当前世界环境 www.a-i-l-s-a.com 当前世界环境 en - us 不同来源固态生产植酸酶真菌的培养 //www.a-i-l-s-a.com/vol7no1/a-culturing-of-fungi-for-phytase-production-by-solid-state-from-different-sources/ 2012-06-30 2018-12-25 JYOTSNA VIHNUDAS, MALATHI JOJULA, M.A. SINGARACHARYA 卷7,问题1

Introduction A phytase (myo-inositol hexakis phosphate phosphohydrolase) is any type of phosphatase enzyme that catalyzes the hydrolysis of phytic acid (myo-inositol hexakisphosphate) — an indigestible, organic form of phosphorus that is found in grains and oil seeds— and releases a usable form of inorganic phosphorus.1 While phytases had been found to occur in animals, plants, fungi and bacteria, phytases had been most commonly detected and characterized from fun...

在种子饲料中添加植酸酶是提高磷利用率的有效途径。15种不同类型的嗜热真菌,如烟曲霉,曲霉菌属,铅笔菌属,真菌,Helimenthosporium, Fusaruim Throderna根据形态特征和染色方法对其进行了分类,该菌株是从不同地区的堆肥中分离出来的。在所有我< / p >
多媒体环境下儿童发展的演变 //www.a-i-l-s-a.com/vol7no1/evolution-of-child-development-in-the-multimedia-environment/ 2012-05-22 2018-12-25 ASHVINI JOSHI, VINITA BHATNAGAR 卷7,问题1

Introduction Education is not preparation for life; education is life itself. The time it takes to earn the degree in education today is based on an increasingly outdated model: so many hours in a classroom entitle a student to a receipt in the form of a grade, and so many receipts can be redeemed for a credential in the form of a degree... Education today is just beginning to think of shifting the basis of certification from time served to skills and knowledge obtained. Multimedia hold...

< p > < / p >
罗赫塔羚对一种生物农药和nem - onandrdquo的急性毒性和行为反应 //www.a-i-l-s-a.com/vol7no1/acute-toxicity-and-behavioural-responses-of-labeo-rohita-hamilton-to-a-biopesticide-neem-on/ 2012-02-29 2018-12-25 Imtiyaz bhat, bilal bhat, santosh vishwakarma, alok verma, geeta saxena 卷7,问题1

Introduction Neem (Azadirachtin indica) is a traditional and highly esteemed medicinal tree for the people of Indian sub-continent.It is one of the most promising medicinal plant, having a wide spectrum of biological activity, well known for its insecticidal properties (ICAR, 1993). Biological activities and medicinal properties of neem have been extensively reviewed by Biswas et al (2002). Azadirachtin (a tetranotriterpenoid) is one of the major components (Kraus et al., 1981; Broughton et a...

本研究的目的是测定印楝生物杀虫剂印楝素(neem - on, Brand name)对淡水鱼Labeo rohita的毒性。用不同浓度的植物性杀虫剂印扎菌素处理鱼类96 h,记录其死亡率。用Finney&rsquo;s Probit分析法测定的96h LC50值为42.66 ppm。在整个实验过程中,对行为模式进行了批判性的观察。测试鱼< / p >
Jamshedpur和Ghatsila附近Swarnarekha河底层沉积物金属污染的研究 //www.a-i-l-s-a.com/vol7no1/studies-in-rivers-bottom-sediments-in-swarnarekha-river-around-jamshedpur-and-ghatsila-for-metallic-pollution/ 2012-06-13 2018-12-25 H. Mishra, S. Jha 卷7,问题1

Introduction The chemical composition of the bottom sediments and its variation of different sites in the river Swarnarekha receiving the treated and untreated waste water from domestic and industrial sources have a profound impact on the water quality of the river basin. Water chemistry only assesses the effluent impact at the time of sampling while the bottom sediments geo-chemistry gives a cumulative assessment of pollution. Bottom sediments analysis has been used to trace pollutant inputs...

