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Zeolites for the separation of ethylene,ethane,and ethyne

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Frontiers of Chemical Science and Engineering 2024年第9期18卷 137-146页

作者： Binyu Wang Qiang Li haoyang zhang Jia-Nan zhang Qinhe Pan Wenfu Yan State Key Laboratory of Inorganic Synthesis&Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China Key Laboratory of Advanced Energy Catalytic and Functional Materials Preparation College of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450012China Key Laboratory of Advanced Materials of Tropical Island Resources(Ministry of Education) School of Chemistry and Chemical EngineeringHainan UniversityHaikou 570228China

The cost-effective separation of ethylene(C_(2)H_(4)),ethyne(C_(2)H_(2)),and ethane(C_(2)H_(6))poses a significant challenge in the contemporary chemical *** contrast to the energy-intensive high-pressure cryogenic distillation process,zeolite-based adsorptive separation offers a low-energy *** review provides a concise overview of recent advancements in the adsorptive separation of C_(2)H_(4),C_(2)H_(2),and C_(2)H_(6)using zeolites or zeolite-based *** commences with an examination of the industrial significance of these compounds and the associated separation ***,it systematically examines the utilization of various types of zeolites with diverse cationic species in such separation *** then it explores how different zeolitic structures impact adsorption and separation capabilities,considering principles such as cation-πinteraction,π-complexation,and steric separation concerning C_(2)H_(4),C_(2)H_(2),and C_(2)H_(6)***,it discusses methods to enhance the separation performance of zeolites and zeolite-based adsorbents,encompassing structural design,modifications,and ion exchange ***,it summarizes current research trends and future directions,highlighting the potential application value of zeolitic materials in the field of C_(2)H_(4),C_(2)H_(2),and C_(2)H_(6)separation and offering recommendations for further investigation.

关键词： zeolite ethylene ethane cation-πinteraction π-complexation

A Novel Approach of Electromagnetic Compatibility Conducted Susceptibility Analysis Based on Gaussian Even Pulse Signal

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Chinese Journal of Electronics 2024年第2期33卷 472-478页

作者： Youwei MENG Yanhua PENG haoyang zhang Lilin LI Donglin SU The School of Electronic and Information Engineering Beihang University The Institute of Electromagnetic Compatibility Technology Beihang University The Research Institute for Frontier Science Beihang University

The purpose of the electromagnetic compatibility conducted susceptibility test for interconnected cables in the system is to evaluate its ability to operate acceptably when subjected to interference. We propose a novel conducted susceptibility analysis approach: by injecting the Gaussian even pulse signal, we find that the susceptibility threshold of the system shows two different patterns with the change of signal parameters; then we locate the cause of the susceptibility of the device by analyzing the threshold level curves. The effectiveness of the proposed approach is verified by testing with devices containing digital modules such as navigation receivers. The proposed approach facilitates a deeper understanding of the susceptibility mechanism of systems and their appropriate electromagnetic compatibility design.

关键词： Analytical models Navigation Interference Receivers Electromagnetic compatibility Physical layer Time-domain analysis

Preventive and therapeutic effectiveness of Sanfu acupoint herbal patching for chronic obstructive pulmonary disease at stable stages:a systematic review and Meta-analysis

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Journal of Traditional Chinese Medicine 2020年第4期40卷 530-549页

作者： Pang Lijian zhang haoyang Lu Xiaodong Liu Jianping Liu Chuang Lu Ling Beijing University of Chinese Medicine Beijing 100029China Affiliated Hospital of Liaoning University of Traditional Chinese Medicine Shenyang 110032China Liaoning University of Traditional Chinese Medicine Shenyang 110033China Center for Evidence Based Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China

OBJECTIVE:To evaluate the preventive and therapeutic effects of Sanfu acupoint herbal patching(SAHP)in adjuvant treatment in patients with stable chronic obstructive pulmonary disease(COPD).METHODS:We had searched eight electronic databases and six major trial registries from their inception to July 2017 for randomized controlled trials(RCTs).We utilized RevMan 5.3 to evaluate the methodological quality and to perform data ***:A total of 28 RCTs involving 1615 records were included in the descriptive analysis,and 25 RCTs were performed for *** function such as forced vital capacity rate of one second FEV1/predicted%,forced vital capacity(FVC)%found no significant *** results of Meta-analysis showed that SAHP plus conventional therapy(CT)in the treatment of stable COPD were better than CT,in second sessions'data of FEV1,in third sessions'data of FEV1/FVC,in three sessions'data of SGRQ,in third session's data of Modified Medical Research Council and *** symptoms of SAHP's adverse reactions seem to be mild and the incidence of that seems to be *** analysis shows that SAHP with CT seems to improve clinical effective rate and had a certain preventive effect on acute exacerbation of COPD,which the curative effect may be better with the increase of treatment ***:SAHP with CT appears to be more effective than CT or CT plus placebo only on improving the quality of life,but the effect on lung function is not *** clinical effective rate and preventive effect is *** with CT may be used in any Grade to safely treat patients with stable *** more exactly clinical effect still needs to be proved by more high-quality,large sampling,multilingual RCTs.

