scholarly journals Optimization method for standards for working capital in the engineering enterprise.

2015 ◽  
Vol 2015 (2) ◽  
pp. 135-140
Author(s):  
Галина Коновалова ◽  
Galina Konovalova

Proposed optimization method for calculating normative working capital at an engineering company, based on a comprehensive quantitative assessment of the status of the planned production.

2021 ◽  
pp. 391-399
Author(s):  
Kestrilia Rega Prilianti ◽  
Syaiful Anam ◽  
Tatas Hardo Panintingjati Brotosudarmo ◽  
Agus Suryanto

Rapid assessment of plant photosynthetic pigments content is an essential issue in precise management farming. Such an assessment can represent the status of plants in their stages of growth. We have developed a new 2 Dimensional-Convolutional Neural Network (2D-CNN) architecture, the P3MNet. This architecture simultaneously predicts the content of 3 main photosynthetic pigments of a plant leaf in a non-destructive and real-time manner using multispectral images. Those pigments are chlorophyll, carotenoid, and anthocyanin. By illuminating with visible light, the reflectance of individual plant leaf at 10 different wavelengths – 350, 400, 450, 500, 550, 600, 650, 700, 750, and 800 nm – was captured in a form of 10 digital images. It was then used as the 2D-CNN input. Here, our result suggested that P3MNet outperformed AlexNet and VGG-9. After undergoing a training process using Adadelta optimization method for 1000 epochs, P3MNet has achieved superior MAE (Mean Absolute Error) in the average of 0.000778 ± 0.0001 for training and 0.000817 ± 0.0007 for validation (data range 0-1).


2014 ◽  
Vol 6 ◽  
pp. 147381 ◽  
Author(s):  
Jun Zhou ◽  
Jing Gong ◽  
Xiaoping Li ◽  
Tong Tong ◽  
Mengya Cheng ◽  
...  

Because of the increasing energy demand, coalbed methane (CBM) which is a high-quality, clean new energy gets more and more national attention. As one of the keys of CBM's successful development, the investment of surface gathering system accounts for a significant proportion of the entire field's investment. This paper studied the optimization of CBM gathering system, combined with system process characteristics and the status of extraction and production. We chose a phased optimization method such that the optimization of entire system was divided into several subproblems, including well group's optimal partition, determination of gathering valve set's optimal position, optimization of trunk and branch pipe network's layout, and optimization of pipe diameter. Then we established optimization model such that the least investment costs of each stage were to be as objective function. When solving the model, full consideration of the low pressure and high complexity by which the CBM gathering and transportation pipeline network was characterized should be given. Through an example calculation, compared with artificial design result, the total investment decreased by 9.56%. We proved that the method has a good optimization effect by comparably analyzing the investment and construction scale of the existing pipe network and optimal pipe network.


2016 ◽  
Vol 258 ◽  
pp. 481-484
Author(s):  
Dalibor Bartonek ◽  
Jiří Bures ◽  
Otakar Svabensky

The paper describes optimized measurements in field on points of railway control by the GNSS-RTK method. The purpose of measurement is to monitor the status of railroad track geometry. Good geometry extends the life of superstructure, reduces tracks and sleepers material wear during passing of the trains, and thus lowers the overall maintenance demands. In the model each of these points can be represented by node in graph and evaluation of graph edges corresponds to the distance between individual nodes. The task is to measure on every node even one times and to absolve the total route with minimal sum of distance. In fact it is searching of the Hamilton's path in a graph. The situation is complicated because the conditions for GNSS surveying in nodes are suitable only at certain time intervals during the day. Generally the above mentioned is difficult task, which is solved in the practice in many cases by heuristic methods. The authors proposed the optimization method based on Floyd algorithm and dynamic data structure - events list. The optimization of field measurement solves the time demands and brings economic effectiveness.


2019 ◽  
Author(s):  
Homa Yousefi Khoshsabegheh ◽  
Ali Ardalan ◽  
Amir Hossein Takian ◽  
Leila Hedayatifar ◽  
Abbas Ostadtaghizadeh ◽  
...  

