Dynamic Adjusting Mechanism of Counterbalance in Beam-Pumping Unit and its Kinetic Analysis

2013 ◽  
Vol 455 ◽  
pp. 274-278 ◽  
Author(s):  
Xiao Qing Kang ◽  
Tao Ren ◽  
Wen Tao Qu
Keyword(s):  
Kinetic Model ◽  
Kinetic Analysis ◽  
Transmission Mechanism ◽  
Power Cost ◽  
Data Comparison ◽  
Increase Productivity ◽  
Pumping Unit ◽  
Polished Rod

The purpose of conventional counterbalance mechanism featuring a fixed counterbalance torque is to balance the nonuniformity of polished rod load. Therefore, it cannot satisfy the demand of polish rod load which changes with well-condition and then leads to increase of power cost for decreasing quality of balance. This paper presents a new dynamic adjusting mechanism of counterbalance in beam-pumping unit that can adjust the counterbalance torque automatically without stopping the unit according to the new balance parameters derived by analyzing the variation of well-condition and increase productivity at the same time. A data comparison based on the corresponding kinetic model of transmission mechanism is also discussed.

Modeling of Dynamic Loads on the Polished Rod of Pumping Unit in Case of Mulfunction of Rod Pump Operating

2014 ◽  
Vol 10 ◽  
pp. 95-101
Author(s):  
A.S. Topolnikov
Keyword(s):  
Multiphase Flow ◽  
Satisfactory Agreement ◽  
Model Simulation ◽  
Theoretical Modeling ◽  
Dynamic Loads ◽  
Plunger Pump ◽  
Proposed Model ◽  
Pumping Unit ◽  
Polished Rod

The paper presents the results of theoretical modeling of joined movement of pump rods and plunger pump and multiphase flow in a well for determination of dynamic loads on the polished rod of pumping unit. The specificity of the proposed model is the possibility of taking into account for complications in rod pump operating, such as leakage in valve steam, presence of gas and emulsion, incorrect fitting of plunger inside the cylinder pump. The satisfactory agreement of results of the model simulation with filed measurements are obtained.

scholarly journals Stochastic Kinetic Analysis of Developmental Pathway Bifurcation in Phage λ-Infected Escherichia coli Cells

Genetics ◽  
1998 ◽  
Vol 149 (4) ◽  
pp. 1633-1648 ◽  
Author(s):  
Adam Arkin ◽  
John Ross ◽  
Harley H McAdams
Keyword(s):  
Gene Expression ◽  
Kinetic Model ◽  
Kinetic Analysis ◽  
Molecular Level ◽  
Host Responses ◽  
Statistical Thermodynamic ◽  
Regulatory Systems ◽  
Regulatory Circuit ◽  
Phenotype Selection ◽  
Decision Circuit

Abstract Fluctuations in rates of gene expression can produce highly erratic time patterns of protein production in individual cells and wide diversity in instantaneous protein concentrations across cell populations. When two independently produced regulatory proteins acting at low cellular concentrations competitively control a switch point in a pathway, stochastic variations in their concentrations can produce probabilistic pathway selection, so that an initially homogeneous cell population partitions into distinct phenotypic subpopulations. Many pathogenic organisms, for example, use this mechanism to randomly switch surface features to evade host responses. This coupling between molecular-level fluctuations and macroscopic phenotype selection is analyzed using the phage λ lysis-lysogeny decision circuit as a model system. The fraction of infected cells selecting the lysogenic pathway at different phage:cell ratios, predicted using a molecular-level stochastic kinetic model of the genetic regulatory circuit, is consistent with experimental observations. The kinetic model of the decision circuit uses the stochastic formulation of chemical kinetics, stochastic mechanisms of gene expression, and a statistical-thermodynamic model of promoter regulation. Conventional deterministic kinetics cannot be used to predict statistics of regulatory systems that produce probabilistic outcomes. Rather, a stochastic kinetic analysis must be used to predict statistics of regulatory outcomes for such stochastically regulated systems.

scholarly journals Innovation Trajectories for a Society 5.0

Data ◽  
2021 ◽  
Vol 6 (11) ◽  
pp. 115
Author(s):  
Fabio De Felice ◽  
Marta Travaglioni ◽  
Antonella Petrillo
Keyword(s):  
Industry 4.0 ◽  
Well Being ◽  
Enabling Factors ◽  
Interpretive Structural Modeling ◽  
Main Driver ◽  
Increase Productivity ◽  
New Perspective ◽  
Hierarchy Process ◽  
The Internet Of Things

