Results 21 to 30 of about 20,829,679 (312)
Relativistic Effects in Chemical Systems [PDF]
Annual Review of Physical Chemistry, 1985 Although the velocity of light c is finite in the real world, most calculations of theoretical chemistry make the approximation c = 00. This is usually a satisfactory approximation for systems of light atoms H, C, N, 0, etc, and for most properties of chemical interest.
Christiansen, P.A. +2 more
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How do chemical fertilizer reduction policies work? —Empirical evidence from rural china
Frontiers in Environmental Science, 2022 China has issued a series of policies to regulate the usage of chemical fertilizer. Are these policies effective? If so, how do they work? To answer the above questions, this study empirically analyzed the effects of different types of policies ...
Yurong Yang +4 more
doaj +1 more source
Dependence of cavitation, chemical effect, and mechanical effect thresholds on ultrasonic frequency.
Ultrasonics sonochemistry, 2017 Cavitation, chemical effect, and mechanical effect thresholds were investigated in wide frequency ranges from 22 to 4880kHz. Each threshold was measured in terms of sound pressure at fundamental frequency. Broadband noise emitted from acoustic cavitation
Tam Thanh Nguyen +3 more
semanticscholar +1 more source
Geophysical Research LettersThe eruption of the Hunga Tonga‐Hunga Ha'apai volcano on 15 January 2022 was one of the most explosive eruptions of the last decades. The amount of water vapor injected into the stratosphere was unprecedented in the observational record, increasing the ...
I. Wohltmann +3 more
semanticscholar +1 more source
Effect of H2/CO addition on soot formation in ethylene diffusion flame
Frontiers in Energy ResearchCoupling the San Diego gas phase reaction mechanism and the Moss Brookes soot model using FLUENT14.0 software, the effect of adding H2/CO on the fuel side on soot formation in an ethylene/air laminar diffusion flame was studied.
Yindi Zhang +7 more
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Investigating the effect of some insecticides on Pulvinaria aurantii Ckll. and its predator, Cryptolaemus montrouzieri Mulsant [PDF]
نامه انجمن حشرهشناسی ایران, 2019 The orange pulvinaria scale, Pulvinaria aurantii Ckll. is the most important scale of citrus in the northern Iran. The lethal effects of chlorpyrifos, pyripropoxyfen, acetamiprid and palazin, alone and in combination with emulsifying oil, were evaluated ...
M. F. Hallaji Sani +4 more
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Journal of Petroleum Exploration and Production Technology, 2020 Enhanced oil recovery (EOR) processes have a great potential to maximize oil recovery factor of the existing reservoirs, where a significant volume of the unrecovered oil after conventional methods is targeted.
A. Belhaj +5 more
semanticscholar +1 more source
Relating Substructures and Side Effects of Drugs with Chemical-chemical Interactions [PDF]
Combinatorial Chemistry & High Throughput Screening, 2020 Background:Drugs are very important for human life because they can provide treatment, cure, prevention, or diagnosis of different diseases. However, they also cause side effects, which can increase the risks for humans and pharmaceuticals companies. It is essential to identify drug side effects in drug discovery. To date, lots of computational methods
Bo Zhou +7 more
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Effect of Chemical and Non-chemical Management Approaches in Controlling Wheat Blast
Fundamental and Applied Agriculture, 2022 Wheat blast caused by Magnaporthe oryzae Pathotype triticum (MoT) becomes one of the common nuisances to the expansion of wheat production in Bangladesh That's why to find out a suitable control measure, fourteen chemicals and five Trichoderma ...
Tazrin Akter +5 more
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Predicting Chemical Toxicity Effects Based on Chemical-Chemical Interactions
PLoS ONE, 2013 Toxicity is a major contributor to high attrition rates of new chemical entities in drug discoveries. In this study, an order-classifier was built to predict a series of toxic effects based on data concerning chemical-chemical interactions under the assumption that interactive compounds are more likely to share similar toxicity profiles.
Lei Chen +5 more
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