نتایج جستجو برای: Piper diagram

تعداد نتایج: 66079  

Journal: :journal of mining and environment 2010
r. n. singh a.s. atkins a.g. pathan

ground water and surface water create a range of problems in lignite mining utilizing surface mining methods. in order to create a safe and economic mining environment, it is essential to carry out mining after dewatering the rock mass surrounding the lignite mines by advance dewatering techniques. this paper briefly describes the ground water regimes including pressure gradients associated wit...

2016
Arunrat Chaveerach Tawatchai Tanee Arisa Sanubol Pansa Monkheang Runglawan Sudmoon

Piper species are used for spices, in traditional and processed forms of medicines, in cosmetic compounds, in cultural activities and insecticides. Here barcode analysis was performed for identification of plant parts, young plants and modified forms of plants. Thirty-six Piper species were collected and the three barcode regions, matK, rbcL and psbA-trnH spacer, were amplified, sequenced and a...

Journal: :IOP conference series 2023

Abstract Groundwater in volcanic areas flows from the recharge to discharge, and dissolving rock minerals undergo hydrochemical changes. Anthropogenic influences form of increasing built-up land plantation activities upstream raise concerns about changes groundwater hydrochemistry. Hydrogeochemical environmental characterization regions is essential trace rock-water interaction. This study aime...

2014
Rubina Sahin

Hydrogeological investigation have been carried out in Dantewada district. Groundwater samples were collected from selected locations in month of September 2013 and analyzed for major and minor cations & anions. Piper Diagram identified Ca-Mg-HCO3 dominantin water in most of the samples. The dominance of anions and cations were of the order of HCO3 > SO4 2>Cl > NO3 > PO4 2and Mg 2+ >Ca 2+ > Na ...

Journal: :اکو هیدرولوژی 0
مریم موسویان دانشجوی دکتری علوم و مهندسی آبخیزداری، دانشگاه لرستان، ایران علی حقی زاده عضو هیئت علمی گروه مهندسی آبخیزداری، دانشگاه لرستان، ایران سمیه دهداری استادیار گروه مرتع و آبخیزداری، دانشگاه صنعتی خاتم الانبیاء بهبهان، ایران زینب حزباوی دانشجوی دکتری علوم و مهندسی آبخیزداری، دانشگاه تربیت مدرس و عضو انجمن آبخیزداری ایران

todays, the world development is facing serious water quality issues. since protect of water quality and ecosystem healthy is an important aspect of ecohydrology. the present research aimed to analyze the temporal trends of water quality parameters of mashin zard river station in order to planning long term management approaches. in this research, trend of some significant factors of water qual...

Journal: :مرتع و آبخیزداری 0
محمد میرزاوند ‏ کارشناس ارشد آبخیزداری، دانشکدة منابع طبیعی و علوم زمین، دانشگاه کاشان هدی قاسمیه استادیار دانشکدة منابع طبیعی و علوم زمین، دانشگاه کاشان محمود اکبری استادیار گروه عمران، دانشکدة مهندسی، دانشگاه کاشان سید جواد ساداتی نژاد دانشیار دانشکدة علوم و فنون نوین، دانشگاه تهران

kashan aquifer is adjacent to salt lake. because of this adjacency, the saline water of the lake has moved to the aquifer. in this study groundwater quality of the aquifer was simulated using artificial neural network (ann) model. for this purpose, the dominant ion of water was first determined by piper diagram. results showed that the sodium chloride is the dominant ion of water and so it was ...

Journal: :Indian journal of experimental biology 2003
J Karthikeyan P Rani

Piper species, commonly used in diet and traditional medicine were assessed for their antioxidant potential. Catalase activity was predominated in Piper longum, followed by Piper cubeba, green pepper, Piper brachystachyum and Piper nigrum. P. nigrum was richest in glutathione peroxidase and glucose-6-phosphate dehydrogenase, green pepper was richest in peroxidase and vitamin C while vitamin E w...

Journal: :international journal of environmental research 2015
k. arumugam a. rajesh kumar k. elangovan

groundwater is the most widely distributed resource of the earth and groundwater quality evolves rapidly as it passes through the subsurface pathways within the unsaturated zone. increasing urbanization and anthropogenic activities have added to the problem of deficient amount of good quality groundwater. the study area is an industrial hub for textile sector. textile production, particularly d...

Journal: :environmental resources research 0
ali m. rajabi school of geology, department of engineering geology, university of tehran, tehran, iran keyvan mokhtari regional water authority, markazi province, water resources offices of delijan, iran

this study was conducted to evaluate the quality of the groundwaters and the impact of geological units on these waters in hastijan area. for this purpose, 11 samples of water resources have been collected with their appropriate dispersal. physico-chemical parameters of mn, ni, cd, cu, zn, as fe, cr, and ions k+, na+,ca2+, mg2+, cl-, so42-, hco3- as well as indicators th, tds, ec, ph were deter...

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