A Model for Determining the Cost of National Airspace System Maintenance Service Levels

2005 ◽  
Author(s):  
Myron Hecht
Keyword(s):  
National Airspace System ◽  
Service Levels ◽  
Maintenance Service ◽  
System Maintenance ◽  
The Cost

Cost assessment of the bus fleet technical maintenance

2019 ◽  
Vol 39 (2) ◽  
pp. 90-95
Author(s):  
V. V. Turgeneva ◽  
V. D. Sekerin
Keyword(s):  
Cost Evaluation ◽  
Cost Assessment ◽  
Effective Management ◽  
Structure Investigation ◽  
Service Cost ◽  
Technical Maintenance ◽  
Maintenance Service ◽  
The Cost ◽  
Operating Company ◽  
Bus Transport

To assess the effectiveness of bus fleet technical maintenance, service cost evaluation should be organized. This cost analysis is essential for effective management at automobile operating company. The article describes the bus transport position in Moscow transport economy. The importance of technical maintenance in a bus transport system is defined. Special attention is given to the cost structure investigation.

Design for Maintenance: How Kms Document Linking Decisions Affect Maintenance Effort and Use

2014 ◽  
Vol 29 (4) ◽  
pp. 312-326 ◽  
Author(s):  
Alan R Dennis ◽  
Binny M Samuel ◽  
Kelly McNamara
Keyword(s):  
Information System ◽  
System Development ◽  
Management Systems ◽  
Information System Development ◽  
Web Based ◽  
Useful Knowledge ◽  
Design Considerations ◽  
Dynamic Content ◽  
System Maintenance ◽  
The Cost

Information system maintenance is an important aspect of information system development, especially in systems that provide dynamic content, such as Web-based systems and Knowledge Management Systems (KMS). Design for Maintenance (DFM) is an approach that argues that maintenance effort should be considered during the design of information systems in addition to the usual system design considerations. This research examines how the design of links among knowledge documents in a KMS affects both their maintenance and use. We argue that providing links among knowledge documents increases the cost of maintenance because when a document changes, the documents that link to and from that document are more likely to need changes. At the same, linking knowledge documents makes it easier to locate useful knowledge and thus increases use. We examine this tension between use and maintenance using 10 years of data from a well-established KMS. Our results indicate that as the number of links among documents increases, both maintenance effort and use for these documents increase. Our analyses suggest two DFM principles for dynamic content in practice. First, knowledge coupling (i.e., linking) to documents internal to the KMS rather than sources external to the KMS better balances maintenance effort and use. Second, designing small, knowledge cohesive documents (e.g., 250-350 words) leads to the best balance between maintenance effort and use.

Software for XRD

1993 ◽  
Vol 37 ◽  
pp. 7-12
Author(s):  
Q. Johnson
Keyword(s):  
The Past ◽  
System Maintenance ◽  
Time Changes ◽  
The Cost

PC software for XRD is strongly influenced by the cost of the hardware. Contrasted to mainframe and mini platforms, PC's are essentially free, or at least much less expensive than maintenance contracts for the hardware we've used in the past. But when we get our own computer, we discover that much more time goes into tasks others did before such as system maintenance. PC software needs to be simple to use yet very powerful, so we can recover some of that time. Changes have been made. Much more remains to be done and that change is coming fast.

More Effective Winter Maintenance Method for Cycleways

2003 ◽  
Vol 1824 (1) ◽  
pp. 115-122 ◽  
Author(s):  
A. Bergström
Keyword(s):  
Field Studies ◽  
Service Level ◽  
Environmental Benefits ◽  
Service Levels ◽  
Winter Maintenance ◽  
Road Condition ◽  
Maintenance Service ◽  
Cycling Frequency ◽  
Survey Interviews ◽  
Personal Travel

Increased cycling as a means of personal travel could generate environmental benefits if associated with a corresponding decrease in car-based transport. For promoting cycling during winter, the maintenance service level of cycleways is of importance. Earlier studies indicated that the Swedish public is unsatisfied with the service levels provided on cycleways during winter. In Sweden, cycleways normally are cleared of snow through plowing and are gritted for skid control. Field studies tested an unconventional winter maintenance method that uses a power broom for snow clearance and salt for deicing. The field studies were evaluated through road-condition observations, measurements of friction, a questionnaire survey, interviews, and bicycle measurements. The method of using a power broom for snow clearance and salt for deicing provided a higher service level than traditional winter maintenance methods, but it was two to three times more expensive. The method has greater potential in regions, such as southern Sweden, with low snow accumulations but with major ice-formation problems than in regions with a colder climate. Cyclists noticed the improved maintenance service level provided with the method used in the field study, but although cyclists stated that road condition is important to their decision to cycle, it could not be concluded that the enhanced service level generated a higher winter cycling frequency.

