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     Based on the literature([1]),we apply 1+12~2+13~2+…+=π~26 to study the estimation of any subdivide numbers of a positive integer where N and the subdivide numbers allow to be disorder and repeated. So,we obtain a better estimation of upper bound than those in the existing literature is obeained.
     在文献[1]的基础上,应用1+122+123+…+=π26来讨论正整数N的无序允许重复的任意剖分数的估计,从而给出了正整数无序允许重复剖分数的一个较优的上界估计式.
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     UART allow to full-duplex communication at serial link circuit.
     UART允许在串行链路上进行全双工的通信。
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     Third, strength allow to arise the dangerous area of less scope ( is smaller than 20°) when checking nucleus.
     (3)强度校核时允许出现较小范围的危险区域(小于20°)。
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     Because of the modulation technology, it makes Sigma-Delta ADC allow to use one bit comparator, and it has simplified the circuit of the analog part greatly.
     这种调制技术使得在Sigma-Delta ADC中允许使用一位比较器,这样大大简化了模拟部分电路。
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     The 802.11b standard supports vivid and diverse modes of network, according to different modulating, it can deliver by 11 Mbps, 5.5 Mbps, 2 Mbps, 1 Mbps. etc. , and allow to adjust velocities between distance and baud rate according to the environment condition, to keep the best correspondence performance.
     802.11b标准支持灵活多样的组网方式,根据不同的调制方式,可以实现11Mbps、5.5Mbps、2Mbps、1Mbps等多种速率传输,并允许根据环境状况在通信距离与传输速率间进行自动调整,以保持最佳的通信状态。
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     Based on the literature([1]),we apply 1+12~2+13~2+…+=π~26 to study the estimation of any subdivide numbers of a positive integer where N and the subdivide numbers allow to be disorder and repeated. So,we obtain a better estimation of upper bound than those in the existing literature is obeained.
     在文献[1]的基础上,应用1+122+123+…+=π26来讨论正整数N的无序允许重复的任意剖分数的估计,从而给出了正整数无序允许重复剖分数的一个较优的上界估计式.
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     UART allow to full-duplex communication at serial link circuit.
     UART允许在串行链路上进行全双工的通信。
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     Third, strength allow to arise the dangerous area of less scope ( is smaller than 20°) when checking nucleus.
     (3)强度校核时允许出现较小范围的危险区域(小于20°)。
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     Because of the modulation technology, it makes Sigma-Delta ADC allow to use one bit comparator, and it has simplified the circuit of the analog part greatly.
     这种调制技术使得在Sigma-Delta ADC中允许使用一位比较器,这样大大简化了模拟部分电路。
短句来源
     The 802.11b standard supports vivid and diverse modes of network, according to different modulating, it can deliver by 11 Mbps, 5.5 Mbps, 2 Mbps, 1 Mbps. etc. , and allow to adjust velocities between distance and baud rate according to the environment condition, to keep the best correspondence performance.
     802.11b标准支持灵活多样的组网方式,根据不同的调制方式,可以实现11Mbps、5.5Mbps、2Mbps、1Mbps等多种速率传输,并允许根据环境状况在通信距离与传输速率间进行自动调整,以保持最佳的通信状态。
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     Eliminating this curve will allow to shorten this segment of vas deferens for vasovasostomy by(6.1)~(12.9)((9.31)±(1.30)) cm.
     使输精管从外环穿出,消除该弯曲,可缩短输精管6.1~12.9(9.31±1.30)cm。
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     The treatmentintensity should allow to reduce LDL-C level by 30% ~ 40% for high risk and moderate high risk individuals.
     高危或中度高危者,治疗的强度应足以使LDL-C水平至少降低30%~40%。
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     With a coefficient of light extinction of 0.3-0.4, which allow to contain an optimal LAI as high as 8-10 during middle growing period;
     齐穗期基部透光率 5 %左右 ,消光系数 0 .3~ 0 .4 ,可容纳的最大LAI8~ 10 ;
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     Nowadays, a large change take place in the big circulation of international economy and the international market, which leads to three kinds of strength not allow to be neglected occur in enterprises -- the customer, the competition and the change, which also be called 3C.
     当今国际经济大循环和世界市场发生了巨大的变化,出现了三股不容忽视的力量,即顾客领导(Customer)、竞争激烈(Competition)、变化快速(Change),所以又称之为3C。
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     The Design of Slider Crank Mechanism on the Flat with Allow to Use Transmission Angle [γ] and Most Prominent Rapid Return Speciality [K_(max)]
     具有许用传动角[γ]和最显著急回特性K_(max)的平面曲柄滑块机构设计
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The mathematical models are offered which allow to a certain extent to explain originating phenomena and also to use and/or parry their negative aftereffects.
      
