检索结果-南通市图书馆

纤维素热裂解过程中活性纤维素的生成和演变机理

在线全文

学校读者我要写书评

暂无评论

物理化学学报 2008年第11期24卷 1957-1963页

作者：刘倩王树荣王凯歌郭秀娟骆仲泱岑可法浙江大学能源清洁利用国家重点实验室杭州310027

在辐射加热闪速热裂解实验台上获取了一种可溶性的黄色固体中间产物,在两个不同辐射热流下其产量随着反应的进行均呈现升高-稳定-再升高的变化趋势.高效液相色谱分析发现,其主要成分包括低聚糖、葡萄糖、左旋葡聚糖、丙酮醛等.将其中的... 详细信息

在辐射加热闪速热裂解实验台上获取了一种可溶性的黄色固体中间产物,在两个不同辐射热流下其产量随着反应的进行均呈现升高-稳定-再升高的变化趋势.高效液相色谱分析发现,其主要成分包括低聚糖、葡萄糖、左旋葡聚糖、丙酮醛等.将其中的纤维二糖、纤维三糖等低聚糖,以及葡萄糖等单糖的混合物归为活性纤维素.在高热流下,活性纤维素的相对产量呈现先升后降的趋势,在可溶性产物中的含量可高达68%(w,质量分数),且聚合度较高的低聚糖占主导地位.在低热流下活性纤维素产量相对较低,最高达到约57%(w),更多地由聚合度较低的糖类组成.在高温下活性纤维素极不稳定,易降解生成聚合度更低的糖类,甚至焦炭、挥发份和气体产物.最后提出了一个改进的机理模型,描述了活性纤维素的生成和演变的反应路径.

关键词：纤维素热裂解活性纤维素低聚糖单糖

在线全文

学校读者我要写书评

暂无评论

抽提物对生物质热裂解机理的影响研究

燃料化学学报 2010年第1期38卷 42-46页

作者：郭秀娟王树荣王凯歌刘倩骆仲泱浙江大学能源清洁利用国家重点实验室浙江杭州310027

利用惰性溶剂从生物质中提取得到相应抽提物,在热重红外联用仪上研究了抽提物的热裂解行为,并探讨了其对生物质热裂解的影响。结果表明,因不同种类生物质中木质素结构单元中紫丁香基和愈创木基数量不同,从而导致抽提物成分存在差异,相... 详细信息

利用惰性溶剂从生物质中提取得到相应抽提物,在热重红外联用仪上研究了抽提物的热裂解行为,并探讨了其对生物质热裂解的影响。结果表明,因不同种类生物质中木质素结构单元中紫丁香基和愈创木基数量不同,从而导致抽提物成分存在差异,相应的热裂解产物分布也不一致。水曲柳抽提物因含有较多的酚类物质而在热解高温段生成了甲醇和甲烷。相比于原样,抽提残渣反应活化能增加,且主要产物析出时间提前,同时酸类物质和直链烷烃析出量减少,而水、CO2、CO和醛类物质的产量则有所增加。

关键词：生物质抽提物热裂解热重红外联用

初治急性早幼粒细胞白血病缓解后三氧化二砷和常规化疗巩固治疗疗效分析

在线全文

学校读者我要写书评

暂无评论

中山大学学报（医学科学版） 2011年第4期32卷 485-490页

作者：王荷花许多荣张婧李娟童秀珍彭爱华张国材罗绍凯中山大学附属第一医院血液科广东广州510080 中山大学附属第三医院血液科广东广州510630

【目的】探讨初治急性早幼粒细胞白血病(APL)缓解后三氧化二砷(ATO)和常规化疗交替巩固治疗的长期疗效和安全性。【方法】自2003年5月至2009年12月,初治APL患者完全缓解(CR)后采用ATO和常规化疗交替巩固治疗方案:ATO10mg/d每周5d×4周... 详细信息

【目的】探讨初治急性早幼粒细胞白血病(APL)缓解后三氧化二砷(ATO)和常规化疗交替巩固治疗的长期疗效和安全性。【方法】自2003年5月至2009年12月,初治APL患者完全缓解(CR)后采用ATO和常规化疗交替巩固治疗方案:ATO10mg/d每周5d×4周或连续20d为1疗程,化疗为常规剂量蒽环类药物-阿糖胞苷"3+7"方案。【结果】54例初治APL患者CR后采用ATO和常规化疗交替巩固治疗方案,男29例,女25例,中位年龄31岁,ATO和化疗巩固中位疗程数各4(2～8)个,ATO总剂量中位数15.1(5.9～34.8)mg/kg。ATO巩固治疗结束阶段常出现3/4级中性粒细胞减少,但不增加细菌感染率,其它毒副作用轻微、可逆。巩固治疗期间无治疗相关死亡,所有患者在巩固治疗期间获分子生物学完全缓解。中位随访39(12～91)个月,复发2例,其CR期分别为25和46个月;3年、5年无白血病生存率(LFS)和累积复发风险分别为(97.7±2.3)%、(93.4±4.7)%和(2.4±2.3)%、(6.8±4.7)%,其中CR>5年17例(占31%)、>3年29例(占54%),无ATO慢性蓄积中毒和继发第二恶性肿瘤的发生。COX回归模型单因素分析表明患者年龄、性别、病初WBC、Hb、PLT、LDH值、外周血和骨髓异常早幼粒细胞比例以及诱导治疗方案中维甲酸是否联合ATO与LFS均无显著相关(P>0.05)。【结论】初治APL缓解后采用ATO联合常规化疗安全有效,可获得更高的长期无病生存率。

