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41.
二滩电站建设资金多渠道筹集。二滩电站是在新经济体制下进行建设的。由我公司自己进行建设,自己进行商业运行,自己偿还贷款,电站工程规模大,工期较长,资金 全部工程造价中所占比例较大。主要工程项目由承包商承包施工。管理资金铁路子是树立三大观念,抓住两个重点,实施资金目标管理,对资金实施情况进行考核和分析。通过以上工作,保障了工程建设的顺利进行,降低了资金成本。 相似文献
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根据所藏月光石的光薄片鉴定研究,阐述了月光石的美学特征和产生原因。介绍了月光石的产出特征和相应的月光石文化,同时介绍了我国关于“和氏壁”属性与月光石关系的研究历史及现状。 相似文献
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卡通是大众所钟爱的一种艺术形式,在这样一个文化多元而开放的时代,人们推崇的卡通形象无论从造型、个性与角色背景方面都呈现出显著的"草根化"趋势,而这种趋势已成为推动卡通文化流动和发展的原动力之一。 相似文献
48.
Chun‐Wei Liu Chi‐Hung Lee Shih‐Chieh Lin 《Journal of the Society for Information Display》2012,20(12):646-652
This study proposes a roll‐to‐roll process‐based sub‐wavelength grating, which is attached on a light bar to turn the side‐lit red/green/blue (620, 520, and 450 nm) incident rays into a uniformly and normally output white light with high illuminance from the light bar's surface. On the basis of the rigorous coupling wave analysis, the relationship between the first‐order transmission/reflection efficiency and the pitch of the gratings with different shapes was analyzed. The optimal design can effectively reduce the coupling length and enhance the white color balance for display applications. 相似文献
49.
Register allocation for write activity minimization on non-volatile main memory for embedded systems
Yazhi Huang Author VitaeTiantian Liu Author Vitae Chun Jason XueAuthor Vitae 《Journal of Systems Architecture》2012,58(1):13-23
Non-volatile memories are good candidates for DRAM replacement as main memory in embedded systems and they have many desirable characteristics. Nevertheless, the disadvantages of non-volatile memory co-exist with its advantages. First, the lifetime of some of the non-volatile memories is limited by the number of erase operations. Second, read and write operations have asymmetric speed or power consumption in non-volatile memory. This paper focuses on the embedded systems using non-volatile memory as main memory. We propose register allocation technique with re-computation to reduce the number of store instructions. When non-volatile memory is applied as the main memory, reducing store instructions will reduce write activities on non-volatile memory. To re-compute the spills effectively during register allocation, a novel potential spill selection strategy is proposed. During this process, live range splitting is utilized to split certain long live ranges such that they are more likely to be assigned into registers. In addition, techniques for re-computation overhead reduction is proposed on systems with multiple functional units. With the proposed approach, the lifetime of non-volatile memory is extended accordingly. The experimental results demonstrate that the proposed technique can efficiently reduce the number of store instructions on systems with non-volatile memory by 33% on average. 相似文献
50.
Insulator-based dielectrophoresis (iDEP) has been successfully used for on-chip manipulations of biological samples. Despite
its effectiveness, iDEP typically requires high DC voltages to achieve sufficient electric field; this is mainly due to the
coupled phenomena among linear electrokinetics: electroosmosis (EO) and electrophoresis (EP) and nonlinear electrokinetics:
dielectrophoresis (DEP). This paper presents a microfluidic technique using DC-offset AC electric field for electrokinetic
concentration of particles and cells by repulsive iDEP. This technique introduces AC electric field for producing iDEP which
is decoupled from electroosmosis (EO) and electrophoresis (EP). The repulsive iDEP is generated in a PDMS tapered contraction
channel that induces non-uniform electric field. The benefits of introducing AC electric field component are threefold: (i)
it contributes to DEP force acting on particles, (ii) it suppresses EO flow and (iii) it does not cause any EP motion. As
a result, the required DC field component that is mainly used to transport particles on the basis of EO and EP can be significantly
reduced. Experimental results supported by numerical simulations showed that the total DC-offset AC electric field strength
required to concentrate 15-μm particles is significantly reduced up to 85.9% as compared to using sole DC electric field.
Parametric experimental studies showed that the higher buffer concentration, larger particle size and higher ratio of AC-to-DC
electric field are favorable for particle concentration. In addition, the proposed technique was demonstrated for concentration
of yeast cells. 相似文献