关键词： Pulmonary disease,chronic obstructive Acupoint sticking therapy Randomized controlled trials Systematic review

The Association between Meteorological Factors and the Prevalence of Acute-on-chronic Liver Failure:A Population-based Study,2007-2016

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Journal of Clinical and Translational Hepatology 2019年第4期7卷 341-345页

作者： Su Lin Lifen Han Dongliang Li Ting Wang Zimu Wu haoyang zhang Zhansong Xiao Yinlian Wu Jiaofeng Huang Mingfang Wang Yueyong Zhu Liver Research Center of the First Affiliated Hospital of Fujian Medical University FuzhouFujianChina Department of Infectious Disease Mengchao Hepatobiliary Hospital of Fujian Medical UniversityFuzhouFujianChina Department of Hepatobiliary Disease 900 Hospital of PLAFuzhouFujianChina School of Public Health Sun Yat-sen UniversityGuangzhouGuangdongChina Fujian Medical University FuzhouFujianChina

Background and Aims:The aim of this study was to inves-tigate the effect(s)of meteorological factors on the preva-lence of acute-on-chronic liver failure(ACLF)based on 10-years'worth of population ***:We retrospec-tively collected ACLF case data from January 2007 to Decem-ber 2016 from three major hospitals in Fuzhou City,*** data,including rainfall,mean temperature,differen-ces in temperature(delta temperature)and mean humidity for each month were downloaded from the China Climatic Data Service *** data collection,Poisson regression analysis was used to estimate the effect(s)of climatic factors on the risk of the prevalence of ***:The population consisted of a total of 3510 cases,with a mean age of 44.7±14.8 years-old and with 79.8%being *** analyzing the population data,we found a growing trend and seasonal pattern of monthly counts of ACLF-related hospitalization throughout the past ***,the primary peak of ACLF prevalence was in January and the secondary peak was in *** regression showed mean temperature(risk ratio=0.991,95%CI=0.986–0.996)and mean humidity(risk ra-tio=1.011,95%CI=1.006–1.017)to be independently cor-related with the monthly cases of *** results suggest that every unit increase of mean temperature(1°C)and mean humidity(1%)are associated with 0.991-and 1.011-fold changes of ACLF cases,*** and delta temper-ature did not appear to affect the prevalence of this ***:The hospitalization for ACLF peaks in January and *** temperature and high humidity appear to func-tion as factors contributing to this seasonal pattern.

关键词： Acute-on-chronic liver failure Seasonal variation Temperature Humidity

Investigation on bubble dynamics characteristics and power spectral variation in acoustic field

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Chinese Journal of Acoustics 2013年第2期32卷 115-132页

作者： YANG Desen SHI Jie SHI Shengguo zhang haoyang JIANG Wei JIN Shiyuan Science and Technology on Underwater Acoustic Laboratory Harbin Engineering University

Based on Keller-Miksis model, the influences of multiple control parameters, such as acoustic pressure amplitude, acoustic frequency and bubble radius at rest, on the complicated dynamics characteristics of nonlinear bubble oscillation driven by acoustic wave are discussed by utilizing a variety of numerical analysis methods, and the restrictive relationships among different parameters are analyzed. It is shown that chaotic state can occur only in the condition of all of the parameters in the suitable threshold, as the same time, chaotic state is the result of interaction of multiple control parameters. Fhrthermore, the power spectral expansion and energy conversion are existed in this nonlinear system. It is certified that the stronger acoustic pressure amplitude, the greater the sub-harmonic energy, besides, the energy attenuation of fundamental harmonic is also much *** numbers： 43.25, 43.35, 05.45

关键词： kHz

Direct hydrothermal synthesis of Mo-containing MFI zeolites using Mo-EDTA complex and their catalytic application in cyclohexene epoxidation

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Chinese Journal of Catalysis 2021年第12期42卷 2265-2274页

作者： haoyang zhang Lifen Xu Xinyu Chang Songsong Miao Yuting Sun Mingjun Jia Key Laboratory of Surface and Interface Chemistry of Jilin Province College of ChemistryJilin UniversityChangchun 130012JilinChina

A series of Mo-containing MFI zeolites with different Mo loadings(Mo-MFI-n,n represent the initial Si/Mo molar ratio)was hydrothermally synthesized by using tetrapropylammonium hydroxide as the template and Mo-EDTA complex as the Mo *** characterization results demonstrated that the use of the Mo-EDTA complex is beneficial for the incorporation of more Mo species into the MFI-type *** special complexing capability of EDTA^(2–)plays a critical role in adjusting the release rate of the Mo species to combine with the Si tetrahedron species during the zeolite growth process,thus leading to a uniform distribution of Mo in the MFI *** addition,a small portion of extra-framework Mo clusters may be distributed inside the channels or near the pore window of the *** catalytic properties of these Mo-containing MFI zeolites were evaluated for the epoxidation of cyclohexene with H_(2)O_(2)as the *** composition-optimized catalyst,Mo-MFI-50,efficiently converted cyclohexene to the corresponding epoxide with a relatively high conversion(93%)and epoxide selectivity(82%)at 75℃after 9 h of ***,the resultant Mo-containing MFI catalyst exhibited excellent structural stability and recoverability and was easily recycled by simple filtration without the need for calcination treatment.