2012年2月至2012年3月,在贾坎德邦东辛格布姆的詹谢普尔和加茨拉钢铁厂周围的河流和废水排放样本中进行了重金属铁、铬、锰、钴、镍、铜、锌、镉和铅等污染物的研究。采用原子吸收分光光度法对底泥非滤失残渣中重金属进行了分析。吸附和/或离子交换性,ox

合成杀虫剂敌敌畏和印楝杀虫剂对拉比奥罗赫塔的毒性比较研究(汉密尔顿) //www.a-i-l-s-a.com/vol7no1/a-comparative-study-on-the-toxicity-of-a-synthetic-pesticide-dichlorvos-and-a-neem-based-pesticide-neem-on-to-labeo-rohita-hamilton/ 2012-03-31 2018-12-25 Bilal Bhat, Imtiyaz Bhat, Santosh Vishwakarma, Alok Verma, Geeta Saxena 卷7,问题1

Introduction Increased used of pesticide results in the excess inflow of toxic chemicals, mainly in to the aquatic ecosystem (Baskaran et al., 1989; Kalavanthy et al., 2001). The aquatic environment is currently under threat by the indiscriminate use of synthetic pesticides by the human activities and causing high risk to non-target organisms (Kumar et. al., 2010). Among different classes of pesticides, organophosphates are more frequently used, because of their high insecticidal property, lo...

鱼和其他生物受到农药的影响,这些农药通过农业径流污染了自然水。鱼类是水污染的常见生物指标。本研究分别对合成农药敌百虫和植物源天然农药Neem-On进行了生物测定。毒性试验所得数据采用Probit分析统计方法进行评价。敌敌畏和Neem-On的96h LC50分别为16.71ppm和42.66ppm。< / p >
贾尔冈区(马哈拉施特拉邦)Chalisgaon Taluka北部地区地下水质量的季节变化 //www.a-i-l-s-a.com/vol7no1/seasonal-variation-in-ground-water-quality-at-north-zone-of-chalisgaon-taluka-dist-jalgaon-maharashtra/ 2012-06-29 2018-12-25 P.J PARMAR 卷7,问题1

Introduction From the literature survey it is known that no investigation has been done on the quality of underground water in Chalisgaon Taluka of Jalgaon District of Maharashtra State. Seven villages are selected for this study situated in North - East of the Jalgaon district on the right bank of Girna river at a distance of 12 Kms from Chalisgaon town on state highway No. 211. The area under investigation is a notable cotton, sugarcane &amp; banana producing centres and all the crop fi...

本研究评估了马哈拉施特拉邦贾尔冈地区Chalisgaon Taluka周围地下水的物理化学特征。这项研究是为了研究其饮用、灌溉和工业用途的适宜性。快速的城市化进程造成了地下水的污染,由于地下水的过度开采和垃圾处理不当,影响了地下水的可用性和质量。径流肥料等人类活动引起的地下水污染

冬季果实中农药残留分析 //www.a-i-l-s-a.com/vol7no1/analysis-of-pesticide-residues-in-winter-fruits/ 2012-06-25 2018-12-25 RAVI KANT KANNAUJIA, CHITRA GUPTA, FAROOQ WANI, ROHIT VERMA 卷7,问题1

Introduction A pesticide is a chemical substance used for preventing, destroying, repelling or mitigating a pest, which can be an insect; rodent, bind, weed or fungus, as well as micro organism like bacteria and viruses. Pesticides can be broadly classified as insecticides, herbicides, fungicides, rodenticides, and antimicrobials, with many subclasses. The major insecticide groups are the organochlorines, organophosphates, carbonates and pyrethroids. Pesticides are considered hazardous chemic...

