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基于4M1E分析法的地勘行业安全生产管理探讨

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钻探工程 2024年第S1期51卷 422-429页

作者：刘治江国会姜春晓梅志华马方史猛邹键万鹏山东省第三地质矿产勘查院山东烟台264004 山东省鲁东地质工程有限公司山东烟台264004

安全是企业发展的基本前提,是劳动人员的基本需求。为实现不同文化水平、不同专业、不同年龄段的人员懂安全、会安全,建立起“人人有责、层层负责、各履其责”的安全生产工作体系,在证实4M1E分析法满足安全生产合规性的基础上,运用4M1E... 详细信息

安全是企业发展的基本前提,是劳动人员的基本需求。为实现不同文化水平、不同专业、不同年龄段的人员懂安全、会安全,建立起“人人有责、层层负责、各履其责”的安全生产工作体系,在证实4M1E分析法满足安全生产合规性的基础上,运用4M1E分析法从安全职能管理、现场安全管理两个层面上,针对人、机、料、法、环等主要生产因素提出实现安全生产的管控重点与落实措施,以此展示安全管理实质上是管控生产因素,从而促进人们对安全管理的理解,实现人员安全素质的提升。研究结果可为地勘行业新形势下的安全管理提供参考与借鉴。

关键词：人机料法环分析法安全管理安全生产地勘行业钻探施工

Sb-SnO2颗粒对钛基体PbO2电极的掺杂改性

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电镀与涂饰 2020年第21期39卷 1495-1500页

作者：梁琳琳张达光慕晓炜蒋春晓陈皓彭巧玲李建华中国大唐集团科学技术研究院有限公司华东电力试验研究院安徽合肥230022 东南大学能源与环境学院江苏南京210009

为提高PbO2电极在电催化氧化废水处理中的稳定性及催化性能,使用溶剂热法制备的Sb-SnO2颗粒对电沉积PbO2电极进行掺杂改性,采用扫描电镜、X射线衍射、强化寿命测试、线性扫描伏安测量、电催化降解等手段对所得电极的组成和性能进行了表... 详细信息

为提高PbO2电极在电催化氧化废水处理中的稳定性及催化性能,使用溶剂热法制备的Sb-SnO2颗粒对电沉积PbO2电极进行掺杂改性,采用扫描电镜、X射线衍射、强化寿命测试、线性扫描伏安测量、电催化降解等手段对所得电极的组成和性能进行了表征,并与未掺杂PbO2电极进行了比较。结果表明,改性PbO2电极的表面形貌及氧化物晶型与未改性PbO2电极相比有一定的区别。相比于未改性PbO2电极,改性PbO2电极在稳定性及抑制析氧反应方面均有改善。在对酸性红G溶液的催化降解过程中,改性PbO2电极的表现优于未改性PbO2电极。掺杂颗粒用量为1.0 g/L的电极表现最优,强化寿命时间达到120 h,析氧电位达到1.88 V(相对于Ag/AgCl电极),脱色反应速率常数达到0.0306 min−1。

关键词：二氧化铅电沉积掺杂改性掺锑二氧化锡溶剂热合成电催化酸性红G

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浅谈工程施工中的质量保证

林业科技情报 2010年第1期42卷 38-39页

作者：宫兆宇姜春晓宫兆祥刘朝阳黑龙江省鹤岗市长城建筑有限责任公司

论述了在工程项目施工过程中,为了保证工程质量必须从人员素质、材料和设备及技术等方面进行全面的管理和采取必要的控制措施。

关键词：工程施工质量保证因素控制

Construction and analysis of a plant transformation binary vector pBDGG harboring a bi-directional promoter fusing dual visible reporter genes

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Journal of Genetics and Genomics 2008年第4期35卷 245-249页

作者： chunxiao Zhang Ying Gai Wenqi Wang Yanyan Zhu Xuemei Chen Xiangning jiang College of Bioscience and Bioengineering Hebei University of Science ＆ Technology Shijiazhuang 050018 China College of Life Sciences and Biotechnology Beijing Forestry University The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of State Forestry Administration Beijing 100083 China Department of Science and Technology Yanshan University Qinhuangdao 066004 China

