The Forecasting Method Of Central Air Conditioning Load: A Brief Review

2021 ◽  
Vol 14 ◽  
Author(s):  
Mengxiang Zhuang ◽  
Qixin Zhu
Keyword(s):  
Air Conditioning ◽  
Load Forecasting ◽  
Current Status ◽  
Impact Factors ◽  
Future Research ◽  
Load Prediction ◽  
Advantages And Disadvantages ◽  
Operating Load ◽  
Forecasting Method ◽  
The Impact

Objective: In order to better understand the research results of AC load prediction and carry out new research, the Air Conditioning (AC) load forecasting method plays an important role in the energy consumption of AC. Method: This paper summarizes the methods of building AC load prediction, mainly from the impact factors of AC operating load and the methods of AC system operating load forecasting to introduce the current status of load prediction. This paper describes some studies on load influencing factors, compares the advantages and disadvantages of modeling methods for AC operation load prediction and points out the research direction of AC load forecasting. Results: The current research methods are summarized and analyzed. Traditional forecasting methods are no longer applicable to air conditioning systems. From the current research, combinatorial prediction has become a hot research object. This method combines two or more methods to reduce the prediction error and shorten the prediction time. Conclusion: This paper points out some shortcomings of the present research and the future research suggestions are given in the three aspects of sharing AC operation data, selecting the key factors of AC, and exploring the new methods.

Tourism research for the GCC region: Current status and future research directions

2021 ◽  
pp. 135481662199996
Author(s):  
Ali Salman Saleh ◽  
Charbel Bassil ◽  
Arsalan Safari
Keyword(s):  
United Arab Emirates ◽  
Current Status ◽  
Future Research ◽  
Research Directions ◽  
Regional Tourism ◽  
Research Theme ◽  
Tourism Sector ◽  
Future Research Directions ◽  
Meta Analyses ◽  
The Impact

Tourism in the Gulf Cooperation Council (GCC) countries has recently been considered by policymakers as a new avenue for economic diversification. Despite the considerable literature concerning the impact of tourism worldwide, only a limited number of studies have looked at the tourism sector in the GCC region or analyzed its economic, sociocultural, and environmental impacts. This article therefore conducts a systematic review of the state of the literature related to tourism in the GCC region. It provides effective insights about the current status, gaps, and challenges and proposes future research directions in this area for academics, practitioners, and policymakers with an interest in regional tourism development. The preferred reporting items for systematic reviews and meta-analyses approach was used to identify and select the papers. Some 23 papers were identified and analyzed. The majority of these studies focused on the United Arab Emirates, specifically the Dubai emirate. We found the most dominant research theme to be tourism planning.

scholarly journals Dryland Food Security in Ethiopia: Current Status, Opportunities, and a Roadmap for the Future

2021 ◽  
Vol 13 (11) ◽  
pp. 6503
Author(s):  
Yu Peng ◽  
Hubert Hirwa ◽  
Qiuying Zhang ◽  
Guoqin Wang ◽  
Fadong Li
Keyword(s):  
Food Security ◽  
Current Status ◽  
Future Research ◽  
Systematic Research ◽  
Security Assessment ◽  
Security Issue ◽  
Sustainable Development Goal ◽  
Zero Hunger ◽  
The Impact

Given the impact of COVID-19 and the desert locust plague, the Ethiopian food security issue has once again received widespread attention. Its food crisis requires comprehensive and systematic research to achieve the United Nations Sustainable Development Goal of zero hunger. This review discusses the current situation and the causes of food security in Ethiopia. We focus on the challenges in the food security assessment field. The article lists seven typical causes of food insecurity and three roots of food security in Ethiopia. Long-term food security assessment and a comprehensive understanding and manageability for food security causes are considered as the main existing research challenges. Climate-resilient management, water management, and long-term ecosystem network monitoring and data mining are suggested as potential roadmap for future research.

scholarly journals Prednosti in slabosti timskega dela na daljavo

2021 ◽  
Vol 10 (2) ◽  
pp. 180-194
Author(s):  
Tjaša Gračner
Keyword(s):  
Comparative Method ◽  
Research Question ◽  
Working Hours ◽  
Work And Family ◽  
Future Research ◽  
Employee Productivity ◽  
Distance Method ◽  
Advantages And Disadvantages ◽  
Deductive Method ◽  
The Impact

Research Question (RQ): What are the advantages and disadvantages of teamwork at distance? Purpose: To explore the advantages and disadvantages of teamwork at a distance and to find the reasons for successful or unsuccessful work at a distance. Method: With the help of an integrative review of the literature or already done research in this field and with the collection of data, we investigated the advantages and disadvantages of teamwork at a distance. To obtain data, we used a qualitative method, a compilation method with which we summarized the results of other authors on this topic, a comparative method for comparing the advantages and disadvantages of teamwork at a distance and a deductive method with which we infer individual cases in general. Results: The results of all surveys do not differ significantly, as the advantages and disadvantages of teamwork at a distance of employees depend on similar parameters: working hours, age, position in the company, infrastructure, possibilities of combining work and family. Organization: The impact on the organization is strong as it allows the organization to achieve better employee productivity, they can have a flexible work schedule, the organization does not have high costs with physical offices and with the cost of transporting employees to work. It is also important that organizations are aware of the importance of the benefits of teleworking and encourage productivity, innovation, and that the leader rewards them accordingly. Society: Theoretical part starting points guide society to the use of telework and teamwork, as more people together can do much more, improve, innovate. Teleworking has a positive effect on employees. Originality: The originality of the research is reflected in the breakdown of the advantages and disadvantages of teamwork at a distance. The topic focused on highlighting the benefits of teamwork at a distance, which greatly contributes to the development of the company. Limitations/Future Research: To get a broader view of the advantages and disadvantages of teamwork at a distance, more literature would need to be examined. For further research, we should explore the various costs that threaten companies in terms of introducing telework and ways to help companies and employees work remotely in a team.

scholarly journals The Case of the Mexican Mobile Government: Measurement and Examples

2015 ◽  
pp. 1186-1212 ◽  
Author(s):  
Rodrigo Sandoval-Almazan ◽  
Yaneileth Rojas Romero
Keyword(s):  
Case Studies ◽  
Mobile Apps ◽  
Future Research ◽  
Public Officials ◽  
Government Organizations ◽  
Advantages And Disadvantages ◽  
Mexican Society ◽  
Government Websites ◽  
The Impact ◽  
Different Sources

The mobile government has become a reality in a large majority of countries around the world. However, the use of mobile apps (small software programs for use on mobile devices) to link government Websites and information is a recent trend that is becoming of interest to citizens and public officials. The uses, advantages, and disadvantages have recently become a study field for several scholars around the globe. The mobile government is not new for e-government scholars; however, the explosion of apps and the increase of smart phones have created a new trend in the mobile government field. In order to understand these phenomena in the Mexican society, the authors have gathered data from different sources: government departments, business enterprises, and citizen organizations. Based on this information, they analyze the impact of apps across the country and suggest a classification method that can be used for a better understanding of this new field. In this chapter, the authors discuss five small case studies, which they consider good examples to follow by different government organizations. To accomplish this objective, they divide this chapter into seven main sections. After the introduction, the authors provide a literature review, describe the method of study and classify the apps, discuss the findings with the model application, present the case studies for government apps, discuss ideas for future research on government apps, and then in the final section, they present final remarks and conclusions of the investigation.

scholarly journals Towards Integration of Security and Safety Measures for Critical Infrastructures Based on Bayesian Networks and Graph Theory: A Systematic Literature Review

Signals ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 771-802
Author(s):  
Sandeep Pirbhulal ◽  
Vasileios Gkioulos ◽  
Sokratis Katsikas
Keyword(s):  
Graph Theory ◽  
Literature Review ◽  
Bayesian Networks ◽  
Systematic Literature Review ◽  
Future Research ◽  
Critical Infrastructures ◽  
Maritime Industry ◽  
Eligibility Criteria ◽  
Advantages And Disadvantages ◽  
The Impact

In recent times, security and safety are, at least, conducted in safety-sensitive or critical sectors. Nevertheless, both processes do not commonly analyze the impact of security risks on safety. Several scholars are focused on integrating safety and security risk assessments, using different methodologies and tools in critical infrastructures (CIs). Bayesian networks (BN) and graph theory (GT) have received much attention from academia and industries to incorporate security and safety features for different CI applications. Hence, this study aims to conduct a systematic literature review (SLR) for co-engineering safety and security using BN or GT. In this SLR, the preferred reporting items for systematic reviews and meta-analyses recommendations (PRISMA) are followed. Initially, 2295 records (acquired between 2011 and 2020) were identified for screening purposes. Later on, 240 articles were processed to check eligibility criteria. Overall, this study includes 64 papers, after examining the pre-defined criteria and guidelines. Further, the included studies were compared, regarding the number of required nodes for system development, applied data sources, research outcomes, threat actors, performance verification mechanisms, implementation scenarios, applicability and functionality, application sectors, advantages, and disadvantages for combining safety, and security measures, based on GT and BN. The findings of this SLR suggest that BN and GT are used widely for risk and failure management in several domains. The highly focused sectors include studies of the maritime industry (14%), vehicle transportation (13%), railway (13%), nuclear (6%), chemical industry (6%), gas and pipelines (5%), smart grid (5%), network security (5%), air transportation (3%), public sector (3%), and cyber-physical systems (3%). It is also observed that 80% of the included studies use BN models to incorporate safety and security concerns, whereas 15% and 5% for GT approaches and joint GT and BN methodologies, respectively. Additionally, 31% of identified studies verified that the developed approaches used real-time implementation, whereas simulation or preliminary analysis were presented for the remaining methods. Finally, the main research limitations, concluding remarks and future research directions, are presented

scholarly journals Short-Term Electric Load Prediction and Early Warning in Industrial Parks Based on Neural Network

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Guannan Wang ◽  
Pei Yang ◽  
Jiayi Chen
Keyword(s):  
Early Warning ◽  
Business Models ◽  
Load Forecasting ◽  
Value Added ◽  
Load Prediction ◽  
Industrial Parks ◽  
Forecasting Method ◽  
Warning Model ◽  
Technical Products ◽  
Better Than

This paper proposes a load forecasting method based on LSTM model, fully explores the regularity of historical load data of industrial park enterprises, inputs the data features into LSTM units for feature extraction, and applies the attention-based model for load forecasting. The experiments show that the accuracy of our prediction model and early warning model is better than that of the baseline and can reach the standard of application in practice; this model can also be used for early warning of local sudden large loads and identification of enterprise power demand. Therefore, the validity of the method proposed in this paper is verified using the historical dataset of industrial parks, and relevant technical products and business models are formed to provide value-added services to users by combining existing practical cases for the specific scenario of industrial parks.

Polycyclic Aromatic Hydrocarbons in Chinese Raw Coal

2012 ◽  
Vol 588-589 ◽  
pp. 59-63
Author(s):  
Jian Guo Feng ◽  
Gui Hua Li ◽  
Jin Tang Zhang ◽  
Wei Yan Yu
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Research Direction ◽  
Hazardous Substances ◽  
Impact Factors ◽  
Future Research ◽  
Reducing Atmosphere ◽  
Coal Analysis ◽  
Polycyclic Aromatic ◽  
The Impact

With the rapid economic and social development of China, the attention to environment issue is higher and higher. Current, toxic and hazardous substances polycyclic aromatic hydrocarbons (PAHs) has been detected in the air, water, sediments of the river (or lake) and soil. Part of these PAHs come from (1) volatile of PAHs in solids phase or liquids phase in raw coal ,(2) raw coal incomplete combustion (3) PAHs hydrolyze in a reducing atmosphere. As the basis of PAHs discharging in the process of coal using, it is necessary to summary extraction, purification, analysis of the PAHs in raw coal, conclude species and content of PAHs in raw coal, analysis the impact factors of PAHs distribution, discovered the deficiencies in current research and the future research direction.

Survey on Natural Gas Load Forecasting Technology

2012 ◽  
Vol 485 ◽  
pp. 249-252
Author(s):  
Wei Ya Shi
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Natural Gas ◽  
Statistical Learning ◽  
Learning Theory ◽  
Statistical Learning Theory ◽  
Load Forecasting ◽  
Future Research ◽  
Forecasting Methods ◽  
Forecasting Method

In this paper, we give a short survey on natural gas load forecasting technology. Because the variation of gas load is influenced by weather and people activity, the traditional forecasting results and the precision is low. The forecasting methods based on statistical learning theory and artificial neural network are discussed in detail. We also give some future research on the forecasting method of gas load.

Research on entrepreneurial orientation: current status and future agenda

2016 ◽  
Vol 22 (4) ◽  
pp. 556-583 ◽  
Author(s):  
Cristina Dai Prá Martens ◽  
Fabrício Martins Lacerda ◽  
Ana Claudia Belfort ◽  
Henrique Mello Rodrigues de Freitas
Keyword(s):  
Entrepreneurial Orientation ◽  
Developing Economies ◽  
The Body ◽  
Sub Saharan Africa ◽  
Knowledge Generation ◽  
Current Status ◽  
Future Research ◽  
Content Type ◽  
Emerging Themes ◽  
The Impact

