Management Of Production Units Research Articles

Hunting-Based Optimization Technique for Secured Optimal Power Flow with Lines Outages in Power System

This paper aims to achieve the exact resolution of an optimal power flow (OPF) problem in an electrical network. In the OPF, the goal is to plan the production and distribution of electrical power flows to cover, at minimal fuel cost, the consumption at various points in the network. Three variants of the OPF problem are studied in this manuscript. The first one, OPF corresponds to the case where power production costs in the network are modeled with a quadratic cost. In the second variant, OPF with outages of some lines, we clarify the extent to which power flow is affected by the outages and the increasing number of overloaded lines. Finally, the last variant, secured OPF corresponds to the case where the management of production units can respect the power limit of each line by rescheduling power production units. The study focuses on congestion management in the IEEE 30 bus system by applying a model for OPF, incorporating data from both transmission lines and generators. The research proposes a Hunting Optimization Technique which is named “Multi-Objective Ant Lion Optimizer (MOALO)” to solve single and multi-objective optimization problems to find a solution for management pricing, comparing results with other research methods to show the effectiveness of the applied approach and the mathematical model representing congestion management.

Pengelolaan Unit Produksi Siswa Gajian Dalam Bidang Tata Busana Di SMK Muhammadiyah 5 Surakarta

In accordance with article 15 UUSPN no. 20 of 2003 states that Vocational Schools are a type of formal education that aims to ensure that students are ready to enter the world of work and are able to prepare for life with independence. One of the efforts is to organize production unit management, namely combining business and academics. The aim of this research is to determine the management of the production unit for the salary student program at SMK Muhammadiyah 5 Surakarta. The method used is qualitative with a literature study approach. The result is the Payroll Student program. The aim is not to exploit students, but rather to train and improve students' abilities in accepting sewing orders from outside such as trousers, mukena bottoms, robes and negligees. The advantage of this salary student program is that you can increase your skills in sewing without having to buy fabric, and you can get a salary or wages from the orders the students get. Meanwhile, the downside is that students find it a little difficult to catch up on subjects they didn't follow when completing orders. However, there are teachers who do not force students to catch up.

PERFORMANCE ANALYSIS OF PRODUCTION UNITS FOLLOWING THEIR REINTRODUCTION IN SELECTED SECONDARY SCHOOLS OF LUSAKA

Production units were a common feature in most schools during the United Independence Party (UNIP) Government. They were an important component of preparing learners for independent living as well as a way of making schools a second home for learners where learners could learn and eat. This study assessed the performance of Production Units in selected secondary schools in Lusaka District. The objectives of the study were; to establish how the Production Units were managed in selected schools in Lusaka District and to explore the challenges that were affecting the performance of Production Units in schools. A qualitative research approach and a descriptive design were adopted. Eighteen (18) participants in charge production units in the three selected schools were purposively selected and involved in the study. The composition of sample was Three (03) Head- teachers; Three (03) Heads of Departments; and Six (06) Science Teachers; and Six (06) General Workers, all members that were purposively selected by virtue of their involvement in production unit. The findings established that that schools had established structures that guided the management of production units. It was further established that decisions were made democratically on how production units should run in each school sampled in the study. In terms of the performance, it was revealed that the units were adding value to schools through the activities undertaken under production units. Some challenges were identified in terms of how the production units were operating in schools. These included: shortage of land, poor planning in terms of timing of activities to do with production units, lack of proper training, lack of transport and market, and inadequate financial resources for expanding production units’ activities. Arising from the findings of the study, the following recommendations were made: workers under production units should be trained; schools to develop marketing strategies through working with supermarkets, hotels and lodges. Also, land to be secured through the help of Ministry of General Education and Ministry of Lands for schools to expand their ventures.

Construction of a sustainability indicators system for offshore oil and gas production units

Production units located in the Brazilian marine environment are responsible for the production of 95.7% of oil and 78.8% of natural gas of Brazil causing economic, environmental, and social impacts motivating us to construct a system of indicators as a tool aimed to improve the sustainable management practice of these production units. To date, one of the tools most used by the oil industry is the sustainability report, oriented by guidelines from international organizations. However, these reports have a corporate character being unable to help the sustainability management of production units’ activities. The indicators were selected based on a systemic approach, using current knowledge on sustainability indicators, together with the survey of aspects relevant to the operation and management of offshore oil and gas production units. This paper describes the proposed indicators and presents the hierarchical structure of the system, built on the economic, environmental, social, and operational dimensions. The application of the proposed system of indicators, based on multicriterial and multiple decision-making analyses, validates a complex decision process, providing improved sustainable management of offshore production units by identifying points for which the necessary measures and actions can be implemented. Keywords: offshore oil and gas production; sustainability indicators; multicriteria and multiple decision-making analyses.

