bluuebunny/crossref_metadata_2025_split huggingface dataset:
Microseismic Wave Measurements to Detect Landslides in Bengkulu Shore with Attenuation Coefficient and Shear Strain Indicator
Authors: Farid Muhammad 
Published: September 2016

<p>It has been detected that the condition of landslides that occurred in Bengkulu Shore can change the position of the shoreline. This research aimed to: (1) calculate of shear strain (γ) and attenuation coefficient (ά) value based on microseismic data in coastal areas that experienced landslides; (2) determine the correlation between levels of landslides with shear strain and attenuation coefficient value (3) determine the correlation between the shear strain and attenuation coefficient value. Microseismic data were processed and analyzed quantitatively using the Horizontal to Vertical Spectral Ratio method (HVSR) to obtain the ground vibrations resonance frequency (<em>f<sub>o</sub></em>) and amplification factor (<em>A</em>). Shear strain value was calculated from the of <em>f<sub>o</sub></em>, <em>A</em> and Peak Ground Acceleration (<em>α<sub>max</sub></em>) value. Peak Ground Acceleration value was calculated based on 100-year period of recorded earthquake data. Attenuation coefficient was calculated based on the equation (2). The results of study showed that the value of shear strain in the coastal areas varied from 1.0 × 10<sup>-4</sup> to 3.6 × 10<sup>-3</sup>, in accordance with the conditions of landslides. The attenuation coefficient value varied from 0.005 to 0.020. Level of landslides that occurred varied from moderate, to very severe. There was a tendency that the more severe the landslide level, the greater the shear strain and attenuation coefficient value were.</p>
The role of SiC on the Desorption Temperature of Mg-based Hydrogen Storage Materials Prepared by Intensive Milling Method
Authors: Jalil Zulkarnain 
Published: September 2016

<p>Magnesium, theoretically, have the ability to absorb hydrogen in large quantities (~ 7.6 wt%). However, the kinetic reaction is very slow, thereby hindering the application of magnesium for hydrogen storage material. In this paper, we reported a series of preliminary studies on magnesium inserting with silicon carbide (2 wt%)obtain by mechanical milling method. The vibratory mill type apparatus was used for 180 hours. As the results, structural characterization by XRD showed that the crystallite size after milling for 180 hours decreased around tens nanometer. It was also found that the desorption temperature for the sample after 180 milling inform us that the material decomposed at 330°C. It can concluded that Mg catalyzed with 2 wt% of silicon carbide (SiC) can be prepared by vibratory ball milling. </p>
Effect of Methylammonium Iodide (CH3NH3PbI3) Perovskite Concentration on the Performance of Perovskite Solar Cell
Authors: AL-she’irey Altaf Yahya 
Published: September 2016

<p>The effect of Methylammonium Iodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) perovskites (MIP) concentration on the performance of perovskites sensitized solar cell (PSC) was studied. Three MIP concentrations, namely 0.2, 0.4, and 1.0 M were prepared. In this study PSC with a sandwich structure of ITO/TiO<sub>2</sub>/ MIP /electrolyte/ Pt film was fabricated for this purpose. It was found that power conversion efficiency (PCE) increased with the increasing the concentration of MIP, from 0.01 to 0.21 % as the concentration increase from 0.2 to 1.0 M. Photoluminescence (PL) study showed that the increase of the MIP concentration decrease therecombination of carrier in the device. Electrochemical impedance spectroscopy (EIS) analysis also shows that with the increased of MIP concentration results in the decreased of the R<sub>ct </sub>due to the improvement of the carrier transport in the devices. </p>
Transmission Electron Microscopy Study of Magnetic Domain of Cobalt-Samarium Thin Films Fabricated Using DC Magnetron Sputtering Technique
Authors: Amiruddin Erwin 
Published: September 2016

<p>Alloys of cobalt samarium (Co-Sm) in the form of thin films were fabricated using dc magnetron sputtering technique. The films were fabricated as a function of samarium concentration ranging from 0 to 28 at.% in order to investigate the relationship between microstructure, coercivity and magnetic domain structure. Magnetic domain structures in the films have been studied by Lorentz microscopy using transmission electron microscopy (TEM). In this technique, the TEM was operated in the defocused mode. The results show that the magnetic image of Co<sub>90</sub>Sm<sub>10 </sub>film has fairly coarse structure with magnetization ripple and the domains ranging over 200-300 nm. The domain size is much larger than the grain size of Co<sub>90</sub>Sm<sub>10</sub> film. The “multiparticle” or interaction domains suggested that there is strong exchange coupling between the magnetization of the neighbouring grains inside each of them. The hysteresis loop for this film shows a small coercivity with high magnetization value and high loop squareness, indicating a greater proportion of magnetic material. </p>
Preparation and Characterisation of PVdF-LiBOB-Based Solid Polymer Electrolyte
Authors: Rina Ratri Christin 
Published: September 2016

