检索结果-南通市图书馆

Modulation on electrostatic potential to build a firm bridge at NiO_(x)/perovskite interface for efficient and stable perovskite solar cells

引用

Journal of Energy Chemistry 2024年第9期96卷 249-258页

作者： Xiangbao Yuan Xufeng ling Hongyu Wang Chengxia Shen Ru li Yehao Deng shijian Chen Chongqing Key Laboratory of Interface Physics in Energy Conversion College of PhysicsChongqing UniversityChongqing 401331China Key Laboratory of Optoelectronic Technology&Systems(Ministry of Education) College of Optoelectronic EngineeringChongqing UniversityChongqing 400044China Center of Modern Physics Institute for Smart City of Chongqing University in LiyangLiyang 213300JiangsuChina

The NiO_(x)/perovskite interface in NiO_(x)-based inverted perovskite solar cells(PSCs)is one of the main issues that restrict device performance and long-term stability,as the unwanted interfacial defects and undesirable redox reactions cause severe interfacial non-radiative recombination and open-circuit voltage(Voc)***,a series of self-assembled molecules(SAMs)are employed to bind,bridge,and stabilize the NiO_(x)/perovskite interface by regulating the electrostatic *** on systematically theoretical and experimental studies,4-pyrazolecarboxylic acid(4-PCA)is proven as an efficient molecule to simultaneously passivate the NiO_(x)and perovskite surface traps,release the interfacial tensile stress as well as quench the detrimental interface redox reactions,thus effectively suppressing the interfacial non-radiative recombination and enhancing the quality of perovskite ***,the PSCs with 4-PCA treatment exhibited an eminently increased Voc,leading to a significant increase in power conversion efficiency from 21.28%to 23.77%.Furthermore,the unencapsulated devices maintain 92.6%and 81.3%of their initial PCEs after storing in air with a relative humidity of 20%–30%for 1000 h and heating at 65℃for 500 h in a N_(2)-filled glovebox,respectively.

关键词： Perovskite solar cells Nickel oxide Interface defects passivation Redox reaction Nonradiative recombination

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Decreased expression of m6A demethylase ALKBH5 in decidua contributes to preeclampsia via m6A-CORIN-HuR pathway

引用

Genes & Diseases 2023年第3期10卷 650-653页

作者： Jieqiong Yang Jing Tong Hongwanyu li shijian Lv Weiya li Cong Zhang Wen Di Department of Obstetrics and Gynecology Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Center for Reproductive Medicine Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200135China Shanghai Key Laboratory of Gynecologic Oncology Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200135China Shandong Provincial Key Laboratory of Animal Resistance Biology College of Life SciencesShandong Normal UniversityShandong 250014China State Key Laboratory of Oncogenes and Related Genes Shanghai Cancer InstituteRen Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China

Preeclampsia(PE)is a pregnancy-specific hypertensive disorder which poses a severe threat to maternal and fetal health.1 Defective decidualization may contribute to PE.^(2) N6-methyladenosine(m6A)is associated with various *** regulatory mechanism of m6A in PE is not well established to *** aimed to identify differentially expressed m6A and explore its regulatory role in the pathogenesis of PE.

关键词： hypertensive m6A pregnancy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Influence of the Alkali Treatment of HZSM-5 Zeolite on Catalytic Performance of PtSn-Based Catalyst for Propane Dehydrogenation

引用

China Petroleum Processing & Petrochemical Technology 2013年第2期15卷 11-18页

作者： Huang li Zhou shijian Zhou Yuming Zhang Yiwei Xu Jun Wang li School of Chemistry and Chemical Engineering Southeast University Nanjing Wolaide Energy Technology Co. LTD

The porous material ATZ with micro-mesopore hierarchical porosity was prepared by alkali treatment of parent HZSM-5 zeolite and applied for propane dehydrogenation. The zeolite samples were characterized by XRD, N2- physisorption, and NH3-TPD analysis. The results showed that the alkali treatment can modify the physicochemical prop- erties of HZSM-5 zeolite. In this case, the porous material ATZ showed larger extemal surface area with less acid sites as compared to the HZSM-5 zeolite. It was found out that the alkali treatment of HZSM-5 zeolite could promote the catalytic performance of PtSn/ATZ catalyst. The possible reason was ascribed to the low acidity of ATZ. Furthermore, the presence of mesopores could reduce the carbon deposits on the metallic surface, which was also favorable for the dehydrogenation reaction.

