREM2 in protecting against ischemic brain ***,further studies revealed that apolipoprotein E(APOE)loaded with S1P was released by microglia and bound to apoptotic neurons via LDL receptor related protein 1B(LRP1B)and thereby induced microglia to phagocytose apoptotic ***,the present work reveals for the first time that S1P acts as a novel endogenous ligand of TREM2 to effectively promote microglial *** findings provide a new lead compound for developing immunomodulator targeting on TREM2.

关键词： S1P TREM2 Microglia Phagocytosis Stroke APOE LRP1B Apoptotic neurons

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