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This paper consists of three parts: Firstly, we discuss a nonautonomous -species two-patches cooperative Lotka-Volterra diffusion system. Using Brouwer fixed-point theory and Liapunov function, under some conditions, we obtain that the system has a unique globally asymptotically stable positive periodic solution. Secondly, we consider a kind of nonautonomous predator-prey model, in which preys are with stage structure and the predator are with two patches.

中文摘要：本文分三部分讨论三类生态模型周期解或概周期解的存在性及全局渐近稳定性等内容：第一部分讨论了两斑块种群的互惠Lotka-Volterra扩散系统，运用不动点理论和构造Liapunov函数，得到了系统存在唯一一个全局渐近稳定的正周期解的充分条件。

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

With the interface software, the basic data from GIS system and the running data from automatic computation system or from SCADA system can be conveniently formated to the standard database needed by the loss calculation software. According to the data, many flexible measures are taken to avoid the manual data input process and make the calculation result closer to the real value.

该软件通过对GIS系统、计量自动化系统和SCADA系统中各类数据结构的详细分析，制定了数据交互规则，并针对相关数据库的实际情况实现了若干灵活处理，既避免了手工录入数据的繁琐过程，又使线损计算结果能够适应运行需求。

For a particular region, in conformity with it's function, the period of time, it's indoor brightness and it's purpose of use, the intelligent lighting control system can automatize the lighting system with the integrated technologies of computer, communication and digital light regulation.

智能照明控制系统，就是根据某一区域的功能、时段，室内光亮度或该区域的用途，用计算机技术和通讯技术及数字调光技术相结合，使照明系统自动化。

Based on the prior art, the optical engine according to the invention has the improvements that, three optical axis steering components are respectively introduced into red, green and blue light illumination systems, and an optical axis lengthening structure is introduced into the green light illumination system, so that optical axes of the red, green and blue light illumination systems, each of which is from an LED resource to the optical axis steering component, are counterclockwise rotated for 90 degrees, parallel with each other, parallel with an optical axis of a projection lens, arranged in a same plane and positioned under the projection lens, luminous faces of three LED luminous chips of the red, green and blue light illumination systems are in a same plane, and the three LED luminous chips can be mounted on a same heat-radiating plate, therefore, the heat-radiating system has a simplified structure, and the optical engine has reduced size.

在背景技术所述的光学引擎的基础上作以下改进，在红、绿、蓝光照明系统中引入三个光轴转向器件和在绿光照明系统中引入光路加长结构，旨使：红、绿、蓝光照明系统各自的从LED光源至光轴转向器件部分的光轴朝逆时针方向转动90°、互相平行、与投影镜头的光轴平行、居同一平面和位于投影镜头的下方，红、绿、蓝光照明系统的三个LED发光芯片的发光面居同一平面，三个LED发光芯片可安装在同一块散热平板上，散热系统的结构简化，所述的光学引擎的尺寸减小。

