搜索结果: 1-15 共查到“知识库 Blast”相关记录66条 . 查询时间(0.109 秒)
Overexpression of OsGF14f Enhances Quantitative Leaf Blast and Bacterial Blight Resistance in Rice
GF14f leaf blast resistance bacterial blight resistance SA pathway
2023/4/21
Although it is known that rice 14-3-3 family genes are involved in various defense responses, the functions of OsGF14f in response to diseases have not been reported. Here, we showed that the transcri...
OsWRKY67 positively regulates blast and bacteria blight resistance by direct activation of PR genes in rice
OsWRKY67 Leaf blast Panicle blast Bacterial blight Salicylic acid Background
2023/4/21
WRKY proteins are one of the largest gene families and are well-known for their regulatory roles in many aspects of plant development, including plant response to both biotic and abiotic stresses. Alt...
Shape optimization of lightweight structures under blast loading
design under uncertainty blast loading
2015/1/12
Structural optimization of vehicle components for blast mitigation seeks to counteract the damaging effects of an impulsive threat on occupants and critical components. The strong and urgent need for ...
Supernova Blast Waves in Low-Density Hot Media: A Mechanism for Spatially Distributed Heating
structure supernova remnants
2014/12/24
Most supernovae are expected to explode in low-density hot media, particularly in galactic bulges and elliptical galaxies. The remnants of such supernovae, although difficult to detect individually, c...
Investigating the Local Granulated Blast Furnace Slag
Activation Cement Clinker Mortar Promotion Slag
2013/1/31
The promotion of blast furnaces slag in construction industry aims at protecting the environment, fighting against the nuisance such as waste dumps and promoting local products. The use of granulated ...
Pyricularia Blast – a Threat to Wheat Cultivation
blast disease non traditional regions Pyricularia Triticum wheat
2014/2/25
Wheat blast disease caused by Pyricularia grisea (telemorph Magnaporthe grisea) has become a serious restriction on increasing the area and production of the crop, especially in the tropical parts of ...
Blast Wave Parameters for Spherical Explosives Detonation in Free Air
ANFO, Blast Wave, Duration, Explosive, Impulse, Overpressure, PETN, TNT
2013/1/28
Several formulations have been published to define the characteristic parameters of an incident blast wave. In almost all previous work, the charge examined has been TNT explosive and overpressure has...
模块式高温气冷堆示范电站（HTR-PM）在山东荣成石岛湾开始兴建，本文通过将THERMIX/BLAST程序嵌入至vPower仿真平台，开发了HTR-PM工程模拟机。其中两个嵌入vPower仿真平台的THERMIX/BLAST程序模块分别模拟2个由堆芯、一回路和蒸汽发生器组成的蒸汽供应系统模块，与利用vPower仿真平台建立的汽轮发电机系统模块相连接，在平台上实现了数据的管理及人机界面。该工程模拟机...
Deconvolution of Images from BLAST 2005: Insight into the K3-50 and IC 5146 Star-Forming Regions
BLAST 2005 the K3-50 IC 5146 Star-Forming Regions
2011/1/10
We present an implementation of the iterative flux-conserving Lucy-Richardson (L-R) deconvolution method of image restoration for maps produced by the Balloon-borne Large Aperture Submillimeter Telesc...
A Monte Carlo Approach to Evolution of the Far-Infrared Luminosity Function with BLAST
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
We constrain the evolution of the rest-frame far-infrared (FIR) luminosity function out to z~3.5 by combining several pieces of complementary information provided by the deep Balloon-borne Large-Apert...
V-BLAST OFDM空间功率扩展
无线通信 V-BLAST 分布式天线系统 功率扩展
2011/5/19
该文在多径衰落信道下，针对分布式发射天线V-BLAST OFDM，提出了一种将数据功率扩展到不同发射天线的信号发射方法。该方法利用了分布式天线间时延，增强了分布式信道的频率选择性，提高了V-BLAST OFDM可获得的分集度。在BPSK调制，M.1225步行测试信道下的仿真结果表明：当误比特率为10-3时，与传统方法相比，该文方法有大于2 dB的功率节省。
该文将空时多用户检测技术和Turbo-BLAST方案相结合，构造了基于CDMA技术的多用户Turbo- BLAST系统模型，提出了不完全信道状态信息条件下的解相关算法和迭代检测算法。在发送端将V-BLAST结构与CDMA技术相结合实现多路复用，在接收端利用空时多用户检测算法去除用户间干扰，得到期望用户的接收信号，然后采用考虑信道估计误差的软干扰抵消迭代检测算法，对期望用户的接收信号进行检测以去除天...
由于异步发射V-BLAST各路子流的符号在时间上未对齐，同步V-BLAST所采用的逐符号功率分配方法不再适用。针对这个问题，该文提出了一种以块平均误比特率为优化目标，逐符号块进行功率分配的方法。该方法首先计算每个符号的瞬时信噪比，然后求出异步符号块的平均误比特率，最后求解优化问题得到各天线的最优发射功率值。平坦瑞利衰落信道下的仿真表明：两发两收、BPSK调制、迫零检测的异步V-BLAST，误比特率...
线型小区中V-BLAST两根分布发射天线的位置优化
分布式天线系统 最优天线位置 信道传播时延
2010/4/12
在分布式发射天线多输入多输出(MIMO)系统中，不同的发射天线位置将影响系统的性能。针对这一问题，该文在考虑了传播时延、路径损耗、阴影衰落、小尺度衰落和高斯白噪声的基础上研究了V-BLAST两根分布式发射天线在线型小区的平均误码率(AABER)。理论分析表明存在一个关于小区中心对称的位置使得AABER性能最优，这一位置可以通过数值计算的方法得到。仿真结果验证了理论分析的正确性。
V-BLAST系统中一种基于噪声分析的简化最大似然检测算法
贝尔实验室垂直分层空时 最大似然 噪声增强
2010/3/8
该文基于对贝尔实验室垂直分层空时系统中的噪声分析，提出了一种简化的最大似然检测算法。该算法选取多维空间中参考直线附近的若干信号点构成候选子集，并利用最大似然准则在该子集中选取合适的向量作为对发射信号的最终估计。性能分析和仿真表明，该算法在保证接近最优误码性能的前提下，具有更低的计算复杂度，并且解决了噪声增强问题。
