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Spontaneous Deposition of Uniformly Distributed Ruthenium Nanoparticles on Graphitic Carbon Nitride for Quantifying Electrochemically Accumulated H_(2)O_(2)

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Chinese Journal of Chemistry 2021年第12期39卷 3369-3374页

作者： Yuanyuan Jiang zhenyu Ding Meng Gao Chuanxia Chen Pengjuan Ni Chenghui Zhang Bo Wang Guangbin duan Yizhong Lu School of Materials Science and Engineering University of JinanJinanShandong 250022China

Highly dispersed ultrasmall ruthenium nanoparticles with a clean surface are deposited onto graphitic carbon nitride(C_(3)N_(4)-Ru)through spontaneous redox reaction between the C_(3)N_(4) sheets and Ru salt without the use of any *** as-prepared C_(3)N_(4)-Ru exhibits distinct peroxidase-like activity.A nanozyme based method is successfully developed for detecting the H_(2)O_(2) generated in-situ by the two-electron oxygen reduction *** C_(3)N_(4)-Ru nanozyme can realize the detection of H_(2)O_(2) with a wide linear range and a low detection *** testing results are also compared with the conventional modified titration method,and show greater possibility for the practical detection of H_(2)O_(2) produced via the electrochemical oxygen reduction for its higher selectivity.

关键词： Ruthenium UV/Vis spectroscopy Electrochemistry Hydrogen peroxide Carbon nitride

Folic Acid Status and Associated Factors for Pregnant Chinese Women—China,2015

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China CDC weekly 2021年第11期3卷 226-231页

作者： Shan Jiang Jie Wang Yifan duan Xuehong Pang Ye Bi Huanmei Zhang Shuxia Wang zhenyu Yang National Institute for Nutrition and Health Chinese Center for Disease Control and PreventionKey Laboratory of Trace Element NutritionNational Health and Family Planning Commission of the Peoples’Republic of ChinaBeijingChina.

Summary What is already known on this topic?Low folate status in pregnancy has been associated with multiple adverse pregnancy outcomes,including neural tube defects,congenital heart defects,fetal growth restriction,l... 详细信息

关键词： pregnancy fetal congenital

Analysis and Control of Surface Delamination Defects During Milling of Orthogonal Aramid Fiber‑Reinforced Composites Laminates

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Transactions of Nanjing University of Aeronautics and Astronautics 2020年第3期37卷 353-359页

作者： SHI zhenyu duan Ningmin LI Xin WANG Zhaohui Key Laboratory of High Efficiency and Clean Mechanical Manufacture Ministry of EducationShandong UniversityJinan 250061P.R.China School of Mechanical Engineering Shandong UniversityJinan 250061P.R.China

The aramid fiber-reinforced composites(AFRC)can increase the durability of corresponding applications such as aerospace,automobile and other large structural parts,due to the improvement in hardness,heat build-up,wear properties and green environmental ***,because of its complex multiphase structure and unique heterogeneity and anisotropy,the poor compression fatigue resistance and the incident surface fibrillation are *** improve the assembly precision of AFRC,mechanical processing is necessary to meet the dimensional *** paper focuses on the influence of contour milling parameters on delamination defects during milling of AFRC laminates.A series of milling experiments are conducted and two different kinds of delamination defects including tearing delamination and uncut-off delamination are investigated.A computing method and model based on brittle fracture for the two different types of delamination are *** results can be used for explaining the mechanism and regularity of delamination *** control strategy of delamination defects and evaluation method of finished surface integrity are further *** results are meaningful to optimize cutting parameters,and provide a clear understanding of surface defects control.

关键词： aramid fiber-reinforced composites(AFRC) milling process delamination defects surface control prediction model

中国与WHO生长标准评价儿童营养不良的比较

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英国医学杂志中文版 2015年第7期18卷 382-388页

作者： zhenyu Yang Yifan duan Guansheng Ma Xiaoguang Yang Shian Yin Key Laboratory of Trace Element Nutrition Ministry of Health of China National Institute for Nutrition and Health Chinese Center for Disease Control and Prevention Beijing China.