Big Data, the Internet of Things, and robotic and augmented realities are just some of the technologies that belong to Industry 4.0. These technologies improve working conditions and increase productivity and the quality of industry production. However, they can also improve life and society as a whole. A new perspective is oriented towards social well-being and it is called Society 5.0. Industry 4.0 supports the transition to the new society, but other drivers are also needed. To guide the transition, it is necessary to identify the enabling factors that integrate Industry 4.0. A conceptual framework was developed in which these factors were identified through a literature review and the analytical hierarchy process (AHP) methodology. Furthermore, the way in which they relate was evaluated with the help of the interpretive structural modeling (ISM) methodology. The proposed framework fills a research gap, which has not yet consolidated a strategy that includes all aspects of Society 5.0. As a result, the main driver, in addition to technology, is international politics.

scholarly journals DIAGNÓSTICO DE CANTEIROS DE OBRAS SITUADOS NA CONURBAÇÃO CRAJUBAR NO CARIRI CEARENSE

2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Antônio Italcy de Oliveira Júnior ◽  
Michelly Matos Pereira ◽  
Celme Torres Ferreira da Costa
Keyword(s):  
Diagnostic Method ◽  
Arithmetic Mean ◽  
Great Good ◽  
Construction Sites ◽  
The Sustainable Development ◽  
Mixed Use ◽  
Increase Productivity ◽  
And Storage ◽  
Means Of Production

RESUMO: No momento de instabilidade econômica em que se encontra o país, ações que minimizem os gastos e que aumentem a produtividade na construção civil visando ao desenvolvimento sustentável dos meios de produção estão cada vez mais sendo solicitadas. Com o intuito de realizar um diagnóstico da disposição, organização e práticas nos canteiros de obra da região do Crajubar, foram estudadas dez construções em execução na região. A amostra selecionada contemplava edificações horizontais e verticais, com finalidade de uso comercial, residencial e mista. Os dados foram obtidos a partir do método de diagnóstico que consiste na aplicação de uma lista de verificação (check-list) padronizada, que contemplava três grupos a serem analisados: instalações provisórias, segurança na obra e movimentação e armazenagem de materiais. Para a visualização e identificação de falhas nos canteiros foi feito um registro fotográfico de itens pré-determinados. De posse das informações coletadas foram atribuídas notas para os grupos, calculada a nota global (que é a média aritmética das notas de grupo) e as obras foram distribuídas em quatro categorias: ótimas, boas, regulares e ruins. As obras horizontais obtiveram as piores notas, entre 4,01 e 6, enquanto as obras verticais que apresentavam políticas de gestão de qualidade se destacaram com as melhores notas, entre 8,01 e 10. O tipo de obra foi o fator que mais influenciou na qualidade dos canteiros de obras avaliados no Crajubar cearense.ABSTRACT: At a time of economic instability in the country, actions that minimize expenditures and increase productivity in civil construction aimed at the sustainable development of the means of production are increasingly being requested. In order to make a diagnosis of the layout, organization and practices in the construction sites of the Crajubar region, ten constructions were studied in the region. The sample selected included horizontal and vertical buildings, for commercial, residential and mixed use. The data were obtained from the diagnostic method, which consists of the application of a standardized checklist, which included three groups to be analyzed: temporary installations, handling and storage of materials. Along with this list, a photographic record of predetermined items was made for the visualization and identification of defects in the construction. From the information collected, the group notes and a global grade (the arithmetic mean of the group notes) were assigned and the works were distributed into four categories: great, good, regular and bad. The horizontal construction obtained the worse notes, between 4.01 and 6, while the vertical construction that presented policies of quality management stood out with the best notes, between 8,01 and 10. The type of construction was the factor that most influenced the quality of the construction sites evaluated in Crajubar cearense.

scholarly journals Model Disiplin Kerja, Iklim Organisasi dan Produktivitas Kerja Pegawai

2018 ◽  
Vol 9 (2) ◽  
pp. 85-92
Author(s):  
Zulfikar Ikhsan ◽  
Suwatno Suwatno ◽  
Budi Santoso
Keyword(s):  
Organizational Climate ◽  
Linear Regression Analysis ◽  
Work Productivity ◽  
Multiple Linear Regression Analysis ◽  
Regional Office ◽  
Managerial Implication ◽  
High Productivity ◽  
Productivity Increase ◽  
Increase Productivity

