Some of the problems were found at calibration analysis of trace sulfur analyzer and to resolve these problems method during production operation were summarized and explained.

The calibration analysis of reliability of bending members of steel highway bridges in JTJ025-86 was performed by using the method of first-order-second-moment in GB/J50283-1999 Unified Design Standard for Structural Reliability of Highway Engineering.

This method was applied to the further calibration analysis of a typical lightwave component analyzer (LCA)-based photodetector measurement system. The experiment of a novel photodetector demonstrates that in the range of 130MHz to 20GHz,an obvious improvement in the calibration of the S21 parameter has been achieved compared to the traditional algorithm,and the proposed method is proved feasible.

This text has made a deep analysis for the raster transducer on its principle, and carried on the static behavior to its parameter standard, carry on numerous dynamic calibration analysis to the transducer of the existing grating, receive the dynamic characteristic of the existing transducer.

After revamping,the results from the practical operation and calibration analysis show that the tower load is raised by 50%, the throughput is enhanced to 1.5 times as the original, the handling capacity of tower arranges from 11.20 t/h to 15.05 t/h, and the operating elasticity reaches to 8%.

The main problem to be resolved for the establishment of well logging tool calibration system is pre- sented in this article based on the definition the definition of logging tool calibration, analysis of the condition to define log- ging,and the confirmation of the calibration accuracy the the reliable path of calibration and verfica- tion.

Using new generation two dimensional image analysis software, ImageMaster 2D Elite, the 2D gels of proteins extracted from cultured Schwann’s cells were processed. The analysis procedure, including image acquirement, spot detection, match, background subtraction, p I / M r calibration, analysis results report and database query, were reported and discussed.

A calibration analysis of the reliability of design equations of bending and bearing strenght of pin connection presented by the specifications for the Design of Timber structures GBJ-5-73 is made by using probability design method of first order second moment.The reliability exponents β are 3,48 and 3,95 respectively The factors affecting the bearing capacity of the pin hole are studied carefully using experimental analysis.The statistical parameters presented in this paper will contribute to modify...

A calibration analysis of the reliability of design equations of bending and bearing strenght of pin connection presented by the specifications for the Design of Timber structures GBJ-5-73 is made by using probability design method of first order second moment.The reliability exponents β are 3,48 and 3,95 respectively The factors affecting the bearing capacity of the pin hole are studied carefully using experimental analysis.The statistical parameters presented in this paper will contribute to modify the curreut specifications for the Design of Timber strucetures.

Tree--ring data were sampled from the north slope of Changbai Mountain, Northeast China. Three spedes from five sites growing along altitudinal gradient were coiled. For each site the tree cores were cross--dated using skeleton plot and measured to the nearest 0.01 mm using standard techniques. The dating and measurement were validated using an improved version of the COFECHA program. Final chronologies were developed using the program ARSTND. The age trend of trees was modeled by a cubic spline. Using a bi--weight...

Tree--ring data were sampled from the north slope of Changbai Mountain, Northeast China. Three spedes from five sites growing along altitudinal gradient were coiled. For each site the tree cores were cross--dated using skeleton plot and measured to the nearest 0.01 mm using standard techniques. The dating and measurement were validated using an improved version of the COFECHA program. Final chronologies were developed using the program ARSTND. The age trend of trees was modeled by a cubic spline. Using a bi--weight robust mean method, de--trend indias were averaged to form standard chronologies (STD). To minimize the variations that reflect competitive interactions between trees, further standardization was done by fitting an autoregression model to the de--trend index and residual chronologies (RES) were calculated using the same average method.Common interval analysis indicates that RES chronologies are with more common yearto --year variations and express more population signal. Therefore, RES chronologies are suitable for dendroclimatic research in this study. Comparisons of climatic quality among five RES chronologies indicate that trees growing near their upper elevational hot are more suitable for dendroclimatic study than those growing at the upper elevational limit and at the center of the distribution. Climatic data for Tianchi, Antu and Changbai meteorological stations were employed and four climatic elements, monthly mean minimum temperatUre, monthly mean temperature, monthly mean maximum temperature and monthly total precipitation, were involved in this study. All data were tested for homogeneity.Response function, correlation function, scatter diagram and single--year analysis were utilized to stUdy the response of tree radial growth to climatic elements. The results showed that ma studied were mainly affected by climatic elements. From 63% to 78% percent of growth variance can be accounted for by monthly mean air temperature and monthly total precipitation. And the response to temperature is stronger than to precipitation. While,for three temperature elements, the response to monthly mean maximum temperature is the strongest, especially, in winter and spring seasons. As a result, monthly mean maximum temperature was selected to reconstruct.Multiple linear regression analyses were used to perform calibration analysis.Regression equations were developed by regressing monthly mean maximum temperature for various combinations of blocks of month against ring-width data from all sites. To reconstruct a seasonal series of climate, January to April was selected as the reconstructing season, and an average record of January to April mean maximum temperature was formed from the three stations providing a regional record. This regional record allows to reconstruct past climate of Changbai Mountain.Regressions were calculated between January ~ April mean maximum temperature and ring --width data for various combinations of tree- ring sites. Band on the equation statistics such as the percentage of variance expressed by the equation, two regression equations were selected, one is for reconstruction before 1833, and the other for after. house a chrOnology from ANPK site was included in the second equation, the statistics of the equation were improved. The stability of there two equations was tested by cross--validation procedure using verification statistics including sign test, product mean and reduction error. All of these statistics indicated that the selected equations were of the predicative capability,and that they can be used as the transfer functions.According to the transfer functions, January ~ April mean maximum temperatures of Changbai Mountain were reconstructed year by year, and the reconstruction was smoothed by applying a resistant smoother. It was found that the reconstructed low--frequency variations were more reliable than the year--to--year variations. Therefore, only the low--frequency variations were discussed. From the 339 years' low--frequency variations, it was found that the departures oscill

The calibrations of sensors have not been made correctly and standardly at home.But rigorouslessness of calibration analysis is the major factor to cause serious error.The oil reservoir pressure/temperature sensors are calibrated and a kind of mathematical simulation is established.A demarcating formula of the sensor is obtained by using multiple regression analysis,which provides the basis for the measurement of high precision.