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Atmospheric sulfur hexafluoride in-situ measurements at the Shangdianzi regional background station in China

Journal of Environmental Sciences 2014年第12期26卷 2451-2458页

作者： Bo Yao Lingxi Zhou lingjun Xia Gen Zhang Lifeng Guo zhao Liu Shuangxi Fang Guangzhou Institute of Geochemistry Chinese Academy of Sciences Chinese Academy of Meteorological Sciences (CAMS) China Meteorological Administration (CMA) University of Chinese Academy of Sciences Nanjing University of Information Science and Technology Meteorological Research Institute of Heilongjiang Province

We present in-situ measurements of atmospheric sulfur hexafluoride（SF6） conducted by an automated gas chromatograph–electron capture detector system and a gas chromatography/mass spectrometry system at a regional background site, Shangdianzi,in China, from June 2009 to May 2011, using the System for Observation of Greenhouse gases in Europe and Asia and Advanced Global Atmospheric Gases Experiment（AGAGE）techniques. The mean background and polluted mixing ratios for SF6 during the study period were 7.22 × 10-12（mol/mol, hereinafter） and 8.66 × 10-12, respectively. The averaged SF6 background mixing ratios at Shangdianzi were consistent with those obtained at other AGAGE stations located at similar latitudes（Trinidad Head and Mace Head）, but larger than AGAGE stations in the Southern Hemisphere（Cape Grim and Cape Matatula）. SF6 background mixing ratios increased rapidly during our study period, with a positive growth rate at 0.30 × 10-12year-1. The peak to peak amplitude of the seasonal cycle for SF6 background conditions was 0.07 × 10-12, while the seasonal fluctuation of polluted conditions was 2.16 × 10-12. During the study period, peak values of SF6 mixing ratios occurred in autumn when local surface horizontal winds originated from W/WSW/SW/SWS/S sectors, while lower levels of SF6 mixing ratios appeared as winds originated from N/NNE/NE/ENE/E sectors.

关键词： Atmospheric sulfur hexafluoride (SF6) In-situ measurement Shangdianzi Seasonality Data analysis

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进展期胃癌热疗联合其他治疗的进展

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中国医药导报 2015年第24期12卷 57-60页

作者：赵玲俊李佳姜丽真刘彦同王大庆张清泉河北医科大学哈励逊国际和平医院肿瘤内科河北衡水053000 河北医科大学哈励逊国际和平医院急救中心河北衡水053000 河北医科大学哈励逊国际和平医院药剂科河北衡水053000 河北医科大学哈励逊国际和平医院病理科河北衡水053000

进展期胃癌是消化道常见恶性肿瘤之一,多数患者就诊时已进入晚期,失去手术机会,预后差,治疗难度较大。近年来,对于进展期胃癌,采用热疗联合其他治疗,如热疗联合化疗,利于化疗药物的渗透和吸收,使疗效有一定提高。热疗联合放疗在较小放... 详细信息

进展期胃癌是消化道常见恶性肿瘤之一,多数患者就诊时已进入晚期,失去手术机会,预后差,治疗难度较大。近年来,对于进展期胃癌,采用热疗联合其他治疗,如热疗联合化疗,利于化疗药物的渗透和吸收,使疗效有一定提高。热疗联合放疗在较小放疗剂量下,到达较高疗效,两者有互补功效;热疗联合放化疗在提高肿瘤控制率和患者生存率同时,尽可能减轻放射性损伤,避免放疗并发症;目前临床应用靶向药物极易产生耐药,联合热疗后药物敏感程度增高,提高了疗效;热疗除自身效果外联合阿片类药物,可快速、高效治疗骨性疼痛,使得各种止痛效果得以放大。

关键词：进展期胃癌热疗增敏剂联合治疗疗效

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现代学徒制背景下校企“双导师”混合式课程的教学探索与实践——以《煤化学》课程为例

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云南化工 2022年第3期49卷 125-127页

作者：张亚萍乔建芬赵凌俊罗承强杨静静山西铁道职业技术学院山西太原030013 山西安泰控股集团有限公司山西晋中035400 临汾万鑫达焦化有限责任公司山西临汾041503

