进入系统

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

Although the quality and quantity of mobile anti-aircraft gun systems remains unknown, there is no indication of any mobile surface-to-air missile systems other than man-portable systems such as the SA-7 and SA-14 or SA-16 entering the inventory to augment North Korea's static air defense umbrella.

虽然质量和数量的移动高射炮系统仍然未知，目前并无迹象显示有任何的移动型防空导弹的系统以外的其他单兵携带系统，如的SA - 7和SA - 14或SA服务-16进入库存，以加强北朝鲜的静态防空保护伞。

A process for treating the sludge generated by alumina sewage treating system incldues such steps as pumping the alumina sewage in sand depositing pool then in depositing pool, mixing the bottom sludge, the sewage from sand-water separator, and the regenerated water from filter to obtain backflush water, heating in desilicating heater, washing the secondary red mud to recover Na2O and Al2O3, anjd returning the washing liquid containing Na2O and Al2O3 back to the flow of production of alumina.

本发明公开了一种氧化铝废水处理系统的污泥处置新工艺，它将氧化铝废水先进入沉砂池中进行沉砂处理后才进入沉淀池中，将虹吸泥机从沉淀池中吸出的底流污泥和砂水分离器分离出的污水以及将部分经过滤器过滤后所得的再生水作为反冲洗水一起通过污泥泵送到脱硅加热器中加热得污泥热水，然后将污泥热水用于二赤泥洗涤沉降，以回收赤泥附着的Na2O和Al2O3，将洗涤赤泥后含有Na2O和Al2O3的洗液送到氧化铝生产流程中重新使用。

The scintillation CsI was also calibrated with protons of 15, 20, 23MeV. The average energy calibration is 1. 047MeV per channel. Energy calibration for heavy ions was completed with multiplication factor 1/12. 75. The energy calibration is around 1. 1MeV per channel for oxygen ion and iron ions when energy deposition is less than 50MeV in each detector.

对铁离子而言，铁离子的四个能量点在ΔE〓探测器中的能量均超过50MeV，能量信号放大电路此时已进入饱和状态，当铁束能量为120MeV时，离子进入到ΔE〓探测器中，此时在ΔE〓中能量沉积低于50MeV，没有达到电子学系统的饱和值，能量刻度每道为1.1MeV／道，这些与氧离子的标定结果是一致的，饱和只是对于低能重粒子会出现这种情况，对于中高能重离子这种现象就会消失。

The wrapper which is used to encapsulation for isomerous data resource is an important part of it. It makes the outer application system link to service bus, and can interchange of other program section and application system with standard message. It provide wide connect to database, message server and carry-over system, so we in-depth study on it in this paper.

包装器作为系统重要的组成部分，用于对异构数据源进行包装和适配，将外部的应用系统连接进入服务总线，使其能够以标准的消息交换与其它的程序组件和应用系统进行交互，提供了对数据库、消息服务器和遗留系统的广泛连接，本文即对其进行了深入研究。

The teachability, which is a problem of driving the states of a hybrid system to a given region, is realized by designing a state feedback controller of Petri net, the firing conditions of transitions and the controller of the continuous system.

研究了系统的可达性问题，通过设计受控Petri网状态反馈控制、变迁的激发条件和连续系统的控制器，实现系统的可达性，即驱动混合系统的状态进入某一预先给定的状态区域。

At present, in the designs of the air conditioning system of the theatre and modernized office air conditioner system, we adopt underfloor air conditioning system often, the air of this way can enter the workspace, and the air current handled by the air conditioner directly to make, absorb the heat dissipation of the human body and break up wetly, improve the comfortableness of the indoor environment.

目前，在影剧院空调系统和现代化的办公室空调系统的设计中，我们常常采用地板送风空调系统，这种空调送风系统可以使经过空调处理过的气流直接进入工作区，吸收人体的散热和散湿，提高室内环境的舒适性。

At present, a good part of application program base on account and passwords for authentication. Each entering a system needs to import a pair of account and password. Now there are more and more inner enterprise application systems, if employees want to visit resources in these application systems, they have to be logged and certificated repeatedly, and it will greatly reduce the efficiency; In addition, each application system requires users to use strong countersign, and it will be a heavy burden on users to change and memory their countersigns, so it will cause certain information security risks to enterprises and employees.

当前，大部分应用程序基于账号和密码进行认证，每进入一个系统输入一次账号和密码，企业内部应用系统越来越多，员工要访问这些应用系统中的资源，必须经过多次登录与认证，大大降低了工作效率；另外，各应用系统要求用户使用强度较大的口令，更改和记忆口令成了用户的极大负担，为使用方便，很多用户将密码书写在电脑旁，这对企业和用户形成一定的信息安全风险。

The present invention features that fume after dedusting and heavy metal adsorption is fed via fume valve and fume-air heat exchanger to a sea water column desulfurizing system supported by a sea water supply system to eliminate SO2 and a defogging system to eliminate water content and fine dust before exhausted via draught fan and chimney. The slurry after desulfurizing and the dust is fed to an aerating, neutralizing and oxidizing system for exhaust.

其特点是，烟气经过除尘和重金属的吸附经烟气输送系统中所设烟气阀门和气气换热器进入有海水供给系统支持的海水液柱脱硫系统脱除二氧化硫，脱硫后的烟气经除雾系统去除水分和细灰再经引风机通过烟囱排出，脱硫反应后的浆液与脱除的灰尘送至曝气中和氧化系统，达标后通过管道排出。

The list of standard items on the SR5 and Limited grades, includes the 276 hp 4.7L V8 engine and automatic transmission, Toyota's STAR Safety System, Electronic Brake Distribution with Brake Assist, side curtain airbag with rollover sensor, engine immobilizer with alarm, direct tire pressure monitoring system, seating for eight passengers, eight-way manually adjustable driver's seat, four-way manually adjustable front passenger's seat, fold-flat feature for second- and third-row seats, auto tri-zone air conditioning, power windows, locks, back window, keyless entry, AM/FM/CD eight-speaker audio system with a mini-plug for iPod compatibility, rear wiper and defogger, tilt/telescope steering wheel, cruise control, spare tire and mud guards.

关于从SR5和有限等级标准的项目清单，包括276马力的4.7L V8发动机和自动变速箱，丰田的STAR安全系统，电子制动带制动辅助系统，侧帘的翻滚感应器，发动机防盗报警，直接轮胎气囊分布压力监测系统，对8名乘客，8路手动调节驾驶员座椅，四向手动可调前排乘客座椅，折叠功能单位为第二和第三排座椅，自动三区空调，电动车窗，座位锁，后窗，无钥匙进入，调幅/调频/光盘8喇叭音响系统与一个小型的iPod兼容，后雨刷和防雾膜，倾斜插/伸缩式方向盘，巡航控制系统，备用轮胎和挡泥板。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。