极多

The concept of zero-path tracking in homotopy is generalized into minimum-path tracking and a new method for the training of multi-layer perceptron is thus put forward──the homotopic BP algorithm. An analysis is made on the convergence property of the proposed method.

采用同伦BP算法进行多层前向网络的训练高小榕，杨福生（清华大学电机及应用电子工程系北京100084）摘要本文把同伦论中零点路径跟踪的概念推广到多层前向网络能量函数极小点路径的跟踪，从而提出多层前向网络一种新的训练方法──同伦BP算法（包括教师同伦和输入同伦），并且分析了其收敛性质。

This invention relates to MIMO test method in a multi-user MIMO radio communication system including: estimating the channel matrixes of all users at the base station, computing an orthogonal projecting matrix M of the interference matrix of each user and transmitting M to each user periodically, receiving data sent by the base station at the user end and getting the orthogonal projecting matrix M from the received data, transforming the MIMO test of a desired user to the minimum value of a K-element secondary convex function, in which, K expresses the number of sending antennas and getting estimation of the test data by a ball test method.

一种多用户多输入多输出无线通信系统中的MIMO检测方法，包括步骤：在基站估计所有用户的信道矩阵；计算每个用户的干扰用户矩阵的正交投影矩阵M，并将每个用户的正交投影矩阵M定期发送给每个用户；在用户端接收基站发送的数据，并从接收的数据中得到正交投影矩阵M；利用正交投影矩阵M将期望用户的MIMO检测转化为K元二次凸函数的极小值，其中K表示对期望用户而言，发送天线的个数；利用球检测的方法，得到检测数据的估计。

The online forums have allowed people to be in touch one-to-one, or one-to-many or many-to-many.

由于电子邮件和网上论坛的出现，将使人们以极高的效率进行一对一，一对多和多对多的人际交流。

The using of disinsection light decreased 42.75% larva and 55.66% egg-laying and 7.48% harmful boll, and between the third generation and unlight district had significance of difference.

使用佳多牌频振式杀虫灯可使平均幼虫量降低42.75%，第三代幼虫量与非灯区存在极差异显著性；平均卵量降低55.66%，一代、二代与非灯区卵量均存在极差异显著性，被害铃数减少7.48%。

Correlation coefficients between ammonifying bacteria and urease, polyphenol oxidase, bacteria and phosphatase, total microbe quantity were significant at 0.05 levels, and correlation coefficients between aromatic decomposing bacteria and urease, catalase, phosphatase and total microbe quantity were significant at 0.01 levels.

相关分析表明，氨化细菌与脉酶、多酚氧化酶均呈显著正相关；芳香族分解菌与脉酶、过氧化氢酶呈极显著正相关；细菌、微生物总量分别与磷酸酶呈显著、极显著正相关。

Nebula Series digital inverter welding machine Products include: manual welder, argon arc welding machine DC pulse argon arc welding machine, argon arc spot welding, melting pole gas shielded welding machine, gas shielded MIG pulse welding machine and six functional welding machine more than 30 varieties.

Nebula系列数字化逆变焊机产品有：手工焊机、直流氩弧焊机、脉冲氩弧焊机、氩弧点焊机、熔化极气保焊机、熔化极脉冲气保焊机及六功能焊机等30多个品种。

A very wide wide beautifully decorated hall, usually only be seen in the cathedral painted glass, but here as lighting; The number of home to the rich and others boast crystal chandeliers, here are four in number, and only illumination; Century painter Langfenai value of a 10,000 meter gold paintings Surprisingly, in the dorsal horn can be seen on the walls, although not authentic, but the Duke of your family should be absolutely no fake.

极宽极阔的大厅装饰精美，平时只有在大教堂才能见到的彩绘玻璃，在这里只不过做为采光用；多少富豪之家用以向旁人夸耀的水晶吊灯，在这里就有四盏之多，而且只是照明；世纪大画家米开朗芬奇价值万金的画作，居然在背角的墙壁上可以见到，虽然不知真伪，但公爵府上应该绝对没有赝品。

Based on the calculating principles of the efficiency in electric dust collecting,the thorough reform of the plate and circuit in No.

同时 ，根据多依奇电收尘效率η的计算原理，提出对 3号炉电收尘器的极板和极线进行全面改造，解决因极板、极线变形、清灰装置不良和返灰系统能力不足而影响电收尘运行状况不良的问

Large supply of non-hybrid seeds for vegetables, grains and herbs; make sure they are of the non-GMO, non-hybrid, propagating variety; also be sure to have instructions on how to harvest seeds including information on "moldering" techniques to properly collect seeds from certain plants such as tomatoes; note lastly that due to damp low-sunlight conditions many crops will not grow without growing lights and protection from rain; special research is therefore required on which crops will grow best (for instance, patty rice should grow better than wheat under damp conditions); also be sure to take into account the climactic change which results from the change in latitude due to the pole shift as a location which does not change greatly in latitude will fare better than one which falls in the vicinity of the new poles for instance; the pole shift theory presented on Zeta Talk states that the terrestrial North Pole will move to the middle of the Atlantic off the bulge of Brazil and ultimately one will need to observe the climate and the position of the sun to figure out the new latitude, and either adapt or re-locate as needed

要有许多蔬菜，谷物和草药的的非杂交种子；确信它们是非转基因，非杂交的，是用于繁殖的品种。也得确信具有怎样收获种子的指导书说明，包括&制造&技术方面的信息，以便恰当地收集某些植物的种子，例如西红柿。最后得注意，由于幽暗的低阳光环境，在没有阳光，以及没有其进行雨水防护的情况下庄稼将不会下生长。因而需要进行特别的研究，看看哪种庄稼在这种条件下生长得最好（例如，在昏暗的状况下，水稻应该比小麦生长的更好）。也要确信考虑了极移造成纬度改变，因而导致气候变化。例如，与那些位于新极点附近的地方相比，纬度变化不特别大的地方情况要好得多。齐塔人之声讲述的极移理论表明了地球北极会移动到大西洋中部的巴西隆起处。最后需要观察气候状况以及太阳的位置，以弄清楚新的纬度，根据需要，即可适应当地的条件，又可再次搬迁。

Constantin Brancusi, whose work had a major influence on the minimalism and was much more of a search for the purity of the form but paved the way for abstractions that were to come as named minimalism.

马蒂斯·布朗库西的作品对极简主义产生了深远的影响，更多地追求单纯的形式同时也为几何抽象构成主义铺平了道路，并且最终演变为日后的极简主义。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失