现代学徒制“双导师”混合式课程的实施,实现了教学目标与产业需求的对接。以《煤化学》课程为例,从“双导师”混合式课程设计、“双导师”教学分工与“双导师”教学评价等方面,探索了现代学徒制背景下校企“双导师”混合式课程的实践,... 详细信息

现代学徒制“双导师”混合式课程的实施,实现了教学目标与产业需求的对接。以《煤化学》课程为例,从“双导师”混合式课程设计、“双导师”教学分工与“双导师”教学评价等方面,探索了现代学徒制背景下校企“双导师”混合式课程的实践,重点介绍了校内教师与企业导师共同完成课程教学的实施过程。

关键词：现代学徒制双导师混合课程

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Unveiling the impact of residual Li conversion and cation ordering on electrochemical performance of Co-free Ni-rich cathodes

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Nano Research 2022年第10期15卷 9038-9046页

作者： Chu Wang Lei Tan Hongling Yi Zixiang zhao Xiaoli Yi Youyuan Zhou Junchao Zheng Jiexi Wang lingjun Li School of Materials Science and Engineering Changsha University of Science and TechnologyChangsha 410114China School of Energy and Power Engineering Changsha University of Science and TechnologyChangsha 410114China School of Metallurgy and Environment Central South UniversityChangsha 410083China Hunan Changyuan Lico Co. Ltd.Changsha 410205China

The residual Li and Li^(+)/Ni_(2)+cation mixing play essential roles in the electrochemical properties of Ni-rich ***,a general relationship between the residual Li conversion,cation mixing,and their effects on the Li^(+)kinetics and structural stability has yet to be established,due to the presence of cobalt in the ***,we explore the synergistic impact of the residual Li conversion and cation ordering on a Co-free Ni-rich cathode(i.e.,LiNi0.95Mn0.05O_(2)).It discloses that the rate capability is mainly affected by residual Li contents and operating ***,residual Li can be electrochemically converted to cathode electrolyte interphase(CEI)below 4.3 V,thus inducing high interphase resistance,and decomposes to produce CO_(2)-dominated gas at 4.5 V,causing temporary enhancement of Li^(+)diffusivity but severe surface degradation during ***,the cycling performance of Co-free Ni-rich cathode is not only determined by Li^(+)/Ni_(2)+cation-ordered superlattice,which enhances the structural stability as it functions as the pillar to impede lattice collapse at a highly charged state,but also by the robust CEI layers which protect the bulk from electrolyte attack under 4.3 *** findings promote an in-depth understanding of residual Li conversion and Li^(+)/Ni_(2)+cation ordering on Co-free Ni-rich cathode.

关键词： Li-ion batteries Co-free Ni-rich cathodes residual Li conversion cation ordering

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基于认知心理学的电梯安全标志有效性评价

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中国特种设备安全 2024年第7期40卷 6-11,15页

作者：赵聃吴琳琳蒋林鹏金仲平董灵军中国计量大学能源环境与安全工程学院杭州310018 台州市特种设备检验检测研究院台州318001

电梯安全标志是引导乘客规范乘梯的重要工具,但当前张贴状况和有效性不佳。为客观评价和引导提高电梯安全标志的有效性,基于认知心理学将电梯安全标志的认知行为过程分为5个阶段,进而建立包含5个二级指标和20个三级指标的评价体系,并基... 详细信息

电梯安全标志是引导乘客规范乘梯的重要工具,但当前张贴状况和有效性不佳。为客观评价和引导提高电梯安全标志的有效性,基于认知心理学将电梯安全标志的认知行为过程分为5个阶段,进而建立包含5个二级指标和20个三级指标的评价体系,并基于国家标准和现有文献对各指标设置评分标准,以某市某商场为例进行电梯安全标志有效性评价,随后针对电梯安全标志使用现状提出相关建议。

关键词：电梯安全标志评价指标体系网络层次分析法认知心理学

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A meta-analysis of caspase-8-652 6N del polymorphism and digestive tract cancer risk

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The Journal of Biomedical Research 2019年第3期33卷 173-180页