<p>Electrolyte plays a key role in lithium-ion battery system. Safety and reliability factor was the main background of the development of solid polymer electrolyte as a substitute the conventional electrolyte in liquid form. Preparation and characterisation of a polymer electrolyte system based on lithium bis(oxalato) borate or LiBOB salt and PVdF as the host matrix has been performed. LiBOB salt and PVdF polymer were dissolved in DMAC solvent followed by solid polymer electrolyte forming by means of doctor blade method. The membranes obtained were characterised by FT-IR, XRD, and EIS. It was shown that the electrolyte exhibited higher room ionic conductivity with the increase of salt concentration, with highest conductivity value of 1.22 × 10<sup>-6</sup> Scm<sup>-1</sup> for 70% LiBOB concentration.</p><p><strong> </strong></p>
Effect of Co-Ti Substitution on Magnetic Properties of Nanocrystalline BaFe12O19
Authors: Handoko Erfan 
Published: September 2016

<p>The synthesis of nanocrystalline BaFe<sub>12-2x</sub>Co<sub>x</sub>Ti<sub>x</sub>O<sub>19</sub> with variations of x (x = 0, 1, 2, and 3) have been investigated. The formation of polycrystalline samples that the cationic of Co<sup>2+</sup> and Ti<sup>4+</sup> in Co-Ti substituted Fe in BaFe<sub>12</sub>O<sub>19</sub> ferrites structure were prepared by solid state reaction method. The crystal structure, microstructure, and magnetic properties were characterized using powder X-ray diﬀraction, scanning electron microscope (SEM) and permagraph meter, respectively. The results show that the nanocrystalline BaFe<sub>12-2x</sub>Co<sub>x</sub>Ti<sub>x</sub>O<sub>19</sub> has single phase with polycrystalline structure, the grain size decrease by doping, the coercivity (Hc) and saturation magnetization (Ms) decrease with increasing Co-Ti substitutions. </p>
Effect of Growth Temperature on ZnO Nanorod Properties and Dye Sensitized Solar Cell Performance
Authors: Ali Umar Marjoni Imamora 
Published: September 2016

<p>Nanostructure of semiconductor materials zinc oxide (ZnO) is widely used in fabrication of solar cell devices. The performance of such devices is strongly depending on the nanostructures of the thin films used. In this paper reports the effect of growth temperature during synthesis of one-dimensional (1-D) anatase ZnO nanorod arrays through hydrothermal process facing their structure, morphology, and optical properties. The ZnO nanorod was first synthesized use the solution concentration and time fixed at 0.04M and 1 hour. The growth temperature were varied from 70, 80, 90 and 100 <sup>°</sup>C. The effect of growth temperature on the structural, morphology, and optical absorption of ZnO nanorod were studied by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and UV–vis spectroscopy. The regularity, diameters, heights, and surface densities of the ZnO nanorods were increased with the growth temperature.The optimum results of FESEM characterizations showed that the grown ZnO nanorods have diameters of 64.14 ± 8.3 nm, heights of 363.72 ± 34 nm and surface densities of 182 numbers/µm<sup>2</sup> which was obtained at temperature of 90 ˚C. The optimum ZnO nanorod film was utilized as photo anode in dye sensitized solar cells. The DSSC yielded Jsc of 0.86 mA/cm<sup>2</sup>, Voc of 0.49 V, and FF of 38 %, resulting in PCE of 0.16 %.</p><p> </p>
Cyclic Voltammometry of Binderless Activated Carbon Monoliths based supercapacitor from Mixtures of Pre-carbonized of Fibers of Empty Fruit Bunches and Green Petroleum Coke
Authors: Awitdrus Awitdrus 
Published: September 2016

