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Electrical Responses and Stable Behavior of Polyaniline-polyurethane Concave Lens Array Film in Electrolyte

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Chemical Research in Chinese Universities 2015年第4期31卷 680-684页

作者： MENG Xiaomin YANG Xiaohang WANG hongjuan jia Ruokun College of Chemical Engineering Northeast Dianli University Jilin 132012 P. R. China

We present a synthetic methodology of polyaniline-polyurethane（PANI-PU） copolymer using interfacial in situ polymerization. PANI-PU copolymer was obtained through in situ polymerization of aniline precursor and the concave lens array film was molded by water drops. The fabrication of unique structured film was obtained through a solvent evaporation self-formed system. The detailed nanostructures of the film were illustrated by scanning electron microscopy（SEM） images, which showed homogeneous structure in a close-packed hexagonal arrangement. The di- mension of well-structured hexagon ranged from 10.8 ~tm to 12.9 lxm. Sensitive electrical responses of the concave lens array film resulted in the changes of swelling/shrinkage ratio in electrolyte under various conditions. Dimen- sional control of the film was achieved via adjusting a series of parameters including time, voltage, concentration and type of electrolyte. The electrical responses resulted rearranged molecular chain caused by redox reaction via powered PANI. Most importantly, the film maintained its response characteristics after 16 cycles. The high stability of film could be directly attributed to PU doping, which could help the PANI enhancing the mechanical strength and chemical solubility in solution.

关键词： Polyaniline-polyurethane(PANI-PU) copolymer Concave lens array film Electrical response Highstability

双/四焊枪堆焊设备研发及三机槽体再制造应用

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陕西煤炭 2024年第10期43卷 168-171,184页

作者：贾红娟殷智昆王祥龙李俊陕西彬长矿业集团有限公司生产服务中心陕西咸阳713600

刮板机、破碎机和转载机的槽体作为综采设备的核心过煤部件,经受着苛刻的磨损损伤,其服役寿命直接影响煤矿的安全和稳定生产。然而以单焊枪堆焊设备为主体的三机槽体中板、底板、W形侧槽帮处磨损的再制造维修存在焊接工作量大、劳动强... 详细信息

刮板机、破碎机和转载机的槽体作为综采设备的核心过煤部件,经受着苛刻的磨损损伤,其服役寿命直接影响煤矿的安全和稳定生产。然而以单焊枪堆焊设备为主体的三机槽体中板、底板、W形侧槽帮处磨损的再制造维修存在焊接工作量大、劳动强度高、操作环境恶劣等问题,亟需进行提升改造。通过升级双/四焊枪设备及相匹配的控制系统,实现了三机槽体中板、底板4条耐磨带的同时焊接再制造,大幅提升三机槽体的焊接再制造效率。通过焊枪定位系统还实现了底板耐磨带的自动补焊,显著改善了“口”字型槽体底板的焊接再制造加工质量。双/四焊枪堆焊设备在彬长生产服务中心的实践表明,单班维修槽体效率较原单焊枪模式提高4倍,助力了煤矿装备大修质量提升以及再制造产品转型升级。

关键词：煤矿装备大修三机槽体双/四焊枪堆焊设备焊接再制造

不稳定型心绞痛患者血清RBP-4、Lp-PLA2水平及依折麦布治疗影响研究

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中国循证心血管医学杂志 2024年第9期16卷 1070-1074页

作者：张立杰王晓玲宋巧凤贾洪娟张振飞周文华张文静唐山市人民医院心内科唐山063001 重庆两江新区人民医院心内科重庆401121

目的探究不稳定型心绞痛(UA)患者血清视黄醇结合蛋白-4(RBP-4)、脂蛋白相关磷脂酶A2(Lp-PLA2)水平及依折麦布治疗影响。方法选取2021年1月至2023年1月于唐山市人民医院心内科确诊的UA患者84例为研究对象,其中男性48例,女性36例;根据冠... 详细信息

目的探究不稳定型心绞痛(UA)患者血清视黄醇结合蛋白-4(RBP-4)、脂蛋白相关磷脂酶A2(Lp-PLA2)水平及依折麦布治疗影响。方法选取2021年1月至2023年1月于唐山市人民医院心内科确诊的UA患者84例为研究对象,其中男性48例,女性36例;根据冠状动脉病变程度分为:Gensini评分0.05);治疗3个月、6个月,两组TC、TG、LDL-C的水平均降低(P0.05);治疗3个月、6个月,两组RBP-4、Lp-PLA2水平均降低(P<0.05),且观察组RBP-4、Lp-PLA2水平低于对照组,差异有统计学意义(P<0.05)。④观察组心血管事件发生率(7.14%)低于对照组(23.81%),差异有统计学意义(P<0.05)。结论UA患者血清RBP-4、Lp-PLA2水平与冠状动脉病变程度相关,依折麦布可改善不稳定型心绞痛患者的脂代谢水平,调节血清RBP-4、Lp-PLA2水平,减少心血管事件发生。