Professional training of agricultural industry assistants as pedagogical problem

Improving the effectiveness of professional training of agricultural professionals is one of the priorities of the higher agricultural education system. The purpose of the article is to determine the main approaches to the professional training of agricultural specialists. According to the analysis of psychological and pedagogical literature, scientific contributions, the author gives the author's definition: "the willingness of future specialists in the agricultural sector to professional activity as an awareness of the need for purposeful obtaining theoretical knowledge, practical skills for self-formation, awareness of personal and social sphere. " We have identified three stages of professional preparation of students of agricultural profile in the conditions of higher education, the qualities that should be formed for each student: the desire for in-depth study of their profession, the development of interest in it; regular independent performance of educational tasks; honest execution of public tasks, active participation in public life; search for original, non-standard solutions to technical problems. The article emphasizes that the future specialist of agrarian industry requires a combination of deep production and technical knowledge on the one hand, and thorough knowledge of sociological issues - psychological knowledge that would allow effective management of production units and successfully work in different sectors of Ukraine . It is stated that in order to increase the effectiveness of students' education it is necessary to: know the goals of learning, that is, the final knowledge, skills and skills that they must acquire in the course of studying the disciplines; to find forms and methods of control that will allow to evaluate the degree of achievement of the goal, to understand what criteria should be followed in the organization of educational and cognitive activity; to develop programs for the organization of active conscious cognitive activity of each student for mastering the planned knowledge, skills and skills; to create in students appropriate motivation, interest and confidence in the importance and necessity of acquiring certain knowledge, skills and skills that would encourage each student to active conscious work.

SWOT ANALYSIS OF MANUFACTURING UNIT PRODUCTION PERFORMANCE IN SMK NEGRI 7 SURABAYA INCREASING THE QUALITY OF GRADUATES

The impact is that many of the SMK, SMA and MA graduates have not been able to compete in the business world and in the Industrial world especially the SMK that dominates Surabaya's open unemployment rate of 11.74 percent, from the data indicating that there is a poor relationship between education and employment. The public policy model implemented in SMKs in Surabaya including SMK N 7 Surabaya is still centralized at the central of government. The impact of these policies is the implementation of policies that seem slow and not on target. The relationship between schools and business actors also does not work well if it is based on not absorbing graduates of SMK N 7 Surabaya in the fields of work around the school environment. This research intends to examine more deeply the public policy of the management of production units in SMKs and the models that can improve the management of SMK industrial units, where later than reporting these SMK production units becomes clear, it is hoped that the performance of these production units will also increase. The public policy evaluation model which is used as the basis for this research theory is to compare the results obtained with the objectives or targets of public policy determined to assess how far a public policy can produce results. Based on the research that has been done, a conclusion can be drawn that SMK N 7 Surabaya is in an unfavourable condition in using its internal strengths to overcome internal weaknesses. The public policy model in the management of the production unit of SMK 7 N Surabaya as a whole is in the good category with average scores, an average of 77.33%.

Management and development of digital technologies in the electric power industry of Russia

The article is devoted to the development of digital technologies in the electric power industry of Russia. It is proved in the work that in recent years the issues of the industry’s transition to a qualitatively new development path, which, according to the authors of the study, should be based on the introduction of digital technologies and smart grids in the electric power industry, have become relevant. The study presented the main advantages of the Smart Grid system, which are self-regulation of the electric power industry and maintaining stability and reliability in the long term. At the same time, it was revealed that the transition to digital technologies requires the industry to form a new asset and production unit management system related both to the superstructure and the creation of new energy complex management elements. At the same time, it is expected that the introduction of Smart Grid will increase the economic, environmental, social and technological effect both for the industry and for the national economy as a whole. At the end of the study, conclusions are drawn from the results of the work done.