The constitutive promoter of cauliflower mosaic virus 35S （CaMV 35S） is a polar unidirectional promoter and is widely used in plant genetic engineering. In the present study, the unidirectional CaMV 35S promoter has been modified to a bi-directional promoter by fusing its minimal promoter element to the 5＇ end of CaMV 35S promoter in the opposite orientation. To qualitatively and quantitatively estimate its bi-directional transcriptional function and activity, two visible reporter genes, gusA （13-glucuronidase, GUS） and gfp （green fluorescent protein, GFP）, were fused to the two ends of the promoter in bi-orientations ending with NOS terminator sequences, respectively. Stable expression of gusA and gfp genes in transgenic tobacco （Nicotiana tabacum L.） was visulized by histochemically staining for GUS and fluorescence microscopic observation under UV for GFP in transgenic plants. The expression of two reporter genes showed that the constructed bi-directional promoter did have the bi-directional transcriptional function in both expected orientations. The quantitative estimation of GUS and GFP were determined on a HITACHI F1000 Fluorescence Spectrophotometer with various wavelengths of excitation and emission. The GUS activity varied from g to 250 pmol 4-MU/min/mg protein and the GFP content varied from 0.9 to 1.8 μg/ mg protein in various lines of transgenic tobacco plants. Higher GUS activity generally coupled with lower GFP content, and vice versa.

关键词： bi-directional promoter gusA gene gfp gene Nicotiana tabacum L. expression

Scalable solid-phase synthesis of defect-rich graphene for oxygen reduction electrocatalysis

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Green Energy & Environment 2023年第1期8卷 224-232页

作者： chunxiao Dong Li Yang Cheng Lian Xiaoling Yang Yihua Zhu Hongliang jiang Chunzhong Li Shanghai Engineering Research Center of Hierarchical Nanomaterials School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai200237China Key Laboratory for Ultrafine Materials of Ministry of Education School of Chemical EngineeringEast China University of Science and TechnologyShanghai200237China Institutes of Physical Science and Information Technology Anhui UniversityHefeiAnhui230601China School of Chemistry and Molecular Engineering East China University of Science and TechnologyShanghai200237China

Defect-engineered carbon materials have been emerged as promising electrocatalysts for oxygen reduction reaction(ORR)in metal-air *** a facile strategy for the preparation of highly active nanocarbon electrocatalysts remains ***,a low-cost and simple route is developed to synthesize defective graphene by pyrolyzing the mixture of glucose and carbon *** dynamics simulations reveal that the graphene formation is ascribed to two-dimensional layered feature of carbon nitride,and high compatibility of carbon nitride/glucose *** measurements suggest that the graphene possesses rich edge and topological *** graphene catalyst exhibits higher power density than commercial Pt/C catalyst in a primary Zn-air *** experimental results and theoretical thermodynamic analysis,it is identified that graphitic nitrogen-modified topological defects at carbon framework edges are responsible for the decent ORR *** strategy presented in this work can be can be scaled up readily to fabricate defective carbon materials.

关键词： Carbon materials Electrocatalysis Oxygen reduction reaction Solid-phase synthesis Zn-air battery

Role of electrodes in study of hydrovoltaic effects

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Nano Research 2023年第8期16卷 11320-11325页

作者： chunxiao Zheng Sunmiao Fang Weicun Chu Jin Tan Bingkun Tian Xiaofeng jiang Wanlin Guo Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education State Key Laboratory of Mechanics and Control of Mechanical StructuresNanjing University of Aeronautics and AstronauticsNanjing 210016China Institute for Frontier Science of Nanjing University of Aeronautics and Astronautics Nanjing 210016China

The last decade has witnessed the emergence of hydrovoltaic technology,which can harvest electricity from different forms of water movement,such as raindrops,waves,flows,moisture,and natural *** particular,the evaporation-induced hydrovoltaic effect received great attention since its discovery in 2017 due to its negative heat emission ***,the influence of electrode reactions in evaporation-induced power generation is not negligible due to the chemical reaction between active metal electrodes and water,which leads to“exceptional”power ***,we designed a series of experiments based on air-laid paper devices with electrodes of different activities as the top and bottom *** verify the contribution of electrodes,we compared the output performance of different electrode combinations when the device was partially-wetted and *** device hydrophilicity,salt concentration,and acidity or basicity of solutions were also comprehensively *** is demonstrated that the chemical reaction of active metals(Zn,Cu,Ag,etc.)with different aqueous solutions can generate considerable electrical energy and significantly distort the device performance,especially for Zn electrodes with an output voltage from~1.26 to~1.52 V and current from~1.24 to~75.69μ*** promote the long-term development of hydrovoltaic technology,we recommend use of inert electrodes in hydrovoltaic studies,such as Au and Pt,especially in water and moisture environment.