水果样品的冬季水果(苹果,葡萄,香蕉cheeku,木瓜,柠檬)农药残留采用多残留分析气相色谱。所有水果样本均显示有一种或另一种农药残留。有些样品超过了定量限度。从微生物学的观点来看,对水果样品中农药的日益关注是合理的。本文研究了农药在水果样品上的迁移。在9种杀虫剂中t

博帕尔沙普拉湖水质理化研究及其边缘地区地下水污染效应 //www.a-i-l-s-a.com/vol7no1/physico-chemical-studies-of-water-quality-of-shahpura-lake-bhopal-m-p-with-special-reference-to-pollution-effects-on-ground-water-of-its-fringe-areas/ 2012-04-18 2018-12-25 TRIVEDI SONAL, H. KATARIA 卷7,问题1

Introduction Fresh Water is essential to existence of life. Water of acceptable quality is essential not only for drinking and domestic purposes but also for agriculture, industrial and commercial uses. Surface water is collection of water on the ground or in a stream, river, lake, wetland, or ocean. Surface water is naturally replenished by precipitation and naturally lost through discharge to evaporation and sub-surface seepage into the groundwater. A lake is a large body of water surrounde...

滥用和浪费水的消耗和不适当的废物处理做法已经导致了地表水或地下水水质的恶化。Shahpura是一个内陆城市地表水,由邻近的Shahpura和Chunabhatti镇的博帕尔城市废水和废水提供水源,从而转化为一个受污染的湖泊。这是首次尝试强调被污染的地表水扩散到支持饮用水供应的地下水含水层
德拉敦市污水中污染物的理化测定 //www.a-i-l-s-a.com/vol7no1/physicochemical-determination-of-pollutants-in-wastewater-in-dheradun/ 2012-05-18 2018-12-25 Sachchida singh, gaurav srivastav, arun bhatt 卷7,问题1

Introduction Heavy metals are present in food in very minute quantities; the existence is due to their role in body metabolism, it has been establish that whatever is taken as food might cause metabolic disturbance if it does not contain the permissible upper and lower limits of heavy metals. Thus, both deficiency and excess of essential micro-nutrients (iron, zinc and chromium) may produce undesirable effects (Konofal et al., 2004; Kocak et al., 2005). Effect of toxic metals on human health ...

Wastewater was collected from the Dheradun industrial area situated in capital of uttrakhand. Samples were collected between the periods of November 2010 to Aug.2011 determine the following parameters, pH, temperature, turbidity, chemical oxygen demand (COD), Biological oxygen demand(BOD), dissolved oxygen (DO), conductivity, total dissolved solid (TDS), total suspended solid (TSS), sulphate, nitrate, nitrite and phosphate. In addition, metals (copper, cobalt Chromium, iron, manganese, magnes

与电池、电源和金属电镀废水有关的水体的物理化学特性 //www.a-i-l-s-a.com/vol7no1/physico-chemical-characterization-of-water-body-with-special-reference-to-battery-power-sources-and-metal-plating-effluents/ 2012-04-24 2018-12-25 DHANANJAY DWIVEDI, VIJAY CHOUREY 卷7,问题1

Introduction The life on the earth depends on the water. Everything originated in the water and sustain by water. It is most common abundant, indispensable, inorganic component of the earth&rsquo;s environment, constitutes living matter predominantly. It is a prime resource and physiological necessity to mankind. This work include the sample collection technique, collection, preservation and handling of collected sample. The collected samples were analyzed for the determination of Phys...

世界正面临着一系列巨大的环境问题,这些问题是由于不同领域的先进工业化所产生的地下水污染和有害废物排放的过程工业。因此,纠正这个问题是必要的。< / p >
医院生物医学废弃物管理系统的需求-一个新问题-综述 //www.a-i-l-s-a.com/vol7no1/need-of-biomedical-waste-management-system-in-hospitals-an-emerging-issue-a-review/ 2012-05-30 2018-12-25 PRAVEEN MATHUR , SANGEETA PATAN , ANAND SHOBHAWAT 卷7,问题1

Introduction Biomedical waste management has recently emerged as an issue of major concern not only to hospitals, nursing home authorities but also to the environment. the bio-medical wastes generated from health care units depend upon a number of factors such as waste management methods, type of health care units, occupancy of healthcare units, specialization of healthcare units, ratio of reusable items in use, availability of infrastructure and resources etc.1 The proper management of bi...

