Bhutan Journal of Research and Development最新文献_第3页

Modeling and Simulation of Basochhu Hydropower Plant: Islanding Operation Using Real-Time Performance Data 基于实时性能数据的巴石竹水电站离岛运行建模与仿真

Bhutan Journal of Research and Development Pub Date : 2022-06-16 DOI: 10.17102/bjrd.rub.11.1.025

C. Dorji, Deependar Sharma, Yeshi Wangpo

{"title":"Modeling and Simulation of Basochhu Hydropower Plant: Islanding Operation Using Real-Time Performance Data","authors":"C. Dorji, Deependar Sharma, Yeshi Wangpo","doi":"10.17102/bjrd.rub.11.1.025","DOIUrl":"https://doi.org/10.17102/bjrd.rub.11.1.025","url":null,"abstract":"This paper presents the dynamic modeling and simulation of the 64 MW Basochhu Hydro investigation of its island mode operation and network restoration. A robust real-time simulation model is necessary to analyze the static and dynamic control and operating characteristics of hydropower plant, which can be empirically modeled based on real-time performance measurements. The schematic layout of the BHP from the reservoir (pond) to the turbine is divided into sub-components, each of which is represented by mathematical differential-integral equations. The composite model was then validated by comparing the simulated and real-time measured responses. The paper also examined the preliminary test results of island mode operation and restoration to grid connection. The midnight load of Thimphu was arranged for island operation taking into account of the minimal power disruption. At the instant of grid disconnection, the active power of the test unit fell freely from 13 MW to 9 MW, activating the deflector control instantly cutting off the water jets proportional to the power drop. The measurements and simulation results confirmed that the Basochhu Hydropower Plant has robust governor control systems, and it can withstand the island mode operation, and reliably feed the local load without the need for grid interconnection.","PeriodicalId":244206,"journal":{"name":"Bhutan Journal of Research and Development","volume":"11 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114125334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the Relationship between Class Participation and Student Performance in Science 探索课堂参与与学生科学成绩的关系

Bhutan Journal of Research and Development Pub Date : 2022-06-16 DOI: 10.17102/bjrd.rub.11.1.029

Dorji Kinley, Sushma Pradhan

{"title":"Exploring the Relationship between Class Participation and Student Performance in Science","authors":"Dorji Kinley, Sushma Pradhan","doi":"10.17102/bjrd.rub.11.1.029","DOIUrl":"https://doi.org/10.17102/bjrd.rub.11.1.029","url":null,"abstract":"This study is a cross-sectional study and finds out class participation as an essential indicator in elevating the performance of the students. It explored the factors affecting the degree of class participation and its effect on science performance. Students of grade IX were selected as the sample for the study. In addition to a structured, self-administered questionnaire, the mid-term exam result was taken as an academic performance of the students. Appropriate inferential statistical tests, like the t-test and Pearson’s Product Moment Correlation, were computed to find the gender differences in-class participation and academic performances of the students and their relationships respectively. Further, an Exploratory Factor Analysis (EFA) was performed to explore factors affecting class participation. The inferential statistics results indicated that while there is no statistically significant difference between class participation and academic performance in science by gender, there does exist a positive association between class participation and academic performance. The EFA results revealed three principal factors responsible for varying degrees of class participation, namely the students’ affective traits, students’ cognitive traits and teachers’ traits.","PeriodicalId":244206,"journal":{"name":"Bhutan Journal of Research and Development","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128628094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Review analysis on challenges, opportunities, and implementation strategies for the success of green public procurement, the context of Bhutan 以不丹为例，回顾对绿色公共采购成功的挑战、机遇和实施策略的分析

Bhutan Journal of Research and Development Pub Date : 2022-06-16 DOI: 10.17102/bjrd.rub.11.1.023

