Sistem Informasi Geografis Pencarian Lokasi Agen Bus dan Travel Terdekat di Kota Semarang Berbasis Mobile dengan Metode Dijkstra

Nowadays, the mobility of people who travel to a place through road transportation is increasing, either private vehicle or public transportation services. By the high intensity of use the road transportation, especially the road transportation service in Semarang, in this cases are bus and travel, it makes the transportation service users often confused in determining transportation agency to be used, especially if user is in hurry. Therefore, transportation user need a mobile application that can provide bus or travel transportation agency locator services which nearby user location and provide destination route which is expected. The Bus and Travel agency – Based Applications Mobile Locator Using Dijkstra Method is the ultimate solution in the search of bus and travel agency in Semarang. The purpose of development this application is developing a search guidance system of bus and travel agency location which nearby user location that can provide an efficient route and save the time. The Bus and Travel agency – Based Applications Mobile Locator is implemented using ionic framework that runs on Android. Sqlite as the media storage of this, allows user to perform agency data management. In Addition, it is supported by the relevance of agency data which is obtained from Department of Transportation, Communication, and Information Central of Java and transportation magazine site. The use of Google Maps API supports search location using Dijkstra Method in search of bus and travel agency, that expected to facilitate the users find travel or bus agency as expected, and its information that\u27s already available

Effect of cutting speed on bio-corrosion of AISI 316L stainless steel

Stainless steel of AISI 316L type (SS316L) has been widely used as metallic biomedical implants material because of it offers good characteristics, including high mechanical properties and biocompatibility, and relatively low cost. However, its machinability an issue, with relation between cutting parameters and surface roughness is of interest to be considered. Related to this, its corrosion behavior related to cutting parameters also needs to be taken into consideration due to its application in implants. This study investigates the biocorrosion behavior of AISI 316L stainless steel which was machined by face milling at different cutting speeds. The cutting speeds were 100, 300 and 500 m/min while feed rate and depth of cut was kept constant. Initial assessment was done on the surface roughness of the face milled samples, with initial hypothesis that the surface roughness should be constant for all cutting speeds, with Ra to be within 0.8 - 1.2 μm. Biocorrosion test was then performed on the samples by Potentiodynamic Polarization Test under a simulated body fluid (SBF) electrolyte. It was found that although similar surface roughness is expected, the cutting speed affected the surface roughness in which the surface roughness tended to be inversely proportional to the cutting speed. Samples machined at the highest cutting speed was observed to have smooth surface with less defects, such as pits and grooves, compared to samples machined at lower cutting speeds. Related to this, the corrosion behavior of the AISI 316L stainless steel was also affected by the cutting speed during its face milling where the corrosion rate is inversely proportional to the cutting speed

Eco Splash-tank, Penyiram Pupuk Cair Dengan Sumber Solar Cell Sebagai Solusi Pemupukan Tanaman Melon

The process of exhausting long melon cultivation is one of the rarity factor farmers grow the The long and exhausting process in melon cultivation is one of factor the farmer rarity to grow up the fruit. The liquid fertilization is done once per 2/3 days. And the spraying can reach up to 23 time until the harvesting. Not maximum liquid fertilization will take longer time and more draining. Thats way, it needs a technology which can solve both these problems in one tool. This tool is called eco splash tank. This tank can also used in remote area without electricity because it is equipped by solar panels for energy source. the one wheel using for design makes the eco splash tank has capacity 30 L and strong. The result for a single full charge can be turned on and pump for 8 hrs. and the charging time for solar panels to accu until full is 9,5 hrs. in a pilot watering can be done up to 30 plants/minute and spray up to 27 plants/minute. It increases from 20 plants/minute(watering) and 17 plants/minute (spraying). In addition the functional benefits are felt by farmers. Because they don\u27t need to hold, pump, and by the fuel. furthermore the design of eco splash tank will be developped for agricultural crops and then RAMP Technopreneurship, patent, and a list of 107 Innovation

Characteristics of Ammonia Adsorption on Various Sizes of Calcium Carbonate Microparticles from Chicken Eggshell Waste

