检索结果-南通市图书馆

Chinese Journal of Chemical Engineering 2021年第10期34卷 106-113页

作者： Xiao Fan Shoujie Ren baitang jin Shiguang Li Miao Yu Xinhua Liang Department of Chemical and Biochemical Engineering Missouri University of Science and TechnologyRollaMO 65409United States Gas Technology Institute 1700 South Mount Prospect RoadDes PlainesIL 60018United States Department of Chemical and Biological Engineering Rensselaer Polytechnic InstituteTroyNY 12180United States

A series of iron(Fe)modified CuO-ZnO-ZrO_(2)-Al_(2)O_(3)(CZZA)catalysts,with various Fe loadings,were prepared using a co-precipitation method.A bifunctional catalyst,consisting of Fe-modified CZZA and HZSM-5,was studied for dimethyl ether(DME)synthesis via CO_(2)*** effects of Fe loading,reaction temperature,reaction pressure,space velocity,and concentrations of precursor for the synthesis of the Fe-modified CZZA catalyst on the catalytic activity of DME synthesis were ***-term stability tests showed that Fe modification of the CZZA catalyst improved the catalyst stability for DME synthesis via CO_(2)*** activity loss,in terms of DME yield,was significantly reduced from 4.2%to 1.4%in a 100 h run of reaction,when the Fe loading amount was 0.5(molar ratio of Fe to Cu).An analysis of hydrogen temperature programmed reduction revealed that the introduction of Fe improved the reducibility of the catalysts,due to assisted adsorption of H2 on iron *** good stability of Femodified CZZA catalysts in the DME formation was most likely attributed to oxygen spillover that was introduced by the addition of iron *** could have inhibited the oxidation of the Cu surface and enhanced the thermal stability of copper during long-term reactions.

关键词： CO_(2)hydrogenation Cu-ZnO based catalyst Iron(Fe) Dimethyl ether(DME) Stability

HZSM-5 zeolites undergoing the high-temperature process for boosting the bimolecular reaction in n-heptane catalytic cracking

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2024年第2期66卷 136-144页

作者： Chenggong Song Zhenzhou Ma Xu Hou Hao Zhou Huimin Qiao Changchang Tian Li Yin baitang jin Enxian Yuan School of Chemical Engineering Changchun University of TechnologyChangchun130012China Department of Chemical and Biomolecular Engineering North Carolina State UniversityRaleighNC 27606USA School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou225009China

High-temperature treatment is key to the preparation of zeolite ***,the effects of hightemperature treatment on the property and performance of HZSM-5 zeolites were studied in this work.X-Ray diffraction,N2physisorption,27Al magic angle spinning nuclear magnetic resonance(MAS NMR),and temperature-programmed desorption of ammonia results indicated that the hightemperature treatment at 650℃ hardly affected the inherent crystal and texture of HZSM-5zeolites but facilitated the conversion of framework Al to extra-framework Al,reducing the acid site and enhancing the acid ***,the high-temperature treatment improved the performance of HZSM-5 zeolites in n-heptane catalytic cracking,promoting the conversion and light olefins yield while inhibiting coke *** on the kinetic and mechanism analysis,the improvement of HZSM-5 performance caused by high-temperature treatment has been attributed to the formation of extra-framework Al,which enhanced the acid strength,facilitated the bimolecular reaction,and promoted the entropy change to overcome a higher energy barrier in n-heptane catalytic cracking.

关键词： HZSM-5 n-Heptane Catalytic cracking High-temperature treatment Extra-framework Al

HZSM-5 zeolites undergoing the high-temperature process for boosting the bimolecular reaction in n -heptane catalytic cracking

在线全文

学校读者我要写书评

暂无评论

Sequencing XMET genes to promote genotype-guided risk assessment and precision medicine

中国化学工程学报（英文版） 2024年第2期 136页

作者： Chenggong Song Zhenzhou Ma Xu Hou Hao Zhou Huimin Qiao Changchang Tian Li Yin baitang jin Enxian Yuan

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2019年第7期62卷 895-904页

作者： Yaqiong jin Geng Chen Wenming Xiao Huixiao Hong Joshua Xu Yongli Guo Wenzhong Xiao Tieliu Shi Leming Shi Weida Tong baitang Ning Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck SurgeryBeijing Pediatric Research InstituteBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijing 100045China Center for Bioinformatics and Computational Biology and the Institute of Biomedical SciencesShanghai Key Laboratory of Regulatory Biologythe Institute of Biomedical Sciences and School of Life SciencesEast China Normal UniversityShanghai 200241China National Center for Toxicological Research U.S. Food and Drug AdministrationJefferson AR 72079USA Department of Surgery Massachusetts General HospitalHarvard Medical SchoolBoston MA 02114USA State Key Laboratory of Genetic Engineering School of Life Sciences and Cancer CenterCollaborative Innovation Center for Genetics and DevelopmentFudan UniversityShanghai 200433China

