查询词典 tackle key problems

In this context, we propose a time deployment based, pairwise keymanagement scheme called TDBK. In TDBK, the network lifetime is divided intoseveral consecutive network deployment statuses which are separated by nodedeployment events. Each node to be deployed is assigned its key informationthrough a special two-tier key predistribution mechanism, and timely deletes theuseless part of the key information through the key elimination mechanism eachtime the pairwise key establishment is finished in terms of a new nodedeployment event.

在此背景下，我们提出了一种基于时间部署的对****管理方案(Time Deployment Based Keying，TDBK)，该方案将网络的生命周期分为多个连续的网络部署状态，相邻的部署状态之间通过节点部署事件分隔，每个节点通过特殊的两级****预分配机制来获得用于建立对****的****信息，随后通过****清除机制在每次节点部署事件发生时进行的对****建立过程完成后及时地删除其中无用的****信息。

Make signal be called binary system numeral to make for the make of binary system signal, the binary system make and is divided into a binary system to move key to control(2 ASK), the binary system Pin move key to control(2 FSK), the binary system mutually move key to control(2 PSK) with bad cent the binary system mutually move key to control(2 DPSK) etc. variety basic type, this topic main is numeral the frequency make and call Pin to move key to control.

调制信号为二进制信号的调制称为二进制数字调制，二进制调制又分为二进制幅移键控（2ASK）、二进制频移键控（2FSK）、二进制相移键控（2PSK）和差分二进制相移键控（2DPSK）等多种基本的类型，本课题主要是数字频率调制又称频移键控。

According to password which establishes, uses two pressed keys realizations password the input function, after the password input is correct, locks opens, if inputs three passwords are not correct, locking presses a key 3 seconds, simultaneously discovered reports to the police the sound, after has not pressed a key presses down 3 kinds, only then opens the pressed key locking function; Otherwise still had the pressed key in 3 seconds to press down, relocked presses a key 3 seconds time and reports to the police

根据设定好的密码，采用二个按键实现密码的输入功能，当密码输入正确之后，锁就打开，如果输入的三次的密码不正确，就锁定按键3秒钟，同时发现报警声，直到没有按键按下3种后，才打开按键锁定功能；否则在3秒钟内仍有按键按下，就重新锁定按键3秒时间并报警

This thesis is divided into six parts. The first chapter is preface, the current status of research in the inverse problems for parabolic partial differential equations is reported; the second chapter is "regularization methods for numerical differentiation and their applications ", in this chapter we investigate many regularization methods from a viewpoint of regularization theory and algorithm, some applications in the inverse problems for parabolic partial differential equations are given; the third chapter is "spectral regularization methods". Based on Fourier analysis, within the framework of regularization theory, we apply the spectral methods to some ill-posed problems. Many numerical experiments are done in order to show the validity of the methods; the fourth chapter is devoted to wavelet dual least squares method and a revised wavelet method; in the fifth chapter,we combine finite difference method with method of lines and apply it to the backward heat conduction problem in time; in the sixth chapter "identification problems for unknown source ", the essence and the degree of two problems related to source identification are pointed out, at the same time, some numerical methods are reported.

本文分为六个部分，第一章前言简要分析了国内外抛物型偏微分方程反问题的研究现状；第二章数值微分的正则化及其应用从正则化理论和算法的角度出发，考察了许多正则化方法，还给出了数值微分在抛物型偏微分方程反问题的一些应用；第三章谱正则化方法是在Fourier分析的基础上，在一般正则化理论的框架下，给出了这种方法在各种不适定问题中的应用，数值实验表明谱方法是有效的；第四章研究了小波对偶最小二乘方法和改进的小波方法；第五章主要研究了有限差分方法结合线方法在时间反向热传导问题中的应用；第六章是未知源识别问题，主要指出了两类未知源问题的不适定程度和不适定本质，同时报告了一些数值方法。

Additionally, a great deal of contradictions and problems in current Chinas socio-economic development, such as, the problems caused by duality structures in urban and rural areas, three main problems in rural area (problems in agriculture, in rural areas and with farmers), problems in industrial structure adjustment, urban planning and infrastructure construction, rational utilization of land resource and ecological environmental protection etc, unexceptionally have close connections to relative lag of urbanization.

