Results 21 to 30 of about 1,573,268 (222)

Experimental Study on the Desalination of Waste Leachate Using the Combined Freezing Method

open access: yesApplied Sciences, 2023
The current high-salinity wastewater treatment technology is complex, costly, and carries the risk of secondary contamination. As a traditional desalination technology, the combined method using frozen technology has broad development prospects in ...
Xiaokai Wang   +6 more
doaj   +1 more source

Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Environmental test for space hardware is one of the effective way to verify their design and quality. The level of environmental test has been decided empirically based on the development experience of government procurement large satellite of each space
Daisuke TAKAHASHI, Qinzhong SHI
doaj   +1 more source

Graphical analysis of data obtained during environmental test of spring barley varieties (Hordeum vulgare L.) using GGE biplot

open access: yesPlant Varieties Studying and Protection, 2015
Purpose. To use GGE biplot analysis for assessing varia­bility of spring barley varieties yield and identify the most valuable genotypes. Methods. Field, mathematical-and-statistical ones. Results.
П. М. Солонечний
doaj   +1 more source

Investigation of odor emissions from coating products: Key factors and key odorants

open access: yesFrontiers in Environmental Science, 2022
Coating products are widely used for the interior decoration of residential property. However, there is growing concern regarding their odor emissions and their impact on indoor air quality (IAQ).
Yipu Pei   +7 more
doaj   +1 more source

Adsorption Kinetics of Low Mercury Solution with Durian Shell and Activated Carbon

open access: yesYankuang ceshi, 2022
BACKGROUND The direct discharge of Hg(Ⅱ) is harmful to the environment. At present, activated carbon is used to remove it, but the production of activated carbon through high-temperature pyrolysis and activation is very expensive.
ZHAO Zi-ke   +5 more
doaj   +1 more source

Study on applicability of data collection frequency for heavy-duty vehicles based on remote monitoring [PDF]

open access: yesE3S Web of Conferences, 2022
The remote online system of heavy-duty vehicles is composed of vehicle terminal and monitoring platform based on the specified communication protocol, data format and data transmission frequency, which is an important embodiment of heavy-duty vehicle ...
Zhen Kai   +6 more
doaj   +1 more source

Considerations of Utilizing Telemetry and GPS System in Sounding Rockets [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2008
Utilization of the GPS and telemetry systems in sounding rockets are described in this paper. The GPS system is composed of a GPS receiver and its special antennas for this mission.
B. Beheshti Boroumand   +5 more
doaj  

Contrasting effects of a novel biochar-microalgae complex on arsenic and mercury removal

open access: yesEcotoxicology and Environmental Safety, 2023
Biochar and algae were commonly used as environmental-friendly adsorbents to treat wastewater contaminated with heavy metals. In the study, we used a biochar-microalgae complex of Coconut shell activated carbon (Csac) and Chlorella to evaluate and ...
Xiyan Jiang   +6 more
doaj   +1 more source

Filtration Performance Degradation of In‐Use Masks by Vapors from Alcohol‐Based Hand Sanitizers and the Mitigation Solutions

open access: yesGlobal Challenges, 2021
In the current COVID‐19 pandemic, wearing masks and hand disinfection are widely adopted hygiene practices. Alcohol‐based sanitizers are commonly used for hand disinfection, however, the alcohol vapors can dissipate the charges on electrostatic filters ...
Weidong He   +4 more
doaj   +1 more source

Liquid chromatography-tandem mass spectrometry analysis for identification and quantification of antimicrobial compounds in distillery wastewater

open access: yesMethodsX, 2021
A high-resolution mass spectrometry (HR-MS) method was developed to analyze and identify small molecule compounds in distillery wastewater. According to identification confidence levels, 4 levels of compounds were identified.
Waner Hou   +4 more
doaj   +1 more source

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