High-throughput next generation sequencing (NGS) is a shotgun approach applied in a parallel fashion by which the genome is fragmented and sequenced through small pieces and then analyzed either by aligning to a known reference genome or by de novo assembly without reference *** technology has led researchers to conduct an explosion of sequencing related projects in multidisciplinary fields of ***,due to the limitations of sequencing-based chemistry,length of sequencing reads and the complexity of genes,it is difficult to determine the sequences of some portions of the human genome,leaving gaps in genomic data that frustrate further ***,some complex genes are difficult to be accurately sequenced or mapped because they contain high GC-content and/or low complexity regions,and complicated pseudogenes,such as the genes encoding xenobiotic metabolizing enzymes and transporters (XMETs).The genetic variants in XMET genes are critical to predicate interindividual variability in drug efficacy,drug safety and susceptibility to environmental *** summarized and discussed challenges,wet-lab methods,and bioinformatics algorithms in sequencing "complex" XMET genes,which may provide insightful information in the application of NGS technology for implementation in toxicogenomics and pharmacogenomics.

关键词： next generation sequencing precision medicine xenobiotic metabolizing enzymes and transporters toxicogenomics pharmacogenomics

Application of genome analysis strategies in the clinical testing for pediatric diseases

在线全文

学校读者我要写书评

暂无评论

Pediatric Investigation 2018年第2期2卷 72-81页

作者： Yaqiong jin Li Zhang baitang Ning Huixiao Hong Wenming Xiao Weida Tong Yiran Tao Xin Ni Tieliu Shi Yongli Guo Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery MOE Key Laboratory of Major Diseases in Children Beijing Pediatric Research Institute Beijing Children's Hospital Capital Medical University National Center for Children's Health Beijing China Center for Bioinformatics and Computational Biology and the Institute of Biomedical Sciences Shanghai Key Laboratory of Regulatory Biology the Institute of Biomedical Sciences and School of Life Sciences East China Normal University Shanghai China National Center for Toxicological Research U.S.Food and Drug Administration Jefferson AR USA

Next-generation sequencing (NGS) is being used in clinical *** authorities in both China and the United States are overseeing the clinical application of NGS instruments and *** addition,the US Association for Molecular Pathology and the College of American Pathologists have jointly released a guidance to standardize the analysis and interpretation of NGS data involved in clinical *** present,the analysis strategies and pipelines for NGS data related to the clinical detection of pediatric disease are similar to those used for adult ***,for rare pediatric diseases without linkage to known genetic variants,it is currently difficult to detect the relevant pathogenic genes using NGS ***,it is challenging to identify novel pathogenic genes of familial pediatric ***,characterization of the pathogenic genes associated with above diseases is important for the diagnosis and treatment of rare diseases in *** article introduces the general pipelines for NGS data analyses of diseases and elucidates data analysis strategies for the pathogenic genes of rare pediatric diseases and familial pediatric tumors.

关键词： Familial pediatric tumors Next-generation sequencing Rare pediatric diseases

同方期刊数据库

在线全文

学校读者我要写书评

暂无评论

濮阳婚俗探析

重庆文理学院学报（社会科学版） 2008年第6期27卷 10-13页

作者：程相晋彭峥湘潭大学文学与新闻学院湖南湘潭411105

婚礼是男女双方确立婚姻关系时所举行的被社会承认的仪式。由于地域的不同,婚礼仪式也有所差异。位居河南东北部的濮阳一带的婚礼独具特色,一般要经过婚前准备、迎娶、哭嫁、返程、请新娘、拜堂、入洞房、坐帐、闹洞房、吃席、送汤、回... 详细信息

婚礼是男女双方确立婚姻关系时所举行的被社会承认的仪式。由于地域的不同,婚礼仪式也有所差异。位居河南东北部的濮阳一带的婚礼独具特色,一般要经过婚前准备、迎娶、哭嫁、返程、请新娘、拜堂、入洞房、坐帐、闹洞房、吃席、送汤、回门等一系列过程,从濮阳婚姻习俗中,我们便可领略到中原一带独特的婚俗文化。

关键词：濮阳婚礼新娘新郎喜庆