scholarly journals EVALUASI PENERAPAN BUILDING INFORMATION (BIM) 5D TERHADAP WAKTU REVIEW UNTUK OPTIMALISASI WAKTU DAN BIAYA

2020 ◽  
Vol 5 (1) ◽  
pp. 25-35
Author(s):  
Rio Hamdani
Keyword(s):  
Construction Management ◽  
Cost Efficiency ◽  
Qualitative Approach ◽  
Work Schedule ◽  
Review Time ◽  
Management Consultants ◽  
Design Changes ◽  
Material Purchases ◽  
Building Information ◽  
The Cost

RIO HAMDANI, NIM 1410246101. Evaluation of the Implementation of Building Information (BIM) 5D on Review Time For Optimizing Time And Costs, supervised by Sigit Sutikno and Manyuk Fauzi.   Design review efficiency to obtain the changes order document is very important to be completed at the beginning of the project and not overlapping to the implementation schedule. One cause of the addendum or CCO is a drawings error that use 2D CAD software suchas mismatches design, design changes, specification changes, design errors and drawings that are less detailed and complete so that it affects the work schedule and material purchases. This research was conducted using a descriptive qualitative approach where data were obtained from interviews and questionnaires on four competent personnel both from the contractor and construction management consultants to then be compared with data obtained from BIM practitioners. With this research it is proven that the use of BIM greatly helps the efficiency of review time so that it affects the overall project time achievements. The efficiency of review time can be achieved by 52.94%, the calculation of volume and cost can be improved by 42%. While the cost efficiency and number of personnel are 9% and 9.5%.   Keywords: Time, Efficiencies, Reviews, BIM

A generalized fuzzy cost efficiency model

2020 ◽  
Vol 54 (6) ◽  
pp. 1775-1791
Author(s):  
Nazila Aghayi ◽  
Samira Salehpour
Keyword(s):  
Cost Efficiency ◽  
Minimum Cost ◽  
Extensive Literature ◽  
Data Envelopment ◽  
Fuzzy Environment ◽  
Decision Making Unit ◽  
Production Possibility Set ◽  
Fuzzy Cost ◽  
The Cost ◽  
Generalized Cost

The concept of cost efficiency has become tremendously popular in data envelopment analysis (DEA) as it serves to assess a decision-making unit (DMU) in terms of producing minimum-cost outputs. A large variety of precise and imprecise models have been put forward to measure cost efficiency for the DMUs which have a role in constructing the production possibility set; yet, there’s not an extensive literature on the cost efficiency (CE) measurement for sample DMUs (SDMUs). In an effort to remedy the shortcomings of current models, herein is introduced a generalized cost efficiency model that is capable of operating in a fuzzy environment-involving different types of fuzzy numbers-while preserving the Farrell’s decomposition of cost efficiency. Moreover, to the best of our knowledge, the present paper is the first to measure cost efficiency by using vectors. Ultimately, a useful example is provided to confirm the applicability of the proposed methods.

ANALISIS PENGARUH BIAYA OPERASIONAL PADA PERUSAHAAN PENERBANGAN NASIONAL

2017 ◽  
Vol 1 (2) ◽  
pp. 81-107
Author(s):  
Dheny Biantara
Keyword(s):  
Value Chain ◽  
Cost Efficiency ◽  
Cost Reduction ◽  
Cost Leadership ◽  
Oil Pricing ◽  
The Cost ◽  
Operation Flexibility ◽  
Airline Maintenance

Summarized Indonesian airline executive views on the reason for the cost problem in mayor airline andon the potential areas and measures of cost reduction in airline operation. Present an introductionsurvey where 3 executives from 3 Indonesian airlines were respondent. In the executive opinion the costproblem in mayor Indonesian airline is primarily due to fuel and oil pricing and money currency. Of thevarious function in airline maintenance was seen as least cost efficiency, whereas flight operation wasseen as an area with most potential for cost reduction. Indonesian airline had made route and fleetchanges after the beginning of 2011 to reduce cost, concludes from the analisys result havingprivatization would be an important step towards more efficient airline operation. Flexibility fromIndonesian airline regulatory would be very much welcome and the value chain concept to improveIndonesian airline having competitive adventage and cost leadership differentiation.