关键词： hydrovoltaic effects electrodes water electrochemical reaction

Spatial distribution and pollution assessment of mercury in sediments of Lake Taihu,China

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Journal of Environmental Sciences 2013年第2期25卷 316-325页

作者： chunxiao Chen Binghui Zheng Xia jiang Zheng Zhao Yuzhu Zhan Fengjiao Yi Jiaying Ren Beijing Normal University State Key Laboratory of EnvironmentalCriteria and Risk Assessment Chinese Research Academy of Environment Sciences Shanghai Waterway Engineering Design and Consulting Co. Ltd.

Spatial distribution patterns of total mercury （THg） in 36 surficial sediment samples representing five regions of Lake Taihu were assessed using the ArcGis geostatistical analyst module. The pollution levels of THg were also evaluated from the same five lake regions. Concentrations of THg were in a ranged of 23-168 ng/g （mean 55 ng/g） in surfical sediments, which was significantly higher than those established baseline levels of the lake. Results of THg indicated that the northern region exhibited notably higher values, the bay regions showed elevated values relative to open areas, and the lakeside regions were higher than those observed in the central area. Lake Taihu suffered moderate to high Hg pollution, and expressed clear Hg enrichment status according to monomial pollution index I geo and human activity factors. The concentrations of THg in the surficial sediments of Lake Taihu showed moderate-strong variation （coefficient of variation 52%）. Geostatistical analysis indicated a weak spatial self-correlation, suggesting the contamination of Hg in Lake Taihu is primarily the result of anthropogenic activities.

关键词： assessment geostatistics analysis mercury sediment spatial distribution

Integrating reduced graphene oxides and PPy nanoparticles for enhanced electricity from water evaporation

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International Journal of Smart and Nano Materials 2023年第2期14卷 230-242页

作者： Bingkun Tian Xiaofeng jiang Weicun Chu chunxiao Zheng Wanlin Guo Zhuhua Zhang State Key Laboratory of Mechanics and Control for Aerospace Structures Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Educationand Institute for Frontier ScienceNanjing University of Aeronautics and AstronauticsNanjingChina

Developing high-performance nanostructured materials is key to deliver the potential of hydrovoltaic technology into practical *** single-component materials have approached its limit in generating hydrovoltaic electricity,the development of multi-component hydrovoltaic materials has been necessary in continuously boosting the electricity ***,we report a hydrovoltaic material by integrating reduced graphene oxides and polypyrrole nanoparticles(rGO/PPy),where the rGO contributes improved conductivity and large specific surface area while PPy nanoparticles enable enhanced interaction with *** device fabricated with this material generates a short-circuit current of 6μA as well as a maximum power density of over 1μW/cm3 from natural evaporation of *** the substantial ion-PPy interaction enables robust voltage generation from evaporation of various salt ***,an outstanding scaling ability is demonstrated by connecting 10 devices in series that generate a sustainable voltage of up to~2.5 V,sufficing to power many commercial devices,*** bulb and LCD screen.

关键词： Hydrovoltaic generator water evaporation reduced graphene oxide Ppy nanoparticles

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离子色谱法测定水汽中有机酸和无机阴离子

工业水处理 2019年第10期39卷 100-103页

作者：慕晓炜张达光陈皓蒋春晓梁琳琳彭巧玲曹顺安钟杰中国大唐集团科学技术研究院有限公司华东电力试验研究院安徽合肥230022 武汉大学动力与机械学院湖北武汉430072

提出了采用离子色谱法同时检测热力系统水汽中的甲酸、乙酸、丙酸、丁酸、乳酸及无机阴离子。选用IonPac AS11-HC阴离子分析柱对样品进行分离,并用KOH溶液作为淋洗液进行梯度淋洗。研究表明,9种组分的质量浓度在0.05~0.8 mg/L范围内呈线... 详细信息

提出了采用离子色谱法同时检测热力系统水汽中的甲酸、乙酸、丙酸、丁酸、乳酸及无机阴离子。选用IonPac AS11-HC阴离子分析柱对样品进行分离,并用KOH溶液作为淋洗液进行梯度淋洗。研究表明,9种组分的质量浓度在0.05~0.8 mg/L范围内呈线性,方法检出限为0.009~0.02 mg/L,各组分测量值精密度为0.77%~1.50%。采用该方法测定腐殖酸的高温分解水样,并进行实际样品回收率试验,测得回收率在85.0%~110%。

关键词：离子色谱火电厂有机酸无机阴离子