Hydrogen explosion incident mitigation in steam reforming units through enhanced inspection and forecasting corrosion tools implementation

Hydrogen (H2) explosion effects recently examined, are confirming the devastating loss scenarios to humans, environment, assets, and associated business interruption. H2 production is a core process in refineries used in further process steps. Steam reforming of natural gas or a mix with naphtha or LPG is a common hydrogen production technique, where the latest technologies have adopted enhanced metallurgies to minimize explosion risk and the associated maintenance cost following plant degradation owing to corrosion effects. However, corrosion rates are still high in specific areas of piping and process equipment. The aim of this paper is to present a methodology based on semi-quantitative RBI modeling according to regulations by API and recent EN standards, adopting a family of linear regression forecasting models that depict the yearly corrosion rate (per corrosion loop) of a hydrogen production steam reforming unit; this is done under different operating conditions (e.g., temperature, pressure, and fluid speed), metallurgy and other related physicochemical variables. The model is based on the examination of both ultrasonic wall thinning measurements and the examination of quantitative crosslinking total corrosion effects along with the physicochemical properties prevailing in different plant corrosion loops. The outcome of the regression analysis is an expansive family of multivariable equations describing, with a defined accuracy, the yearly corrosion rate and associated lifespan forecast per corrosion loop, and per examined part. These equations were further utilized in a custom-made database that can be used as an additional loss prevention tool by the hydrogen production unit management team. Evaluation results regarding the tool efficiency are presented in the following of this paper.

Evaluation of financial management pattern of the production unit in referral vocational school with adversary model in Yogyakarta Special Region

This study aims to determine the effectiveness of the implementation of Referral Vocational School (SMK Rujukan) program in financial management of production units in the DI. Yogyakarta province. This research was an evaluative research which described problem of financial management of production unit at SMK Rujukan. The approach used of this research were mixed methods which combined quantitative and qualitative research. The evaluation model of this research were an adversary model. An adversary evaluation model were an evaluation that seeked to uncover all the important aspects of the program being evaluated. The results showed that of the 5 SMK studied, there is only 1 SMK that had adequate financial management system of production unit, while 4 other SMK not yet adequated. Forms of protection to financial management of production units for SMK in the DI. Yogyakarta province had not been established yet. No school of the 5 schools studied, had implemented a pattern of financial management in accordance with applicable regulations.

A Model of Local Potential-Based Fashion Production Units for Troso Woven Fabrics

The development of a local potential-based fashion production unit requires the integration between the national curriculum and local values. This study aims (1) to find a model of local potential-based fashion production units for troso woven fabrics; (2) to test the validity of the local potential-based fashion production unit model for troso woven fabric; and (3) to test the effectiveness of the local potential-based fashion production unit model for troso woven fabrics. The research and development (R & D) design was employed in this study. The production unit management model developed in this study was a local potential-based management model by involving students not only in service unit but also in their management so that they can improve the competence of sewing and entrepreneurship. The results of the production unit model at Vocational High School 2 Jepara, Central Java, Indonesia showed that the model that has been validated by experts is very valid using the Critical Validity Ratio (CVR) all items get a value of 1 with a condition of 0.99 for 2 experts, so that according to the CVR, all items were categorized valid. The results of the limited trial also showed that the fashion production unit model was considered effective, which resulted from student's t-test with a significance of 0.001 <0.05. This indicated that the model could improve the competence of sewing and entrepreneurial competence of the students. The results of the local potential-based fashion production unit model of troso woven fabric were also seen from changes in student attitudes in entrepreneurship which are assessed by self-confidence, responsibility, leadership spirit, communication and enthusiasm in seeking business opportunities and increasing local potential. In addition to being able to become a reference in carrying out the activities of the production unit, the model can provide experience and entrepreneurial skills to students.

EVALUACIÓN DEL IMPACTO EN LA PRODUCTIVIDAD Y RENTABILIDAD DE LA TECNOLOGÍA TRANSFERIDA AL SISTEMA DE BOVINOS DE DOBLE PROPÓSITO DEL TRÓPICO MEXICANO

<p>The objective is to evaluate the impact on productivity and profitability of use of technological practices nutrition, reproduction, feed, health, enterprise management and management of the milking, promoted by the technical assistance received by the producers of the BDP system in the tropics of Mexico. 206 monthly information on production units (UP) dual purpose cattle was analyzed in the states of Campeche, Colima, Nayarit, Sinaloa and Veracruz who received technical assistance and training livestock during fiscal years 2011 and 2012 was captured stratification was obtained technological producers applying multivariate methods, with the resulting groups indicators milk production were estimated per cow per day (PLVD), daily weight gain (GDP), profitability (Re) and unit costs of milk (CUPL) and meat (CUPC) to assess the impact of technology through a univariate analysis and test averages. Two types of producers were identified: 1) low technological level (76%), which apply on average 33% of innovations; 2) intermediate technological level (24%), which use on average 66% of innovations. By comparing the productive and economic variables of the two types of producers, it was found that those who use more innovations get more milk production, 8% more profitability and save $ 1.42 per kg of meat produced. It is concluded that by applying more components related to animal nutrition, herd health and production unit management improves the profitability and productivity of BDP producers.</p>

