On the Reliability of Variable‐Rate Pumping Test Results: Sensitivity to Information Content of the Recorded Data

2020 ◽  
Vol 56 (5) ◽  
Author(s):  
Mostafa Naderi ◽  
Hoshin V. Gupta
Keyword(s):  
Information Content ◽  
Pumping Test ◽  
Variable Rate ◽  
Test Results ◽  
Recorded Data

scholarly journals Estimating the groundwater storage for future irrigation schemes

2021 ◽  
Author(s):  
Shaibu Abdul-Ganiyu ◽  
Kpiebaya Prosper
Keyword(s):  
Storage Capacity ◽  
Pumping Test ◽  
Groundwater Depth ◽  
Northern Ghana ◽  
Test Results ◽  
Groundwater Storage ◽  
Groundwater Occurrence ◽  
Static Water ◽  
Agricultural Use ◽  
Electrical Data

Abstract Presented in this paper is a feasibility study of groundwater for agricultural use (irrigation) in Northern Ghana. The study was conducted using Geo-electrical data, Boreholes drill logs, results of water quality, and results of the pumping test. The geo-electrical results were to unearth the lithology of the study area; it was found to be underlain with varying geology of both Precambrian and Paleozoic sedimentary formation. These formations consist of phyllite, schist, granite, meta-sediments, and meta-volcanics making up the Precambrian and sandstone, shale, siltstone, mudstones, granitiods also, of the Paleozoic sedimentary. Areas of low resistivity were targeted for drilling per the geophysical results of the profile, values between 24 and 100 ohm.m were zones of probable groundwater occurrence in the study. The groundwater storage capacity and the extractable storage capacity were estimated to be approximately 710,000 km3 and 290,000 km3. The pumping test results acquired from 81 boreholes from the study were used to analyze the sustainability and otherwise. However, groundwater depth was studied using the Static water level (SWL), areas of SWL around 22 m and 25 m are likely to have a shallow depth whereas areas of 17 m would have deeper groundwater depth.

Experimental Tests of I Profile Made from UHPC Reinforced with Textile Glass Fibres

2016 ◽  
Vol 249 ◽  
pp. 261-266
Author(s):  
Tomáš Bittner ◽  
Petr Bouška ◽  
Šárka Nenadálová ◽  
Milan Rydval ◽  
David Čítek
Keyword(s):  
Experimental Testing ◽  
Experimental Tests ◽  
Loading Capacity ◽  
Test Results ◽  
Glass Fibres ◽  
Material Characteristics ◽  
Recorded Data ◽  
Glass Reinforcement ◽  
Metal Wires ◽  
3D Profile

This abstract is summarizing production and subsequent experimental testing of 3D profile of the symmetrical I shape concrete from UHPC matrix and reinforced with textile glass fibres. Upper and bottom covering strips of this profile are at the outside fibres reinforced with textile glass reinforcement. Position of this reinforcement is fixed in the distance of about 3 mm from outside fibres and is connected with reinforcement of the profile stem located in its axis. Such prepared beams were tested with four-point flexure evenly loaded until fracture. Course of the measurement was continuously recorded by the automatic logger, where mostly increase of the force in relation to deflection in the middle of the span and change of position of supports were recorded. From the recorded data were prepared graphic outputs compared with the same experiments performed on I profile which is not reinforced, i.e. only UHPC matrix, and for comparison also on the profile made from UHPC matrix with use of metal wires. In the conclusion were compared achieved test results. Mainly suitability and loading capacity of individual beam types was compared. Within the experiment were performed supporting tests based on which were determined material characteristics of tested matrix and textile glass reinforcement. Tests were performed in the Klokner Institute within solution of the grant project GACŘ 13-12676S.

Numerical Simulation Study on Three-Dimensional Seepage Field of Deep Excavation Dewatering in Thick Aquifer

2013 ◽  
Vol 353-356 ◽  
pp. 1305-1309
Author(s):  
Yan Jun Liu ◽  
Li Zhen Shen
Keyword(s):  
Numerical Simulation ◽  
Simulation Study ◽  
Three Dimensional ◽  
Pumping Test ◽  
Calculation Model ◽  
Test Results ◽  
Deep Excavation ◽  
Test Procedures ◽  
Hydrogeological Parameters ◽  
Geological Conditions

This article describes the pumping test procedures and test results of the subway project 30m deep excavation dewatering in thick aquifer. A groundwater three-dimensional seepage numerical calculation model is established. We use the model to calculate and compare the calculated results and the actual results, obtain hydrogeological parameters by inversion. Further, we have a numerical simulation study on deep excavation dewatering with the hydrogeological parameters, the Simulation results and excavation pre-dewatering test results are consistent. Test results show that the model can reflect the deep excavation dewatering process with complex geological conditions.

scholarly journals Simulation of the Spatial Distribution of Hydraulic Conductivity in Porous Media through Different Methods

