This paper describes a new design for the test light source of an L/U-band extended optical fiber line testing system and the side-band suppresser ratio of the test light should be more than 70 dB.
One of the impediments in the genetic improvement of cotton fiber is the paucity of information about genes associated with fiber development.Availability of chromosome arm substitution line CS-
Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines. This paper puts forward the method of using fiber Bra...Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines. This paper puts forward the method of using fiber Bragg grating(FBG) as the monitors to parameters correlated with thermal and stress of the composite insulators in transmission lines at working status. Firstly, monitoring points are found out by the mechanical test on composite insulator samples. Secondly, based on the monitoring theory, this paper introduces the feasibility design frame of the composite insulator with FBG implanted in the rod and the online monitor system. At last, it describes applications of this monitor system in the field of transmission lines.展开更多
In this work, a novel hollow fiber membrane extractor was set up to extract inorganic anions from ethyl acetate using deionized water. Inorganic anions in slightly soluble organic solvents can be determined by the in-...In this work, a novel hollow fiber membrane extractor was set up to extract inorganic anions from ethyl acetate using deionized water. Inorganic anions in slightly soluble organic solvents can be determined by the in-line hollow fiber membrane extractor coupled with ion chromatography at first time. Different aspects of the extraction procedure such as magnetic stirring speed, extraction flow rate and extraction time were optimized to achieve high extraction efficiency and good separation results. Satisfactory linear range, limits of detection and good repeatability were obtained. The procedure was applied to analyze inorganic anions in two commercial ethyl acetate samples.展开更多
A chromosome substitution line, CS-B25, was developed by the substitution of chromosome pair 25 of Gossypium hirsutum TM-1 with the homologous pair of chromosome 25 from G. barbadense, a double haploid Pima 3-79 line....A chromosome substitution line, CS-B25, was developed by the substitution of chromosome pair 25 of Gossypium hirsutum TM-1 with the homologous pair of chromosome 25 from G. barbadense, a double haploid Pima 3-79 line. CS-B25 has improved fiber traits compared to its parent TM-1. To explore the molecule mechanisms underlying improved fiber traits, deep sequencing of total RNA was used to compare gene expression in fibers of CS-B25 and TM-1 at 10 days post anthesis (10-DPA). A total of 1872 differentially expressed genes (DEGs) were detected between the two lines, with 1175 up-regulated and 697 down-regulated in CS-B25. Gene Ontology (GO) enrichment analysis of the expression data by Generally Applicable Gene-set Enrichment (GAGE) and ReviGO indicated that the most prevalent Biological Process GO terms associated with DEGs included DNA-templated transcription, response to oxidative stress, and cellulose biosynthesis. Enriched Molecular Function GO terms included structural constituents of cytoskeleton, peroxidase activity, cellulose synthase (UDP-forming) activity, and transcription regulatory region sequence-specific DNA binding factors. GAGE was also used to find enriched KEGG pathways, and the highly represented pathways were Biosynthesis of Amino Acids, Starch and Sucrose Metabolism, Phenylpropanoid Biosynthesis, Protein Processing in Endoplasmic Reticulum, and Plant Hormone Signal Transduction. Many of the identified DEGs are involved in cytoskeleton and cell wall metabolism. The results of gene expression data have provided new insight into the molecular mechanisms of fiber development during the fiber elongation stage and would offer novel candidate genes that may be utilized in cotton fiber quality improvement.展开更多
文摘This paper describes a new design for the test light source of an L/U-band extended optical fiber line testing system and the side-band suppresser ratio of the test light should be more than 70 dB.
文摘One of the impediments in the genetic improvement of cotton fiber is the paucity of information about genes associated with fiber development.Availability of chromosome arm substitution line CS-
基金supported by National High-tech Research and Development Program of China (863 Program) (2013AA030701)Science and Technology Project of the State Grid Xinjiang Electric Power Corporation (5230DK15009L)
文摘Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines. This paper puts forward the method of using fiber Bragg grating(FBG) as the monitors to parameters correlated with thermal and stress of the composite insulators in transmission lines at working status. Firstly, monitoring points are found out by the mechanical test on composite insulator samples. Secondly, based on the monitoring theory, this paper introduces the feasibility design frame of the composite insulator with FBG implanted in the rod and the online monitor system. At last, it describes applications of this monitor system in the field of transmission lines.
基金supported by National Natural Science Foundation of China(No.20775070)by Zhejiang Provincial Natural Science Foundation of China(No.R4080124)Zhejiang Qianjiang Project of Science and Technology for Competent People(No.2008R10028).
文摘In this work, a novel hollow fiber membrane extractor was set up to extract inorganic anions from ethyl acetate using deionized water. Inorganic anions in slightly soluble organic solvents can be determined by the in-line hollow fiber membrane extractor coupled with ion chromatography at first time. Different aspects of the extraction procedure such as magnetic stirring speed, extraction flow rate and extraction time were optimized to achieve high extraction efficiency and good separation results. Satisfactory linear range, limits of detection and good repeatability were obtained. The procedure was applied to analyze inorganic anions in two commercial ethyl acetate samples.
文摘A chromosome substitution line, CS-B25, was developed by the substitution of chromosome pair 25 of Gossypium hirsutum TM-1 with the homologous pair of chromosome 25 from G. barbadense, a double haploid Pima 3-79 line. CS-B25 has improved fiber traits compared to its parent TM-1. To explore the molecule mechanisms underlying improved fiber traits, deep sequencing of total RNA was used to compare gene expression in fibers of CS-B25 and TM-1 at 10 days post anthesis (10-DPA). A total of 1872 differentially expressed genes (DEGs) were detected between the two lines, with 1175 up-regulated and 697 down-regulated in CS-B25. Gene Ontology (GO) enrichment analysis of the expression data by Generally Applicable Gene-set Enrichment (GAGE) and ReviGO indicated that the most prevalent Biological Process GO terms associated with DEGs included DNA-templated transcription, response to oxidative stress, and cellulose biosynthesis. Enriched Molecular Function GO terms included structural constituents of cytoskeleton, peroxidase activity, cellulose synthase (UDP-forming) activity, and transcription regulatory region sequence-specific DNA binding factors. GAGE was also used to find enriched KEGG pathways, and the highly represented pathways were Biosynthesis of Amino Acids, Starch and Sucrose Metabolism, Phenylpropanoid Biosynthesis, Protein Processing in Endoplasmic Reticulum, and Plant Hormone Signal Transduction. Many of the identified DEGs are involved in cytoskeleton and cell wall metabolism. The results of gene expression data have provided new insight into the molecular mechanisms of fiber development during the fiber elongation stage and would offer novel candidate genes that may be utilized in cotton fiber quality improvement.
