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Penerapan Metode Runge-Kutta dan Iterasi Variasional dalam Simulasi Transmisi Tuberkulosis
Get PDFMatematika dapat diterapkan untuk menyelesaikan berbagai masalah dalam kehidupan sehari-hari. Salah satu masalah yang dapat diselesaikan dengan menerapkan matematika adalah tentang laju transmisi penyakit menular. Penelitian ini bertujuan untuk menyelesaikan sistem persamaan laju transmisi Tuberkulosis (TB) model epidemi Susceptible-Infected-Recovered (SIR) yang berbentuk sistem persamaan diferensial nonlinear. Metode yang digunakan untuk menyelesaikan sistem persamaan diferensial ini adalah metode Runge-Kutta orde empat (RK4) dan metode iterasi variasional (VIM) standar. Metode penelitian yang digunakan dalam penelitian ini adalah metode numerik yang dilengkapi praktik simulasi menggunakan MATLAB. Hasil penelitian adalah bahwa: pertama, metode RK4 menghasilkan solusi model SIR yang realistis untuk sebarang waktu; kedua, selisih antara solusi RK4 dan solusi VIM cukup kecil untuk nilai waktu yang cukup kecil; ketiga, waktu yang cukup besar mengakibatkan solusi VIM menjadi tidak realisti
DESAIN DIAGRAM PENGKABELAN UNTUK AUTOMATION SORTING LINE SYSTEM
Get PDFAbstrak -Automation Sorting Line system adalah mesin yang dapat mensortir kotak pada setiap baris. Dengan sensor barcode, mesin ini memungkinkan sensor mendeteksi dan mengaktifkan pendorong ketika barcode cocok dengan garis yang dituju. Mesin yang dibuat cukup rumit dan membutuhkan panel sebagai tempat komponen listrik dirangkai rapi, membutuhkan diagram pengkabelan yang baik dan benar untuk memfasilitasi pemeliharaan. Dalam hasil pengujian sebanyak 50 eksperimen motor servo untuk mendorong kotak yang akan masuk garis terpisah ada 4 kali kesalahan dan 46 berhasil. Dengan menggunakan waktu kerja servo selama 1 ms, 1,2 ms dan 1,5 ms. Dengan hasil yang memiliki kesalahan terkecil adalah 1,2 ms
DESAIN SISTEM TIKET ELEKTRONIK PADA TRANSPORTASI PUBLIK CERDAS
Get PDFAbstrak - Surabaya yang merupakan ibu kota provinsi Jawa Timur sudah memiliki beberapa transportasi umum, namun fasilitas yang kurang memadai serta sistem pembayaran yang tidak praktis membuat peminat transportasi umum di Surabaya rendah. Paper ini mengusulkan sistem ticketing yang dapat di terapkan pada transportasi umum Surabaya serta mengetahui kinerja sistem, baik dari sisi aplikasi pada On Board Unit maupun proses pengiriman informasi antara OBU (client) dan Control Center Room (server). Perancangan sistem ini terdiri dari 3 tahap, yang pertama yaitu perancangan sistem ticketing yang akan digunakan. Hal ini meliputi tarif , teknis transfer/transit beserta policy nya serta diskon berdasarkan kategori penumpang. Selanjutnya perancangan sistem pada OBU yang terdiri dari tiga fitur, yaitu fitur ticketing , fitur total pendapatan serta fitur registrasi. Tahap terakhir yaitu perancangan jaringan yang digunakan untuk proses pengiriman informasi antara OBU dan server
Inspection Scheduling Programs Analysis of Amine Reboiler Heat Exchanger Using Risk-Based Inspection API 581 Method
Get PDFIn the oil and gas industry, the purification and handling of oil and petroleum gas, the cycle of warmth transformation is expected to isolate the H2S and CO2 from natural gas with an amine. The cycle happens inside the amine reboiler which is a shell and tube heat exchanger type. Cycle liquid streaming in the Amine Reboiler are Lean Amine on the shell side (HEXSS) and Therminol-55 on the cylinder/tube side (HEXTS). With such synthetic arrangement, worked with high weight and temperature, makes the liquid into a destructive climate for Amine Reboiler. Along these lines, an exact review and planning program is needed to guarantee equipement’s life, guaranteeing the protected establishment and wellbeing of laborers. Thus, it is important to direct a danger assessment for shell and tube heat exchanger gear utilizing the Risk-Based Inspection technique which alludes to the API RP 581. The danger of Amine Reboiler is a mix of the Probability of Failure (PoF) and the Consequence of Failure (CoF). From the PoF and CoF acquired, the HEXSS hazard level on the danger lattice at the RBI date and RBI plan date are ordered as Low Risk and Medium Risk. While the danger level of HEXTS on danger network at RBI date and RBI plan date both are ordered as Medium-High Risk. At that point the prescribed date to do the assessment is January 1, 2020