作者： Haina Du Guoxin Song Mingzhi Fang Yongqian Shu Xin zhao lingjun Zhu Department of Oncology the Third Affiliated Hospital of Nanjing University of T.C.M Departments of Pathology the First Affiliated Hospital of Nanjing Medical University Departments of Oncology the First Affiliated Hospital of Nanjing Medical University Departments of Pneumology the First Affiliated Hospital of Nanjing Medical University

Caspase-8(CASP8) is one key regulator of apoptosis of T lymphocytes and is encoded by the CASP8 gene. It has been reported that the six-nucleotide deletion polymorphism(-652 6 N del) of the CASP8 gene had effect on some cancer risk. Few studies explored the association between CASP8 gene polymorphism and digestive tract cancer *** evaluate the association between the CASP8-652 6 N del polymorphism and the risk of digestive tract cancer, we conducted this meta-analysis. We found that CASP8-652 6 N del polymorphism was associated with a significantly reduced risk of digestive tract cancer in the co-dominant model(del/del vs. ins/ins: OR= 0.82, 95%CI= 0.72-0.95;del/ins vs. ins/ins: OR = 0.92,95%CI = 0.87-0.97;dominant model(del/ins + del/del vs. ins/ins: OR = 0.91,95%CI =0.87-0.96, recessive model: del/del vs. del/ins + ins/ins: OR = 0.85, 95%CI = 0.75-0.97). In the stratified analysis by cancer types, we found that all genetic models had protective effect on gastric cancer. Similar results were observed for colorectal cancer under heterozygote comparison and dominant model, but not under homozygote comparison or recessive model. In addition, a significantly decreased risk was found on esophageal cancer for most genetic models,except heterozygote comparison. When stratified by ethnicity and source of control, an evidently decreased risk was identified in the Asian populations and population-based studies. In conclusion, there exists an association between the CASP8-652 6 N del polymorphism and reduced digestive cancer risk, especially among Asians and populationbased studies.

关键词： caspases-8 polymorphism digestive tract cancer risk

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HO-1在胃腺癌中的表达

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中国现代医生 2011年第32期49卷 93-95页

作者：赵玲俊王丽华刘丽娜王维展多荣马国营河北医科大学附属哈励逊国际和平医院河北石家庄053000

目的检测HO-1在胃腺癌中的表达,分析HO-1在胃腺癌发生发展中的作用。方法采用免疫组织化学方法检测在病理科存档的68例胃腺癌(分高、中、低分化组)石蜡标本,与20例慢性萎缩性胃炎、20例慢性非萎缩性胃炎标本对照,比较HO-1/CO分布表达情... 详细信息

目的检测HO-1在胃腺癌中的表达,分析HO-1在胃腺癌发生发展中的作用。方法采用免疫组织化学方法检测在病理科存档的68例胃腺癌(分高、中、低分化组)石蜡标本,与20例慢性萎缩性胃炎、20例慢性非萎缩性胃炎标本对照,比较HO-1/CO分布表达情况。采用SPSS13.0统计软件进行χ2检验和Fisher精确概率法检验统计学方法分析。结果HO-1在胃腺癌、慢性萎缩性胃炎、慢性非萎缩性胃炎中阳性率分别是88%(60/68)、60%(12/20)、10%(2/20)。胃腺癌中HO-1的表达明显高于慢性萎缩性胃炎(P<0.05);慢性萎缩性胃炎中HO-1的表达明显高于慢性非萎缩性胃炎组(P<0.05);重度慢性萎缩性胃炎中HO-1的表达明显高于轻度慢性萎缩性胃炎组(P<0.05);胃腺癌低分化组阳性数明显大于中分化组,中分化组阳性数明显高于高分化组,两两比较有显著差异(P<0.05)。结论 HO-1在胃腺癌病理组织的高表达,表明HO-1在胃腺癌发生发展中起重要作用,为胃腺癌早期预防、早期诊断、预后判断及治疗方案选择提供重要依据。

关键词：血红素氧合酶-1 胃腺癌慢性萎缩性胃炎免疫组化

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Isobutane dehydrogenation over chromia alumina catalysts prepared from MIL-101: Insight into chromium species on activity and selectivity

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Journal of Energy Chemistry 2014年第6期23卷 708-716页

作者： Huahua zhao Huanling Song Zhichao Miao lingjun Chou State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences Institute of Nano-Tech and Nano-Bionics University of Chinese Academy of Sciences