目的比较中国儿童生长标准与WHO的儿童生长标准评价我国5岁以下儿童营养不良状况的差异。地点调查的家庭来自中国大陆31个省、自治区、直辖市（不包括台湾、香港和澳门）。研究对象采用分层多阶段整群随机抽样，选取调查家庭中5岁以下... 详细信息

目的比较中国儿童生长标准与WHO的儿童生长标准评价我国5岁以下儿童营养不良状况的差异。地点调查的家庭来自中国大陆31个省、自治区、直辖市（不包括台湾、香港和澳门）。研究对象采用分层多阶段整群随机抽样，选取调查家庭中5岁以下儿童（n=15886）参与调查。主要的结果低体重、生长迟缓、消瘦、超重和肥胖。结果根据中国儿童生长标准估计的低体重（8．7％比4．8％）、生长迟缓（17．2％比16．1％）、消瘦（4．4％比3．0％）率都显著高于采用WHO标准的估计值（P〈0．001）；超重率则低于WHO标准估计值（9．4％比10．2％，P〈0．001）。在多数情况下，用中国生长标准估计营养不良率时都偏高。然而，对于3～4、6、8、10、12～18和24月龄的男童，中国生长曲线估计的超重率明显偏低。结论WHO生长标准评价营养不良较谨慎，适合用于同其他国家进行比较。在具有当地生长曲线的国家且同WHO生长曲线存在明显差异时，应进一步研究WHO生长标准在这些国家的适用性。

关键词： WHO 生长标准儿童营养不良

A BIOMECHANICAL ANALYSIS OF UNILATERAL HOOKED-SULCATED EXTERNAL FIXATOR ON OSTEOMINED TIBIA

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Chinese Medical Sciences Journal 1998年第1期13卷 49-52页

作者：段德宇刘国平杜靖远饶振玉 Department of Orthopaedics Union Hospital Tongji Medical University Wuhan 430022.

Four tibiae removed from 30-40 years males, who died of accidents in less than 12 hours, were os- teomized at medium part. Then these tibiae were fixed by an unilateral hooked-sulcated external fixator (UHSEF), and the bone-fixator system was used as a model of external fixation of tibial fracture. The axial compression, distraction, torsion, antero-posterior and lateral bending rigidly and the strain of the pins were determined in this system. Based on the results, we found that compared with the configuration of four paralled pins, the rigidity of the fan-like configuraton didn’t decrease significantly if the angle between lateral and medium pins was less than 45’. But the reverse was true when the frame separation increased from 5 to 8 cm. What’ more, the pin strain decreased if the rigidity of the system was improved. These data provided a theoretical basis of biomechanics for the improvement of UHSEF.

关键词： tibia external fixator biomechanics)

“党规党纪严于国家法律”正当性阐释的理论补强——基于权力运行制约的视角

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河南社会科学 2022年第1期30卷 55-62页

作者：段磊章振毓武汉大学法学院湖北武汉430072 武汉大学党内法规研究中心湖北武汉430072

既有对"党规党纪严于国家法律"正当性的研究多采取"以权利限制为中心"的视角,其研究结论面临着传统公法学理论体系中基本权利保障目标的诘难,因而呈现出理论诠释力不足的困境。为消解这一困境,应通过"从现象到目的"的研究视角转换,以党... 详细信息

既有对"党规党纪严于国家法律"正当性的研究多采取"以权利限制为中心"的视角,其研究结论面临着传统公法学理论体系中基本权利保障目标的诘难,因而呈现出理论诠释力不足的困境。为消解这一困境,应通过"从现象到目的"的研究视角转换,以党中央的政策表述和以《中国共产党纪律处分条例》为代表的党规党纪规范意涵为依据,探寻党中央提出"党规党纪严于国家法律"之目的,从而引入权力运行制约的研究视角,以进一步补强现有理论阐释之不足。在权力运行制约视角下,"党规党纪严于国家法律"的正当性主要体现为,为加强对权力运行的制约和监督,中国共产党要求其党员尤其是领导干部遵守较国法更为严格的党规党纪,从而确保党员领导干部正确行使公权力,避免权力滥用。对"党规党纪严于国家法律"限度之判断,应在因循比例原则要求的基础上,将对公权力运行之约束作为这一论断欲实现的目的之一纳入"手段-目的"平衡之考量。

关键词： “党规党纪严于国家法律” 权力运行制约权利限制

Application of field asymmetric ion mobility spectrometry in moldy tobacco recognition

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Application of field asymmetric ion mobility spectrometry in...

ASPM在肺腺癌中的表达及其与肺腺癌的进展和预后关系的研究

中国烟草学会2017年学术年会

作者： XIA Fei LI Jie SUN Depo ZHANG Qiang duan Anling ZHOU Yuanzhen YAO zhenyu Yunnan Reascend Tobacco Technology (Group) Co. Ltd. Honghe Cigarette Factory Hongyun-Honghe Tobacco (Group) Co. Ltd.

