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Unfortunately, it has been shownthat these methods are not suitable to study about chemical bonds due to not involvingchemical bonds. In order to consider chemical bonds obviously, we have proposed an atom-bondelectronegativity equalization model on the basis of density-functionaltheory and electronegativity equalization principle. The main contents of our atom-bond electronegativity equalization model contain:(1)Considering the fact that there are varies of chemical bonds in molecules andpartitioning the molecular electron density as summations of atomic electron densitiesand chemical bond's electron densities, we obtained the basic equations of atom-bondelectronegativity equalization model: the expression of the total energy 〓, theexpression of the atom electronegativity 〓 and the expression of the bondelectronegativity 〓.

为了明确地考虑和处理分子中存在的化学键，以便能够更好地描述体系中的电荷分布进而准确地描述分子体系中的有关物理化学性质，尤其是与化学键有关的物理化学性质，我们在密度泛函理论和电负性均衡原理基础上提出了原子-键电负性均衡模型，原子-键电负性均衡模型的主要内容是：(1)考虑到分子体系中存在各种化学键这个事实，将分子空间看成是由原子区和化学键区组成的，将分子的单电子密度表达成为分子中各组成原子的单电子密度和各化学键的单电子密度的加和，从而得到了原子-键电负性均衡模型的基本方程：分子体系总能量〓和分子中原子电负性〓和化学键电负性〓表达式。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

1 If the Lender is contingently liable or will or may be so liable in respect of any moneys obligations or liabilities hereby secured, then the Borrower shall not be entitled to request the Lender to execute a receipt or otherwise discharge the security hereby constituted unless and until the Borrower shall have paid to the Lender the entire amount for which the Lender is contingently or will or may be so liable

6.2.1 如贷款人对由本契据担保归还的任何款项、义务或债务负上或有法律责任，或将负上或可能负上法律责任，则借款人无权要求贷款人签立收据或以其他方式解除本契据构成的抵押，除非借款人已就贷款人负上或有法律责任、或将负上或可能负上法律责任的款额，全数向贷款人支付，则作别论

In the equivalent transformation of the circuit, it can just treat the negative resistance as the positive resistance and use the Ohm theory.

讨论了用Multisim实现负电阻的仿真和分析的方法，得出负电阻和负电阻的串并联连接以及负电阻和正电阻的串并联连接电路中，负电阻的处理方法与正电阻一致的结论。

The incidence of anxiety and depression in patients with FD was higher than that in healthy volunteers; The average extent of anxiety and depression of FD patients was significantly higher than that of healthy people (p 0.001). 2.The total scores of life events and the scores of negative life events in patients with FD was significantly higher than that of healthy group (p=0.014 and p 0.001), but the favorable life events scores was lower than healthy group's(p=0.001). 3. Eight healthy conceptions in the health-related quality of life of FD patients was significantly lower than that of healthy volunteers (p .001). 4. There was positive correlation among the symptom iterated integral, anxiety evaluation and depression evaluation of the FD patients (p0.001). 5. In the FD patients, there was no significant correlation between the evaluation of symptoms and life events. 6. In the FD patients, there was no significant correlation among symptoms evaluation, energy and body ache, and negative correlation among the other 6 health conceptions (p 0.05). 7. There was significant positive correlation among the total scores of life events、negative life events scores and anxiety evaluation of the FD patients(p.01),and also with depression evaluation(p.05),there was no significant correlation among the favorable life events scores with anxiety and depression evaluation both. 8. There was negative correlation among anxiety evaluation, depression evaluation and 8 health conceptions of the FD patients (p 0.001). 9. There existed negative correlation respectively among the total scores of life events and negative life events scores with 6 health conceptions of the FD patients (p 0.05) and 7 health conceptions of the FD patients (p 0.05), there was no significant correlation among the favorable life events scores and the health-related quality of life of FD patients.