We also show how the non-stationary solutions can be used to obtain known and new results which allow to predict the behaviour of the EPS queue and to yield additional insights into its new unexpected properties.
      
Three-layer models are designed for both types of films that allow to calculate electrostatic disjoining pressure Πel.
      
Our results also allow to estimate the maximum existence interval for a solution.
      
Our results, which are obtained in terms of algorithmic complexity, allow to discuss heuristically the properties of sufficiently complex security portfolios in the conditions of daily changing return rates.
      
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The pine caterpiller,Dendrolimus punctatus Walker, has the habit of leav-ing the crown part of a tree and hibernating under the loose bark of thetrunk. The present paper reports the successful control of this pest by treatinga part of the trunk with a DDT suspension. All experiments were carried outat Nanking, 1947-48. When solutions and water suspension containing 5% DDT, 1%γ 666,or 5% 1068 were applied with a brush to the trunk for a width of one footand over-wintering larvae were allowed to crawl over...

The pine caterpiller,Dendrolimus punctatus Walker, has the habit of leav-ing the crown part of a tree and hibernating under the loose bark of thetrunk. The present paper reports the successful control of this pest by treatinga part of the trunk with a DDT suspension. All experiments were carried outat Nanking, 1947-48. When solutions and water suspension containing 5% DDT, 1%γ 666,or 5% 1068 were applied with a brush to the trunk for a width of one footand over-wintering larvae were allowed to crawl over the treated area, all theinsecticides tested were found to be effective when freshly applied. After oneweek, how-ever, only preparations containing DDT remained effective. DDTwater suspension was markedly better than DDT in kerosene, soybean oil, oracetone. Trees treated with a 5% DDT water suspension were still very toxic tothe caterpillars at the end of six weeks. The number of caterpillars crawling over a DDT-treated area would notinfluence the toxicity of the DDT film under practical field conditions. In oneexperiment all area of twenty inches square, treated with a 5% DDT suspension,still showed high toxicity to the caterpillars after 1,800 larvae had crawled overthe area in a period of nine days. Caterpillars were found to be more resistant to DDT in summer than inwinter. By increasing either the concentration of DDT to 10-15% or thewidth of the treated area to 2-3 feet, the "trunk treatment method" could beused as well in summer, if the caterpillars were beaten down to the grounedafter the trees had been treated with DDT. Under the field conditions in Nanking, 1947-48, the pine caterpilIars beganto leave the crown part of the trees and seek hibenation quarters in November.They became active again early in March, hence tree should he treated withDDT not later than the dates mentioned above. A total of 157,658 trees were treated with DDT on the Purple Mountain,Nanking, 1948. Examinations showed that larval population decreased 90-99%in the treated area, while in the check area an increase in population of16-350% had been observed.

本文研究在松树干上涂刷有持久性的药剂以防治越冬松毛虫的可能性。1947—48年在南京试验及实施防治的结果简述如下: (一)在实验室内使越冬松毛虫爬行越过涂有一市尺宽各种药液的松树干的结果,证明5% DDT,1%γ666,与5% 1068的悬液或溶液。在涂药的当天均 有相当高的杀虫效力,惟一周以后γ666与1068完全失效,仅DDT仍保持强大的毒力。DDT水悬液显著较DDT火油、大豆油或丙酮溶液为佳。涂有5%DDT悬液的松树杆曝露田间六星期后,杀死松毛虫能力仍达100%。 (二)据试验的结果,自制的可湿性DDT,内含DDT50%,稀释剂45%,与肥皂5%,尚适宜于防治松毛虫之用。 (三)松毛虫爬行的次数对涂药面积上DDT毒力的影响极微,在二十平方市寸涂有5% DDT悬液的小面积上,9天之内经过1800头松毛虫爬行后,毒力仍未减小,死亡率尚在90%以上。 (四)夏季松毛虫较越冬松毛虫不易杀死。夏季松毛虫抵抗DDT的能力随龄期而增强。试验中显示如增加药液浓度至含DDT 10—15%,或增加涂药的宽度至2—3市尺,夏季幼虫亦能中毒死亡。故树干涂药法亦可应用在夏季防治上,惟必须在涂药后将松毛虫从树上击落,使其在爬返树冠...