The purpose of this study was to synthesize carbon biochar microparticles from pomegranate peel waste for ammonia adsorption. Experiments were done by carbonization of pomegranate peel waste. The carbonized materials were then milled and sieved to get carbon biochar microparticles with a specific size (500, 1000, and 2000 μm). The particles were then characterized using a microscope and infrared spectroscopy (FTIR) to identify particle morphology and functional groups, respectively. The prepared particles were then used for the ammonia adsorption process, tested, and compared with ten isotherm models (such as Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Jovanovic, Halseys, Harkin-Jura, Flory-Huggins, Fowler-Guggenheim, and Hill-Deboer) to identify the adsorption mechanism. The pseudo-second-order kinetic model was suggested for describing the adsorption process that occurs to form a complex multilayer layer between the adsorbent and the adsorbate. This result is supported by the investigation of the adsorption isotherm model which found that all particle sizes have a pattern where a multilayer layer is formed due to the distribution of pores. Layer formation during the adsorption process involves physisorption and chemisorption with spontaneous and endothermic systems. Ukuran partikel mengkonfirmasi adanya perbedaan kemampuan yang ditandai dengan nilai kapasitas adsorpsi. The particle size confirms the difference in ability as indicated by the adsorption capacity value. The smaller the particle size, the greater the maximum capacity because it has a large surface area. On the other hand, the smaller the particle size, the greater the maximum capacity because it has a large surface area. This study shows that the use of eggshell waste has the potential. This study shows that the use of eggshell waste has the potential to be used as an adsorbent and supports the Sustainable Development Goals (SDGs) program

Chemical Reaction Mechanism from Pyrolysis Degradation of Polystyrene Styrofoam Plastic Microparticles based on FTIR and GC-MS Completed with Bibliometric Literature Review to Support Sustainable Development Goals (SDGs)

The purpose of this study was to determine the chemical compound content of polystyrene-styrofoam microparticles after the pyrolysis process, and their pyrolysis chemical reaction mechanism, with a bibliometric literature review to support Sustainable Development Goals (SDGs). The analysis was done using Fourier transform infrared (FTIR) and gas chromatography-mass spectroscopy (GC-MS). The pyrolysis method was carried out by decomposing 30 g of polystyrene particles (sizes of 3000 µm) for 105 min at a temperature in the range of 120–190 °C in the absence of air. The process was done inside the batch reactor (length x width x height = 44.5 cm x 35.5 cm x 25 cm) equipped with an outlet connected to three condensers (24 °C). The condensers were set in series, in which condenser 1 was directly connected to the reactor and connector 2 connected condensers 1 and 3. The pyrolysis results in the first condenser was a two-phase liquid with a brownish-yellow liquid in the top layer and a colorless and pungent-smelling liquid in the bottom layer. In the second and third condensers, a colorless and pungent liquid was obtained. The results of the FTIR showed that different chemical compositions were detected in the samples. The first, second, and third condensers contained aromatic C=C bonds. The second and third condensers have the same functional groups, namely -CH3 and hydrogen bonds in H2O, as well as aromatic functional groups with C-H bending alkenes, which are also possessed by the FTIR raw materials. Results analyzed by GC-MS showed that the second and third condensers contained styrene, toluene, methyl acetate, benzyl cyclopropane, and other styrene derivatives. The results analyzed by GC-MS showed a mixture of compounds with oxygen and nitrogen, as found in 2-propanone and benzene methanamina compounds. This pyrolysis process showed that a degradation reaction occurs, in which polystyrene is degraded into small fragments such as styrene and other derivatives such as benzene, toluene, and ethyl benzene. However, the pyrolysis was incomplete as oxygen and nitrogen were present. This research had a helpful impact on providing ideas and information about the pyrolysis process. This study also gives ideas to be applied to the pyrolysis process in areas that are difficult to reach with traditional waste treatment infrastructure. This study also aims to support current issues in the Sustainable Development Goals (SDGs)

Pressure-Induced Magnetic Quantum Phase Transition in Gapped Spin System KCuCl3

Magnetization and neutron elastic scattering measurements under a hydrostatic pressure were performed on KCuCl3, which is a three-dimensionally coupled spin dimer system with a gapped ground state. It was found that an intradimer interaction decreases with increasing pressure, while the sum of interdimer interactions increases. This leads to the shrinkage of spin gap. A quantum phase transition from a gapped state to an antiferromagnetic state occurs at Pc ? 8.2 kbar. For P > P c, magnetic Bragg reflections were observed at reciprocal lattice points equivalent to those for the lowest magnetic excitation at zero pressure. This confirms that the spin gap decreases and closes under applied pressure.Comment: 7 pages, 10 figures, submitted to J. Phys. Soc. Jp

