scholarly journals Substantiating rational schedule to load trucks using draglines while mining a pit of Motronivskyi MPP

2021 ◽  
pp. 23-28
Author(s):  
B.Yu Sobko ◽  
O.V Lozhnikov ◽  
M.O Chebanov ◽  
V.A Kardash
Keyword(s):  
Feasibility Analysis ◽  
Dump Truck ◽  
Development Cost ◽  
Graphical Modeling ◽  
Development System ◽  
Truck Loading ◽  
Rational Procedure ◽  
Mining Width ◽  
Concentration Degree ◽  
Selection Of

Purpose. To substantiate a rational schedule for the combined dragline-truck operation taking into consideration a coefficient of mining in the context of the pit. Methodology. Mathematical and graphical modeling was involved while determining a coefficient of mining concentration in the pit as well as feasibility analysis to select a rational procedure scheme for dragline operation. Findings. Recommendations for the selection of rational dragline operation, while truck loading in the context of Motronivsko-Annivskyi pit, have been developed taking into consideration mining concentration degree in the pit. It has been determined that bottom dragline unloading into a truck, located in the central part of bench mining width, as well as the dragline position at 0.5 A distance from the bench crest, is the most efficient plan of action for the conditions. Technological scheme to develop Motronivsko-Annivskyi pit has been proposed. Originality. Dependence of the mining concentration in the pit upon the parameters of development system elements according to different technological schemes has been derived. The dependence helps estimate development cost for overburden rocks using draglines with direct unloading into trucks. Practical value. Technological schemes for the combined dragline dump truck operation have been developed. Their use makes it possible to cut the prime cost of overburden activities. Implementation of the proposed solutions helps cut stripping cost by UAH 79.65 million a year if annual overburden volume is Qrozkryvu - Qstripping = 13.5 million m3/year.

scholarly journals PENINGKATAN KAPASITAS PENGELOLAAN BADAN USAHA MILIK DESA (BUMDES) DI DESA KOKA DAN DESA KEMBES 2 KECAMATAN TOMBULU

2019 ◽  
Vol 2 (1) ◽  
pp. 15
Author(s):  
Juliana Lumintang ◽  
Fonny Jeane Waani
Keyword(s):  
Focus Group ◽  
Planning Process ◽  
Feasibility Analysis ◽  
Business Planning ◽  
Initial Capital ◽  
Type Selection ◽  
The Government ◽  
Selection Of

Bumdes in Koka and Kembes 2 villages have carried out activities with simple organizing and types of activities that did not go well. The initial capital of Bumdes was not developed and the types of activities were stagnant. The problem is, the management of the activities of Village-Owned Enterprises (Bumdes) in Koka and Kembes Dua Villages, has not run well in accordance with Bumdes management rules issued by the Minister of Villages and Disadvantaged Regions No. 4 of 2015, the business planning process and business feasibility analysis not done so that the selection of business types is done carelessly. The solution that has been implemented is to strengthen the management of the Bumdes to the Bumdes management and village officials so that the government and the Bumdes management will learn about the importance of correct Bumdes management by conducting business planning and business feasibility analysis. The method used is lecture and Focus Group Discusion (FGD) mapping of potential and Bumdes business type selection.

scholarly journals A rational method for determining intermittency in the transitional boundary layer

2019 ◽  
Vol 61 (1) ◽  
Author(s):  
Dhamotharan Veerasamy ◽  
Chris Atkin
Keyword(s):  
Boundary Layer ◽  
Plate Boundary ◽  
Threshold Value ◽  
Normal Direction ◽  
Transitional Flow ◽  
Streamwise Direction ◽  
Transitional Boundary Layer ◽  
Rational Procedure ◽  
Selection Of ◽  
Flat Plate Boundary Layer

Abstract A new rational procedure is proposed for determining the intermittency in the streamwise direction. One of the key parameters for the intermittency determination is the selection of a threshold value, which often involves a certain level of subjectivity. Here, a reliable way of choosing the threshold value in a more objective manner is proposed. The proposed approach involves a single threshold value, equal to the magnitude of the maximum laminar perturbation in the transitional flow. The results obtained are validated with the widely used dual-slope method. In this paper, the measurements are carried out on an experimental arrangement, involving the interaction of an upstream aerofoil wake with a downstream flat plate boundary layer. As a by-product of the study, a scaling parameter has been identified which captures the length of the transition zone as the proximity of the aerofoil in the wall-normal direction is varied. Graphic abstract

scholarly journals Smooth Group L1/2 Regularization for Pruning Convolutional Neural Networks

Symmetry ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 154
Author(s):  
Yuan Bao ◽  
Zhaobin Liu ◽  
Zhongxuan Luo ◽  
Sibo Yang
Keyword(s):  
Neural Networks ◽  
Regularization Method ◽  
Classification Performance ◽  
Feasibility Analysis ◽  
Group Level ◽  
Hidden Node ◽  
Convolution Filter ◽  
Fully Connected ◽  
Hidden Nodes ◽  
Selection Of

