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原油沉降罐散热量表征实验系统建设

实验科学与技术 2023年第6期21卷 73-78页

作者：林日亿郑炜博尹钦禾刘东林易曼玲王新伟中国石油大学(华东)新能源学院青岛266580 胜利油田技术检测中心东营257000

准确表征沉降罐的散热损失对于原油集输系统的节能降耗具有重要意义,该文通过搭建原油沉降罐散热量表征实验系统,开展了沉降罐散热过程的内部温度场和不同部位热流分布的实验测量。结果表明,底面热传导热损失>侧面综合散热损失>拱顶面... 详细信息

准确表征沉降罐的散热损失对于原油集输系统的节能降耗具有重要意义,该文通过搭建原油沉降罐散热量表征实验系统,开展了沉降罐散热过程的内部温度场和不同部位热流分布的实验测量。结果表明,底面热传导热损失>侧面综合散热损失>拱顶面综合散热损失。该实验系统的开发对于油气储运专业学生深入理解传热学知识在工程领域的应用发挥了积极作用,培养了学生的动手能力。

关键词：原油沉降罐热电偶测温温度分布散热损失

Phylogenetic position of Dysteria derouxi(Ciliophora :Phyllo - pharyngea : Dysteriida)inferred from the small subunit ribosomal RNA gene sequence

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Acta Oceanologica Sinica 2006年第1期25卷 119-126页

作者： LI Lifang SONG weibo Laboratory of Protozoology Key Laboratory of Mariculture of Ministry of Education Ocean University of China Qingdao 266003 China

The complete small subunit rRNA （SSrRNA） gene sequence of a marine ciliate, Dysteria derouxi Gong and Song, 2004, was determined to be of 1 708 nucleotides. The phylogenetic position of this species within the class Phyllopharyngea was deduced using distance matrix, maximum parsimony and maximum likelihood methods. Dysteria derouxi, together with other available ciliates of the class Phyllopharyngea, forms a monophyletic clade with strong bootstrap support in the distance matrix, maximum parsimony and likelihood tree construction methods, while the dysterids are, as a monophyletic group, phylogenetically close to the clade of chlamydodontids [values of 100% LS（least-squares）, 100% NJ（neighabor-joining）]. In addition, the trees indicate that dysteriids may be a higher or specialized group within the class, which corresponds well to the morphology and infraciliature.

关键词： SSrRNA phylogenetic position Dysteria derouxi Phyllopharyngea ciliate

益肾升白贴联合穴位注射治疗放化疗所致骨髓抑制的疗效观察

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云南中医药大学学报 2023年第3期46卷 19-23页

作者：王金惠郑维波罗建芬奚江于馨然刘红英文山州人民医院云南文山66300 文山州中医医院云南文山663000 云南中医药大学云南昆明650500

目的观察益肾升白贴联合穴位注射地塞米松治疗恶性肿瘤放化疗所致骨髓抑制的疗效及副作用。方法将101例恶性肿瘤放化疗后发生骨髓抑制的病人随机分成3组,35例采用益肾升白贴联合穴位注射地塞米松治疗,35例仅采用穴位注射地塞米松治疗作... 详细信息

目的观察益肾升白贴联合穴位注射地塞米松治疗恶性肿瘤放化疗所致骨髓抑制的疗效及副作用。方法将101例恶性肿瘤放化疗后发生骨髓抑制的病人随机分成3组,35例采用益肾升白贴联合穴位注射地塞米松治疗,35例仅采用穴位注射地塞米松治疗作为对照组1组,31例以重组人粒细胞集落刺激因子皮下注射治疗作为对照组2组。观察骨髓功能恢复情况及用药的不良反应。结果3组病人骨髓功能恢复时间及总有效率无统计学差异(P>0.05),3组病人经治疗后再程放化疗,骨髓功能分级有统计学意义(P<0.05),益肾升白贴联合穴位注射地塞米松治疗组再程放化期间,仍对骨髓功能有显著保护作用。3组病人均无特殊不良反应。结论益肾升白贴联合穴位注射地塞米松治疗恶性肿瘤放化疗后骨髓抑制安全、有效,且对骨髓功能保护时间长,无明显不良反应,值得临床推广使用。

