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High-performance asymmetric small molecular donor materials based on indenothiophene for solution-processed organic solar cells

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Journal of Energy Chemistry 2019年第4期28卷 27-33页

作者： Hua Tan Baoqi Wu Jun Zhang Qiang Tao Wenhong peng Weiguo zhu College of Chemistry Xiangtan University School of Materials Science and Engineering Changzhou University

Two novel asymmetric organic small molecules of IT(2FBT-T3Cz)_2and IT(2FBT-TT3Cz)_2with an indenothiophene(IT)central donor core,fluorinated benzothiadiazole(2FBT)as acceptor and 3-carbazole(Cz)unit as terminal group were designed and synthesized as the donor materials in organic solar cells(OSCs).The thermal,optical absorption,electrochemical property,hole–electron mobility,film morphology were thoroughly *** PC_(71)BM as an electron acceptor,without any additive and thermal annealing(TA)treatment,the IT(2FBT-T3Cz)_2-based cells showed a promising power conversion efficiency(PCE)of5.81%and the IT(2FBT-TT3Cz)_2-based cells exhibited a PCE of 4.39%.Our results demonstrate that the IT-based asymmetric small molecules can be developed as a promising class of donor materials for highperformance OSCs.

关键词： Organic solar cells Small molecular donor materials Indenothiophene Fluorination Carbazole

An Inexact Affine Scaling Levenberg-Marquardt Method Under Local Error Bound Conditions

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Acta Mathematicae Applicatae Sinica 2019年第4期35卷 830-844页

作者： zhu-jun WANG Li CAI Yi-fan SU Zhen peng School of Computational Science and Electronics Hunan Institute of Engineering Xiangtan 411104 China Shanghai Research Institute of Microwave Equipment Shanghai 200063 China School of Mathematics and Computational Science Xiangtan University Xiangtan 411104 China

We propose an inexact affine scaling Levenberg-Marquardt method for solving bound-constrained semismooth equations under the local error bound assumption which is much weaker than the standard nonsingularity condition. The affine scaling Levenberg-Marquardt equation is based on a minimization of the squared Euclidean norm of linearized model adding a quadratic affine scaling matrix to find a solution which belongs to the bounded constraints on variable. The global convergence and the superlinear convergence rate are *** results show that the new algorithm is efficient.

关键词： semismooth equation Levenberg-Marquardt method inexact method affine scaling local error bounds

基于稀疏实例与位置感知卷积的植物叶片实时分割方法

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江苏农业学报 2024年第3期40卷 478-489页

作者：任守纲朱勇杰顾兴健武鹏飞徐焕良南京农业大学人工智能学院江苏南京210095 国家信息农业工程技术中心江苏南京210095 新疆兴农网信息中心/新疆维吾尔自治区农业气象台新疆乌鲁木齐830002

植物叶片分割在高通量植物表型数据获取任务中起着关键作用。目前,多数植物叶片分割方法专注于提高模型分割精度,却忽视模型复杂度和推理速度。针对该问题,本研究提出一种基于稀疏实例激活与有效位置感知卷积的实例分割模型(ePaCC-Spars... 详细信息

植物叶片分割在高通量植物表型数据获取任务中起着关键作用。目前,多数植物叶片分割方法专注于提高模型分割精度,却忽视模型复杂度和推理速度。针对该问题,本研究提出一种基于稀疏实例激活与有效位置感知卷积的实例分割模型(ePaCC-SparseInst),实现植物叶片实时、精确分割。在ePaCC-SparseInst中引入1组稀疏实例激活图作为叶片对象表示方式,并使用二部图匹配算法实现预测对象与实例激活图的一一映射,从而避免了繁琐的非极大值抑制(Non-maximum suppression,NMS)运算,提高了模型的推理速度。此外,在实例分支中引入有效位置感知卷积(ePaCC)模块,在增大模型全局感受野的同时提高了模型的推理速度。在Komatsuna数据集上,ePaCC-SparseInst平均分割精度(AP)达到85.33%,每秒传输帧数达到43.52。在相同训练条件下,ePaCC-SparseInst的性能优于SparseInst、Mask R-CNN、CondInst等实例分割算法。此外在CVPPP A5数据集上,ePaCC-SparseInst较上述算法同样取得了更好的分割精度和推理速度。本研究提出的方法采用纯卷积的架构实现了叶片的实时分割,可以为在移动端或边缘设备上获取植物表型数据提供技术支持。

