查询词典 function key

Key management is the core problem of network system security, which deals with the correlative problems from key being generated to ultimately destroyed; it includes system initialization, key generation, key encasement, key distribution, key storage, key renovation, key destruction, etc. Thereinto key distribution and key storage are the two most intractable taches of key management.

密钥管理问题是网络系统安全中首要的核心问题，它是处理密钥自产生到最终销毁的整个过程中的有关问题，包括系统的初始化，密钥的产生、装入、分配、存储、更新、吊销和销毁等内容，而密钥的分配和存储是密钥管理中最为棘手的两个环节。

The method includes steps: digital watermark technique is adopted to hide information of key data in not key data codes of compressed image; under protection of digital watermark, using protective backup for key data detects whether normal transmitted key data is correct or not so as to detect error code; carrying out cyclic mutual backup by using macro blocks in same positions in front and back macro block set; embedding coded motion vector in form of digital watermark to DCT transformation coefficient, and ensuring that video data are not influenced as best as one can; when error code occurs, if key data backup is correct, then the backup replaces former key data; otherwise, using mean value of key data in adjacent macro blocks within same frame to replace former key data approximately.

本发明中，采用数字水印技术在压缩图像的非关键数据编码中隐藏关键数据信息；通过数字水印保护下的关键数据保护备份来检测正常传输的关键数据是否正确，由此来检测传输误码；用前后宏块组中相同位置的宏块进行循环相互备份；对运动向量进行编码，然后以数字水印的形式嵌入到相对不重要的DCT变换系数中，同时保证视频数据尽量不受影响；在误码发生时，如果关键数据备份正确，则直接替代原关键数据，否则用同一帧内相邻宏块的关键数据的平均值近似替代原关键数据。

Though comparing Canny operator and center B spline dyadic wavelet, the following conclusion is proven in this dissertation: a Center B spline function has tight support and Canny operator hasn't. b Center B spline function asymptotic convergence to Gaussian function and the derivative of Center B spline function asymptotic convergence to Canny operator. c The derivative of fourth order center spline B function is more suitable as a optimal edge detector than Canny operator. d Center B spline function can balance the smoothing and approximation of original data, and the fourth center B spline function is the only optimal solution of two order smoothing problem. e The error between the valve of time-frequency uncertainty of the fourth center B spline function and the lower bound of time-frequency uncertainty does not exceed 0.143% of the lower bound. f The derivative of center spline B function can construct a stability dyadic wavelet and can give a fast algorithm for multiscale edge detection, but Canny operator can do neither.

作者给出了Canny算子与中心B样条二进小波严格的比较证明，得出如下结论：a中心B样条函数具有紧支集，Canny算子不具有紧支集。b中心B样条函数的极限收敛于高斯函数，中心B样条函数的导数收敛于Canny算子。c四阶中心B样条函数的导数比Canny算子更接近最佳边缘检测滤波器。d中心B样条函数比高斯函数更能兼顾对原函数平滑和逼近的折中要求，并且四阶中心B样条函数是二阶逼近问题的唯一最优解。e四阶中心B样条函数的时频测不准关系值与时频测不准关系下界的逼近误差不超过0.143％。f中心B样条函数的导数可以构成稳定的二进小波，存在快速的多尺度算法；而Canny算子不构成稳定的二进小波，无法给出快速的多尺度算法。

The problem of multi-objective usually meet many conflict each other and can not use the objective of the same standard unit, then to employ membership function of fuzzy theory,at first each objective function to change fuzzy set and express with membership function, membership function include the maximum constraint, minimum constraint, the decrease function of monotonic property, to become optimal of the multi-objective function, but still to scanty of weighting value with regard to adjustment of objective function, thus this thesis proposes the method of combine orthogonal arrays and particle swarm optimization to solve the problem of multi-objective optimal power flow, each objective function separately add weighting value, to setting each weighting value of objective function in order to the result of anticipating.

