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Jianzhang Sun, Baoyu Gao, Yuanxia Luo, Moxi Xue, Xing Xu, Qinyan Yue, Yan Wang
《环境科学与工程前沿(英文)》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1029-8
关键词: Algal Extraction Enteromorpha polysaccharide 1H-13C nuclear magnetic resonance (NMR) Fourier transform infrared (FTIR) X-ray photoelectron spectroscopy (XPS) Coagulation mechanism.
Siming Chen, Yue Wu, Geoffrey W. Stevens, Guoping Hu, Wenshou Sun, Kathryn A. Mumford
《化学科学与工程前沿(英文)》 2020年 第14卷 第3期 页码 415-424 doi: 10.1007/s11705-019-1882-4
全氟化碳乳剂<sup>19sup>F磁共振成像的最新进展 Review
Anne H. Schmieder,Shelton D. Caruthers,Jochen Keupp,Samuel A. Wickline,Gregory M. Lanza
《工程(英文)》 2015年 第1卷 第4期 页码 475-489 doi: 10.15302/J-ENG-2015103
<sup>19sup>F磁共振成像(MRI) 的研究可追溯到30多年前。在这30多年间,氢原子核(<sup>1sup>H)成像技术迅速发展,并在全球得到广泛应用,使得磁共振成像成为生物医学诊断成像技术中不可缺少的支柱。多年来,由于各种原因,对<sup>19sup>F成像技术的研究进展缓慢。但是在过去的十年间,尤其是最近几年,<sup>19sup>F成像的研究和临床相关性呈爆发式发展。部分原因归结为MRI仪器、<sup>19sup>F/<sup>1sup>H线圈设计以及临床前和临床核磁共振仪的超高速脉冲序列的发展。这些成就再加上对解剖生理学分子成像技术的兴趣以及一批创新造影剂的出现使<sup>19sup>F的概念进入了早期的临床评估中。
Symbiotic performance, shoot biomass and water-use efficiency of three groundnut (
Sofiya K. MUHABA, Felix D. DAKORA
《农业科学与工程前沿(英文)》 2020年 第7卷 第4期 页码 455-466 doi: 10.15302/J-FASE-2020354
Phosphorus is a key nutrient element involved in energy transfer for cellular metabolism, respiration and photosynthesis and its supply at low levels can affect legume nodulation, N fixation, and C assimilation. A two-year field study was conducted in Ethiopia in 2012 and 2013 to evaluate the effects of P supply on growth, symbiotic N nutrition, grain yield and water-use efficiency of three groundnut genotypes. Supplying P to the genotypes significantly increased their shoot biomass, symbiotic performance, grain yield, and C accumulation. There was, however, no effect on shoot δ C values in either year. Compared to the zero-P control, supplying 40 kg·ha P markedly increased shoot biomass by 77% and 66% in 2012 and 2013, respectively. In both years, groundnut grain yields were much higher at 20 and 30 kg·ha P. Phosphorus supply markedly reduced shoot δ N values and increased the %Ndfa and amount of N-fixed, indicating the direct involvement of P in promoting N fixation in nodulated groundnut. The three genotypes differed significantly in δ N, %Ndfa, N-fixed, grain yield, C concentration, and δ C. The phosphorus × genotype interaction was also significant for shoot DM, N content, N-fixed and soil N uptake.
关键词: shoot yield N-fixed %Ndfa δ15N δ13C water-use efficiency
《化学科学与工程前沿(英文)》 2023年 第17卷 第12期 页码 1986-2000 doi: 10.1007/s11705-023-2337-5
关键词: sp3/sp2-hybridized C–N bond noble metal nanoparticle catalytic active site turnover frequency DFT
新型400 km·h<sup>−1sup> 级架空接触网监测技术
Chul Jin Cho, Young Park
《工程(英文)》 2016年 第2卷 第3期 页码 360-365 doi: 10.1016/J.ENG.2016.03.016
近年来,高速铁路各项技术不断发展,列车运行速度从300 km•h–1 提高到400 km•h<sup>−1sup>。本文介绍了由韩国研究者开发和论证的技术,即400 km•h<sup>−1sup> 级集电性能评估方法。
关键词: 高速铁路 架空接触网 状态监测 基于图像处理的测量方式
Solvability and thermal response of cellulose with different crystal configurations
Qian CHEN, Kai ZHENG, Qingtao FAN, Kun WANG, Haiyan YANG, Jianxin JIANG, Shijie LIU
《工程管理前沿(英文)》 2019年 第6卷 第1期 页码 62-69 doi: 10.1007/s42524-019-0001-z
Cellulose is a biodegradable and renewable natural material that it is naturally resistant to breaking and modification. Moreover, the crystalline structure of cellulose is a major factor restricting its industrial utilization. In this study, cellulose polymorphs were prepared from natural cellulose, and their solvability and thermal response were investigated. Using liquid- and solid-state NMR signals, the distinct types and dissolving states of cellulose polymorphs were identified. The thermal behavior of the polymorphic forms of cellulose-d was also evaluated, and cellulose II exhibited the poorest thermal stability and a unique exothermic reaction.
