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This paper proponed a correlation and risk assessment approach to solve these problems, which exploited constructed security correlation model to compote real-dine risk for every security event (such as alert, operating system log record, and so on), and gave out new alerts for high risk events while discard low risk ones so as to reduce false positive and false negative rate.

提出了一种利用关联和风险评估的方法，利用构建的安全关联模型，计算出每个安全事件（如告警事件、系统安全日志记录等）的实时风险值，对风险值较高的事件给出新的警告，并摈弃那些风险值较低的事件，从而降低漏报和误报率。

Students become self-contempt as the mistakes caused by themselves. so, in mathematics teaching, if the teachers can dissimulate skillfully, they can be able to take care of students' fragile feelings, and give students strength to overcome difficulties and setbacks so as to enter the virtuous cycle track, gradually "turning around" in learning.

学困生由于学习上的失误而引起自卑，在数学课堂教学中，教师若能巧妙地装装糊涂，就能呵护他那脆弱的情感，给他注入发奋学习的"强心剂"，增强战胜困难与挫折的信心，使他在数学的学习上进入良性循环的轨道，渐渐"脱困"。

The preparation method is characterized in that:(1) at minus 10 DEG C to 10 DEG C, a chloroauric acid solution with a certain concentration is added into a nano-Pt/C catalyst by ultrasonic or stirring mixture and the atomic ratio of Pt to Au is controlled between 18:1 and 5:1;(2) a small amount of monohydric alcohol or dihydric alcohol or trihydric alcohol of C1-C3 is added and is stirred at minus 10 DEG C to 10 DEG C for 10 min to 5h, so as to prepare the carbon-loading Pt-Au bimetallic nano electro-catalyst;(3) if necessary, the catalyst obtained by the step (2) is treated for 0.5 to 4h at high temperature ranging from 100 DEG C to 700 DEG C in the inert or reducing atmosphere, so as to adjust and control the grain size of the Pt-Au bimetallic nano electro-catalyst.

本发明涉及了一种高稳定性碳载Pt-Au双金属纳米电催化剂的制备方法，其特征在于：(1)在-10～10℃中，将一定浓度氯金酸溶液加入到纳米Pt/C催化剂中经超声或搅拌混合，控制Pt∶Au的原子比为18∶1-5∶1；(2)添加少量C 1 -C 3 的一元、二元或三元醇类，在-10～10℃下搅拌10min-5h，制备了碳载铂金双金属纳米电催化剂；(3)视需要，可将步骤(2)得到的催化剂在惰性气氛或还原气氛中经100～700℃高温处理0.5-4h，可调控Pt-Au/C双金属纳米催化剂的粒径。

I wish to be a soft handkerchief so as to wipe the sweat and dust from my teacher; I also wish to be a bouquet of Cordate telosma so as to accompany my teacher at night.

我愿是一块轻柔的纱巾，为老师擦去汗水和灰尘；我愿是一束夜来香，和星星一起陪伴在老师身旁。

3Through analysis of the calculate results and actual fact of Shaanxi province, we can still attain below information: The latest rank of index of new economy in China shows: Shaanxi is the eighth, but the GDP per person is NO.29, so the technology and resource advantages of Shaanxi are far to convert to economic advantage, Finally, how to make the technology of the Shaanxi converting to realistic productivity farthest, and make the technology advantage converting to economic advantage, and make the big province of technology becoming a powerfully economic province which is worthy of the name, the dissertation suggests grasping a few aspects as follows: Set up the idea of exploitation new technology, establish the motive mechanism of technology innovation, establish the mechanism of guarantee the budget of scientific research, establish the mechanism of guarantee scientific personnel, construct the fair competition market environment, allotment technology resources openly in the most possible, make the resources to be allotted and used with high-efficiency, at the same time, relying on the resources advantage of Shaanxi, proceed the technique reform and technique penetration, so as to creates the higher benefit.

最后，就如何使陕西的科技优势最大限度地转化为现实生产力，使科技优势转化为经济优势，使科技大省成为名副其实的经济强省，笔者建议从以下几个方面抓起：树立新的科技开发观念、建立科技创新的动力机制、建立科研经费保障机制、建立科研人员保障机制、营造公平竞争的市场环境，科技资源分配尽可能地公开，使资源得到较高效率的配置和使用，同时，依托陕西的优势资源，进行技术改造和科技渗透，以创造出更高的效益。本研究具有以下创新点：一是使用先进的研究方法，把计算机计算和新的数学方法相结合，使计算简单化、准确化；二是使用了先进的研究思路，把陕西省和其他地区置于同一系统内，使用同一的数据处理方法和统计口径，使计算结果更科学、更符合实际，且具有可比性。

China Engineering and the teaching has yet to fully utilize the power of MATLAB, MATLAB existing books mostly as a computer application tool there, not with the specific disciplines of organic materials combined, MATLAB GUI interface design, will be teaching content according to a certain order of the structure, using simple language, a rich display screen in front of the students. not only improes the students interested in this program, also makes some of the more abstract concepts of the past and the process of teaching students to reflect difficult to understand and master the content, through iid, image of the method explained to the students, so that students more easily understand and grasp. MATLAB and the emergence of soling this problem, MATLAB based on its powerful calculation and graphics functions so as to sole the problem, The system is controlled teaching address the dull, abstract characteristics do.