关键词：实例分割计算机视觉植物表型叶片分割

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一种罕见的胃癌-胃肝样腺癌

世界华人消化杂志 2024年第6期32卷 412-417页

作者：朱宇应力大连市第五人民医院窥镜室辽宁省大连市116000 大连医科大学附属第二医院消化内科辽宁省大连市116000

胃肝样腺癌(hepatoid adenocarcinoma of the stomach,HAS)是一种表现在肝脏外的罕见的特殊胃恶性肿瘤,与一般的胃癌不同,HAS的恶性程度高、侵袭性高,容易出现肝转移、淋巴转移、预后差,但是HAS的诊断、临床病理特征和预后仍有较大的争... 详细信息

胃肝样腺癌(hepatoid adenocarcinoma of the stomach,HAS)是一种表现在肝脏外的罕见的特殊胃恶性肿瘤,与一般的胃癌不同,HAS的恶性程度高、侵袭性高,容易出现肝转移、淋巴转移、预后差,但是HAS的诊断、临床病理特征和预后仍有较大的争论.为了帮助临床医生更了解这种胃癌,本文从甲胎蛋白的起源开始对HAS的诊断、临床病理特征及其预后等进行系统综述,从而为这种特殊胃癌的临床诊治提供建设性的意见及帮助.

关键词：胃肿瘤肝样腺癌甲胎蛋白临床病理诊断预后

Optimization of several surface treatment processes for alleviating fretting damage of a locking pin

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Friction 2022年第8期10卷 1217-1233页

作者： Jifan HE Zhenbing CAI Yanping REN Jinfang peng Jianhua LIU Minhao zhu School of Mechanical Engineering Southwest Jiaotong UniversityChengdu 610031China Traction Power State Key Laboratory Southwest Jiaotong UniversityChengdu 610031China School of Materials Science and Engineering Southwest Jiaotong UniversityChengdu 610031China

The operational safety and reliability of a variable gauge train are affected by the anti-fretting wear performance of the locking *** main purpose of this study is to optimize the surface treatment process for a locking pin material under actual service conditions to alleviate fretting *** on the two basic principles of surface strengthening and friction reduction,a substrate(AISI 4135 steel)surface was treated by laser quenching(LQ),plasma nitriding(PN),and bonded MoS2 *** fretting wear tests were conducted,and the wear behavior and damage mechanism of various treated surfaces were comprehensively *** results indicate that the wear resistances of the LQ-and PN-treated surfaces were significantly improved,and their main wear mechanisms were abrasive wear,delamination,and oxidation *** MoS_(2) coating exhibits the lowest friction coefficient and energy dissipation due to its self-lubricating property,but it incurs the highest wear rate and failure in the form of plastic ***,the rough compound layer with a high hardness on the PN-treated surface is conducive to the formation and maintenance of the third-body contact at the fretting interface,consequently resulting in a significant reduction in *** optimal surface treatment process for alleviating fretting damage of the locking pin is recommended via comprehensive evaluation,which provides a reference for the anti-fretting protection of related mechanical components.

关键词： locking pin fretting wear surface treatment dynamic response wear mechanism

Investigation on Fracture Properties of Single-Flawed Tunnel Model Under Medium-to-Low-Speed Impacts

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Acta Mechanica Solida Sinica 2020年第2期33卷 205-225页

作者： Lei Zhou Zheming zhu Ruifeng Liu Yong Fan Yuqing Dong peng Ying State Key Laboratory of Hydraulics and Mountain River Engineering College of Architecture and EnvironmentSichuan UniversityChengdu 610065China Key Laboratory of Deep Underground Science and Engineering(Ministry of Education) College of Architecture and EnvironmentSichuan UniversityChengdu 610065China

Dynamic fractures occur frequently in geophysical processes and engineering *** is thus essential to study crack and failure behaviors,such as crack time-to-initiation,crack growth rate and arrest period under dynamic *** this study,impact experiments were implemented by utilizing the single-flawed tunnel specimens under drop-hammer *** brittle materials,i.e.,green sandstone,red sandstone,black sandstone and polymethyl methacrylate,were selected to make single-flawed tunnel *** gauges and crack extension gauges were employed to measure the crack extension *** properties of crack growth rate,crack time-to-initiation and arrest period of these four brittle materials were discussed and *** corresponding numerical simulation was performed by using the commercial software *** numerical results of crack growth rate and crack time-to-initiation agreed with the impact test *** commercial software ABAQUS was applied to compute the dynamic stress intensity *** results show that both the dynamic initiation fracture toughness and the crack growth rate increase with the elastic moduli of these four types of brittle materials under the same loading conditions,whereas the crack time-to-initiation decreases with the increase in elastic moduli of the brittle materials under the same loading conditions.

