Evaluation of the Sensitivity and Specificity of the New Clinical Diagnostic and Classification Criteria for Kashin-Beck Disease,an Endemic Osteoarthritis,in China

This study aimed to evaluate the sensitivity and specificity of the new clinical diagnostic and classification criteria for Kashin-Beck disease （KBD） using six clinical markers： flexion of the distal part of fingers, deformed fingers, enlarged finger joints, shortened fingers, squat down, and dwarfism. One-third of the total population in Linyou County was sampled by stratified random sampling.

Effect of new specific fertilizer on the growth of peanut

Based on the soil nutrient condition of Fujian province and the nutritional characteristic of peanut, new specific peanut fertilizer was made with some new types of synergists and chemical fertilizers. In 2005, a field experiment was conducted to study the effect of the new specific fertilizer on peanut at Gaobi town, Longyan city, Fujian province. The results showed that, the new specific fertilizer could relieve the inhibition of fertilizers on nodule formation of peanut, promote the growth of peanut plants, increase the yield of peanut and improve the utilization rate of fertilizer, contrasted to common fertilizers. To compare with one time application of common fertilizers, the new specific fertilizer which was applied one time and twice had significant positive influences on yield of peanut and nutrient use efficiency, increased economic yield of peanut by 3.8% and 6.3%; improved nitrogen, phosphorus and potassium use efficiency by 3.9, 2.8, 4.3 and 4.5, 5.7, 7.4 percentage points respectively. Compared with twice applications of common fertilizers, the new specific fertilizer which was applied as the method above increased economic yield of peanut by 0.7% and 3.2%; improved nitrogen, phosphorus and potassium use efficiency by 0.3, 1.6, 0.5 and 0.9 4.5, 3.6 percentage points respectively.

Rapid profiling rock mass quality underneath tunnel face for Sichuan-Xizang Railway

The Sichuan-Xizang Railway is a global challenge,surpassing other known railway projects in terms of geological and topographical complexity.This paper presents an approach for rapidly profiling rock mass quality underneath tunnel face for the ongoing construction of the Sichuan-Xizang Railway.It adopts the time-series method and carries out the quantitative analysis of the rock mass quality using the depth-series measurement-while-drilling(MWD)data associated with drilling of blastholes.A tunnel face with 15 blastholes is examined for illustration.The results include identification of the boundary of homogeneous geomaterial by plotting the blasthole depth against the net drilling time,as well as quantification of rock mass quality through the recalculation of the new specific energy.The new specific energy profile is compared and highly consistent with laboratory test,manual logging and tunnel seismic prediction results.This consistency can enhance the blasthole pattern design and facilitate the dynamic determination of charge placement and amount.This paper highlights the importance of digital monitoring during blasthole drilling for rapidly profiling rock mass quality underneath and ahead of tunnel face.It upgrades the MWD technique for rapid profiling rock mass quality in drilling and blasting tunnels.