成功的 對潛作戰을 위한 海洋學의 利用

Bambang Walujo Djati 해군대학 1988 海洋戰略 Vol.- No.54

The Role of Biotechnology for Sustainable Development in Indonesia

Bambang PRASETYA 한국생물공학회 2010 한국생물공학회 학술대회 Vol.2010 No.4

The Effect of Spiritual Marketing and Entrepreneurship Orientation on Determining Sustainable Competitive Advantage

BAMBANG, Ahmad,KUSUMAWATI, Andriani,NIMRAN, Umar,SUHARYONO, Suharyono Korea Distribution Science Association 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.2

The purpose of this study is to apply Structural equation modeling (SEM) analysis with Generalized Structured Component Analysis (GSCA) and translate the effect of Spiritual Marketing and Entrepreneurial Orientation on Sustainable Competitive Advantage with Marketing Capabilities as Mediation, especially for General BBM marketing at PT. Pertamina (Persero). The quantitative approach in this study uses a survey method by taking samples from the population. The survey was conducted by distributing questionnaires to respondents. Data analysis was performed using SEM and analyzed using the GSCA model. The population of this study consisted of 3,207 workers in central and regional marketing offices (Marketing Operation Region (MOR) spread throughout Indonesia. Therefore, a sample of 356 respondents was taken according to the Slovin formula. Spiritual marketing and entrepreneurial orientation directly influence the ability to improve Innovation which directly influences sustainable competitive advantage. Therefore, to develop a sustainable competitive advantage in marketing Pertamina's General BBM, it is necessary to implement spiritual marketing and improve entrepreneurial orientation. The novelty in this study lies in the unprecedented research on the role and position of spiritual marketing towards marketing capabilities and sustainable competitive advantage, combined with entrepreneurial orientation variables.

The dependence of microdroplet size on the parameters governing the dewetting process on circular micropillar arrays

Bambang Arip Dwiyantoro,Shiu-Wu Chau 대한기계학회 2013 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.27 No.7

We theoretically investigated the correlation among the size of microdroplet, the geometrical parameters of circular micropillars, and the parameters governing the dewetting process. Dimensional analysis is used to determine independent dimensionless groups to characterize the diameter of microdroplet, i.e., the Ohnesorge number (Oh), the capillary number (Ca), the dimensionless liquid thickness (H),and the contact angle (θ ). The simulation results show that the size of microdroplet on the top surface of micropillar depends on the parameters in the dewetting process. The dimensionless droplet diameter (d) grows with the increase of H, where d becomes saturated provided H reaches a critical value of 2.5. The decrease of Ohnesorge number results in microdroplets with large diameter. For small contact angle, the top surface of micropillar is mostly wetted, which leads to large microdroplets. When the value of the capillary number increases,the viscous force on the top surface of micropillar magnifies, and leads to the growth of droplet diameter until the value of Ca reaches a critical value. For H < 2.5, the magnitude of the critical capillary number (Cac) depends on Oh, θ, and H*, while Cac is a constant for H ≥ 2.5. The dimensionless droplet diameter (d) can be determined by the product of functions of Oh, θ, H*, and Ca*.

A study on in-cylinder flow field of a 125cc motorcycle engine at low engine speeds

Bambang Wahono,Yanuandri Putrasari,임옥택 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.9

The in-cylinder flow characteristics of a four-stroke, four-valve, pent-roof small engine of motorcycle at engine speeds from 2000 rpm to 4000 rpm were studied using computational fluid dynamics (CFD). The aim of this study was to investigate the in-cylinder flow characteristics of small engines, including tumble, swirl, turbulent kinetic energy (TKE), angular momentum, in-cylinder air mass, turbulent velocity, turbulent length scale, and air flow pattern (in both intake and compression strokes) under motoring conditions. The engine geometry was created using SolidWorks, then was exported and analyzed using CONVERGE, a commercial CFD method. Grid independence analysis was carried out for this small engine and the turbulence model was observed using the renormalized group (RNG) k-ɛ model. The pressure boundary conditions were used to define the fluid pressure at the intake and exhaust of the port. The results showed that the increase in the engine speed caused the swirl flow in the small engine to be irregularly shaped. The swirl flow had a tendency to be stable and almost constant in the beginning of the compression stroke and increased at the end of compression stroke. However, the increase of in engine speed had no significant effect on the increase in tumble ratio, especially during the intake stroke. There was an increase in tumble ratio due to the increase in engine speed at the end of compression stroke, but only a marginal increase. The increase in engine speed had no significant effect on the increase in angular momentum, TKE, or turbulent velocity from the early intake stroke until the middle of the intake stroke. However, the angular momentum increased due to the increase in engine speed from the middle of the intake stroke to the end of compression stroke, and the angular momentum achieved the biggest increase when the engine speed rose from 3000 to 4000 rpm by 10 % at the end of the intake stroke. The increase in engine speed caused an increase of TKE and turbulent velocity from the middle of intake stroke until the end of compression stroke. Moreover, the biggest increase of TKE and turbulent velocity occurred when the engine speed rose from 3000 to 4000 rpm at the middle of intake stroke around 50 % and 25 %, respectively. Turbulent length scales appeared to be insensitive to increasing engine speed, especially in the intake stroke until 490 °CA. From that point, the value of the turbulent length scale increased as engine speed increased. The biggest increase in the turbulent length scales occurred when the intake valve was almost closed (around 20 %) and the engine speed was within two specific ranges (2000 to 3000 rpm and 3000 to 4000 rpm). Regarding the effect of engine speed, there were no significant effects upon the accumulated air mass in the small engine. The increase in engine speed caused an increase of turbulence in the combustion chamber during the late stages of the compression stroke. The increase in turbulence enhanced the mixing of air and fuel and made the mixture more homogeneous. Moreover, the increase in turbulence directly increased the flame propagation speed. Further research is recommended using a new design with several types of intake ports as well as combinations of different intake ports and some type of piston face, so that changes in air flow characteristics in small engines can be analyzed. Finally, this study is expected to help decrease the number of experiments necessary to obtain optimized systems in small engines.

