Har相关论文
近年来,随着信息技术的发展和存储能力的提高,基于高频数据的HAR族模型在对各类金融市场波动率的预测研究中表现出了优异的预测效......
随着全球经济一体化进程的加快,国内金融市场的系统性风险和不确定性也随之增加,一个市场或者金融机构的风险可能会通过不同途径扩......
A neural network-based commutation optimization strategy and drive system design for brushless DC mo
An optimized commutation method based on backpropagation (BP) neural network is proposed to resolve the low stability an......
Harmful algal bloom-forming dinoflagellate Prorocentrum donghaiense inhibits the growth and photosyn
Harmful algal bloom (HAB) is an ecological disaster to local mariculture.At present,its impact on macrophytes has not be......
With the development of Laser Induced Breakdown Spectroscopy(LIBS), increasing numbers of researchers have begun to focu......
Sn-rich Au–Sn solder bonding has been systematically investigated for low cost and low temperature wafer-level packagin......
我们按等提出的铍的特效官能团合成了8-羟基萘-3,6-二磺酸-(1-偶氮-1)-2,4-间苯二酚(HAR),并对其用于铍的光度测定进行了研究。在......
A bandpass filter with twin wideband channels in a single-layer guided-mode resonance grating is presented.Strong refrac......
<span style="font-family:Verdana;">Today, energy is a vital component in the functioning of a hospital. Hospital technic......
Mechanical properties of the Zr41Ti14Cu12.5Ni10Be22.5 bulk amorphous alloy at different temperatures were investigated. ......
Iridium thin films have been deposited on SigN4(100 nm)/Si(100)substrates by magnetron sputtering.And then iridium film ......
Microstructure and dry sliding wear behavior of cast Al-Mg_2Si in-situ metal matrix composite modifi
The microstructure and dry sliding wear behavior of cast Al-18 wt% Mg2Si in-situ metal matrix composite modified by Nd w......
AleSi based alloys are interestingly used to produce automotive components. Fabrication of such components by powder met......
China is a large agricultural and the most populous country,so it is a crucial importance for the food security. The bas......
Objective: To explore the effect of NO on the spontaneous acrosome reaction in antisperm antibody (AsAb) positive rat s......
Numerical methods successively became important in the design and optimization of fluid machinery. However, as noise emi......
This paper was a brief summary based on 20cases (17 necropsies and 3 biopsies) of silicotu-berculosis (ST) documented i......
In this paper, the behaviors of aqueous zinc sorption by hydroxyapatite in the co-existence of Pb2+, Cd2+ and Cu2+ are i......
Everyone, when first stationed in a foreign country, experiences “culture shock” to some degree. In the works of the ......
China and Malaysia are long-term trading partners. The trade volume between two countries is increasing continuously. Si......
This paper described an effective method to implement human & hardware in the loop simulation(HHILS), which is based on ......
take up 1. 接受（建议或挑战） He was afraid to take up a challenge. 他害怕接受挑战。 2. 拿起 Take up your arm......
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7050-T7451 aluminum alloy plates was friction stir welded at different welding parameters.Mechanical properties of the j......
Effect of Grain Size on Mechanical Properties of Nickel-Free High Nitrogen Austenitic Stainless Stee
The fine grained structures of nickel-free high nitrogen austenitic stainless steels had been obtained by means of cold ......
Microstructure and mechanical properties of Al-Mg-Mn-Zr-Er weld joints filled with Al-Mg-Mn-Zr and A
The Al-Mg-Mn-Zr-Er alloy sheets with a thickness of 4 mm were welded by TIG welding, the microstructures and mechanical ......
Influence of thermomechanical aging on microstructure and mechanical properties of 2519A aluminum al
The influence of thermomechanical aging on microstructure and mechanical properties of 2519A aluminum alloy was investig......
Yves Béhar1967年出生于洛桑(瑞士西部城市,日内瓦湖北岸),在瑞士长大,母亲是德国人,父亲是土耳其人。Yves Béhar在欧洲和美国学......
Mechanical Properties and Microstructure Evolution of Cold-deformed High-nitrogen Nickel-free Austen
The mechanical properties and microstructure evolution of cold-deformed CrMnN austenitic stainless steel annealed in a t......
This paper presents most properties of radiation from a tapered Apple-II undulator. The study demonstrates that tapering......
In order to approach the medium-range prediction of great earthquakes with Ms≥6, the author investigated the relation ......
This paper presents some research information on the effects of Zn, Cu and Ni on the microstructure and mechanical prope......
Effect of Post-weld Heat Treatment on Mechanical Characteristics of AZ31 Magnesium Alloy Welded Join
Tungsten inert gas(TIG) welding was performed on 2.7 mm thick commercial extruded AZ31 B magnesium alloy plates. We inve......
The sources of ship-radiated noise rhythms are analysed and the common types of rhythms aredemonstrated in this paper.Th......
The impact of long-range dependent (LRD) traffic on the buffer management schemes for WDM packet switches is studied by......
A modified time domain orthogonality algorithm (MTDO) for adaptive filters is presented anddescribed. The results of co......
以建设中的晋东南—南阳—荆门1000kV特高压输电线路为工程背景,针对输电铁塔风致响应较复杂的特点,进行了气弹模型风洞实验。输电......
Relationship Between Anthocyanin Biosynthesis and Related Enzymes Activity in Pyrus pyrifolia Mantia
The aim of this article is to study the relationship between biosynthesis of anthocyanin and activities of phenylalanine......
Motion and emotions are two critical features of human presence and activities.Recent developments in the field of indoo......
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Knowing the locations of nodes in wireless sensor networks (WSN) is essential for many applications. Nodes in a WSN can ......
In order to establish methods for indentification and screening of rice genotypes with high nitrogen (N) efficiency, N a......
This paper investigates motion coupling disturbance(the so called surplus torque)in the hardware-in-the-loop(HIL)experim......
基于RT-LAB实时仿真平台设计了双馈异步电机并网发电的整体系统,给出了双变流器的矢量控制方案。应用解耦理论,分别对网侧和转子侧......
In this study,several kinds of flexible protective materials sprayed with polyurea elastomers(hereinafter referred to as......
异种移植是最终解决全球性供体器官严重短缺问题的最有效途径之一.异种移植中的超急性排斥反应(xenogeneic hyperacute rejection,......
By optimizing formulation and fabrication methods, a new binder for plasticizing powder extrusion molding ofhard metal, ......
建立逆变器并联系统模型,揭示直流侧共模电压和漏电流产生原因.根据PWM脉冲产生机理以及数字实现特点,从不同调制方式脉冲规律出发......