关键词：益肾升白贴穴位注射放化疗骨髓抑制随机对照试验

Enhancing bifunctionality of CoN nanowires by Mn doping for long-lasting Zn-air batteries

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Science China Chemistry 2020年第7期63卷 890-896页

作者： Yongqi Zhang Bo Ouyang Guankui Long Hua Tan Zhe Wang zheng Zhang weibo Gao Rajdeep Singh Rawat Hong Jin Fan School of Physical and Mathematical Sciences Nanyang Technological University21 Nanyang Link637371Singapore Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 611731China Department of Applied Physics and Institution of Energy and Microstructure Nanjing University of Science and TechnologyNanjing 210094China Institute of Materials Research and Engineering A*STAR(Agency fo r ScienceTechnology and Research)Innovis 138634Singapore Natural Sciences and Science Education National Institute of EducationNanyang Technological UniversitySingapore 637616Singapore

Tailoring the nanostructure and composition of transition metal nitrides is highly important for their use as potent low-cost electrocatalysts. Cobalt nitride(CoN) exhibits strong catalytic activity for oxygen evolution reaction(OER). However, its poor catalytic efficiency for oxygen reduction reaction(ORR) hinders its application in rechargeable zinc-air batteries(ZABs) as the air cathode. In this work, we deploy the effective strategy of Mn doping to improve both OER and ORR activity of CoN nanowires as the cathode material for ZAB. Theoretical calculation predicts that moderate Mn doping in cobalt nitride results in a downshift of the d-band center and reduces the adsorption energy of reaction intermediates. With ~10 at% Mn dopants, stronger catalysis activities for both OER and ORR are achieved compared to pure CoN nanowires. Subsequently, both aqueous and flexible quasi-solid-state ZABs are constructed using the Mn-doped CoN nanowires array as additive-free air cathode. Both types of devices present large open circuit potential, high power density and long-cycle stability. This work pushes forward the progress in developing cost-effective ZABs.

关键词： bifunctional electrocatalyst Zn-air battery oxygen reduction reaction flexible battery plasma processing

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原油储罐温室气体平均排放因子研究

油气田地面工程 2016年第11期35卷 24-26页

作者：孙东郑炜博周广响林日亿苗明强韩超杰王新伟中国石化胜利油田技术检测中心能源站中国石油大学(华东)储运与建筑工程学院

原油储罐是油气上游生产环节中不可忽略的温室气体逸散排放源。为探究原油储罐温室气体排放情况,根据胜利油田86座储罐排出气体成分和流量的实地监测结果,利用统计学方法对监测数据进行处理,获得储罐温室气体平均排放因子。其中,一次沉... 详细信息

原油储罐是油气上游生产环节中不可忽略的温室气体逸散排放源。为探究原油储罐温室气体排放情况,根据胜利油田86座储罐排出气体成分和流量的实地监测结果,利用统计学方法对监测数据进行处理,获得储罐温室气体平均排放因子。其中,一次沉降罐的平均排放因子为0.1215 kg/t,95%的置信区间为0~0.3846kg/t;二、三次沉降罐的平均排放因子为0.0274kg/t,95%的置信区间为0~0.0972kg/t;净化罐的平均排放因子为0.016 4 kg/t,95%的置信区间为0~0.0730kg/t。一次沉降罐温室气体排放量远大于二、三次沉降罐和净化罐的排放量,是储罐温室气体排放的主要来源。

关键词：原油储罐温室气体排放因子实地监测

烟台市民健康体检主动性现状及其影响因素分析

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中国医院统计 2016年第3期23卷 192-196页

作者：夏吉凯石德文杨青霖王培源郑维波李军杨明浩滨州医学院附属医院放射科 256603 滨州医学院期刊部烟台市毓璜顶医院放射科滨州医学院烟台附属医院放射科

目的了解烟台市民健康体检主动性现状，提出提高市民健康体检主动性的策略，为落实《烟台市健康服务业发展规划（2015--2020）》以及相关部门和领导制定卫生保健相关政策提供参考和依据。方法采用多阶段抽样的方法确定样本，统一培训调... 详细信息