A seven year plan for upgrading the 200.000 p.e. treatment plant of Uppsala, Sweden

1994 ◽  
Vol 29 (12) ◽  
pp. 117-127
Author(s):  
Jan Erik Lind ◽  
Ernst Olof Swedling
Keyword(s):  
Cost Efficiency ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Working Environment ◽  
Regional Environment ◽  
Nitrogen Reduction ◽  
Total Investment ◽  
Close Cooperation ◽  
The Cost

The sewage treatment plant of Uppsala was originally built in 1946 and has since then been extended and upgraded several times up to 1972 when the last major upgrading was completed. In 1987 it was decided to renew the treatment plant for at least another 20-30 years of operation and to upgrade the biological process to include nitrogen reduction. A 7 year plan covering some 18 items with a total investment cost of approximately 120 MSEK was set in action during 1987. The aim was to raise the cost efficiency by introducing modern techniques, new machinery, a better working environment and a better understanding of the processes used. The need to keep the plant in operation during reconstruction work has caused difficulties, delays and unforseen costs but a close cooperation between all parties concerned (operators, contractors, engineers and the regional environment administration) has solved most of the problems. Experiences so far include an improved effluent quality, a better cost efficiency, a healthier and more engaged operating staff. A research team has been engaged to develop and introduce a nitrogen reduction scheme in the activated sludge process. This has been a challenging and fruitful experience.

scholarly journals Cost-efficiency assessments of marine monitoring methods lack rigor—a systematic mapping of literature and an end-user view on optimal cost-efficiency analysis

2021 ◽  
Vol 193 (7) ◽  
Author(s):  
Heini Hyvärinen ◽  
Annaliina Skyttä ◽  
Susanna Jernberg ◽  
Kristian Meissner ◽  
Harri Kuosa ◽  
...  
Keyword(s):  
Comparative Studies ◽  
Cost Efficiency ◽  
Cost Benefit ◽  
Marine Ecosystems ◽  
Actual Cost ◽  
Monitoring Methods ◽  
Monitoring Method ◽  
Marine Monitoring ◽  
The Status ◽  
The Cost

AbstractGlobal deterioration of marine ecosystems, together with increasing pressure to use them, has created a demand for new, more efficient and cost-efficient monitoring tools that enable assessing changes in the status of marine ecosystems. However, demonstrating the cost-efficiency of a monitoring method is not straightforward as there are no generally applicable guidelines. Our study provides a systematic literature mapping of methods and criteria that have been proposed or used since the year 2000 to evaluate the cost-efficiency of marine monitoring methods. We aimed to investigate these methods but discovered that examples of actual cost-efficiency assessments in literature were rare, contradicting the prevalent use of the term “cost-efficiency.” We identified five different ways to compare the cost-efficiency of a marine monitoring method: (1) the cost–benefit ratio, (2) comparative studies based on an experiment, (3) comparative studies based on a literature review, (4) comparisons with other methods based on literature, and (5) subjective comparisons with other methods based on experience or intuition. Because of the observed high frequency of insufficient cost–benefit assessments, we strongly advise that more attention is paid to the coverage of both cost and efficiency parameters when evaluating the actual cost-efficiency of novel methods. Our results emphasize the need to improve the reliability and comparability of cost-efficiency assessments. We provide guidelines for future initiatives to develop a cost-efficiency assessment framework and suggestions for more unified cost-efficiency criteria.

scholarly journals Cost Analysis of a Novel Method for Ecological Compensation—A Study of the Translocation of Dead Wood

2021 ◽  
Vol 13 (11) ◽  
pp. 6075
Author(s):  
Ola Lindroos ◽  
Malin Söderlind ◽  
Joel Jensen ◽  
Joakim Hjältén
Keyword(s):  
Cost Efficiency ◽  
Dead Wood ◽  
Road Transportation ◽  
Ecological Value ◽  
Ecological Compensation ◽  
Work Time ◽  
Delivery Times ◽  
Novel Method ◽  
Cost Efficient ◽  
The Cost

Translocation of dead wood is a novel method for ecological compensation and restoration that could, potentially, provide a new important tool for biodiversity conservation. With this method, substrates that normally have long delivery times are instantly created in a compensation area, and ideally many of the associated dead wood dwelling organisms are translocated together with the substrates. However, to a large extent, there is a lack of knowledge about the cost efficiency of different methods of ecological compensation. Therefore, the costs for different parts of a translocation process and its dependency on some influencing factors were studied. The observed cost was 465 SEK per translocated log for the actual compensation measure, with an additional 349 SEK/log for work to enable evaluation of the translocation’s ecological results. Based on time studies, models were developed to predict required work time and costs for different transportation distances and load sizes. Those models indicated that short extraction and insertion distances for logs should be prioritized over road transportation distances to minimize costs. They also highlighted a trade-off between costs and time until a given ecological value is reached in the compensation area. The methodology used can contribute to more cost-efficient operations and, by doing so, increase the use of ecological compensation and the benefits from a given input.