关键词：不稳定型心绞痛依折麦布视黄醇结合蛋白-4 脂蛋白相关磷脂酶A2

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基于MATLAB的花粉形态量化分析

植物学通报 2007年第4期24卷 511-515页

作者：贾红娟张军文河北师范大学资源与环境科学学院石家庄050016 军械工程学院石家庄050003

利用数字照相技术和MATLAB软件测量了5种杨树、3种柏树各50粒花粉的面积、扁圆率、极轴长度、赤道轴长度,计算了面积标准差和极轴长度/赤道轴长度。对8种花粉的面积作了方差分析。结果显示,在99%置信水平上用面积能区分8种花粉。用5种... 详细信息

利用数字照相技术和MATLAB软件测量了5种杨树、3种柏树各50粒花粉的面积、扁圆率、极轴长度、赤道轴长度,计算了面积标准差和极轴长度/赤道轴长度。对8种花粉的面积作了方差分析。结果显示,在99%置信水平上用面积能区分8种花粉。用5种杨树花粉的扁圆率平均值、极轴平均值、赤道轴平均值和P/E值作聚类分析,聚类结果显示,5种杨树可分成3组,加拿大杨和小叶杨是一组,毛白杨和山杨是一组,青杨单独为一组。电镜观察纹饰特点与以上聚类结果一致。本研究为定量研究花粉形态提供了一种快速有效的方法及更多的有效数据,比目测精确度提高了10倍。

关键词：聚类分析数字照片 MATLAB 花粉形态方差分析

Assessing environmental impact:Micro-energy network optimization in a Chinese industrial park

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Chinese Journal of Population,Resources and Environment 2024年第1期22卷 68-73页

作者： Guanzhun Cao Chuan Feng Tong Li hongjuan Zhang Xiaoyao Guo Wen Li Yanshuang jia Leping Chen Yuan Xu Qingsong Wang Guifang Chen Xueliang Yuan China Tobacco Shandong Industrial Co. Ltd.Jinan 250104China Shandong Academy of Environmental Sciences Jinan 250109China Shandong Electrical Engineering&Equipment Group Co. Ltd.Jinan 250001China School of Energy and Power Engineering Shandong UniversityJinan 250061China

Micro-energy systems contribute significantly to environmental improvement by reducing dependence on power grids through the utilization of multiple renewable energy *** study quantified the environmental impact of a micro-energy network system in an industrial park through a life cycle assessment using the operation of the micro-energy network over a year as the functional unit and“cradle-to-gate”as the system *** on the baseline scenario,a natural gas generator set was added to replace central heating,and the light pipes were expanded to constitute the optimized *** results showed that the key impact categories for both scenarios were global warming,fine particulate matter formation,human carcinogenic toxicity,and human non-carcinogenic *** overall environmental impact of the optimized scenario was reduced by 68%compared to the baseline scenario.A sensitivity analysis of the key factors showed that electricity from the power grid was the key impact factor in both scenarios,followed by central heating and natural ***,to reduce the environmental impact of network systems,it is necessary to further optimize the grid power *** research approach can be used to optimize micro-energy networks and evaluate the environmental impact of different energy systems.

关键词： Micro-energy network Life cycle assessment Optimal operation Environmental impact

New evidence of agricultural activity and environmental change associated with the ancient Loulan kingdom,China,around 1500 years ago

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New evidence of agricultural activity and environmental chan...

某水库工程泄洪排沙洞出口消能防冲方案模型验证及优化设计

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Xiaoguang Qin jiaqi Liu hongjuan jia Houyuan Lu Xuncheng Xia Liping Zhou Guijin Mu Qinghai Xu Yinxin jiao Key Laboratory of Cenozoic Geology and Environment Institute of Geology and GeophysicsChinese Academy of Sciences Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Peking University Heibei Normal University

