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991.
论薄板坯连铸连轧产品质量优势 总被引:1,自引:0,他引:1
廖喆 《金属材料与冶金工程》2003,31(4):7-10
通过对薄板坯连铸连轧工艺的分析,深入研究了其产品的质量优势,同时还指出了在产品生产过程中需要重点注意解决的一些问题。 相似文献
992.
993.
A theoretical evaluation of the potential application of a device with inclined plane for determining the dynamic coefficient
of friction is given. Structural changes in the device that make it possible to increase its precision are proposed. Computational
equations for estimating the resolution of the device are presented.
__________
Translated from Izmeritel’naya Tekhnika, No. 11, pp. 24–26, November, 2007. 相似文献
994.
In this article, results are presented of annual simulations of a decentralized (regional) plant for the power and heat supply of a residential complex. This complex consists of four houses with 40 flats all in all. The annual power consumption of the complex is 157 MWh and the heat requirement is 325 MWh. The concrete dynamics of the energy demands over the year is taken into consideration. The energy supply system is composed of a power-controlled combined heat and power (CHP) plant (55 kW), a photovoltaic plant (PV array or PV plant) array for power generation as well as a field of solar thermal collectors with a short-term accumulator for water heating and a long-term accumulator for supplying heat for domestic heating purposes. Simulation results demonstrate that synergetic effects result from the combination of a CHP plant with wind power and PV plants of varying sizes, which have an effect on the cost effectiveness of the plant as a whole with the different dynamics of energy sources (wind and solar energies) and of the consumption of power and heat being the decisive factors. The power deficits of wind power and PV plants are compensated through the application of a natural gas-operated CHP plant. In almost all variants, the demand for fossil energy carriers is distinctly less than in conventional energy supply plants. 相似文献
995.
王卫军 《煤炭学报(英文版)》2003,9(1):17-21
The movement principle of sidewalls and floor of extraction opening is analyzed, it is found that floor heave not only has something to do with the floor strata, but sidewalls. The effect of sidewall anchor and corner anchor is studied, the mechanical principle of reinforcing sidewalls and corners is put forward and applied in engineering practice. 相似文献
996.
997.
Yu. S. Yakovlev 《Cybernetics and Systems Analysis》2003,39(5):765-776
Distinctive features of architectural-structural organization and use of memory networks are considered with the aim of choosing an optimal configuration in designing distributed computer systems. 相似文献
998.
Motion picture films are susceptible to local degradations such as dust spots. Other deteriorations are global such as intensity
and spatial jitter. It is obvious that motion needs to be compensated for before the detection/correction of such local and
dynamic defects. Therefore, we propose a hierarchical motion estimation method ideally suited for high resolution film sequences.
This recursive block-based motion estimator relies on an adaptive search strategy and Radon projections to improve processing
speed. The localization of dust particles then becomes straightforward. Thus, it is achieved by simple inter-frame differences
between the current image and motion compensated successive and preceding frames. However, the detection of spatial and intensity
jitter requires a specific process taking advantage of the high temporal correlation in the image sequence. In this paper,
we present our motion compensation-based algorithms for removing dust spots, spatial and intensity jitter in degraded motion
pictures. Experimental results are presented showing the usefulness of our motion estimator for film restoration at reasonable
computational costs.
Received: 9 July 2000 / Accepted: 13 January 2002
Correspondence to:S. Boukir 相似文献
999.
自适应相干噪声衰减技术 总被引:6,自引:0,他引:6
去除噪声是必需的地震数据处理过程。由于地表条件和地震波激发、传播以及接收条件等诸多方面的原因,时常引起地震记录上出现各种相干干扰波。本文主要针对地震数据处理中地震剖面上存在的各种相干噪声,提出了时问一空间域自适应相干噪声衰减技术,以进行信噪分离。这种方法把噪声在整个处理平面上的视速度近似看作常量(正值或负值),可以有效地消除地震剖面上的线性噪声、面波以及多次波等,并且对信号的保真度高。本文方法是复杂地区低信噪比地震数据处理的一种理想的噪声去除方法,具有运算速度快、压制噪声效果好等优点。 相似文献
1000.
股票期权的会计处理方法研究 总被引:2,自引:0,他引:2
经理人股票期权是对管理者实行的长期激励制度,由于我国制度上的缺陷,目前在我国没有统一的处理方法,本文讨论的主要是在国际上股票期权的确认、计量以及在会计报表中披露的会计方法。 相似文献