医疗保健对我们的生命和健康是至关重要的,但医疗活动产生的废物代表了生活的自然和人类世界的一个现实问题。卫生保健设施产生的废物管理不当会对社区、卫生保健工作者和环境造成直接的健康影响。每天,世界各地的卫生保健医院和设施都会产生相对大量的潜在传染性和危险废物。任意处置B

德里实施压缩天然气后的空气污染物状况 //www.a-i-l-s-a.com/vol7no1/status-of-air-pollutants-after-implementation-of-cng-in-delhi/ 2012-04-13 2018-12-25 PALLAVI SAXENA, RICHA BHARDWAJ, CHIRASHREE GHOSH 卷7,问题1

Introduction Clean air is considered to be a basic requirement of human health and for the well-being. However, air pollution continues to pose a significant threat to health worldwide (WHO 2005). The state of air pollution is often expressed as Air Quality (AQ). Air pollution has implications in a number of contemporary issues including: human health, (e.g. respiratory, cancer, allergies.), ecosystems (e.g. crop yields, loss of biodiversity), national heritage (e.g. buildings), and regional ...

每年有590多万人死于空气污染,其中90%以上的死亡发生在印度首都德里。为了改善德里的空气污染状况,政府实施了各种政策和法律。但即使在实施CNG后,氮氧化物、O3、SPM、RSPM和amp;公司除二氧化硫。我们研究的目的是CNG转换是否影响主要污染物和对流层臭氧污染利润

不同材料球磨过程几何效应的研究与分析及球磨过程的力与应变评估 //www.a-i-l-s-a.com/vol7no1/study-and-analysis-of-geometric-effect-of-ball-burnishing-process-of-different-materials-and-evaluation-of-forces-and-strain-for-ballizing-process/ 2012-06-23 2018-12-25 Pawan Upadhyay, A. Ansari, Pankaj Agarwal 卷7,问题1

Introduction Geometrical Effects When the ball passes through undersized hole, plastic deformation (ip) takes place, this plastic deformation of the hole may be due to many variables. It has been confirmed experimentally that interference (if) and plastic deformation (ip) have got a linear relationship i.e. they are proportional to each other. If deviation is defined as the difference of ball diameter and hole diameter after ballizing the experiment also establishes that this deviation ...

这一过程包括强迫一个超大的硬材料球通过预加工的孔在软材料。球和孔之间的干涉导致孔扩大,使其变形部分是塑性的,部分是弹性的。压丸后,孔的弹性变形由于弹回而得到恢复,而塑性变形则导致孔直径永久小幅增加。磨球或压球是impr

的一种生产工艺
一种N, Nandrsquo;-双(2-羟基和α -甲基亚苄基)异丁基二胺硝酸铀酰[UO2 (HMBUD)]2+的合成、表征和热研究 //www.a-i-l-s-a.com/vol7no1/synthesis-characterization-and-thermal-studies-of-a-n-n-bis2-hydroxy-alpha-methyl-benzylidene-isobutyl-diamine-uranyl-vi-nitrate-uo2-hmbud2/ 2012-03-31 2018-12-25 SHAHRIAR GHAMMAMY, SAJJAD SEDAGHAT 卷7,问题1

Introduction The coordination chemistry of transition metals with ligands from the uranyl family hasbeen of interest due to different bonding modes shown by these ligands with both electron rich and electron poor metal. In principle, the central transition metal atoms of different soft and hard Lewis acidity usually need to be satisfied in the most suitable fashion.Schiff base metal complexes have been widely studied because they have industrial, antifungal, antibacterial, anticancer and herb...