Simulasi Jumlah Klaim Agregasi Berdistribusi Poisson Dengan Besar Klaim Berdistribusi Gamma dan Rayleigh
Get PDFA claim is a transfer of risk from the insured to the guarantor. Claims that occur individually are called individual claims, whereas collections of individual claims are called aggregation claims in a single period of vehicle insurance. Aggregation claims consist of a pattern of the number and amount (nominal value) of individual claims, so that the model of aggregation claims is formed from each distribution of the number and amount of claims. The distribution of claims is based on the probability density function and the cumulative density function. One method that can be used to obtain a claim aggregation model is to use convolution, which is by combining the distribution of the number of claims and the distribution of the amount of claims so that the expected value can be obtained to predict the value of pure premiums. In this paper, aggregation claim modeling will be carried out with the number of claims distributed Poisson and the amount of claims distributed Gamma. As comparison, we compare it with claim amount distributed Rayleigh. By using VaR (value at risk) and MSE (Mean Square Error) indicators, the results of the analysis show that the Rayleigh distribution is better used for distributing data that has extreme values
Tren Desain Furnitur Berbahan Limbah Kayu di Media Jual Beli Daring
Get PDFLimbah kayu merupakan jenis limbah yang berasal dari pohon atau hasil hutan alami ataupun produksi industri. Secara umum pepohonan memberikan dampak positif bagi berbagai kebutuhan manusia, karena secara spesifik batang kayu yang utuh hingga yang telah diolah memiliki nilai yang dapat terhitung dan tidak bisa terhitung bagi manusia. Selain itu, dalam perekonomian berbagai jenis kayu baik itu berukuran utuh maupun serbuk, berukuran besar maupun kecil. Semua jenis kayu tersebut dapat dimanfaatkan oleh manusia. Namun, saat ini di Indonesia khususnya dalam pengolahan berbagai bentuk limbah baik berukuran besar maupun kecil masih belum dimanfaatkan semaksimal mungkin, hal ini terjadi karena kurangnya kreativitas dan kepedulian masyarakat Indonesia dalam mengolah limbah tersebut. Dengan adanya permasalahan tersebut maka cara menanggulanginya adalah dengan memanfaatkan limbah kayu menjadi produk yang bernilai tambah dan dapat bermanfaat untuk lingkungan dan masyarakat. Dalam penelitian ini dilakukan dengan melakukan wawancara pengrajin dilanjutkan dengan kuisioner kepada masyarakat dan juga melakukan analisis pada furniture limbah yang paling banyak dibeli pada media daring seperti Bukalapak. Berdasarkan hasil penelitian ini didapati bahwa masyarakat akan lebih memilih untuk berbelanja secara langsung ke toko. Namun, karena adanya pandemic Covid-19 membuat masyarakat mau tidak mau membeli furnitur secara daring dengan beberapa pertimbangan, selain itu dalam pemilihan furnitur dari limbah kayu masyarakat memilih dari material kayu palet didasari karena kayu ini lebih bersih dari sisi warna dan juga mudah untuk ditata sesuai dengan interior yang ada dimana dengan penggunaan furnitur dari kayu palet ini akan membuat ruang terlihat pada penggayaan rustic apabila melalui proses pelapisan akhir yang cukup detail, namun tak menutup kemungkinan bahwa kayu palet akan lebih terekspos dan membuat ruangan menjadi lebih indah.Kata kunci: Limbah Kayu; Furnitur; Tren; Desain ABSTRACT Wood waste is a type of waste derived from trees or natural forest products or industrial production. In general, the trees have a positive impact on a variety of human needs, because specifically the stem of wood intact to the one that has been Dilah has the value of tangible and intangible for humans. In addition, in the economy of various types of wood both intact and powder, large