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New insights on the standardization of peripheral nerve regeneration quantitative analysis
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作者 Giulia Ronchi Stefania Raimondo +1 位作者 Stefano Geuna Giovanna Gambarotta 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第5期707-709,共3页
Peripheral nerves form a complex network connecting the central nervous system and the body. Injuries to peripheral nerves often lead to partial or complete loss of motor, sen- sory and autonomic functions, thus inter... Peripheral nerves form a complex network connecting the central nervous system and the body. Injuries to peripheral nerves often lead to partial or complete loss of motor, sen- sory and autonomic functions, thus interfering with many aspects of an individual's life. 展开更多
关键词 GENE RNA New insights on the standardization of peripheral nerve regeneration quantitative analysis very
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Analysis of Bridge-Bearing Capacity Detection and Evaluation Technology
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作者 Wei Fu Bo Liu 《Journal of World Architecture》 2024年第2期129-133,共5页
A bridge project is taken as an example to analyze the application of bearing capacity detection and evaluation.This article provides a basic overview of the project,the application of bearing capacity detection techn... A bridge project is taken as an example to analyze the application of bearing capacity detection and evaluation.This article provides a basic overview of the project,the application of bearing capacity detection technology,and the bearing capacity assessment analysis.It is hoped that this analysis can provide a scientific reference for the load-bearing capacity detection and evaluation work in bridge engineering projects,thereby achieving a scientific assessment of the overall load-bearing capacity of the bridge engineering structure. 展开更多
关键词 Bridge engineering structure Bearing capacity Calculation model Detection points quantitative standards
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STUDIES ON OPTIMUM MODELS FOR CULTIVATING DAHURIAN LARCH SEEDLINGS ON FRIGID REGIONS
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作者 宋景和 《Journal of Northeast Forestry University》 SCIE CAS CSCD 1996年第2期6-10,共5页
The optimum models for cultivationg the seedlings of Dahurian Larch (Larix gmelim Rupr. ) were studied in the central nursery of Tahe Forestery Bureau from 1989 to 1993. The resultswerc as follows The optimum... The optimum models for cultivationg the seedlings of Dahurian Larch (Larix gmelim Rupr. ) were studied in the central nursery of Tahe Forestery Bureau from 1989 to 1993. The resultswerc as follows The optimum models of the main morphological standards of the seedlings were30000 kg /hm2 of' decomposed' ash for improviong soil, 70,000 kg/hm2 of excrement and 1,500 kg/hm2of' calcium superphosphate as basal fertilizer , and 500 kg/hm2 of (NH4)2HPO4 and 220 kg/hm2 of'urea as top dressing. During growth perlod of the seedlings, the growth was greatly checked when thesoil water suction (SWS) was uithin 50 ~ 73. 3 kPa or below 10 kPa but greatest when SWS waswithin 30 ~ 40 kPa in initial growth stage and within 10-20kPa in last growth stage. The method for determining the optimum sowing time is to measure the depth of soil thawing, accumulated temperature abovc 5℃ both at 5 cm of the depth of of soil and in atmosphere. In Tahe region, the optimumsowing trme for Dahurian larch for Dahuria larch is about on May 10 when the depth of soil thawing, the accumulatedtemperature above 5℃ at 5 cm of the depth and the accumulated temperature above 5℃ in atmosphere reaches 40 cm. abovc 46℃ and abovae 56℃ respectively. The optimum seedlings density forthis region is 600-800 individuals/m2. 展开更多
关键词 Dahurian larch Seedling Phenological rule Community effect Soil water management standard quantitative model
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Determination the content of gypsum fibrosum in Xiaokening tablets by powder X ray diffraction method 被引量:2
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作者 Jianping Zhang Xinxin Feng Dong Wang 《Journal of Chinese Pharmaceutical Sciences》 CAS CSCD 2019年第3期186-194,共9页
The research on the application of X-ray diffraction in the quantitative analysis of Chinese medicines is rare. The main reason is that the technical problems related to the internal standard and the selection of quan... The research on the application of X-ray diffraction in the quantitative analysis of Chinese medicines is rare. The main reason is that the technical problems related to the internal standard and the selection of quantitative peaks are not well solved, and the accuracy and precision of the results are not satisfactory. This study employed the concept of mass absorption coefficient based on the internal standard method, and the full spectrum fitting and quantitative methods were used to solve the above technical problems. The sample was blended. the internal standard substance of zinc oxide was fully ground, and tablets were prepared by positive pressure method. Under certain instrumental conditions, the PXRD pattern was obtained by scanning. The percentage of gypsum fibrosum in Xiaokening tablet was obtained by quantitative analysis of full spectrum fitting internal standard by TOPAS software. The method was investigated by methodology. At the same time, the method was compared by ion chromatography, and SPSS software was used to make a significant t test on the results of the two methods. After the investigation, the average standard recovery rate of CaSO4-2H2O was 99.06%(RSD = 3.02%);and the recovery rate for simulated samples was 96.7%. The method had good specificity. After statistical analysis, there was no significant difference between the new PXRD method and the traditional method of ion chromatography. 展开更多
关键词 Powder X ray diffraction Full spectrum fitting internal standard quantitative method Xiaokening tablet Gypsum fibrosum
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