合成了

N, N&rsquo;-双(2-羟基&ndash; - α -甲基亚苄基)异丁基二胺,简称HMBUD。以UO2(NO3)2.6H2O的硝酸盐与HMBUD反应制备了N, N -双(2-羟基- α -甲基亚苄基)异丁基二胺硝酸铀酰(VI)。本研究合成了一些无机铀酰N给体配合物。配合物通过FT-IR、UV、&sup1;HNMR、&sup1;&sup3;CNMR

表征
扎扬德鲁德河重金属污染水平检测及山毛榉树叶清理 //www.a-i-l-s-a.com/vol7no1/detecting-the-level-of-contaminations-caused-by-heavy-metals-in-the-zayandeh-roud-river-and-clean-up-by-leaves-of-beech-tree/ 2012-05-31 2018-12-25 MOHAMMAD KARIMI 卷7,问题1

Introduction Contamination of heavy metals causes a serious problem for health and generally for man&rsquo;s life. Discharge of these metals is caused as the result of several activities such as production of chemicals, dyeing, plastering, mining activities, extractive metallurgy, nuclear activities and other industries. These metals have a destructive effect on the animals, lakes and rivers (Sayeri, Hamoudi, &amp; Yang, 2005). Human activities such as urban and industrial sewages as ...

Zayandeh Roud是伊朗中部最重要的河流之一。它发源于寇朗山脉。这条河穿过查哈尔马哈尔&Bakhtiari和Esfahan省,最后流入Gavakhouni池塘。这条河的水用于农业、工业和饮用水。重金属污染水平的测定是重要的,对控制其环境生态条件具有重要作用
基于汽车模型的汽车尾气排放因子研究 //www.a-i-l-s-a.com/vol7no1/investigation-of-exhaust-emission-factors-based-on-vehicle-models/ 2012-06-15 2018-12-25 Farnaz Takizad 卷7,问题1

Introduction Emissions of many air pollutants have been shown to have variety of negative effects on public health and the natural environment . Emissions that are principal pollutants of concern include: Hydrocarbons, Carbon monoxide(CO), Nitrogen oxides (NOx), Particulate matter, Sulfur oxide (SOx), Volatile organic compounds (VOCs). hydrocarbons are toxins. Hydrocarbons are a major contributor to smog, which can be a major problem in urban areas. Carbon Monoxide poisoning is also a major k...

伊朗生产的乘用车的碳氢化合物和一氧化碳排放量非常高。该研究试图对2004年、2006年和2008年生产的三款车型(Pride、标致206和Samand)进行技术检查,检查HC和CO排放量。采用MGT5装置对该车的尾气排放因子进行测量。研究结果表明,2006年生产的Pride和206型标致以及2004年生产的Samand污染最为严重
基于果胶的新型pH-盐响应高吸水性水凝胶的合成与研究 //www.a-i-l-s-a.com/vol7no1/synthesis-and-investigation-of-a-novel-ph-and-salt-responsive-superabsorbent-hydrogel-based-on-pectin/ 2012-04-18 2018-12-25 Mohammad Sadeghi, Esmat Mohammadinasab, Fatemeh Shafiei 卷7,问题1

Introduction Highly swelling polymers, i.e. super absorbent hydrogels, are hydrophilic, three dimensional networks that can absorb water in the amount from 10% up to thousands of times their dry weight. They are widely used in various applications such as hygienic, foods, cosmetics, and agriculture.1&nbsp;This accounts for increase in the worldwide production of superabsorbent polymers (SAPs) from 6000 tons in 1983 to 450000 tons in 1996.2-4&nbsp;Nowadays, the worldwide production of ...

本文研究了以果胶(Pec)和聚丙烯酸(PAcA)为基础的高吸水水凝胶的合成和溶胀行为。以过硫酸铵(APS)为引发剂,亚甲基双丙烯酰胺(MBA)为交联剂,采用自由基聚合技术将丙烯酸(AcA)接枝到果胶骨架上。提出了水凝胶形成机理,并用红外光谱和扫描电镜建立了产物的结构
新型四甲基三铵盐晶体参数与振动数据的相关性 //www.a-i-l-s-a.com/vol7no1/correlation-of-crystal-parameter-with-vibrational-data-of-new-three-tetramethylammonium-salts/ 2012-03-29 2018-12-25 S ghammamy sadjad sedaghat h sahebalzamani 卷7,问题1

Introduction Tetramethylammonium compounds have many applications in science and biology. It is extremely difficult, if not impossible, to prepare single crystals of tetramethylammonium salts suitable for diffraction studies; the available methods of preparation give microcrystalline powders that are not suitable for X-ray single crystal diffraction. Scientists&rsquo; effort to find and use simple substituted methods for studying crystal habits of tetramethylammonium salts. One of the sug...