Field-Induced Magnetic Ordering in the Quantum Spin System KCuCl3_3

KCuCl$_3$ is a three-dimensional coupled spin-dimer system and has a singlet ground state with an excitation gap ${\Delta}/k_{\rm B}=31$ K. High-field magnetization measurements for KCuCl$_3$ have been performed in static magnetic fields of up to 30 T and in pulsed magnetic fields of up to 60 T. The entire magnetization curve including the saturation region was obtained at $T=1.3$ K. From the analysis of the magnetization curve, it was found that the exchange parameters determined from the dispersion relations of the magnetic excitations should be reduced, which suggests the importance of the renormalization effect in the magnetic excitations. The field-induced magnetic ordering accompanied by the cusplike minimum of the magnetization was observed as in the isomorphous compound TlCuCl$_3$. The phase boundary was almost independent of the field direction, and is represented by the power law. These results are consistent with the magnon Bose-Einstein condensation picture for field-induced magnetic ordering.Comment: 9 pages, 7 figures, 9 eps files, revtex styl

XANAP: A real-world, prospective, observational study of patients treated with rivaroxaban for stroke prevention in atrial fibrillation in Asia.

Background: ROCKET AF and its East Asian subanalysis demonstrated that rivaroxaban was non-inferior to warfarin for stroke/systemic embolism (SE) prevention in patients with non-valvular atrial fibrillation (NVAF), with a favorable benefit-risk profile. XANAP investigated the safety and effectiveness of rivaroxaban in routine care in Asia-Pacific. Methods: XANAP was a prospective, real-world, observational study in patients with NVAF newly starting rivaroxaban. Patients were followed at ~3-month intervals for 1 year, or for ≥30 days after permanent discontinuation. Primary outcomes were major bleeding events, adverse events (AEs), serious AEs and all-cause mortality; secondary outcomes included stroke/SE. Major outcomes were adjudicated centrally. Results: XANAP enrolled 2273 patients from 10 countries: mean age was 70.5 years and 58.1% were male. 49.8% of patients received rivaroxaban 20 mg once daily (od), 43.8% 15 mg od and 5.9% 10 mg od. Mean treatment duration was 296 days, and 72.8% of patients had received prior anticoagulation therapy. Co-morbidities included heart failure (20.1%), hypertension (73.6%), diabetes mellitus (26.6%), prior stroke/non-central nervous system SE/transient ischemic attack (32.8%) and myocardial infarction (3.8%). Mean CHADS2, CHA2DS2-VASc and HAS-BLED scores were 2.3, 3.7 and 2.1, respectively. The rates (events/100 patient-years [95% confidence interval]) of treatment-emergent major bleeding, stroke and all-cause mortality were 1.5 (1.0-2.1), 1.7 (1.2-2.5) and 2.0 (1.4-2.7), respectively. Persistence was 66.2% at the study end. Conclusions: The real-world XANAP study demonstrated low rates of stroke and bleeding in rivaroxaban-treated patients with NVAF from Asia-Pacific. The results were consistent with the real-world XANTUS study and ROCKET AF

ESR study on the excited state energy spectrum of SrCu2_2(BO3_3)2_2 -a central role of multiple-triplet bound states

The excited state energy spectrum of a two-dimensional dimer system SrCu$_2$(BO$_3$)$_2$ has been investigated by high field ESR. Various types of multiple-triplet bound states-excited singlet, triplet and quintet states are identified, besides two non-degenerated one-triplet excitations. Extremely strong intensity is found for these higher order bound states, which is an important consequence of the strong suppression of the one-triplet process due to the orthogonality of dimers. A new bound singlet state is found slightly below the energy gap of the one-triplet state, indicating the proximity to a quantum critical point. A band of two-triplet bound state splits into at least eight sharp and discrete levels, which indicates the contribution of distant neighbor interactions. A bound quintet state is observed, which is the direct evidence of two-triplet object made up of four $S=1/2$ spins. The energy of the lowest quintet becomes lower than that of the one-triplet excitation before the closing of the lowest spin gap. It indicates that the two-triplet bound state touches to the ground singlet state before the one-triplet state does. The present investigation exhibits an essential role of various multiple-triplet bound states in the magnetic excitation spectrum of SrCu$_2$(BO$_3$)$_2$.Comment: 12 pages, 12 figures, submitted to J. Phys. Soc. Jpn. minor change is mad