نتایج جستجو برای: temperature 55

تعداد نتایج: 551166  

Journal: :Global change biology 2015
Junjie Lin Biao Zhu Weixin Cheng

The response of soil organic carbon (SOC) pools to globally rising surface temperature crucially determines the feedback between climate change and the global carbon cycle. However, there is a lack of studies investigating the temperature sensitivity of decomposition for decadally cycling SOC which is the main component of total soil carbon stock and the most relevant to global change. We tackl...

2016
Parnian Alizadeh Oskoee Fatemeh Pornaghi Azar Jafar Sajjadi Oskoee Ahmad Pirzadeh Ashraf

Background and aims. Various factors influence the interfacial bond between the fiber posts and root canal dentin. The aim of the present study was to evaluate the effect of pre-warming of resin cement on the push-out bond strength of fiber posts to various segments of root canal dentin. Materials and methods. In this in vitro study, 40 single-rooted human premolars were decoronated and underwe...

2006
A. E. Ghaly

The suitability of the triphenyl tetrazolium chloride (TTC) for dehydrogenase activity measurement of the vegetative cells of the fungal species Aspergillus niger was investigated. The triphenyl formazan (TF) yield increased with the increases in TTC concentration, pH, temperature and incubation time within the studied ranges. The effects of individual parameters, as well as the combined effect...

2012
Chun-Ching Hsiao An-Shen Siao Jing-Chih Ciou

This study proposes trenching piezoelectric (PZT) material in a thicker PZT pyroelectric cell to improve the temperature variation rate to enhance the efficiency of thermal energy-harvesting conversion by pyroelectricity. A thicker pyroelectric cell is beneficial in generating electricity pyroelectrically, but it hinders rapid temperature variations. Therefore, the PZT sheet was fabricated to p...

Journal: :Current Oncology 2020

Journal: :The American Journal of the Medical Sciences 1840

Journal: :Padres y Maestros / Journal of Parents and Teachers 2020

Journal: :Astronomy & Astrophysics 2018

Journal: :Astronomy & Astrophysics 2020

Journal: :The Bulletin of the Royal College of Surgeons of England 2008

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