结果：1、FD患者焦虑、抑郁的发生率明显高于健康对照组(p.005)，平均焦虑、抑郁程度高于对照组(p.001)。2、FD患者经历的生活事件总值(p=0.014)和负性生活事件值(p.001)明显高于健康对照组，正性生活事件值低于对照组(p=0.001)。3、FD患者的生活质量在8个健康概念上均明显比健康人差(p.001)。4、FD患者的症状积分与焦虑评分、抑郁评分呈正相关(p.001)。5、FD患者的症状积分与生活事件值均无相关性。6、FD患者症状积分与活力、躯体疼痛之间无明显相关性，与其余6项健康概念均呈负相关(p.05)。7、FD患者的生活事件总值、负性生活事件值与焦虑评分均显著正相关(p.01)，与抑郁评分也均呈正相关(p.05)，正性生活事件值与焦虑和抑郁水平均无相关性。8、FD患者焦虑评分、抑郁评分与8项健康概念均呈负相关(p.001)。9、FD患者生活事件总值和负性生活事件值分别与生活质量8项健康概念中的6项和7项呈负相关(p.05)，正性生活事件值与生活质量无关。

In other words,an affirmative answer are given for the question on the set of factorization indicesof completely positive realizations of a graph raised by N.

关于完全正矩阵：本文给出圈的双非负实现为完全正的一个充要条件，并确定其非负分解指数和非负分解；证明完全正图的非负分解指数集没有缺数，换句话说，给出了关于图的完全正矩阵实现的非负分解指数集的N。

Generally, instrumental rumination helped to reduce negative mood, emotional-focused rumination worsened negative mood, and meaning-searching rumination increased the duration of negative mood. Moreover, in the period of severely and long-term negative mood status, instrumental rumination seemed to maintain the duration of positive mood, emotional-focused rumination still worsened negative mood, and meaning-searching rumination seemed to prolong the duration of negative mood. Besides, in the period of negative mood episode, instrumental ruminative had no effect on mood fluctuation, emotional-focused rumination deteriorated and extended negative mood, and meaning-searching rumination had harmful effect on the negative mood but still had borderline effect on the positive mood.

整体平均来说，功用性反刍有助於负向情绪的缓解、情绪焦点反刍会增强负向情绪感受、意义寻找反刍则是增加负向情绪维持的时间；若当天处在长期又严重情绪不佳日子中时，功用性反刍似有维持正向情绪的效用、情绪焦点反刍则是恶化当天的负向情绪强度、意义寻找反刍则有延长当天负向情绪时间的趋势；若连续处在长期且严重情绪不佳的日子中，功用性反刍对情绪变化并无影响、情绪焦点反刍则是延长且恶化此时期的负向情绪状态、而意义寻找反刍不但会影响负向情绪的状态，似也会有助於此时期的正向情绪状态。

The fiber length has only little influence on the basic density within the growth rings, and significant correlation at 0.01 levels was found between the basic density and the fiber length among the different rings. Only slight negative correlation was found between the basic density and the fiber width within the growth rings, but significant positive correlation at 0.01 levels was indicated between the basic density and the fiber width among the growth rings, contrary to that of fiber length. It was demonstrated that significant positive correlations at 0.01 levels between the basic density and fiber double wall thickness, fiber length to width ratio and double wall thickness to diameter ratio, significant negative correlations at 0.01 levels between the basic density and fiber diameter and diameter to width ratio, only slight negative correlation between the basic density and fiber width both in the same growth rings and among the different growth rings. No significant correlation was found between the basic density and the vessel morphological features, nor was the tissue proportion in the same growth rings. But among the different rings, it was found there was significant positive correlation at 0.01 levels between the basic density and the fiber proportion among the different rings, and significant negative correlation at 0.01 levels between the basic density and vessel-elements proportion and ray proportion, only slight negative correlation between the basic density and the parenchym proportion. Significant or no significant negative correlation was found between the basic density and the microfibril angle in the same growth rings, but significant negative correlation was found between the basic density and the microfibril angle among the different growth rings.