and small. All types of wood can be utilized by humans. However, nowadays in Indonesia especially in the processing of various forms of waste both large and small is still not utilized to the fullest, this is due to lack of creativity and awareness of the people of Indonesia in processing the waste. With this problem, the way to mitigate it is to utilize wood waste into a value-added product and can be beneficial for the environment and society. In this research, the methods by conducting interviews the craftsmen continued with the questionnaire to the community and also conducted analysis to the most purchased waste furniture on online platforms such as Bukalapak. Based on the results of the study stated that the public would prefer to shop directly to the store. However, because of the pandemic Covid-19 make the community will not want to buy furniture online with some considerations, other than that in the selection of furniture from wood waste people choose from wood pallet material based on wood that is more clean than the side of the color and also easy to cultivate wooden pallets according to the existing interiors where the use of furniture from wood pallets will make the room visible on the natural styling when through a fairly detailed finishing process , but did not close the possibility that the wooden pallets will be made exposed and make the room more beautiful. Keyword: Wood Waste; Furniture; Trend; Desig
Estimation Gross Enrolment Rate of Higher Education in Bangka Belitung Island using Small Area Estimation
Get PDFQuality education up to the highest level, especially in developing countries is the goal of sustainable development. One of the statistical indicators used to measure the success of education development at the universities education is the Gross Enrollment Rate - Higher Education (APK-PT). However, Statistics Indonesia (BPS) as the data provider can only provide APK-PT data up to the provincial level. In fact, local governments at both the provincial and district levels need more detailed data to make policies for higher quality education. According to BPS, the APK-PT Indonesia in 2019 is 30.28. This means that only 30.28 percent of the population aged 19-23 years are actively pursuing higher education. Therefore, estimation using the small area estimation method is used to obtain APK-PT at the district level. The Province of Bangka Belitung Islands is a research locus because it has the lowest APK-PT in Indonesia in 2019. This research uses the National Socio-Economic Survey (SUSENAS) 2019 data and PODES 2018 data. The results show that the Small Area Estimation (SAE) approach is Empirical Best Linear Unavailable Predictors (EBLUP) type Fay-Harriot Model is suitable for estimating APK-PT of Bangka Belitung Islands Province at district level
Building Customer Citizenship Behavior from Relationship Quality and Perceived Value Perspective in Online Transportation Service
Get PDFRecently, Customer Citizenship behavior (CCB) become research focus in marketing. But, not many research focus on the antecedent of this variable from marketing behavior perspective. The research objective is to examine the effect of Relationship Quality and Perceived Value on CCB in online transportation services and Customer Satisfaction as the mediation in this relationship. Research involved 400 online transportation customers in Indonesia who used minimum three times in this transportation. By using Partial Least Square (PLS), the result found that Relationship Quality has a significant positive effect on Customer Satisfaction and CCB, Perceived Value has positive significant effect on Customer Satisfaction and has not significant effect CCB. It means that for strengthen CCB, the online transportation should create customer satisfaction. Research also found that Customer Satisfaction has a positive effect on CCB. The implication of the research is online transportation should improving the relationship quality and value for creating customer satisfaction for strengthening CCB. Customer satisfaction is the important conditions for improving CCB