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Zengguang Xu ◽  
Xue Wang ◽  
Junrui Chai ◽  
Yuan Qin ◽  
Yanlong Li
Keyword(s):  
Grain Size ◽  
Porous Media ◽  
Spatial Distribution ◽  
Hydraulic Conductivity ◽  
Pumping Test ◽  
Wide Area ◽  
Test Results ◽  
Seepage Field ◽  
Water Conservancy ◽  
Geological Research

Seepage problems exist in water conservancy projects, groundwater research, and geological research, and hydraulic conductivity is an important factor that affects the seepage field. This study investigates the heterogeneity of hydraulic conductivity. Kriging methods are used to simulate the spatial distribution of hydraulic conductivity, and the application of resistivity and grain size is used to obtain hydraulic conductivity. The results agree with the experimental pumping test results, which prove that the distribution of hydraulic conductivity can be obtained economically and efficiently and in a complex and wide area.

scholarly journals STUDI EMPIRIS PERILAKU KEPATUHAN PAJAK PADA WAJIB PAJAK ORANG PRIBADI (STUDI PADA KPP PARATAMA PAMEKASAN)

2018 ◽  
Vol 7 (1) ◽  
pp. 117-124
Author(s):  
Astri Furqani ◽  
Norsain Norsain
Keyword(s):  
Tax Compliance ◽  
Significant Variable ◽  
Optimum Level ◽  
Variable Rate ◽  
Test Results ◽  
Significance Level ◽  
Classic Problem ◽  
Variable Level ◽  
Almost All ◽  
Taxation System

Tax compliance issue is a classic problem encountered in almost all the countriesthat apply the taxation system. Ongoing reforms in government taxation which includesthe formulation and manufacture of legislation and improvement of tax administrationthat facilitate services for the taxpayer. The question, after all this time self-assessmentsystem is running, why the level of compliance has not yet reached the optimum level?What drives someone to be obedient and disobedient?This study using convenience sampling method with a sample of 225 respondentsindividual taxpayer listed on STO Pamekasan.The results showed there are significant variable level of education and incomelevel of the Compliance Tax. SPSS test results, that after the simultaneous analysis ofindependent variables significantly influence the dependent variable at the level of 5%(0.05). R Square = 0.154 showed 15% variation Tax Compliance influenced by educationlevel variables and variable rate income and the rest influenced by other factors notknown to include error. With a significance level of 5%, the variable X whichsignificantly affect the Y variable is the variable X1 only to Education for sign value<0.05 while the variable rate income> 0.05

Non-Darcian effect on a variable-rate pumping test in a confined aquifer

2020 ◽  
Vol 28 (8) ◽  
pp. 2853-2863
Author(s):  
Yabing Li ◽  
Zhifang Zhou ◽  
Chao Zhuang ◽  
Yong Huang ◽  
Jinguo Wang
Keyword(s):  
Pumping Test ◽  
Variable Rate ◽  
Confined Aquifer

scholarly journals Electromyographic fatigue of orbicular oris muscles during exercises in mouth and nasal breathing children

CoDAS ◽  
2015 ◽  
Vol 27 (1) ◽  
pp. 80-88 ◽  
Author(s):  
Angela Ruviaro Busanello-Stella ◽  
Ana Paula Blanco-Dutra ◽  
Eliane Castilhos Rodrigues Corrêa ◽  
Ana Maria Toniolo da Silva
Keyword(s):  
Repeated Measures ◽  
Breathing Pattern ◽  
Mouth Breathing ◽  
Median Frequency ◽  
Test Results ◽  
Nasal Breathing ◽  
Facial Pattern ◽  
Recorded Data ◽  
Electromyographic Signal ◽  
Post Hoc

PURPOSE: To investigate the process of fatigue in orbicularis oris muscles by analyzing the median frequency of electromyographic signal and the referred fatigue time, according to the breathing mode and the facial pattern. METHODS: The participants were 70 children, aged 6 to 12 years, who matched the established criteria. To be classified as 36 nasal-breathing and 34 mouth-breathing children, they underwent speech-language, otorhinolaryngologic, and cephalometric evaluation. For the electromyographic assessment, the children had to sustain lip dumbbells weighing 40, 60, and 100 g and a lip exerciser, until the feeling of fatigue. Median frequency was analyzed in 5, 10, 15, and 20 seconds of activity. The referred time of the feeling of fatigue was also recorded. Data were analyzed through the analysis of variance - repeated measures (post hoc Tukey's test), Kruskal-Wallis test, and Mann-Whitney U-test. RESULTS: A significant decrease in the median frequency from 5 seconds of activity was observed, independently from the comparison between the groups. On comparison, the muscles did not show significant decrease. The reported time for the feeling of fatigue was shorter for mouth-breathing individuals. This feeling occurred after the significant decrease in the median frequency. CONCLUSION: There were signals that indicated myoelectric fatigue for the orbicularis oris muscles, in both groups analyzed, from the first 5 seconds of activity. Myoelectric fatigue in the orbicularis oris muscles preceded the reported feeling of fatigue in all groups. The account for fatigue time was influenced by only the breathing pattern, occurring more precociously in mouth-breathing children.

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