检索范围:
排序: 展示方式:
多天线系统的互耦抑制 Review
Jia-yin GUO, Feng LIU, Guo-dong JING, Lu-yu ZHAO, Ying-zeng YIN, Guan-long HUANG
《信息与电子工程前沿(英文)》 2020年 第21卷 第3期 页码 366-376 doi: 10.1631/FITEE.1900490
基于双圈均匀圆阵的综合误差校正方法 Research Article
Jia-jia Zhang, Hui Chen, Song Xiao, Meng-yu Ni,zjj2015wuhan@163.com
《信息与电子工程前沿(英文)》 2019年 第20卷 第10期 页码 1415-1428 doi: 10.1631/FITEE.1800240
涂承媛,曾衍钧
《中国工程科学》 2001年 第3卷 第10期 页码 48-52
文章提出了一种基于知识的变结构解耦控制策略,并用于多变量非线性系统的控制,避免了传统解耦控制所必须的建模过程,特别是避免了相应的大量复杂的矩阵运算。
关键词: 多变量非线性系统 解耦控制 基于知识的变结构解耦
5G应用下的MIMO阵列天线去耦方法综述 Review Articles
Xiao-xi ZHANG, Ai-di REN, Ying LIU
《信息与电子工程前沿(英文)》 2020年 第21卷 第1期 页码 62-71 doi: 10.1631/FITEE.1900466
关键词: MIMO阵列;5G手机;去耦方法
费德成,朱熀秋
《中国工程科学》 2005年 第7卷 第11期 页码 48-54
应用多变量非线性控制逆系统理论,对无轴承永磁同步电机的多变量、非线性、强耦合的控制对象进行了动态解耦控制研究;介绍了逆系统理论,阐述了无轴承永磁同步电机径向力的产生机理,建立了转矩力和径向悬浮力状态方程,分析了基于逆系统理论解耦控制的可行性,推导出基于逆系统理论的无轴承永磁同步电机转矩力与径向力之间的动态解耦控制算法。仿真结果表明,这种控制策略能够实现转矩力与径向力之间的动态解耦,并且系统具有良好的动、静态性能。
文亮,瓮晶波,何继善
《中国工程科学》 2007年 第9卷 第8期 页码 15-20
英国模式和美国模式是国际上两种典型的注册工程师制度模式,世界上一些经济发达国家已经建立了以注册工程师制度为基础的工程师资格互认协议,这些国际工程师协议以受教育程度我国工程师专业分类应在与国际工程师互认的基础性原则相一致的前提下,充分考虑我国现有工程师专业分类情况,尽可能与国际工程师专业分类融合,根据其是否直接涉及社会公众利益和公民生命财产安全,我国新的工程师专业可分为注册和非注册两大类
基于荧光原位杂交技术的UASB颗粒污泥中苯酚降解微生物生态位分化研究 Article
Kengo Kubota, Kei Igarashi, Masayoshi Yamada, Yasuyuki Takemura, Yu-You Li, Hideki Harada
《工程(英文)》 2022年 第9卷 第2期 页码 61-66 doi: 10.1016/j.eng.2021.05.012
关键词: 隐杆厌氧菌(Cryptanaerobacter) 荧光原位杂交 苯酚厌氧降解 互营杆菌(Syntrophorhabdaceae) 互养菌(Syntrophus)
周立伟,刘广荣,高稚允,王仲春
《中国工程科学》 1999年 第1卷 第3期 页码 56-62
文章综述微光成像的电子轰击电荷耦合器件(EBCCD)的进展。EBCCD是将像管的荧光屏以对电子灵敏的背照明、减薄CCD代替,将电子图像直接转变为视频信号,其在所有光照等级下,特别是在极低微光下的调制传递函数(MTF)、分辨力、信噪比、余辉等均优于像增强器耦合CCD(ICCD)。文中较为详细地叙述了倒像式EBCCD设计与减薄工艺,给出各种类型倒像式EBCCD像管的技术参数,分析和比较了近贴式与倒像式EBCCD与ICCD的性能,指出了EBCCD在军用夜视技术与民用技术未来发展中的地位与重要性。
代谢组扩展生物学的“旁中心法则”——对理解基因组学-糖组学-代谢组学-表观基因组学互作的意义
Albert Stuart Reece
《工程(英文)》 2023年 第26卷 第7期 页码 16-16 doi: 10.1016/j.eng.2022.07.011
The central dogma of biology holds that the transcription of DNA into RNA and the translation of RNA into proteins forms the primary axis of biological activity [1]. Following major advances in the description of the complex glycan and lipid chains that are added onto these basic building blocks, the glycome and lipidome have recently been added to this doctrine as an exciting new extension named the ‘‘paracentral dogma” [2]. However, it has been pointed out that biological systems can include many layers, which are described in modern omics technology platforms relating to both cell-intrinsic and cell-extrinsic layers of control, including metabolomic, microbiomic, immunological, epigenomic, epitranscriptomic, proteomic and phosphoproteomic layers [3].