对四甲基铵盐的红外光谱分析表明,红外光谱性质与C&ndash;H&middot;&middot;&middot;X氢键和晶体习性有关。红外预测的晶体习惯由实验数据和理论数据组成。已发现三个数据之间有很好的关系。上述盐类的C& H拉伸区发生氢键转变。在< / p > 哈马丹地区石榴石变质岩、分带及等分线研究 //www.a-i-l-s-a.com/vol7no1/the-study-of-metamorphic-rocks-zonation-and-isogrades-in-garnet-rocks-in-the-hamadan-area/ 2012-04-18 2018-12-25 ZAHRA HOSSEIN MIRZAEI BENI, ZOHREH HOSSEIN 卷7,问题1

Introduction Garnet crystallizes in cubic system and mostly in dodecahedron (rhomb-dodecahedron) and trapezohedron (tetragon-trioctahedron) crystal forms. General chemical formula of this mineral is: R3R&rsquo;2(SiO4)3, which bivaliant cations (i.e. Mg2+, Fe2+, Mn2+, Ca2+) lie in R site and trivaliant cations (i.e. Al3+, Cr3+, Fe3+) in R&rsquo; site. Commonly, more than one cation lies in R and R&rsquo; sites and therefore garnet crystals give rise to isomorphous (solid solution) ...

研究区属于萨南杰-锡尔詹变质带的一部分。将哈马丹变质岩划分为区域变质岩、接触变质岩和混合岩三大类。在本区还不能完全划分接触分带和区域变质分带。在接触变质对区域变质影响程度较低的部分地区,接触变质分带明显,但当接触变质与区域变质程度相同或

时,接触变质分带明显
二次锌工业废饼的应用潜力研究 //www.a-i-l-s-a.com/vol7no1/study-on-application-potential-of-waste-cake-from-secondary-zinc-industry/ 2012-06-12 2018-12-25 Mohd Khan, Rajnish Shrivastava 卷7,问题1

Introduction The rapid industrialisation has lead to severe environmental threats through generation of large quantities of industrial wastes and hazardous sludges. The primary sources of hazardous wastes in India and other developing countries include waste generated within the country through different industrial units and waste imported into the country as raw materials. A study carried out on solid waste management in non-ferrous industries in India mentions alarming levels of hazardous s...

锌提取工艺在回收电解级锌和铜的过程中会产生危险的废饼。废弃物的特性与基本性质如可燃性、腐蚀性、反应性和极压毒性是决定废弃物危害程度的重要参数。研究所涉及的废物属危险废物附表i(管理及处理)规则,2003。对

>进行了渗滤液毒性特性试验(TCLP)
素质与现状的定位在工业管理 //www.a-i-l-s-a.com/vol7no1/the-position-of-word-quality-in-industrial-management/ 2012-05-30 2018-12-25 Farkhunda Sayyed, Shoyeb Sayyed, Mujahida Sayyed 卷7,问题1

Introduction The most important word in the progress of any industry is quality. By quality we mean an attribute of the product determines its fitness for use. The range of these attributes is pretty wide &ndash; Physical, Chemical, aesthetic etc. A product may have several aspects of quality as well as an over all quality which is something more than the sum of its individual quality aspects. Quality means a level which in turn, depends on four M&rsquo;s besides many other factors wh...

