Data Mining Menggunakan Algoritma Apriori dalam Rekomendasi Produk Restoran

Pemanfaatan teknologi Data mining kini telah banyak diterapkan di perusahaan besar di berbagai aspek. Namun sayangnya, masih banyak usaha-usaha di Indonesia yang belum memanfaatkan teknologi data mining dalam meningkatkan rencana strategis usaha kedepan, data-data yang masuk ke perusahaan hanya menjadi data history, masuk ke arsip perusahaan dan akhirnya dibiarkan tersimpan. Perusahaan dituntut memberikan layanan yang mudah dan cepat kepada customer serta menentukan strategi bisnis kedepannya, khususnya pada Restoran Bahari Bangka Belitung dalam melayani wisatawan mendapatkan fakta bahwa wisatawan sangat sulit menentukan produk yang ingin dipesan dan meminta rekomendasi kepada pelayan. Berdasarkan masalah yang dihadapi ini dapat diselesaikan dengan memanfaatkan data transaksi yang diolah dalam memberikan rekomendasi produk atau menu unggulan yang terkait untuk kepentingan pemasaran. Data mining melakukan penggalian data yang sudah tersimpan dalam jangka waktu tertentu untuk dijadikan refrensi didalam memberikan rekomendasi. Algoritma dalam penelitian ini adalah algoritma apriori berbasis website dan android dengan menggunakan metode prototype. Hasil dari penelitian ini yaitu rekomendasi apriori terhadap produk dalam bentuk aturan asosiatif atau pola transaksi customer dengan cara mengumpulkan data transaksi lalu dengan eksperimen dataset sejumlah 274 transaksi dihitung menggunakan algoritma Apriori dengan nilai support minimal 50 dan nilai confidence minimal 75%. Pengujian User Acceptance Testing dari 6 variabel dengan detail 10 pertanyaan mengenai effort expectancy, social influence, performance expectancy, use behavior, supporting facilitating dan behavioral intention menghasilkan indeks rata-rata sebesar 90.4%.

Impact of the Gamma Variant on the ICU Admission in a Hospital of the Autonomous City of Buenos Aires (CABA), Argentina

Purpose: Comparison between patients admitted to the Intensive Care Unit (ICU) with ventilatory support during the first and second wave (Gamma variant) of COVID 19 in a tertiary hospital in the City of Buenos Aires.Method: Descriptive, observational, prospective cohort study in ICU of an acute general hospital in Argentina, with patients adult patients COVID-19 admitted consecutively to the ICU. The ICU the main variables of interest: Demographic and laboratory data, history, duration of MV, mortality.Results: 44 patients were recruited during the first wave, and 80 in the second. Significant differences were observed in the second wave for age (60, [SD 11]; vs 68 [SD 11]; p <0.01), days with symptoms (9 [SD 5]; vs 4.5 [SD 3]; p <0.01), duration of MV (10 days [SD 7]; vs 16 [SD 13]; p <0.01), Ferritin (1450 mcg / l [SD 547]; vs 941 mcg / l [ SD 593]; p 0.04) and use of antibiotics (97% vs 45% p <0.01). There was no difference in mortality (66% vs 78% p 0.14) but there was in its primary causes; being more frequent hypoxemia associated with sepsis in the second wave (40% vs 3.4% p <0.01) and hypoxemia and multiorgan failure in the first (28% vs 4% p <0.01).Conclusions: During the second wave of the pandemic, due to Gamma variant, more patients were admitted to our unit, younger, with a longer evolution time, a shorter time on MV and a greater inflammatory response, with no difference in mortality, although there was a difference in its causes.

Analysis of Potential and Feasibility of Hydropower Energy from Sepaku Semoi Dam in Penajam Paser Utara Regency