关键词：急性早幼粒细胞白血病三氧化二砷化疗缓解后治疗

Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2013年第12期126卷 2276-2280页

作者： ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan wang Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying wang Li SHI Wei LIU Jian-she HE Ya-ni DING guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai luo Hui-min LIN Shan CHEN Meng-hua GONG Li yang Yi-bin yang Xiao-ping LI Ying WAN Jian-xin wang Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI rong-shan wang rong ZHANG Jing-hong wang Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian zhong Liang-bao Department of Nephrology State key Laboratory of Kidney Disease Chinese PLA General Hospital Beijing 100853 China Nephrology Institute of the Chinese People's Liberation Army Chinese People's Liberation Army Key Laboratory of Nephrology Beijing 100853 China Department of Nephrology West China Hospital of Sichuan University Chengdu Sichuan 610041 China Department of Nephrology First Affiliated Hospital School of Medicine Zhejiang University Hangzhou Zhejiang 310003 China Department of Nephrology Zhongshan Hospital Fudan University Shanghai 200032 China Department of Nephrology First Affiiated Hospital of Sun Yat-sen University Guangzhou Guangdong 510080 China Department of Nephrology First Affiliated Hospital of Dalian Medical University Dalian Liaoning 116011 China Department of Nephrology First Affiliated Hospital of Xinjiang Medical University Urumqi Xinjiang 830054 China Department of Nephrology First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang 150001 China Department of Nephrology First Afftiated Hospital of China Medical University Shenyang Liaoning 110001 China Department of Nephrology Renji Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200025 China Department of Nephrology Second Xiangya Hospital Central South University Changsha Hunan 410000 China Department of Nephrology First Affiliated Hospital of Medical College Xi'an Jiaotong University Xi'an Shaanxi 710061 China Department of Nephrology First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital) Nanjing Jiangsu 210029 China Department of Nephrology Sichuan Provincial People's Hospital Chengdu Sichuan 610072 China Department of Nephrology Guangdong Provincial People's Hospital Guangzhou Guangdong 510030 China Department of Nephrology Affliated Xiehe Hospital Tongji Medical College Huazhong Science and Technology University Wuhan Hubei 430022 China Department of Nephrology Daping Hospital Third Military Medi

Background Data on the epidemiology of hypertension in Chinese non-dialysis chronic kidney disease （CKD） patients are *** aim of the present study was to investigate the prevalence,awareness,treatment,and control of hypertension in the non-dialysis CKD patients through a nationwide,multicenter study in *** The survey was performed in 61 tertiary hospitals in 31 provinces,municipalities,and autonomous regions in China （except Hong Kong,Macao,and Taiwan）.Trained physicians collected demographic and clinical data and measured blood pressure （BP） using a standardized *** was defned as systolic BP ≥140 mmHg and/or diastolic BP ≥90 mmHg,and/or use of antihypertensive *** 〈140/90 mmHg and 〈130/80 mmHg were used as the 2 thresholds of hypertension *** multivariate logistic regression with adjustment for sex and age,we analyzed the association between CKD stages and uncontrolled hypertension in non-dialysis CKD *** The analysis included 8927 non-dialysis CKD *** prevalence,awareness,and treatment of hypertension in non-dialysis CKD patients were 67.3%,85.8%,and 81.0%,*** hypertensive CKD patients,33.1% and 14.1% had controlled BP to 〈140/90 mmHg and 〈130/80 mmHg,*** successive CKD stages,the prevalence of hypertension in non-dialysis CKD patients increased,but the control of hypertension decreased （P〈0.001）.When the threshold of BP 〈130/80 mmHg was considered,the risk of uncontrolled hypertension in CKD 2,3a,3b,4,and 5 stages increased 1.3,1.4,1.4,2.5,and 4.0 times compared with CKD 1 stage,respectively （P〈0.05）.Using the threshold of 〈140/90 mmHg,the risk of uncontrolled hypertension increased in advanced stages （P〈0.05）.Conclusions The prevalence of hypertension Chinese non-dialysis CKD patients was high,and the hypertension control was *** successive CKD stages,the risk of uncontrolled hypertension increased.

