Assessment of Impact of Country Business Ranking on Economi c Development: An Empirical Analysis

Khan,Mohd Naved People & Global Business Association 2024 Global Business and Finance Review Vol.29 No.3

Purpose: The World Bank's “Ease of Doing Business” index, among other business rankings, can help a country's economic progress by attracting foreign investments, encouraging entrepreneurship, and improving the business climate. Superior rankings indicate an optimised environment for business activities, which could boost investments, job opportunities, and overall economic growth. The research is conducted to assess the impact of a country's business ranking on economic development. Design/methodology/approach: The Structural Equation Modelling (SEM) method was used to assess the impact of a country's business ranking on its economic trajectory. The official World Bank report was used to obtain data from 2015 to 2021. Panel data of Global Innovation Ranking, Ease of Doing Business Ranking, and Business Freedom Ranking from 2016 to 2021 is the basis of this study. The researcher has used a conceptual framework to establish and understand the dependence among the dependent and independent variables. For measuring statistical association, the researcher has used structural equation modelling and path diagram along with correlation and regression analysis. The correlation has been used to assess their association, while the researcher has used regression to determine the impact of country business ranking. Findings: The investigator investigated the impact of India's standings in the Global Innovation Ranking, Ease of Doing Business Ranking, and Business Freedom Ranking on its Economic Development, specifically GDP, in this study. The study's findings show that India's business rankings have a significant impact on its economic development. Such global business rankings provide critical data points for policymakers, businesses, and investors to make informed decisions, thereby promoting economic growth. Furthermore, the study examined the effects of GDP growth on the combustion of fossil fuels, as measured in million tonnes, emphasising the environmental consequences of economic expansion. Research limitations/implications: It's imperative to note that this is just an estimate, and the actual relationship between the variables in the population may differ from this estimate. The estimate is based on the sample data used to fit the model and may not accurately reflect the true relationship in the population. Further analysis and interpretation of the model's goodness of fit and consideration of other factors, such as outliers or omitted variables, are essential to fully apprehend the relationship between “GIR” and the dependent variable. The results of global business rankings can help policymakers identify areas for improvement in their country's business environment. By focusing on the areas where their country is lagging behind, they can develop policies and initiatives to attract more investment, create a more favourable business environment, and support economic growth. Businesses can use the results of global rankings to evaluate potential locations for expansion or investment. It can provide insights into the ease of starting and running a business, access to credit, property rights protection, and other important factors to businesses. Investors can also use the results of global rankings to make informed decisions about where increased investment and economic growth. Global business rankings generally provide valuable information that policymakers, businesses, and investors can use to make informed decisions and support economic development. Originality/value: I hereby attest that the research paper I have submitted is the result of my own independent and unique labor. All of the sources from which the thoughts and passages were derived have been properly credited. The work has not been submitted for publication anywhere and is devoid of any instances of plagiarism.

NUMERICAL SIMULATION OF LUBRICANT PROPERTY IMPACT ON POOL BOILING

K. Han 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6

Lubricant thermo-physical property impact on pool boiling was investigated with the assistance of computational fluid dynamics. The mixture of R123 refrigerants and lubricants (Hexane, mineral oil) was used as working fluid. The effect of density, thermal conductivity, surface tension, contact angle, viscosity, specific heat, and latent heat of lubricant on pool boiling was numerically analyzed. Thermal conductivity and density influence on heat transfer was relatively significant compared to other properties but they were not enough to explain the actual heat transfer enhancement level of pool boiling. Bubble dynamics responded to contact angle variation sensitively and nearby bubble behavior should be considered to explain high heat transfer improvement mechanism in actual measurement. The bubble departure diameter, the bubble departure time, and heat transfer coefficients at the bubble departure instant were presented with lubricant property change.

Numerical optimization of microfin tube geometries in a superheated condition

K. Han 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6

An optimized microfin tube geometry is derived with the assistance of computational fluid dynamics and the design of experiment to maximize heat transfer while minimizing pressure drop. Considered geometrical parameters are number of fins, spiral angle, and fin height. R410A is used as a working fluid, and simulations are conducted in a superheated condition for aluminum tubes with a 9.525 mm outside diameter. Non-dimensional parameters are introduced to evaluate heat transfer enhancement and pressure drop increase compared to a smooth tube having the identical outside diameter. Clear evidence of interaction between spiral angle and fin height is detected with statistical analysis.

Computational Fluid Dynamics Modeling for Steam Condenser Corrosion

K. Han 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11

Computational fluid dynamics (CFD) modeling was developed for uniform carbon dioxide corrosion, especially for steam condenser application. The electrochemical reactions of hydrogen ion reduction, carbonic acid reduction, and anodic dissolution of iron were taken into account. A single-phase model in aqueous carbon dioxide solutions was tuned with available experimental results and was expanded to homogeneous vapor-liquid mixture flow. The corrosion rate was analyzed while varying operating temperature, pH, fluid velocity, liquid volume fraction, and liquid droplet diameter. It was found that pH and temperature impact the corrosion rate significantly while the other variables showed relatively minor effects. The detailed electrochemical reaction modeling for computational fluid dynamics was described along with the limitations of two-phase flow application.