本文从工业管理的角度探讨了质量的概念。< / p >
印度马哈拉施特拉邦Ahmednagar地区Sangamner地区土壤矿物学和结构特征 //www.a-i-l-s-a.com/vol7no1/mineralogical-and-textural-characteristics-of-soils-from-sangamner-area-ahmednagar-district-maharashtra-india/ 2012-06-15 2018-12-25 K. K. DESHMUKH 卷7,问题1

Introduction Soil is a dynamic and complex system of air, water, decomposing organic matter, living plants and animals. In addition to this, soil consists of rock fragments, clays, sands and silts organized into definite pattern as dictated by environmental conditions. The major factors involved in the process of soil formation are parent material, climate, time, topography and biota.1&nbsp;These factors are influencing the mineralogical, mechanical and chemical properties of soils. The p...

对马哈拉施特拉邦Ahmednagar地区Sangamner地区的土壤矿物学和质地特征进行了研究,以了解土壤肥力状况。为此,从该地区收集的62个表层土壤样品中测定了粒径分布。代表性的10个粘土组分样品通过x射线衍射分析进行矿物学表征。粘土派系被发现以伊利石为主,伊利石通常有利于d

印度安得拉邦Tirupati附近的Renigunta饮用水的化学性质及其对人类健康的影响 //www.a-i-l-s-a.com/vol7no1/chemical-properties-of-drinking-water-of-renigunta-near-tirupati-andhra-pradesh-india-and-its-impact-on-human-health/ 2012-03-15 2018-12-25 S.V Dorairaju, C. Rao, M. Raju, P.V. Chalapathi 卷7,问题1

Introduction The quality of drinking water is vital concern for mankind since it is directly linked with human health. People of rural areas located around Tirupati are mainly dependent on ground water for drinking and other domestic needs. Thus, in this paper an attempt was made to assess the physico chemical analysis of drinking water in the view of health of human beings living in this area. Experimental Drinking water of different polluted locations at Renigunta area near Tirupati w...

本文试图评估饮用水质量对居住在印度安得拉邦蒂鲁帕蒂附近的工业区里尼昆塔居民健康的影响。采集了来自Renigunta 40个不同地点的饮用水样品,分析了pH、硬度、碱度、钙、镁、铁、硝酸盐、氯化物、硫酸盐、电导率、总固体(TS)、总溶解固体(TDS)、总悬浮物(TSS)、溶解性等理化参数
多媒体:课堂教学过程中的一种技术 //www.a-i-l-s-a.com/vol7no1/multimedia-a-technique-in-teaching-process-in-the-classrooms/ 2012-05-30 2018-12-25 ASHVINI JOSHI 卷7,问题1

Introduction The population of student learning English as a foreign language has been steadily increasing from year to year. To succeed in college, these students must develop not only linguistics, but also academic skills. These skills involve using English to acquire and articulate knowledge by reading academic texts, writing acceptable academic prose, conducting and reporting research. In Indonesia, English is taught in schools since the students go to Junior high schools. However, many o...

提高学生素质的方法之一是提高学生素质。满足学术需求并帮助他们发展英语语言技能是在教学和学习过程中提供多媒体在课堂上。多媒体课堂为学生提供了与各种文本互动的机会,使他们在大学主流课程的任务和内容上有了坚实的基础。本文旨在找出在课堂上使用多媒体的一些优点。此外,包括< / p >
反渗透预处理:Shupramant-Giza地下水淡化厂除铁—一个案例研究 //www.a-i-l-s-a.com/vol7no1/reverse-osmosis-pretreatment-removal-of-iron-in-groundwater-desalination-plant-in-shupramant-giza-a-case-study/ 2012-05-24 2018-12-25 阿赛义德·阿里,马哈茂德·卡迈勒,a·汉迪,哈立德·穆罕默德,穆罕默德·阿巴斯 卷7,问题1

Introduction Due to recent developments in membrane technology, the trend in the desalination industry is to use reverse osmosis (RO) for desalting seawater. Brackish water (BW) desalination using membrane technology is also expanding as the salinity of groundwater increases. Selecting an appropriate process to meet specific needs at specific locations is essential though the biggest challenge remains in the capability to successfully operate these plants once installed due to peculiarities o...

