The measurement and calculation of the sample density and X-ray powder diffraction of Yb~(3+):BaWO_4 crystals were used to check the influence of K~+ -codoped ions on the lattice structure.

A new simple method which measures and calculates the leaf area of somefoliaged trees is advanced by applying relative leaf form method. The calculating formula is:S =1/2(W_(0.122L)+W_(0.7L))L.

The formula for measuring and calculating area of teak true leaf is y=0 5326+0 7289x (y is area and x is leng×width of leaf, r=0 9924, n=184), and that of flank leaf is y=0 0495+0 7031x (y and x same true leaf area formula, r=0 9912, n=184).

The power supply reliability management information system has such functions as reckoning, querying and report printing of power supply reliability in the electric corporation.

· Exploring the determinants of citrus yield per mou, quantitatively analyzing influence of various factors on the yield and citrus growers' net revenues , and reckoning contribution ratio of technical progress;

The overall frame of the Computer-Aided Time Quota Predetermining system software (CATQPS) was designed and two core function modules, namely the standard datum management module and the time quota predetermining model module were put into reality.

论文完成了“计算机辅助工时定额测算系统(Computer Aided Time Quota Predetermining System，CATQPS)”的软件总体框架设计以及标准资料管理和定额测算模型管理等两个核心功能模块的系统实现。

The theory of work element was introduced into the course of predetermining the time quota and the quota time-predetermining model with the two layers of structure were set up -one is based on the process unit and the other is based on work element according to the principle of the time quota which was divided in two items-one is to analyze the rationality of the work content and the other is to study the law of the time consumption.

This boils down to a Duistermaat-Heckman exact stationary phase calculation, involving a Poisson structure on the dual symmetric space G0/K discovered by Evens and Lu.

The efficient Fourier transform also makes possible the efficient calculation of convolution over SO(3) which has been used as the analytic engine for some new approaches to searching 3D databases (Funkhouser et al., ACM Trans.

Based on the calculation results obtained, a series of new 3-hydroxy-2-oxo-3-trifluoromethylindoles were synthesized as a novel class of potential RT inhibitors.

Synthesis, AM1 calculation, and biological studies of thiopyran-4-one and their azine derivatives

The main feature of the method in this paper is that the surface so constructed is polynomial, which makes the construction simple and the calculation easy.

The CoMFA analysis was performed by calculating steric and electrostatic interaction energies around a three dimensional grid.

The formulas for calculating such probabilities are deduced through analytical and probabilistic arguments respectively.

Note on calculating wiener numbers of molecular graphs with symmetry

The authors provided a simple method for calculating Wiener numbers of molecular graphs with symmetry in 1997.

The method for calculating the binding-site number in BSA for Indo-1 was developed based on the relationships between changes in Indo-1 fluorescence intensity and the analytical concentration of BSA.

A novel estimation scheme based on dead reckoning (DR) model for networked control system (NCS) is proposed in this paper.

The reckoning system for the robot traveled distance is described.

The proposed architecture of position and orientation estimation consists of two extended Kalman filters and a processing unit of Runga-Kutta based dead reckoning.

To obtain higher accuracy of estimation, an arbitrator is designed to switch between EKF2 and dead reckoning.

This scheme combines data from the observed position, using dead-reckoning sensors, and the estimated position, using images of moving objects, such as a walking human captured by a camera system, to determine the location of a mobile robot.

In this paper, the technological processes of the production of iron-base porous metal spindle bolster and investigations of its physical and working properties are made. From testing results, we see that under same spindle speed, in conparison with ordinary cast iron spindle bolster, the use of 2° iron-base porous metal bolster lowers the temperature of lubricating oil by 0.8—1.1℃, reduces wear of both spindle and bolster, diminishes splashing of spindle oil, and reduces consumption of power and lubricants....

In this paper, the technological processes of the production of iron-base porous metal spindle bolster and investigations of its physical and working properties are made. From testing results, we see that under same spindle speed, in conparison with ordinary cast iron spindle bolster, the use of 2° iron-base porous metal bolster lowers the temperature of lubricating oil by 0.8—1.1℃, reduces wear of both spindle and bolster, diminishes splashing of spindle oil, and reduces consumption of power and lubricants. It could be used under higher spindle speed, say, 16000～17000 R. P. M.

The response of breathing 40% oxygen was studied in 32 temporary residents diagnosed right ventricular hypertrophy ( RVH ) or doubtful ( RVH) by VCG at an altitude of 4,500m.Before and after administration of oxygen for 10-15 min., clinical auscultation, indirect measuring of pulmonary systolic pressure, pulmonary rheography and VCG were determined. The results showed that after breathing oxygen all parameters reflecting pulmonary vascular resistance and pulmonary arterial pressure decreased obviously, showing...

The response of breathing 40% oxygen was studied in 32 temporary residents diagnosed right ventricular hypertrophy ( RVH ) or doubtful ( RVH) by VCG at an altitude of 4,500m.Before and after administration of oxygen for 10-15 min., clinical auscultation, indirect measuring of pulmonary systolic pressure, pulmonary rheography and VCG were determined. The results showed that after breathing oxygen all parameters reflecting pulmonary vascular resistance and pulmonary arterial pressure decreased obviously, showing statistical significance ( p<0.001 ) . These data suggested that the main factor responsible for the increase in pulmonary arteriolar resistance of temporary residents was hypoxic vasoconstriction which could be reversed by oxygen breathing. It seemed that pulmonary arteriolar changes of altitude resident were functional in nature. Oxygen breathing had no influence upon the results of VCG. Oxygen test and indirect parameters mentioned above could be introduced to physicians to evaluate the pulmonary vascular function as well as the adaptability of temporary residents at high altitude.

This paper presents a new method of sight reduction,computing the observer's latitude and longitude directly fromobservations of a single heavenly body in short time, or oftwo or three ones. In this new method, tangents of circle,parabola and hyperbola on spherical surface are used as linesof position. The ship's position can be obtained by solvingthe linear equations, derived in this paper, in iteration for aconvergent solution. For a fix by multiple sight, equations inredundancy are solved by least squared...

This paper presents a new method of sight reduction,computing the observer's latitude and longitude directly fromobservations of a single heavenly body in short time, or oftwo or three ones. In this new method, tangents of circle,parabola and hyperbola on spherical surface are used as linesof position. The ship's position can be obtained by solvingthe linear equations, derived in this paper, in iteration for aconvergent solution. For a fix by multiple sight, equations inredundancy are solved by least squared method to reach thebest match. An initial verification of the equations derived has beenmade as shown in appropriate examples, and after furtherverification in practice, these equations may be used as mathe-matical models for celestial fixing in designing a programmednavigation computer