Critical success factors of an effective repairs and maintenance service for social housing in the UK

Facilities ◽  
2014 ◽  
Vol 32 (5/6) ◽  
pp. 226-240 ◽  
Author(s):  
Matthew Tucker ◽  
Martin Turley ◽  
Sam Holgate
Keyword(s):  
Social Housing ◽  
Quantitative Research ◽  
Critical Success Factors ◽  
Success Factors ◽  
Content Type ◽  
Quantitative Research Methods ◽  
Service Levels ◽  
Critical Success ◽  
Maintenance Service ◽  
The Uk

Purpose – The purpose of this paper is to investigate the critical success factors of an effective repairs service by initially identifying what the important considerations are. Design/methodology/approach – Using quantitative research methods the study then examines how important each of the factors is considered from the perspective of those responsible for such services in the Northwest of England, the level of implementation throughout the region is also examined. Findings – Respondents felt that all 11 factors are perceived as “very” important but only nine are “always” implemented within their place of work. Sustainability and innovation are identified as the two factors that are least critical. It can also be said that although important and well implemented, the in-house skills factor does not appear to be considered as critical in comparison to the other factors. Originality/value – The UK housing sector is under an enormous amount of pressure to meet the needs of a growing population in extremely uncertain financial conditions. Social housing is a potential solution but providers are currently contending with reduced budgets and cuts to staffing levels together with an expectation that service levels will be maintained and value for money maximised. Repairs and maintenance of their stock is at the forefront of their challenge to meet these expectations and it is therefore vital that the service they provide is effective.

Vertical living satisfaction of homeowners in a medium-cost residential building in Klang Valley, Malaysia

2020 ◽  
Vol 18 (3) ◽  
pp. 283-296
Author(s):  
Zairul Nisham Musa ◽  
Wan Nor Azriyati Wan Abd Aziz ◽  
Zafirah Al Sadat Zyed ◽  
Noor Rosly Hanif ◽  
Ainoriza Mohd Aini ◽  
...  
Keyword(s):  
Urban Areas ◽  
Management System ◽  
Residential Building ◽  
Survey Method ◽  
Property Management ◽  
Content Type ◽  
Maintenance Service ◽  
System Maintenance ◽  
Klang Valley ◽  
Medium Cost

Purpose In Malaysia, a vertical residential building (VRB) is still facing challenges associated with property management. The lack of experience in property management resulted in the management, acting unprofessionally that cause a lot of problems to the homeowners and their properties. The findings demonstrated that maintenance of the facilities and common areas in a VRB is essential to ensure its optimal performance over its life cycle. This has to be carried out efficiently and professionally by the qualified property manager. Unfortunately, not every property manager can perform all the tasks efficiently and professionally. Thus, this leads to an increasing number of complaints by unsatisfied homeowners’ particularly on the maintenance and management of the buildings and facilities. To satisfy the homeowners, the issue of transparency is one of the area concerns that need to be emphasised in the property management system practiced in Malaysia. This case study area of Klang Valley poses as one of the urban areas that has the highest number of vertical buildings, especially the medium cost of VRB. The purpose of this study is to explore the satisfaction level of homeowners towards the management system, maintenance services and facilities provided by the management of the medium cost VRB in the Klang Valley. Design/methodology/approach The study adopted a quantitative approach. The survey method was used as an appropriate method for inquiry of the data. Face to face survey was conducted with respondents at a medium-cost residential building in Klang Valley, Malaysia. Findings The findings demonstrated that homeowners living in medium-cost VRB in Klang Valley are satisfied and faced issues with the management system, maintenance service and services provided by the management of the medium-cost VRB. The only issue confronted by the homeowners with the medium-cost VRB is the commitment of the management towards their involvement in organising the activities, problem-solving and taking action on residents’ reports or complaints. Practical implications The findings suggest that appointing qualified property managers who understand property management has increased the performance of the management team. Most importantly, qualified property managers are equipped with knowledge in managing people, especially to create awareness on a sense of responsibility and belonging. Originality/value This study has bridged the research gap on property management of the medium-cost of VRB in Malaysia. This will add value to the management of the medium cost of VRB.

scholarly journals Increasing life of pit dump truck motor-wheel gearboxes by introducing the monitoring of the actual technical condition

