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The Effect of Industrial Agglomeration on Economic Growth in East Java, Indonesia
Arief Tri HARDJOKO,Dwi Budi SANTOSO,Agus SUMAN,Rachmad Kresna SAKTI 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.10
Industrial agglomeration policy is a strategy that is expected to accelerate economic growth to transform an impoverished region into a prosperous one. However, industrial agglomeration also has the potential to exacerbate development inequality due to the concentration of economic development activities in certain areas. Therefore, this study aims to investigate what strategies are best to minimize the adverse effects of industrial agglomeration. This study uses econometric analysis with panel data covering 38 districts/cities in East Java during the 2011–2019 period. The results showed that the combination of industrial agglomeration policies coupled with accelerated sectoral growth, hard infrastructure development, and soft infrastructure provided the best policy outcome, improving regional inequality and accelerating economic growth in East Java. Based on the analysis, we find that East Java’s economic growth characteristics are convergent but relatively long. Therefore, the East Java economic development policy during 2010–2019 should be reviewed due to the relatively long convergence period. Furthermore, this study also found that industrial agglomeration slows down the convergence and economic growth of East Java. In the future, the deployment of Industrial Development Centers (PPI) outside the existing eight districts/cities is needed to accelerate the spread of economic activity in East Java.
( Arief Rizqiyanto Achmad ),( Chang-wook Lee ) 대한원격탐사학회 2021 大韓遠隔探査學會誌 Vol.37 No.1
By the end of December 2020, an earthquake with Mw about 6.4 hit Sisak-Moslavina County, Croatia. The town of Petrinja was the most affected region with major power outage and many buildings collapsed. The damage also affected neighbor countries such as Bosnia and Herzegovina and Slovenia. As a light of this devastating event, a deformation map due to this earthquake could be generated by using remote sensing imagery from Sentinel-1 SAR data. InSAR could be used as deformation map but still affected with noise factor that could problematize the exact deformation value for further research. Thus in this study, 17 SAR data from Sentinel-1 satellite is used in order to generate the multi-temporal interferometry utilize Stanford Method for Persistent Scatterers (StaMPS). Mean deformation map that has been compensated from error factors such as atmospheric, topographic, temporal, and baseline errors are generated. Okada model then applied to the mean deformation result to generate the modeled earthquake, resulting the deformation is mostly dominated by strike-slip with 3 meter deformation as right lateral strike-slip. The Okada sources are having 11.63 km in length, 2.45 km in width, and 5.46 km in depth with the dip angle are about 84.47° and strike angle are about 142.88° from the north direction. The results from this modeling can be used as learning material to understand the seismic activity in the latest 2020 Petrinja, Croatia Earthquake.
Arief R. Achmad,이슬기,박성재,엄진아,이창욱 한국지질과학협의회 2020 Geosciences Journal Vol.24 No.6
The Baekdu Volcano is located on the border between Jilin Province, China, and Ryanggang Province, North Korea. Its 946 AD eruption had a Volcanic Explosivity Index (VEI) of 7, making it among the most massive eruptions in the past 2000 years, a “Millennium eruption”. Mount Baekdu may erupt in the near future. To examine the future impact of Mount Baekdu, we generated a synthetic interferogram using a Mogi model equation to produce a simulated surface deformation phase and added simulated orbital error, topographic error, and atmospheric effects phases. We output the simulation results to the program LAHARZ, which can generate a potential hazard zone due to lahar flow. Using LAHARZ, the area affected by a Baekdu lava flow would be 4.575, 14.522, 15.866, 60.351, 404.848, 3,019.298, and 6,001.885 km2 with a VEI scale eruption of 1 to 7, respectively, while the synthetic interferogram showed that the simulated surface deformation at Mount Baekdu would be 0.04 cm, 0.1 cm, 0.7 cm, 10 cm, 1 m, 12 m, and 100 m according to the VEI category. This study can be used to estimate the interferometric synthetic aperture radar (SAR) surface deformation of Mount Baekdu and produce a hazard inundation zone map with a more certain lahar flow volume in an actual volcanic eruption and surface deformation detected using SAR images on inflation of the magma chamber.