生长轮内纤维长度对基本密度的影响不大，而在不同生长轮间纤维长度与基本密度达极显著正相关，纤维宽度与此相反，同一生长轮内纤维宽度与基本密度极显著负相关，不同生长轮间只有微弱负相关；基本密度与纤维双壁厚、长宽比、壁腔比在生长轮内和生长轮间均呈极显著正相关，而与胞腔直径、腔径比均呈极显著负相关，仅与纤维宽度呈微弱的负相关；导管形态对基本密度的影响不显著；同一生长轮内组织比量对基本密度的影响也不显著，但不同生长轮间基本密度与纤维比量呈极显著正相关，与导管比量和木射线比量呈极显著负相关，与轴向薄壁细胞比量仅呈不显著负相关；生长轮内基本密度与微纤丝角呈显著或不显著负相关，但在生长轮间这种负相关达到极显著水平。

These transfers, instead of utterly perishing from the senior students' language use, turned to become fewer along with the development of their English pragmatic competence and extending of English learning experience. It was also showed that native speakers generally understood and accepted the students' Chinese-derived negative pragmatic transfer in spite of the fact that such transfers were different from their ways of saying things in similar speech situations. At the same time, native speakers displayed a conservative attitude concerning the recommendability of negative pragmatic transfers for classroom teaching.

本研究发现：中国学生的语用负迁移不止Kasper（1992）所说的两种，而是三种，即：语用语言负迁移、社交语用负迁移和语用修辞知识负迁移；这些语用负迁移没有因为学生的英语语用能力的提高和英语学习时间的增长而全部消失，而只是逐步减少；对于这些语用负迁移，美国大学生们大都认为它们不同于本族语者在同样语境下所说的话，它们的意思也大多可以理解和接受，可是感到在教学中不宜向学生推荐使用。

the 160 women judoists are tested for mental fatigue and personality tests, and the paper tries to reveal their situation of mental fatigue, personality characteristics, and the relationship between them.it is analyzed that chinese elite judoists have no severe mental fatigue; judoists' negative evaluation on emotional/physical exhaustion and sport increase significantly one week before competition than two months; among personality factors, excitability predicts the decrease of achievement and emotional/physical exhaustion reliably on negative; the stability predicts sport on negative; tension predicts emotional/physical exhaustion on positive; adaption and anxiety in dimension personality predicts in positive both in the decrease of achievement and emotional/physical exhaustion and internal extraversion does them in negative; health personality in applied dimension personality predicts in negative in the decrease of achievement, emotional/physical exhaustion and negative evaluation of sport when mental fatigue, stability and sensitivity predicts the decrease of achievement in negative; only internal extraversion in dimension personality predicts the decrease of achievement and emotional/physical exhaustion in positive.

摘 要：以160名女子柔道运动员为被试，进行运动员心理疲劳以及人格测试，并尝试揭示女子柔道运动员的心理疲劳状况、人格特征以及二者之间的关系。分析得出：我国优秀柔道运动员心理疲劳程度并不严重；运动员在临赛前一个星期较赛前二个月情绪/体力耗竭以及运动的负评价显著提高；人格因素中的兴奋性对成就感的降低以及情绪/体力耗竭两维度均有可靠的负向预测作用；稳定性对运动的负评价维度具有可靠的负向预测作用；紧张性对情绪/体力耗竭有可靠正向预测作用；次元人格中适应与焦虑对成就感的降低以及情绪/体力耗竭均有可靠正向预测作用，内外向性对成就感的降低、情绪/体力耗竭以及运动负评价都有可靠负向预测作用。应用性次元人格中健康者的人格对运动员心理疲劳的对成就感的降低、情绪/体力耗竭以及运动负评价均有可靠的负向预测作用；稳定性、敏感性对临赛前成就感的降低维度的变化有可靠的负向预测作用；次元人格中只有内外向性对临赛前成就感的降低以及情绪/体力耗竭维度的变化有可靠的正向预测作用。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。