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Article
Publication date: 14 May 2020

Phuong Minh Khuong, Hasan Ü. Yilmaz, Russell McKenna and Dogan Keles

With the growing deployment of variable renewable energy sources, such as wind and PV and the increasing interconnection of the power grid, multi-regional energy system models…

Abstract

Purpose

With the growing deployment of variable renewable energy sources, such as wind and PV and the increasing interconnection of the power grid, multi-regional energy system models (ESMs) are increasingly challenged by the growth of model complexity. Therefore, the need for developing ESMs, which are realistic but also solvable with acceptable computational resources without losing output accuracy, arises. The purpose of this study is to propose a statistical approach to investigate asynchronous extreme events for different regions and then assess their ability to keep the output accuracy at the level of the full-resolution case.

Design/methodology/approach

To extract the extreme events from the residual demands, the paper focuses on analyzing the tail of the residual demand distributions by using statistical approaches. The extreme events then are implemented in an ESM to assess the effect of them in protecting the accuracy of the output compared with the full-resolution output.

Findings

The results show that extreme-high and fluctuation events are the most important events to be included in data input to maintain the flexibility output of the model when reducing the resolution. By including these events into the reduced data input, the output's accuracy reaches the level of 99.1% compared to full resolution case, while reducing the execution time by 20 times.

Originality/value

Moreover, including extreme-fluctuation along with extreme-high in the reduced data input helps the ESM to avoid misleading investment in conventional and low-efficient generators.

Details

International Journal of Energy Sector Management, vol. 15 no. 2
Type: Research Article
ISSN: 1750-6220

Keywords

Book part
Publication date: 10 February 2020

Engin Dinç and Esra Atabay

The profession of judicial advisory is a profession with a larger scope, which creates solutions for legal problems by harmoniously blending principles, theories, and standards…

Abstract

The profession of judicial advisory is a profession with a larger scope, which creates solutions for legal problems by harmoniously blending principles, theories, and standards that relate to many areas of expertise such as accounting, auditing, and law. The legists need expert information on the matters of accounting, finance, and taxation regarding the files that they handle. In such cases, experts who perform the profession of judicial advisory provide their consultancy services to the legists before and during the cases.

The purpose of this study is to create awareness regarding the profession of judicial advisory and put forward the prospects of this profession in Turkey. The study includes four provinces located in the Eastern Black Sea Region (Trabzon, Rize, Ordu, and Giresun). There are a total of 1,339 lawyers who are registered to the bar associations of the indicated provinces; out of them, 600 lawyers have been communicated, but a questionnaire was conducted on 354 lawyers by employing face-to-face interviews. The data obtained from the questionnaires have been subjected to difference in means (unpaired t-test) and descriptive statistical analyses by using the statistical packet software of SPSS 10.0.

In the consequence of the conducted analyses, it has been determined that the lawyers thought that the members of the profession of accounting working as experts were inadequate. In the event of establishing judicial advisory institution besides the institution of expertise, it is believed that a more beneficial system would be created. It is seen that this thought has not changed among the lawyers in terms of different characteristics except level of education. Additionally, it has been determined that the level of awareness of the lawyers regarding the profession of judicial advisory was insufficient.

Details

Contemporary Issues in Audit Management and Forensic Accounting
Type: Book
ISBN: 978-1-83867-636-0

Keywords

Book part
Publication date: 10 February 2020

Seval Kardeş Selimoğlu and Mehtap Altunel

Along with accounting scandals in the past, academics, researchers, and legislators have focused on fraud. The purpose of this study is to examine postgraduate and doctoral…

Abstract

Along with accounting scandals in the past, academics, researchers, and legislators have focused on fraud. The purpose of this study is to examine postgraduate and doctoral studies, articles, and books about forensic accounting and fraud audit published between the years 2008 and 2018 in Turkey. For this purpose, a total of 96 studies have been examined and 35 of these are master’s theses, 10 of them are PhD theses, 45 of them are articles, and six of them are books. These studies were presented in tables as classified. The studies examined in our research are summarized as year they were published, the author, and the scope of the topic and in terms of results. The conclusions of this study can be summarized as follows: (a) the majority of thesis published about forensic accounting and fraud audit are in 2011 and following years. In addition, most of the theses are focused on forensic accounting review rather than fraud audit. (b) Results in the articles reviewed are in the same direction with theses. (c) There are very few books about fraud audit and forensic accounting. One of them is related to fraud audit, while the rest of them are related to forensic accounting and forensic accounting profession. We suggest extending the scope of the study and making to other countries.