AbstractDemands for productivity are getting higher. The tight competition among retailers causes companies that do not have high productivity to compete. Quality of HR is the key to success. The purpose of the study was to obtain an explanation of the influence of work discipline and organizational climate on the work productivity of employees at PT. Surya Donasin Regional Office Cianjur, which numbered 59 employees randomly selected. The research method uses explanatory survey with multiple linear regression analysis. Based on the results of the research that productivity as one of the keys to compete in the retail industry is determined by work discipline and organizational climate that supports work productivity. Labor productivity is determined by internal and external dynamics in the form of organizational climate. The managerial implication is that the lack of productivity over employees causes low company productivity. Increase productivity as an option to support work productivity.Keywords : Work discipline; organizational climate; productivity; retailer industry AbstrakTuntutan terhadap produktivitas semakin tinggi. Persaingan yang cukup ketat diantara perusahaan retailer menyebabkan perusahaan yang tidak memiliki produktivitas tinggi kalah bersaing. Kualitas SDM menjadi kunci keberhasilan. Tujuan penelitian untuk memperoleh penjelasan tentang pengaruh disiplin kerja dan iklim organisasi terhadap produktivitas kerja para pegawai di PT. Surya Donasin Regional Office Cianjur yang berjumlah 59 pegawai yang dipilih secara acak. Metode penelitian menggunakan survey explanatory dengan analisis regresi linear berganda. Berdasarkan hasil penelitian bahwa produktivitas sebagai salah satu kunci untuk bersaing dalam industri retail ditentukan oleh disiplin kerja dan iklim organisasi yang mendukung produktivitas kerja. Produktivitas tenaga kerja ditentukan oleh dinamika internal dan eksternal berupa iklim organisasi. Implikasi manajerial adalah lemahnya produktivitas pegawai menyebabkan produktivitas perusahaan rendah. Meningkatkan produktivitas sebagai pilihan untuk mendukung produktivitas kerja.Kata Kunci: Disiplin kerja; iklim organisasi; produktivitas; industri retailer

scholarly journals Model pengembangan ekonomi lokal (PEL) berbasis produktivitas kopi arabika spesialti di Kabupaten Simalungun

2019 ◽  
Author(s):  
Jef Rudiantho Saragih
Keyword(s):  
Net Income ◽  
Development Programs ◽  
Poverty Level ◽  
Arabica Coffee ◽  
Agriculture Sector ◽  
Specialty Coffee ◽  
Coffee Farm ◽  
Increase Productivity ◽  
And Control

Specialty arabica coffee productivity could be improved by land extensification, optimizing the use of family labor, increase cost of organic and chemicals fertilizer, land use (intercropping and/or multistrata), increase in the price of parchment, increase in premium coffee prices, increase in liquidity of financial of household farmer, an increase in the practice of coffee pruning, and control of coffee berry borer (CBB). The application of good agriculture practices (GAPs) can increase the quality of the coffee produced in the Simalungun highlands. Increased productivity and quality is very prospective in the LED based on specialty coffee, mainly farmers' net income and local employment indicator. As the acceleration factors to increase productivity and quality of specialty arabica coffee is necessary: (1) re-mapping the areas of unique production, including the revision of Kepmenhut 44/2005; and (2) introduce and implementation of selected development programs at the farm and the regional level. Specialty arabica coffee contributed by 3.27%; 5.99%; and 13.17o% in the regional income of Simalungun District, agriculture sector, and estate crop subsector, respectively. Base on indicators of absorption of local labor, specialty arabica coffee is able to contribute about 8.29,%; 14,47%; and 24,86%o in the total workforce, agriculture sector, and estates crop subsector. Specialty arabica coffee farm able to give a US$2.05 per capita per day, so it is able to reduce the poverty level in the rural region. It is recommended that the Simalungun local government adopt the model of LED specialty arabica coffee commodity-based.

scholarly journals ANALYSIS OF QUALITY OF WORKLIFE (QWL) IMPLEMENTATION AGAINST JOB SATISFACTION AND COMMITMENT OF THE EMPLOYEES.

