检索结果-南通市图书馆

Acta Oceanologica Sinica 2006年第5期25卷 55-62页

作者： sun peiyan BAO Mutai GAO Zhenhui LI Mei ZHAO Yuhui WANG Xinping ZHOU Qing WANG Xiulin Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education Ocean University of China Qingdao266003 China North China Sea Monitoring Center State Oceanic Administration Qingdao 266033 China

By gas chromatogram, six crude oils fingerprinting distributed in four oilfields and four oil platforms were analyzed and the corre- sponding normal paraffin hydrocarbon （ including pristane and phytane） concentration was obtained by the internal standard methed. The normal paraffin hydrocarbon distribution patterns of six crude oils were built and compared. The cluster analysis on the normal paraffin hydrocarbon concentration was conducted for classification and some ratios of oils were used for oils comparison. The results indicated： there was a clear difference within different crude oils in different oil fields and a small difference between the crude oils in the same oil platform. The normal paraffin hydrocarbon distribution pattern and ratios, as well as the cluster analysis on the nomad paraffin hydrocarbon concentration can have a better differentiation result for the crude oils with small difference than the original gas chromatogram.

关键词： oil fingerprinting identification gas chromatogram normal paraffin hydrocarbons distribution pattern ratio cluster analysis

Deep eutectic solvent-based gel electrolytes for flexible electrochromic devices with excellent high/low temperature durability

在线全文

学校读者我要写书评

暂无评论

InfoMat 2023年第2期5卷 11-21页

作者： peiyan sun Jian Chen Yaowu Li Xueqing Tang Hongzhao sun Ge Song Xinyang Mu Taoyang Zhang Xiuling Zha Feifan Li Yanfeng Gao Shan Cong Zhigang Zhao School of Materials Science and Engineering Shanghai UniversityShanghaiPeople's Republic of China Key Lab of Nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhouChina

With the increasing interest in the application of electrochromism to flexible and wearable electronics in recent years,flexible electrochromic devices(ECDs)that can function at extreme temperatures are ***,the functionalities of flexible ECDs are severely hampered by the inadequate choice of electrolytes,which might ultimately result in performance fading during low-and high-temperature ***,we develop a deep eutectic solvent(DES)-based gel electrolyte that can maintain its optical,electrical,and mechanical properties over a wide range of temperatures(-40 to 150℃),exhibiting an extremely high visible-range transmittance over 90%,ion conductivity of 0.63 mS cm^(-1),and fracture strain exceeding 2000%.Owing to the excellent processability of the DES-based electrolytes,provided by dynamic interactions such as the lithium and hydrogen bonding between the DES and polymer matrix,a directly written patterning in ECDs is realized for the first *** fabricated ECDs exhibit an excellent electrochromic behavior superior to the behavior of the ECDs fabricated with traditional gel *** introduction of such DES-based electrolytes is expected to pave the way for a widespread application of electrochromic products.

关键词： deep eutectic solvent direct writing electrolyte flexible electrochromic devices temperature durability

Application of a Step-by-Step Fingerprinting Identification Method on a Spilled Oil Accident in the Bohai Sea Area

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2011年第1期10卷 35-41页

作者： sun peiyan GAO Zhenhui CAO Lixin WANG Xinping ZHOU Qing ZHAO Yuhui LI Guangmei Key Laboratory of Marine Spill Oil Identification and Damage Assessment Technology SOA Qingdao 266000 P. R. China North China Sea Environmental Monitoring Center of State Oceanic Administration Qingdao 266000 P. R. China

In recent years,oil spill accidents occur frequently in the marine area of *** out the spilled oil source is a key step in the relevant *** this paper,a step-by-step fingerprinting identification method was used in a spilled oil accident in the Bohai Sea in *** chemical fingerprinting and data interpretation techniques were used to characterize the chemical composition and determine the possible sources of two spilled oil *** original gas chromatography -flame ionization detec-tion (GC-FID) chromatogram of saturated hydrocarbons was *** gas chromatography-mass spectrometry (GC/MS) chromatograms of aromatic hydrocarbons terpane and sterane,n-alkane and poly-aromatic hydrocarbons (PAHs) were *** correlation analysis on diagnostic ratios was performed with Student’s *** is found that the oil fingerprinting of the spilled oil (designated as sz1) from the polluted sand beach was identical with the suspected oil (designated as ky1) from a nearby crude oil refinery *** both showed the fingerprinting character of mixed *** oil fingerprinting of the spilled oil (designated as ms1) collected from the port was significantly different from oil ky1 and oil sz1 and was with a lubricating oil fingerprint *** identification result not only gave support for the spilled oil investigation,but also served as an example for studying spilled oil accidents.

