The aim of this report is to study the properties of quasi-carbon fibers (QCF) prepared from the PAN fiber precursor by pyrolysis at a temperature between 400℃ and 1200℃. The resistivity of QCF with different heat-t...The aim of this report is to study the properties of quasi-carbon fibers (QCF) prepared from the PAN fiber precursor by pyrolysis at a temperature between 400℃ and 1200℃. The resistivity of QCF with different heat-treated temperature (HTT) was investigated by a Hall-35 testing system, and the flexural properties of the result composites (QCFC) are also discussed. In addition, the scanning electronic microscope (SEM) was utilized to observe the surface morphology of QCF and the fracture section of QCFC obtained from flexural testing.展开更多
Anxiety and depression are highly heritable disorders that lead to significant impairment in affected individuals across gender,ethnicity and race;these disorders are frequently the leading causes of disability and su...Anxiety and depression are highly heritable disorders that lead to significant impairment in affected individuals across gender,ethnicity and race;these disorders are frequently the leading causes of disability and suicide in many countries.展开更多
GENERAL INFORMATIONWorld Journal of Gastroenterology(World J Gastroenterol,WJG,print ISSN 1007-9327,online ISSN 2219-2840,DOI:10.3748)is a peer-reviewed open access(OA)journal.WJG was established on October 1,1995.It ...GENERAL INFORMATIONWorld Journal of Gastroenterology(World J Gastroenterol,WJG,print ISSN 1007-9327,online ISSN 2219-2840,DOI:10.3748)is a peer-reviewed open access(OA)journal.WJG was established on October 1,1995.It is published weekly on the 7th,14th,21st,and 28th each month.The WJG Editorial Board consists of 1353experts in gastroenterology and hepatology from 68 countries.展开更多
文摘The aim of this report is to study the properties of quasi-carbon fibers (QCF) prepared from the PAN fiber precursor by pyrolysis at a temperature between 400℃ and 1200℃. The resistivity of QCF with different heat-treated temperature (HTT) was investigated by a Hall-35 testing system, and the flexural properties of the result composites (QCFC) are also discussed. In addition, the scanning electronic microscope (SEM) was utilized to observe the surface morphology of QCF and the fracture section of QCFC obtained from flexural testing.
文摘Anxiety and depression are highly heritable disorders that lead to significant impairment in affected individuals across gender,ethnicity and race;these disorders are frequently the leading causes of disability and suicide in many countries.
文摘GENERAL INFORMATIONWorld Journal of Gastroenterology(World J Gastroenterol,WJG,print ISSN 1007-9327,online ISSN 2219-2840,DOI:10.3748)is a peer-reviewed open access(OA)journal.WJG was established on October 1,1995.It is published weekly on the 7th,14th,21st,and 28th each month.The WJG Editorial Board consists of 1353experts in gastroenterology and hepatology from 68 countries.
