Simulasi efek sebaran populasi pada performa uji nilai tengah satu populasi

The objective of this study is to optimize the ethanol content produced from fresh banana stems (Musa paradisiaca Linn) using Box–Behnken Design (BBD) coupled with Response Surface Methodology (RSM). The study aims to determine the optimal combination of fermentation parameters specifically commercial dry yeast loading (g/L), fermentation time (days), and fermentation temperature (°C) that maximizes ethanol yield. Prior to this optimization, the hydrolysis stage was independently optimized by evaluating different sulfuric acid concentrations, and the optimal condition was selected and held constant throughout the fermentation experiments. Under these controlled hydrolysis conditions, the fermentation process is systematically investigated to quantify the main, interaction, and quadratic effects of the selected variables on ethanol production. A sequential experimental design approach was employed. Initially, key process parameters were identified and preliminary conditions optimized. Subsequently, a Box–Behnken design (BBD) within the framework of response surface methodology (RSM) was applied to evaluate the effects of yeast loading, fermentation time, and temperature on ethanol production. This approach enabled the modeling of quadratic and interaction effects for process optimization.

Point Pattern Analysis of fitness centers in the city of Kraków

tek örneklem t testi

An exploratory data analysis of game-by-game box scores data across the NBA, WNBA, NCAAM and NCAAW Division 1 spanning 2016 - 2025. Explores scoring patterns, efficiency, rebounding, assists and defence. Use Cases: 1. Dean Oliver's Four Factors - What Makes a Champion? 2. Pace & Space vs Defence Wins Championships - NBA Playing Style Analysis

Insiden kecelakaan lalu lintas, khususnya yang melibatkan transportasi massal seperti kereta api, seringkali tidak hanya menimbulkan korban jiwa tetapi juga guncangan ekonomi yang masif bagi keluarga yang ditinggalkan. Penelitian ini menganalisis nilai Human Life Value (HLV) secara aktuaria dari 16 korban jiwa pada insiden kecelakaan antara Commuter Line dan Kereta Api Argo Bromo Anggrek di Stasiun Bekasi Timur pada 27 April 2026. Dengan menggunakan package “lifecontingencies” pada software R dengan versi 4.5.1, Penelitian ini membandingkan HLV korban sebagai asumsi menjadi tulang punggung keluarga yang dapat menghidupi keseharian dengan estimasi total nilai santunan asuransi sosial yang diterima ahli waris. Hasil visualisasi data menggunakan “ggplot2” menunjukkan adanya selisih asuransi (insurance gap) yang sangat signifikan, di mana total nilai santunan jauh di bawah nilai kerugian ekonomi riil (HLV), khususnya bagi korban yang berada di usia produktif awal yakni usia 20-35 tahun. Hal ini mengindikasikan bahwa santunan publik dan jaminan sosial belum cukup untuk memitigasi hilangnya mata pencaharian ahli waris secara jangka panjang.