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991.
Expected Residual Minimization Method for Stochastic Variational Inequality Problems 总被引:1,自引:1,他引:0
This paper considers a stochastic variational inequality problem (SVIP). We first formulate SVIP as an optimization problem
(ERM problem) that minimizes the expected residual of the so-called regularized gap function. Then, we focus on a SVIP subclass
in which the function involved is assumed to be affine. We study the properties of the ERM problem and propose a quasi-Monte
Carlo method for solving the problem. Comprehensive convergence analysis is included as well.
This work was supported in part by SRF for ROCS, SEM and Project 10771025 supported by NSFC. 相似文献
992.
Li Shirong 《Archiv der Mathematik》1996,67(2):100-105
993.
本文对MOCVD激光诱导选择原子层外延进行了研究,设计并制作了一种激光诱导原子层外延生长室结构,该系统能实现低温MOCVD生产,可形成稳定的层流,易于生长均匀的外延层,通过激光诱导可实现选择性的原子层外延. 相似文献
994.
Bor-Tsung Hsieh Wan-Yu Lin Tsai-Yueh Luo Kai-Yuan Cheng 《Journal of Radioanalytical and Nuclear Chemistry》2007,274(3):569-573
Twenty clinical scale alumina-based 188W/188Re generators and carrier-free 188Re has been produced at the Institute of Nuclear Energy Research (INER-Taiwan) for over ten years. 2845.6 GBq (76.9 Ci) of
188Re-perrhenate solution has been eluted from generators during the past ten years. We have used the harvesting 188Re solution for labeling radiopharmaceuticals, such as 188Re-HEDP, 188Re-MDP, 188Re-microsphere, 188Re-lipiodol, and 188Re-sulfur colloid, etc. The average eluting yield of 188Re is 78.6±5.8% that was investigated at 1115 harvesting times from 20 generators. Each generator can be used more than six
months but the Millipore needs to be changed every two months for smooth harvesting and high yield of 188Re solution. 相似文献
995.
Effects of high pressure on the Raman and fluorescence emission spectra of two novel 1,3,4-oxadiazole derivatives 下载免费PDF全文
The effects of pressure on the fluorescence emission and Raman spectra of 1,4-bis[(4-methyloxyphenyl)-1,3,4-oxadiazolyl]- 2,5-bisheptyloxyphenylene (OXD-2) and on the fluorescence emission spectra of 1,4-bis[(4-methylphenyl)- 1,3,4-oxadiazolyl]phenylene (OXD-1) are investigated using a diamond anvil cell. With the increase of pressure, the intensity of the fluorescence emission increases and reaches maxima at 13GPa for OXD-1 and at 9.6GPa for OXD-2. The effect of pressure on the peak position of the emission shows a similar trend, red shift with the increase of pressure. But at higher pressures, the intensity of emission drops down dramatically. The Raman spectra of OXD-2 indicate that there appears a structural change at ca 3GPa. 相似文献
996.
This paper addresses the NP-hard problem of scheduling N jobs on a single machine with due dates, sequence-dependent setup times and no preemption where the objective is to minimize the maximum tardiness. An algorithm based on branch-and-bound permutation schemes is developed including the implementation of lower and upper bounding procedures, and three dominance rules. Computational experiments demonstrate the effectiveness of the algorithm. In the experiments, the impacts of control parameters to generate test instances on algorithm performance (CPU times) are studied by statistics methods. 相似文献
997.
高速粒子场同轴Fraunhofer全息数据处理系统研究 总被引:3,自引:3,他引:0
介绍了用同轴Fraunhofer全息测量强动载下材料表面微喷射粒子场的数据处理方法.在全息像重建过程中,将再现的三维粒子场由计算机控制分成许多小薄层采集.在数据处理过程中根据图像中粒子边缘,决定在整幅图或局部采用边缘检测的方法提取大粒子,根据图像的灰度分布将图像分成很多小区域,在每个小区域采用不同的阈值分割图像.在处理结果的校正中根据粒子场的特点,去除过大、过小和重复统计粒子.采用该方法得到了粒子的空间分布图像及粒子大小的统计结果. 相似文献
998.
S.T. Lau K.H. Lam H.L.W. Chan C.L. Choy H.S. Luo Q.R. Yin Z.W. Yin 《Applied Physics A: Materials Science & Processing》2005,80(1):105-110
A newly developed ceramic fibre hydrophone with an active element as small as 0.25 mm in diameter is described in this work. Lead magnesium niobate-lead titanate (PMN-PT) ceramic fibre with a nominal composition of 0.65Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 was fabricated by an extrusion method. PMN-PT single crystals were ground to a powder form and then mixed with poly(acrylic) acid to form a homogenous slurry. The fibre was extruded by pressing the slurry through a spinneret and then sintering at 1250 °C for crystallization. The electrical characteristics of the PMN-PT fibre were evaluated by measuring the relative permittivity and the impedance spectrum. A piezoelectric PMN-PT fibre hydrophone was fabricated and its sensitivity, angular response, and spatial resolution were evaluated. The fibre hydrophone provides good spatial resolution, angular response and receiving sensitivity. PACS 43.58.+z; 77.84.Dy 相似文献
999.
Yonglan Luo 《Colloid Journal》2007,69(3):391-393
Nearly spherical, submicrometer-scale gold nanoparticle aggregates about 250 nm in diameter are formed directly from an HAuCl4-p-phenylenediamine aqueous solution at room temperature. The as-formed aggregates were characterized by various techniques,
including scanning electron microscopy, transmission electron microscopy, and X-ray diffraction, and their formation mechanism
is discussed. It is very interesting that “supracrystals” can be produced with the use of such gold aggregated nanoparticles.
The text was submitted by the author in English. 相似文献
1000.
Y. Meyer小波的一般形式 总被引:1,自引:0,他引:1
首先我们证明了,如果尺度函数有紧支集,来自多尺度分析的小波函数的支集形式,然后我们证明了Y.Meyer小波的尺度函的一般形式。最后给出了它的另外两种形式和对应的Y.Meyer小波。 相似文献