Results 21 to 30 of about 7,048,685 (293)

Removal of ammoniacal nitrogen from landfill leachate by irrigation onto vegetated treatment planes [PDF]

, 2002
Leachate is a contaminated liquor resulting from the disposal of solid and liquid wastes at landfill sites that must be treated before discharge. Vegetated leachate treatment planes have been used at landfill sites in the UK but have received little ...
Tyrrel, Sean F., Leeds-Harrison, Peter B., Harrison, K. S.   +2 more
core   +1 more source

Early Prediction of the 2019 Novel Coronavirus Outbreak in the Mainland China Based on Simple Mathematical Model

IEEE Access, 2020
The 2019 novel coronavirus (2019-nCoV) outbreak has been treated as a Public Health Emergency of International Concern by the World Health Organization. This work made an early prediction of the 2019-nCoV outbreak in China based on a simple mathematical ...
Linhao Zhong, Lin Mu, Jing Li, Jiaying Wang, Zhe Yin, Darong Liu   +5 more
doaj   +1 more source

Study on the purification capacity of rain garden paving structures for rainfall runoff pollutants [PDF]

Archives of Environmental Protection, 2022
Rain gardens are one of the best measures for rainfall runoff and pollutant abatement in sponge city construction. The rain garden system was designed and developed for the problem of severely impeded urban water circulation.
Weijia Liu, Qingbao Pei, Wenbiao Dong, Pengfan Chen   +3 more
doaj   +1 more source

Factors affecting successful esophageal foreign body removal using a Foley catheter in pediatric patients [PDF]

Clinical and Experimental Emergency Medicine, 2021
Objective This study aimed to determine the factors that affect successful esophageal foreign body (FB) removal using a Foley catheter and to identify methods to increase the success rate. Methods In this retrospective, cross-sectional study, we included
Donghoon Lim, Jong Kun Kim, Yun Jeong Kim, Yeon Joo Cho, Jae Wan Cho, Jungbae Park, Jae Young Choe, Byung-Ho Choe   +7 more
doaj   +1 more source

Bird Collisions with an Unmarked Extra-High Voltage Transmission Line in an Average Riverine Landscape: An Appeal to Take a Closer Look

Birds
Anthropogenic structures such as overhead powerlines pose potentially high collision risks to flying animals, particularly birds, leading to millions of fatalities each year.
Arno Reinhardt, Moritz Mercker, Maike Sabel, Kristina Henningsen, Frank Bernshausen   +4 more
doaj   +1 more source

Basic study of cleaning effect on metal plate surface using micro-bubble with ultrasonic vibration

Nihon Kikai Gakkai ronbunshu, 2014
A new cleaning method of machine parts using water and micro-bubble with ultrasonic vibration (28 kHz, 100 W) is proposed considering precision of parts and environmental problems. As a specimen, a stainless plate evenly coated with tapping paste is used.
Shigeru AOKI, Katsumi KURITA, Hiroshi IKEDA, Seiji HIRAI   +3 more
doaj   +1 more source

Chemical and biological phosphorus removal in the activated sludge process [PDF]

, 1980
Bibliography: leaves 86-88.This investigation set out to establish in what degree the phosphorus removal characteristics of the Modified Activated Sludge Process could be enhanced by the in-plant addition of iron salts.
Rabinowitz, Barry
core   +1 more source

Comparative Study on the Aerobic Granular Sludge Cultivation and Pollutant Removal Under Two Different Operation Modes

工程科学与技术, 2021
To solve the problem that it takes a long time to cultivate granular sludge under single load or gradually increasing load and the removal of pollutants is unstable.
Jiansheng HUANG, Yinying GUO, Deshao LIU, Shuangkou CHEN, Qiuzhu CHEN, Xin WEN, Haotian ZHENG, Junfeng TAN, Qian TANG   +8 more
doaj  

Building of super high-efficiency processing technology based on innovative concept (Establishment of effective polishing process of SiC substrate using Dilatancy pad tool with bowl feed method)

Nihon Kikai Gakkai ronbunshu, 2015
In this study, we propose innovative polishing method for hard-to-process semiconductor substrate such as SiC. Our innovative polishing method mainly consists of 2 technologies.
Toshiro K. DOI, Kiyoshi SESHIMO, Tsutomu YAMAZAKI, Masanori OHTSUBO, Hideaki NISHIZAWA, Sachi MURAKAMI, Daizo ICHIKAWA, Yoshio NAKAMURA, Tadakazu MIYASHITA, Yoshihide KAWAMURA, Masataka TAKAGI, Hiroshi KASHIWADA, Hideo AIDA   +12 more
doaj   +1 more source

Analysis of Detoxification Effect of Benzo[ a] pyrene in Polymer Modification ofthe Medium Temperature Coal-tar Pitch [PDF]

Zhengzhou Daxue xuebao. Gongxue ban
In order to reduce the content of carcinogenic polycyclic aromatic hydrocarbons in coal asphalt and realize its green application, polyurethane monomer, trioxymethylene, polyethylene glycol, divinyl benzene and epoxyresin were respectively used to react ...
LI Ruixia, LI Jiahui, JIANG Zhifu, ZHANG Yadong, YUE Jinzhao   +4 more
doaj   +1 more source