Phased相关论文
水的存在可以极大的影响矿物、熔体、流体的物理和化学性质,少量的水便可显著改变地幔物质的熔点、电导率、粘性、密度和波速等性......
To meet the application requirements for a Ka-band space-based TT&C terminal for a launch vehicle,this paper proposes th......
Numerical simulations of partial elements excitation for hemispherical high-intensity focused ultras
The hemispherical phased transducer maximizes the coverage of the skull and the ultrasonic energy per unit area of the s......
To overcome the inherent limits of traditional single wave imaging for nondestructive testing,the multi-wave focusing an......
Diffraction of plane P waves by a canyon of arbitrary shape in poroelastic half-space (Ⅰ): Formulati
This paper presents an indirect boundary integration equation method for diffraction of plane P waves by a two-dimension......
The non-integral dimensions ultrasonic phased arrays and their scanning and testing methods in a borehole are studied.Fi......
Numerical simulation of an acoustic field generated by a phased arc array in a fluid-filled borehole
The acoustic tools widely used in borehole well logging and being developed in borehole acoustic reflection imaging do n......
Numerical study on scanning radiation acoustic field in formations generated by linear phased array transmitters in a fl......
Since 1996 when the Asian Chemical Fiber Conference was born,the world’s chemical fiber configuration has undergone str......
Hybrid simulation has been shown to be a cost-effective approach for assessing the seismic performance of structures. In......
The cover picture is taken from the article“An Optimal Sorting of Pulse Amplitude Sequence Based on the Phased Array Ra......
Photoluminescence properties and energy transfer of a single-phased white-emitting NaAlSiO_4:Ce~(3+)
A series of tunable phosphors NaAlSiO_4:Ce~(3+),Sm~(3+) were synthesized using a conventional high-temperature, solid-st......
It is leamed from official sources that China’s shipping development target for coming years has been set forth as fol......
Multiple-input multiple-output (MIMO) radar is a new concept with some new characteristics,such as multiple orthogonal w......
Optical phased array technology is introduced and the steering performances of liquid crystal phased array are discussed......
Ce3+/Eu2+ co-doped LiBaBO3 phosphor was synthesized by high temperature solid-state reaction method, and its luminescent......
The NaCl-H_2O binary system is a major component of solutions coexisting with ores. Observation ofsaturated solutions o......
A tunable yellow emission from three-band emission of singly doped single-phased phosphor BaY_2S_4:H
The establishment of an approach to design tunable yellow emission through singly doped single-phased phosphors to obtai......
In this article,we report the first experimental demonstration of an eight-wavelength λ/8 phased-shifted laser array ba......
A typical sequence of fluvial terraces and aeolian deposits overlying these ter- races were multidisciplinary investigat......
Numerical simulations of partial elements excitation for hemispherical high-intensity focused ultras
The hemispherical phased transducer maximizes the coverage of the skull and the ultrasonic energy per unit area of the s......
Phased array feeds(PAFs),which illuminate the dish with digitally synthesized beams instead of separated horns,provide t......
Ultrasound imaging is the most widely used noninvasive medical imaging modality. Its latest elite concept is Superharmon......
An Ultrasonic Phased Array(UPA) transducer is presented for borehole imaging and casing inspection in acoustical logging......
Of the 150 billion RMB government bondsissued in 2002, 9 billion RMB shall bebudgeted to fund technological innovationp......
Hydrogenation and Anisotropic Expansions in R_3Fe_(29-x)T_x (R=Y, Ce, Nd, Sm, Gd, Tb and Dy; T=V and
A systematic study of the phase formation, structure and magnetic properties of the R3Fe29-xTxcompounds (R=Y, Ce, Nd, Sm......
There are many advantages in the hydrothermal preparation of multinary oxides in the form of fine powder. The moderate ......
Effect of substrate temperature on microstructure and optical properties of single-phased Ag_2O film
Using a radio-frequency reactive magnetron sputtering technique,a series of the single-phased Ag2O films are deposited i......
Endorectal ultrasonography versus phased-array magnetic resonance imaging for preoperative staging o
AIM: To compare the diagnostic accuracy of pelvic phased-array magnetic resonance imaging (MRI) and endorectal ultrasono......
Laboratory cased-hole acoustic logging simulations are developed with the linear phased-array transmitter in scaled case......
Having great advantages of small size,high reliability,large amount of informa-tion,low power consumption,low loss in T/......
A novel technique to obtain injection locked oscillators phase tuning beyond 180° is demonstrated. The idea is to casc......
High-intensity focused ultrasound with large scale spherical phased array for the ablation of deep t
Under some circumstances surgical resection is feasible in a low percentage for the treatment of deep tumors. Nev-erthel......
The CSR power supply system has been put into operation since 2007.There are some problems in existence.The low frequenc......
The HTR Fuel Element R & D Program,set in 1987,aims to develop the manufacturetechnology of HTR fuel element and to pro......
As foreign venture capital pours in,China’s home improvement industry begins a new round of reshuffling“We have sold w......
Two parallel methods for magnetic resonance tmaging (MRI) using radio frequency (RF) phased array surface coiks, named ......
A novel adaptive sampling interval algorithm for multitarget tracking is presented.This algorithm which is based on inte......
Wigner Frequency Point Slice Analysis of Superposition Data for Phased-Array Ground Penetrating Rada
According to the frequency property of Phased-array ground penetrating radar (PGPR), this paper gives a frequency point ......
The bandwidth characteristic of phased array antenna can be represented by the extent of beam broadening as signal bandw......
A search strategy based on the maximal information gain principle is presented for the cued search of phased array radar......
To gain the tradeoff between lower sidelobe and higher power amplifiers efficiency,a transmitting beam shaping scheme wi......
A two-dimensional(2D)optical true-time delay(TTD)beam-forming system using a compact fiber grating prism(FGP)for a plana......
A cued search algorithm with uncertain detection performance is proposed for phased array radars.Firstly,a target search......
Unidirectional emissions from dielectric photonic circuits decorated with plasmonic phased antenna a
Thanks to resonant characteristics of metallic nanoparticles, optical waves scattered from plasmonic nanoantennae can be......
近年来,超声相控阵技术广泛应用于工业无损检测领域。在检测过程中,检测材料和检测系统等方面的扰动因素会造成超声检测回波信号明......
A 60 GHz phased array system for mm - wave frequency in 5G is introduced and a 5 bit digitally controlled phase shifter ......
介绍了两种适于毫米波应用的RF MEMS实时延时线的设计.首先,在设计中采用了一种新颖的RF MEMS拓宽调节范围的变容器结构,得到了最......