关键词： step-by-step fingerprinting identification saturated hydrocarbons poly-aromatic hydrocarbons biomarkers Student'st-test

ITO/Cu multilayer electrodes for high-brightness electrochromic displays

在线全文

学校读者我要写书评

暂无评论

eScience 2022年第6期2卷 632-638页

作者： Xueqing Tang Zishou Hu Zhen Wang Jian Chen Xinyang Mu Ge Song peiyan sun Zhengji Wen Jiaming Hao Shan Cong Zhigang Zhao School of Nano-Tech and Nano-Bionics University of Science and Technology of Chin1Hefei 230000China Key Laboratory of Multifunctional Nanomaterials and Smart Systems Chinese Academy of Sciences(CAS)Suzhou 215123China Key Lab of Nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Division of Nanomaterials Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesNanchang 330200China State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China

Fabry-Perot(F-P)nanocavity-type electrochromic devices with multicolor tunability have attracted significant interest in the past two years for their potential uses in a wide variety of applications,such as electronic display,military camouflage,and dynamic ***,challenges such as insufficient brightness,lengthy switching times,and poor cycling stability have yet to be ***,we demonstrate electrochromic electrodes based on ITO/Cu as both the current collector and the reflective layer,with WO_(3 )as the electrochromic material,forming a unique three-layered *** constituted WO_(3 )/ITO/Cu films present a high brightness value of about 84%before coloration,and a decent brightness value of 48%after coloration at−0.8***,a fast switching time between different coloration states(tc=2.2s;tb=1s)is recorded,attributed to the extremely low sheet resistivity of the ITO/Cu current *** films also reveal excellent electrochemical cycling stability across 2000 cycles.

关键词： Electrochromic High brightness Tungsten trioxide Copper

Petroleum Distribution in Water Area of Jiaozhou Bay

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Meteorological and Environmental Research 2013年第12期4卷 49-51页

作者： Dongfang Yang peiyan sun Lian Ju Xiao Geng Lei Gao North Sea Environmental Monitoring Center State Oceanic Administration College of Fisheries and Life Sciences Shanghai Ocean University College of Marine Science Zhejiang Ocean University

[Objective]The research aimed to study petroleum distribution in water area of Jiaozhou Bay. [Method]According to investigation data in water area of Jiaozhou Bay in June,July,September and October of 1980,the content,distribution characteristics and reason of petroleum in surface and bottom water body of Jiaozhou Bay were analyzed. [Result]Petroleum pollution in water area of Jiaozou Bay was serious. Petroleum hydrocarbon concentration in surface water body of Jiaozhou Bay in June,July,September and October was during 0. 0120. 155 mg /L,showing that petroleum hydrocarbon concentration in surface water body of Jiaozhou Bay reached national class-two seawater quality standard. The isoline of petroleum hydrocarbon concentration in surface water body in July and September formed a series of parallel lines at different gradients. Petroleum hydrocarbon concentration in surface water body gradually decreased from northeast shore to southwest bay mouth,and isoline mainly concentrated near the mouths flowing into sea of Loushan River,Licun River and Haibo River. [Conclusion]The research could provide basic data for marine environmental management and scientific decision-making in the sea area.

关键词： Jiaozhou Bay Petroleum Distribution characteristics China

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

明清水陆画所绘之染织纹样研究

丝绸 2014年第8期51卷 57-62页

作者：孙培彦袁宣萍浙江工业大学艺术学院杭州320023

水陆画是在水陆法会中使用的绘有佛、儒、道三教人物的宗教绘画。中国水陆画主要分布于北京、山西等地。文章以106幅首都博物馆藏明清水陆画及136幅宝宁寺明代水陆画为研究对象,着重对其所绘之染织纹样的装饰部位、装饰题材、纹样风格... 详细信息

水陆画是在水陆法会中使用的绘有佛、儒、道三教人物的宗教绘画。中国水陆画主要分布于北京、山西等地。文章以106幅首都博物馆藏明清水陆画及136幅宝宁寺明代水陆画为研究对象,着重对其所绘之染织纹样的装饰部位、装饰题材、纹样风格进行了归纳分析,并对部分常见纹样进行复原整理。研究认为:明清水陆画中所绘之染织纹样具有装饰繁缛、题材丰富、色彩富丽、装饰部位多样等特征,同时与同时代实物对照,具有相当强度的真实性,并受世俗染织纹样影响明显。