Not to inherit by right of primogeniture, gavelkind or borough English, or possess in perpetuity an extensive demesne of a sufficient number of acres, roods and perches, statute land measure (valuation 42 pounds), of grazing turbary surrounding a baronial hall with gatelodge and carriage drive nor, on the other hand, a terracehouse or semidetached villa, described as Rus in Urbe or Qui si sana , but to purchase by private treaty in fee simple a thatched bungalowshaped 2 storey dwellinghouse of southerly aspect, surmounted by vane and lightning conductor, connected with the earth, with porch covered by parasitic plants, halldoor, olive green, with smart carriage finish and neat doorbrasses, stucco front with gilt tracery at eaves and gable, rising, if possible, upon a gentle eminence with agreeable prospect from balcony with stone pillar parapet over unoccupied and unoccupyable interjacent pastures and standing in 5 or 6 acres of its own ground, at such a distance from the nearest public thoroughfare as to render its houselights visible at night above and through a quickset hornbeam hedge of topiary cutting, situate at a given point not less than 1 statute mile from the periphery of the metropolis, within a time limit of not more than 15 minutes from tram or train line (e.g., Dundrum, south, or Sutton, north, both localities equally reported by trial to resemble the terrestrial poles in being favourable climates for phthisical subjects), the premises to be held under feefarm grant, lease 999 years, the messuage to consist of 1 drawingroom with baywindow (2 lancets), thermometer affixed, 1 sittingroom, 4 bedrooms, 2 servants' rooms, tiled kitchen with close range and scullery, lounge hall fitted with linen wallpresses, fumed oak sectional bookcase containing the Encyclopaedia Britannica and New Century Dictionary, transverse obsolete medieval and oriental weapons, dinner gong, alabaster lamp, bowl pendant, vulcanite automatic telephone receiver with adjacent directory, handtufted Axminster carpet with cream ground and trellis border, loo table with pillar and claw legs, hearth with massive firebrasses and ormolu mantel chronometer clock, guaranteed timekeeper with cathedral chime, barometer with hygrographic chart, comfortable lounge settees and corner fitments, upholstered in ruby plush with good springing and sunk centre, three banner Japanese screen and cuspidors (club style, rich winecoloured leather, gloss renewable with a minimum of labour by use of linseed oil and vinegar) and pyramidically prismatic central chandelier lustre, bentwood perch with fingertame parrot, embossed mural paper at 10/- per dozen with transverse swags of carmine floral design and top crown frieze, staircase, three continuous flights at successive right angles, of varnished cleargrained oak, treads and risers, newel, balusters and handrail, with steppedup panel dado, dressed with camphorated wax: bathroom, hot and cold supply, reclining and shower: water closet on mezzanine provided with opaque singlepane oblong window, tipup seat, bracket lamp, brass tierod and brace, armrests, footstool and artistic oleograph on inner face of door: ditto, plain: servants' apartments with separate sanitary and hygienic necessaries for cook, general and betweenmaid salary, rising by biennial unearned increments of 2 pounds, with comprehensive fidelity insurance, annual bonus (1 pound and retiring allowance (based on the 65 system) after 30 years' service, pantry, buttery, larder, refrigerator, outoffices, coal and wood cellarage with winebin for distinguished guests, if entertained to dinner, carbon monoxide gas supply throughout.

505他并不想根据长子继承制、男子平分继承制或末子继承制，把那幢有着门房和马车道的男爵宅邪及其周围那一大片辽阔的英亩、路得和平方杆法定土地面积单位，（估价为四十二英镑的泥炭质牧场地，或者那座被描述为"都会中的田园"或"健康庄"的有阳台的房子或一侧与邻屋相接的别墅，继承下来并永久占有。他只巴望根据私人合同购买一所继承人身分不受限制的不动产：要坐北朝南的一座草屋顶、有凉台的双层住宅，房顶上装起风向标以及与地面相接的避雷针，门廊上要爬满寄生植物，橄榄绿色的正门最后一道工序漆得漂漂亮亮，赛得过马车。门上有着精巧的黄铜装饰。房屋正面是灰泥墁的，屋檐和山墙涂着金色网眼花纹。尽可能让房子耸立在坡度不大的高台上，从那圈着石柱栏杆的阳台上，隔着现在空着、将来也不得占用的牧场地，可以聎望四周的一片好景致。单是自己的庭园，就有五、六英亩之谱。它与最近的公路的距离适度：夜晚从修剪得整整齐齐的鹅耳枥树篱上端和缝隙间，可以瞥见室内的灯光，从首都边界的任何地点丈量，与这所房子相距至少也有法定一英里。不出十五分钟就可以轰电车或火车铁道沿线。（例如往南去登德鲁姆或往北去萨顿，就像是南北两极。经过验证，据说这两处气候都适合肺结核患者。）凭着继承人身分不受限制的不动产转让证拥有房屋和地基，租借期限为九百九十九年。宅邸里包括一间有着凸窗的客厅，一间起居室，四间卧室，两间仆役室。砌了瓷砖的厨房里还安装了多用途的铁灶和洗涤台，休息厅里备有放亚麻布床单衬衫用的壁橱，分成几层的氨熏橡木书柜，放着《大英百科全书》和《新世纪辞典），横陈着一把把中世纪或东洋的古老刀剑；还有通知开饭的锣，雪花石膏做的灯，悬垂着的饰钵，附有电话号码簿的胶木自动电话听筒；手织的阿克斯明斯特地毯，是奶油色质地，周围镶着棋盘图案。有着兽爪形柱脚的牌桌。壁炉装着大型黄铜格栅，炉台上摆着精密的镀金计时表，准确无误地发出大教堂那样的钟声，附有湿度计的晴雨表，蒙着鲜红色长毛绒面子、装着上等弹簧、中心部位富于弹性的舒适的长靠椅和放在角落里的备用椅，日本式三扇屏风，痰盂（俱乐部里摆的那种，用深紫红色皮革制成，只要用亚麻子油和醋一擦，不费吹灰之力就能发出光泽，焕然一新。）室中央悬挂一盏金字塔式枝形吊灯，射出灿烂的光辉。一截弯木上栖着一只驯顺得能停在手指上的鹦鹉，墙上糊着每打价为十先令的压花壁纸，印着胭脂红色垂花横纹图案，顶端是带状装饰；一连三段栎木楼梯，接连两次拐成直角，都用清漆涂出清晰的木纹，梯级、登板、起柱、栏杆和扶手，一律用护板来加固并涂上含樟脑的蜡；浴室里有冷热水管，盆汤、淋浴，设备俱全。位于平台上的厕所里，长方形窗子上嵌着一块毛玻璃，带盖的坐式抽水马桶，壁灯，黄铜拉链和把手，两侧各放着凭肘几和脚凳，门内侧还挂有艺术气息浓厚的油画式石版画。另外还有一间普通的厕所；厨师、打杂的女仆和兼做些细活的女佣的下房里也分别装有保健卫生设备（仆役的工钱每两年递增两英镑，并根据一般忠诚勤劳保险，每年年底发奖金一英镑，对工龄满三十年者，按照六十五岁退职的规定，发退职金）；餐具室、配膳室、食品库、冷藏库、主楼外的厨房及贮藏室等、堆煤柴用的地窨子里还有个葡萄酒窖（不起泡、亮光闪闪的葡萄酒），这是为宴请贵宾吃正餐时预备的。对整座楼房都供应一氧化碳瓦斯。

