نتایج جستجو برای: autoclave

تعداد نتایج: 1241  

2002
Dean A. Martens Kevin L. Loeffelmann

Soils have a great potential to accumulate carbon from atmospheric sources, but we possess few quantitative tools to predict and understand the conversion of C from plant sources into stable soil organic matter. Evaluation of present methods used for analyzing the major form of carbon present in plants, carbohydrates, found that development of ‘total carbohydrate’ methods were originally based ...

Journal: :Review of Scientific Instruments 2021

We present a new autoclave that enables in situ characterization of hydrothermal fluids at high pressures and temperatures synchrotron x-ray radiation sources. The has been specifically designed to enable absorption spectroscopy with applications mineral solubility element speciation analysis complex compositions. However, other applications, such as Raman spectroscopy, high-pressure are also p...

1970
Ying Jun Wang Chen Lai Kun Wei Xiaofeng Chen Yong Ding Zhong Lin Wang

In this paper, uniform hydroxyapatite (HA) nanowires of width 60 nm and length 1 μm are synthesized by solvothermal synthesis. The formation process of the nanowires has been elaborated from the structure within the reverse micelles by the time-resolved fluorescence quenching technique. The results reveal that the formation of amorphous nuclear/surfactant complex and the electrostatic field wit...

2016
G. Tate

SbvErai, investigators have shown that considerable variation exists in the activity of digitalis leaves. (1) Even those of the Official variety grown in the same locality have been found to differ in glucosidal content. The two chief factors which modify the activity of the leaves are: (2) heat and (3) moisture. Heat increases the activity by increasing the amount of glucosides formed, while m...

Journal: :Indonesian Journal of Laboratory 2020

Journal: :dental research journal 0
shiva alavi neda sinaee

background: sterilization techniques could affect the characteristics of orthodontic wires. the aim of the present study was to evaluate the effect of steam and dry heat sterilization techniques on load-defl ection behavior of fi ve types of β-titanium alloy wires. materials and methods: the samples consisted of 30 straight lengths of fi ve types of β-titanium alloy wires: titanium molybdenum a...

Journal: :Fermentation 2023

Biomass pretreatment is a critical method for improving the anaerobic digestion (AD) performance of lignocellulosic feedstocks. In this study, an effective combined ammonia–autoclave was selected corn straw at 90 °C using four ammonia concentrations (7%, 9%, 11%, and 13%). The results showed that improved substrate’s degradation efficiency system’s buffer capacity, significantly hydrolysis biog...

Journal: :The Journal of Auto-Nomic Nervous System 1976

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