This paper will present a techno-economic potential and feasibility analysis in the planning of renewable hydropower energy from Sepaku Semoi Dam in Penajam Paser Utara (PPU) Regency. The dam was planned to be built to support the water needs of Indonesia’s prospective capital. The analysis was done based on the last twenty years’ rainfall intensity data history from Sepaku rain station and Sepinggan rain station and digital elevation model (DEM) from DEMNAS with support of the river basin agency of Kalimantan Timur. The result of dependable discharge calculation of Sepaku Semoi river using FJ Mock Method is 2.45 m/s2. And the head of the hydropower power plant is 15.85 meters. The total potential electricity generated from hydropower reached 2,593,140 kWh/year. The assessment of feasibility indicators in this research took into account the technology and economic aspects. The technology aspects help evaluate the technical planning of installations that are possible to build in the dam. The economic aspect of feasibility evaluates the net present value (NPV), internal rate of return (IRR), and the payback period of renewable energy installation. This analysis aimed to get a comprehensive insight from the potential hydropower energy that exists at the research locations and conduct a feasibility study based on techno-economic analysis to develop renewable energy. The results showed that 15.85 meters had the most significant potential of hydropower by generating 290 kW continuous power with a feed-in tariff of 0.054 USD/kWh. The electricity was feasible to offer to the government electrical company. Moreover, this project had a payback period of 8 years, and NPV of 64,005 USD, and an IRR Project of 11.86%.

The Implementation of Critical Gas Rate in Liquid Loading Well and Optimization Analysis using the Adequacy Chart

In the gas well, liquid loading occurs when the gas rate is insufficient to lift liquids into the surface such as water and/or condensate. This causes an accumulation of the liquid in the wellbore, supplies additional backpressure to the formation, and may completely kill the well. Meanwhile, the limited space and typically high cost of offshore operations have made a proper study for optimization selection very essential. The selected project must fulfill several requirements, namely: 1) Fit for the purpose, 2) Low risk and uncertainties, and 3) Economic. Hence, this study will describe the pilot project and continuous improvement process of lowering the gas well pressure using a wellhead compressor and a temporary separator to optimize the liquid loading. It also explains the implementation of critical gas rate in predicting the liquid loading event from the well’s production history. A new analysis method utilizing the adequacy chart was proposed to verify the suitability of the available pressure-lowering system unit available in the market with the well candidates. An adequacy chart was constructed from the well’s deliverability, critical gas rate, and lowering pressure unit or system capacity. These three charts will combine to generate an overlapping area, which signifies suitability for the recommended operation. The well’s production data history can be used to predict the liquid loaded-up event due to the continued decline of the generated gas. Also, a combination of the critical gas rate and decline analyses can predict potential liquid loading problems.

Impact of the gamma variant on the icu admission in a hospital of the autonomous city of Buenos Aires (Caba), Argentina

Objectives: Comparison between patients admitted to the Intensive Care Unit (ICU) with ventilatory support during the first and second wave (Gamma variant) of COVID 19 in a tertiary hospital in the City of Buenos Aires. Design: Descriptive, observational, prospective cohort study. Setting: ICU of an acute general hospital in Argentina. Patients: Adult patients with COVID-19 admitted consecutively to the ICU. Intervention: Admission to ICU. Main variables of interest: Demographic and laboratory data, history, duration of MV, mortality. Results: 44 patients were recruited during the first wave, and 80 in the second. Significant differences were observed in the second wave for age (60, [SD 11]; vs 68 [SD 11]; p <0.01), days with symptoms (9 [SD 5]; vs 4.5 [SD 3]; p <0.01), duration of MV (10 days [SD 7]; vs 16 [SD 13]; p <0.01), Ferritin (1450 mcg / l [SD 547]; vs 941 mcg / l [ SD 593]; p 0.04) and use of antibiotics (97% vs 45% p <0.01). There was no difference in mortality (66% vs 78% p 0.14) but there was in its primary causes; being more frequent hypoxemia associated with sepsis in the second wave (40% vs 3.4% p <0.01) and hypoxemia and multiorgan failure in the first (28% vs 4% p <0.01). Conclusions: During the second wave of the pandemic, due to Gamma variant, more patients were admitted to our unit, younger, with a longer evolution time, a shorter time on MV and a greater inflammatory response, with no difference in mortality, although there was a difference in its causes.

