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A New Method of the Real-time Precise Point Positioning Based on Epoch Difference of Satellite Clock
The traditional real-time precise point positioning(PPP)model uses the satellite absolute clock offset products to achie......
Based on the thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIEGCM),a thermospheric- ionospheric dat......
Optimization of Extraction Process of Total Coumarins from Tibetan Herb Artemisia Subdigitata Mattf.
[Objectives]To optimize the ultrasonic extraction conditions of total coumarins from Tibetan herb Artemisia subdigitata ......
A 1,8-naphthalimide-derived turn-on fluorescent probe for imaging lysosomal nitric oxide in living c
Nitric oxide has played an important role in many physiological and pathological processes as a kind of important gas si......
Concise synthesis of valuable chiral N-Boc-β-benzyl-β-amino acid via construction of chiral N-Boc-3-
Valuable chiral N-Boc-β-benzyl-β-amino acid was concisely synthesized via construction of chiral NBoc-3-benzyl-5-oxois......
The stereoselecfive synthesis of typhoniside,a new cerebrosideisolated from Typhonium giganteum Engl,was accomplished.C......
Studies on organo-phosphorus,-arsenic,and-antimony polytungstates and polymolybdates Ⅴ.Syntheses and
In order to investigate the influence of organic groups on the structural types of organoa-rsenic polymolybdates,benzyl......
Micro-electrophoresis is used to measure the Zeta-potential of three kinds of hydrated calciumsilicates in different cr......
A simple and cost-effective wavelength-switchable fiber ring laser based on a chirped moiré fiber grating(CMFG) and an......
We investigate the coupling characteristics of photonic crystal fiber composed of two cores with different index profile......
Feature extraction for latent fault detection and failure modes classification of board-level packag
A feature extraction for latent fault detection and failure modes classification method of board-level package subjected......
Unlike acceleration, velocity, and displacement, the time derivative of acceleration (TDoA) of ground motion has not bee......
The method for rapidly,precisely and non-invasively localizing functional regions of the brain is a problem in neuromedi......
With dense seismic arrays and advanced imaging methods, regional three-dimensional(3D) Earth models have become more acc......
In this paper, a wild boar head was taken as the bionic research object for the development of new ridgers, a kind of pl......
Influence of Nitrogen Vacancy Concentration on Mechanical and Electrical Properties of Rocksalt Zirc
To study the influence of the nitrogen vacancy(V_N)on mechanical and electrical properties of zirconium nitride deeply,Z......
Crystal Structure and Herbicidal Activity of 5,7-Dimethoxy-(2,4-dichlorophenoxyacetyl- imino)-2H-1,2
The title compound 5,7-dimethoxy-(2,4-dichlorophenoxyacetylimino)-2H-1,2,4- thiadiazolo[2,3-a]pyrimidine has been synthe......
The title compound [Cu(C11H29N5)](ClO4)2 was synthesized and characterized by elemental analysis, IR and X-ray single-cr......
The small Texas schoolthat I went to had atradition carried outevery year during theeighth grade graduation:a beautiful......
GPS detection of the coseismic ionospheric disturbances following the 12 May 2008 M7.9 Wenchuan eart
Here we report two cases of coseismic ionospheric disturbances observed through a GPS network in China after the great W......
Carrierless amplitude and phase(CAP) modulation is generating increasing interest for short-reach optical communications......
研究图像噪声去除步骤中存在局部特征信息缺失问题,提出基于滤波导引冗余字典的图像稀疏去噪方法.该去噪方案利用偏差噪声(附加噪......
主要介绍了轶纶(R)(聚酰亚胺纤维)的综合性能及在滤料行业中的应用,阐述了轶纶(R)的主要理化特性,如长度、细度、断裂强度、断裂伸......
This paper is conced with the problem of H-infinity filtering for discrete-time switched linear systems under arbitrary ......
由电力电子装置广泛应用带来的超高次谐波问题近年来引起关注,但光伏发电超高次谐波发射特性的研究仍不够充分。本文首先以采用双......
本文分析了弧焊电源的传导骚扰的产生机理，介绍了传导骚扰测试标准及测试方法，通过对几种样机的传导骚扰测试表明，虽然添加合适的滤波......
对反投影的计算方法进行了改进,设计了一种能够提高反投影速度的方法。使用这种方法,对模型数据进行了重建,结果表明,这种方法对图......