Hedonic Shopping Motivation and Impulse Buying: The Effect of Website Quality on Customer Satisfaction

Bambang WIDAGDO,Kenny ROZ 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.1

The sophistication of technology information has led to a series of innovative activities in the economy, particularly in buying and selling products and services both conventionally and online. Currently online activities provide opportunities for customers to get the desired needs. The purpose of this research is to examine the effect of website quality, hedonic shopping motivation, and impulse buying on customers’ satisfaction of online shopping in Indonesia. Eight online marketplaces are the focus of this research. This study uses a quantitative approach. This is a structural equation research with data obtained from 177 students through an online questionnaire using a five-point Likert scale; the selection criteria is having shopped online from various universities in Indonesia. The statistical testing tool used is SPSS 26.0, with the effect between variables determined using Partial Least Square (SmartPLS 3.0). The findings of this study indicate that the nine proposed hypotheses are accepted, positively and significantly, directly or indirectly, which are supported by previous research to reinforce the findings that have been found. The interesting attributes associated with this study are hedonic shopping motivation and impulse buying that mediate the relationship between website quality and customer satisfaction of online shopping in Indonesia’s marketplace.

Factors Influencing the Implementation of Non-profit Organization Financial Statements of Political Parties: Evidence from Indonesia

Bambang JATMIKO,Titi LARAS,Anatya WIJAYANTI 한국유통과학회 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.11

This study aims to find out whether political parties apply financial reports under PSAK (Statement of Financial Accounting Standards) No. 45. The Stewardship Theory provides the analytical framework. The objects in this study were 16 Yogyakarta City Political Parties in the Special Region of Yogyakarta, with the total number of 64 respondents. The application for processing data in this study used SPSS 22 version. Based on the results of analyzing data, H1, which had a sig (2-tailed) value of 0.026 <0.05, then H0, stating that there was an influence of the statement of financial position on the implementation of PSAK, was rejected. H2 had a sig (2-tailed) value of 0.116> 0.05, so that H0, stating that there was no significant effect of the activity report on the implementation of PSAK, was accepted. H3 had a sig (2-tailed) value of 0.027 <0.05, meaning that it rejected H0, which stated that there was a significant effect of the cash flow statement on the implementation of PSAK. Furthermore, H4 had a sig (2-tailed) value of 0.744> 0.05, indicating that H0 was accepted, stating that there was a significant effect of notes to the financial statements on the implementation of PSAK.

A double wall reactor for supercritical water oxidation: Experimental results on corrosive sulfur mustard simulant oxidation

Bambang Veriansyah,Jong-Chol Lee,김재덕 한국공업화학회 2009 Journal of Industrial and Engineering Chemistry Vol.15 No.2

The corrosion of reactor is one of the obstacles that inhibiting the development of supercritical water oxidation (SCWO) into a viable industrial process. A concentric vertical double wall reactor has been developed in which SCWO reaction takes place inside an inner tube (titanium grade 2, non-porous) whereas pressure resistance is ensured by a Hastelloy C-276 external vessel, to handle high-risk wastes resulting from munitions demilitarization. Experimental results concerning the oxidation of a mixture of thiodiglycol [TDG, (HOC2H4)2S] and hydrochloric acid [HCl], which is used as a sulfur mustard stimulant, confirmed the ability of the reactor to treat corrosive wastes. High destruction rates based on total organic carbon were achieved (>99%) without production of chars or undesired gases such as carbon monoxide and methane. The carbon-containing product was carbon dioxide. Sulfur and chloride were totally recovered in the aqueous effluent as sulfuric acid and hydrochloric acid. No corrosion was noticed in the reactor. The titanium tube shielded the pressure vessel from corrosion. 2009 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

A Study on Effect of The Intake Port Modification on the In-Cylinder of Small Engine

Bambang Wahono,Ocktaeck Lim 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11

Partisan Journalism: Review of the Behavior of Mass Media in Legislative Election and Indonesia Presidential Election of 2014

Bambang Winarso 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.12

In the political process preceding the election of legislative members, president, and vice president in 2014, there has been exploitation of the use of the media to win the candidates in print media (newspapers and magazines), electronic media (radio and television), as well as online media (social media networks). It can be seen that capitalism of media through the framing of news and information has generated a new phenomenon in the world of broadcasting and press. Many stories are neither appropriate nor newsworthy yet forced to be aired in order to fulfill the lust for power. Studies on the role of TV station in disseminating information preceding, during, and succeeding the presidential election in July 9, 2014 are important to conduct to see the motives underlying the behavior that violates the applicable laws and code of ethics and code of conduct. This study analyzes and tries to understand the phenomenon of partisanship in mass media, particularly television, towards one faction of the candidates for president and vice president in the presidential election in 2014, reviewed by the Theory of Phenomenology by Edmund Husserl or Alfred Schutz as well as other relevant theories.