目的了解烟台市民健康体检主动性现状，提出提高市民健康体检主动性的策略，为落实《烟台市健康服务业发展规划（2015--2020）》以及相关部门和领导制定卫生保健相关政策提供参考和依据。方法采用多阶段抽样的方法确定样本，统一培训调查员，按统一的方法和标准进行面对面问卷调查，并运用logistic回归对影响市民健康体检主动性的因素进行分析。结果共调查2227人，2043份问卷有效，有效率95．2％，统计结果表明，有9．01％的市民具有较强的定期健康体检主动性，17．87％的市民不会主动体检，其他市民是根据收入和健康状况选择体检。体检的主动性随着年龄增大（OR=1．723，P=0．0012）、收入的增加（OR=3．436，P〈0．0001）有所增长；以农业劳动者为参照，机关、企／事业单位人员体检主动性较高（OR=1．634，P=0．0099）。结论烟台市民健康体检主动性较低，体检主动性的高低-9年龄、从事职业、家庭收入水平等均有关系，建议加强市民健康教育引导，加强健康干预力度，在新医改的基础上加入健康体检项目，促进全民健康体检。提升部分人群体检主动性。

关键词：市民健康体检主动性现状策略 logistic回归

Morphogenetic　studies　on　Uronychia　uncinata（Protozoa，Ciliophora）during　its　asexual　division

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Acta Oceanologica Sinica 1996年第1期15卷 93-99页

作者： Song weibo College of Fisheries Ocean University of Qingdao Qingdao 266003 China

Morphogenesis of cell division is investigated in Uronychia uncinata based on protargol impregnated apecimens. The conical morphogenetic events are similar to that known in other euplotids but exhibiting several characteristies: the oral primordium in proter being de novo developed in a subcortical pouch anterior to the parental AZM2; FC comes from anlage Ⅰ-Ⅲ; all frontoventral and transverse cirri in both proter and opisthe deriving from 5 cirral streaks; development of proter oral primordia causing partial replacement of old AZM1; caudal cirri coming from two DK anlagen.

关键词： Marine ciliate Uronychia uncinata morphogenesis conical development

Effect of Graphite Nodule Diameter on Water Embrittlement of Austempered Ductile Iron

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Journal of Iron and Steel Research International 2005年第3期12卷 40-45页

作者： CAIQi-zhou weibo-kang TANAKAYuichi HuazhongUniversityofScienceandTechnology Wuhan430074China MuroranInstituteofTechnology Muroran050-8585Japan

Effects of graphite nodule diameter on the water embrittlement of austempered ductile iron (ADI) is studied. The water embrittlement mechanism is discussed. Due to water adhesion, local embrittlement occurs on the surface of ADI specimen, resulting in early fracture and significant reduction in tensile strength and elongation. The water embrittlement is the cracking of stress induced martensite formed during tensile deformation caused by hydrogen diffusion decomposed from water and as a result tensile strength and elongation of ADI are remarkably reduced. The segregation of alloying elements in ductile iron is weakened with decreasing nodule diameter, reducing the residual austenite in grain boundaries, then decreasing the amount of stress induced martensite during tensile plastic deformation and finally restraining ADI water embrittlement.

关键词： austempered ductile iron water embritttlement graphite nodule diameter tensile property

Performance analysis of Turbo-Codes in communication channels with impulsive noise

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Journal of Systems Engineering and Electronics 2009年第1期20卷 27-31页

作者： Li Chong Deng weibo Duan Lingjie Dept. of Electrical and Information Harbin Inst. of Technology Harbin 150001 P. R. China

Performance of Turbo-Codes in communication channels with impulsive noise is analyzed. First, mathematical model of impulsive noise is presented because it has non-Gaussian nature and is found in many wireless channels due to impulsive phenomena of radio-frequency interference. Then, with linear Log-MAP decoding algorithm for its low complexity, Turbo-Codes are adopted and analyzed in such communication channels. To confirm the performance of the proposed method, simulations on both static and fully interleaved flat Rayleigh fading channels with impulsive noise have been carried out. It is shown that Turbo-Codes have a better performance than the conventional methods （e.g. convolutionally coded system）.

关键词： Turbo-Codes impulsive noise Log-MAP Gaussian mixture distribution universal nobile telecommu-nications system.