多目标最佳化的问题通常会面临到许多互相冲突且不能用同ㄧ标准单位的目标，於是利用模糊理论中的归属函数，首先将各目标函数转换成模糊集合并以归属函数表示，归属函数包含了最大限制值、最小限制值、单调的递减函数所组成，将各目标函数利用归属函数表示，形成单一目标函数的最佳化，但是仍缺乏权重值对於目标函数的调整，於是本篇论文提出ㄧ种权重值设定与粒子群优演算法的方法去解决多目标最佳电力潮流的问题，将各目标函上分别加上权重值设定各目标函数的权重值，得到预期的效果。

Along with the time development, the computer technology more and more thorough various trades and occupations, have provided thorougher and a convenient service for the general users In order to realize raises department's working efficiency, uses the resources fully, reduces the nonessential manpower, physical resource and financial resource goals and so on disbursement, presented various information management system The paper will design university student's dormitory information management system's Web and realizes using the solution The university student's dormitory information management system is one safe and the highly effective proprietory system, designs specially for the information engineering institute This system has used many technologies, for instance JSP, JDBC, Web service and so on The proprietory system use's database is SQL the Server 2000 databases The university student's dormitory information management system's major function includes: May realize to the student's dormitory information inquiry function, including fast inquiry function and classified inquiry function; To the student's dormitory information's input function, the revision function, deletes the function and the statistical function Realizes the dormitory Control section through the system above function regarding the student's dormitory information current management, namely facilitates the dormitory administrative personnels to keep abreast of the student lodging situation and the billeting situation comprehensively promptly; Has provided some simple data inquiry for the user and outputs each kind of information and so on

随着时代的发展，计算机技术越来越深入各行各业，为广大的用户提供了更为周到和便捷的服务。为了实现提高部门的工作效率，充分利用资源，减少不必要的人力，物力和财力的支出等目的，出现了各种各样的信息管理系统。论文将设计一个高校学生公寓信息管理系统的Web应用解决方案并予以实现。高校学生公寓信息管理系统是一个安全和高效的专用系统，专为信息工程学院设计。这个系统使用了很多技术，比如JSP，JDBC ，Web服务等。专用系统使用的数据库是SQL Server 2000 数据库。高校学生公寓信息管理系统的主要功能包括：可以实现对学生公寓信息的查询功能，包括快速查询功能和分类查询功能；对学生公寓信息的录入功能，修改功能，删除功能和统计功能。通过系统上述功能实现公寓管理部门对于学生公寓信息的日常管理，即方便公寓管理人员及时全面地掌握学生住宿情况及公寓分配情况；为用户提供了一些简单的数据查询并输出各种信息等。

Pressing the UP/DOWN key to select the contents of inner playing format, pressing the LEFT/RIGHT key to select the previous or the next page. And you can select the playing modes such as Normal, Repeat one, Repeat All by pressing the MODE key. When selecting one page, pressing the OK key, then it will start to play. During the playing, pressing MODE key to select 11 different tone such as Jazz, class, dance, heavy, disco, soft , live, hall, flat, rock, pop. Pressing REC key to make A-B recycle playing, pressing OK key to pause.

按上下选择键进行内部播放格式目录选择，按左右选择进行目录下的上一页面和下一页面的选择，在当选择的页面时，可按机体侧面的MODE键选择播放模式(如：顺序播放，单曲循环，全曲循环)三种播放模式，当选择要播放的页面时，按五方向键中的OK键，此时可进入播放状态，在播放过程中，按MODE键可进行11种音效选择(爵士乐，聚会，舞蹈，重低音，狄斯高，柔软声，活泼，大厅，平坦的，摇滚，爆劲jazz class dance heavy disco soft live hall flat rock pop)，操作REC键可进行A~B回放，按方向键中的OK键可暂停播放或播放功能。

Pressing the UP\/DOWN key to select the contents of inner playing , pressing the LEFT\/RIGHT key to select the previous or the next page. And you can select the playing modes such as Normal, Repeat one, Repeat All by pressing the MODE key. When selecting one page, pressing the OK key, then it will start to play. During the playing, pressing MODE key to select 11 different tone such as Jazz, class, dance, he**y, disco, soft , live, hall, flat, rock, pop. Pressing REC key to make A-B recycle playing, pressing OK key to pause.