更重要的是，当前中国社会经济发展中的诸多矛盾和问题如城乡二元结构与"三农"问题、产业结构调整问题、城市规划与基础设施建设问题、土地资源合理利用和生态环境保护问题等等，无例外的与我国城镇化发展相对滞后有密切的联系。

The ways to deal with other problems in the numerical simulations of injection-molding filling process, such as multicontinued field problems, multigate problems and weldline formation problems, are presented in this thesis, a simplified algorithm is also developed to solve axisymmetrical problems.

一种新的简化的温度场模型用来计算充模过程中熔体前缘附近的温度场，区域内温度场计算时，引入了温度边界层模型，显著简化了计算过程。

Main business products : Plastic's spring rope, mobile rope, mobile chain, mobile's accesories, mobile convenience nip, mobile wipe, key ring, hand ring, EVA sunbonnet , fishing rope, key hang brand which is extensively be used in mobile, stationery, fishing tackle, fitness equipment, hardware tool, dress' accessory, gambling house's chip and all sorts of promotion Gifts, advertisement's gifts.

专业生产：塑料弹簧，塑胶弹簧，玩具弹弓线，塑料钥匙链，钥匙扣，浴室手环，手圈，手机弹簧绳，手机挂链，手机绳，手机吊绳，手机饰品，手机配件，钥匙吊牌，渔具失守绳，文具台笔，健身器材弹簧配件，五金工具弹簧配件，出口服装的塑料弹簧配件，赌场筹码挂链，以及促销礼品，广告礼品等塑胶类挤出产品及配件。

Based on KT-01 nickel catalyst, the scientific research personnel of our company and the expert group of the former subject group from Lanzhou University made joint efforts to tackle the key problems and successfully developed the 2nd generation of KT-02 supported nickel catalyst through in-depth study on the technical formula, catalytic activity and other mechanisms and taking modified carrier, the properties of acid and alkali, the degree of decentralization of active ingredients on the carrier surface, and fundamental breakthrough has been achieved on the aspects of catalytic activity, specific surface area, bulk density, etc, and the technical defects of KT-01 nickel catalyst are completely overcome; the catalytic activity becomes higher, the starting temperature becomes lower, the industrial serviceability temperature is lowered and the yield increased.

在KT-01型镍催化剂的基础上，我公司科研人员与兰州大学原课题组专家联合攻关，通过对工艺配方及催化活性等机理的深入研究，从载体改性、酸碱性、活性组分在载体表面的分散程度等方面入手，成功开发出第二代KT-02负载型镍催化剂系列产品，在催化活性、比表面积和堆密度等方面都有根本性突破，彻底克服了KT-01型镍催化剂的技术缺陷，使催化活性更高、启动温度更低，降低了工业使用温度，提高了生产收率。

Problems such as imbalances in economic and social development between urban and rural areas as well as across different regions, the extensive pattern in economic development, demographic, resource and environmental strains as well as problems beleaguering employment, social security and income distribution remain to tackle.

城乡之间、地区之间、经济与社会发展之间还不平衡、不协调，经济发展方式粗放，人口、资源、环境压力大，劳动就业、社会保障、收入分配等方面问题仍然较多。

However, there are still many serious problems in the field of teacher training for researchers to tackle. The main problems are listed below

但是，在肯定成果的同时，我们也必须正视在现有的教师培训中还存在一些严重的误区和问题，概括而言，主要体现在以下三方面

It's not quite as simple as that.

并没有那么容易。

It debuted in 1992 in Japan and the United Kingdom, and 1993 in the United States.

它首次亮相于1992年在日本和英国，在美国1993年。