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positive errors
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  误差正
     Our simulation results show that for high positive errors correlation cases, these new tests have lower type-1 error and large power than modified F-test.
     模拟结果表明,当误差正相关程度较高时,两种新检验在具有较小的第一类错误概率的同时,具有较大的功效。
短句来源
     The simulation results show that for high positive errors correlation cases,these two approximate tests statistics have lower type-1 error and larger power.
     模拟结果显示,当误差正相关程度较高时,两种近似检验在具有较小的第一类错误的同时,具有较大的功效.
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  “positive errors”译为未确定词的双语例句
     As a basic theory in forest mensuration,the stand volume error from the diameter rounding was studied in this paper,and profound new ideas as following,①comparing the stand survey factors from the diameter rounding to those from the diameter without rounding,there is no error in the arithmetic average diameter in general,but positive errors in the stand square average diameter and stand volume,and the theoretical error value of stand volume is P V=( a 2/12d 2)×100;
     该文研究了林木直径整化与材积理论误差 ,结果表明 :①采用整化径阶计算的与用未整化的实测胸径值计算的林分调查因子相比 ,林分算术平均直径一般无误差 ,而林分平方平均直径和林分材积均产生正误差 ,直径整化后材积偏差的理论值应该为PV =(a2 12d2 )× 10 0 ;
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     Conclusions The criterion for diagnosis of thyroid size with B utrasound without considering the development of children's body false positive errors in which the normal children are diagnosed as of thyroid goiter.
     结论 就儿童发育水平与实测值比较证明现行判断肿大的标准严重脱离实际 ,造成假阳性判断错误甚多
短句来源
     By analysis,we know that isothermal characteristics and flow resistance diversely affect the errors,which isothermal characteristics lead to positive errors while flow resistance leads to negative errors.
     经分析可知容器的温度特性和流阻特性对测量元件流量特性时的误差有着不同的影响,温度偏差引起流量测量的正偏差,而流阻则引起流量测量的负偏差,存在一个最佳填充密度。
短句来源
     A similar Hamming distance method is adopted in the detection,which is effective in reducing false positive errors and false negative errors; the error rate is less than 10%.
     提出的类似Hamming距离的检测算法,使误报率低于10%.
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  相似匹配句对
     d. errors.
     d误差。
短句来源
     errors.
     d. 随机误差。
短句来源
     Errors appearing in learning process are of positive significance.
     学习中出现的错误具有积极意义。
短句来源
     weak positive;
     弱阳性(+),积分1一4分;
短句来源
     troponin I positive;
     肌钙蛋白阳性。
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  positive errors
Legislatures use these terms of art as a matter of policy to control the risk of false-positive errors.
      
We discuss two major reviews of the accuracy of dichotomous (yes/no) violence predictions (Monahan, 1981; Otto, 1992), which reported rates offalse positive errors that were calculated using conceptually and mathematically dissimilar methods.
      
The concern that the South Oaks Gambling Screen (SOGS) and other screening tests have a relatively high rate of false positive errors which results in overestimation of the true prevalence in general population studies is shown to be unfounded.
      
In the paper, a new hybrid genetic algorithm solving the DNA sequencing problem with negative and positive errors is presented.
      
In the paper, two evolutionary approaches to the general DNA sequencing problem, assuming both negative and positive errors in the spectrum, are compared.
      
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The effects of copper and zinc ionsupon the precipitation of barium sul-phate have been noted for a long time.However,the results published wereeither not systematic(3,4b,5,6)or obtained under conditions apart fromusual analytical practice(7,8).Thus,it seems necessary to investigate thissubject in more detail by the usual methods of determination.The presentcommunication reports(a)the effect of various amounts of cupric and zincions and(b)the influence of different acidities during precipitation in thepresence...

The effects of copper and zinc ionsupon the precipitation of barium sul-phate have been noted for a long time.However,the results published wereeither not systematic(3,4b,5,6)or obtained under conditions apart fromusual analytical practice(7,8).Thus,it seems necessary to investigate thissubject in more detail by the usual methods of determination.The presentcommunication reports(a)the effect of various amounts of cupric and zincions and(b)the influence of different acidities during precipitation in thepresence and absence of zinc ions.It is found that the interference of copper in the determination of sulphuras barium sulphate up to a ratio of 20:1 for Cu:S is negligible.The deviationsof the results obtained from theoretical values are all within ±2‰(see Table1),and do not show any regularity with the amount of copper added.The presence of zinc ions alone gives satisfactory results(slightly lowerthan theoretical values).As the amount of zinc ions in solution increases,thedeviations become somewhat wider(Table 2).The low results are presumedto be due to(1)the formation of soluble zinc-sulphate complex,which holdsa part of sulphate in solution,and/or(2)diverse ion effect.In the presenceof zinc ions,introducing hydrochloric acid up to 0.1 N before precipitationcauses essentially the same errors as if hydrochloric acid were absent(cf.Tables2 and 3),while at and beyond 0.2 N positive errors are obtained.A spectrographic examination of the precipitates reveals that zinc doescoprecipitate with barium sulphate,though only to a slight extent.The amountof zinc coprecipitated decreases with the increase of the acidity of the solutionfrom which the precipitate is thrown down.