关键词： MFI zeolite Molybdenum catalyst Ethylenediamine tetraacetic sodium Cyclohexene Epoxidation

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基于褶皱结构的可拉伸有机电致发光器件研究进展

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科学通报 2024年第1期69卷 96-111页

作者：贾士鑫张浩洋银达冯晶吉林大学电子科学与工程学院集成光电子学国家重点实验室长春130012

近年来,随着柔性和可穿戴电子设备的发展,人们对可拉伸设备的需求不断提升,促进了可拉伸电子器件的快速发展.可拉伸显示器在可拉伸电子设备中起到信息传递和人机交互的作用,是可拉伸电子设备的重要组成部分.可拉伸发光器件作为可拉伸显... 详细信息

近年来,随着柔性和可穿戴电子设备的发展,人们对可拉伸设备的需求不断提升,促进了可拉伸电子器件的快速发展.可拉伸显示器在可拉伸电子设备中起到信息传递和人机交互的作用,是可拉伸电子设备的重要组成部分.可拉伸发光器件作为可拉伸显示器的核心组成部分之一,受到广泛关注.随着材料、工艺和器件结构设计的不断发展与进步,可拉伸发光器件的研究得到快速发展,多种策略被开发出来用于实现器件的拉伸性,且器件性能显著提高.其中,基于褶皱结构的可拉伸有机电致发光器件因其优异的光电性能和机械拉伸性而在可穿戴电子设备、电子皮肤、智能服装等领域展现出较大的应用潜力,成为制备可拉伸显示器的候选器件之一.本文对基于褶皱结构可拉伸有机电致发光器件的研究进展进行综述,首先介绍了褶皱结构的形成机制及相关的理论,然后对褶皱结构型可拉伸有机电致发光器件按照拉伸维度和褶皱有序性进行分类,总结了不同类型器件的设计思路、制造方案和器件性能特点.最后,简要讨论了褶皱结构可拉伸有机电致发光器件存在的一些挑战及对未来的展望.

关键词：可拉伸电子器件可拉伸有机电致发光器件褶皱结构超薄柔性器件弹性衬底

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基于改进深度卷积对抗生成网络的肺结节良恶性分类

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计算机工程 2020年第12期46卷 262-269页

作者：李莉张浩洋乔璐东北林业大学软件工程系哈尔滨150000

为提高肺结节良恶性识别的准确率,构建改进深度卷积对抗生成网络(DCGAN)框架与半监督模糊C均值(FCM)聚类结合的SFDG肺结节良恶性识别模型。将带有良恶性等级标签的肺结节图像输入到DCGAN框架,使得只有来源分类能力的判别器网络同时具备... 详细信息

为提高肺结节良恶性识别的准确率,构建改进深度卷积对抗生成网络(DCGAN)框架与半监督模糊C均值(FCM)聚类结合的SFDG肺结节良恶性识别模型。将带有良恶性等级标签的肺结节图像输入到DCGAN框架,使得只有来源分类能力的判别器网络同时具备肺结节等级分类能力。在判别过程中运用半监督FCM聚类方法,对输入肺结节图像进行特征提取和量化,将输出的当前图像所属类别概率及判别结果与真实结果进行比较来调整网络参数。通过设定加权损失函数最大概率提高模型识别准确率,训练得出具有良好鲁棒性的网络模型。实验结果表明,改进模型的判别器网络具有良好的肺结节良恶性分类能力,准确率高达90.96%。

关键词：良恶性分类卷积神经网络特征量化深度卷积对抗生成网络半监督模糊C均值方法

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基于岛-桥结构的可拉伸发光器件研究进展

发光学报 2023年第9期44卷 1606-1620页

作者：张浩洋贾士鑫银达冯晶吉林大学电子科学与工程学院集成光电子学国家重点实验室吉林长春130012

基于岛-桥结构的可拉伸发光器件阵列是当前实现可拉伸显示器的重要方案之一,受到广泛关注。本文汇总了过去十几年中关于岛-桥结构可拉伸发光器件阵列的相关研究内容,对各个器件的性能和特点进行综述。围绕器件的拉伸性、机械稳定性和显... 详细信息

基于岛-桥结构的可拉伸发光器件阵列是当前实现可拉伸显示器的重要方案之一,受到广泛关注。本文汇总了过去十几年中关于岛-桥结构可拉伸发光器件阵列的相关研究内容,对各个器件的性能和特点进行综述。围绕器件的拉伸性、机械稳定性和显示质量等核心问题,重点介绍了发光单元之间可拉伸导线(互连桥)的形状设计与材料选择方案,并对已报道的高像素密度集成策略、阵列拉伸应变分布优化策略和阵列像素密度因拉伸度增大而降低问题的解决方案进行了总结。目前,基于岛-桥结构的可拉伸发光显示阵列研究还处于初级阶段,器件的设计、制备和实现高性能还面临许多挑战,本综述旨在通过对当前研究的总结,为推动可拉伸显示器的发展做出一些贡献。

关键词：发光器件可拉伸岛-桥结构

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