用马丁－侯方程理论式计算流体P－V－T性质

本文导出了马丁－侯状态方程理论式常数的计算公式，并用理论式计算了ＣＯ_２的等温曲线和十种非极性和极性物质的汽液饱和曲线，其计算精确度令人满意。     

乙醇－水－甲醇精馏过程中温度和组分浓度沿塔高的分布

本文用全回流筛板精馏塔测定了四个压力下的乙醇－水和乙醇－水－甲醇两个物系沿塔高温度与浓度的分布。用两元实测结果计算了不同压力下各板的默弗里板效，并以ＵＮＩＦＡＣ活度系数方程和维里状态方程为基础的热力学模型建立了精馏计算模型。用该模型对三元体系进行了计算，与实测结果符合良好。     

WH－800离心机推力计算及分析

通过文献［１］所述公式对ＷＨ－８００离心机在运行过程中所需要的必要推力、无用推力等方面进行分析计算，并提出为扩大其在制盐行业中的应用，提高其利用率而采取的措施。     

WH－800离心机推力计算及分析

通过文献［１］所述公式对ＷＨ－８００离心机在运行过程中所需要的必要推力、无用推力等方面进行分析计算，并提出为扩大其在制盐行业中的应用，提高其利用率而采取的措施。     

用BENDER状态方程计算N2—Ar—O2体系的热力学参数

Ｂｅｎｄｅｒ状态方程可用于Ｎ２－Ａｒ－Ｏ２三元体系，进行力学性质计算精度较高，本文根据Ｂｅｎｄｅｒ方程推导出焓、熵、比热等热力学参数的计算公式，对Ｎ２、Ａｒ、Ｏ２及共混合物进行计算，并与实验数据进行比较，结果令人满意。     

立方型状态方程用于蒸发热的计算

推导出立方型状态方程计算纯流体蒸发热的新公式,该计算式的特点是式中含有能量参数对温度的导数 da/dT,而与 a(T)无关。根据这一公式对立方型状态方程推算蒸发热进行了比较分析,提出a(T)与 da/dT 相互独立的计算方法,并用 Peng-Robinson 方程对70多种物质(包括烃、醇、卤代烃、酮、无机气体等)进行了关联计算,蒸汽压和蒸发热的平均相对误差分别为0.70%和1.33%。     

用于McCabe－Thiele图解法的新方程

用于ＭｃＣａｂｅ－Ｔｈｉｅｌｅ图解法的新方程根据许多不同公式的原理，一种Ｍｃ－Ｃａｂｅ—Ｔｈｉｅｌｅ完全解答法被提出。根据这种方法得到的结果与图解法得到的结果基本一致。用这种公式，大量的理论塔板数很快就能估算出来。不用逐板计算，就能直接评定出任何一个...     

马丁－侯状态方程向固相发展

ＭＨ－８１状态方程式经过进一步改进后，其使用范围可扩展到固相。在该方程中增加了三个常数，Ａ６、Ｂ７和ｂｓ后变为：Ｐ＝ＲＴＶ－ｂ＋Ａ２＋Ｂ２Ｔ＋Ｃ２ｅ－５．４７５ＴＴｃ（Ｖ－ｂ）２＋Ａ３＋Ｂ３Ｔ＋Ｃ３ｅ－５．４７５ＴＴｃ（Ｖ－ｂ）３＋Ａ４＋Ｂ４Ｔ（Ｖ－ｂ）４＋Ｂ５Ｔ（Ｖ－ｂ）５＋Ａ６（Ｖ－ｂｓ）６＋Ｂ７Ｔ（Ｖ－ｂｓ）７改进后的状态方程对于一般物质，如二氧化碳、氩、甲烷及氮等，在三相点到临界点温度、计算的饱和液相、汽相摩尔体积与文献值的偏差基本上保持ＭＨ－８１方程的准确度，而固相摩尔体积的偏差在几千大气压下也在１０％左右，一般压力不太高时都在５％以内，需要增加的输入信息仅三相点（Ｐｔ，Ｔｔ）下的Ｖｓｔ数据。     

甲苯－乙醇－正己烷（四氯化碳）三元体系过量焓

使用流动式微量热计测量了２９８．１５Ｋ下甲苯－乙醇－正己烷和甲苯－乙醇－四氯化碳两组三元体系以及正己烷－乙醇、乙醇－甲苯、正己烷－甲苯、四氯化碳－甲苯和四氯化碳－乙醇五组二元体系过量焓，对实测数据进行了关联，并计算了全浓度范围内过量焓，绘制了三元体系的等过量焓图。     

甲苯－乙醇－正己烷（四氯化碳）三元体系过量焓

使用流动式微量热计测量了２９８．１５Ｋ下甲苯－乙醇－正己烷和甲苯－乙醇－四氯化碳两组三元体系以及正己烷－乙醇、乙醇－甲苯、正己烷－甲苯、四氯化碳－甲苯和四氯化碳－乙醇五组二元体系过量焓，对实测数据进行了关联，并计算了全浓度范围内过量焓，绘制了三元体系的等过量焓图。     

单向复合材料弹性模量预测新式

根据复合材料单层的实际构造，提出了串并联组合模型，采用微观力学与宏观力学相结合的方法，推导出一组计算和复合材料弹性模量的新公式，其优点是：Ｅ１和ｖ１２，Ｅ２和Ｇ１２的计算式形式对称，结构简单，计算容易，物理意义明确，我们把由世界上许多著名学者提出的多组预测公式和本文导出式计算所得的结果与国内外已发表的硼／环氧、碳／环氧、玻璃／环氧复合材料的实验数据相比较，结果表明：导出式比其他公式精确，更有价值，     

On the formulas for thermal analysis of linings in a steady-state regime

The question of devising formulas for the direct and inverse problems of designing a lining in a steady-state regime that is in the form of a multi-layer wall is considered. The question involves a refinement of some of these formulas for the direct problem, a reduction of the formulas of the direct problem to a rational form, and correction of the conditions under which the formulas in both problems are applied.     

