نتایج جستجو برای: curing drying

تعداد نتایج: 34592  

2005
Guanben Du Siqun Wang Zhiyong Cai

Characteristics of microwave drying of wood strands with different initial moisture contents and geometries were investigated using a commercial 10 small microwave oven under different power inputs. Temperature and moisture changes along with the drying efficiency were examined at different drying scenar­ ios. Extractives were analyzed using gas chromatography=mass spectrometry (GC=MS). The res...

ژورنال: مواد پرانرژی 2019

Polybutadiene acrylic acid acrylonitrile (PBAN) is binder for composite solid propellants used in spacecraft systems which its curing kinetics is so important. In this research, the effect of functionality of epoxy curative on the curing kinetics of PBAN is researched. Equivalent stoichiometric ratios of PBAN and di-functional (DER 331) and tri-functional (LY 5052) epoxy curatives was cured at ...

2017
Oluwole A. Odetunmibi Oluyemisi A. Adejumo Pelumi E. Oguntunde Hilary I. Okagbue Adebowale O. Adejumo Esivue A. Suleiman

In this data article, laboratory experimental investigation results on drying kinetic properties: the drying temperature (T), drying air velocity (V) and dewatering time (Te), each of the factors has five levels, and the experiment was replicated three times and the output: drying rate and drying time obtained, were observed. The experiment was conducted at National Centre for Agricultural Mech...

Journal: :Contemporary Agriculture 2022

Summary The quality of black pepper (Piper nigrum L.), the ’king spices’, is largely dependent on postharvest handling and processing methods. Pungency aroma are most important qualities pepper, which attributed to its oleoresin volatile oils, respectively. Conventional open sun drying shade were tested for different pretreatment curing pepper. improvement reduction in duration exhibited sun-dr...

Journal: :Construction and Building Materials 2021

This review collates findings from more than 100 scientific publications regarding the performance of several waste-based porous materials (WASPORs) as water reservoirs for internal curing concrete. Results obtained by using recycled concrete aggregates, crushed ceramics, coal bottom ash, artificial different powder and fibres were included. The influence these WASPORs on consistence, hydration...

2018
James K Carson Janis E Swan

The effects of slice thickness, microwave pre-treatment, and drying temperature on drying orange kumara slices were investigated. The highest drying rate, with minimal loss of colour, occurred at 80°C. Slice thickness did not significantly influence colour but drying time increased with slice thickness. The drying curves fitted the Page thin-layer drying model. Two minutes microwave pre-treatme...

2004
Kevin Hettenbach

Microwave drying technology has the potential for large production time and energy cost savings versus traditional vacuum drying methods for active pharmaceutical ingredient (API) applications. One of the most critical parameters in the drying process is the determination of the end point, usually at a specified moisture content. On-line mass spectrometry (MS) was used as a tool to monitor micr...

2015
Seung-Hyun Youm Kyoung-Hwa Jung Sung-Ae Son Yong-Hoon Kwon Jeong-Kil Park

PURPOSE The aim was to evaluate the effect of curing mode and different dentin surface pretreatment on microtensile bond strength (µTBS) of self-adhesive resin cements. MATERIALS AND METHODS Thirty-six extracted human permanent molars were sectioned horizontally exposing flat dentin surface. The teeth were divided into 12 groups (3 teeth/group) according to the dentin surface pretreatment met...

2013

Multistage heat pump drying of macadamia nut under modified atmosphere was studied to improve the drying process and quality of the nuts. Conditions of study included drying temperature of 40-60°C, using nitrogen and normal air as drying medium. Drying kinetics and quality of nuts (moisture content, aw, rancidity and colour) as well as energy consumption of all drying processes were examined. T...

Journal: :Processes 2023

The control of the curing temperature during stem-drying stage is important for quality upper leaves flue-cured tobacco. Based on conventional process yellowing and leaf0drying in tobacco process, this study, dry-bulb was increased to 72 75 °C bulk barn compare with highest 68 commonly adopted barn. result showed that, compared setting, energy consumption cost reduced by 0.10 or 0.08 USD/kg whe...

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