نتایج جستجو برای: rate spraying

تعداد نتایج: 966731  

The development of aeroponic cultivation technology has led to more efficient use of water and plant nutrients for producing high quality agricultural commodities. In this research, cucumbers were grown in columnar aeroponic systems for nine weeks and the effect of spraying rate and spraying duration on the cucumber average yield and water usage efficiency were investigated. The experiments wer...

2018
Wenfeng Hao

1L spraying reactor with a heat exchanger outside was used to investigate the effect of spraying hydration process on storage capacity of methane in hydrate and on a methane storage rate in hydrate to solve a problem of lower gas molecular transfer rate and worse heat transfer rate. Some results showed that ethanol as a promoter had better spraying hydration rate under the liquid spraying press...

2014
Hyun Seok Lee

chromocolonoscopy using indigo carmine increases the detection of colorectal polyps remains controversial. Additional indigo carmine spraying during cap-assisted colonoscopy is expected to improve the detection rate of colon polyps, especially adenomatous polyps. Therefore, this study aimed to evaluate the usefulness of cap-assisted chromocolonoscopy in the proximal colon for routine colonoscop...

2014
Jaehyeok Song Jonghyuk Song Jong Kim

Heap-spraying is an attack technique that exploits memory corruptions in web browsers. A realtime detection of heap-spraying is difficult because of dynamic nature of JavaScript and monitoring overheads. In this paper, we propose a runtime detector of heap-spraying attacks in web browsers. We build a string trace graph by tracing all string objects and string operations in JavaScript. The graph...

ژورنال: علوم آب و خاک 2009
آجیلی, عبدالعظیم, رضایی مقدم, کورش, صالحی, سعید,

Variable rate technology-spraying technologies are new aspect of sustainable agriculture. In these technologies, the chemical is applied in the needed level of farm where there is a high intensity of pests and weeds. The purpose of this paper was to study the agricultural specialists' attitude toward and intention to use variable rate technology-spraying technologies in Jihad-e-Keshavarzi organ...

آجیلی, عبدالعظیم, رضایی مقدم, کورش, صالحی, سعید,

Variable rate technology-spraying technologies are new aspect of sustainable agriculture. In these technologies, the chemical is applied in the needed level of farm where there is a high intensity of pests and weeds. The purpose of this paper was to study the agricultural specialists' attitude toward and intention to use variable rate technology-spraying technologies in Jihad-e-Keshavarzi organ...

2011
Kaiqun Hu Zetian Fu Ronghua Ji Jun Wang Lijun Qi

Variable rate spraying technology can improve the pesticide utilization ratio, reduce the waste of pesticide, and canopy volume was a very important variable rate reference in orchard spraying, so a variable rate spraying system based on canopy volume measurement was presented and developed. The system was mainly made up of PC, ultrasonic sensor, single chip, flow control mechanism and nozzles....

2017
Zhentao Wang Lin Tian Lei Xia Jingliang Dong Junfeng Wang Jiyuan Tu

The electro-spraying process can be regular and periodic, consisting of cyclical phases of initiation (meniscus, drop, and/or jet), pulsation, deformation and separation. This paper presents an experimental study on the repetition frequency of drop and/or jet ejection from the capillary end with various spraying modes during an electro-spraying process of deionized (DI) water. The influence of ...

2015
Pau San-Valero Josep M. Penya-roja F. Javier Álvarez-Hornos Paula Marzal Carmen Gabaldón

A mathematical model for the simulation of the removal of hydrophilic compounds using biotrickling filtration was developed. The model takes into account that biotrickling filters operate by using an intermittent spraying pattern. During spraying periods, a mobile liquid phase was considered, while during non-spraying periods, a stagnant liquid phase was considered. The model was calibrated and...

2018
John C Rek Victor Alegana Emmanuel Arinaitwe Ewan Cameron Moses R Kamya Agaba Katureebe Steve W Lindsay Maxwell Kilama Sarah G Staedke Jim Todd Grant Dorsey Lucy S Tusting

BACKGROUND Rapid population growth in Africa requires an urgent expansion and improvement of housing options. Improving housing presents a promising opportunity for malaria control by reducing indoor exposure to mosquitoes. We measured recent changes in house design in rural Uganda and evaluated their association with malaria in relation to a mass scale-up of control efforts. METHODS This ana...

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