关键词： HZSM-5 zeolite alkali-treatment propane dehydrogenation propene

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Dependence of Plastic Stability on 3D Interface Layer in Nanolaminated Materials

引用

Acta Metallurgica Sinica(English Letters) 2022年第11期35卷 1759-1764页

作者： Shuimiao Jiang lichen Bai Qi An Zhe Yan Weiming li Kaisheng Ming shijian Zheng Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei Universityof TechnologyTianjin 300130China State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of TechnologyTianjin 300130China

The nanolaminated materials generally exhibit poor plasticity due to the fast onset of shear *** interface structure is an eff ective approach for enhancing plasticity via postponing or suppressing the shear ***,we introduce 4 nm thick CuNb 3D amorphous interface layers and Nb 3D crystalline interface layers in Cu nanolaminated materials,*** situ micro-pillar compression tests show that samples with crystalline interface layers exhibit shear instability,while the samples with amorphous interface layers display uniform *** the plastic deformation of the singlecrystal crystalline interface layer is anisotropic,except for well-aligned slip systems,dislocations on other slip systems have a poor ability to transmit the 3D crystalline interface layer,leading to localized dislocations pileups and shear *** contrast,the amorphous interface layer which is plastically isotropic accommodates dislocations from arbitrary slip systems of the matrix,which can alleviate the stress concentrations at the interface,and thus suppresses the shear instability.

关键词： Multilayers Interface Plastic deformation Dislocation Amorphous interface

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

放射科住院医师规范化培训师资队伍现状及360度评估应用的探索

引用

中国毕业后医学教育 2024年第2期8卷 89-91,96页

作者：张玉珍李士建崔雪娥刘欢欢刘明汪登斌上海交通大学医学院附属新华医院放射科上海200092

住院医师规范化培训(简称住培)师资队伍的质量及水平是影响培训效果的关键因素,放射科作为住培专业基地及临床辅助轮转学科,其师资队伍管理及带教规范执行情况对提高临床各专业住培质量具有重要影响。该文基于上海交通大学医学院附属新... 详细信息

住院医师规范化培训(简称住培)师资队伍的质量及水平是影响培训效果的关键因素,放射科作为住培专业基地及临床辅助轮转学科,其师资队伍管理及带教规范执行情况对提高临床各专业住培质量具有重要影响。该文基于上海交通大学医学院附属新华医院放射科专业基地目前师资队伍现状,结合国家住培制度,应用其自主设计的线上360度师资评估法,进行同行医师,上、下级医师,医技护理,住院医师互评及自评等多维度师资评估的实践探索,旨在规范放射科师资队伍管理,提升师资队伍带教水平与能力,保证住培教学质量。

关键词：住院医师规范化培训放射科师资队伍 360度评估考核评估

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CBL联合PBL教学在非影像专业住院医师放射科住培中的应用

引用

中国毕业后医学教育 2023年第4期7卷 293-297页

作者：储彩婷张玉珍李士健刘欢欢李文华高成金汪登斌上海交通大学医学院附属新华医院放射科上海200092 上海交通大学医学院附属新华医院急诊科上海200092

目的探讨基于以案例为基础的学习(case-based learning,CBL)教学法联合以问题为基础的学习(problem-based learning,PBL)教学法在非影像专业住院医师放射科住院医师规范化培训(简称住培)中的应用效果。方法采用试验对照方法,选取2019年... 详细信息

目的探讨基于以案例为基础的学习(case-based learning,CBL)教学法联合以问题为基础的学习(problem-based learning,PBL)教学法在非影像专业住院医师放射科住院医师规范化培训(简称住培)中的应用效果。方法采用试验对照方法,选取2019年1月至2019年12月上海交通大学医学院附属新华医院2018级120名非影像专业住院医师进行为期1个月的住培,单月参培对象为观察组(60人)采用CBL联合PBL模式培训,双月参培对象为对照组(60人)采用传统授课模式培训。课程结束后,分析两组住院医师的考试成绩及问卷调查结果。结果观察组住院医师的理论成绩和读片成绩分别为(48.8±2.2)分、(47.2±2.0)分,均高于对照组成绩(39.5±1.3)分、(37.9±1.7)分,差异均具有统计学意义(均P<0.05)。问卷调查结果显示,观察组与对照组相比,住院医师在建立影像诊断思路[53(88.3%)比41(68.3%)]、影像协助临床解决实际问题能力[50(83.3%)比40(66.7%)]、授课方式满意度[51(85%)比42(70%)]等方面,差异均具有统计学意义(均P<0.05)。结论CBL联合PBL教学模式不仅有效地引导住院医师善于运用“影像”证据明确诊断、提升其临床综合能力,还明显提高了指导医师的教学水平。该教学模式在非影像专业住院医师放射科住培中具有较好的应用效果,值得推广。

关键词：住院医师规范化培训放射科 CBL PBL

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

医学检验专业免疫检验岗位实习生带教模式探索

引用

标记免疫分析与临床 2023年第9期30卷 1614-1616页

作者：方伟彭兰欢陈柳勤廖玉琴李世坚陆慧琼李珩南方医科大学附属广东省人民医院(广东省医学科学院)检验科广东广州510000

在新医科背景下,医学检验专业免疫检验方向的实习生带教目标逐渐由原来的培养检验医师变为培养检验技师。为适应时代的变化本文通过制定实习计划、改变教学方法,促使实习生自主学习,通过引入翻转课堂,激发实习生学习热情,以实际案例为... 详细信息