<p>Binderless activated carbon monoliths (BACMs) prepared from mixtured of pre-carbonized of fibers of oil palm empty fruit bunches (EFB) and green petroleum coke were used for preparing the carbon based supercapacitor cells. The symmetrical supercapacitor cells were fabricated by using two BACMs electrode prepared for each selected holding time of activation and various compression pressure. The electrochemical behavior of supercapacitor cells were measured at room temperature by using cyclic voltammetry (CV) technique. The maximum specific capacitance (C<sub>sp</sub>) of the cells values were 35.9 and 82.5 F/g for holding time of activation of 1.5 and 2 h, respectively, at the compression pressure of 7.5 metric tons. </p>
Effect of Input Amplitude to Power Amplification in Various Orientation of Ring Resonator
Authors: Hairi Haryana Mohd 
Published: September 2016

<p>Photonic ring waveguide resonators have great potential applications in wavelength filtering, switching, modulation and multiplexing. The response of coupled ring resonators can be designed by using various coupling configurations. Particularly, ring resonators can be used as wavelength filter when the wavelength fits a whole multiple times in the circumference of the ring. In this paper, we investigate the effect of input amplitude to power amplification in four ring resonator configurations and vary the input amplitude on five different wavelengths. With OptiFDTD Photonics Simulation Software V8.0, the results show the intensity phenomenon of filtering in optical circuit.</p><p> </p>
The Effect Of Boric Acid On Corrosion Of Ss 304 As Pwr Pressurizer Material
Authors: Bahar Febrianto 
Published: September 2016

<p>The pressurizer is the component in the reactor coolant system which provides a means of controlling the system pressure. The pressurizer has a function to keep the operational pressure of reactor coolant system in set point condition. For controlling primary coolant system pressure, the pressurizer has pressurizer spray, heater, safety relief valve and instrumentation to control level and pressurizer. The purpose of this study is to see the effect of boric acid, lithium hydroxide and temperature on SS 304 as PWR pressurizer material.The method that used in this research is to observe the corrosion rates of pressurizer material in several boric acid and lithium hydroxide concentration at several temperature conditions using Potentiostat. Tests were conducted in 28, 60, 80,and 100 °C in 2000, 2500, 3000 ppm boric acid and addition 2.0 and 2.5 ppm lithium hydroxide. The pressurizer material corrodes in solution containing boric acid solution. The corrosion rates increased if boric acid solution concentration and temperature also increased. The results showed that that corrosion rate for the material were very small and the highest corrosion rate occurred in 3000 ppm boric acid concentration at 80 °C ,that is 4.5913 x 10<sup>-1</sup> mpy.The corrosion rates increased until temperature 80 °C, but increasing the temperature from 80 °C to 100 °C decreased the corrosion rates from4.5913 x 10<sup>-1</sup> to 4.5264 x 10<sup>-1</sup>mpy. Lithium hidroxide addition in boric acid containing media generally decreased SS 304 corrosion rate as P W R pressurizer material.K.</p>
Strength Based Numerical Approach Constitutive Material Prediction Of Spot Welded Joints Of Steel
Authors: Budiarsa I Nyoman 
Published: September 2016

<p>The deformation of spot welded joints is challenging research problem due to the complex nature of the structure. One major problem is to characterize the materials properties. The elastic-plastic material parameters and the fracture parameters of materials can be readily determined when standard specimens are available, however, for a spot welded joint, standard testing is not applicable to characterize the heat affected zone (HAZ) and the weld nugget due to their complex structure and small size. This has opened up the possibility to characterize the material properties based a dual indenter method to inversely characterize the parameters of the constitutive material laws for the nugget, HAZ and the base metals. In a mixed numerical-experimental approach, the load-deformation data of the material is used as input data to a finite element (FE) model that simulate the geometry and boundary conditions of the experiment. With indentation tests, the local plastic properties can be calculated by solving the inverse problem via finite element analysis by incrementally varying properties in 3D modeling to find a similar simulated load–displacement curve as compared with experimental one. The approach will then be used to test different welding zones and the material parameters thus predicted used to simulate the deformation of spot welded joints under complex loading conditions including tensile shear and drop weight impact tests. The evaluation based on numerical experimental data showed similar accuracy to the continuous indentation curve approach.</p>
Proposed Testing Quality Of Silicon Nitride In Nuclear Application By Ceramography
Authors: Tirta Nindhia Tjokorda Gde 
Published: September 2016