Purpose – Research on entrepreneurial orientation (EO) has attracted researchers’ attention for over 30 years. The purpose of this paper is to comprehensively analyze the body of literature resulting from 30 years of research in EO, and to answer the following questions: what are the major themes that have emerged? What areas are missing? What degree of convergence do we see in the field of EO, and what concepts/topics has the field converged around? Design/methodology/approach – A bibliometric study with a sample of 405 articles published from January 1987 to July 2014 was developed. Techniques of bibliometric, lexical, and content analysis were used. The analysis involved: the evolution of published articles; the main authors, their nationalities, and institutional affiliations; citation and co-citations analysis; the journals that have published the most articles; and the most frequently-searched topics. Opting for bibliometric techniques permit an analysis of a larger number of articles and a greater variety of articles than other methodologies such as meta-analyses and systematic review studies. Accordingly, a more comprehensive look at the field of EO can be taken. Findings – Two distinct but complementary classifications are proposed to characterize the body of the literature resulting from 30 years of research in EO. The first one demonstrates that the field presents a convergence of the themes in four axis which together comprise studies on EO: performance, strategy, entrepreneurial attitude, and management. The second one presents the frequency of occurrence of the themes in the field: high-frequency themes or classical themes, frequently in the literature; moderate-frequency themes or emerging issues have not been sufficiently explored; low-frequency themes or potential opportunities related to understudied issues and contexts less frequently surveyed. A future research agenda is proposed for emerging themes and specific contexts. Practical implications – The identification of key themes in the field of EO contributes to assess the research evolution in order to recognize emerging themes and contexts, and the research gaps. With this, it is possible to lead new studies to cover a lack of research and advance knowledge in the field. The themes most studied also show the contribution for EO to organizational practice, especially in relation to the impact on the performance, the stimulus to the development of innovations, and the effects on organizational growth. Additionally, the identification of the authors most cited, most productive on the theme and the identification of the core journals for publishing of the area is recommended as a general reference for researchers interested in the topic of EO. Social implications – Although EO literature has been widely developed in Anglo regions (especially in the USA and UK) and Germanic Europe (especially Spain), there are others lacking these studies, especially Latin America, sub-Saharan Africa, Eastern Europe, and Middle East, with rare articles published internationally. The results can guide the advancement of research in these different contexts and realities where even issues more widely treated in the literature have been unexplored. The lack of studies in certain contexts can lead to new studies for inserting new insights into EO, such as potential differences between developed regions and in development. For regions where the studies on EO are more developed, the results of this paper contribute to signaling issues and contexts little explored that may be the focus of attention. Originality/value – The generation of literature indicators of EO through bibliometric fills a research gap on the theme, providing a more comprehensive view of the field and of the current status of the research on EO. Identifying the most frequent topics in EO literature, and little-explored themes and contexts makes it possible to propose an agenda for future research and knowledge generation on EO. Thus, it is suggested the development of studies focus on emerging themes like growth, learning, knowledge, resources, and capabilities; also in specific contexts with potential for aggregating new knowledges in the EO field such as family firms, non-profit organizations, social contexts, the public sector, university, spin-off, firms in emerging and developing economies.

Trend Analyses of Major Contributions in The Counseling Psychologist Cited from 1986 to 1996

1999 ◽  
Vol 27 (1) ◽  
pp. 73-95 ◽  
Author(s):  
Lisa Y. Flores ◽  
S. Craig Rooney ◽  
P. Paul Heppner ◽  
LaVonne Douglas Browne ◽  
Mei-Fen Wei
Keyword(s):  
Half Life ◽  
Impact Factors ◽  
Future Research ◽  
Official Publication ◽  
Professional Issues ◽  
Diverse Range ◽  
Men And Women ◽  
The Past ◽  
Number Of Citations ◽  
The Impact

This study commemorates the 30th anniversary of The Counseling Psychologist (TCP), the official publication of Division 17 since 1969. The investigation analyzes trends in the professional citations of the Major Contribution articles from the inception of TCP in 1969 through 1995. Results indicate (a) the impact factors and citation half-life statistics for Major Contribution articles for the years 1986 to 1996, (b) that citations of Major Contributions have increased over the past 11 years, (c) that Major Contribution articles are cited across a diverse range of disciplines, (d) that the number of Major Contribution articles in an issue is negatively related to the average number of citations for an issue, (e) the top 10 most frequently cited Major Contribution articles, (f) the percentages of Major Contributions published by men and women, and (g) emerging topic areas from citations of Major Contributions published from 1991 to 1995. Implications of the results are discussed with regard to professional issues, TCP, and future research.

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