本文研究在松树干上涂刷有持久性的药剂以防治越冬松毛虫的可能性。1947—48年在南京试验及实施防治的结果简述如下: (一)在实验室内使越冬松毛虫爬行越过涂有一市尺宽各种药液的松树干的结果,证明5% DDT,1%γ666,与5% 1068的悬液或溶液。在涂药的当天均 有相当高的杀虫效力,惟一周以后γ666与1068完全失效,仅DDT仍保持强大的毒力。DDT水悬液显著较DDT火油、大豆油或丙酮溶液为佳。涂有5%DDT悬液的松树杆曝露田间六星期后,杀死松毛虫能力仍达100%。 (二)据试验的结果,自制的可湿性DDT,内含DDT50%,稀释剂45%,与肥皂5%,尚适宜于防治松毛虫之用。 (三)松毛虫爬行的次数对涂药面积上DDT毒力的影响极微,在二十平方市寸涂有5% DDT悬液的小面积上,9天之内经过1800头松毛虫爬行后,毒力仍未减小,死亡率尚在90%以上。 (四)夏季松毛虫较越冬松毛虫不易杀死。夏季松毛虫抵抗DDT的能力随龄期而增强。试验中显示如增加药液浓度至含DDT 10—15%,或增加涂药的宽度至2—3市尺,夏季幼虫亦能中毒死亡。故树干涂药法亦可应用在夏季防治上,惟必须在涂药后将松毛虫从树上击落,使其在爬返树冠时接触药剂而死亡。 (五)自然情形下,南京松毛虫在十一月即开始下树越冬,至来年三月初开始活动上树,故采用树干涂药法防治下?

In this paper a method for computing the influence lines in open rigid frames is presented. This method is based on the Müller-Breslau's principle that every deflection diagram is an influence line. If any section of a given rigid frame, at which the influence llne of any stress function——such as reaction, shear, bending moment and torsion——is desired, is allowed to produce freely a corresponding unit deformation, the deflection diagram of this frame will be the same as the influence of that stress function.The...

In this paper a method for computing the influence lines in open rigid frames is presented. This method is based on the Müller-Breslau's principle that every deflection diagram is an influence line. If any section of a given rigid frame, at which the influence llne of any stress function——such as reaction, shear, bending moment and torsion——is desired, is allowed to produce freely a corresponding unit deformation, the deflection diagram of this frame will be the same as the influence of that stress function.The fundamental idea of this method is that the angle-changes at ends of bars due to unit deformation can be determined by propagating joint rotations and that the resulting deflection diagram which is the same as the influence line of the corresponding stress function may be determined by method of conjugate beam.Typical numerical examples are worked out to show the application of this method.

本文提供一種求敞口剛架影響線的方法。依據米勒白斯老(Müller-Bres1au)氏“變位線即影響線”的原理,令剛架中某點有與其應力函數相应的單位形变,則剛架因此所產生的變位曲線即為該應力函數的影響線。本文所叙述的方法,係利用角變傳播原理,求出各桿兩端由於上项單位形變所引起的角变,再根據此項角變求出各桿的變位曲線,亦即該應力函數的影響線。举有實例以示此法之應用。

5,5-Dimethylhydantoin was prepared and allowed to react with an excess of acrylonitrile in dioxane in the presence of potassium hydroxideas a catalyst, giving 1,3-di-(β-cyanoethyl)-5,5- dimethylhydantoin, which on hydrolysis in hydrcchloric acid was converted to 1,3-di-(β-carboxy- ethyl)-5-dimethylhydantoin. Reactions of acrylonitrile with compounds structurally related to hydantoin, such as cyclic ureides, thiohydantoins and rhodanines, are now under investigation.

5,5-二甲基乙內醯脲和過量的丙烯腈在1,4-二氧六圜內及苛性鉀的催化作用下,發生反應,產生1,3-二(β-腈乙基)-5,5-二甲基乙內醯脲。後者經水解後,產生1,3-(β-羧乙基)-5,5-二甲基乙內醯脲。

 
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