以SL300和DISA100型系统为例，根据实际工作中遇到的故障，就非法和错误报文而引起的处理程序运行出错造成死机现象作了深入分析。SL30......
针对传统三通道RGB相机在光源光谱已知条件下不能完全恢复物体表面光谱反射率的缺点,本文构造一套多光谱成像阵列相机系统。该阵列......
通过分析倾斜可液化地基的离心机振动台试验,对离心机振动台试验中地基土体位移分析方法进行了研究,得到了能够有效测量和计算可液......
为了解决管道内检测器在复杂环境下里程轮信号信噪比低、里程信息提取困难的问题,提出了一种里程轮信号预处理算法。使用特定指标......
传统的或改进型的中值滤波器，很难在图像噪声滤除和细节保留两方面兼顾与平衡．本文基于粗神经元构建了一种粗集神经网络，该粗集神经网......
根据GB 4824-2013,对注塑机总电源端口的传导发射进行了现场测量,发现150 k Hz~30 MHz的大部分频段均超标。基于注塑机结构分析得......
目前,煤矿井下供水系统水中含有杂质和大量颗粒物,无法充分满足井下乳化液泵站、支架和喷雾冷却系统的用水需求。清洗过滤系统是指......
针对近海飞行的直升机高度测量信号中海浪噪声的干扰,利用有理谱法建立了海浪模型,设计了卡尔曼滤波器估计噪声信号,以获取精确的......
为提高差分密码分析的速度，提出了一种同时采用两个圈特征的差分分析方法，并以简化的8圈DES为例，分别从小存储空间和大存储空间两种情......
用ＥＤＸＲＦ法直接测定锰锌铁氧体中ＭｎＯ、ＺｎＯ和Ｆｅ２Ｏ３含量是采用软、硬件相结合的办法，成功地分解ＭｉｌＫ和ＦｅＫ重迭峰，并对特定基体效应提出具体对策。由２３８Ｐｕ同位素源和正......
在分析反辐射导弹对抗雷达关机所采用的若干技术方案各自特点的基础上,指出被动雷达与捷联惯导复合是第三代现役反辐射导弹采用的......
首先分析并指出了对于零数编码来说 ,小波变换时应当使用原始滤波器系数参与运算 ,而对滤波器系数进行缩放会影响其编码性能 .此外......
详细介绍了库什塔依水电站工程左坝肩强卸荷倾倒岩体的范围,对坝顶高程以下强卸荷倾倒体裂隙所采取的防渗处理措施,包括坝肩开挖进......
以表面活性剂SLL及SLL与Span85的复配物为乳化剂，醇为助乳化剂，煤油为分散介质，在引发剂过硫酸钾的引发下进行了微乳液聚合，制备了聚丙......
为更加高效、精准地测量氡钍子体浓度,探讨了一种测定氡钍子体测量中滤膜自吸收系数的新方法。该方法在不更换滤膜的基础上引入了......
提出一种能使系统取得较好性能鲁棒性的内模PID滤波器参数选取方法。由于内模PID中滤波器参数对闭环系统的动态性能影响明显且由Mo......
本文研究了稳定非高斯环境下的自适应有源噪声控制问题，提出了滤波－ＬＭＡＤ（ｌｅａｓｔｍｅａｎａｂｓｏｌｕｔｅｄｅｖｉａｔｉｏｎ）算法及归一化滤波－ＬＭＡＤ算法，仿真结果表明，与常用的滤波－ＬＭＳ算法和归－化滤波－ＬＭＳ算......
铺设土工织物作为倒滤层的海滨灰坝,稳定验算应同时考虑坝身内外水位差形成的渗流压力和土工织物与碎石层之间存在抗滑薄弱面等因......
Probabilistic Automatic Outlier Detection for Surface Air Quality Measurements from the China Nation
Although quality assurance and quality control procedures are routinely applied in most air quality networks,outliers ca......
为了克服传统的移动定位技术存在的缺陷,通过AOA定位以及TOA定位方式的结合,提出一种单基站AOA/TOA混合定位的方案,对方案中在NLOS......
为了解国内外的钻孔封孔现状,探索更为适用的封孔技术、封孔设备以及验证新型封孔设备实际应用效果,对目前国内外常见的封孔技术进......
在有线电视中,为了充分利用设备和传输线,需要一种具有频率选择的网络-滤波器,将同一线路上不同的信号分开,在电视机中也需要不同......