由于反渗透膜性能的最新改进和与热淡化相比成本的降低,反渗透(RO)在世界范围内越来越多地用于海水淡化。本文采用不同介质和化学药剂对位于Shupramant-Giza的地下水反渗透装置进行除铁,以防止膜污染。目的是介绍反渗透装置运行的现场结果,以评估该t

的可靠性
遮阳网在不同灌溉剂量下对柑橘园的节水作用 //www.a-i-l-s-a.com/vol7no1/shading-nets-usefulness-for-water-saving-on-citrus-orchards-under-different-irrigation-doses/ 2012-04-16 2018-12-25 A. Aboutallah, R. Salghi, A. Fadl, B. hamouti, A. Zarrouk, A. Atraoui, Y. Ghnizar 卷7,问题1

Introduction Water uptake for agriculture is very intensive in Souss Massa region (521Mm3 per year), where irrigation waters are almost exclusively pumped from the water table which is being depleted by 2 to 3 meter per year.1&nbsp;The climate is very arid with rainfall of about 150-200 mm/year concentrated in winter and Evapotranspiration (ETo) of 1800 mm/year with more than 7 mm/day in the Summer, average winter temperatures can reach 5-7&deg;C whereas average summer temperatures ca...

为了在不影响柑桔生理状态和果树性能的前提下节水,本研究比较了亏缺灌溉和遮荫网对柑桔生长和果实掉落的影响。第一剂量(100%)采用参考蒸散量(ETo -气象站计算)和作物系数(Kc)计算,作物系数随生理阶段变化;第二种是双剂量(200%),第三种是半剂量(50%);本研究表明,ap

温度和湿度对沙特阿拉伯西部昆富达地区黄斑蚧(瓢虫科:鞘翅目)种群丰度的影响 //www.a-i-l-s-a.com/vol7no1/effect-of-temperature-and-humidity-on-the-population-abundance-of-spotted-oriental-cucumber-beetle-epilachna-chrysomelina-f-coccinellidae-coleoptera-in-al-qunfudah-western-saudi-arabia/ 2012-06-25 2018-12-25 Saleh Al-Digail, Ahma Assagaf, Jazem Mahyoub 卷7,问题1

Introduction The spotted oriental cucumber beetle E. chrysomelina (F.) is a notorious pest feeding on many vegetable crops and attacks its most preferred plants specially members of the family Cucurbitaceae like pumpkin, sweet gourd, bitter gourd, cucumber, Cucumis mello, Cucurbita pepo and Citrullus lanatus (Talhoq, 1982). The pest damages in adult and larval stages during all vegetation of host plants. It damages mainly melons, cucumbers, pumpkins, and vegetable marrows. Watermelon is da...

甜瓜瓢虫(Epilachna chrysomelina,鞘翅目:瓢虫科)是以瓜类植物为食的主要植食性昆虫之一。大肠chrysomelina被认为是经济在农业害虫是一种multi-habitat昆虫广泛分布在世界各地,也是流行沙特南部和西部海岸由于丰富的葫芦植物(野生和驯化)经过四个发展阶段。在这个r < / p > 从德黑兰高速公路的交通流量估算空气污染 //www.a-i-l-s-a.com/vol7no1/air-pollution-estimation-from-traffic-flows-in-tehran-highways/ 2012-02-22 2018-12-25 凯凡·赛义卜,玛丽安·马勒扎德,赛义德·卡达尔 卷7,问题1

Introduction Motor vehicles emit nitrogen oxides (NOx), carbon monoxide (CO), volatile organic compounds (VOC) and particulate matter (PM), which constitute a major source of air pollution in large cities. To achieve sustainable development and a sustainable transport we need a tool to evaluate projects related to transportation, with good accuracy and in numerical form. With increasing traffic and the increases in pollutants, Human will be in risk from environmental issues that impacts of th...

城市地区面临着增加的空气污染,因为不断城市化,扩大使用车辆和经济活动的发展。在这项研究中,污染物一氧化碳浓度在德黑兰高速公路内进行了分析和模拟。在这方面,根据德黑兰五个站的几何、大气和交通数据分析了影响大气污染物浓度的因素,最后根据现有方法运行模型。模型< / p >