在新医科背景下,医学检验专业免疫检验方向的实习生带教目标逐渐由原来的培养检验医师变为培养检验技师。为适应时代的变化本文通过制定实习计划、改变教学方法,促使实习生自主学习,通过引入翻转课堂,激发实习生学习热情,以实际案例为引导让实习生将课堂理论融入实践,通过举办案例竞赛检验实习生对实习知识的掌握情况,通过导师制独立带教方式将枯燥重复的实习操作变为检验实习生自身能力的个性考核,进而提升实习生在带教活动中的自信心及成就感,为达成教学目标奠定基础。

关键词：实践教学医学检验技术医学教育

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Strontium Addition to Platinum Catalyst for Propane Dehydrogenation

引用

China Petroleum Processing & Petrochemical Technology 2012年第3期14卷 75-82页

作者： Huang li Zhou shijian Zhou Yuming Zhang Yiwei Zhang Shaobo Xu Jun School of Chemistry and Chemical Engineering Southeast University Nanjing Wolaide Energy Technology Co. LTD

PtSnSr/HZSM-5 catalysts with different amounts of strontium were prepared by sequential impregnation method, and characterized by BET analysis, TEM, NH3-TPD, Hz-TPR, TPO and TG techniques. The results showed that the addition of strontium could modify the characteristics and properties of both acid function and metal function of Pt-Sn-based cata- lysts. In this case, PtSnSr/HZSM-5 catalyst with an appropriate amount of Sr （1.2%） showed higher catalytic activity and lower amount of coke deposits than PtSn/HZSM-5 catalyst. However, excessive loading of Sr could facilitate the reduction of Sn, which was unfavorable to the reaction. Afterwards, 1.0 m% of Na was added into the PtSnSr（1.2%）/HZSM-5 catalyst to improve the catalytic performance in propane dehydrogenation, and this catalyst displayed the best catalytic performance during our experiments. After having been subjected to reaction for 5 h, the PtSnNa（1.0%）Sr（1,2%）/HZSM-5 catalyst had achieved a higher than 95% selectivity towards propene along with a corresponding propane conversion rate of 32.2%.

关键词： strontium propane dehydrogenation propene HZSM-5.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Polarization Control Operator for Polarized Electromagnetic Wave Designing

引用

Chinese Journal of Electronics 2024年第5期33卷 1253-1260页

作者： Shuo CUI Yaoyao li shijian ZHANG ling CHEN Cheng CAO Donglin SU School of Electronic and Information Engineering Beihang University Shenyuan Honors College Beihang University Research Institute for Frontier Science Beihang University

To describe and control the polarization state of electromagnetic waves, a polarization control operator of the complex vector form is proposed. Distinct from traditional descriptors, the proposed operator employs an angle parameter to configure the polarization state of the polarized wave. By setting the parameter in the proposed operator,the amplitude of the field components can be modified, resulting in changes in the magnitude and direction of the field vector, and thus realizing control of the polarization state of the electromagnetic wave. The physical meaning,orthogonal decomposition, and discrete property of the proposed operator are demonstrated through mathematical derivation. In the simulation examples, the polarization control operator with fixed and time-varying parameters is applied to the circularly polarized wave. The propagation waveform, the trajectory projection and the waveform cross section in different reception directions of the new electromagnetic waves are observed. The simulation results indicate that complex electromagnetic waves with more flexible polarization states can be obtained with the aid of the polarization operator.

关键词： Polarization Simulation Modulation Electromagnetic compatibility Vectors Trajectory Electromagnetics

来源：

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

新型自动流涂机在汽车模具铸造工艺上的应用

引用

中国铸造装备与技术 2023年第3期58卷 16-19页

作者：李世建于利媛王齐鲁李华栋张国靖姜辉范欣王杰济南二机床集团有限公司山东济南250022

介绍了一种自动流涂设备,主要用于消失模工艺的汽车模具的流涂工作。伴随汽车行业竞争的日益加剧,汽车生产厂为保持原有品牌的竞争力,会通过升级换代来吸引消费者,因此新车型研发生产周期变短,投放市场的频率加快,也导致上游汽车模具及... 详细信息

介绍了一种自动流涂设备,主要用于消失模工艺的汽车模具的流涂工作。伴随汽车行业竞争的日益加剧,汽车生产厂为保持原有品牌的竞争力,会通过升级换代来吸引消费者,因此新车型研发生产周期变短,投放市场的频率加快,也导致上游汽车模具及模具制造设备等行业的发展。

关键词：流涂气动隔膜泵专用夹具

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：