<p class="NoSpacing1">The components in nuclear application should ensure the safety during operation. Testing and investigation should be performed to ensure the quality of every component. This report propose ceramography technique for testing of silicon nitride in nuclear application. Ceramic material is known brittle therefore not possible to hold by using vice as usual used in metal during cutting. Since ceramic is very hard, the cost for cutting, grinding and polishing required high cost due to utilization of diamond. Special techniques should be employed during observation bay using optical microscope because ceramic are not reflect the light. Ceramic is mainly known since their high chemical resistance therefore difficult to etching by using chemical solution. A unique respond of ceramic due to indentation make the indentation technique become part of ceramography. Indentation process requires a flat sample in order valid result to be obtained, and this can be achieved by special technique during grinding and polishing. This research introduce of ceramography process that was successfully done on Si<sub>3</sub>N<sub>4</sub>, from preparation of the specimen, microstructure observation, the respond on indentation, strength, and porosity investigation<strong> </strong> The results showed that the fluorescent dye penetrant under ultra violet source of light the defect in Si<sub>3</sub>N<sub>4</sub> was easily observed therefore is suitable to be proposed as a technique for testing the quality of silicon nitride component in nuclear application.<a href="file:///C:/Users/Mohamad%20Mostafa/Desktop/Knowledge%20E/In%20Press%20Conferences/ICoNETS-2015/Source-Manuscripts/13_I12-Tjokorda_p80-86.docx#_msocom_1">[P1]</a> </p><div><hr align="left" size="1" width="33%" /><div><div><p> <a href="file:///C:/Users/Mohamad%20Mostafa/Desktop/Knowledge%20E/In%20Press%20Conferences/ICoNETS-2015/Source-Manuscripts/13_I12-Tjokorda_p80-86.docx#_msoanchor_1">[P1]</a></p><p>The revised sentence and added</p></div></div></div>
Evaluation Of Radionuclides Release Estimation Of Power Reactor Using Scdap / Relap
Authors: Pane Jupiter Sitorus 
Published: September 2016

<p>Incident of radiation release to the environment is important event in reactor safety analysis. Numerous studies have been conducted using various computer codes, including SCDAP/RELAP, to calculate radionuclide releases into the reactor coolant during severe accident. This paper contains description of calculation results of radionuclide release from reactor core to primary coolant system in a1000 MW PWR reactor with the aim to study behavior of radionuclide releases during severe accident. The calculations using SCDAP/RELAP was done by assuming that there has been a station black out which ends up with some vapor released into the containment. As a result, the water level in core was reduced up to a level where the core is no longer covered by water. The uncovered core heats up to certain temperature where the oxidation of the cladding started to occur. Afterwards the oxidation generated heat made fuel melting temperature reached and as consequences the release of radionuclide to the primary coolant. The calculations show that in parallel with the increasing of fuel temperature, the radionuclide releases into the gap through diffusion started at time of 2000seconds after initial simulation but with a neglected concentration. Subsequently at the time of 29200seconds, the temperature reached more than 1000 K and the oxidation of the Zr-cladding material occurred which accelerated the fuel temperature increase and as well as radionuclide release. At34000seconds, maximum temperature of core reached 2800 K and radionuclide release into the primary cooling system started. At this time, accumulated dissolve fission product reached amount of 74.5 kg, while the non-condensable radionuclide reached 122 kg. However, these value need to be investigated further.</p>
Analysis On The Change In Neutronic Parameters Due To Mispositioning Of Fuel In The Ap1000 Core
Authors: Susilo J. 
Published: September 2016

<pre><span>AP1000 on the first cycle operation uses three types of UO<sub>2</sub> fuel enrichments that are 2.35 w/o, 3.40 w/o and 4.50 w/o. To compensate excess reactivity, AP1000 uses an Integrated Fuel Burnable Absorber (IFBA) and a PYREX absorber as additional compensator to the boric solution in the moderator. IFBA is a burnable absorber made from ZrB<sub>2</sub> which is integrated into the UO<sub>2</sub> fuel. Human errors, such as fuel misposition, could happen when operators load fuel assemblies into the reactor core. For evaluating the design performance of AP1000, analysis on the change of neutronic parameters due to this fuel mispositioning need to be done. Analysis was performed on the reactor at hot zero power condition (HZP), beginning of cycle (BOC), and zero xenon</span> <span>condition with several cases of mispositioning between two adjacent fuels. Neutronic parameters, mainly the k-eff and power factor distribution will be derived from SRAC2006 computer code module of CITATION. One of the inputs required is fuel lattice macroscopic cross-section data, which are generated by PIJ module. These calculations performed condensation energy group of 107 into 10 groups with JENDL - 3.3 library cross section data. </span><span>From the analysis, it can be concluded th</span><span>at misposition of the fuel in the first cycle of AP1000 core will result in very small change to the neutronic parameters. This very small change can not reduce the performance of the core.</span></pre>
Analysis Of Doppler Reactivity Coefficient On The Typical Pwr-1000 Reactor With Mox Fuel
Authors: Madi Rokh 
Published: September 2016

