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     The present stripping method of products dyed with acid complex dyes and acid mordant dyes can achieve only 10%~20% colour stripping rate, but the modified stripping method can effectively raise the stripping rate to 40%~50% by adding a powerful coordination complex which replaces the dye that has originally complexed with Cr(Ⅲ) and wool.
     现行的剥色方法对酸性络合染料、酸性媒介染料染制品的剥色率只有10%~20%。 改进现行剥色方法:加入强配位体取代染料-Cr(Ⅲ)-羊毛配位化合物中的染料,可有效地提高剥色率到40%~50%。
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     From Stabillzing the Low Fertility to a Stable population
     从稳定低生育率到稳定人口──新世纪人口态势模拟
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     A practical implementation of very low bitrate video coding system based on H.263 protocol is proposed. The rate control algorithm and search algorithm of motion estimation are discussed in detail. An adaptive rate control method is adopted by this system, which can dynamically control the bitrate to the assigned value.
     提出了基于H.263协议的极低码率视频编码系统的一种具体实现,详细地讨论了码率控制算法和运动估计的搜索算法.其中该系统采用的自适应码率控制方法,能够动态地控制码率到指定的数值.提出的一种局部最优搜索算法,与全局最优搜索相比,大大地减少了搜索时间,而信噪比相差不大.
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     Two-cell-stage embryos had a high rate of development to the blastocyst stage across the embryo concentration range of 1/μl~1/1000*! μl. By contrast,zygotes produced by either ISF or IVF were adversely affected by reduced the embryo concentration over this range(p<0.01),with approximate 82.5% of ISF zygotes developing to blastocysts at highest concentration but only 22.3% at the lowest.
     2 细胞胚胎在所有培养浓度下均达到较高的囊胚发育率 ,而ISF和IVF受精卵在减低培养浓度后发育率显著降低 (p <0 .0 1 ) ,ISF受精卵从高密度 (1 /μl)下约 82 .5 %的发育率到低密度 (1 /1 0 0 0 μl)下 2 2 .3 %的发育率。
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     Conclusion As speech rates increased from normal to 2.0 times normal , there is a significant difference in the changes of WRS in people with SNHL and people with normal hearing (P < 0.01).
     结论:感音神经性听障者在正常语速时的言语辨别率到2.0倍正常语速时的变化较听力正常者的两者变化有明显区别(P<0.01),提示感音神经性听力下降者的时向分辨功能降低。
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     It was less than 25% at the end of observation 36th week.
     聚乳酸-甲壳素的失重率到观察结束时(36周)仍不到25%。
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     Then at the 6 point will lead to a higher pregnancy rate.
     卵裂.
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     Rate of Re-nurture
     反哺
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An optimal diffuser stagger angle should exist at a specified flow rate to make the characteristic of the flow optimized.
      
Inactivation of PPP decreased growth rate to a lesser degree than glycolysis inactivation.
      
This equation relates the nucleation rate to the cluster temperatures.
      
Children of the experimental group, who engaged in physical exercise daily over the first school year, developed so-called bradycardia of training, which enhanced the tendency of the heart rate to decrease with age.
      
Convergence rate to a normal law in an integral metric
      
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Although nitriding provides us with an iron catalyst of good durability and resistance to carbon deposition,it brings at the same time a higher methane form- ation during synthesis,this has hindered its application in industry. Accordingly,factors effecting this main side-reaction were thoroughly studied. They are:reaction temperature and pressure,space velocity,particle size of catalyst, alkaline content in catalyst,method of reduction,degree of nitriding,and aging of catalyst.With the exception of space velocity,all...

Although nitriding provides us with an iron catalyst of good durability and resistance to carbon deposition,it brings at the same time a higher methane form- ation during synthesis,this has hindered its application in industry. Accordingly,factors effecting this main side-reaction were thoroughly studied. They are:reaction temperature and pressure,space velocity,particle size of catalyst, alkaline content in catalyst,method of reduction,degree of nitriding,and aging of catalyst.With the exception of space velocity,all of these independent variables play quite important roles iu effecting the yield of methane.The relative impor- tance of these variables are discussed in detail.Among them,the alkaline content and operation pressure are the most influential.With the increase of the alkaline content from 0.8 to 1.7g K_2O/100g Fe (by impregnation),methane formation can be effectively depressed,for example,at 7 atm.and 15 atm.,CO converted to methane is reduced from 7-9% to 5-6% and from 5-7% to 3% respectively.Further- more,the tendency of increase in methane formation with time can also be checked by addition of alkaline. The product distribution has been correlated with methane formation by sum- marizing data reported in literatures and our own results.Presumably methane is essentially formed on some special locations on the catalyst.However,the operation conditions which favor the formation of light hydrocarbons always enhance the for- mation of methane at the same time,so that there appears some parallelism between them. The mechanism of methane formation and the reason for its steady increase in life tests are also discussed.