关键词： non-dialysis chronic kidney disease chronic kidney disease stages hypertension epidemiology

The DIRECT consortium and the REST-meta-MDD project:towards neuroimaging biomarkers of major depressive disorder

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

Psychoradiology 2022年第1期2卷 32-42页

作者： Xiao Chen Bin Lu Hui-Xian Li Xue-Ying Li Yu-Wei wang Francisco Xavier Castellanos Li-Ping Cao Ning-Xuan Chen Wei Chen Yu-Qi Cheng Shi-Xian Cui Zhao-Yu Deng Yi-Ru Fang Qi-Yong Gong Wen-Bin guo Zheng-Jia-Yi Hu Li Kuang Bao-juan Li Le Li Tao Li Tao Lian Yi-Fan Liao Yan-Song Liu Zhe-Ning Liu Jian-Ping Lu Qing-Hua luo Hua-Qing Meng Dai-Hui Peng Jiang Qiu Yue-Di Shen Tian-Mei Si Yan-Qing Tang Chuan-Yue wang Fei wang Hua-Ning wang kai wang Xiang wang Ying wang Zi-Han wang Xiao-Ping Wu Chun-Ming Xie Guang-rong Xie Peng Xie xiu-Feng Xu Hong yang Jian yang shu-Qiao Yao Yong-Qiang Yu Yong-Gui Yuan Ke-Rang Zhang Wei Zhang Zhi-Jun Zhang Jun-juan Zhu Xi-Nian Zuo Jing-Ping Zhao Yu-Feng Zang the DIRECT consortium Chao-Gan Yan CAS Key Laboratory of Behavioral Science Institute of PsychologyChinese Academy of SciencesBeijing 100101China International Big-Data Center for Depression Research Chinese Academy of SciencesBeijing 100101China Magnetic Resonance Imaging Research Center Institute of PsychologyChinese Academy of SciencesBeijing 100101China Department of Psychology University of Chinese Academy of SciencesBeijing 100049China Sino-Danish College University of Chinese Academy of SciencesBeijing 101408China Sino-Danish Center for Education and Research Graduate University of Chinese Academy of SciencesBeijing 101408China Department of Child and Adolescent Psychiatry NYU Grossman School of MedicineNew YorkNY 10016USA Nathan Kline Institute for Psychiatric Research OrangeburgNew YorkNY 10962USA 9Affiliated Brain Hospital of Guangzhou Medical UniversityGuangzhou 510370China Capital Normal University Beijing 100089China Department of Psychiatry Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310020ZhejiangChina Department of Psychiatry First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650032China Shanghai Mental Health Center Shanghai Jiao Tong University School of MedicineShanghai 200030China Huaxi MR Research Center(HMRRC) Department of RadiologyWest China Hospital of Sichuan UniversityChengduSichuan 610044China Research Unit of Psychoradiology Chinese Academy of Medical SciencesChengduSichuan 610052China Department of Psychiatry and National Clinical Research Center for Mental DisordersThe Second Xiangya Hospital of Central South UniversityChangsha 410011HunanChina Department of Psychiatry The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400042China Xijing Hospital of Air Force Military Medical University Xi’anShaanxi 710032China Center for Cognitive Science of Language Beijing Language and Culture UniversityBeijing 100083China Affiliated Mental Health Center&Hangzhou Seventh People’s Hospital Zhejiang University School of

Despite a growing neuroimaging literature on the pathophysiology of major depressive disorder(MDD),repro-ducible findings are lacking,probably reflecting mostly small sample sizes and heterogeneity in analytic *** address these issues,the Depression Imaging REsearch ConsorTium(DIRECT)was *** REST-meta-MDD project,pooling 2428 functional brain images processed with a standardized pipeline across all participating sites,has been the first effort from *** this review,we present an overview of the moti-vations,rationale,and principal findings of the studies so far from the REST-meta-MDD *** from the first round of analyses of the pooled repository have included alterations in functional connectivity within the default mode network,in whole-brain topological properties,in dynamic features,and in functional *** well-powered exploratory observations have also provided the basis for future longitudinal hypothesis-driven *** these fruitful explorations,DIRECT has proceeded to its second stage of data sharing that seeks to examine ethnicity in brain alterations in MDD by extending the exclusive Chinese original sample to other ethnic groups through international collaborations.A state-of-the-art,surface-based preprocessing pipeline has also been introduced to improve *** images from patients with bipolar disorder and schizophrenia will be included to identify shared and unique abnormalities across diag-nosis *** addition,large-scale longitudinal studies targeting brain network alterations following antidepressant treatment,aggregation of diffusion tensor images,and the development of functional magnetic resonance imaging-guided neuromodulation approaches are *** these endeavours,we hope to accelerate the translation of functional neuroimaging findings to clinical use,such as evaluating longitudinal effects of antidepressant medications and developing individualized

关键词： major depressive disorder DIRECT R-fMRI database neuroimaging

CEPC Technical Design Report

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

Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH University of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui University HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu University Institute of ScienceVaranasi Bandirma Onyedi Eylul University Bandirma Beihang University Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal University Beijing Brown University ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad University Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo University Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China Normal University WuhanHubei Central South University ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu kaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China Jiliang University HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China University of geosciences Beijing China University of geosciences WuhanHubei China University of Mining and Technology XuzhouJiangsu China West Normal University NanchongSichuan Chongqing University Department of PhysicsChongqing Chulalongkorn University Bangkok City University of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell University IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu University DalianLiaoning Dalian University of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East China University Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 geV Linac,a 1.1 geV Damping Ring,a Booster capable of achieving energies up to 180 geV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise