scholarly journals The Impact of the Physical Elements of Persian Garden on the Persian Painting: A Selection of Tabriz’s Second School Paintings as the Case Study

2015 ◽  
Vol 10 (Special-Issue1) ◽  
pp. 979-989
Author(s):  
Alireza Nazarnia ◽  
Zohreh Torabi
Keyword(s):  
Physical Elements ◽  
The Impact ◽  
Selection Of

On the Applicability of Analytical Supply Chain Disruption Models for Selecting the Optimum Contingency Strategies for Electronic Supply Chain Disruption Management: A Comparison With Simulation

2014 ◽  
Author(s):  
Hannah Allison ◽  
Peter Sandborn ◽  
Bo Eriksson
Keyword(s):  
Supply Chain ◽  
Mitigation Strategy ◽  
Mitigation Strategies ◽  
Analytical Models ◽  
Supply Chain Disruption ◽  
Simulation Based ◽  
Disruption Mitigation ◽  
The Impact ◽  
Selection Of

Due to the nature of the manufacturing and support activities associated with long life cycle products, the parts that products required need to be dependably and consistently available. However, the parts that comprise long lifetime products are susceptible to a variety of supply chain disruptions. In order to minimize the impact of these unavoidable disruptions to production, manufacturers can implement proactive mitigation strategies. Two mitigation strategies in particular have been proven to decrease the penalty costs associated with disruptions: second sourcing and buffering. Second sourcing involves selecting two distinct suppliers from which to purchase parts over the life of the part’s use within a product or organization. Second sourcing reduces the probability of part unavailability (and its associated penalties), but at the expense of qualification and support costs for multiple suppliers. An alternative disruption mitigation strategy is buffering (also referred to as hoarding). Buffering involves stocking enough parts in inventory to satisfy the forecasted part demand (for both manufacturing and maintenance requirements) for a fixed future time period so as to offset the impact of disruptions. Careful selection of the mitigation strategy (second sourcing, buffering, or a combination of the two) is key, as it can dramatically impact a part’s total cost of ownership. This paper studies the effectiveness of traditional analytical models compared to a simulation-based approach for the selection of an optimal disruption mitigation strategy. A verification case study was performed to check the accuracy and applicability of the simulation-based model. The case study results show that the simulation model is capable of replicating results from operations research models, and overcomes significant scenario restrictions that limit the usefulness of analytical models as decision-making tools. Four assumptions, in particular, severely limit the realism of most analytical models but do not constrain the simulation-based model. These limiting assumptions are: 1) no fixed costs associated with part orders, 2) infinite-horizon, 3) perfectly reliable backup supplier, and 4) disruptions lasting full ordering periods (as opposed to fractional periods).

scholarly journals Guests’ assessment of hotel facilities and services: Zadar case study

2020 ◽  
Vol 10 (3) ◽  
pp. 241-250
Author(s):  
Krzysztof Parzych ◽  
Jadranka Brkić-Vejmelka
Keyword(s):  
City Centre ◽  
Location Factors ◽  
Tourist Destination ◽  
Railway Station ◽  
Comfort Evaluation ◽  
Location Determinants ◽  
The Impact ◽  
The City ◽  
Selection Of

Abstract The availability of hotel facilities and services and their quality are one of the most important factor in selection of a tourist destination. The aim of the article was to analyse the impact of hotel location factors, prices of hotel services and detailed assessments of hotel services provided by the hotel on the overall rating of the hotel. As a case study, Zadar – a city located in the northern part of the Dalmatian coast of Croatia – was used to analyse the problem. The location determinants of hotels and their equipment were assessed in relation to the price of accommodation and tourists’ evaluation of the basic components of hotel services. The analysis used data obtained from the Booking.com website for accommodation prices, including selected days of the high and low season, data on the number of opinions about the object and the rating of the object by guests in terms of the overall opinion about the object, its location conditions, the standard of services rendered, cleanliness, comfort, evaluation of staff work, access to Wi-Fi network and assessment of services rendered in relation to the price of the service. The obtained results indicate hotel location, especially its distance from the city centre, railway station and airport and evaluation of chosen elements of customers’ hotel evaluation are most significant determinants of choosing accommodation for tourists.

scholarly journals ECOLOGICALLY BASED APPROACH TO COASTAL DEFENCE DESIGN AND PLANNING

2011 ◽  
Vol 1 (32) ◽  
pp. 50 ◽  
Author(s):  
Barbara Zanuttigh ◽  
Inigo Losada ◽  
Richard Thompson
Keyword(s):  
Standard Procedure ◽  
Combined Method ◽  
Ecological Data ◽  
Positive Effects ◽  
Environmental Friendly ◽  
As Species ◽  
Hydrodynamic Effects ◽  
The Impact ◽  
Selection Of

Sustainability of coastal areas requires the development of a standard procedure for the selection of equitable defence solutions and the design optimization of existing defences in order to minimize the impact on the environment and maximize positive effects such as species biodiversity and structure colonization. The aim of this paper is to propose a combined method, based on numerical simulations and on collection of ecological data in the field, to provide indications for an environmental friendly construction of breakwaters. This method is applied and tested against the case study of Elmer, UK, where information on existing species and their abundance related to hydrodynamic effects induced by the breakwaters

The Impact of Australia’s Carbon Price on the Optimisation and Selection of Gas Turbine CHP System

2013 ◽  
Author(s):  
Chanel A. Gibson ◽  
Mehdi Aghaei Meybodi ◽  
Masud Behnia
Keyword(s):  
Gas Turbine ◽  
Carbon Price ◽  
Combined Heat And Power ◽  
Present Worth ◽  
Dual Connection ◽  
Chp System ◽  
The Impact ◽  
Optimum Working ◽  
Selection Of

This paper aims to indentify the impact of Australia’s carbon pricing mechanism on the optimization of a gas turbine combined heat and power (CHP) system using a thermo-economic approach. Three economic scenarios were considered: no carbon price (case one); carbon price and not liable (case two); and a carbon price and liable (case three). With the intention of demonstrating the methodology used and to identify the impact of the carbon price quantitatively, a case study was utilized. Pricing data sourced from an ongoing investigation at this institution was employed to facilitate the three economic scenarios in addition to the yearly price fluctuations. The system was permitted to operate at off-design conditions in order to determine the optimum working conditions for each month. The analysis drew on the economic indicators of net present worth and payback period. Two connection modes to the grid were considered: a single connection that allowed only for the purchasing of supplementary electricity from the grid and a dual connection which allowed both purchasing and selling of electricity.

scholarly journals Sustainable Circular Micro Index for Evaluating Virtual Substitution Using Machine Learning with the Path Planning Problem as a Case Study

2021 ◽  
Vol 13 (23) ◽  
pp. 13436
Author(s):  
Javier Maldonado-Romo ◽  
Mario Aldape-Pérez
Keyword(s):  
Machine Learning ◽  
Path Planning ◽  
Business Models ◽  
Attractive Alternative ◽  
Planning Problem ◽  
Five Dimensions ◽  
Circular Model ◽  
Physical Elements ◽  
The Impact

Due to the problems resulting from the COVID-19 pandemic, for example, semiconductor supply shortages impacting the technology industry, micro-, small-, and medium-sized enterprises have been affected because the profitability of their business models depends on market stability. Therefore, it is essential to propose alternatives to mitigate the various consequences, such as the high costs. One attractive alternative is to replace the physical elements using resource-limited devices powered by machine learning. Novel features can improve the embedded devices’ (such as old smartphones) ability to perceive an environment and be incorporated in a circular model. However, it is essential to measure the impact of substituting the physical elements employing an approach of a sustainable circular economy. For this reason, this paper proposes a sustainable circular index to measure the impact of the substitution of a physical element by virtualization. The index is composed of five dimensions: economic, social, environmental, circular, and performance. In order to describe this index, a case study was employed to measure the path-planning generator for micro aerial vehicles developed using virtual simulation using machine-learning methods. The proposed index allows considering virtualization to extend the life cycle of devices with limited resources based on suggested criteria. Thus, a smartphone and the Jetson nano board were analyzed as replacements of specialized sensors in controlled environments.

scholarly journals Integrating of Lean Six Sigma Methodology and Ergonomics Principles for Improvement in an Assembly Industrial Workstation

2019 ◽  
Vol 25 (9) ◽  
pp. 12-29
Author(s):  
Iman Qassin Alsaffar ◽  
Hussein Salim Ketan
Keyword(s):  
Six Sigma ◽  
Measurement Data ◽  
Value Added ◽  
Lean Six Sigma ◽  
Work Condition ◽  
Research Plan ◽  
Six Sigma Methodology ◽  
The Impact ◽  
Selection Of

Lean Six Sigma methodologies and Ergonomics principles are the main pillars of this work given their importance in the implementation of continuous improvement in assembly workstations design. When looking at the introduction of the Ergonomics that has been affected by the integration of the Lean and Six Sigma for improvements, it is necessary to understand why these methodologies belong to each other and how they can be handled in the industrial field. The aim of the work seeks towards the impact of analyzing the integration of the basics tools of Lean and Six Sigma that enhanced Ergonomics highlighted the importance of using the priority matrix in the selection of the priority criteria. Two models of a system based on building a knowledge base were used to collect and record measurement data from information and facts. The first is the "Process-flow vs. Time Efficiency" relates to "value added and non-value added" activities. The second is the "Work-Condition vs. Ergonomics Effects", which focuses on postural movements of the worker. These integrative models are represented by the application of a system called "LSS + ERGO System". The appropriate state that can deal with this situation is the use of Smart Priority Matrices that will prove to be a useful tool. This method (tool) is possible to understand what actions are potential and important to be implemented, according to the track that the research will be taken. The results show that the improvement suggestions existing in the Improve stage focused on the opportunities that weigh larger than the average (10%)  obtain the acceptable procedures for optimization proposals can be identified as the research plan is presented for implementation. The case study has been implemented in the General Company for Hydraulic Industries/ Damper Assembly Factory.  

