Journal of Science and Application Technology (JSAT - Institut Teknologi Sumatera)
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The Cocoa Commodity Diversification in Supporting Agrotourism Development in Pekon Suka Marga, West Lampung Regency, Lampung Province
No full textCocoa is Indonesia's leading plantation product because Indonesia's cocoa production is the third largest in the world. One of the cocoa center areas is Suka Marga village, Suoh sub-district, West Lampung district. Suka Marga Village is also included in the Bukit Barisan National Park which has a total area of 313,572.48 hectares. Meanwhile, the largest cocoa production in West Lampung Regency, precisely in Suka Marga Village, even now Suka Marga Village is designated as an Agrotourism area. The results of cocoa processing have not yet characterized the village's superior products because they are still not optimal in utilizing commodity products and the lack of knowledge of village communities in managing cocoa commodity products. The plans that have been scheduled and implemented have reflected the collaboration and openness between the village apparatus and the community which encourages the creation of development transparency, especially in developing the potential of cocoa commodities in supporting the development of agro-tourism with the icon of processed cocoa products as economic added value for regional development in Pekon Suka Marga
STUDI MODEL PENGARUH PERUBAHAN JUMLAH PENDUDUK TERHADAP PENGGUNAAN LAHAN DI KOTA METRO TAHUN 2010-2020
Get PDFEvery year, Metro City sees a rise in population, which has an impact on how the city uses its property. One of the cities in Lampung Province with a total area of 7315.40 hectares is Metro City. Given that this territory makes up only 0.22 percent of Lampung Province's total area, there is concern that Metro City may face issues as its population grows and its need for land increases while its supply does not.. By adopting a guided categorization approach to define the Metro City's land use area, the land use is divided into three categories: the use of developed land, the use of undeveloped land, and the use of water bodies. A supervised classification analysis was utilized to identify the land use in Metro City, and a straightforward linear regression analysis was employed to ascertain the connection between population and land use in Metro City. In the years 2010 to 2020, Metro City's population grew by 23,205, while in the same period, the amount of developed land in Metro City climbed by 429.72 hectares. The North Metro District, which has an area of 156.94 hectares, had the subdistricts that underwent the greatest changes in land use from undeveloped land use to the most extensive use of built up land, while the South Metro subdistrict, which has an area of only 48.53 hectares, underwent the fewest changes. If the population is compared to the use of undeveloped land, the relationship is inverse; for every rise in population, the use of undeveloped land will suffer a decrease. However, there will be an increase in the use of built-up land for every increase in population
PERKIRAAN JUMLAH PENDUDUK OPTIMAL DAMPAK ADANYA PERGURUAN TINGGI BARU DI KABUPATEN PEKALONGAN
Get PDFThe existence of the attraction zone in the form of infrastructure facilities and infrastructure supporting community activities is a special attraction for the community to build a residence in Pekalongan Regency. This triggered the population growth of Kajen District, which continued to peak; in the 2020–2022 range, there was an increase in the population of more than 75,000 people. The results of the analysis stated that the area of Pekalongan Regency which covers 83,615 ha, as much as 52% of the area is a cultivation area. The remaining 35% is a buffer area, and 14% of it is an area with a protected function. This article is intended to estimate the maximum population that can be accommodated in Pekalongan Regency due to the existence of a new university, so that it will not have a negative impact on the environment . Meanwhile, to estimate this, data analysis methods are used by utilizing tools in the form of GIS and land carrying capacity calculations based on the determination guidelines carriage capacity and capacity environment. In accordance with the analysis of the carrying capacity of residential land functions in Pekalongan Regency, it was found that it currently has a DDPm value of 16.96. This represents that Pekalongan Regency is still very capable of supporting population growth
INOVASI MEDIA TANAM ANGGREK DARI LIMBAH PELEPAH KELAPA SAWIT