本文报告铜及锌离子对于硫酸钡定硫的影响,找出了铜的影响几近于零,锌的影响亦微。锌离子能与硫酸钡共同沉淀。

4-Amino-4'-chlorodiphenyl, a related compound of benzidine, is used as areagent for sulfate determination, hence it is interesting to study whetherthis reagent can be used as a precipitant in tungsten (VI) and molybdenum(VI) determinations. It is found in the present investigation that the reagentmay be used as a precipitant for tungsten (VI) and is promising for moly-bdenum (VI) determinations. For tungsten (VI) determination, the recommended conditions are: (a) thepH of solution should be adjusted to 1.5--3.1,...

4-Amino-4'-chlorodiphenyl, a related compound of benzidine, is used as areagent for sulfate determination, hence it is interesting to study whetherthis reagent can be used as a precipitant in tungsten (VI) and molybdenum(VI) determinations. It is found in the present investigation that the reagentmay be used as a precipitant for tungsten (VI) and is promising for moly-bdenum (VI) determinations. For tungsten (VI) determination, the recommended conditions are: (a) thepH of solution should be adjusted to 1.5--3.1, so that errors will be less thanfive parts per thousand; (b) the precipitation should be taken place at roomtemperature, heated to nearly boiling and then digested on water bath for twohours in order to coagulate the precipitate; (c) the concentration of reagentafter precipitation should be about 0.15% (calculated on the basis that one ionof tungsten (VI) takes two moles of the precipitant); (d) the amounts of tung-sten that can be determined with this method are 4--75 milligrams (the extremesexamined); (e) the precipitate can not be dried to constant weight and theoptimum ignition temperature is between 625--850°, as found from the ther-molysis curve (see Fig. 1 in the Chinese text); and (f) the effect of severalalkali salts are studied, among them ammonium chloride (2 gm) exerts noeffect, sodium and potassium chlorides (1.0 and 2.5 gm respectively) exert aslight positive errors probably due to adsorption of the alkalies. The effect ofsodium nitrate (2.5 gm) or ammonium acetate (2.0 gm) is not serious. Aprocedure for analysis is given. For molybdenum (VI) determination, it is found that the precipitation of4-amino-4'-chlorodiphenyl molybdate requires a pH between 1.8--2.8, with errorsless than one percent. Though the precipitate is more soluble than the cor-responding tungstate, its use for determining molybdenum (VI) is promising.

4-氨基-4′-氯联苯可以用作钨(Ⅵ)的沉淀剂。适宜於沉淀的溶液酸度为pH 1.5—3.1。应在室温沉淀,继在近沸温度静置。沉淀剂用量应为理论值1.25倍。测定过4—75毫克三氧化钨均能得满意的结果。根据热解曲线沉淀只能灼烧为三氧化钨而称重。灼炼温度为625--850°。文中尚报告数称碱金属盐的影响。 4-氨基-4′-氯联苯之钼酸盐在pH1.8--2.8时亦能定量沉淀,其溶解度较相应的钨酸盐为高。但有希望用作钼(Ⅵ)之沉淀剂。

Ball's formula method has been modified. The modification was completed through correcting the error in Ball's formula. The accuracy of modified Ball's formula method has been examined.In contrast the accuracy of original Ball's formula method, and the other methods used frequently in the world including Stumbo's method, Hayakawa's method, computer method etc have been examined. It has been found that the accuracy of modified Ball's formula method increased by 2 to 5 times in comparison with original Ball's...

Ball's formula method has been modified. The modification was completed through correcting the error in Ball's formula. The accuracy of modified Ball's formula method has been examined.In contrast the accuracy of original Ball's formula method, and the other methods used frequently in the world including Stumbo's method, Hayakawa's method, computer method etc have been examined. It has been found that the accuracy of modified Ball's formula method increased by 2 to 5 times in comparison with original Ball's formula method, Stumbo's method had serious positive error. Hayakawa's method had better accuracy. In all of methods, computer method had the best accuracy.

本文对鲍尔公式法作了改进。改进是通过更正鲍尔公式中的错误实现的,改进后的鲍尔公式法的精确度作了检验。作为对照,原鲍尔公式法,以及国际上常用的其他一些方法包括Stumbo方法,Hayakawa方法,计算机方法等的精确度也作了检验。发现改进后的鲍尔公式法的精确度较原鲍尔公式法的精确度提高了二倍至五倍。Stumbo方法有较大的正误差。Hayakawa方法有较好的精确度,在所有的方法中,计算机方法有最好的精确度。

 
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