scholarly journals The impact of equipment productivity and pushback width on the mine planning process

2020 ◽  
Vol 120 (10) ◽  
Author(s):  
A.S. Araya ◽  
M. Nehring ◽  
E.T. Vega ◽  
N.S. Miranda
Keyword(s):  
Planning Process ◽  
Mine Planning ◽  
Open Pit ◽  
Open Pit Mining ◽  
Capital Costs ◽  
Planning Processes ◽  
Equipment Utilization ◽  
The Impact ◽  
Selection Of

SYNOPSIS Conventional mine planning processes result in the selection of pushback widths that maximize equipment productivity. This paper challenges the current notion that pushback width should be set at the distance that assures maximum equipment productivity. A hypothetical case study is presented, which shows that the value of a project may increase beyond that determined by traditional planning practices. It was found that it may be better to deploy more aggressive mining strategies, which are likely to result in greater operational complexity and thus reduced equipment productivity. A higher equipment productivity, which often corresponds to wider (and therefore a lower number of) pushbacks, will also often result in later ore extraction and require higher capital costs. Keywords: open pit mining, pushback width, mine planning, schemes of exploitation, mining rate, equipment utilization.

scholarly journals A Case Study Analysis on the Impact of a Hybrid Application of the Best Value Approach

2019 ◽  
Vol 11 (1) ◽  
pp. 52-61
Author(s):  
Lars Claassen ◽  
Arjan Roodhorst ◽  
Isaac Kashiwagi
Keyword(s):  
Decision Making ◽  
Performance Metrics ◽  
Selection Process ◽  
Case Study Research ◽  
Case Study Analysis ◽  
Best Value ◽  
Research Findings ◽  
The Impact ◽  
Selection Of

The Best Value Approach (BVA) has been used as a method to procure and manage services. As the BVA is further proliferated, there are applications of the BVA which deviate from the standard approach which are labeled as hybrid processes. This research focuses on better understanding BVA hybrid projects and the implications that may arise with such deviations. Using case study research, the BVA was used to procure services for the construction of ships. The research findings show the impact of hybrid applications of the BVA including (1) the selection of suppliers based on decision making instead of expertise (2) attempts to share and transfer risk, (3) incomplete clarification phase planning by expert suppliers, and (4) incomplete use of the Weekly Risk Report and Director’s report to track project deviation. The resulting hybrid application was found to have increased costs, increased decision making, and created a non-transparent environment. Suggestions have been made to improve upon these areas by applying the BVA structure including a selection process to identify expertise and a project management process which utilizes the supplier’s expertise to create a structure of transparency through performance metrics.

scholarly journals Adoption and Use of Discovery Tools by Selected Academic Libraries in Zimbabwe

2016 ◽  
pp. 168-180 ◽  
Author(s):  
Sindiso Bhebhe ◽  
Similo Ngwenya
Keyword(s):  
Technology Acceptance ◽  
Academic Libraries ◽  
Multiple Case Study ◽  
Software Packages ◽  
Challenges And Opportunities ◽  
Multiple Case ◽  
Acceptance Model ◽  
The Impact ◽  
Selection Of

The chapter discusses the adoption and use of e-discovery tools by three selected academic libraries in Zimbabwe. Through the use of a multiple case study a study was carried out to identify factors that led to the adoption and use of discovery tools by the three selected academic libraries. The study sought to find out the reasoning behind the selection of e-discovery tools, to assess the challenges and opportunities met in the use of e-discovery tools and to evaluate the impact brought about by the use of discovery tools. The study drew its theoretical framework from the Technology Acceptance Model (TAM) (Davis, 1989). The TAM best explains the adoption of numerous technologies ranging from software packages to various online services. Some of the findings revealed that all the three libraries chose to use the EBSCO discovery tools even though it is expensive for them.

scholarly journals A System Dynamics Simulation Study on the Efficiency of Commercial Banks from the Perspective of Green Credit

2020 ◽  
Vol 8 ◽  
Keyword(s):  
System Dynamics ◽  
Commercial Banks ◽  
Dynamics Simulation ◽  
Flow Diagram ◽  
Financial Policies ◽  
Bank Efficiency ◽  
Functional Relations ◽  
The Impact ◽  
Selection Of

With the deepened commitment to the green credit policy and increasingly intense competition among commercial banks, the impact of green credit on the efficiency of commercial banks has attracted great attention from the banking industry and governments. To study the efficiency of commercial banks from the perspective of green credit, this paper, with a case study on Bank of Shanghai, builds a system dynamics model to present the causal loop diagram and system flow diagram and seek the functional relations between variables. Then it goes on to simulate the evolution of the policy situation with system dynamics and attempts to find out the change path and evolution direction of green credit and variables regarding bank efficiency when a certain policy is adjusted, with a view to providing theoretical basis and data support for formulation of financial policies and selection of bank strategies.

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