Bringing Ergonomics to the Design of a Behavioural Care Unit

2000 ◽  
Vol 44 (8) ◽  
pp. 8-11
Author(s):  
Jacqueline B. Barnett
Keyword(s):  
Design Process ◽  
Iterative Process ◽  
User Needs ◽  
Work Processes ◽  
Team Members ◽  
Early Design ◽  
Design Changes ◽  
Final Design ◽  
The Individual ◽  
The Cost

The application of ergonomics is important when considering the built environment. In order to create an environment where form follows function, a detailed understanding of the tasks performed by the individuals who will live and work in the facility is required. Early involvement in the project is key to maximizing the benefit of ergonomics. At Sunnybrook and Women's College Health Sciences Centre in Toronto, Canada, this early intervention was embraced during the design process of a behavioural care unit for aggressive patients. The ergonomist was involved in three phases of design; user needs analysis, block schematics and detailed design. The user needs and characteristics were established using a combination of focus groups, interviews, direct observation, task analysis and critique of current working environments. The challenge was to present the information to the design team in a useful manner. The format chosen was a modification of Userfit (Poulson 1996) that outlined the various characteristics of the patient group and the design consequences with “what does this mean for me” statements. During the block schematics phase an iterative design process was used to ensure that the ergonomic principles and the user needs were incorporated into the design. Ergonomic input was used in determining the room sizes and layout and to ensure work processes were considered. Simple mock-ups and anthropometric data assisted in illustrating the need for design changes. Examples that highlight the areas of greatest impact of ergonomic intervention include the patient bathrooms, showers and tub room. Significant changes were made to the design to improve the safety of the work and living space of the end users. One of the greatest challenges was having an appreciation for the individual goals of the team members. Ensuring there was adequate space for equipment and staff often resulted in recommendations for increased space. This in turn would increase the cost of the project. The architect and, later in the project, the engineer had goals of bringing the project in on budget. The final design was very much a team effort and truly die result of an iterative process. The sum of the individual contributions could not match the combined efforts. It was only through the ergonomic contributions in this early design phase that the needs of the staff, patients and families could be so well represented. The success of the iterative process provides the foundation for bringing ergonomics considerations into the early design stages of future projects.

Nafkah Sebagai Konsekuensi Logis Pernikahan

AL-HUKAMA ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 218-242
Author(s):  
Darmawan Darmawan
Keyword(s):  
Logical Consequence ◽  
Intimate Relationship ◽  
Qualitative Approach ◽  
Children's Education ◽  
Marriage Contract ◽  
Children’S Education ◽  
Household Costs ◽  
The Cost ◽  
Husband And Wife

This research aims to find out what are the forms of zahir (material) and inner (non-material) livelihood that a husband must give to his wife? Is the living provided by the husband because of the obedience of the wife or because of the marriage contract? By using a qualitative approach. Zahir livelihoods are related to basic daily necessities, which can be classified as الكسوة (clothing), الطعام (food) and السكن (board), household costs and maintenance, the cost of children's education. While the inner livelihood can be classified as: 1) Husband teaches the values of tauhid, morality and worship. 2) Husband treats wife well, gently. 3) Husband gives sovereignty to wife to interact with society. 4) The husband gives an explanation of what the wife is lacking. 5) Having an intimate relationship between husband and wife. Livelihood is the logical consequence of the marriage contract, both zahir and inner. Zahir is a gift from the husband that must be given to the wife when the marriage contract is completed, provided that they both exercise their rights and obligations. If a wife does not fulfill her obligations as a wife, then the husband is not obliged to provide zahir support to his wife. Meanwhile, the inner livelihood is the living that the husband must give to the wife from the completion of the marriage contract until the end of the marriage, whether the wife is obedient or not.

scholarly journals A Re-Examination of Multistage Economies in Hog Farming

2017 ◽  
Vol 15 (2) ◽  
Author(s):  
Joshua D. Parcel ◽  
John R. Schroeter ◽  
Azzeddine M Azzam
Keyword(s):  
Resource Management ◽  
Cost Function ◽  
Cost Efficiency ◽  
Production Data ◽  
Hog Production ◽  
Current Trends ◽  
Production Practices ◽  
The Cost ◽  
The U.S ◽  
Agricultural Resource Management Survey

AbstractCurrent trends in the structure of hog production in the U.S. are toward facilities that are not only larger, but also more likely to be specialized, carrying out only some of the vertically linked phases of production in the same facility. This paper investigates the cost efficiency incentives for these changes by estimating a multistage cost function for hog production. Data are from the Hog Production Practices and Costs portion of the USDA’s 2004 Agricultural Resource Management Survey.

scholarly journals Comparison of Cement-Based and Polymer-Based Concrete Pipes for Analysis of Cost Assessment

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Orhan Bozkurt ◽  
Mehmet İslamoğlu
Keyword(s):  
Cost Effectiveness ◽  
Construction Industry ◽  
Cost Efficiency ◽  
Mechanical Efficiency ◽  
Polymer Concrete ◽  
Cost Assessment ◽  
New Techniques ◽  
Concrete Pipes ◽  
The Cost ◽  
Innovative Techniques

As the variety of materials utilized in construction industry has expanded, new techniques have been used in order to optimize the quality and efficiency of output. Therefore, recent innovations taking place in the construction industry led researchers to increase the mechanical efficiency of the output more than the cost effectiveness of it. However, especially professionals experiencing in the industry look into the cost effectiveness of the work. In other words, they also want researchers to justify the innovative techniques economically. The aim of this study is to provide a comparative analysis of the cost efficiency of polymer concrete used to manufacture durable and long-lasting reinforced concrete structures.

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