Get PDFAnggrek merupakan salah satu tanaman hias dengan keanekaragaman yang tinggi, khususnya di Pulau Sumatera. Permintaan serta nilai komersial anggrek menjadikan budidaya anggrek semakin berkembang. Media tanam yang umumnya digunakan merupakan cacahan tanaman pakis, namun status pakis yang hampir punah menjadikan tanaman pakis menjadi salah satu tanaman yang perlu dilindungi. Limbah pelepah sawit dengan kandungan unsur hara yang beragam merupakan salah satu bahan potensial dalam pengembangan media tanam. Penelitian bertujuan untuk mengembangkan alternatif media tanam anggrek dari limbah pelepah sawit terfortifikasi dan menganalisis kelayakan ekonominya. Cacahan limbah pelepah sawit difortifikasi dengan pupuk serta direkatkan menggunakan getah damar kemudian dicetak dalam bentuk pellet. Hasil penelitian terbaik ditunjukkan pada pelet dengan rasio sawit/pakis sebesar 60%:40% dimana komponen N-P-K yang terekstrak berturut-turut sebesar 6,0; 4,4; dan 4,2 ppm/g pelet. Hasil uji tekan juga menunjukkan bahwa penambahan 60% serbuk pelepah sawit mampu memberikan kekuatan tekan tertinggi pada media pelet sehingga mampu memberikan penahanan nutrisi dan air tertinggi. Sementara itu, hasil analisis ekonomi menujukkan bahwa pabrik pelet media tanam layak didirikan, yang ditunjukkan oleh nilai Internal Rate of Return 16,47%; Pay Back Period 2,26 tahun, Break Even Point 58,86%; Return On Investment 44,26%; dan Net Present Value Rp 1.236.691.035,00
Detection of Salmonella sp. and Escherichia coli Contamination on Processed Fish Meat
Get PDFFish is a processed food ingredient with very high water content, causing fish to become perishable due to the growth of bacteria in fish. One of the foods made from processed fish is pempek. Therefore, carrying out excellent handling and processing of these processed food ingredients is necessary. This study aims to detect the presence of Salmonella sp bacteria with SSA (Salmonella Shigella Agar) media and E-coli with EMBA (Eosin Methylene Blue Agar) media in processed food derived from ground fish, namely pempek. Three samples were taken from several Palembang city snacks. The method used is a prediction test by streaking samples on selective media SSA and EMBA scratching. The results showed that all food samples tested to detect the presence of Salmonella sp. using SSA media showed positive results. The detection test results for the contamination of E-coli using EMBA media on the food samples also showed that three samples of pempek made from flour and processed ground fish meat positively contained E-coli bacteria
Efficiency and Accuracy in Quadratic Curve Fitting: A Comparative Analysis of Optimization Techniques: A Comparative Analysis of Optimization Techniques
Get PDFIn this paper, we investigate an optimization methods might be applied for solving curve fitting by making use of a quadratic model. To discover the ideal parameters for the quadratic model, synthetic experimental data is generated, and then two unique optimization approaches, namely differential evolution and the Nelder-Mead algorithm, are applied to the problem in order to find the optimal values for those parameters. The mean squared error as well as the correlation coefficient are both metrics that are incorporated into the objective function. When the results of these algorithms are compared, trade-offs between the rate of convergence and the quality of the fit are revealed. This work sheds light on the necessity of selecting proper optimization algorithms for specific circumstances and provides insights into the balance that must be struck between accurate curve fitting and efficient use of computational resources in the process of curve fitting
FORMULATION AND EVALUATION OF EAU DE PARFUME (EDP) FLORAL AROMA CHARACTERISTICS
Get PDFCurrently, perfumes have emerged as highly sought-after cosmetic products in the Indonesian consumer market, aligning with the demands of daily life for enhanced self-assurance. Various types of perfume are categorized based on the ratio of fragrant oil content to solvent. Presently, the prevailing perfumes available in the market predominantly belong to the category with low concentrations of fragrant oils. The principal objective of this research is to formulate a product recipe for Eau de Perfume (EDP) with sweet and floral characteristics. The methodology employed in this study is experimental and consists of two phases: perfume formulation, evaluation, and final product development. The evaluation conducted in this research encompasses organoleptic and physical assessment, aroma longevity testing, spot testing, hedonic evaluation, and sensory testing. Based on the data collected from the research results, it can be concluded that the perfumes with longer aroma longevity are formulas F1 and F2. The average area of EDP spray dispersion is 74,48 mm. The most preferred hedonic test result was obtained from formula F2. Organoleptic test data for all formulas showed a clear and particle-free, the colorless solution observed after one month of storage. The solution’s viscosity increased during the fourth week due to the partial evaporation of the solvent. Sensory analysis results revealed that the aroma of all three formulas was characterized as sweet with floral undertones