按上下选择键进行内部播放格式目录选择，按左右选择进行目录下的上一页面和下一页面的选择，在当选择的页面时，可按机体侧面的MODE键选择播放模式(如：顺序播放，单曲循环，全曲循环)三种播放模式，当选择要播放的页面时，按五方向键中的OK键，此时可进入播放状态，在播放过程中，按MODE键可进行11种音效选择(爵士乐，聚会，舞蹈，重低音，狄斯高，柔软声，活泼，大厅，平坦的，摇滚，爆劲jazz class dance he**y disco soft live hall flat rock pop)，操作REC键可进行A~B回放，按方向键中的OK键可暂停播放或播放功能。

If as a result of body shell keycap stuck with the key causes of the "key card" failure, may be key in the cap and put a gasket between the pads can be used稍硬some plastic (such as floppy disk jacket abandoned) made, its size is equal to or slightly larger than the key body size, and location by the rod through the ammonium can open a free passage under the square hole, in accordance with its set of poles, the plug cap; use this pad chip cap with the key body to prevent stuck, you can repair button; If as a result of spring fatigue, shrapnel resistance causes large card key failure, then the Special button to open the body, a little stretching to restore flexibility to reset the spring; Remove the key precursor to the resumption of shrapnel.

若是由于键帽与键体外壳卡住的原因造成"卡键"故障，则可在键帽与键体之间放一个垫片，该垫片可用稍硬一些的塑料做成，其大小等于或略大于键体尺寸，并且在按杆通过的位置开一个可使铵杆自由通过的方孔，将其套在按杆上后，插上键帽；用此垫片阻止键帽与键体卡住，即可修复故障按键；若是由于弹簧疲劳，弹片阻力变大的原因造成卡键故障，这时可特键体打开，稍微拉伸复位弹簧使其恢复弹性；取下弹片将键体恢复。

A kind of knap sack public-key cryptosystem which is based on intractability of factoring big integer was proposed to introduce a trusted authority. TA generates the RSA public key and the private key with the RSA algorithm which transforms the primitive public key of knap sack public-key cryptosystem to the ordinary knap sack sequence, and it is publicize as a public key of knap sack public-key cryptosystem.

通过引入可信中心机构TA，TA用RSA算法生成RSA公钥和私钥，用RSA公钥把背包公钥密码体制的原始公钥变换成普通的背包序列作为背包公钥公布，提出了一种基于大数难解问题的背包公钥密码体制。

Soft specializes in the production of EVA, Paper superscript, subscript pants, shoes superscript, rubber shoes at the end of mobile Block, PU products, football pendants, pendants cartoon, ball, rugby, acrylic key chain, compass key chain, crystal stone key clasps, leather key chain lights, flashlight key chain, key chain lightsé, tape measure key chain, PP fan, drink coasters, crystal coasters, pen, cushions, Trolltech Kai bottles, metal bottles Kai, Non-woven bag, bank bags, raincoats, aprons,×melamine, plates, bowls, plastic cups, cartoon, bank card sets, book sets, plexiglass and other products.

专业从事生产EVA软胶、皮标、裤标、鞋标、橡胶胶鞋底、手机座、PU类产品、足球挂件、卡通挂件、皮球、橄榄球、亚克力匙扣、指南针匙扣、水晶石匙扣、仿皮灯钥匙扣、电筒匙扣、验钞灯钥匙扣、卷尺钥匙扣、PP扇子、杯垫、水晶杯垫、笔筒、桌垫、奇趣瓶启、金属瓶启、无纺布袋、银行袋、雨衣、围裙、密胺烟缸、盘、碗、塑料杯、卡通片、银行卡套、存折套、有机玻璃等系列产品。

Researches reveal that students who suffer from corporal punishment tend to resort to violence in their future life.

研究表明遭受过肉体惩罚的孩子倾向于在他们今后的人生中使用暴力。

Total sugar of sarcocarp and chlorophyll of pericarp increased firstly, and then decreased afterward along with altitude; Titratable acidity, ascorbicacid and anthocyanin of pericarp were increased along with altitude; The content of protein increased firstly and decreased afterward along with altitude; Carotenoid of pericarp were decreased along with altitude.

果肉总糖和果皮叶绿素含量随海拔高度升高先升高后降低；可滴定酸、维生素C和果皮花青苷含量均随海拔升高而升高；蛋白质在1720m处最大，1420m处最小；果皮类胡萝卜素随海拔升高而降低。