It is well known that stem and progenitor cells have a metabolism that is based on glycolysis and glutaminolysis [4]. Although this provides less energy to the cell than oxidative phosphorylation, it suffices for these cells’ needs, since such cells are generally relatively quiescent and normally suppress energy-intensive processes such as genome duplication and transcription. Moreover, it has been shown that the high intracellular lactate levels involved in such states not only inhibits the key gatekeeper enzymes of oxidative phosphorylation (i.e., pyruvate dehydrogenase and carnitine palmitoyl acyltransferase) but also actually covalently modifies them by lactylation in order to maintain this inhibited metabolic–epigenomic state [5]. In addition, intermediate metabolism and nutrients are the source of the very extensive library of post-translational modifications to DNA, RNA, and proteins, as well as supplying cellular energy for many of the required reactions. Hence, the metabolic state locks in and reinforces the epigenomic state, and the metabolome and epigenome thereby play mutually reinforcing roles. This self-reinforcing coordination explains why it is so difficult to generate induced pluripotent cells and is a contributory explanation for why the described protocols typically have such low cellular yields.
These concepts become even more important when it is considered that cancer cells are de-differentiated, similarly rely on glycolysis and glutaminolysis, and are similarly metabolically–epigenomically–genomically synchronized. The disruption of this metabolic system is a key focus of mechanistic cancer research.
These important considerations imply that the descriptive and predictive power of the newly described ‘‘paracentral dogma” of biology may be usefully and meaningfully extended by including the metabolome, along with the genome, transcriptome, proteome, glycome, and lipidome, to describe cell-intrinsic regulation—not only in terms of another omics analytical layer but also as a fully predictive and interactive partner in the symphonic-like multilayer coordination that evidently comprises cellular regulatory layering.
应用于5G/WLAN频段的MIMO手持天线 Correspondences
Yong CHENG, Jing LU, Bing-qing SHENG
《信息与电子工程前沿(英文)》 2020年 第21卷 第1期 页码 182-187 doi: 10.1631/FITEE.1900478
基于子阵sin-FDA的点状波束形成研究 Research Article
Bo Wang, Jun-wei Xie, Jing Zhang, Jia-ang Ge,wb_wangbo1991@163.com
《信息与电子工程前沿(英文)》 2019年 第20卷 第10期 页码 1429-1444 doi: 10.1631/FITEE.1800722
Joint user association and resource partition for downlink-uplink decoupling in multi-tier HetNets Article
Zhi-yong FENG, Ze-bing FENG, T. Aaron GULLIVER
《信息与电子工程前沿(英文)》 2017年 第18卷 第6期 页码 817-829 doi: 10.1631/FITEE.1700031
朱熀秋,巫亮,周阳,张腾超,邓建明
《中国工程科学》 2006年 第8卷 第6期 页码 35-40
标题 作者 时间 类型 操作
基于荧光原位杂交技术的UASB颗粒污泥中苯酚降解微生物生态位分化研究
Kengo Kubota, Kei Igarashi, Masayoshi Yamada, Yasuyuki Takemura, Yu-You Li, Hideki Harada
期刊论文
Joint user association and resource partition for downlink-uplink decoupling in multi-tier HetNets
Zhi-yong FENG, Ze-bing FENG, T. Aaron GULLIVER
期刊论文