Arief Nur Pratomo,Sigit Puji Santosa,Leonardo Gunawan,Ichsan Setya Putra 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.5
The demand for blastworthy structures increases due to a large number of casualties in the armored vehicle undergoing improvised explosive device (IED) and landmine attacks. In this research, the numerical studies on the countermeasure analysis to reduce injury biomechanics risk were conducted. The available experiment data of occupant survivability test on a medium size tank was used to validate the numerical model. The subsystem evaluation in this study included the finite element modeling of military personnel, seat system, surrounding interior system, seatbelt, and restraint system with four running conditions. The military personnel inside the armored vehicle was modeled by using Hybrid III 50 th percentile anthropomorphic test device (ATD) and its biomechanical response was monitored on the head, neck, thorax, spine, femur, and tibia. The load case for this study referred to NATO STANAG 4569 level 3b with 8 kg TNT explosive load underbelly. The injury assessment reference values (IARV) for the regulation used in this study were based on AEP-55 volume 2. Based on this study, the critical injuries identified on the head injury, neck compression, and tibia axial load. The solid frame as part of seat structure appeared to contribute to an excessive kinematic on the lower extremities. The vehicle acceleration resulted from the load blast was directly transmitted to the lower extremities, resulting in unintended kinematic and interaction on the passenger body. The proposed solutions were to introduce a flexible mounting for the seat system and as well increasing the height of the footrest to avoid direct transmission of vehicle acceleration. The modified countermeasure design reduced significantly head, neck, and tibia injury criteria more than 90 % from the baseline design (existing design). The new anti-mine seat design successfully passed all the standard regulation thresholds of injury criteria.
Arief Rahman Hakim,Andang Widi Harto,Alexander Agung 한국원자력학회 2019 Nuclear Engineering and Technology Vol.51 No.1
One of proposed Accident Tolerant Fuel (ATF) concept is fully ceramic micro-encapsulated fuel (FCMF). FCMF using uranium mononitride (UN) has better safety aspects than UO2 pellet fuel although it mightnot have a better neutronic performance due to the presence of matrix and high neutron-inducedinteraction of 14N. Before implementing UN-FCMF technology in Small-PWR, further research must betaken place to make sure the proposed design of fuel assembly has inherent safety features and maintainthe fuel performance. This study focusses on the neutronic analysis of UN-FCMF based fuel assemblyusing Serpent and SCALE codes. It is shown in the proposed fuel assembly design has inherent safetyfeatures with respect to the fuel temperature reactivity coefficient, void reactivity coefficient, andmoderator temperature reactivity coefficient. It is noted that the use of FCMF leads to a lower ratio ofburnup to 235U enrichment ratio compared to the UO2/Zr fue
HPC/HC opt-aiNet-based Scheduling
Arief Zulianto,Kuspriyanto,Yudi S. Gondokaryono 한국정보통신학회 2019 2016 INTERNATIONAL CONFERENCE Vol.11 No.1
Diversity of computing power and interconnections between processing element caused heterogeneity in High Performance Computing (HPC). The heterogeneity in HPC will affect the completion time of each task that has been assigned to the processors. This increases the complexity of scheduling problems, thus the effort to obtain optimal makespan becomes challenging. Scheduling problems in HPC with respect to the heterogeneity, can be solved by applied the opt-aiNet algorithm. Better result achieved compared to scheduling using Heterogeneous Earliest Finish Time (HEFT), which has been popular. In general, scheduling with opt-aiNet yield better makespan than scheduling with HEFT. Best results obtained in this research was 0.37 to 0.99 times shorter than makespan produced by HEFT algorithm, obtained for communication intensive task (high CCR).
Muhammad Arief AFFANDI,Etty MURWANINGSARI,Sekar MAYANGSARI,Susi DWIMULYANI 한국유통과학회 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.11
This research is aimed at examining the effect of the implementation of ABAS and BR on GFP with FDM as mediation. Respondent of research is 100 civil servants at the Directorate General of Population and Civil Registration of the Ministry of Home Affairs for the Republic of Indonesia. Data analysis is done with WarpPLS. Result of research shows that the implementation of ABAS has direct and indirect effects on GFP, and the indirect effect involves the mediation of FDM. Other result indicate that the making of proper financial decisions will help improving GFP. The effectiveness of financial decisions are able to mediate the implementation of ABAS in improve GFP. Meanwhile, BR does not affect GFP, either directly or indirectly through FDM. BR seems oriented more toward improving public service and people’s welfare. This research suggests that the next research should examine whether the implementation of BR can improve governmental organizational performance in delivering public service. This research has proven that the implementation of ABAS has helped in improving the quality of FDM, while the other benefit is that this system improves GFP. Moreover, this research also gives confirmation that accounting information in good quality will be very useful in FDM.