Hari Kumar Suberi

{"title":"Review analysis on challenges, opportunities, and implementation strategies for the success of green public procurement, the context of Bhutan","authors":"Hari Kumar Suberi","doi":"10.17102/bjrd.rub.11.1.023","DOIUrl":"https://doi.org/10.17102/bjrd.rub.11.1.023","url":null,"abstract":"This article explores the descriptive research review on Green Public Procurement Bhutan and enquires about systemic challenges in procurement practices and potential opportunities that tend to influence the development of sustainable consumption and production practice, which is based on the project experience that is documented in the project research reports. The research article adopts partially the design methodology and is defined by the analysis phase of the analysis-projection-synthesis approach to enquire the procurement system, which will define the normative value of the procurement system. From this article, it was identified that the systemic transformation is \u0000pre-requisite for sustainable public procurement deployment, which will require lifestyle transformation. Therefore, extensive stakeholder negotiation is a key aspect of the success of procurement system transformation and will require a multi-methodological worldview to enquire about the current system. The challenges, opportunities, and implementation strategies are context-dependent, which can be seen in the contextual scenario case, and potential for further research endeavors.","PeriodicalId":244206,"journal":{"name":"Bhutan Journal of Research and Development","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133048756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing Educating for Gross National Happiness in Bhutanese Schools: A new direction 评估不丹学校的国民幸福总值教育:一个新的方向

Bhutan Journal of Research and Development Pub Date : 2022-06-16 DOI: 10.17102/bjrd.rub.11.1.024

.. Kaka, Judith Miller, Nadya Rizk

{"title":"Assessing Educating for Gross National Happiness in Bhutanese Schools: A new direction","authors":".. Kaka, Judith Miller, Nadya Rizk","doi":"10.17102/bjrd.rub.11.1.024","DOIUrl":"https://doi.org/10.17102/bjrd.rub.11.1.024","url":null,"abstract":"Gross National Happiness (GNH), a concept that is rooted in Buddhist philosophies, underpins a range of educational policies in Bhutan. The Educating for GNH (EGNH) initiative was launched a decade ago to promote GNH values throughout the school system. However, whether EGNH has been a success is still contested with evidence lacking to support either view. Several issues arising from the implementation and evaluation of this initiative remain unaddressed. The five pathways to the EGNH have not been effectively institutionalized. Principals and teachers still lack the motivation and competency to infuse and integrate GNH values. More importantly, the Performance Management System (PMS) is questioned as a valid framework to monitor the primary purpose of providing adequate feedback and trustworthy recommendations for promoting and improving GNH practices. Based on the review of literature and some anecdotal evidence, the authors present the Theory of Practice Architectures as a new direction for investigating EGNH practices in the Bhutanese schools as it provides the theoretical framing for interrogating and potentially transforming educational practices.","PeriodicalId":244206,"journal":{"name":"Bhutan Journal of Research and Development","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122695400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Teacher’s Leadership Style on Student’s Academic Performance: a case of Business school 教师领导风格对学生学习成绩的影响:以商学院为例

Bhutan Journal of Research and Development Pub Date : 2022-06-16 DOI: 10.17102/bjrd.rub.11.1.027

R. Ratna, Antony A. Ligori Ligori, B. B. Rasaily, U. Lhamo, Selden Zangmo, Tshering Tshering, Sherab Gyeltshen

引用次数: 0

Detection of adulterants in some common food items available in the Bhutanese market 不丹市场上一些常见食品的掺假检测

Bhutan Journal of Research and Development Pub Date : 2022-06-16 DOI: 10.17102/bjrd.rub.11.1.026

J. R. Subba, S. Wangchuk

引用次数: 1

Modelling and optimization techniques of off-grid applications in developing countries 发展中国家离网应用的建模和优化技术

Bhutan Journal of Research and Development Pub Date : 2022-04-11 DOI: 10.17102/bjrd.rub.10.2.017

N. Sanjel, B. Baral

引用次数: 0

Green Urbanism: Adopting Sustainable Transport in Phuntsholing City 绿色城市主义:彭措林市采用可持续交通

Bhutan Journal of Research and Development Pub Date : 2022-04-11 DOI: 10.17102/bjrd.rub.10.2.021

