资源类型

期刊论文 5

年份

2023 1

2013 1

2007 2

2005 1

关键词

TMS320DM642 2

DFS 1

FPGA 1

OSD 1

SAA7121 1

TVP5150 1

疲劳检测 1

视频口 1

输入无反射滤波器;平衡式带通滤波器;差模;共模;三线耦合结构 1

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基于TMS320DM642多媒体处理器的实时视频处理系统设计

赵振,张卫宁,田红磊

《中国工程科学》 2007年 第9卷 第3期   页码 87-91

摘要:

介绍了基于TMS320DM642的实时视频处理系统的设计,研究分析了系统的视频解码器TVP5150、编码器SAA7121和DM642视频口的功能及工作方式

关键词: TMS320DM642     TVP5150     SAA7121     视频口    

基于TMS320DM642的疲劳检测系统硬件设计

耿磊,吴晓娟,彭彰

《中国工程科学》 2005年 第7卷 第11期   页码 87-90

摘要: 针对疲劳检测算法中大数据量、高速传输、复杂运算的实际需要,设计了以SAA7115 为视频采集AD,DSP器件TMS320DM642为核心处理器,SAA7105为视频输出DA,利用FPGA控制输出,以实现增强显示功能的实时视频处理系统

关键词: TMS320DM642     疲劳检测     DFS     FPGA     OSD    

From gut changes to type 2 diabetes remission after gastric bypass surgeries

null

《医学前沿(英文)》 2013年 第7卷 第2期   页码 191-200 doi: 10.1007/s11684-013-0258-2

摘要:

Increasing evidence suggests that the gut may influence the host’s metabolism and ultimately change the outcomes of type 2 diabetes mellitus (T2DM). We review the evidence on the relationship between the gut and T2DM remission after gastric bypass surgery, and discuss the potential mechanisms underlying the above relationship: gut anatomical rearrangement, microbial composition changes, altered gut cells, and gut hormone modulation. However, the exact changes and their relative importance in the metabolic improvements after gastric bypass surgery remain to be further clarified. Elucidating the precise metabolic mechanisms of T2DM resolution after bypass surgery will help to reveal the molecular mechanisms of pathogenesis, and facilitate the development of novel diagnoses and preventative interventions for this common disease.

关键词: gastric bypass     T2DM     gut    

Modeling of the separation performance of nanofiltration membranes and its role in the applications of nanofiltration technology in product separation processes

SHANG Weijuan, WANG Daxin, WANG Xiaolin

《化学科学与工程前沿(英文)》 2007年 第1卷 第2期   页码 208-215 doi: 10.1007/s11705-007-0038-0

摘要: Although there is a voluminous literature on the determination of structural parameters (the pore radius, the ratio of membrane porosity to membrane thickness) of a nanofiltration (NF) membrane and its separation performance (such as the rejection and the permeation flux) by the simplified Teorell-Meyer-Sievers (TMS) model, little of this research comments on other theories and the consequences of linking modeling evaluation to technological application. Theories used to predict the separation performance of an NF membrane usually include: the non-equilibrium thermodynamic model, the pore model, the space charge model, the TMS model, the electrostatic and steric-hindrance model, and the semiempirical model. In the article, we briefly trace the origins or the general ideas of the above-mentioned theories. From there, recent researches on the characterization of membrane structural parameters and electrical properties (such as the surface charge density ) are reviewed. We then turn to research on the separation performance of an NF membrane for single-component solutions of inorganic electrolytes, neutral organic solutions, and a mixture solution of electrolytes or that of an electrolyte and neutral organic solute. Afterwards, we outline the applications of NF technology in the processes of product separation and conclude with a discussion on the role of models in such applications.

关键词: above-mentioned     TMS     characterization     electrostatic     semiempirical    

基于三线耦合结构的具有灵活带宽的紧凑型平衡式输入无反射带通滤波器 Research Article

朱雅慧1,2,蔡璟1,2,秦伟1,2,杨汶汶1,2,陈建新1,2

《信息与电子工程前沿(英文)》 2023年 第24卷 第2期   页码 314-326 doi: 10.1631/FITEE.2200261

摘要: 本文提出一种基于三线耦合结构的具有灵活带宽的紧凑型平衡式输入无反射带通滤波器。在差模模式下,带通响应由三线耦合结构实现,同时三线耦合结构的输入耦合馈线被输入吸收网络复用。带通滤波部分和吸收部分实现了良好的融合,有效地减小了电路尺寸,并且两部分的带宽独立可控,进而使得该滤波器的差模响应带宽具有灵活可控的特性。此外,首次对两部分的带宽比进行详细分析,以获得通带平坦度与无反射性能的良好折衷。因此,该协同设计的输入无反射差模带通响应具有易于优化的特点。同时,输入端的吸收网络还实现了宽频带内的共模噪声吸收。为了验证该设计方法,设计了一款尺寸为0.52λ×0.36λ的平衡式输入无反射滤波器,测量范围为0–7.0 GHz。测得差模响应的中心频率为2.45 GHz,3 dB相对带宽为31.4%。实测和仿真结果展现了良好的一致性,并且该滤波器具有0.43 dB的低插入损耗、较宽的差模上阻带(超过20 dB的抑制水平至2.72倍频)以及宽带的差模无反射和共模噪声吸收(吸收相对带宽为285.7%)等优点。

关键词: 输入无反射滤波器;平衡式带通滤波器;差模;共模;三线耦合结构    

标题 作者 时间 类型 操作

基于TMS320DM642多媒体处理器的实时视频处理系统设计

赵振,张卫宁,田红磊

期刊论文

基于TMS320DM642的疲劳检测系统硬件设计

耿磊,吴晓娟,彭彰

期刊论文

From gut changes to type 2 diabetes remission after gastric bypass surgeries

null

期刊论文

Modeling of the separation performance of nanofiltration membranes and its role in the applications of nanofiltration technology in product separation processes

SHANG Weijuan, WANG Daxin, WANG Xiaolin

期刊论文

基于三线耦合结构的具有灵活带宽的紧凑型平衡式输入无反射带通滤波器

朱雅慧1,2,蔡璟1,2,秦伟1,2,杨汶汶1,2,陈建新1,2

期刊论文