Results 21 to 30 of about 7,661,762 (246)

Study on CO2 Emission Characteristics of China VI Heavy Duty Diesel Engine [PDF]

open access: yesE3S Web of Conferences, 2022
CO2 emission control is of great urgency, and the decrease of heavy-duty diesel engines’ CO2 emission is one of the significant methods to reduce CO2 emission. This paper uses a full-flow constantvolume dilution sampling system to experiment on the China
Zhang Mingzhi   +4 more
doaj   +1 more source

Determination of 26 Kinds of Organophosphorus Pesticide Residues in Wheat Germ by Gas Chromatography Method Simultaneously

open access: yesShipin gongye ke-ji, 2023
A gas chromatography method was established to simultaneously detect 26 kinds of organophosphorus pesticide residuesin wheat germ samples, such as dichlorvos, ethoprophos, and cadusafos.
Tingting LI   +6 more
doaj   +1 more source

Feasibility study on mornitoring NOx emissions of China-VI natural gas engines with the NOx sensor [PDF]

open access: yesE3S Web of Conferences, 2022
Based on a heavy-duty stoichiometric natural gas engine which can meet the requirement of China-VI regulations, steady-state and transient cycles were carried out to measure the exhaust NOx concentration out of TWC by a NOx sensor and a gaseous emission ...
Zhang Lin, Chen Xiong, Li Su, Zou Lin
doaj   +1 more source

Test

open access: yesArt/Research International, 2023
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Test
doaj  

Sivas İli 50 Yaş ve Üzeri Bireylerinde Obezite

open access: yesAntropoloji, 2013
Obezite, vücut ağırlığının, bireyin sağlığını tehlikeye sokacak derecede artmasıdır. Bu durum, beslenme koşullarından kaynaklandığı gibi genetik kökenli de olabilir.
Test Kullanıcı   +1 more
doaj   +1 more source

Application of molecular simulation in mobile phase development of HPLC [PDF]

open access: yesE3S Web of Conferences
The selection of mobile phase is significant for the separation result of HPLC, for it may have influence on the quantitative analysis. During HPLC analysis, engineers usually use (water-acetonitrile) mobile phase system to separate aldehydes and ketones,
Wang Yanmeng   +8 more
doaj   +1 more source

Flutter/ASE Flight Test Risk Control Technique of Civil Fly-by-wire Aircraft

open access: yesHangkong gongcheng jinzhan, 2022
The existing research on flight test risk control techniques related to flutter/ASE test is not systematic enough,and has limited consideration of civil fly-by-wire aircraft characteristic and onboard flight test engineer.The flutter/ASE flight test risk
WANG Haigang, ZHANG Shaoyun
doaj   +1 more source

Investigation of methods for measuring fuel economy and emissions of heavy-duty hybrid-electric vehicles (HEVs) [PDF]

open access: yesE3S Web of Conferences, 2022
Hybrid-electric vehicles can achieve low fuel consumption and emission by optimal combination of electrical energy and internal combustion engine power.
Zhao Jianfu   +5 more
doaj   +1 more source

Sustainable future for icing tankers in civil aviation certification [PDF]

open access: yesE3S Web of Conferences
This document summarizes the regulations of civil aviation in terms of icing certifications, and how they affect the flight tests process. To certify a fully new designed aircraft or eVTOLs, chasing the natural icing conditions defined in the regulations
Wu Yunpeng   +3 more
doaj   +1 more source

TEST OJS TEST OJS

open access: yesOENO One, 2020
TEST
Test Test
doaj  

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