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"The main objective of this paper is to review and examine the effects of the selected collision parameter values on the characteristics of collision energy in several ship collision scenarios. The benchmarking particulars were taken from the ship-to-ship collision case on Sunda Strait in 2014, while the collision process was modeled with non-linear simulations using the finite element (FE) method to determine the predicted damage and internal energy in the collision process. In the first phase, the verified model for the numerical simulation was built based on the benchmarks and other previous findings by researchers. The study of parameters during the collision process was performed in a later stage. The location of the target point in the vertical axis and the effect of the collision angle were the primary main focuses. The characteristics of damage and energy tendencies will be presented. One remarkable findings was that the structure of the car deck showed a better resistance and was more difficult to destroy than the other proposed locations. The angle position between the two objects during the impact process significantly contributed to the damage pattern on the side hull. The final results also indicated that the cross-section of the target point?s location influenced the observed parameters."

"The main objective of this paper is to review and examine the effects of the selected collision parameter values on the characteristics of collision energy in several ship collision scenarios. The benchmarking particulars were taken from the ship-to-ship collision case on Sunda Strait in 2014, while the collision process was modeled with non-linear simulations using the finite element (FE) method to determine the predicted damage and internal energy in the collision process. In the first phase, the verified model for the numerical simulation was built based on the benchmarks and other previous findings by researchers. The study of parameters during the collision process was performed in a later stage. The location of the target point in the vertical axis and the effect of the collision angle were the primary main focuses. The characteristics of damage and energy tendencies will be presented. One remarkable findings was that the structure of the car deck showed a better resistance and was more difficult to destroy than the other proposed locations. The angle position between the two objects during the impact process significantly contributed to the damage pattern on the side hull. The final results also indicated that the cross-section of the target point’s location influenced the observed parameters."

"We conducted a finite element simulation by using a computer program, ATENA, to verifythe behavior of T-section reinforced concrete beams strengthened by bonded wireropes in the negative moment region with a pretensioned initial prestressing force; we compared thisbehavior with that in experimental tests. The simulation was performed on five models consistingof one unstrengthened beam and beams strengthened by wire ropes with initial prestressing forces of 0%, 10%, 20%,and 30%. We found that the capacity of a flexuralload had the ratios to the experimental results close to 1 ? that is, 1.25, 1.16, 1.12, 1.01, and 1.10, for UB, SB1, SB2,SB3, and SB4, respectively. The ratios of effective stiffness, as the result ofthe simulation, to the experimental results were 1.45, 1.08, 1.76, 2.13, and2.46 for UB, SB1, SB2, SB3, and SB4, respectively. We also observed that crack propagation developedin the finite element simulation indicated that all modelsunderwent flexural failure."

"Antenna can be one of the largest components in a wireless device; therefore antenna miniaturization can reduce the overall size of wireless devices. One method used to reduce the element size of an antenna is by using metamaterial structures. This paper discusses a Left-Handed Metamaterial (LHM) structure stacked on a two-element microstrip antennas array for miniaturization and gain enhancement at a frequency of 2.35 GHz. To observe the impact of the LHM structure on the antenna, first this paper discuss the design of a conventional rectangular shape microstrip antenna without a LHM structure, then a design of the LHM structure which shows both negative permittivity and negative permeability. This LHM structure is then implemented on a conventional single element microstrip antenna and on a two-element microstrip antennas array. Results and discussion of implementation of the LHM structure on the conventional microstrip antenna is provided in this paper.

The results show that good agreement between simulated and measured results has been achieved. The simulation results show that the antenna works at a frequency of 2.29?2.42 GHz with a bandwidth of 128 MHz (5.4%) and a gain of 8.2 dBi, while the measurements show that the antenna works at a frequency of 2.26?2.41 GHz with a bandwidth of 146 MHz (6.21%) and a gain of 8.97 dBi. In addition, by comparing the substrate dimension for the two element array antennas, with and without the LHM structure, shows a 39% reduction is achieved."

