scholarly journals Borehole Rehabilitation: A Case Study in the Dunkwa Mining Town

2020 ◽  
Vol 20 (2) ◽  
pp. 11-17
Author(s):  
A. Ewusi ◽  
J. Seidu
Keyword(s):  
Water Supply ◽  
Central Region ◽  
Pumping Test ◽  
Implementation Cost ◽  
Mining Town ◽  
Long Time ◽  
Borehole Camera ◽  
The Cost ◽  
Very High

Rehabilitation works were carried out on boreholes in the Dunkwa Mining town in the Central Region of Ghana. These works were carried out because the boreholes had lost their original yields due to clogging, corrosion and encrustation and had been abandoned for a long time. The cost of drilling a new well and assessing the productivity of the well is $4,500 which is more expensive that carrying out rehabilitation works which is cheaper, about $800. Also, the initial yields of the boreholes were very high according to the feasibility report which is not a common characteristic of the rocks in the area. Camera inspection followed by rehabilitation, pre and post pumping tests were carried out to assess whether there has been an improvement in their yield after the exercise and that the yield obtained will be adequate for a water supply design. Results show that all the boreholes had an improvement in their yields (57.19 - 259.80 %) after the rehabilitation. It can therefore be concluded that rehabilitation is effective in restoring boreholes to their original yields. Organisations drilling boreholes to communities can take advantage of rehabilitation of the existing boreholes located in the communities which are high yielding, thereby reducing project implementation cost. Keywords: Borehole Rehabilitation, Borehole Yields, Borehole Camera Inspection, Pumping Test

The Development of Rural Water Supply in the Province of Fayoum, Egypt

1993 ◽  
Vol 27 (9) ◽  
pp. 37-46 ◽  
Author(s):  
Abdel Rahman Abu Hamed ◽  
A. M. H. Sannen
Keyword(s):  
Water Supply ◽  
Production Capacity ◽  
Cost Recovery ◽  
Rural Water Supply ◽  
Rural Water ◽  
To Come ◽  
State Of Affairs ◽  
The Cost ◽  
Year 2000

The paper provides a case study of rural water supply in Fayoum. First, the present state-of-affairs is described and analyzed with respect to production, consumption and coverage. A water balance is drawn up and the projected trends up to the year 2000 are indicated. Nearly full coverage has been achieved already but still more than 50% of the population is served by public standposts. Considerable demand for house connections is apparent. Based on the present trend it is expected that by the year 2000, 75% of the population could be served by private connections, provided sufficient production capacity becomes available. Secondly, the focus is on organization and finance with special attention to cost recovery. Estimates for present billing efficiency and the Unaccounted For Water (UFW) percentages are provided. With the perceived trend in the growth of house connections and decline of public taps there is ample potential to reduce UFW, provided an efficient billing and fee collection system is introduced and leakage is controlled. With the reduction of UFW by “technical” measures half of the cost recovery target can be achieved. The other half has to come from tariff increases. Experience is drawn from the Netherlands-supported Fayoum Drinking Water and Sanitation Project (FADWS) which started in 1990.

scholarly journals KERAGAAN AGROINDUSTRI DAN POSISI PRODUK BERDASARKAN SIKLUS HIDUP PRODUK PADA SOSIS GULUNG VARIAN NOODLE DI CV CUCURUTUKU CERIA

2021 ◽  
Vol 9 (4) ◽  
pp. 561
Author(s):  
Meliani Indah Sari ◽  
Dyah Aring Hepiana Lestari ◽  
Wuryaningsih Dwi Sayekti
Keyword(s):  
Life Cycle ◽  
Product Life Cycle ◽  
Production Costs ◽  
Selling Price ◽  
Long Time ◽  
The Government ◽  
The Cost

This study aims to analyze the process production of sausage noodle roll, the income and production costs, the marketing action and determine the position based on the life cycle of sausage noodle roll as well learn the role of supporting service for sausage noodle roll in CV Cucurutuku Ceria. This research method is a case study. The determination of consumer samples is taken by Convenience Sampling. Analysis of the data used in this research is descriptive qualitative and quantitative analysis. The data of this study was collected in May 2019 until June 2019. The results showed that the value R/C>1, that means sausage noodle roll business was profitable. Calculation of the cost of production on sausage rolls noodles amounted to Rp1,046.53. The BEP unit calculation has been achieved for a long time, in the amount of 42,791 units from the BEP calculation of 604 units. The noodle rolls sausage has also obtained a profit from the selling price of Rp ,000.00 per pcs from the calculation of the BEP price of Rp1,238.58 per pcs. The marketing mix that has been utilized by CV Cucurutuku Ceria is collaboration with e-commerce companies namely gofood and grabfood to facilitate consumers in the ordering process and CV Cucurutuku Ceria has utilized social media as promotional activities for sausage noodle roll product. In the product life cycle, sausage noodle roll are in a stage of decline. CV Cucurutuku Ceria has not fully utilized the government policies regarding the protection and empowerment of Micro, Small and Medium Enterprises.Keywords: cost, noodle, position, and sausage

scholarly journals The Assessment of the suitability of reconfigurable design through simulation and decision trees