<p>Doppler coefficient is defined as a relation between fuel temperature changes and reactivity changes in the nuclear reactor core. Doppler reactivity coefficient needs to be known because of its relation to the safety of reactor operation. This study is intended to determine the safety level of the typical PWR-1000 core by calculating the Doppler reactivity coefficient in the core with UO<sub>2</sub> and MOX fuels. The typical PWR-1000 core is similar to the PWR AP1000 core designed by Westinghouse but without Integrated Fuel Burnable Absorber (IFBA) and Pyrex. Inside the core, there are UO<sub>2</sub> fuel elements with 3.40 % and 4.45 % enrichment, and MOX fuel elements with 0.2 % enrichment. By its own way, the presence of Plutonium in the MOX fuel will contribute to the change in core reactivity. The calculation was conducted using MCNPX code with the ENDF/B- VII nuclear data. The reactivity change was investigated at various temperatures. The calculation results show that the core reactivity coefficient of both UO<sub>2</sub> and MOX fuel are negative, so that the reactor is operated safely.</p>
Enigma Kejahatan dalam Sekam Filsafat Ketuhanan
Authors: Gultom Andri Fransiskus 
Published: September 2016

Artikel ini membahas tentang problematika kejahatan dalam kaitannya dengan keberadaan Tuhan. Kejahatan yang kerap dihadapi manusia dalam hidup menjadi persoalan yang coba diruntut berdasar perspektif filsafat ketuhanan. Dalam artikel ini, adanya kejahatan yang terdapat di dalam sepanjang sejarah kehidupan manusia, menghadirkan pertanyaan mendasar tentang keberadaan Tuhan. Tuhan yang diyakini sebagai Yang Maha Baik dihadapkan dengan realita kejahatan dalam kontestasi ide filosofis. Terdapat empat tema pembahasan yang berawal dari pertanyaan-pertanyaan filosofis perihal relasi kejahatan dengan ketuhanan, yaitu: apa itu teodise? Apa itu kejahatan? Beranjak dari pertanyaan tersebut, penulis mendapati bahwa kejahatan merupakan suatu kenyataan yang disebut dengan enigma. Kenyataan enigmatik yang dihadapi manusia dalam kehidupan tersebut memposisikan manusia sebagai subjek yang rentan (vulnerable subject) tatkala berhadapan dengan kejahatan. This article discusses about the problematics of crime in relation to the existence of God. Crimes that are often faced by humans in life have been problems that try tracing based on existence of god perspective. In this article, the crimes contained in the history of human life, presents a fundamental question about the existence of God. God is believed to be the Most Good confronted with the reality of crime in the contestation of philosophical ideas. There are four discussion themes which start from the philosophical questions regarding the relationship with Divinity crime, namely: what is it theodicy? What is crime? Moving on from these questions, the authors found that the crime is a reality called the Enigma. The fact of the Enigmatic faced by humans in the life has been positioned that humans as a vulnerable subject whenthey are dealing with crime.
Dakwah Kultural Bayt al-Qur’an al-Akbar Ukiran Kayu Khas Melayu Palembang
Authors: Pahlevi Reza 
Published: September 2016

Penelitian ini berusaha mengungkap berbagai fenomena yang menggambarkan serangkaian kegiatan dakwah kultural Bayt al-Qur’an al-Akbar Ukiran Khas Melayu Palembang. Sehingga dapat diperoleh sejumlah informasi mengenai berbagai upaya penerapan program yang dimaksud. Penelitian ini dapat disimpulkan, pertama kontribusi Bayt al-Qur’an al-Akbar Ukiran Khas Melayu Palembang terhadap perkembangan metode dakwah kultural adalah dakwah melalui seni. Kedua, Bayt al-Qur’an al-Akbar Ukiran Khas Melayu Palembang sebagai tempat Wisata Religi yang sangat signifikan. This research tries to reveal the various phenomenon that describe a series of cultural propaganda activities Bayt al-Qur’an al-Akbar Ukiran Khas Melayu Palembang. In order to obtain some informations about the efforts of the implementation of the program in question. It can be concluded, the first contribution of Bayt al-Qur’an al-Akbar Ukiran Khas Melayu Palembang on the development of methods of cultural propaganda is propaganda through art. Second Bayt al-Qur’an al-Akbar Ukiran Khas Melayu Palembang as a very significant Religious Tourism.