Field asymmetric ion mobility spectrometry(FAIMS) was used to distinguish moldy tobacco and normal tobacco. Tobacco ion peak characteristics from FAMIS analysis and a recognition rule were established. The key parameters for the moldy tobacco recognition in FAIMS included compensation voltage(CV), dispersion electric field(DF) and ion current value(ICV). When the DF and CV value were set as the followings: DF=50%, CV=-0.788 V, or DF=55%, CV=-0.882 V, the characteristic ion peaks of moldy tobacco tested under positive mode were observed. ICV values increased with the degree of moldy severity;therefore, the ICV values were used to distinguish moldy tobacco under DF and CV conditions described above. When the ICV values were ICV≥0.13 and 0.20>ICV≥0.11, respectively, samples were determined as mild moldy;when the ICV values were≥0.24 and ≥0.20, respectively, samples were determined as severe moldy;when the ICV values were> 0.13 and 0.11, respectively, the moldy condition could not be determined. These rules were applied to distinguish moldy tobacco among 65 types of tobacco samples. Among which, 29 types of normal tobacco, 22 types of mild moldy tobacco and 6 types of severe moldy tobacco were correctly identified, and 4 types of tobacco were not determined. The recognition accuracy rate was 93.4%.

关键词： Field asymmetric ion mobility spectrometry(FAIMS) Moldy tobacco Recognition rule

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中国肺癌杂志 2020年第1期23卷 29-35页

作者：王俊杰何振宇段仁慧河南省新乡市中心医院肿瘤内三科新乡453000 中山大学附属肿瘤医院放疗科广州510060

背景与目的已有的研究表明人类异常纺锤体样小头畸形相关蛋白(abnormal spindle-likemicrocephalyassociated protein,ASPM)是一个与肿瘤发生发展相关的蛋白,ASPM的突变会导致常染色体隐性原发性小头畸形。本研究主要是探讨肺腺癌组织... 详细信息

背景与目的已有的研究表明人类异常纺锤体样小头畸形相关蛋白(abnormal spindle-likemicrocephalyassociated protein,ASPM)是一个与肿瘤发生发展相关的蛋白,ASPM的突变会导致常染色体隐性原发性小头畸形。本研究主要是探讨肺腺癌组织中的表达情况与肺癌进展和预后的关系。方法收集90例肺腺癌组织标本和对应的90例肺良性病变组织标本,应用免疫组织化学技术检测其中90对组织中ASPM的表达情况,应用实时荧光定量核酸扩增法和蛋白印迹法的方法检测其中12对组织中ASPM的表达情况。结果肺良性病变组织标本中ASPM表达为阴性,肺腺癌组织中ASPM的表达为阳性结果且表达水平均显著高于肺良性病变肺组织(P0.05)。肿瘤大小≥4 cm的ASPM表达水平均显著高于肿瘤大小<4 cm(P<0.05)。分层分析结果表明T分期与ASPM表达层度相关(P<0.05)。肺腺癌组织中ASPM的高表达水平与不良预后呈正相关(P<0.05)。结论肺腺癌中ASPM的表达水平明显升高,且与肺腺癌的进展有密切关系。肺腺癌组织中ASPM的表达水平与不良预后呈正相关(P<0.05)。检测肺腺癌中ASPM的表达水平有助于提早的预测肺腺癌的预后。

关键词：肺腺癌人类异常纺锤体样小头畸形相关蛋白免疫组织化学预后

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硫磺回收装置胺液再生系统腐蚀控制策略

石油与天然气化工 2023年第4期52卷 14-18页

作者：包振宇段永锋王宁中石化炼化工程集团洛阳技术研发中心中石化石油化工设备防腐蚀研究中心

目的解决硫磺回收装置胺液再生系统的腐蚀问题,保障装置的安稳长周期运行。方法①基于某企业胺液再生系统的工况条件及选材,结合发生的腐蚀问题,确定主要腐蚀/损伤类型、发生部位及严重程度;②根据介质类型划分区块,并提出关键参数的阈... 详细信息

目的解决硫磺回收装置胺液再生系统的腐蚀问题,保障装置的安稳长周期运行。方法①基于某企业胺液再生系统的工况条件及选材,结合发生的腐蚀问题,确定主要腐蚀/损伤类型、发生部位及严重程度;②根据介质类型划分区块,并提出关键参数的阈值和超标后的响应策略;③将腐蚀控制策略在工业现场进行应用,并验证其改善腐蚀问题的效果。结果在采用推荐选材的情况下,通过设定温度和流速阈值、控制胺液特征指标,并在参数超标时采取相应的响应策略,能够将胺液再生系统的整体腐蚀速率控制在0.05 mm/a以下。结论通过在重点腐蚀部位实施腐蚀控制策略,胺液再生系统设备和管道的腐蚀程度得到显著缓解,有助于延长单次运行周期,实现降本增效。

关键词：硫磺回收胺液再生热稳定盐冲蚀选材腐蚀控制