"This paper describes thecase study of Semanggi intersection in Jakarta, a dynamic model of emissionreduction in the land transportation sector. The urban transportation system isa complex system with multiple variables, feedback loops, and is influenced bysocial, economic and environmental factors. The proposed model consists of twosubmodels: Vehicle Fleet and Emission Calculation. The model runs inPowersim Studio software using data from the Indonesia Japan EconomicPartnership Agreement, and the TrafficManagement Centre of the Indonesian National Police. The test was conducted by developing two scenarios:Business As Usual and Intention. The estimated results to beobtained using the first scenario in 2021 should be 1,113,398 units, while thesecond scenario is estimated to produce 850,733 units. We hypothesize that theIntentional Approach will have a more significant impact than the TechnicalApproach, which requires more investment. The Intentional Approach is designed to improve the intention ofprivate car users to switch to public transportation. The Technical Approach to the emission measurement of everyvehicle in a certain area is the data of vehicle emission which are usuallytaken to determine the current condition. This research will no doubthave a positive impact on emission reduction in Jakarta."

"Literature studiesindicate that information technology (IT) clusters encourage innovation andincrease firm-level productivity by providing external economies and facilitatingjoint action for its members. The purpose of this study is to identify theexternal economy and joint action factors that affect firm innovation andproductivity in the IT cluster. A research model was developed based on earliermodels of joint action and external economies. The model consists of three externaleconomy related factors, i.e., access to skills, finance, and infrastructure, aswell as three joint action related factors, i.e., vertical, horizontal, andresearch and development (R&D) cooperation as the independent variables,firm innovation as the intervening variable, the firm?s absorptive capacity asthe moderating variable, and firm productivity as the dependent variable. Datacollection was conducted through a survey with respondents from 32 IT firmslocated in three clusters in Bandung and one cluster in Cimahi (West Java ?Indonesia). The partial least square (PLS) approach was used for hypothesestesting. The results indicate that horizontal cooperation, access toinfrastructure, and access to skill have a positive impact on productivity,while horizontal cooperation and R&D cooperation have a positive impact oninnovation. Finally, firm innovation is proven to positively influence firmproductivity."

"FinFET (Fin Field-EffectTransistor) technology has recently seen a major increase in adoptionfor use in integrated circuits because of its high immunity to short channeleffects and its further ability to scaledown. Previously, a major research contribution was made to reduce the leakage current in theconventional bulk devices. So many different alternatives like bulk isolation and oxide isolation are all having some pros andcons. Here in this paper, we present a novel pile gate FinFET structure toreduce the leakage current, as compared with Bulk FinFET without using any pstop implant orisolation oxide as in theSilicon-on-Insulator (SOI). The major advantage of this type ofstructure is that there is no need of high substrate doping, a 100% reduction in therandom dopant fluctuation (RDF) and an increase in the ION/IOFFvalue. It can be very useful to improve the drain-induced barrier lowering (DIBL) at smallertechnological nodes. All the work is supported by 3D TCAD simulations, using Cogenda TCAD."

"The growth and crystallization processes of the Cu2ZnSnS4 (CZTS) phase typically rely on high-temperature sulfurization, which involves a harmful chalcogen-containing atmosphere. Together with the use of high-toxicity solvents, these processes could hinder the widespread adoption of this technology in the mass production of CZTS semiconductors for solar cell application. Thus, we studied the formation of CZTS films from ethanol-based precursors without the sulfurization step, fully employing the non-toxic solvent and avoiding the environmentally harmful sulfur-containing atmosphere. The certain addition of 2-mercaptopropionic acid led to the formation of a clear and stable sulfur-containing precursor. The precursors were successfully deposited onto soda lime glass by employing spin coater. CZTS crystallinity in the identified XRD patterns was vanishingly small in the case of eliminating the sulfurization process. Moreover, the carbon concentration and grain size of the resulting films were controlled by changing the time period of drying treatment during film fabrication. A drying time of 120 minutes, which demonstrated a CZTS grain size of ± 1 µm with a direct optical energy gap around 1.4 eV, was confirmed as the ideal condition. These results may provide a useful route toward environment-friendly strategies for the production of a CZTS semiconductor that is compatible with the absorber application in thin-film solar cells."