间变

The model of heat and mass transfer of a biological sample in cryopreservation was solved by perturbation and integral methods.

用摄动法和积分法求解了生物样品的传热传质模型，在模型简化时比较了积分解和精确解，探讨了低温保存中细胞的损伤机理，对冷却介质温度随时间线性变化时相变界面的移动作了实验研究，用自己设计和制作的实验台架和测试装置测量了相变界面的移动和温场的分布。

In the process of experimental data,it is found that there is non-uniqueness in inversion of creep curve and parameters of rock.

在对实验数据的处理过程中发现岩石蠕变曲线的反演具有蠕变模型的不唯一性和蠕变参数随时间变化的不唯一性。

Gradually, their look changes to bright and deep; the body changes thin and healthy; the action changes to simple and fast; the female changes to slenderer; the man changes to capable; the body is as hiding the detonation strength.

逐渐地，他们的眼神变得明亮而深邃，身体变得瘦削而健美，行动变得简捷而迅速，男子更加精壮，女子更加苗条，体间像隐藏着爆炸般的力量。

The gating of PMT was realized with the method of adding the applied gating and gain-control nano-second pulse, and by changing the electric potential difference between the cathode and the first dynode.

采用给PMT外加选通和变增益纳秒电脉冲的方法，通过改变PMT光阴极与第一打拿极之间电势差，实现PMT选通；借助给PMT最后一个打拿极外加变增益高压脉冲改变PMT最后一个打拿极与前置打拿极间的电势差，实现PMT变增益。

The gating of PMT was realized with the method of adding the applied gating and gain-control nano-second pulse, and by changing the electric potential difference between the cathode and the first dynode. The gain control of PMT was complemented by the aid of adding the high voltage pulse to the last dynode of PMT to change the electric potential difference between the last dynode and front dynode.

采用给PMT外加选通和变增益纳秒电脉冲的方法，通过改变PMT光阴极与第一打拿极之间电势差，实现PMT选通；借助给PMT最后一个打拿极外加变增益高压脉冲改变PMT最后一个打拿极与前置打拿极间的电势差，实现PMT变增益。

Ink, substrate cannot be completely absorbed in a short time, spreading on the surface of the substrate so that accuracy reduced; little ink, line breaking or even not as fresh as ever and so faoyuan; business card printing stress, largening, innovativeink shear stress liquidity with larger, on the one hand will result in printing ink and spreading, on the other hand, the plate cylinder and nano-imprint lithography imprint area between drum widened from bar code section soim.

不求不朱度不小，承印物不克不及在长工夫边合座汲取，会在承印物暗地铺展，使精度回升；不求不朱度小，线条不颓丧甚至呈现不续划等不本质；制卡压辛过不小，油不朱剪切答辛加不小，流动性也随之变不小，一方背会变成油不朱铺展，另一方背，印版滚筒与压印滚筒间的压印区变宽，也会变成条形码条符变宽。

Assuming the angular velocity of the beam is given as a harmonic function of time, the rotating sandwich beam is regarded as a parametrically excited system.

假设电流变夹层梁绕固定轴线做随时间变化的简谐周期运动，将变速度转动梁作为一个时变参激振动系统，分析了不同结构和控制参数对失稳区域的影响。

The differences of amplified DNA segments show ed that the red-fleshed sport was related to changes of some genetic substances .The polymorphic segments could be used to forecast the flesh color of grafted s eedlings from the sport scion.

用4种引物S107、S84、S157、AY17分别对芽变系单株及对照进行RAPD扩增，不同树龄、不同砧木的芽变单株与对照间的特异性片段同引物筛选中所得结果一致，可用所得引物对全红芽变系嫁接株的果肉颜色进行早期预测。

RESULTS: The rates of germinal vesicle breakdown were 98%, 22.2%, 40.1% and the rates of the first polar body (PB1) extrusion were 77.7%, 15.5%, 27.6% for M16, Hx and FA groups, respectively. The rates of GVBD and PB1 were all increased with the addition of FA compared with the Hx groups and comparison was significant (P.05). Hx and FA did not influence chromosome, but FA reversed the size of metaphase spindle elongated by Hx.

结果：M16培养液组、Hx模型组和FA处理组的GVBD率分别为98%、22.2%、40.1%，其PB1排出率分别为77.7%、15.5%、27.6%，各组间的差异均具有统计学意义(P.05)；次黄嘌呤和叶酸对染色体的形态没有影响，而次黄嘌呤使正常的纺锤体变长、变宽、面积变大，FA组较Hx模型组增大的纺锤体有所恢复，并接近于正常水平。

Based on the return map and the principle of closed vectors, a new method is proposed to extract unstable periodic orbits embedded in chaotic attractors. As examples, the UPOs embedded in chaotic attractors of Logistic, Hénon and Lorenz are extracted respectively by this method. And our results of Skewed Hénon map also be compared with Nusse's. These results suggest that this method is valid for unstable periodic orbits from period one to period infinite of arbitrary dimension chaotic system. The dynamic considerations of spiking and UPO coding for individual neuron and neural system under external periodic and chaotic exciting stimulus also be studied in this dissertation. A lot of spiking phenomena, such as synchronization, period, and chaos appear alternatively with the changing of the stimulus frequency. For the small stimulus frequency the neuron could completely convey the periodic signal in synchronous anti-phase into interspike intervals sequences. For the slow time–scale chaotic input, the output two ISI sequences are reciprocally related to input signals, and their oscillation wave shape in time course can be derived from that of the input signals variation, furthermore, the similar input sequence and order of UPOs, distribution of LES and value of KYD remain in attractors reconstructed from ISI sequences.

发现周期信号在单个神经元传递过程中，随着激励频率的改变，神经元输出的峰峰间期interspike interval时间序列呈现出周期、混沌和准周期的交错变化，特别当外加激励信号频率较低时，周期信号可以通过神经元ISI序列以反相同步的周期运动形式传递下去；同时无论是周期还是混沌激励信号，在神经系统中的传递均与其自身强度和神经元之间的耦合强度的大小密切相关；快变时间尺度的混沌激励信号在耦合的神经系统传递过程中，会造成大量基本信息的丢失；而慢变时间尺度的混沌激励信号在神经系统传递中，它的非线性特征信息，如混沌吸引子、不稳定周期轨道、Lyapunov指数谱和分形维数，会通过系统输出的ISI序列部分地重现出来，如与输入慢变时间尺度的混沌激励信号相比，神经系统输出的ISI序列具有：相似几何形状的混沌吸引子、相近的Lyapunov指数谱和分形维数、局部结构相同的不稳定周期轨道的排列方式。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