The Development of Management Model of Maharani Production Unit in Akademi Kesejahteraan Sosial Ibu Kartini Semarang to Improve Competency on Knowledge, Attitude and Skill

The problem of managing the Maharani Production Unit is the weakness of the Production Unit management so that the utilization of Production Unit as a means of entrepreneurship training is not optimal. The objective of the study is to produce a valid and effective Production Unit management model. The method used in this study was Research and Development (R & D). The production unit management model was a college student-based management model that did not only involve the college students on services but also on the management so that it can improve college students' competence in the aspects of knowledge, attitude, and skills. The implementation of this model was conducted by holding selection activities for production unit members and training activities before students manage production units. Participants who were interested in developing entrepreneurship skills through the production unit and have passed the selection then they followed the training activities that were conducted in five meetings with 20 participants. The result of management model of the Maharani production unit shows that the model that has been validated by the expert, it shows very valid with the average score of 62.75. In the small trial results also shows that the management model of Maharani production unit is effective, resulting from the paired sample t test with significance of 0.001 <0.05 this indicates that the model can improve students’ competence on the student’ knowledge and skills aspects. The results of the training can also be seen from the change of students’ attitude of in entrepreneurship which is scored from the confidence, responsible, leadership spirit, the way of communicating and have passion in seeking business opportunity. Besides, it can be a reference in conducting the production units activities, the developed model can provide experience and entrepreneurship skills for students.

Manajemen Unit Produksi Menurut Persepsi Pengelola di Jurusan Bangunan SMK Negeri

This study was an attempt to know the implementation of the production unit management at the Civil Engineering Departement of State Vocational High Schools in Daerah Istimewa Yogyakarta according to the managers, executives, and teachers. Data were collected using a closed-questionnair, in-depth interview, and participant observation. A descriptive statistics was used to analyze data. The results indicated that the planning, executing, and controlling of production unit were good enough

Programa de alfabetización económica sobre conductas de emprendimiento en pobladores quechua hablantes de caseríos de Caraz

Se estudió la efectividad del programa de alfabetización económica en el desarrollo de conductas de emprendimiento en pobladores quechua hablantes de Caraz, Ancash. La alfabetización económica concebida como estrategia válida en la transmisión de saberes intergeneracionales para la formación de conceptos básicos de economía aplicados a la gestión de unidades productivas. Se empleó un diseño cuasiexperimental con pre y postprueba, y cualitativa en torno al imaginario colectivo. El programa de alfabetización económica, variable independiente, y las conductas de emprendimiento, variable dependiente; observadas en la muestra del grupo experimental constituida por colaboradores del Caserío Queral y grupo de control, padres de familia del 3er grado de la I. E. 2 de Mayo de Caraz. Se aplicó: Cuestionario de conocimiento de saberes, Registro de Observación de Conductas de Emprendimiento (ROCE-2010) y la Escala de Actitudes hacia el Emprendimiento (EAE-2010 Confiabilidad de 0,83). Mediante estadísticos descriptivos e inferenciales no paramétricos se analizaron la data. Se encontró que El programa de alfabetización económica afecta las conductas de emprendimiento, expresa asimismo en la formación de una unidad productiva que tuvo una producción comercializada y reinvertida de un producto de su expresión cultural (UNESCO, 2005).

Evaluation of Entrepreneurship in Unit Production Vocational High School (SMK) Simalungun Northern Sumatra

The study examines the implementation of production unit in vocational high school (SMK). The study was conducted using quantitative evaluation approach is descriptive and made judgments on the research products. This study was conducted in six SMK at Regency Simalungun. The population in this study is the executive Production Unit in SMK at Regency Simalungun. The research sample was taken 30 people caretaker of production unit. The results showed that; (a). In the six SMKs have become researh sample in Regency Simalungun had applied management functions with different performance quality, (b). Vision and mission management of production unit is developed in order to achieve the vision and mission of SMK, (c). Production unit at SMK of Regency Simalungun can not develop as unit which is equivallent with bussiness unit should be.

