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     With n(potassium dichromate)∶n(sulfuric acid)∶n(1,2 propanediol)=1 0∶4 0∶(1 5-2 5),1,2 propylene glycol was oxidized with acidic aqueous potassium dichromate solution at 60-70 ℃ by bubbling nitrogen and adding the materials for 1 5 h while the solution was distilled.
     n(重铬酸钾 )∶n(硫酸 )∶n(1,2 丙二醇 ) =1 0∶4 0∶(1 5~ 2 5 ) ,以水为溶剂 ,在 6 0~ 70℃间歇通入氮气 1 5h ,边加原料边蒸馏 ,制得产率为5 0 %的丙酮醛。
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     The CSF levels of NSE were positively correlated with CSF levels of TNF-α(r= 0.512,severe group;r =0.454,mild group Pa<0.01).
     CSF中NSE、TNF-α水平呈高度正相关[r(重)=0.512,r(轻)=0.454 Pa<0.01]。
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     The Thal group were divided into 6 subgroups (520 cases in the minor type α1,Thal group, 550 cases in the minor β1,Thal group, 180 cases in the Hb H group, 100 cases in the fatal type β1,Thal group,210 cases with normal Hb value in the α1,Thal group A▲, and 320 cases with normal Hb value in the β1,Thal group B▲).
     Thal组共1880例,分为6个组:轻型α-Thal组520例,轻型β-Thal组550例,血红蛋白H病(HbH)组180例,重型β-Thal组(重B组)100例,不贫血的α-Thal组(A▲组)210例,不贫血β-Thal组(B▲组)320例。
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     Average output pulse energies of 56.4mJ of the OPO and 22.8mJ of the idler at 3097nm were observed with the pulse width of 8ns. The conversion efficiency from 1060nm pumping laser to the OPO output (the signal and idler) was 46% at pulse repetition rates up to 10Hz.
     得到OPO输出单脉冲平均能量56.4mJ,闲频光(3097nm)脉冲平均能量22.8mJ,脉宽8ns,抽运光转换成参量光输出效率46%(重频1Hz~10Hz)。
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     The serum NSE(r=0.579,severe group;r=0.55,mild group Pa<0.01) and TNF-α(r=0.525,severe group;r=0.488,mild group Pa<0.01) were positively correlated with those of CSF,respectively.
     NSE血清和CSF水平有相关性[r(重)=0.579,r(轻)=0.55Pa<0.01]; TNF-α水平也有相关性[r(重)=0.525,r(轻)=0.488 Pa<0.01]。
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     CHAPTER 5 MARINE SEDIMENTATION Section 4 Heavy Mineral
     矿物
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     fresh weight in average.
     鲜
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     (3)weight of crucibles;
     (3)坩埚的恒;
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On the uniform consistency of the kaplan-meier estimator under heavy censoring
      
Some equivalent conditions on the classes of lighted-tailed and heavily heavy-tailed and lightly heavy-tailed d.
      
The BET surface area was 298 m2·g-1 and the contents of heavy metals in the leachate didn't exceed the contents limit.
      
A wide class of heavy-tailed distributions and its applications
      
By the asymptotic behavior of re(x) we give a criterion to identify F(x) to be heavy-tailed or light-tailed.
      
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The potential between two nucleons suggested by K. C. Wang, viz.

本篇应用王淦昌所建议之两个核子间之相互位能 即 V=V(r)=- Ae~(klr) 在r≥α时; 及V=V(α) 在r<α时。以求下列数点:(1)子在正常情形时之波函数,(2)中子与质子间之扩散断面值,及(3)子被γ射线击破之断面值。本篇所计算得之各断面值之结果与实验所得者,颇相近似。

The problem of large deflection of a clamped circular plate under uniform pressure is studied by the method of successive approximation in terms of the parameter representing the ratio of the center deflection to the thickness. The tedious numerical computations, involved in Way's power series solution are thus avoided. The yielding condition at the edge checks very well with the experimental results given by McPherson, Ramberg and Levy. The method may be easily extended to any other boundary conditions and...

The problem of large deflection of a clamped circular plate under uniform pressure is studied by the method of successive approximation in terms of the parameter representing the ratio of the center deflection to the thickness. The tedious numerical computations, involved in Way's power series solution are thus avoided. The yielding condition at the edge checks very well with the experimental results given by McPherson, Ramberg and Levy. The method may be easily extended to any other boundary conditions and loading details.

本文所研究者,为一周缘夹紧之圆板,在匀布之侧向压下所生之巨大挠曲。本文用圆板中点之挠曲距离与板厚之比率为参数,逐步求得本题之近似解答,藉此避免前人Way氏之幂级数法中繁之数字计算。圆板周缘呈现委屈现象之条件,亦可求得,其结果与McPherson,Ramberg及Levy诸氏之实验,完全吻合。本法亦可适用于一圆板在其它周缘条件及其它荷情况下之诸问题。

p-Nitro-acetophenone was prepared by diazotizing p-amino-acetophenone in fluoroboric acid solution and replacing the diazonium fluoroborate group by the nitro group in presence of finely divided copper as catalyst. Yield 55-60%; m.p. 76-78℃. Recrystallization from alcohol gave a product of m.p. 80℃.

從乙醯苯胺、醋酸酐與氯化鋅作用,經水解後製得對胺基苯乙酮。在氟硼酸水溶液中氮化之,再在亞硝酸鈉的水溶液中以銅粉為觸媒,將此氮團置換成爲硝基,即得對硝基苯乙酮。

 
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