Dhan Maya Chhetri, K. Wangmo, Kinley Dechen, Sonam Choden, Chimi Chimi

{"title":"Green Urbanism: Adopting Sustainable Transport in Phuntsholing City","authors":"Dhan Maya Chhetri, K. Wangmo, Kinley Dechen, Sonam Choden, Chimi Chimi","doi":"10.17102/bjrd.rub.10.2.021","DOIUrl":"https://doi.org/10.17102/bjrd.rub.10.2.021","url":null,"abstract":"The world today is facing a major crisis in energy, environment and climate. Human activities such as building, transportation and industries have caused tremendous impact on the natural environment. The irreversible growth of cities is an indication of more cars on the road, more mobility and ultimately to more energy consumption. The expansion of urban areas leads to the development of transportation routes and increase in the number of vehicle ownership. Bhutan has opened its doors from being a landlocked country to an internationally recognized country. Trade and industry have become an important sector in building the country’s economy, with rapid infrastructure development. The realization of the energy crisis is as new as the urbanization trend although there is dire need to adopt green energy practices. This study explores various strategies based on the concept Green Urbanism, specified to the topic, Sustainable Transport. It presents the current transportation trend in one of the major cities of Bhutan to highlight the growth pattern and their issues that could possibly threaten the energy balance. The main emphasis is on how the issues can be solved with sustainable strategies to achieve a livable city.","PeriodicalId":244206,"journal":{"name":"Bhutan Journal of Research and Development","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127067176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Assessment of Ambient Particulate Matter Concentrations- PM10, PM2.5 and PM1 at Rinchending in Phuentsholing, Bhutan 不丹彭措林市 Rinchending 的环境颗粒物浓度评估--PM10、PM2.5 和 PM1

Bhutan Journal of Research and Development Pub Date : 2022-04-11 DOI: 10.17102/bjrd.rub.10.2.019

Bharat Kumar Humagai, Kirtan Adhikari, Basant Pradhan, T. Yangzom

{"title":"Assessment of Ambient Particulate Matter Concentrations- PM10, PM2.5 and PM1 at Rinchending in Phuentsholing, Bhutan","authors":"Bharat Kumar Humagai, Kirtan Adhikari, Basant Pradhan, T. Yangzom","doi":"10.17102/bjrd.rub.10.2.019","DOIUrl":"https://doi.org/10.17102/bjrd.rub.10.2.019","url":null,"abstract":"This paper presents the analysis and interpretation of daily, monthly and seasonal cycle of 1- minute average Particulate Matter (PM10, PM2.5 and PM1) concentrations measured in Rinchending, located on the hilltop, 4 km away from Phuentsholing, the second largest city in Bhutan between the period of March 2018 to March 2019. In diurnal cycle, the highest concentrations of PM were observed between 9AM – 10 AM in the morning and 5PM-7PM in the evening corresponding to the peak traffic hours. The concentrations of PM showed highest in the post-monsoon season, corresponding to October to February in Bhutan (PM10=57.36 μg/m3, PM2.5=33.73 μg/m3 and, PM1=29.28) compared to monsoon season corresponding to June-September (PM10=22.70 μg/m3, PM2.5=15.51 μg/m3 and, PM1=11.35) and pre-monsoon season corresponding to March-May (PM10=54.9 μg/m3, PM2.5=30.58 μg/m3 and, PM1=24.36). The frequency distribution of PM10 showed that upto 25% of the time, the concentration was upto 20.8 μg/m3, 50% of the time, the concentration was upto 35.3 μg/m3 and 75% of the time, the concentration was upto 59 μg/m3.Similarly, the frequency distribution of PM2.5 showed that upto 25% of the time, the concentration was upto 13.5 μg/m3, 50% of the time, the concentration was upto 22 μg/m3 and 75% of the time, the concentration was upto 38 μg/m3.The annual mean concentrations of PM10 (45.08 μg/m3) were violating the Annual WHO ambient air quality standard (20 μg/m3). The annual mean concentrations of PM2.5 (26.83μg/m3) were also violating the Annual WHO ambient air quality standard (10 μg/m3). The wind analysis done through the wind rose diagram found a dominant south and south-west wind pattern.","PeriodicalId":244206,"journal":{"name":"Bhutan Journal of Research and Development","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131465706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gamified learning environment (GLE): A Case study to compare between traditional learning and Gamified learning environment. 游戏化学习环境(GLE):一个比较传统学习和游戏化学习环境的案例研究。

Bhutan Journal of Research and Development Pub Date : 2022-04-11 DOI: 10.17102/bjrd.rub.10.2.022

Kinzang Pelden

引用次数: 0