2020 ◽  
Vol 5 (9) ◽  
pp. 1027-1030
Author(s):  
Ricardo Irving Ramirez Guzman ◽  
Mario Luis Chew Hernández ◽  
Mtro. Leopoldo Viveros Rosas ◽  
Ricardo Rodríguez Figueroa
Keyword(s):  
Decision Trees ◽  
Process Equipment ◽  
Cost Of Transport ◽  
Reconfigurable Design ◽  
New Process ◽  
Long Time ◽  
Mobile Process ◽  
The Cost ◽  
Productive Time

Positioning of the equipment of a manufacturing company is done foreseeing that it will remain fixed for a long time. This is because changes in the plant layout are thought to be costly, as they involve redesigning equipment support services, developing new foundations, using heavy machinery to move equipment, and causing non-productive time at the plant. However, the increased competition due to globalization, lead us to consider the alternative of making modifications to the layout more frequently to improve productivity. Changing the position of the equipment can be facilitated by specifying smaller mobile process equipment or by anticipating the availability of services at different points in the workshop and the existence of cranes or other means of transportation. These forecasts, logically, result in a greater investment in elements that, at least initially, do not generate any profit. This work shows the evaluation of the feasibility of modifying the positions of the equipment when there are variations in the probability distribution in production speeds. This evaluation is carried out using decision trees and process simulation. The case study addressed consists of a generic production line with serial workstations. Jobs arrive at the first computer and join their product on hold if space is available, otherwise the job is lost. In the same way, the product on hold of the other teams are limited in size, and when a product on hold is full, the team behind stops until there is space available. Due to the use, the speeds of the equipment are changing with respect to the ones they had when new: the process times are increasing and / or becoming more variable. To improve productivity under the new process speeds, the space between the equipment can be modified, however, during this change, production must be suspended. This work shows how, by simulating processes and decision trees, it is possible to determine the ranges of values ​​of the suspension time and the cost of transport for which it is convenient to make changes in the spacing of the equipment.

scholarly journals SCHEDULING OPTIMIZATION FOR EXTRACT, TRANSFORM, LOAD (ETL) PROCESS ON DATA WAREHOUSE USING ROUND ROBIN METHOD (CASE STUDY: UNIVERSITY of XYZ)

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Agung Yudha Berliantara
Keyword(s):  
Data Warehouse ◽  
Execution Time ◽  
Large Data ◽  
Round Robin ◽  
Long Time ◽  
Scheduling Method ◽  
The Difference ◽  
Cost Of Time ◽  
The Cost

ETL scheduling is a challenging and exciting issue to solve. The ETL scheduling problem has many facets, one of which is the cost of time. If it is not handled correctly, it may take a very long time to execute and inconsistent data in very large data. In this study using Round-robin algorithm method that proved able to produce efficient results and in accordance with conventional methods. After doing the research, the difference between these two methods is about execution time. Through this experiment, the Round-robin scheduling method gives a more efficient execution time of up to 61% depending on the amount of data and the number of partitions used.

scholarly journals Analisis Pendapatan Industri Tahu di Kota Wamena

2021 ◽  
Vol 5 (4) ◽  
pp. 1250-1261
Author(s):  
Rein Rumbiak ◽  
◽  
Lulus Sedavit ◽  
Sumiyati Tuhuteru
Keyword(s):  
National Development ◽  
Secondary Data ◽  
Industrial Sector ◽  
Primary Data ◽  
Agricultural Product ◽  
Selling Price ◽  
Long Time ◽  
Business Income ◽  
The Cost

Agricultural cannot development without the support of the economic sector, especially industry, in this case the development of the agricultural product processing industry (agro-industry) is one of the priorities in national development in industrial sector. Tofu processing business income is very dependent on the selling price of the product and the costs incurred to produce tofu, the higher the product selling price and the lower the cost, the higher the business income. This study aims to determine the level of profit obtained by each industry that has been operating for a long time. The research was conducted in July - September 2018, on the tofu industry in Wamena City. The method used is a case study method with the type of data collected including primary data and secondary data. The data analysis method uses Cost Analysis, Revenue Analysis, and Income Analysis. The results showed that the tofu "Tahu Tempe Jaya" industry was not profitable, compared to the tofu "Tahu Ayu Rezeki" industry which was profitable.

scholarly journals Optimization in VHTS Satellite System Design with Irregular Beam Coverage for Non-Uniform Traffic Distribution

2021 ◽  
Vol 13 (13) ◽  
pp. 2642
Author(s):  
Flor G. Ortiz-Gomez ◽  
Miguel A. Salas-Natera ◽  
Ramón Martínez ◽  
Salvador Landeros-Ayala
Keyword(s):  
Satellite System ◽  
Coverage Area ◽  
Traffic Demand ◽  
Coverage Error ◽  
Traffic Distribution ◽  
Previous Algorithm ◽  
And Performance ◽  
The Cost ◽  
Very High

