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A proper part-time job does not occupy students' too much time.In fact,it is unhealthy for them to spean all of time on their study.As an old saying goes: all work and no play makes Jack a dull boy.

一份适当的业余工作不会占用学生太多的时间，事实上，把全部的时间用到学习上并不健康，正如那句老话：只工作，不玩耍，聪明的孩子会变傻。

The rate of subsidence has been decreasing from area near vertex of delta to the coastal zone and some place is even rising, particularly in the early formed area. What is the different in the coastal is that the rate of subsidence is still high and can sustain a long time. This is because the land subsidence in the delta is mainly caused by the consolidation of sediments if there is no human activity. Especially in the newly formed area, Qingshuigou sub-delta, the rate of subsidence was more than 50 mm/a in the begining and now is still higher than 10 mm/a. When the newly sediments discharged by the Yellow River landed on the subaquatic delta, its load can drive the concolidation of the silt, which is on the surface of the Bohai seafloor. The rate of consolidation of the silt will be decreasing quickly in the first years, but still a long time in the later time with a slow rate.

研究结果表明：现代黄河三角洲在以宁海为顶点的河口扇形区域，近期均经历了不同程度的地表下沉过程，但是随区域地理位置和时间的不同，地表变化空间差异性比较明显；三角洲顶点附近区域的下沉速率自上世纪末开始逐渐减小，后期甚至出现轻微的抬升；滨海沿岸附近地区的地表形变特征相对比较复杂，各期叶瓣相互叠置及其各类沉积物的不均匀分配，使由沉积物自然固结压实引起的地表形变具有显著的空间差异；目前，除清水沟流路叶瓣表现为快速沉降以外，其它滨海沿岸区基本上都表现为微弱的下沉。

Tea polysaccharide can prolong activated partial thromboplastin time of human plasma significantly,but has no effects on prothrombin time and thrombin time.

茶叶多糖能明显延长人体血浆APTT值，而对PT、TT值的影响不显著，表明茶叶多糖主要通过影响内源性凝血系统而发挥抗凝血作用。

A proper part-time job does not occupy students' too much time. In fact, it is unhealthy for th em to spend all of time on their study. As an old saying goes: All work and no play makes Jack a d ull boy.

一份适当的业余工作并不会占用学生太多的时间，事实上，把全部的时间都用到学习上并不健康，正如那句老话：只工作，不玩耍，聪明的孩子会变傻。

Hemostatic mechanism total saponins of Yinfenglun were studied on plasma recalcified time, FT, KFTT and ELT. Result: TSY at different doses could markedly shorten bleeding time, reduce bleeding volume in mice. TSY also could shorten clotting time of mouse, rat and dog. TSY could influence both intrinsic coagulatian system and extrinsic coagulatian system, and had no effect of antifibrinolysis.

结果：荫风轮总苷不同剂量可明显缩短小鼠断尾出血时间，减少出血量，并能缩短小鼠、大鼠、犬凝血时间；可明显缩短家兔血浆复钙时间、凝血酶原时间和白陶土部分凝血活酶时间，但对大鼠优球蛋白溶解时间无明显影响，表明荫风轮总苷既能影响内源性凝血系统，又能影响外源性凝血系统。

Pneumoniae FH strain was cloned and the sequence was analysed by M13 DNA sequencing method. Comparing the PCR product sequcence with MP M-129 strain P1 gene, we found that there are 4 bases different. This may result from the different MP DNA templates. The maximum homology is 98.8%. The result confirmed the fidelity and specificity of the amplified target DNA segment by PCP, and suggested that two categories of MP P1 gene still exist a few differences even in the conservation region. The cloning MP DNA segment was labelled by random hexanucleotide priming, after hybridization, the probe detection was completed using an anti-digoxigenin antibody alkaline phosphatase conjugate, and the substrates 5-bromo-4-chloro-3-indolyl phosphate and nitro blue tetrazolium. This hybridization system is much superior to the radioactive probe hybridization, because it is safe, easy to handle and has no limitation of decay time. The time required for colormetic detection is also much less than the corresponding autoradiographic exposure time needed to achieve similar detection limits with 32P-labelled probes. The Dig-probes could be used repeatedly, and this made them not only much convenient to use, but also lower the cost, and worthwhile to be used popularly.

将PCR产物进行重组，并将阳性重组质粒，应用M13测序系统对产物进行DNA序列分析，并与MPM-129株P1基因核苷酸进行同源性比较，发现有4个位置的碱基发生了变化，其同源性为98.8％，证实了PCR所扩增DNA片段的准确性和特异性，同时也证实了不同MP组型的P1基因即使在保守区也存在着一定的差异，将克隆的目的DNA片段用异羟基洋地黄毒苷配基用随机引物法标记制备MP DNA探针，杂交后用碱性磷酸酶标记的抗Dig多克隆抗体与杂交体反应，再用BCIP和NBT呈色，制备MP DNA探针，鉴定所扩增片段的特异性，与同位素探针比较，Dig探针不受半衰期限制，可反复使用，而且价格低廉，值得推广使用。

When the aphids were feeding on Ww2730 seedlings, the time to 1st probing was delayed compared to those on Xiaoyan22 and Batis, searching was interrupted before 1st probing, and 1st probing was shorter than that on Xiaoyan22 and Batis significantly. Duration of pd Ⅱ-1 on Ww2730 and Xiaoyan22 was much longer than that on Batis. Duration of pd in C waveforms on Ww2730 was longer than that on Xiaoyan22 and Batis remarkedly. Times and duration of G waveform on Ww2730 were more and longer. Times of spot G waveform on Batis were more than on Ww2730 significantly, but the duration was shorter than those on Xiaoyan22 and Ww2730. Total time of E1 waveform, max longest duration of E1 fractions and mean duration time of E1 fractions following E2 wavefrom on Xiaoyan22 and Batis were all longer than on Ww2730 statistically. There were no differenences among mean durations of 1st E1 wavefrom on three varieties, but mean durations of other E1 waveforms on Ww2730 and Xiaoyan22 were shorter than those on Batis. The other waveform parameters, include times and durations of F and E2 were all not different on three wheat varieties.It is suggested that the resistance mechanism of wheat variety Ww2730 to S.

