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Results indicated that the GABAnergic system inhibition and pre-synaptic transmitter exhaustion may play an important role in short-term plasticity. And the short-term depression in thalamocortical visual pathway was strengthened when the cortex circuit get mature.

结果表明：GABA能系统的抑制作用和突触前递质衰竭很可能是决定该回路短时程抑制特性的主要因素；幼年大鼠与成年大鼠视觉系统短时程突触可塑性的对比研究表明，随着皮层回路的成熟，视觉丘脑至皮层通路的短时程突触抑制作用越来越强。

The results suggest that there is prominent short-term synaptic depression in the rat thalamocortical visual pathway. Presynaptic transmitter depletion and postsynaptic GABAergic inhibition are the main possible mechanisms of this synaptic depression. The short-term synaptic depression is helpful in neuronal correlated firing detection.

以上结果表明：丘脑皮层视觉通路具有显著的短时程突触抑制特性，突触前的递质耗竭和突触后的GABA能抑制系统很可能是产生视通路短时程突触抑制作用的主要机制，突触抑制作用有助于视觉系统对同步发放活动的检测。

However, must clearly recognize that the current stock is still in the downward trend, the downward trend of the whole without any tendency to reverse, the most obvious short average surface now under pressure, on the 5th line to become difficult to break, along the "line of defense"; BOLL channel fully operational in the downlink channel, and there are no signs bottomed; and major trends TRIX and MACD indicators are in a strong explore the stage; OBV indicators downlink unable to fully demonstrate that the market inside and short-term to maintain the disadvantaged pattern indexes to reverse the trend away from the whole is still too early!

但是，必须清醒地认识到，目前的股价仍然处于下降趋势，但整体下降的趋势没有任何扭转的趋势，最明显地表现在短，平均压力下，五日线成为难以打破，沿防御&线&；波尔渠道充分的下行信道的业务，而且没有迹象见底；及基质的主要趋势和MACD的指标是一个强大的探索阶段，成交量净额指标下行无法充分表明，内部和短期市场，维持弱势格局指数扭转这一趋势远离整体还为时尚早！

For the security market with restricted borrowing and short sale unallowed, Options pricing formula are advanced, and the relation between them and Black-Scholes Options pricing formula is discussed. The essence of Black-Scholes Options pricing formula is set forth. To the security market with restricted borrowing and short sale unallowed, stock returns risk pricing formula is advanced and the demonstration analysis of China security market is provided. From the demonstration analysis, arbitrage exists in China security market, which can be applied to explain the riddle of a great deal of China bank money and hot money swarming into China security market.

本文在B-S期权定价的基础上，直接利用股票本身的参数推导出股票收益率风险的定价公式；对不允许融资和卖空的证券市场，给出了看涨期权和看跌期权的定价公式，并讨论了他们和相应B-S期权定价公式之间的关系；对B-S期权定价公式的本质做出了阐述；对不允许融资和卖空的证券市场，给出了股票收益率风险的定义；利用股票收益率风险的新定义，对中国证券市场进行实证分析，得出中国证券市场存在套利，解释了2006年和2007年中国大量银行资金和国外热钱流向中国股市之谜。

Many new detection techniques are proposed, that include: To overcome the faults of cross-terms and short unambiguity range for the common Wigner-Ville Distribution , short-time Fourier transform and Gabor transform are applied to SAR moving target detection. To improve the detection performance of WVD in noise environment, a new technique based on the Cross-WVD is proposed. The application of fractional Fourier transform to chirp signal detection is analyzed and extended to SAR moving target detection. To eliminate the restriction of chirp-Fourier transform, a new modified definition is proposed and applied to SAR moving target detection. To detect multiple moving targets whose scattering intensities are different heavily, the CLEAN technique is combined with the above techniques and the ideal detection performance is achieved. At last, the whole dissertation is concluded.

具体的研究成果如下：针对常用的Wigner-Ville分布在多目标情况下存在交叉项，并且多普勒不模糊范围小的缺点，提出将短时Fourier变换和Gabor变换应用于SAR运动目标检测，分析了其优势所在；为进一步提高Wigner-Ville分布低信噪比条件下的信号检测能力，提出基于互Wigner-Ville分布的运动目标检测方法；分析了分数阶Fourier变换在线性调频信号检测中的应用，提出基于分数阶Fourier变换的运动目标检测算法；对离散Chirp-Fourier变换的定义进行了修正，提出修正的离散Chirp-Fourier变换，克服了限制其应用的约束条件，并用于SAR运动目标检测当中；强度相差较大的多运动目标检测历来是机载SAR技术的一个重点和难点，我们将CLEAN思想融入上述多种算法当中，良好地解决了该问题。

The invention uses low cost grease which are mainly waste resources such as the unedible Jatropha curcas seed oil, the waster oil in the restaurant industry and the acid value oil, etc. as raw materials, thereby enlarging the material sources; because the Rhizopus chinensis CCTCC M201021 full cell lipase which is extremely low in cost is used as the catalyst, the problem of high price catalyst is effectively resolved; the toxic action of the alcohol on the biological catalyst is resolved by the batching fed-batch the short chain alcohol, thereby improving the conversion rate of the short chain alcohol.

本发明以廉价油脂为原料，主要是非可食用性的麻疯籽油以及餐饮业废油、酸价油等废物资源，扩大了原料的来源；采用价格极其低廉的华根霉全细胞脂肪酶作为催化剂，有效地解决了催化剂价格高昂的问题；分批流加短链醇以解决醇对生物催化剂的毒害作用，提高短链醇转化率。

On account of the fact that power system is an intense non-linear, time-varying system which consists of a great many of dynamic unmodeled characteristics and tends to become more complicated, this paper adopts ANN to complete the forecasting task of short term and ultra short term load.

本文采用人工神经网络系统的智能化预测方法进行配电网的短期和超短期负荷预测，对Kohonen网络和BP网络在负荷预测中的应用进行了分析，并给出了综合负荷预测方法的仿真算例。

Major characteristics:The breed has moderate body conformation,with mediumsized head,ununiform shape and depth transverse wrinkle,fairly small and lop ears,short and stout neck,wide and concaved back,arched ribs,large and drooping be11y,short and rough legs,unclamp rump,sleeping pastern,monkey-liked hooves.

主要特性：体型中等，颈粗短，有垂肉，背腰宽，背线多凹陷，肋骨拱曲，腹大下垂，四肢粗短，大腿欠丰满，多卧系，撒蹄，群众称&猴子脚板&，头中等大小，额部有形状和深浅不一的横行皱纹，耳较小、下垂，被毛为黑白花。

Branch cent is very unripe nutritional short branch of sex of unripe reproduction of long branch and side, long vimineous long, pith is small, cerebral cortex is thin, xylem is thick; Short branch is contrary.

枝分顶生营养性长枝和侧生生殖性短枝，长枝节间长，髓小，皮层薄，木质部厚；短枝则相反。

Vison of North America, resembling the weasel and having short ears, a pointed snout, short legs, and partly ''.

鼬一种鼬属的半水生食肉动物，尤指北美的鼬属水貂同其它鼬属动物相似，耳短、口吻突出、腿短且部分趾间有蹼

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