Distributed economic dispatch of embedded generation in smart grids

In a smart grid context, the increasing penetration of embedded generation units leads to a greater complexity in the management of production units. In this paper, we focus on the impact of the introduction of decentralized generation for the unit commitment (UC) problem. Unit commitment problems consist in finding the optimal schedules and amounts of power to be generated by a set of generating units in response to an electricity demand forecast. While this problem has received a significant amount of attention, classical approaches assume that these problems are centralized and deterministic. However, these two assumptions are not realistic in a smart grid context. Indeed, finding the optimal schedules and amounts of power to be generated by multiple distributed generator units is not trivial since it requires to deal with distributed computation, privacy, stochastic planning, etc. In this paper, we focus on smart grid scenarios where the main source of complexity comes from the proliferation of distributed generating units. In solving this issue, we consider distributed stochastic unit commitment problems. We introduce a novel distributed gradient descent algorithm which allows us to circumvent classical assumptions. This algorithm is evaluated through a set of experiments on real-time power grid simulator.

Information networks that generate economic value: A study on clusters of adopters of new or improved technologies and practices among oil palm growers in Mexico

The area under cultivation of oil palm has undergone considerable growth in Mexico, but yields are far below their potential. This is related to the low rate of adoption of new or improved technologies and practices in areas such as plantation management and farm administration. This study determines the factors that have an influence on adoption of new or improved technologies and practices and their relationship with the generation of economic value of oil palm. A cluster analysis of 33 key new or improved technologies and practices adopted by 104 growers was performed, and the main adoption categories and the variables influencing adoption are described. The results indicate that three clusters of growers can be discerned that differ in terms of their levels of adoption. The highest level of adoption of new or improved technologies and practices is related to higher yields and vice versa. The new or improved technologies and practices that differentiate the cluster of the advanced adopters from the cluster of the basic adopters are those related to plantation health, grower associations and production unit management. The cluster of the intermediate adopters is outstanding for their levels of adoption of new or improved technologies and practices in the aspects of plant nutrition, harvest, and genetics and reproduction. The advanced adopters set up better links for getting information, generally from their extensionists. The three clusters each exhibit a great degree of homophily, indicating little information flow between the different clusters of growers, while these can learn from each other. These results make it evident that better articulation among different clusters of growers and other actors should be encouraged, and that diversified and tailor-made extension strategies should be designed to optimally support different clusters of growers.

Difusão de tecnologia e sexismo nas Ciências Agrárias

Este trabalho analisa a percepção predominante, no meio rural, de que a tecnologia é um produto relacionado ao universo masculino. Nesta pesquisa, são trazidos dados que evidenciam o grande distanciamento das mulheres rurais do acesso ao conhecimento tecnológico, produzido e difundido dentro da universidade, que está direcionado para a melhora da qualidade de vida e para as possibilidades de aumento na geração de renda no meio rural, mas ao qual elas ainda têm acesso insignificante. Trabalhou-se, nesta pesquisa, com a coleta de dados obtidos nos cursos oferecidos durante a Semana do Fazendeiro, ao longo de quatro anos, de 2004 a 2007, correlacionando a cada um dos cursos oferecidos a frequência de homens e mulheres nestes. Concluímos que o sexismo tecnológico se perpetua nos modelos de gestão das unidades produtivas no meio rural, que consideram a mulher em uma condição hierárquica de complementaridade e não como cogestora da unidade produtiva familiar, condição que lhe restringe o acesso a informações e conhecimentos técnicos, gerenciais, ambientais e de organização de grupos.

Evolution des relations entre l’agriculture et l’élevage dans les savanes d’Afrique de l’Ouest et du Centre

Evolution of relations between agriculture and breeding was studied in peanut basin in Senegal and cotton area in northern Cameroon. Joint development of animal traction, peanut and cotton furthered the emergence of mixed systems (agriculture and breeding). The producer’s strategy of capitalization in cattle is still existing but conflicts in access to natural resources and evolution of urban markets let them to intensify breeding systems, especially in high populated areas located near cities. To make these evolutions sustainable, it’s necessary to enhance vegetal biomass production and to reduce losses of water and soil nutrients. Weaknesses of approaches based only on technology transfer have been shown. Research must get involved more actively in developing different options with farmers to manage production areas (from farm to region). At the end, a renewed framework for analysis and intervention is proposed. It combines 3 complementary approaches related to (i) technical farming systems, (ii) management of production units and organization of commodity chains, and (iii) collective resource management.