而我国工科类的教学还未能充分利用MATLAB的强大功能，现有的MATLAB书籍大都作为计算机应用工具书出现，未能与具体学科的教材有机地结合起来，MATLAB中的GUI界面设计，将教学内容按照一定的结构顺序，用简洁的文字、丰富的画面展现在学生面前，不仅提高了学生学习本课程的兴趣，还使得一些比较抽象的概念和过去教学过程中学生反映难以理解和掌握的内容，通过生动、形象的方法向学生阐明，使学生更容易理解和掌握，而MATLAB的出现解决了这一问题，MATLAB基于它强大的计算和绘图功能从而解决了这一问题，本系统就是针对解决控制教学中的枯燥，抽象的特点而做的。

Just as that which we designate by the name of "chariot," has no existence apart from axle, wheels, shaft, and so forth: or as the word "house" is merely a convenient designation for various materials put together after a certain fashion so as to enclose a portion of space, and there is no separate house - entity in existence:- in exactly the same way, that which we call a "being," or an "individual," or a "person," or by the name is nothing but a changing combination of physical and psychical phenomena, and has no real existence in itself.

就像是我们指定的名字叫&战车&已不存在除车轴，车轮，轴，等等：或用&家&仅仅是一种方便的指定各种材料整理后，某时装，以便附上的一部分空间，而且没有单独的房子-实体存在：-在完全相同的方式，即我们所谓的&正&或&个人&或&人&，或由名称只不过是一个不断变化的结合，身体和心理现象，并没有真正的存在本身。

Based on the relationship between the numerical aperture of the objective lens and scale pitch, this study chooses a suitable Plano-convex lenses available on the market, so as to approximate the diameter of the focusing spots to scale pitch. Also, by using the optical path of an optical encoder similar to the nanoscale, the changes in the surface profile of the scale can be measured directly, so as to obtain the two quadrature sinusoidal signals. By counting the zero crossing of these two quadrature sinusoidal signals and calculating the interpolation value of these two quadrature sinusoidal signals, the moving direction and moving displacement value of the scale can be obtained.

研究中再以搭配物镜的数值孔径与尺条间距的关系，选择ㄧ适当的市售平凸透镜，使聚焦光点的直径与尺条的间距相近，并使用相同於奈米级长行程双雷射聚焦读头装置的光路设计，如此将可藉由直接量测尺条的表面轮廓变化，以获得一组正交弦波讯号，继而利用讯号四分割与细分割处理，计算出尺条之移动方向与移动量，研制出一实用性长行程双雷射聚焦读头光学尺。

When code stream is passing through the decoder for variable length code, first, prefix analyzer is utilized to find packet information so as to obtain length of current code and pseudo base address; then, four least significant bits of the code are added to pseudo base address through accumulator so as to obtain address of the code in code table.

码流经过可变长码解码器时，首先使用前缀分析器查找分组信息，得到当前码字的长度和伪基础地址，然后使用累加器把这个码字的最低4位和伪基础地址相加，获得该码字在码表中的地址，从而获得解码信息，完成解码。

NJWGY3665 bacterial strain is inoculated in a glucose nutrient culture medium to carry out the slant culture, the culture temperature is 28 to 37 DEG C and the culture time is 2 to 6 days;(2) seed culture: a spore which is cultured on a slant is produced into a single-spore suspension by using sterile water, which is also inoculated in a seed culture medium for culture, the temperature is 28 to 32 DEG C, the rotational speed is 200rpm and the culture lasts for 2 to 6 days;(3) fermentation culture: the seed liquid is inoculated in a fermentation culture medium for culture, the temperature is controlled at 28 to 37 DEG C, the pH is controlled at 6.0 to 9.0, the rotational speed is 180 to 220rpm, the fermentation lasts for 5 to 9 days, so as to obtain the Streptomyces sp., methanol or ethanol is used for the extraction and separation of mycelium through the method of centrifugal separation, then the resin method is adopted for carrying out refining, so as to obtain the peptide antibiotics enramycin.

NJWGY3665菌种接到葡萄糖营养培养基中，进行斜面培养，培养温度28-37℃，培养时间2-6天；(2)种子培养：用无菌水将斜面上培养的孢子制成单孢子悬液，并接种到种子培养基中培养，温度为28～32℃，转速为200rpm，培养2-6天；(3)发酵培养：将种子液接种到发酵培养基中培养，温度控制在28-37℃，pH控制在6.0-9.0，转速180-220rpm，发酵5-9天，得到链霉菌，采用离心分离的方法将菌丝体用甲醇或乙醇进行提取分离，再采用树脂方法进行精制，获得多肽类抗生素安来霉素。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。