麦长管蚜在品种Ww2730上口针开始接触叶面时间显著晚于小偃22和Batis，第1次持续刺探前的刺探次数显著多于小偃22和Batis，开始刺入叶面后第1次刺探的持续时间极显著短于小偃22和Batis；在Ww2730和小偃22上的PdⅡ-1的平均时间显著长于Batis；Ww2730上C波阶段2个Pd波间的间隔平均时间显著大于另外2个品种；在Ww2730木质部取食的次数和时间显著大于其它2个品种；Batis上的点G波的次数极显著地高于Ww2730，而平均持续时间极显著短于小偃22和Ww2730；在Batis和小偃22上E1波的总时间，E1波的最大值、跟随E2波的E1波的平均时间均显著大于Ww2730；3个品种间第1次E1波持续的时间差异不显著，但Ww2730和小偃22上其它E1波持续的时间极显著少于Batis；3个品种上其它波形参数，包括F波的次数和总时间、E2波的次数和总时间没有差异。

During the whole course of the dynamitic development and evolvement of redox zones, concentrations of TOC, sulfide, NH+4-N, HCO-3, CO2 and Fe2+ increased with time and decreased with distance; concentrations of NO-3 and DO decreased with time and increased with distance; SO2-4 concentration decreased first and then increased over time; but decreased with distance.

在氧化还原带的整个演化过程中，各带中TOC、硫化物、NH+4-N、HCO-3、CO2和Fe2+等物质的浓度随时间的推移而升高，随离污染源距离的增加而降低；NO-3和DO等物质的浓度随时间的推移而减小，随离污染源距离的增加而升高；SO2-4的浓度则随时间的推移先减小而后增加，随离污染源距离的增加而降低。

By time-varying filtering, we realize the signal selectivity and interference suppression, especially for the signals with time-varying power spectrum. It is shown herein that conventional eigenstructure based methods are lower dimensional special case of the time-frequency subspace fitting method. The closed-form array response estimation algorithms for blind source separation in wireless communication is also developed in the dissertation by exploiting the data structure of second-order statistics of the array output in the presence of multipath. The proposed method achieves array response estimation with little constraint on signal property and propagation environment such as scatters or angular spread. Moreover, the array utilized here can be of arbitrary geometry and even uncalibrated. Since the closed-form solution is obtained, no misconvergency may occur and large amount of computation can be saved. The equivalent feed model and corresponding optimization designation are proposed to realize the downlink multi-user selective transmission. By coherent and non-coherent superposition of the electromagnetical field, multiple beams can be formed using a single array, so that each co-channel user signal is transmitted in each beam and will not interfered with each other. The proposed system scheme implements the digital beamforming and the channel allocation in the base band, therefore is suitable for the utilization of the radio software technology. The feasibility and effectiveness of the proposed model are proved by the RF experiment.

在窄带条件下，GSC－SSF方法还可以提高阵列的虚拟孔径，从而提高估计的性能；可以证明，Cyclic DOA 和SC-SSF方法可看作该方法的特例或近似； 3、提出了二维GSC－SSF方法和宽带谱相关DOA矩阵方法，利用信号的循环平稳特性解决了宽带条件下二维 DOA 估计问题，并具有阵元数少、计算量较小的特点； 4、提出了时频子空间拟合和宽带时频DOA估计算法，将联合时频分析的理论和方法引入到阵列信号的空间谱估计研究中，利用时变滤波实现信号选择性测向和干扰抑制，特别适合于谱时变信号；可以证明传统特征结构法可看作是时频子空间拟合方法的特例； 5、提出了多用户环境下阵列响应的估计方法——CARE方法，该方法对信号结构和传播参数（主要是散射源分布与角度散布）的约束较少，适用于各种几何结构的阵列甚至未校准的阵列，能够直接得到阵列响应的闭式解，因此计算量小、稳健性好，不存在收敛问题； 6、提出了针对多用户下行选择性发送的阵列等效激励模型、优化设计方法及其系统实现方案，通过空间场的相干叠加与非相干叠加使得单一阵列能够形成多个波束，并保证各波束内的用户信号各不相同且相互干扰最小；其系统方案具有在基带实现数字波束成形、信道分配并便于软件无线电实现的特点，其有效性已得到外场实测数据的证实。

Hemadynamics changing during the induction and maintenance phase, doses of propofol and atracurium, spontaneous breath recovery time, awake time, time of endotracheal tube extubation and side-effect were investigated and compared. Results There were no significant differences in doses of propofol and atracurium between two groups.

选择ASA 分级Ⅰ-Ⅱ级择期在颈丛复合全身麻醉下行甲状腺次全切除术病人40例，随机分为瑞芬太尼组及芬太尼组，R组采用瑞芬太尼和丙泊酚诱导和维持麻醉，F组采用芬太尼和丙泊酚诱导和维持麻醉，观察并比较两组病人麻醉诱导及维持期血流动力学的变化、术中丙泊酚和阿曲库铵的用量、术毕停药后病人自主呼吸恢复时间、清醒时间、拔管时间以及苏醒期不良反应等。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。