scholarly journals Delineation the effect of saline groundwater on the resistivity of middle part of Dammam Formation southwest of Samawah city, Southern Iraq

2019 ◽  
Vol 60 (5) ◽  
pp. 1095-1103
Author(s):  
Abdullah A. AL-Juboury ◽  
Jassim M. Thabit ◽  
Firas H. AL-Menshed

The study area intendes for agricultural investment and establishment stations of water pumping for human use to the nearby areas, southwest of Samawah city. Twelve Two-Dimension (2-D) survey points were performed by using Wenner-Schlumberger array configuration to take the measurements. The inverse models of two survey point appear the effect of the saline groundwater that raises from Rus Formation, which caused a significant reduction in resistivity of the groundwater-bearing zone within middle Dammam Formation along the fault plane.  

2018 ◽  
Vol 192 ◽  
pp. 03058
Author(s):  
Chamlong Prabkeao ◽  
Akapot Tantrapiwat

A study on wind powered water pumping system aimed for agriculture was carried out in the middle part of Thailand. In this alluvial plain, wind energy potential was determined by making a survey on 21 observation sites. The survey was made in a period of one year, and it has shown that this region locates in a clam climate zone with average wind speeds at about 2 m/s. A wind turbine-water pumping system was installed and evaluated for its performance and efficiency. The result has shown a linear relationship between water discharge capability and the wind speeds. Due to the type of turbine and low wind speed in this region, the system efficiency turned out to be minimal, yet it was practical because the wind power was free. A simple cost analysis from the survey data also has shown that using a wind turbine in this region will be worthwhile when it can be operated for about two decades.


2019 ◽  
Vol 34 (3) ◽  
pp. 285-290 ◽  
Author(s):  
Rasha Ahmed ◽  
Raghad Mohammed ◽  
Ali Radhi

Henna leaves are a priority material for hair dyes and body tattoos and have been used for this purpose for decades. In Iraq, henna is used widely but it requires substantial controls. Iraq is considered an environmentally polluted area as a result of the wars it has experienced, hence, this study has been conducted to calculate the level of 222Rn contamination in henna leaves using a CR-39 nuclear track detector. The leaves were collected from the province of Basrah, which is located in southern Iraq and is famous for cultivation of this plant. The radon concentrations were found to range from 12.140 to 16.255 Bqm?3 in Al-Faw, and from 7.613 to 11.111 Bqm?3 in Abu Al Khasib. Radon activity ranged from 6.09?10?4 to 8.16?10?4 Bq Radon specific activity ranged from 1.22?10?4 to 1.63?10?4 Bqg?1 in Al-Faw, and from 7.64?10?5 to 1.12?10?4 Bqg?1 in Abu Al Khasib. The radon exhalation rate ranged from 4.05?10?4 to 5.43?10?4 with an average of 4.69?10?4 Bqm?2d?1 in Al-Faw, and from 2.54 10?4 to 3.71?10?4 with an average of 3.22 10?4 Bqm ?2d?1 in Abu Al Khasib. After obtaining the results, one can conclude that the henna plant collected from these areas is safe for human use and is free from high rates of 222Rn.


2020 ◽  
Vol 39 (7) ◽  
pp. 497-504
Author(s):  
Sara Pieczonka ◽  
Doug Schouten ◽  
Oday Dabboor ◽  
Duncan Osler ◽  
Alexander Braun

Muon tomography is applied to realistic density models of a steam-assisted gravity drainage (SAGD) reservoir at 1.25 and 5 years after initial reservoir production. Forward models of muon count and opacity based on the density models are computed, as well as inverse models of the synthetic muon observations for various simulated detector arrays. The results demonstrate that both phases of reservoir development, namely the rising phase and the spreading phase, can be resolved by muon detectors placed 30 m below the bitumen reservoir at 230 m total vertical depth. The total mass change in the reservoir was recovered from the inversion model and differs from the true mass change by 20%–29%. The spatial distribution of density change shows very good agreement in the horizontal direction, while the vertical is less well constrained in this modeled sensor array configuration. The inverse models provide improved insights into reservoir depletion patterns and indicate muon tomography to be an applicable tool for continuous reservoir monitoring. The numerical modeling approach developed herein is able to model a wide range of SAGD reservoir geometries and detector arrays toward planning of optimized monitoring solutions.