Abstract Background: Over recent years, the exposure of people and assets to disasters has been faster than reducing vulnerability in all countries. As a result, new risks have been formed and losses due to disaster are progressively increasing. Suffering from significant losses in the aftermath of disasters every year, Iran is no exception. Governmental and non-governmental stakeholders are jointly responsible for managing the risks of disasters. Hence, appropriate, collaborative and timely interactions of involved organizations will play an important role in their operation, especially during disasters. Methods: In this study, we used the Social Network Analysis (SNA) to analyze the network of stakeholders in disaster risk management in Iran. Our review of literature, laws, and regulations of disaster risk management plus brainstorming identified a list of 85 stakeholders. We used the Delphi method among purposefully selected experts to score the relationship between the stakeholders. We then used the modularity optimization method to identify groups with greater interaction. Organizations with key-roles in the network and the ones in need of stronger relationships were identified through centrality measurements. Results: The density of this network was 0.75, which represented that not all the stakeholders were connected. Among all organizations identified, the National Disaster Management Organization and Civil Defense Organization showed higher influences considering their responsibilities. Conclusion: To provide a visual and tangible picture of the status and interrelationships among the stakeholders, this method identified groups with better interaction using community/cluster detection and modularity optimization methods. Understanding the current structure of the network and strengths and weaknesses of the interactions among stakeholders may help improve disaster risk management in Iran. Results of this research determine the role and importance of different organizations, their weakness, and strong points. Also, results help them to plan to strengthen their roles and solve their problems.


Author(s):  

On the basis of the performed analysis of the annual State reports “On the status and use of water resources of the Russian Federation, annual reports of the Federal Service for Ecological, Technological and Nuclear Supervision, and the data of the Russian Register of Hydraulic Facilities the outcomes of the Water Strategy of the Russian Federation implementation with reference to securing of hydraulic facilities safety are presented as current by the end of 2017. Analysis of the data on conditions of hydraulic facilities by the regions and Federal districts of the Russian Federation has been carried out. The results of quantitative assessment of the implementation of measures aimed to attaining of the hydraulic facilities adequate level of safety have been considered. Comparative analysis of the hydraulic facilities safe state establishing by years has been done.


Populasi ◽  
2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Abbas Effendi

This research, which was conducted in Palembang and Pangkalpinang in the province of Southern Sumatra, aim at identifying the factors which influence the level if income among permanent migrants in the informal sector. The results of the study indicate that the status of the residential house which is at the same time used as the place of work, has for long, bent over employment, recruitmentof the family labor force, and the level of education is a very dominant factor in the level of income. On the other hand, the variable of the number of workers and the source of capital does not have a dominating influence on the level of income of the migrant workers in the informal sector. Abbas Effendi in this paper argues that the number of workers and the working capital do not constitute major factors in improving on the production or the output, but instead, the factor of effectiveness and efficiency in using the factors of production are crucial in improving on their output.


2021 ◽  
Vol 4 (1) ◽  
pp. 6
Author(s):  
Matthew Fritz

The National Center for Science and Engineering Statistics (NCSES) is one of the thirteen principal statistical agencies of the United States and is tasked with providing objective data on the status of the science and engineering enterprise in the U.S. and other countries. NCSES sponsors or co-sponsors data collection on 15 surveys and produces two key publications: Science and Engineering Indicators, and Women, Minorities, and Persons with Disabilities in Science and Engineering. Though policy-neutral, the data and reports produced by NCSES are used by policymakers when making policy decisions regarding STEM education and research funding in the U.S. Given NCSES’s importance to the science and engineering community, raising awareness of NCSES and increasing participation by individuals in STEM fields is an important priority.


1954 ◽  
Vol 8 (3) ◽  
pp. 410-414

The following summary covers the activities of the Council of the Organization of American States from its 118th meeting on December 3, 1952, through its 129th meeting on April 1, 1953.On January 7, 1953, the Council approved the report of the Finance Committee on the budget for the fiscal year 1953–1954: $2,939,030 for the expenses of the Pan American Union, $219,524 for the Inter-American Defense Board, and $1,377 for repayment of advances from the Working Capital Fund. Of this amount, members would contribute $3, 159, 941; making allowance for income from miscellaneous sources, the budget was $225, 782 higher than for the pre-ceding fiscal year. The Council also approved the scale of assessments for the coming fiscal year; contributions by members ranged from 66 percent for the United States, 8.81 percent for Brazil and 7.42 percent for Argentina to 0.24 percent each for Costa Rica, Ecuador, Haiti, Honduras, Nicaragua and Paraguay. The attention of member governments was drawn to a report submitted to the Council on March 4, 1953, by the Finance Committee on the status of members' contributions; the report revealed that six countries had paid in full their quotas for the fiscal year ended June 30, 1953, four countries had paid in part while eleven had as yet made no payment. Two members still owed part of their quotas for the fiscal year ended June 30, 1952 while four had made no payment on that quota. Three members still owed their quotas of the budgets of fiscal years before 1951–1952.


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