关键词: cellulose crystal structure thermal response XRD CP/MAS 13C NMR
动态二叉树表示环境的A<sup>*sup>算法及其在足球机器人路径规划中的实现
唐平,杨宜民
《中国工程科学》 2002年 第4卷 第9期 页码 50-53
提出采用二叉树表示二维空间的方法,对全局路径规划和局部路径规划进行综合考虑,设计移动机器人在复杂环境下对动态障碍物进行避障的A<sup>*sup>算法。
关键词: 动态二叉树 A<sup>*sup>算法 路径规划
Xueping Li, Yuting Dai, Bing Chen, Jinyan Huang, Saijuan Chen, Lu Jiang
《医学前沿(英文)》 2021年 第15卷 第4期 页码 608-620 doi: 10.1007/s11684-021-0836-7
关键词: t(8 21)(q22 q22) AML CD34+CD117dim/ CD34+CD117bri cell population gene expression prognosis
K<sup>+sup> and Na<sup>+sup> fluxes in roots of two Chinese Iris populations
Pinfang LI,Biao ZHANG
《农业科学与工程前沿(英文)》 2014年 第1卷 第2期 页码 144-149 doi: 10.15302/J-FASE-2014016
关键词: Iris lactea Pall. var. chinensis (Fisch.) Koidz population K+ and Na+ ion flux non-invasive micro-test technique
Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification
《环境科学与工程前沿(英文)》 2023年 第17卷 第6期 doi: 10.1007/s11783-023-1674-4
● Simultaneous NH4+/NO3– removal was achieved in the FeS denitrification system
Annett SCHROETER, Tanja ENGELBRECHT, Reinhard H. H. NEUBERT
《化学科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 29-36 doi: 10.1007/s11705-013-1302-0
关键词: nano-structure of the stratum corneum ceramide penetration enhancer model membrane neutron diffraction 2H NMR spectroscopy
Innate and adaptive T cells in influenza disease
null
《医学前沿(英文)》 2018年 第12卷 第1期 页码 34-47 doi: 10.1007/s11684-017-0606-8
Influenza is a major global health problem, causing infections of the respiratory tract, often leading to acute pneumonia, life-threatening complications and even deaths. Over the last seven decades, vaccination strategies have been utilized to protect people from complications of influenza, especially groups at high risk of severe disease. While current vaccination regimens elicit strain-specific antibody responses, they fail to generate cross-protection against seasonal, pandemic and avian viruses. Moreover, vaccines designed to generate influenza-specific T-cell responses are yet to be optimized. During natural infection, viral replication is initially controlled by innate immunity before adaptive immune responses (T cells and antibody-producing B cells) achieve viral clearance and host recovery. Adaptive T and B cells maintain immunological memory and provide protection against subsequent infections with related influenza viruses. Recent studies also shed light on the role of innate T-cells (MAIT cells, gd T cells, and NKT cells) in controlling influenza and linking innate and adaptive immune mechanisms, thus making them attractive targets for vaccination strategies. We summarize the current knowledge on influenza-specific innate MAIT and gd T cells as well as adaptive CD8+ and CD4+ T cells, and discuss how these responses can be harnessed by novel vaccine strategies to elicit cross-protective immunity against different influenza strains and subtypes.
关键词: influenza innate T cells CD4+ and CD8+ T cells vaccination
陈景
《中国工程科学》 2004年 第6卷 第11期 页码 29-32
对氢分子离子提出了氢原子质子化的结构模型,从微观时标和宏观时标分析了H2<sup>+sup>中库仑吸引力和两核排斥力的动态平衡,认为氢原子畸变后的电子云在两核中点产生e/
Haiping LUO,Bangyu QIN,Guangli LIU,Renduo ZHANG,Yabo TANG,Yanping HOU
《环境科学与工程前沿(英文)》 2015年 第9卷 第3期 页码 522-527 doi: 10.1007/s11783-014-0633-5
标题 作者 时间 类型 操作
Application and mechanism of polysaccharide extracted from Enteromorpha to remove nano-ZnO and humic acid in coagulation process
Jianzhang Sun, Baoyu Gao, Yuanxia Luo, Moxi Xue, Xing Xu, Qinyan Yue, Yan Wang
期刊论文
Precipitation study of CO
Siming Chen, Yue Wu, Geoffrey W. Stevens, Guoping Hu, Wenshou Sun, Kathryn A. Mumford
期刊论文
全氟化碳乳剂<sup>19sup>F磁共振成像的最新进展
Anne H. Schmieder,Shelton D. Caruthers,Jochen Keupp,Samuel A. Wickline,Gregory M. Lanza
期刊论文
Symbiotic performance, shoot biomass and water-use efficiency of three groundnut (
Sofiya K. MUHABA, Felix D. DAKORA
期刊论文
Effect of noble metal nanoparticle size on C–N bond cleavage performance in hydrodenitrogenation: a study
期刊论文
Solvability and thermal response of cellulose with different crystal configurations
Qian CHEN, Kai ZHENG, Qingtao FAN, Kun WANG, Haiyan YANG, Jianxin JIANG, Shijie LIU
期刊论文
Clinical significance of CD34<sup>+sup>CD117<sup>dimsup>/CD34<sup>+sup>CD117<sup>brisup> myeloblast-associated
Xueping Li, Yuting Dai, Bing Chen, Jinyan Huang, Saijuan Chen, Lu Jiang
期刊论文
K<sup>+sup> and Na<sup>+sup> fluxes in roots of two Chinese Iris populations
Pinfang LI,Biao ZHANG
期刊论文
Influence of short chain ceramides and lipophilic penetration enhancers on the nano-structure of stratum corneum model membranes studied using neutron diffraction
Annett SCHROETER, Tanja ENGELBRECHT, Reinhard H. H. NEUBERT
期刊论文