The ancient kingdom of Loulan on China’s Silk Road has disappeared for about 1500 *** records have documented widespread cultivation in Loulan which supported the kingdom’s prosperity for hundreds of ***,no farmland ruins have been found although the ancient Loulan city was discovered more than 100 years *** this study,remotely sensed,geomorphic and geological observations of possible farmlands in Loulan were analyzed.A wide distribution of partly preserved plots with recognizable regular and straight boundaries,the existence of crossed canals,the occurrence of a gypseous incrustation layer(GIL) overlying on the surface of farmland-like blocks,and extracted large-sized pollen grains of cultivated grass from GIL samples provide new evidence for the ancient *** observations revealed that the upper cultivated soil layer overlaid on GIL,*** horizon A,had been wind-eroded and GIL is the ruined soil horizon *** new findings point to a well-developed agriculture of the ancient Loulan kingdom. The size and distribution of the farmlands and the thickness of the GIL suggests that irrigation for cultivation in this currently exceedingly arid area had lasted for a long *** and lacustrine sediments in Loulan area deposited during the about 4 to—8 ka BP period,revealing that the wet Holocene optimum and two arid events of about 4 and 8 ka BP occurred in the westerlies-dominated northwest *** Loulan kingdom period was another wet stage when the ecological environment was the typical cultivated grass of oasis near *** insufficiency of water during the late period of the Loulan kingdom led the decline of irrigation agriculture and finally the renunciation of the kingdom.

关键词： ancient Loulan cultivation large sized pollen Lop Nur of Xinjiang paleoclimate ruined farmland

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水利规划与设计 2020年第7期 96-101页

作者：贾红娟甘肃省水利水电勘测设计研究院有限责任公司甘肃兰州730000

通过对某水库泄洪洞出口挑流消能工进行水工模型试验发现,挑流水舌底部会间歇性受底部水体的影响,水流集中,不利于下游河道消能防冲。调整泄洪洞挑坎高度及挑角后,挑流水舌不再受底部水体的影响,挑流消能的效果较好。今后在挑流消能体... 详细信息

通过对某水库泄洪洞出口挑流消能工进行水工模型试验发现,挑流水舌底部会间歇性受底部水体的影响,水流集中,不利于下游河道消能防冲。调整泄洪洞挑坎高度及挑角后,挑流水舌不再受底部水体的影响,挑流消能的效果较好。今后在挑流消能体型设计时应充分考虑下游地形及下泄水流在各工况下的实际流态情况,以便类似工程避免出现不利情况。

关键词：泄洪洞消能型式挑流消能消能防冲模型试验

楼兰佛塔剖面10.84kaB.P.以来的环境变迁

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第四纪研究 2010年第1期30卷 175-184页

作者：贾红娟秦小光刘嘉麒中国科学院地质与地球物理研究所新生代地质与环境重点实验室北京100029

新疆楼兰佛塔剖面(40°30.980′N,89°54.849′E)深度6m,以5cm间距采样,共采121个样,进行了粒度、总碳、无机碳、有机碳、氮含量分析,根据光释光年龄结果内插得出剖面时间跨度为10.84～4.69kaB.P.,剖面气候环境可划分为3个阶段:10.84～1... 详细信息

新疆楼兰佛塔剖面(40°30.980′N,89°54.849′E)深度6m,以5cm间距采样,共采121个样,进行了粒度、总碳、无机碳、有机碳、氮含量分析,根据光释光年龄结果内插得出剖面时间跨度为10.84～4.69kaB.P.,剖面气候环境可划分为3个阶段:10.84～10.13kaB.P.为高湖面湿润时期;10.13～7.45kaB.P.沉积间断,气候干旱;7.45～4.69kaB.P.罗布泊气候相对湿润,其间湖泊存在多次的收缩与扩张,湖面扩张是短时间快速完成的,湖面衰退是逐渐变化的。楼兰佛塔剖面顶部年龄为4.69kaB.P.,此区发现的石器基本为地表采集,年代不会早于4.69kaB.P.。

关键词：楼兰罗布泊环境变迁全新世

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浅析大流量填方动力引水明渠临河侧防护设计

陕西水利 2020年第6期 98-99,103页

作者：贾红娟甘肃省水利水电勘测设计研究院有限责任公司甘肃兰州730000

锦屏水电站填方动力引水渠道临河侧渠堤稳定对工程效益的发挥具有非常重要的影响。以白龙江锦屏水电站为例,结合该地区的地形地质条件,对其动力引水明渠的布置及临河侧防护型式进行分析,提出方案三为最优方案。该方案既保证了工程的安... 详细信息

锦屏水电站填方动力引水渠道临河侧渠堤稳定对工程效益的发挥具有非常重要的影响。以白龙江锦屏水电站为例,结合该地区的地形地质条件,对其动力引水明渠的布置及临河侧防护型式进行分析,提出方案三为最优方案。该方案既保证了工程的安全运行,又考虑了景观效果,可为类似工程的设计提供借鉴。

关键词：动力引水渠填方防护挡墙