Results 21 to 30 of about 1,593,480 (263)

Influence of temperature on the stability of titanium nanocluster in TiCl3 medium [PDF]

MATEC Web of Conferences
South Africa is one of the largest producers of titanium-bearing minerals in the world, accounting for 18% of rutile production and 12% of ilmenite production. However, the country has yet to establish a noticeable advantage in the production of titanium,
Mazibuko Andile, Ngoepe Phuti, Chauke Hasani   +2 more
doaj   +1 more source

Tablet Disintegratability: Sensitivity of Superdisintegrants to Temperature and Compaction Pressure

Pharmaceutics, 2022
Tablet disintegration is an important pre-requisite for drug dissolution and absorption. The disintegration test is typically conducted at 37 °C, but the intragastric temperature may vary due to meals or fever.
Audrey Yi Zheng, Paul Wan Sia Heng, Lai Wah Chan   +2 more
doaj   +1 more source

Bioactivity of imipenem as a function of medium, time, and temperature [PDF]

Antimicrobial Agents and Chemotherapy, 1984
The bioactivity of imipenem at 20 micrograms/ml in various agar and broth media which are commonly used in susceptibility test assays was measured at different storage temperatures over time. Imipenem was found to be more stable at 4 degrees C than at -20 degrees C and least stable in all media at 35 degrees C.
E J, Baron, J A, Hindler
openaire   +2 more sources

Strata temperatures and geothermal resource evaluation in the Dongpu Depression, Bohai Bay Basin, North China

Scientific Reports, 2023
The development of geothermal resources in the Dongpu Depression can improve not only the economic benefits of the oilfield but also the ecological environment. Therefore, it is necessary to evaluate the geothermal resources in the region.
Yong Qiao, Yinhui Zuo, Shiqi Tu, Jiazhen Zhang, Meihua Yang, Tao Zhang   +5 more
doaj   +1 more source

Using the porous medium to improve the forced convective heat transfer in the channel and its numerical analysis with lattice Boltzmann method [PDF]

مجله مدل سازی در مهندسی, 2019
In this paper, numerical analysis of flow and heat transfer in a two-dimensional channel with porous medium and based on the lattice Boltzmann method is performed.
Mohammad Taghilou, jalal ghasemi jalal ghasemi, Mohammad Norouz   +2 more
doaj   +1 more source

Experimental study of a novel downhole heat exchanger utilizing working fluids for enhanced heat exchange

Case Studies in Thermal Engineering
This study designs and assesses a new type of shell and tube downhole heat exchanger (NDHE) equipped with organic working fluid (R32, R134a) to increase the thermal performance of the single well geothermal system.
Dongxi Liu, Di Gu, Wei Zhang, Maoqin Hu, Chuanshan Dai, Lanlan Tian, Shuantong Shangguan   +6 more
doaj   +1 more source

Dynamics of Escherichia coli at elevated temperatures: effect of temperature history and medium [PDF]

Journal of Applied Microbiology, 2007
The dynamics of Escherichia coli near the maximum temperature for growth in a rich medium are analysed. The effects of temperature history, medium composition and physiological state of the inoculum are evaluated.Kinetics of E. coli K12 MG1655 is studied in 'brain-heart infusion' broth in a temperature controlled environment.
E, Van Derlinden, K, Bernaerts, J F, Van Impe   +2 more
openaire   +2 more sources

RNA Stability: A Review of the Role of Structural Features and Environmental Conditions

Molecules
The stability of RNA is a critical factor in determining its functionality and degradation in the cell. In recent years, it has been shown that the stability of RNA depends on a complex interaction of external and internal factors.
Igor V. Kornienko, Olga Yu. Aramova, Anna A. Tishchenko, Dmitriy V. Rudoy, Michael Leonidas Chikindas   +4 more
doaj   +1 more source

Transient heat transfer at fluid flow in a thick-walled pipeline

MATEC Web of Conferences, 2018
The work aims to determine the transient temperature distribution of the medium and the pipeline wall using the finite difference method. Time courses of the temperature of the flowing medium and pipeline walls caused by a step change in temperature of ...
Sobota Tomasz, Taler Dawid, Lubecki Szczepan   +2 more
doaj   +1 more source

Characteristic Analysis for the Medium-High Temperature Daqu Prepared from the 20 Different Wheat Varieties [PDF]

Zhongguo niangzao
A total of 20 wheat varieties (Yangmai 30, Yangmai 36, Yangmai 45, Kenmai 58, Chumai 47, Quanmai 725, Quanmai 838, Wanke 421, Mianmai 907, Mianmai 916, Mianmai 902, Xikemai 8, Xikemai 546, Xikemai 475, Qianmai 18, Qianmai 19, Qianmai 20, Qianmai 21 ...
HE Yangyifan, MA Pan, ZOU Wenhui, LI Chaosu, ZHANG Zhenggang, LIU Zehou, TANG Hao, WANG Qin, YANG Ning, LI Yang, LI Jun, YANG Wuyun, ZHANG Lianquan, WAN Hongshen
doaj   +1 more source