2020 ◽  
Vol 24 (5 Part A) ◽  
pp. 2915-2927 ◽  
Author(s):  
Vimal Sontake ◽  
Arunendra Tiwari ◽  
Vilas Kalamkar

Photovoltaic technology is an effective, reliable and rapidly developing technology to convert solar energy into electrical energy. In the recent years, the need and demand of solar photovoltaic water pumping system has been increased as a stand-alone water pumping system to pump water in remote, desolate and mountainous region for end use of livestock watering and rural/urban water supply system. For a required pumping head, photovoltaic array configuration and its size (peak power rating, Wp) affect the flow rate of pumped water, economy and performance of solar photovoltaic water pumping system. The recent work is aimed to study performance of a directly coupled solar photovoltaic water pumping system at different pumping heads (2 bar, 3 bar, 4 bar, and 5 bar) and different photovoltaic array configurations (3S?2P, 4S?2P, 5S?2P, 6S, 7S, and 8S) for the real meteorological conditions of the Vidarbha region, central India (Nagpur). A comparative study has been done to investigate the head effect on the optimum photovoltaic array configuration, pump and pumping system total efficiency by performing experiment on the centrifugal deep well pump (SQF 5A-7), with 6-10 photovoltaic modules (200 W each) with various configurations and different heads. It is concluded that the 4S?2P and 5S?2P configurations are most optimized array to provide optimum energy at all pumping heads.


2012 ◽  
Author(s):  
Shannon Dorsey ◽  
Laura Murray ◽  
Emily Haroz ◽  
Catherine Lee ◽  
Courtland Robinson ◽  
...  

Author(s):  
S. P. Bersenev ◽  
E. M. Slobtsova

Achievements in the area of automated ultrasonic control of quality of rails, solid-rolled wheels and tyres, wheels magnetic powder crack detection, carried out at JSC EVRAZ NTMK. The 100% nondestructive control is accomplished by automated control in series at two ultrasonic facilities RWI-01 and four facilities УМКК-1 of magnetic powder control, installed into the exit control line in the wheel-tyre shop. Diagram of location, converters displacement and control operations in the process of control at the facility RWI-01 presented, as well as the structural diagram of the facility УМКК-1. The automated ultrasonic control of rough tyres is made in the tyres control line of the wheel-tyre shop at the facility УКБ-1Д. The facility enables to control internal defects of tyres in radial, axis and circular directions of radiation. Possibilities of the facility УКБ-1Д software were shown. Nondestructive control of railway rails is made at two facilities, comprising the automated control line of the rail and structural shop. The УКР-64Э facility of automated ultrasonic rails control is intended to reveal defects in the area of head, web and middle part of rail foot by pulse echo-method with a immersion acoustic contact. The diagram of rail P65 at the facility УКР-64Э control presented. To reveal defects of the macrostructure in the area of rail head and web by mirror-shadow method, an ultrasonic noncontact electromagnetic-acoustic facility is used. It was noted, that implementation of the 100% nondestructive control into the technology of rolled stuff production enabled to increase the quality of products supplied to customers and to increase their competiveness.


2017 ◽  
Vol 23 (1) ◽  
Author(s):  
V.K. YADAV ◽  
SONAM SHARMA ◽  
A.K. SRIVASTAVA ◽  
P.K. KHARE

Ponds are an important fresh water critical ecosystem for plants and animals providing goods and services including food, fodder, fish, irrigation, hydrological cycle, shelter, medicine, culture, aesthetic and recreation. Ponds cover less than 2 percent of worlds land surface. Ponds are important source of fresh water for human use. These are threatened by urbanization, industrialization, over exploitation, fragmentation, habitat destruction, pollution, illegal capturing of land and climate changes. These above factors have been destroying ponds very rapidly putting them in danger of extinction of a great number of local biodiversity. It is necessary to formulate a correct conservation strategy for pond restoration in order to meet the growing needs of fresh water by increasing the human population. Some measures have been compiled and proposed in the present review.


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