The results of prediction agree well with the experimental ones. It proves that the thermo-mechanical analysis、the neural network models of flow stress and microstructure as well as the numerical simulation system developed combining coupled thermal-mechanical rigid-viscoplastic FEM with BP neural networks are reliable to describe the hot back extrusion process of Ti15-3 alloy truly. The simulation system has good prediction capacity for the microstructure evolution of Ti-15-3 alloy during hot backward extrusion and after solution treatment. It can be used to replace the experiments for predicting the flowing laws and the distribution of microstructure.

由此证明，本文的热力耦合理论分析、流变应力及显微组织的神经网络预测模型以及采用三维热力耦合刚粘塑性有限元与三层向后传播的人工神经网络相结合的方法开发的Ti-15-3合金筒形件热反挤成形的显微组织数值模拟系统是可靠的，能够真实地描述Ti-15-3合金热反挤工艺过程，并对其反挤成形及固溶处理后的显微组织具有很好的预测能力，可以被用来代替预测其反挤成形规律和组织分布情况的试验。

Davis give the management information system relatively integrated definition, in immediate future administer the information system is one use calculating machine software and hardware resources along with data bank man - the engine system.

1985年，告诫信息系统的创始人，标题尼蔌达大学管理学教授戈登戴维斯提供的管理信息系统的比较完整的定义，在不久的将来管理信息系统是一种使用数据计算与银行计算机软件和硬件资源男子-发动机系统。

ASR significantly automates the process of rebuilding the system, thus allowing you to fully restore your system quickly and efficiently in the event of an emergency or complete system failure, even to a "bare" computer with no software installed.

ASR的重建过程自动化，大大系统让你充分恢复迅速而有效率的制度，您遇有紧急或完成系统故障，甚至到了"裸露"计算机软件安装没有。

In the development process of the mankind marriage system, the development of India marriage system is more special, it evolved along with India social, successively experienced from ancient times of grow surname marriage go to basinet Islamism marriage, from the modern marriage under England rule to the independence of marriage system modernization.

在人类婚姻制度的发展历程中，印度的婚姻制度的发展是比较独特的，它随着印度社会的变化而演化，先后经历了从古代的种姓婚姻到中世纪的伊斯兰教婚姻，从近代英国统治下的婚姻变革到独立后的婚姻制度现代化，其发展道路坎坷曲折，其转变的过程既反映了印度时代的变迁，也明示着人类社会的进步。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。