关键词： Single-flawed tunnel Impact loading Crack growth rate Crack time-to-initiation Initiation fracture toughness

Self-propagating fabrication of 3D porous MXene-rGO film electrode for high-performance supercapacitors

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Journal of Energy Chemistry 2021年第1期30卷 243-250,I0008页

作者： Jiawei Miao Qizhen zhu Kangle Li peng Zhang Qian Zhao Bin Xu State Key Laboratory of Organic-Inorganic Composites Beijing Key Laboratory of Electrochemical Process and Technology for MaterialsBeijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan 250353ShandongChina

2D MXene nanosheets with metallic conductivity and high pseudo-capacitance are promising electrode materials for ***,MXene films can be directly used as electrodes for flexible ***,they suffer from sluggish ion transport due to self-restacking,causing limited electrochemical ***,a flexible 3D porous MXene film is fabricated by incorporating graphene oxide(GO) into MXene film followed by self-propagating *** self-propagating process is facile and effective,which can be accomplished in 1.25 s and result in 3D porous framework by releasing substantial gas *** the 3D porous structure provides massive ion-accessible active sites and promotes fast ion transport,the MXene-rGO films exhibit superior capacitance and rate *** the rGO content of 20%,the MXene-rGO-20 film delivers a high capacitance of 329.9 F g^(-1) at 5 mV s^(-1) in 3 M H2 SO4 electrolyte and remains 260.1 F g^(-1) at 1,000 mV s^(-1) as well as good ***,the initial capacitance is retained above 90% after 40,000 cycles at 100 A g^(-1),revealing good cycle *** work not only provides a high-performance flexible electrode for supercapacitors,but also proposes an efficient and time-saving strategy for constructing 3D structure from 2D materials.

关键词： Porous MXene Self-propagating Graphene Supercapacitors Rate performance

论音乐教育评价范式中科学主义与人文主义的离散和耦合

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中国音乐 2024年第3期 46-46,159,47-56页

作者：朱玉江安徽师范大学音乐学院

教育评价范式的选择及其运用,关乎学校教育改革的发展路向和成效。当下普通学校音乐教育的评价之中,科学主义范式居于主导地位,表现为评价价值的工具化、评价内容的知识化和情境无涉化、评价方法的实证化、评价标准的一元化。21世纪以来... 详细信息

教育评价范式的选择及其运用,关乎学校教育改革的发展路向和成效。当下普通学校音乐教育的评价之中,科学主义范式居于主导地位,表现为评价价值的工具化、评价内容的知识化和情境无涉化、评价方法的实证化、评价标准的一元化。21世纪以来,课程改革呈现人文主义教育评价范式倾向,因此有必要厘清音乐教育评价范式的科学主义与人文主义的关系。具言之,坚持辩证地认识二者的各自优势、局限及适用范围,进而确保评价中工具理性与价值理性的互补共融、结果与过程的动静交融、量化与质性的协同并举、显性知识与默会知识的融合共生。如此,便可从科学主义与人文主义的离散对立,走向耦合互补的新态势,从而归正学校音乐教育评价发展路向。

关键词：音乐教育评价范式科学主义人文主义离散耦合

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环境行政公益诉讼请求权基础研究

中国地质大学学报（社会科学版） 2024年第4期24卷 22-34页

作者：邓可祝安徽工业大学公共管理与法学院安徽马鞍山243002

环境公益诉讼的请求权基础,有环境法原则说、公益诉讼条款说和环境权说等,但这些请求权基础不够明确,尤其不符合我国环境行政公益诉讼的实践样态。环境行政公益诉讼,无法从作为原告的检察机关的权力角度来确定请求权基础,需要实现从原... 详细信息

环境公益诉讼的请求权基础,有环境法原则说、公益诉讼条款说和环境权说等,但这些请求权基础不够明确,尤其不符合我国环境行政公益诉讼的实践样态。环境行政公益诉讼,无法从作为原告的检察机关的权力角度来确定请求权基础,需要实现从原告权利(力)向被告义务的转向,以行政机关法定义务作为请求权基础。以行政机关法定义务作为请求权基础,符合行政公益诉讼的诉讼结构,体现行政法律关系内容的义务性,也有利于统一审查行政机关的义务与职责。行政机关环境义务主要来源于行政法律一般性规范和环境法律规范,作为请求权基础的法律规范类型多样,需要对之进行体系化构造,这样才能准确判断行政机关的义务,确定环境行政公益诉讼的请求权基础并对之进行审查。

关键词：环境行政公益诉讼请求权基础行政义务