2018 ◽  
Vol 1 (01) ◽  
pp. 9
Author(s):  
Indah Kusuma Hayati
Keyword(s):  
Job Satisfaction ◽  
Structural Equation ◽  
Employee Performance ◽  
Employee Commitment ◽  
Equation Model ◽  
Quality Of Work Life ◽  
Employee Job Satisfaction ◽  
Quality Of Worklife ◽  
Increase Productivity

Abstract. Increased productivity needs being in line with the increase in employee performance. To be able to improve employee performance, companies must create working conditions that offer incentives for employees to satisfy them with the system running in the company(????). The purpose application of Quality of Work Life (QWL) in an enterprise is to improve employee satisfaction on the job(???). Employee job satisfaction is one important aspect to consider in efforts to improve the human resources quality of an enterprise. Employees who have high job satisfaction, will generally have a high commitment to the company. High employee commitment will give beneficial contribution to the company to increase productivity of both employees and companies. This study aims to analyze the effect of the QWL application on job satisfaction and employee commitment as well as analyzing the effect of job satisfaction on employee commitment. The study is conducted by giving questionnaire to 120 employees SBU (Strategic Business Unit) 1 PT. PGN, which is present in three areas, namely Hosbun, Bogor and Jakarta East. Hypothesis testing method using the model Structural Equation Model (SEM) with PLS.The results of the analysis indicate that the application of QWL hypothesis has no effect on job satisfaction of employees. Application of QWL and job satisfaction significantly influence employee commitment. The better implementation of QWL and the higher levels of job satisfaction will increase employee commitment to the company.

scholarly journals Virtual Optimization of Machine Tools and Production Processes

2007 ◽  
Vol 1 (2) ◽  
pp. 136-140 ◽  
Author(s):  
Jochen Bretschneider ◽  
◽  
Thomas Menzel
Keyword(s):  
Life Cycle ◽  
Machine Tools ◽  
Cost Effective ◽  
Processing Times ◽  
Virtual Production ◽  
Machine Productivity ◽  
Increase Productivity ◽  
Market Leadership ◽  
Faster Development

Faster development of innovative machine tools, shorter processing times, improved surface quality of workpieces, higher machine productivity – these are just a few of the wishes and demands of machine manufacturers and end-users. Time-to-market is decisive; in some industries, six months too late on the market can already be decisive in losing the race for market leadership. The key to success lies in virtual techniques. These are an extremely cost-effective way to increase productivity in all phases of the machine tools life cycle. Siemens AG, the leading provider for control and drive technology, sees itself as a partner for the whole machine tool industry and offers four phases of simulation support which cover the entire life cycle of a machine: Mechatronic Support for simulation for machine development, Machine Simulator for supporting commissioning, Virtual Production for the optimization of production and, finally, Virtual NC Kernel (VNCK) for the testing of NC part programs at the end-user.

Organizational Effects of Information Technology

2010 ◽  
pp. 157-173
Author(s):  
Johan Tetzlaff ◽  
Jonny Holmström
Keyword(s):  
Organizational Change ◽  
Lean Manufacturing ◽  
Paper Mill ◽  
Production Quality ◽  
Organizational Effects ◽  
Increase Productivity ◽  
Product And Process ◽  
Definition Of ◽  
The Impact

The aim of this chapter is to better understand the enabling and inhibiting impacts IT has on lean manufacturing. This chapter provides a rich picture of a paper mill producing liner reels and the impact of a reel administration system on the manufacturing process. It is important that an IT tool supporting lean manufacturing reflects its organization. When it does the IT tool can act as an enabler of organizational change that in turn increase productivity and the production quality, when it fails to do so it inhibits organizational change and hampers the quality of production. The conclusion is that framing the definition of high production quality regarding product and process is important and that teambuilding would be a contribution to this end by enhancing perspective taking among the employees.

scholarly journals Highlights methodology of time characteristics optimization for plastic products production

2018 ◽  
Vol 7 (1.8) ◽  
pp. 165 ◽  
Author(s):  
Rami Matarneh ◽  
Svitlana Sotnik ◽  
Zhanna Deineko ◽  
Vyacheslav Lyashenko
Keyword(s):  
Casting Process ◽  
Time Optimization ◽  
The Matrix ◽  
Casting Cycle ◽  
Increase Productivity ◽  
Plastic Products

Basic elements of casting process and its main stages are considered. Features of time characteristics for production of plastic products are investigated. The main stages in the methodology of time optimization characteristics for the production of plastic products are given. The proposed methodology allows to increase productivity and optimize the time characteristics of the process of production of plastic products, taking into account the preservation of the quality of plastic products which is achieved by reducing the casting cycle. At the same time the considered methodology considers plunger time forward and backward, the "course" of the nozzle time, the time of extraction of the product from the matrix during the production of plastic products.

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