Results 1 to 10 of about 14,862,925 (212)

Retention Time Trajectory Matching for Peak Identification in Chromatographic Analysis

open access: yesSensors, 2023
Retention time drift caused by fluctuations in physical factors such as temperature ramping rate and carrier gas flow rate is ubiquitous in chromatographic measurements.
Wenzhe Zang   +3 more
doaj   +3 more sources

Investigation of simultaneous effect of the remaining time, molarity and bacterial solution concentration on shear strength of sandy soils stabilized by bio-cementation method [PDF]

open access: yesمهندسی عمران شریف, 2022
Soil bio-remediation is one of the developing methods of soil improvement and the reduction of environmental problems due to the injection of chemicals in the soil is one of the superior features of this method compared to other common methods.
M. Shahmohammadi, M. Azadi
doaj   +1 more source

Investigating the Effect of Dwell Time on the Physical Properties of Nano-sized Tin dioxide (SnO2) Prepared Through a Continuous Microwave Flow Process

open access: yesPakistan Journal of Analytical & Environmental Chemistry, 2021
Tin dioxide (SnO2) is a well-known catalytic material used to catalyze different organic dyes and gas sensors. Similarly, it is also considered a good sensing and optoelectronic material. In this work, SnO2 has been synthesized using a microwave-assisted
Muhammad Akram   +3 more
doaj   +1 more source

Comparative GC/MS analysis of chemical components in wood extracts of Sweet Locust and False Acacia [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2014
Sweet locust and False Acacia are important species of northern forests region with wood having good durability. In this study, three disks from each species were randomly cut in Nowshahr forest region.
Ramin Vaysi
doaj   +1 more source

Ultra-Low-Voltage UTBB-SOI-Based, Pseudo-Static Storage Circuits for Cryogenic CMOS Applications

open access: yesIEEE Journal on Exploratory Solid-State Computational Devices and Circuits, 2021
Operating CMOS circuits at cryogenic temperatures offers advantages of higher mobility, higher ON-current, and better subthreshold characteristics, which can be leveraged to realize high-performance CMOS circuits.
S. S. Teja Nibhanupudi   +4 more
doaj   +1 more source

Antibacterial Activity and Phytochemical Screening of Garcinia pedunculata Roxb. ex Buch. - Ham. fruit extract by HPLC–ESI-MS

open access: yesJournal of Pure and Applied Microbiology, 2021
Disc and well diffusion methods were used to test the antibacterial activity of methanol extract and ethanol extract of the selected ethnomedicinal plant viz. Garcinia pedunculata Roxb. ex Buch.-Ham.
Zoliansanga, R. Lalfakzuala
doaj   +1 more source

Optimization of mixing speed and retention time affecting biogas production from starchy sediment using response surface methodology [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
The purpose of this research is to investigate the effects of mixing speed (MS) (5-175 rpm) and retention time (RT) (1- 35 days) on biogas production of starchy sediment (SS) that is substantial waste from the modified tapioca starch plants. The AD was
Piyavadee Srivichai, Sakesun Thongtip
doaj   +1 more source

Features of the gas chromatographic method for monitoring the content of phenols in an aqueous medium

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2023
THE RELEVANCE. Phenols are one of the main pollutants of the aquatic environment and have a harmful effect on the human body. Therefore, their determination today is an urgent problem.
A. V. Taneeva   +2 more
doaj   +1 more source

Design, Construction and Production of Small Scale Energy Generation Plant using Indigenous Resources [PDF]

open access: yesIranica Journal of Energy and Environment, 2020
Developing countries like Pakistan are in serious energy crisis. Renewable energy resources are the best alternative for conventional energy sources. The use of indigenous resources to produce bioenergy is an excellent solution to meet the energy needs ...
M. Tamoor   +4 more
doaj   +1 more source

PENETAPAN RETENTION TIME PROGESTERON DALAM PELARUT ELUEN PHASE MOBILE MENGGUNAKAN HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

open access: yesJournal of Basic Medical Veterinary, 2020
The aim of this research was to determine the level of stability of Progesterone-retention time on Eluen Phase Mobile (EPM) solution in storage period for six, eight and 12 hours using High Performance Liquid Chromatography (HPLC).
Evania Haris Chandra   +5 more
doaj   +1 more source

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