关键词：明清水陆画宗教绘画染织纹样复原

小波分析与因子分析对吸收光谱去噪性能比较的初步观察

在线全文

学校读者我要写书评

暂无评论

光谱学与光谱分析 1999年第3期19卷 260-263页

作者：潘忠孝孙培艳王永明张懋森中国科学技术大学应用化学系

本文就因子分析和小波分析对吸收光谱的去噪能力进行了比较，并考察了此两种技术的不同联合方式的去噪功能，获得了一些初步的结果。

关键词：因子分析去噪小波分析吸收光谱光谱分析

在线全文

学校读者我要写书评

暂无评论

浅谈微课在中职计算机教学中的应用

电脑与电信 2017年第4期 71-72页

作者：孙培彦太原慈善职业技术学校山西太原030031

随着信息技术的飞速发展,当今社会需要综合素质较高的技能型人才,传统的以教师为主的教学方法已经不能适应现在个体差异明显的中职学生。针对社会的需求和学生的实际情况,更新教育理念、专研新的教学方法对中职教师来说已经刻不容缓。... 详细信息

随着信息技术的飞速发展,当今社会需要综合素质较高的技能型人才,传统的以教师为主的教学方法已经不能适应现在个体差异明显的中职学生。针对社会的需求和学生的实际情况,更新教育理念、专研新的教学方法对中职教师来说已经刻不容缓。主题突出、内容具体、资源丰富、多样传播的微课给中职计算机教育带来了不小的冲击。本文主要探索微课在中职计算机教学中的应用。实践证明,微课教学取得的教学成果良好。

关键词：中职教育计算机微课

多学科诊疗模式在胃肠道恶性肿瘤中的应用价值

在线全文

学校读者我要写书评

暂无评论

河南医学研究 2018年第21期27卷 3854-3857页

作者：孙培焱张伟吴刚孙培春郑州大学人民医院胃肠外科河南郑州450000

目的探讨多学科诊疗模式对胃肠道恶性肿瘤患者首次治疗前时间的影响。方法回顾性分析2016年9月至2017年12月于郑州大学人民医院经多学科团队(MDT)会诊的胃肠道恶性肿瘤患者及同时期未经MDT会诊的患者的临床资料。接受过MDT会诊的消化道... 详细信息

目的探讨多学科诊疗模式对胃肠道恶性肿瘤患者首次治疗前时间的影响。方法回顾性分析2016年9月至2017年12月于郑州大学人民医院经多学科团队(MDT)会诊的胃肠道恶性肿瘤患者及同时期未经MDT会诊的患者的临床资料。接受过MDT会诊的消化道肿瘤患者纳入MDT组,对照组患者未经MDT会诊,按1∶1与MDT组匹配。共入组148例患者,两组各74例。统计并比较两组患者的性别、年龄、首诊科室、病理诊断、影像学诊断、临床分期、入院日期、病理诊断报告日期、MDT讨论日期、开始治疗日期、首选治疗模式等。结果两组各纳入胃癌、结肠癌及直肠癌21、24、29例,两组患者性别、年龄、临床分期、首诊科室、入院-诊断明确时间间隔相比,差异无统计学意义(均P> 0. 05)。MDT组诊断明确-首次治疗时间间隔长于对照组,差异有统计学意义(P <0. 05); MDT组入院-首次治疗时间间隔长于对照组,差异有统计学意义(P <0. 05)。MDT组患者首选根治性手术的比例小于对照组,首选放化疗的比例大于对照组,差异有统计学意义(均P <0. 05)。结论在消化道恶性肿瘤的诊治中,MDT模式的引入稍延长了诊断明确与首次治疗的时间间隔,但促进了消化道肿瘤尤其是直肠癌的规范诊疗,高效规范运作MDT团队是患者利益最大化的保障。

关键词：胃肠道恶性肿瘤多学科诊疗团队效率

在线全文

学校读者我要写书评

暂无评论

汽油机无节气门SVSC系统的仿真分析

内燃机与动力装置 2019年第3期36卷 13-19页

作者：杨洪枣孙培岩大连理工大学能源与动力学院

设计一种无传统节气门的新型串联气门速度控制(series valve speed control,SVSC)系统替代点燃式发动机传统节气门式进气系统,在一定范围内实现气门正时连续变化,降低发动机中小负荷时进气过程的泵气损失,提高燃油经济性。以试验数据为... 详细信息

设计一种无传统节气门的新型串联气门速度控制(series valve speed control,SVSC)系统替代点燃式发动机传统节气门式进气系统,在一定范围内实现气门正时连续变化,降低发动机中小负荷时进气过程的泵气损失,提高燃油经济性。以试验数据为参数,基于数值模拟软件GT-power搭建某单缸汽油机模型,并基于Ansys-fluid软件进行数值分析。通过对比SVSC和节气门2个进气系统整个工作循环的示功图和各状态参数、内部流体的压力、速度、温度云图等,分析2种系统在相同工况下的泵气损失以及内部的流体状态。结果表明:发动机在相同状态的中小负荷下,与传统节气门式进气相比,SVSC系统内部流体的节流损失小,进气前后的压差和进气过程中的泵气损失小,燃油消耗率低,发动机的燃油经济性好。

关键词：可变气门正时节气门 SVSC系统泵气损失燃油经济性