Various mesoporous chromia alumina catalysts were prepared by five different methods based on a metal-organic framework MIL-101 and their catalytic performances over isobutane dehydrogenation were investigated. The highly dispersed chromium species were produced on catalyst KCrAI-I1 with largest specific surface area of 198 m2-g-1 prepared with aluminium isopropoxide （Al（i-OC3HT）3） by ultrasonic im- pregnation method. However, the catalyst KCrAI-I2 synthesized by stirring impregnation possessed crystalline a-Cr203 phase, which was poorly dispersed. Two types of Cr-rich and Al-rich CrzA12_zO3 solid solutions, designated as CrAI-I and CrAI-II phase, were formed over the catalysts KCrAI-I3 （prepared by Al（i-OC3HT）3 with nitric acid regulation）, KCrA1-C4 （prepared by aluminium chloride hexahydrate） and KCrA1-N5 （prepared by aluminium nitrate nonahydrate）. Catalytic evaluation results revealed that KCrAI-I1 exhibited the high isobutane con- version due to its highly dispersed chromium species. However, KCrAI-I3, KCrA1-C4 and KCrA1-N5 showed the higher isobutene selectivity （95.2%-96.4%） on account of the formation of chromia alumina solid solutions in the catalysts. Moreover, the solid solution over the chromia alumina catalysts could greatly suppress the coke formation.

关键词： isobutane dehydrogenation chromia alumina solid solution metal organic framework MIL-IO1

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果树根系与水分关系

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河北果树 2007年第1期 1-1,4页

作者：赵领军张丽军赵善仓山东省济南市农业信息中心 250002 河北省秦皇岛市海港区园林局山东省农科院中心实验室

论述水分与果树根系形态结构、吸水功能等方面的关系,探讨果树根系的抗旱机理以及提高根系水分利用率的调控措施。

关键词：果树根系水分关系

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B-doped and La_(4)NiLiO_(8)-coated Ni-rich cathode with enhanced structural and interfacial stability for lithium-ion batteries

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Journal of Energy Chemistry 2022年第8期31卷 588-594,I0016页

作者： lingjun Li Lizhi Fu Miao Li Chu Wang Zixiang zhao Shangchen Xie Haichen Lin Xianwen Wu Haodong Liu Li Zhang Qiaobao Zhang Lei Tan School of Materials Science and Engineering Changsha University of Science and TechnologyChangsha 410114HunanChina Department of Materials Science and Engineering College of MaterialsXiamen UniversityXiamen 361005FujianChina School of Energy and Power Engineering Changsha University of Science and TechnologyChangsha 410114HunanChina School of Chemistry and Chemical Engineering Jishou UniversityJishou 416000HunanChina Chemical Engineering UC San DiegoLa Jolla 92093CAUnited States College of Chemistry and Chemical Engineering Xiamen UniversityXiamen 361005FujianChina

Ni-rich layered oxides are considered promising cathodes for advanced lithium-ion batteries(LIBs)in the future,owing to their high capacity and low ***,the issues on structural and interfacial stability of Ni-rich cathodes still pose substantial obstacles in the practical application of advanced ***,we employ a one-step method to synthesize a B-doped and La_(4)NiLiO_(8)-coated LiNi_(0.82)5Co_(0.115)Mn_(0.06)O_(2)(BL-1)cathode with reliable structure and interface,for the first *** La_(4)NiLiO_(8)coating layer can prevent cathodes from electrolyte assault and facilitate Li+diffusion ***,B-doping can effectively restrain the pernicious H_(2)-H_(3) phase transition and adjust the orientation of primary particles to a radial alignment,which is obstructive to the arise of microcracks induced by the change of anisotropic ***,when tested in pouch cells,the BL-1 cathode exhibits outstanding capacity retention of 93.49%after 500 cycles at 1 *** dual-modification strategy dramatically enhances the stability of the structure and interface for Ni-rich cathode materials,consequently accelerating the commercialization process of high-energy–density LIBs.

关键词： B-doped and La_(4)NiLiO_(8)-coated Nickel-rich layered cathode Cycle stability Lithium-ion battery

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