In this paper, a novel smooth group L1/2 (SGL1/2) regularization method is proposed for pruning hidden nodes of the fully connected layer in convolution neural networks. Usually, the selection of nodes and weights is based on experience, and the convolution filter is symmetric in the convolution neural network. The main contribution of SGL1/2 is to try to approximate the weights to 0 at the group level. Therefore, we will be able to prune the hidden node if the corresponding weights are all close to 0. Furthermore, the feasibility analysis of this new method is carried out under some reasonable assumptions due to the smooth function. The numerical results demonstrate the superiority of the SGL1/2 method with respect to sparsity, without damaging the classification performance.

scholarly journals An Analysis of Employee Development System to Working Achievement in Obtaining Get Profit at FA. PMH (Firma Persatuan Motor Horas), Medan, Indonesia

2018 ◽  
Author(s):  
Hotnida Sirait ◽  
Daulat Sihombing ◽  
Marion Sibarani ◽  
Chainar Ellyria Tobing
Keyword(s):  
Employee Development ◽  
Or Education ◽  
Development System ◽  
Good Place ◽  
Participant Selection ◽  
Selection Of

Skilled employee can be obtained either in company or out company. If wechoose employee from out of company, we will need big expense. Therefore it is possible to usethe employee that is exist in the company, by making developing techiques such as coaching based on duty given by company and thing that can increase employee’s achievement and desire. Basically Fa.P.M.H. Medan has run the development or education and train, but the number of developed employee is few. In participant selection of employee development, company is less objective. The development of employee’s achievement in facing the obstacle is many employees that have followed education and train placed in good place and less in getting company’s appreciation.

scholarly journals Evolutionary Artificial Neural Networks as Tools for Predicting the Internal Structure of Microemulsions

2008 ◽  
Vol 11 (1) ◽  
pp. 67 ◽  
Author(s):  
M. Gašperlin ◽  
F. Podlogar ◽  
R. Šibanc
Keyword(s):  
Genetic Algorithm ◽  
Neural Networks ◽  
Drug Delivery Systems ◽  
Drug Carrier ◽  
Computer Language ◽  
Development Cost ◽  
Scanning Calorimetry ◽  
Evolutionary Neural Networks ◽  
Further Development ◽  
Selection Of

PURPOSE. The purpose of this study was to predict microemulsion structures by creating two artificial evolutionary neural networks (ANN) combined with a genetic algorithm. The first ANN would be able to determine the type of microemulsion from the desired composition, and the second to determine the type of microemulsion directly from a differential scanning calorimetry (DSC) curve. METHODS. The algorithms and the structures for each ANN were constructed and programmed in C++ computer language. The ANNs had a feed forward structure with one hidden level and were trained using a genetic algorithm. DSC was used to determine the microemulsion type. RESULTS. The ANNs showed very encouraging accuracy in predicting the microemulsion type from its composition and also directly from the DSC curve. The percentage success, calculated over the tested data, was over 90%. This enabled us, with satisfactory accuracy, to construct several pseudoternary diagrams that could facilitate the selection of the microemulsion composition to obtain the optimal desired drug carrier. CONCLUSIONS. The ANN constructed here, enhanced with a genetic algorithm, is an effective tool for predicting the type of microemulsion. These findings provide the basis for reducing research time and development cost for characterizing microemulsion properties. Its application would stimulate the further development of such colloidal drug delivery systems, exploit their advantages and, to a certain extent, avoid their disadvantages.

scholarly journals Analisis Kelayakan Finansial Pembuatan Pakan Ternak dari Sampah Organik Dapur

2021 ◽  
Vol 5 (3) ◽  
pp. 869-877
Author(s):  
Intan Dewi ◽  
◽  
Muhammad Taufikurohman ◽  
Noverdi Bross
Keyword(s):  
Protein Content ◽  
Organic Waste ◽  
Secondary Data ◽  
Payback Period ◽  
Feasibility Analysis ◽  
Primary Data ◽  
Microsoft Excel ◽  
Financial Feasibility ◽  
Egg Care ◽  
Selection Of

Cultivation of maggot BSF is an activity in which a person performs maintenance of maggot ranging from egg care, maggot enlargement, hatching pre-pupae into flies, to feeding poultry using maggot. Maggot cultivation is usually carried out in places close to landfills or markets that produce organic waste. This type of BSF maggot is trending because of the protein content in maggot. The objectives of this study are: Analyzing the feasibility of BSF maggot cultivation business based on financial and non-financial aspects. This research was conducted at PPM BSF Dadali Kali Baru, Medan Satria, Bekasi City. The selection of research locations is done intentionally (purposive). The data used in this study are primary and secondary data, where primary data is obtained through interviews and observations. Secondary data obtained through literature, journals, previous research, and books. Data and information that have been collected are analyzed quantitatively which is processed by Microsoft Excel 2013. Financial feasibility analysis is done by calculating IRR, NPV, B / C ratio, BEP, and also Payback Period. The results of this study are: R / C Ratio value of 2,257, B / C Ratio value of 1,237, Volume BEP obtained value of 53.17 kg, BEP Price value of Rp 13,292, Payback Periods (PP) within 4 months 9 days (5 periods), so it can be concluded that Kang Mis's business is feasible to run.

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