Impact of the Gamma Variant on the ICU Admission in a Hospital of the Autonomous City of Buenos Aires (CABA), Argentina

Purpose: Comparison between patients admitted to the Intensive Care Unit (ICU) with ventilatory support during the first and second wave (Gamma variant) of COVID 19 in a tertiary hospital in the City of Buenos Aires.Method: Descriptive, observational, prospective cohort study in ICU of an acute general hospital in Argentina, with patients adult patients COVID-19 admitted consecutively to the ICU. The ICU the main variables of interest: Demographic and laboratory data, history, duration of MV, mortality.Results: 44 patients were recruited during the first wave, and 80 in the second. Significant differences were observed in the second wave for age (60, [SD 11]; vs 68 [SD 11]; p <0.01), days with symptoms (9 [SD 5]; vs 4.5 [SD 3]; p <0.01), duration of MV (10 days [SD 7]; vs 16 [SD 13]; p <0.01), Ferritin (1450 mcg / l [SD 547]; vs 941 mcg / l [ SD 593]; p 0.04) and use of antibiotics (97% vs 45% p <0.01). There was no difference in mortality (66% vs 78% p 0.14) but there was in its primary causes; being more frequent hypoxemia associated with sepsis in the second wave (40% vs 3.4% p <0.01) and hypoxemia and multiorgan failure in the first (28% vs 4% p <0.01).Conclusions: During the second wave of the pandemic, due to Gamma variant, more patients were admitted to our unit, younger, with a longer evolution time, a shorter time on MV and a greater inflammatory response, with no difference in mortality, although there was a difference in its causes.

Impact of the Gamma Variant on the ICU Admission in a Hospital of the Autonomous City of Buenos Aires (CABA), Argentina

Purpose: Comparison between patients admitted to the Intensive Care Unit (ICU) with ventilatory support during the first and second wave (Gamma variant) of COVID 19 in a tertiary hospital in the City of Buenos Aires.Method: Descriptive, observational, prospective cohort study in ICU of an acute general hospital in Argentina, with patients adult patients COVID-19 admitted consecutively to the ICU. The ICU the main variables of interest: Demographic and laboratory data, history, duration of MV, mortality.Results: 44 patients were recruited during the first wave, and 80 in the second. Significant differences were observed in the second wave for age (60, [SD 11]; vs 68 [SD 11]; p <0.01), days with symptoms (9 [SD 5]; vs 4.5 [SD 3]; p <0.01), duration of MV (10 days [SD 7]; vs 16 [SD 13]; p <0.01), Ferritin (1450 mcg / l [SD 547]; vs 941 mcg / l [ SD 593]; p 0.04) and use of antibiotics (97% vs 45% p <0.01). There was no difference in mortality (66% vs 78% p 0.14) but there was in its primary causes; being more frequent hypoxemia associated with sepsis in the second wave (40% vs 3.4% p <0.01) and hypoxemia and multiorgan failure in the first (28% vs 4% p <0.01).Conclusions: During the second wave of the pandemic, due to Gamma variant, more patients were admitted to our unit, younger, with a longer evolution time, a shorter time on MV and a greater inflammatory response, with no difference in mortality, although there was a difference in its causes.

Impact of the Gamma Variant on the ICU Admission in a Hospital of the Autonomous City of Buenos Aires (Caba), Argentina

Purpose Comparison between patients admitted to the Intensive Care Unit (ICU) with ventilatory support during the first and second wave (Gamma variant) of COVID 19 in a tertiary hospital in the City of Buenos Aires. Method Descriptive, observational, prospective cohort study in ICU of an acute general hospital in Argentina, with patients adult patients COVID-19 admitted consecutively to the ICU. The ICU the main variables of interest: Demographic and laboratory data, history, duration of MV, mortality. Results 44 patients were recruited during the first wave, and 80 in the second. Significant differences were observed in the second wave for age (60, [SD 11]; vs 68 [SD 11]; p <0.01), days with symptoms (9 [SD 5]; vs 4.5 [SD 3]; p <0.01), duration of MV (10 days [SD 7]; vs 16 [SD 13]; p <0.01), Ferritin (1450 mcg / l [SD 547]; vs 941 mcg / l [ SD 593]; p 0.04) and use of antibiotics (97% vs 45% p <0.01). There was no difference in mortality (66% vs 78% p 0.14) but there was in its primary causes; being more frequent hypoxemia associated with sepsis in the second wave (40% vs 3.4% p <0.01) and hypoxemia and multiorgan failure in the first (28% vs 4% p <0.01). Conclusions During the second wave of the pandemic, due to Gamma variant, more patients were admitted to our unit, younger, with a longer evolution time, a shorter time on MV and a greater inflammatory response, with no difference in mortality, although there was a difference in its causes.