Kajian Efektivitas Lajur Khusus Sepeda di Jalan L.L.R.E. Martadinata, Kota Bandung
Get PDFThe pandemic has led to an increase in the use of bicycles as a means of transportation that is cheap, environmentally friendly, and has a positive impact on the health of riders. The increase in bicycle users must be in accordance with the availability of adequate facilities and infrastructure to create comfortable and safe cycling activities. This research was conducted to analyze the level of effectiveness of bicycle lanes on L.L.R.E. Martadinata Street, Bandung City. The method used is descriptive, with a quanitative approach. Sampling uses a purposive sampling method for cyclists. The research object was analyzed using observation, questionnaires, and the BLOS (Bicycle Level of Service) method. The results of the BLOS analysis based on the volume factor, speed factor, pavement condition factor, and road cross-sectional factor on the observed bicycle lanes indicate that the service level of bicycle lanes on L.L.R.E. Martadinata Street, Bandung City has a D grade, both on weekdays and weekends. This means that the bicycle lanes are considered ineffective for cyclists from an environmental point of view but is acceptable for experienced cyclists
PERSPEKTIF ANAK TERHADAP RUANG (RUANG BERMAIN DI DESA FAJAR BARU KECAMATAN JATI AGUNG)
Get PDFEvery human being has rights, including children. Children's rights are clearly regulated in Law no. 35 of 2014, and internationally it is also included in the internationally recognized Convention on the Rights of the Child. One form of children's rights is the right to have an opinion and the right to their space to be creative and express themselves freely. Children's rights to space tend to be considered to have been fulfilled from the perspective of adult humans without looking directly from the children's perspective. This tendency gives rise to problems where children do not have the space they want based on their rights. This research is aimed at getting children's perspectives directly on space, to be able to see whether children's rights to their space have been fulfilled from the children's perspective. This research was conducted using a qualitative research methodology and through a naturalistic approach. The analysis used in this research is empirical induction and intentional induction analysis. From this research, the concept of the formation of children's perspectives on space was obtained, namely: Children's perspective on space is influenced by the availability of space for children, children's social interactions and games that children like which determine their space
Optimalisasi Sistem Angkutan Sampah di Kelurahan Pulau Setokok dengan Pemanfaatan Sistem Informasi Geografis (SIG)
Get PDFThe increasing population in Pulau Setokok Village has led to an increase in the waste generation which is not supported by the availability of representative TPS. In addition, the weak waste management system also makes this issue a major problem in the area. One of the important aspects in waste management on Setokok Island is the waste transportation system. The purpose of this study was to determine the location of alternative TPS in Pulau Setokok Village based on SNI No.19-3241-1994, analyze the suitability of the existing TPS in Pulau Setokok Village based on the SNI and optimize the waste transportation system from the existing TPS in Pulau Setokok Village to the nearest TPA with apply Network Analysis GIS. The determination of the recommended location for the TPA in the Pulau Setokok Village in this study was technically determined from the highest score of the feasible zone at the allowance stage, where it was found that the highest score in the allowance stage was 282, covering an area of 2.1 Ha, which is relatively in the middle of Setokok Island which is crossed by the Trans Barelang road. The location of the existing TPS on Pulau Setokok is not in the recommended TPA location based on SNI No.19-3241-1994. The length of time for transporting waste using a Dump Truck is 108.6 minutes which is faster than an Arm Roll Truck (173 minutes) for round-trip waste transportation from TPA Punggur – TPA Recommendation of Pulau Setokok – TPA Punggur on the shortest route of 2 times 36.2 km. the use of Arm Roll Truck fuel is more efficient, which is Rp 93,637.33 for 1 trip compared to the Dump Truck (Rp 117,046.67), but the Arm Roll Truck transports less waste than the Dump Truck because of its smaller capacity, which is 7.2 m3 compared to the Dump Trucks of 12 m3