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Saleh B. Alsaidi, Jeongmoo Huh and Mohamed Y. E. Selim
The performance of two solid biomass wastes, date stone and jojoba solid waste, was experimentally examined for their potential application in combustion and propulsion systems. The fuels were tested in a hybrid rocket-like combustion environment, and th...
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Calvin Nguyen and James C. Thomas
Hybrid rocket engine (HRE) performance is dependent on fuel/oxidizer selection and fuel grain geometry. A literature review was performed to identify key trends and findings related to the application of the additive manufacturing (AM) of fuel systems fo...
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Khizar Hussain Shah, Noor S. Shah, Gul Afshan Khan, Sadaf Sarfraz, Jibran Iqbal, Aneeqa Batool, Ahmad Jwuiyad, Shabnam Shahida, Changseok Han and Monika Wawrzkiewicz
This study focuses on investigating and comparing the influence of the surface functional groups and chemical matrices of macroporous resin on the Cr(III) exchange mechanism. The results discussed herein indicate that sulfonic resin removed Cr(III) ions ...
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Youngwook Lim, Junwon Min, Taewook Kang and Dongchoul Kim
The dissolved gas concentration in a stirred tank has significant importance in the chemical and biological processing industries as mass transfer from the injected gas to an aqueous solution must occur for the gas to be usable. As the solubility of the ...
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Marin Micutz, Rodica Mihaela Lungu, Viorel Circu, Monica Ilis and Teodora Staicu
Hydrogels containing both carboxyl and hydroxyl functional groups have been prepared by ?-irradiation of either aqueous solutions of acrylic acid (AA) and mixtures of AA and 2-hydroxyethyl methacrylate (HEMA) in different ratios, or aqueous solutions of ...
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Andriy Slyuzar,Yaroslav Kalymon,Zenoviy Znak,Andriy Helesh
Pág. 76 - 82
This paper reports a study into the influence of sodium carbonate concentration (10, 30, and 50 kg/m3) in the simultaneous presence of sodium thiosulfate (250 kg/m3) and quinhydrone (5 kg/m3) on the coefficient of the phase distribution of...
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Yihuan Deng and Andrew Wheatley
Due to urbanisation, there are large amounts of waste concrete, particularly in rapidly industrialising countries. Currently, demolished concrete is mainly recycled as aggregate for reconstruction. This study has shown that larger sizes (2?5 mm) of recyc...
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Prola Gabil Pindah
Pág. 45
Empty fruit bunch (EFB) was utilized into biochar by pyrolysis and used as adsorbent for malachite green (MG) dye removal. EFB biochar were produced at temperature 300°C, 400°C, 450 °C and 500°C. Characteristics of biochar were characterized by moisture ...
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Jing Yu and Ling-Ling Pei
By employing the Graph Model for Conflict Resolution methodology, this paper models and analyzes a brownfield conflict that occurred at the Changzhou Foreign Language School in Jiangsu, China, in 2016. This conflict made national headlines when news repo...
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Matthew J. Satchell, Jeffrey M. Layng and Robert B. Greendyke
The effect of thermal and chemical boundary conditions on the structure and chemical composition of the wake behind a 3D Mach 7 sphere-cone at an angle of attack of 5 degrees and an altitude of roughly 30,000 m is explored. A special emphasis is placed o...
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