نتایج جستجو برای: water extraction pattern

تعداد نتایج: 1032116  

2013
Xiaoxia Liang Qiaojia Fan

Sub-critical water extraction is a brand-new separation technology. This paper mainly discussed the principle, advantages of sub-critical water extraction, and its applications ranging from the medicinal plants traditionally used in Europe and Asia to produce pharmaceutical extracts (such as volatile oil, tannins, flavonoids, anthraquinone, lactone, etc.). Meanwhile, the prospect of sub-critica...

Journal: :اقتصاد و توسعه کشاورزی 0
صمد عرفانی فر منصور زیبایی مهدی کسرایی

in this study, the optimal cropping patterns based on individual aims are presented and followed by a multi-objective cropping pattern with emphasize on the use of conservation tillage methods in darab region presented. individual goals consisted of maximizing gross margin and food secin this study, the optimal cropping patterns based on individual aims were presented and followed by using a mu...

2017
Xiaojie Ren Xinhe Zhao François Turcotte Jean-Sébastien Deschênes Réjean Tremblay Mario Jolicoeur

BACKGROUND Microalgae have the potential to rapidly accumulate lipids of high interest for the food, cosmetics, pharmaceutical and energy (e.g. biodiesel) industries. However, current lipid extraction methods show efficiency limitation and until now, extraction protocols have not been fully optimized for specific lipid compounds. The present study thus presents a novel lipid extraction method, ...

2009
Jiancheng Luo Yongwei Sheng Zhanfeng Shen Junli Li

Remote sensing information extraction is the key step of remote sensing application, and water body is one of its main targets. Thus, the automatic and high-precise extraction of water information from remotely sensed images is of great significance and urgently required in research fields of water resources investigation, natural disaster evaluation, even global ecological environment evolutio...

Journal: :iranian journal of toxicology 0
محمود علی محمدی mahmood alimohammadi department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran. مریم محراب بیگی maryam mehrabbegi students' scientific research center, tehran university of medical sciences, tehran, iran. شاهرخ نظم آرا shahrokh nazmara department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran. محسن حقیقی mohsen haghighi dashtappeh department of environmental health engineering, school of public health, kashan university of medical sciences, kashan, iran. وحید کاظمی مقدم vahid kazemi moghaddam department of environmental health engineering, school of public health, kashan university of medical sciences, kashan, iran.

background: bisphenol a (bpa) is one of the hazardous materials causing disruption of endocrine pathways. due to water contamination by this component from multiple sources and the associated health problems, bpa has been the focus of multiple studies. it has been proved that bpa may cause harm because of its impact on estrogenic receptors in human and other organisms. methods: in this study, t...

2011
Christopher O. Akinbile Abimbola Y. Sangodoyin

A two-year dry season experiment was conducted at the research farm of the International Institute of Tropical Agriculture, IITA Ibadan, Nigeria to estimate irrigation water requirements and establish crop water use. Two upland rice varieties (NERICA 2 and NERICA 4) were planted in a randomized complete block design (RCBD). Four treatments based on different water distribution levels were adopt...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1372

a simple, sensitive and selective method for solvent extraction and spectrophotemetric determination of lanthanum (ii) europium (iii), and cerium (iii) is described , the rare earth metals are extracted into chloroform solution of n-phenylbenzohydroxamic acid (pbha) at ph 9-10 various parameters are studied to optimize the extraction conditions. the molar absorptivity is found to increase from ...

Curcumin is a natural bioactive compound originated from the rhizomes of turmeric (Curcuma longa L.). This study was performed to investigate formic acid and microwave assisted extraction of curcumin from turmeric (Curcuma longa L.). In order to enhance the curcumin extraction, different parameters such as particle size, effect of pretreatment with water, radiation intensity and type of solvent...

Journal: :Bioresource technology 2014
Sun-A Choi Joo-Young Jung Kyochan Kim Jin-Suk Lee Jong-Hee Kwon Seung Wook Kim Ji-Won Yang Ji-Yeon Park

In this study, acid-catalyzed hot-water extraction of docosahexaenoic acid (DHA)-rich lipids from Aurantiochytrium sp. was performed, and its yield-enhancing effects were investigated. The total fatty acid content of the Aurantiochytrium sp. was 482.5mg/g cell, of which 141.7mg/g cell (29.4% of total fatty acids) was DHA. The lipid-extraction yield by acid-catalyzed hot-water treatment was comp...

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