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Thakur Dhakal,Dae-Eun Lim 강원대학교 경영경제연구소 2020 Asia-Pacific Journal of Business Vol.11 No.2
Purpose - The propose of this study is to examine the effect of human development index on mobile telephony diffusion. Design/methodology/approach - This study fits the modidensity of South Asian Association for Regional Cooperation (SAARC) member countries with an econometric Gompertz growth model. The diffusion factors, including the human development index (HDI), gross domestic product (nominal) per capita, fixed-line telephony subscription, and population data of each member country from 2005 to 2018 are considered for the empirical experiment. Furthermore, the mobidensity of randomly sampled countries with very high human development scores (the Republic of Korea, Switzerland and Norway) and high development scores (Brazil and Costa Rica) have been examined with the same process as SAARC members. Findings - We have found a positive but insignificant relationship between the HDI value and mobile telephony diffusion in Afghanistan, Bangladesh, Bhutan, India, and Pakistan; a positive and statistically significant relationship at a 99% confidence level in SriLanka; and a negative and insignificant relationship in the Maldives and Nepal. HDI has both positive and negative effects on mobile telephony diffusion, with the nature of effect depending on the profiles of each country. HDI is a diffusion determinant of mobile telephony only for the high human development country groups. Research implications or Originality - This study provides a reference for policymakers, telecommunication stakeholders, and future researchers to design the telecommunication policies and strategies.
A Study on Modeling of Cantilever Pipe with MR damper to Suppress Fluid Induced Vibration
Thakur Dhakal(타쿠르 다칼),Sung-Chul Hong(홍성철),Woo-Cheul Park(박우철) 한국산학기술학회 2014 한국산학기술학회 학술대회 Vol.- No.-
In this study, the modeling of the cantilever pipe with MR damper to suppress the vibration caused by fluid flow is successfully modeled. The governing equation in this piping system is derived form the Newtonian approach. Similarly, the proposed model is checked with supplying the different velocity of water flowing pipe. As the axially flowing fluid velocity is increased, the transverse vibration on the tip end is also increased.
Thakur Dhakal,Sang Jin Lim,Muyoung Heo,Sang Hee Lee,Yungchul Park,Yeonsu Oh,Tae-Soo Chon 강원대학교 산림과학연구소 2021 강원대학교 산림과학연구소 학술대회 Vol.2021 No.10
African Swine Fever Virus (ASFV) is a severe viral disease spreading rapidly worldwide, including Korea, in both wild boar (Sus scrofa) and domestic pig (Sus domesticus populations. An individual based model (IBM) was developed to simulate movement of individual wild boars concurrently liking with ASFV transmission. Movement of wild boar followed the rules according to the hidden Markov model (HMM) to select optimal habitats with different natural resources (leaf types and water). HMM parameters were obtained based on field data observed in Bukhan Mountain, Seoul, Korea, from June, 2018 to May, 2019. Subsequently ASFV transmission was incorporated into the model when healthy boars contacted infected boars. The model output was presented in the Hoengseong area, Korea. Simulation results indicated that contact rate and carcass removal frequency were important in controlling disease transmission during the course of wild boar movements.
Review of Multi-Generation Innovation Diffusion Models
DHAKAL THAKUR,Kyoung-Soon Min,Dae-Eun Lim 대한산업공학회 2019 Industrial Engineeering & Management Systems Vol.18 No.4
In recent years, innovation diffusion models and their applications are increasingly studied because of the rapid development of technology. Since the publication of Norton and Bass (1987), the models on multi-generation diffusionhave resulted in a body of articles, books, and reports. In this study, the progress of multi-generation innovation diffusion studies based on 44 research papers published from 1971 to 2018 is reviewed. Insights from different researchstreams are summarized and outlines an entry point for new researchers focusing on multi-generation innovation diffusion is provided.
A Macro Analysis of Tourist Arrival in Nepal
Tulsi PAUDEL,DHAKAL THAKUR,Wen Ya LI,김영국 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.1
The number of tourists visiting Nepal has shown rapid growth in recent years, and Nepal is expecting more tourist arrivals in the future. This paper, thus, attempts to analyze the tourist arrivals in Nepal and predict the number of visitors until 2025. This paper has examined the international tourist arrival trend in Nepal using the Gompertz and Logistic growth model. The international tourist arrival data from 1991 to 2018 is used to investigate international tourist arrival trends. The result of the analysis found that the Gompertz model performs a better fit than the Logistic model. The study further forecast the expected tourist arrival below one million (844,319) by 2025. Nevertheless, the government of Nepal has the goal of two million tourists in a year. The present study also discusses system dynamics scenarios for the two million potential visitors within a year. Scenario analysis shows that proper advertisement and positive word-of-mouth will be key factors in achieving a higher number of tourists. The current study could fill the gap of theoretical and empirical forecasting of tourist arrivals in the Nepalese tourism industry. Also, the study findings would be beneficial for government officers, planners and investors, and policy-makers in the Nepalese tourism industry
박우철(Woo-Cheul Park),윤승현(Seung-hyun Yoon),이인재(In-Jae Lee),타쿠르 다하칼(Thakur Dhakal),최경만(Gyung-Man Choi) 한국산학기술학회 2014 한국산학기술학회 학술대회 Vol.- No.-
본 연구에서는 기존의 주철 맨홀뚜껑을 대체할 수 있고, 도로 노면 공사 시 도로 노면 높이와 맨홀 뚜껑의 높이를 동일하게 맞추기 용이한 높이조절형 맨홀 뚜껑 구조를 제안하였다. 제안된 맨홀뚜껑은 상판, 높이조절부, 하부프레임의 간단한 구조이다. 요구되는 품질 성능을 만족시키기 위한 맨홀 뚜껑의 보강 구조에 대한 설계변수를 파악하기 위하여 유한요소해석을 수행하였다. 맨홀 뚜껑에 작용하는 하중에 의한 응력의 분포나 변형의 대부분은 맨홀 뚜껑 상판과 결합된 부위에서 발생하는 것으로 확인되었다.