Preparation and Evaluation of PLA / PLGA Microsphere Containing recombinant Human Epidermal Growth Factor ( rhEGF ) [ KSP , CRS Joint Symposium , Seoul , Korea , 1997 ]

K. Han 충북대학교 약품자원개발연구소 1997 약학논문집 Vol.12 No.-

Numerical simulations on fault behaviors of heat pump systems with multi-indoor coils

K. Han 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11

A series of heat pump system simulations are carried out to develop a fault detection method, especially for a system having multi-indoor coils. Five major faults like refrigerant overcharge, undercharge, reduced indoor coil air flow, reduced outdoor coil air flow, and superheat control are systematically varied in three distinctive levels. The system behavior is described with evaporation temperature, compressor discharge temperature, saturated condensing temperature, subcooling, indoor air side temperature rise, and outdoor air side temperature drop by imposing individual and simultaneous faults. The multi-fault behavior cannot be explained with individual fault characteristics. Simple fault prediction models are presented for both single and multi-indoor systems, respectively.

Microfin tube geometry optimization in an evaporator

K. Han 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.11

An optimized microfin tube geometry is derived for an evaporator using the particle swarm optimization technique. The considered system is a 2-ton residential air-conditioning unit using R-32 refrigerant. Generalized flow boiling heat transfer, and pressure drop correlations are used for investigating the geometrical impact on COP. Considered geometrical parameters are fin height, number of fins, and helix angle of fins. A series of system simulations are conducted to obtain COP for each microfin tube design. It is found that fin height is the most influential geometrical parameter for COP.

Heat exchanger capacity control by air recirculation in cold regions

K. Han 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11

The purpose of this numerical simulation is to investigate the thermal capacity control method of a heat exchanger using air as cooling medium in a cold region. Various airflow restriction methods were modeled to estimate the air temperatures and velocities, which are critical parameters to air-cooled heat exchanger thermal performance. The impact of blocked air openings and air flow area restrictions were simulated with the help of computational fluid dynamics. It is found that by restricting airflow through heat exchanger inlets and outlets in different configurations, the average air velocity and air temperatures to the primary heat exchangers can be varied by to 0.4 ㎧ and 12 K, respectively.

Wind screen effect on water spray cooling performance in an air-cooled heat exchanger

K. Han 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11

A numerical study was conducted to investigate the water spray cooling effect in an air-cooled heat exchanger equipped with a wind screen. Using a real scale operating condition, the effects of windscreen distance from fan, wind speed, wind screen length, and wind screen material were investigated. Dry bulb temperature drop and air flow rate into heat exchanger were used to describe the thermal performance of an air cooled heat exchanger. CFD results show inappropriate wind screen location is not helpful to minimizing fan performance deterioration. It was found that screen material and the vertical screen length should be determined carefully to maximize windscreen performance considering wind speed.

사회과 지리 학습에서 우리나라 초·중등 학생들의 사고 특성과 문제점 : SOLO 분류적 접근

이간용 한국사회과교육연구학회 2004 사회과교육 Vol.43 No.2

사고 학습을 강조하는 기존의 연구들은 우리나라 학생들이 사고력이 빈약하다는 점을 공통의 출발점으로 삼고 있지만, 사고의 전개 과정 중 어느 단계나 맥락에서 문제가 있는지는 구체적으로 밝히지 않은 채 논의를 전개해 온 것 같다. 이에 본 논문은 사회과 지리 학습에서 우리나라 초·중·고 학생들이 지리적 사고 과정에서 보여주는 특성과 문제점을 구체적, 실증적으로 밝히고자 SOLO식 순차적 평가 과제를 개발하여 학생들에게 제시한 다음, 그 반응을 분석한 사례 연구이다. 분석 결과, 학생들은 단일 및 다중 정보의 파악 면에서는 탁월한 능력을 보였지만, 지식의 질적 전환이 이루어지는 '관계화 단계'에서는 정답률이 현저하게 저하되고 있었다. 즉, 정도의 차이는 있으나 거의 모든 학령대에서 지리적 정보간 '관계 짓기'나, 혹은 공간 관계의 파악 과정에서 심각한 어려움을 겪는 특성과 문제점을 확인할 수 있었다. This paper intends to elucidate the problem in thinking process of Korean students through SOLO model-based testlets. They were asked to respond to these testlets. The results are as follows; Most of the Korean students have difficulty for a 'relational stage' at SOLO levels or contexts regardless of school grade. Thus, the researchers who would study these tasks should reinforce the instructions and assessment methods to fill up and deal with the problem. Also geography teaching-learning activities and studies should bring focus into interrelating a geographical concepts, knowledges, and informations; that is, looking for the spatial relationships.