对炸药驱动飞片速度的理论计算方法的分析与评价

通过文献调研,介绍和分析了6种炸药爆轰驱动飞片速度的计算模型,并指出每一种计算模型的适用范围。讨论了格尼模型以及后人针对格尼模型应用中存在的问题,提出了改进计算模型,主要包括有效装药量、不同空气间隙大小、不同mc／mm比情况、多层装药贡献法、爆速法、炸药示性值法等,可为不同应用场合提供不同的参考模型。     

Infant formulas and the use of vegetable protein

Soy-based formulas and meat-based formulas are used as successful replacements for milk in the nutritional management of infants who are, or are suspected to be allergic to milk. Used most widely are soy-based formulas which eliminate the symptoms and ensure normal growth and well being of the infant. Soy-based formulas are made in both powdered and liquid forms, and the trend during the past decade has been to use a soy protein isolate to reduce or eliminate the presence of carbohydrates which cause flatulence and abnormal stooling. Details of the nutritional composition of soy-based infant formulas are discussed together with the selection and processing of protein in order to minimize the presence of antinutritional factors.     

炭黑在气力输送系统中的压力损失试验研究

炭黑在气力输送过程中的输送参数的确定大多以经验为主，极易造成输送效率的降低以及输送过程的不稳定对炭黑在输送管道中进行气力输送试验，分析了其在水平管、垂直管和弯管中的输送压力损失，分别得到了在这三种输送管道中的压力损失计算公式：该公式可作为工程上分析炭黑与气体混合流在输送管道中压力损失的经验公式。     

Investigation on new color depth formulas

Color depth is difficult to evaluate; however, it plays an important role in the assessments of color fastness, dyeing properties, and so on. The subjective evaluation of color depth is prone to be affected by people, environment, etc. As for objective evaluation, there are more than 10 formulas, which confuses the user. In this study, a theoretically designed new formula is inspected through 18195 chips with 24 grades of color depth from the SINO COLOR BOOK, with the help of four preferable objective evaluation formulas. The specimens were measured using an X‐Rite Color i7 spectrophotometer, and all their depth values were calculated and statistically analyzed by programming MATLAB. Of the five formulas, the new formula yields the best outcome of variance coefficients (CVs) but the worst linearity, with a correlation coefficient R = 0.976. It was then theoretically revised to two other formulas, one obtains the highest linearity (R = 0.9997) and the third CV, and the other gains the second linearity (R = 0.9984) and the second CV among the seven formulas. Besides, the three new formulas are not as sensitive as the others to the changes of Hue and Chroma. In general, the new revised formulas show potential and need to be further evaluated.     

颗粒物料临界速度和沉降速度的工程计算

在流化床干燥器(或冷却器)、气流干燥器、流化床吸收器、流化床反应器及气力输送等的工程设计中,颗粒物料的临界速度、沉降速度是主要的工艺参数,计算公式多,但这些公式的局限性较大.介绍了临界速度、沉降速度和操作速度的常用计算公式和计算实例,认为用普拉诺夫斯基修正式进行工程计算不需要进行区间判断,适用于床层孔隙率ε＝0.4～1.0的任何场合.     

New methods for processing experimental data: Applicability tests for empirical formulas

Several new mathematical methods for processing experimental data that can be used in chemical engineering and fluid dynamics are proposed. Direct (explicit and implicit), functional, and combined methods for testing empirical formulas for applicability are discussed. It is shown that for generality purposes it is reasonable to process the final results of experimental studies using special generalized variables, which are invariant under scaling and translation transformations. These variables can be used for testing several empirical formulas at the same time. The proposed methods can be successfully used for processing numerically computed results in order to obtain approximate formulas in any field of natural sciences.     

PVC型材中CaCO3用量的快速推导

研究了CaCO3用量对PVC型材密度的影响,总结出了经验公式。根据该公式．通过测量PVC型材的密度就可以快速推导出型材中CaCO3的用量。     

Estimation of potentially available protein in infant starting formulas for term and preterm neonates

Sixteen milk-based starting formulas were analyzed with the aim of calculating their "true protein" content and assessing "in vitro" protein digestibility, in order to estimate levels of potentially available protein. Ten of them were designed for term infants: 7 had a casein:whey protein ratio 40:60 (adapted formulas) and 3 a ratio 80:20 (non-adapted); the 6 remaining formulas (all adapted) were for preterm infants. Nitrogen was determined by the Kjeldahl method. True protein was calculated as (total N--non-protein N) x 6.25. NPN was determined in the soluble fraction, after protein precipitation with 24% trichloroacetic acid and centrifugation. Digestibility was assessed by digestion with pepsin and pancreatin, and defined as the increase in non-protein N after enzymatic digestion. Values for true protein were from 1.3 to 2.3 g/dL and for non protein N, from 4.5 to 13.7%. Digestibility values varied between 59.0 and 92.5%; an inverse trend was observed between protein digestibility and protein content. Considering both the "true protein" levels and their digested proportions, all preterm and 60% of the term formulas would present potentially available amounts below those recommended. These observations constitute an alert, even though this method of assessing "in vitro" protein digestibility represents only an approximation to physiological processes; however, it could be useful in order to evaluate the intensity of the heat treatments to which these formulas were subjected. On the other hand, since NPN allows the estimation of the true protein provided by the formulas, either its percentage or the true protein content could be included on the label.