Very High Throughput Satellites (VHTS) have a pivotal role in complementing terrestrial networks to increase traffic demand. VHTS systems currently assume a uniform distribution of traffic in the service area, but in a real system, traffic demands are not uniform and are dynamic. A possible solution is to use flexible payloads, but the cost of the design increases considerably. On the other hand, a fixed payload that uses irregular beam coverage depending on traffic demand allows maintaining the cost of a fixed payload while minimizing the error between offered and required capacity. This paper presents a proposal for optimizing irregular beams coverage and beam pattern, minimizing the costs per Gbps in orbit, the Normalized Coverage Error, and Offered Capacity Error per beam. We present the analysis and performance for the case study and compare it with a previous algorithm for a uniform coverage area.

Design and Implementation of Monitoring System Using PLC for ICT-Integrated Fish Farm

2018 ◽  
pp. 119-138
Keyword(s):  
Smart Grid ◽  
Power Plants ◽  
Fish Farms ◽  
Design And Implementation ◽  
The Republic ◽  
The Cost ◽  
Communication Equipment ◽  
Very High ◽  
Mass Stranding

The key to a Smart Grid is to manage electric power within the grid efficiently. There are many advantages in building a smart grid but it is useful in using it as an ancillary power grid for the business that can be damaged extensively due to blackout or interruption of power caused by hurricanes at power plants, substations and other related infrastructures. Fish farms in the republic of Korea use a considerable power and suffer a serious loss from a mass stranding caused by power interruptions. This chapter introduces a case study which aims to design a power line-based communication for the fish farms/vertical farms as the cost of constructing an internet network at the farm with UTP cables and other communication equipment is very high. This section includes a designing technique for the entire system and its necessary applications.

scholarly journals Double-objective optimization-based firefly algorithm of a stand-alone photovoltaic/water pumping system for water supply in rural and remote areas: a case study

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Ruben Zieba Falama ◽  
Hamadou Bakari ◽  
Virgil Dumbrava
Keyword(s):  
Water Supply ◽  
Firefly Algorithm ◽  
Pumping System ◽  
Reservoir Volume ◽  
Water Pumping ◽  
Dynamic Head ◽  
Rural And Remote Areas ◽  
Total Investment ◽  
The Cost

AbstractA techno-economic study of a stand-alone PV water pumping system for water supply is done in this paper. An optimal design of the system is realized thanks to a double-objective optimization based on a proposed operational strategy of the system and on firefly algorithm (FA). The two objective functions simulated simultaneously using FA are: the function defining the cost of water (COW) and the function which defines the loss of water supply probability (LWSP). The system is designed to supply water to around 328 households in Cameroon, each composed by an average of six (06) persons. For different LWSP, the double-objective simulation determines the optimal configurations of the system with their related cost. The optimal and reliable (LWSP of 0%) system configuration obtained is composed by a number of 7 PV modules, a reservoir volume of 98.4 m3 with 2 days autonomy, a total dynamic head of 40 m, and a pump power of around 1 kW. The related COW corresponding to this configuration is 0.1185 $/m3, and the total investment cost is 27,506 $. The sensitivity analysis of the system revealed that the PV size, the volume of reservoir storage, and the efficiency of the pump influence the system both technically and economically, whereas the total dynamic head only influences the system economically. The validation of the optimized system has been done by comparison with manufacturer datasheets. It is demonstrated in this paper that the techno-economic analysis of energy systems based on multi-objective optimization using firefly algorithm is a powerful tool for decision-making.

Bit Run Optimization through Simulation: A Case Study

2012 ◽  
Vol 433-440 ◽  
pp. 2387-2393
Author(s):  
E. Novieri ◽  
S. Torfi
Keyword(s):  
Flow Rate ◽  
Penetration Rate ◽  
The Other ◽  
Time Dependent ◽  
Factors Affecting ◽  
Drilling Cost ◽  
The Cost ◽  
Very High ◽  
Mud Flow

The usual objective when drilling a well is to drill for the lowest overall cost. At first sight, this may seem like a requirement to drill as fast as possible, since many of the costs, such as the rig day rate, wages etc., are time dependent. However, some costs are fixed, for example the cost of the bit, and it may not always be economic to pay a very high cost for a bit that drills somewhat faster, particularly if the other costs are low.In this paper, some first 3465 feet of a reservoir lithology including four bit runs are analyzed so that factors affecting penetration rate are optimized and the lowest possible well cost is achieved. The effects of using other bit types, WOB, RPM and bit hydraulics are simulated in an attempt to determine the optimized parameters, which result in the lowest drilling cost. In this study, reducing both nozzle sizes and mud flow rate, the horse power dissipated at the bit is increased, hence reducing cost per foot of drilled interval. As it is noted, by using this simulator, 17% of the original well cost is saved, which is a considerable amount of money.

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