2021 ◽  
Vol 6 (4) ◽  
pp. 267-276
Author(s):  
A. A. Khoreshok ◽  
A. V. Kudrevatykh ◽  
A. S. Ashcheulov ◽  
A. V. Vinidiktov ◽  
L. I. Kantovich
Keyword(s):  
Technical Condition ◽  
Dump Truck ◽  
Mining Equipment ◽  
Quality Performance ◽  
Equipment Operation ◽  
Maintenance Service ◽  
Dump Trucks ◽  
Combination Of Methods ◽  
The Cost ◽  
Physical And Chemical

At present, Kuzbass coal strip mines pay great attention to improving quality performance of mining equipment operation, including reliability and durability of components and units. One of the ways of the performance improvement is decreasing number of unforeseen failures. To achieve this purpose a mine dump truck part diagnostics should be introduced into a maintenance service procedure. At the same time the process of diagnostics should not increase the machinery downtime, but effectively reveal a condition of motor-wheel gearboxes in the course of dump truck operation. The aim of the research is to increase the reliability and service life of motor-wheel gearboxes of large BelAZ dump trucks. Failure of a motor-wheel gearbox is a rare phenomenon, but the cost of a new gearbox can vary from 3.5 to 10 million rubles. That is why it is important to implement such methods of diagnostics, which allow revealing the condition of gearboxes in the shortest possible time and without disassembling corresponding units. Determination of the actual technical condition of motor-wheel gearboxes is possible by different methods: vibroacoustic; acoustic; thermal; physical and chemical analysis of spent operating materials. The studies showed that none of these methods can be used as a universal one. When justifying and selecting the most suitable method, different factors should be considered, including technological, or a combination of methods should be applied, which will reduce risks, but at the same time increase costs. It is necessary to develop a better diagnostic method based on the use of several methods simultaneously.

scholarly journals Model of stochastic process of restoration of working capacity of agricultural machine in inertial systems with delay

2020 ◽  
Vol 11 (3) ◽  
pp. 143-150
Author(s):  
I. L. Rogovskii ◽  
Keyword(s):  
Research Problem ◽  
Theoretical Research ◽  
Working Capacity ◽  
Maintenance System ◽  
Healthy State ◽  
Maintenance Service ◽  
System Maintenance ◽  
Basic Functions ◽  
Two Phases ◽  
Complex Indicators

In the article the analysis of existing agricultural machines in a healthy state, followed by work on the maintenance system subject to the conditions of reforming of the agrarian sector. Under maintenance refers to the complex of works on maintenance of working capacity or serviceability of the products during use by adjusting, knowledgeable, filling and retaining work. For the assessment of the alternatives it is advisable to conduct morphological analysis of the entire set of possible solutions to the research problem presented in a morphological matrix, which presents the basic functions of the machine and options the subject of the forms of their implementation. Theoretical research has provided the answer to two fundamental questions – how to change maintenance system depending on the level of development of agricultural production, and what parameters must have the system maintenance service to perform the appropriate intervention with the minimum technologically necessary costs of resources and investment. Assessment of the level of maintenance of agricultural machinery is provided to carry on the totality of organizational and technical factors, formalized through parts and complex indicators, in two phases. The first evaluation of using of the indicators for each factor separately. Second – assessment of a complex indicator (for all factors).

scholarly journals Cost and Efficiency Analysis of PV Transformer-Less Inverter Topology to Grid Connection

2017 ◽  
Vol 2 (3) ◽  
pp. 17
Author(s):  
Shahreen Noor ◽  
Md. Noman Habib Khan ◽  
K.M. Abdul Al Woadud
Keyword(s):  
Renewable Energy ◽  
Power Efficiency ◽  
High Efficiency ◽  
Efficiency Analysis ◽  
Maintenance Cost ◽  
Grid Connection ◽  
Environmental Friendly ◽  
System Maintenance ◽  
The Cost ◽  
Inverter Topology

Photovoltaic (PV) inverters bear a part and parcel role due to cost and power efficiency where it can be used either in Transformer based system or Transformer-less system. Both system even though the renewable energy which is fully Environmental friendly, however some limitations such as bulky system, maintenance cost increasing indicate for avoiding the Transformer based inverter.  In contrast, Transformer -less inverter topology is recovering the TRX based issue and to reduce the overall system cost size with high efficiency. In this paper, Transformer -based inverters have been discussed as well as Transformer –less (TRX) inverter topologies and main focusing part is the cost analysis of TRX inverter topology to grid connection and the different marking process of PV-TRX Inverter Topology to Grid Connection has been shown as well as comparison will be shown with Bangladesh.

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