在已经解决了氮化熔铁催化剂的活性维持问题及原料气体合理利用的基础上,进一步研究了合成时的一个主要副反应——CH_4的生成——与各项操作变数的关系.确定了反应温度、压力、空间流速、催化剂粒度、催化剂的酸含量、还原方法、氮化度及催化剂的存放时间等独立变数对 CH_4生成率的影响,指出应用浸渍法适当增加催化剂的碱含量并采用较高的反应压力(15气压左右)可以抑制 CH_4的生成率到已转化的 CO 的3%左右.以上措施对和缓 CH_4生成随时间增加的趋势也有良好的影响.综合实验结果,论证了 CH_4生成率与产品轻重间的依附关系,并对 CH_4生成的原因及其随合成时间而逐渐增加的现象作了初步理论上的探讨.

Among 7008 people of Han, Hui, Dongxiang, Tibetan, Yugu, Baoan, Tu. Kazak, Mogo-lian, Salar, ten various nationalities in Gansu and Qinhai were determined by Harris-Kal-mus' modified method of threshold determination. By using No. 3 solution as the borderline of taste-blindness, the result shows (1) The taste-blindness frequency has significant differen-ce .(P< 0.001) among various nationalities. So far the taste-blindness of Baoan nationality is higher than Li nationality. (2) There is no difference of taste-blindness...

Among 7008 people of Han, Hui, Dongxiang, Tibetan, Yugu, Baoan, Tu. Kazak, Mogo-lian, Salar, ten various nationalities in Gansu and Qinhai were determined by Harris-Kal-mus' modified method of threshold determination. By using No. 3 solution as the borderline of taste-blindness, the result shows (1) The taste-blindness frequency has significant differen-ce .(P< 0.001) among various nationalities. So far the taste-blindness of Baoan nationality is higher than Li nationality. (2) There is no difference of taste-blindness between female and male in various nationalities in total, but females' taste threshold is lower than male. (3) PTC taste blindness and taste threshold had nothing to do with anomalous color vision.

本文用Harris和Kalmus改良阈值法对甘肃、青海两省汉、回、东乡、保安、藏、裕固、蒙古、撒拉、土、哈萨克等十个民族共计7008人进行了测定。以三号液为味盲界线。结果表明:l)各民族味盲发生率差异极显著(P<0.001),其中保安族味盲发生率是到目前为止我国大陆各民族中发现的仅高于黎族的民族;味盲总发生率与日本人相近。2)各民族总计中男性与女性味盲百分率无显著差异,但尝味阈值女性显著低于男性。3)色觉异常患者与尝味能力的关系与国内外其它学者结果不同,即味盲率和尝味阈值与色觉异常无关。

Starting from 1987, with the combined methods of Kato-Katz's thick smearand saturated saline floatation, the inhabitants (more than 1000 persons) have been examinedfor the nematode eggs and the egg positive cases were treated by selective chemotherapytwice every year(from May to June and October to November)in Jie Jia Chun, Jiangdu County,Jiangsu Province.The drugs used were albendazole and mebendazole co.single or in combinationin small doses. For cases of mixed infection of cestode or trematode praziquantel...

Starting from 1987, with the combined methods of Kato-Katz's thick smearand saturated saline floatation, the inhabitants (more than 1000 persons) have been examinedfor the nematode eggs and the egg positive cases were treated by selective chemotherapytwice every year(from May to June and October to November)in Jie Jia Chun, Jiangdu County,Jiangsu Province.The drugs used were albendazole and mebendazole co.single or in combinationin small doses. For cases of mixed infection of cestode or trematode praziquantel was used.Up to now, an apparent fruitiul result has been achieved. The total positive rate of intestinalnematodiasis droped from 89.98% to 12.48%, in which Ascaris infection-rate from 52.08%to 7.05%, hookworm 60.15% to 1.52%, whip-worm 64.71% to 5.05%. The egg reductionrates were 92.00%, 90.53%and 91.85% respectively.The polyparasitism has been radicallychanged in these inhabitants. The percentages of 1, 2, or 3 species of parasites in oneperson changed from 31.5%, 42.2% and 26.3% to 90.84%,9.16% and 0% respectively.

1987年开始,在江都县吴堡乡吉家村每年5~6月及10~11月间对全村一千佘居民应用盐浮法和定透法普查肠蠕虫卵.虫卵阳性者进行综合驱虫。驱虫药以阿苯达唑和复方甲苯咪唑为主,单用或小剂量伍用;发现绦虫和吸虫感染者用吡喹酮驱治.四年来取得了显著成效,总感染率从89.98%下降为12.48%.其中蛔虫感染率52.08%降为7.05%,钩虫60.15%降为1.52%,鞭虫64.71%降为5.05%。虫卵减少率到1990年秋分别为92.00%、90.53%及91.85%。居民中的多虫种寄虫现象也发生了根本变化,从1987年春的1、2、3种虫共寄生的构成比为31.5%、42.2%和26.3%到1990年秋分别为90.84%、9.16%和0%。

 
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