Details

Contemporary Issues in Audit Management and Forensic Accounting
Type: Book
ISBN: 978-1-83867-636-0

Keywords

Book part
Publication date: 1 March 2022

Necla Kuduz

Purpose: Due to technological developments, industrialisation, irregular urbanisation, rapid population growth, and unconscious consumption, environmental problems have been on

Abstract

Purpose: Due to technological developments, industrialisation, irregular urbanisation, rapid population growth, and unconscious consumption, environmental problems have been on the agenda of activists, not for profit organisations, businesses, and governments for the last 20 years. Global warming, climate change, and ozone layer depletion are among the environmental problems which are the most threatening to life on earth. What is underlying these three problems is greenhouse gases emitted into atmosphere. Carbon footprint is a measure of carbon emission. The amount of carbon footprint is closely related to consumption styles as well as production. Unconscious life styles and consumption habits of consumers increase the amount of carbon footprint produced. Together with the rise of environmental problems, the concept of sustainable consumption has become very important. In the most simple of terms, sustainable consumption means consumption without consuming natural resources and this will play an important role in reducing carbon footprint.

Aim: In this chapter, keeping in mind the context of sustainable consumption, the concept of carbon footprint is explained as well as the methods for reducing carbon footprint arising from consumption, in a bid to bring strong awareness of these issues to consumers.

Methodology: To do this a literature review was carried out and methods of reducing carbon footprint were examined and discussed.

Findings: Consumers play an important role in reducing the amount of carbon footprint arising from individual consumption.

Originality of the Study: Most studies are carried out on the carbon footprint resulting from businesses and on carbon footprint calculation and determination of carbon footprint of products. Therefore, this study is specific in that it focusses on the carbon footprint of consumers.

Implications: Studies show that one of the important factors increasing carbon footprint is the unconscious acts of consumers relating to the environment. As long as this unconscious consumption model continues, the amount of carbon footprint will also increase. Hence, consumers need to know which activities reduce the amount of carbon footprint.

Details

Managing Risk and Decision Making in Times of Economic Distress, Part A
Type: Book
ISBN: 978-1-80117-427-5

Keywords

Article
Publication date: 4 July 2018

Yulu Shi, Wei Bai, Junming Guo, Libin Gao, Yijian Chen, You Wu and Linqiao Liang

This paper aims to evaluate the efficiency and mechanism of three kinds of expired nitroimidazole antibiotics as corrosion inhibitor for mild steel in 1M HCl.

Abstract

Purpose

This paper aims to evaluate the efficiency and mechanism of three kinds of expired nitroimidazole antibiotics as corrosion inhibitor for mild steel in 1M HCl.

Design/methodology/approach

Evaluation was carried out by weight loss and electrochemical techniques. The surface morphology and the composition of the elements of adsorption layer are studied by scanning electron microscopy and energy dispersive spectrometer.

Findings

The experimental results reveal that the maximum value of inhibition efficiency appear at an extreme point of concentration with the increase of concentration of the inhibitors. Ornidazole has better corrosion inhibition than metronidazole but not as tinidazole. The inhibitors all act as cathodic type corrosion inhibitor. The adsorption of ornidazole, metronidazole and tinidazole on mild steel obeys Langmuir adsorption isotherm and belongs to chemisorption of electron donating. Combined with the molecular structure of the corrosion inhibitor and the experimental structure, the authors propose a detailed mechanism analysis.

Originality/value

The expired nitroimidazole antibiotics as corrosion inhibitor for mild steel in hydrochloric acid solution is first studied. It provides a way to deal with expired drugs, thereby reducing environmental pollution. The study explored the inhibition mechanism affecting by comparison different structure of three kinds of expired nitroimidazole antibiotics molecular, providing theoretical support for the preparation of the new inhibitor.

Details

Anti-Corrosion Methods and Materials, vol. 65 no. 4
Type: Research Article
ISSN: 0003-5599

Keywords

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