نتایج جستجو برای: composite soil

تعداد نتایج: 301236  

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2014
Oluwatoyin T Adetunde Graham A Mills Kehinde O Olayinka Babajide I Alo

Soils from 12 sites in Lagos area, Nigeria impacted by anthropogenic activities were extracted by ultrasonication and analysed for the concentration of 16 priority polycyclic aromatic hydrocarbons (PAHs) by gas chromatograph-mass spectrometer (GC-MS). The concentration of the sum of PAHs ranged from 0.2 to 254 μg/g at these sites. The sum benzo[a]pyrene-equivalent dose (BaPeq) at the sites rang...

Journal: :Remote Sensing 2014
Phutchard Vicharnakorn Rajendra P. Shrestha Masahiko Nagai Abdul P. Salam Somboon Kiratiprayoon

Savannakhet Province, Lao People’s Democratic Republic (PDR), is a small area that is connected to Thailand, other areas of Lao PDR, and Vietnam via road No. 9. This province has been increasingly affected by carbon dioxide (CO2) emitted from the transport corridors that have been developed across the region. To determine the effect of the CO2 increases caused by deforestation and emissions, th...

2014
Axel Rahmel

Vascularized composite allotransplantation is a continuously evolving area of modern transplant medicine. Recently, vascularized composite allografts (VCAs) have been formally classified as 'organs'. In this review, key aspects of VCA procurement are discussed, with a special focus on interaction with the procurement of classical solid organs. In addition, options for a matching and allocation ...

2011
Jitka Čejková Viola Tokárová Anna Pittermannová František Štěpánek

The problem of targeted delivery and controlled release of a chemical payload in difficult-toaccess microstructured environments such as living tissues or porous soil is considered. Composite microcapsules consisting of the thermo-responsive hydrogel poly-Nisopropylacrylamide (PNIPAM) with dispersed iron oxide nanoparticles have been prepared by w/o emulsion polymerization. The microcapsules ar...

2012
Rajesh Chintala Louis M. McDonald William B. Bryan

In Appalachian grasslands, soil acidity and highly variable topography are the main factors negatively affecting the productivity. There was a need to develop a yield response function and determine nutritive value of grasslands. Soil factors such as water potential (WP), soil pH, nitrogen (N) and phosphorus (P) levels are highly variable across mountainous grasslands. A greenhouse study was co...

2016
Lakshminath Kundanati Saket K. Singh Biman B. Mandal Tejas G. Murthy Namrata Gundiah Nicola M. Pugno

Development and characterization of porous scaffolds for tissue engineering and regenerative medicine is of great importance. In recent times, silk scaffolds were developed and successfully tested in tissue engineering and drug release applications. We developed a novel composite scaffold by mechanical infusion of silk hydrogel matrix into a highly porous network silk scaffold. The mechanical b...

Journal: :Journal of basic microbiology 2014
Yu Wang Guibing Zhu Liyan Song Shanyun Wang Chengqing Yin

Manure fertilizers are widely used in agriculture and highly impacted the soil microbial communities such as ammonia oxidizers. However, the knowledge on the communities of archaeal versus bacterial ammonia oxidizers in paddy soil affected by manure fertilization remains largely unknown, especially for a long-term influence. In present work, the impact of manure fertilization on the population ...

Journal: :تحقیقات آب و خاک ایران 0
نسیم حیدری دانشجوی سابق کارشناسی ارشد گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز عادل ریحانی تبار استادیار گروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز نصرت اله نجفی دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز شاهین اوستان دانشیارگروه علوم خاک دانشکدة کشاورزی دانشگاه تبریز

information about forms of phosphorus (p) is important for the evaluation of p status in soil and also understanding of the soil fertility and plant nutrition. to obtain such information and to determine the relationship between the p forms from soil characteristics, amount of different organic and inorganic p forms of 20 soil composite samples of eastern azerbaijan province, iran were determin...

Journal: :آب و خاک 0
جابر فلاح زاده محمد علی حاج عباسی

abstract soil organic matter and its components are important factors in formation and stability of aggregates and subsequently soil structure. however data regarding organic matter distribution in soil aggregates is scarce, particularly in arid soils of central iran. the objective of this study was to investigate the distribution of organic carbon (oc), total nitrogen (tn), and carbohydrates i...

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