Biodiesel, an environmentally degradable and renewable biofuel derived from organic matter, has exhibited its capacity as a viable and sustainable substitute for traditional diesel fuel. Numerous comprehensive investigations have been conducted to assess the effects of biodiesel on internal combustion engines (ICEs), with particular emphasis on diesel engine performance metrics, combustion dynamics, and emission profiles. Biodiesel demonstrates a significant decrease in emissions of particulate matter (PM), hydrocarbon (HC), and carbon monoxide (CO) in diesel engines. The addition of biodiesel has shown a minor decrease in power output and a slight increase in fuel consumption and nitrogen oxide (NOx) emissions. Nevertheless, the extensive implementation of biodiesel, despite its potential to effectively reduce detrimental emissions, has encountered obstacles stemming from external influences including restricted availability of feedstock, volatile petroleum oil prices, and inadequate governmental backing. This review presents a concise summary of significant advancements in the global adoption of biodiesel from a sustainability perspective. This review provides valuable insights into the challenges and opportunities associated with the advancement of sustainable biofuel technologies by synthesizing the current state of palm biodiesel and examining global trends in biodiesel implementation. The wider adoption of biodiesel can be facilitated by addressing concerns pertaining to feedstock availability, price stability, and policy support. This would allow for the realization of significant environmental advantages and contribute to a more environmentally friendly and sustainable biofuel.

Abstrak: PT. XYZ merupakan perusahaan pembuatan kemasan jerigen plastik, bahan baku yang digunakan untuk memproduksi jerigen yaitu HDPE Titanvene, PP Cosmoplene, LDPE Cosmothene, dan Pewarna. Kebutuhan bahan baku pada PT. XYZ yang berfluktuatif dilihat dari keadaan pada waktu menjelang permintaan pemesanan jerigen banyak dari perusahaan lain. Sehingga berdampak terhadap stock bahan baku, yang dimana satu bulan cukup memenuhi kebutuhan produksi dan kadang bahan baku masih tersisa. Tujuan dari penelitian ini adalah mengendalikan persediaan bahan baku yang optimal untuk mengefisienkan total biaya persediaan dengan menggunakan metode persediaan probabilistik model Q dengan back order. Prosedur pengolahan data yang dilakukan dalam penelitian ini yaitu melakukan analisis klasifikasi ABC untuk menentukan jenis bahan baku yang termasuk kedalam kategori A. Lalu setelah itu dilakukan pengujian distribusi normal data kebutuhan bahan baku untuk mengetahui data tersebut normal atau tidak. Kemudian dilakukan pengolahan data menggunakan metode persediaan probabilistik model Qback order. Kata Kunci: Pengendalian Persediaan, Metode Q probabilistik, Safety Stock, Biaya Total.

Perancangan produk merupakan hal yang paling penting dalam suatu proses bisnis perusahaan. Perusahaan harus senantiasa mengembangkan produk yang dimiliki agar produk tetap eksis dan tidak mengalami fase kematian. Penelitian ini merancang produk softener suci laundry. Metode yang digunakan dalam penelitian ini adalah dengan metode Quality Function Deployment (QFD) dengan pembuatan House of Quality yang dapat menterjemahkan voice of customer kedalam spesifikasi produk.. Dari hasil survey dilakukan pembobotan dan didapatkan bobot atribut konsumen (voice of customer) yang paling besar adalah softener pakaian yang diinginkan adalah softener yang lembut dengan bobot 23%. Kesimpualan pada penelitian ini adalah rekomendasi desain kemasan dan isi softener suci laundry adalah kekuatan Material kemasan (18 ribu x uji), tingkat kekentalan campuran (0,7 modulus), koefisien gesek kemasan / kelicinan (0,1 µ), tinggi kemasan (9 cm), berat kemasan (40 gram), tebal kemasan (12 mm), lebar kemasan (4 cm), panjang tutup kemasan (42,8 mm), tinggi tutup kemasan (46 mm), lebar tutup kemasan (39 mm), pewarnaan (terang), jenis campuran (buatan), dan model kemasan (tidak berkontur). Kata Kunci : Quality Function Deployment (QFD), House of Quality, voice of customer

Modern organizational culture presents challenges for many companies in managing human resources, especially in supporting the adaptation of Generation Z in the work environment. This generation has unique characteristics, such as dependence on technology, the need for work flexibility, and the value of work that is more inclusive and based on work-life balance. Therefore, organizations that want to remain competitive must develop adaptive human resource (HR) management strategies in order to attract, retain, and optimize the productivity of the workforce of this generation. This study aims to explore effective HR management strategies in supporting the adaptation of Generation Z to modern organizational culture. The method used in this study is a literature study with a qualitative approach, which involves the analysis of various academic journals, books, and research reports in the last five years. The data analysis techniques applied are content analysis and systematic comparison to identify patterns and trends in HR management strategies applied in various organizations. The results of the study show that the success of organizations in attracting and retaining Generation Z is highly dependent on the implementation of digitalization-based HR strategies, work flexibility, social media-based employer branding, and more empathetic and adaptive leadership. Companies that are able to adapt to the characteristics and preferences of this generation will have an advantage in creating an innovative and competitive work environment. Thus, traditional approaches in HR management need to be adapted to changing workforce dynamics in order to accommodate the needs and expectations of Generation Z more effectively.

Penelitian ini bertujuan untuk menganalisis aspek Keselamatan dan Kesehatan Kerja (K3) menggunakan metode Hazard Identification, Risk Assessment and Risk Control (HIRARC) pada Unit Operasi 2 PT Wika Beton. Tujuan utama dari analisis ini adalah mengidentifikasi dan mengelola potensi risiko guna menurunkan frekuensi kecelakaan kerja serta meningkatkan keselamatan dalam pelaksanaan pekerjaan. Penelitian ini menggunakan pendekatan deskriptif kuantitatif. Hasil analisis menunjukkan bahwa aktivitas perbaikan mekanikal pada mixer dan proses produksi beton memiliki tingkat risiko tertinggi dibandingkan dengan item pekerjaan lainnya. Sebanyak 48 jenis risiko berhasil diidentifikasi, dengan rincian: 43,75% risiko rendah, 25% risiko sedang, dan 31,25% risiko tinggi. Tingkat risiko tertinggi tercatat pada perbaikan mekanikal mixer sebesar 43,75%, diikuti oleh proses produksi beton sebesar 31,25%, dan kegiatan perawatan serta pembersihan pan mixer sebesar 22,92%. Setiap potensi bahaya di tempat kerja memiliki tingkat risiko yang bervariasi, sehingga diperlukan strategi pengendalian yang tepat, terutama pada aktivitas berisiko tinggi seperti perbaikan mekanikal. Penggunaan alat pelindung diri (APD) secara lengkap sangat krusial, terutama saat bekerja di ketinggian. Hasil penelitian ini dapat dijadikan sebagai dasar dalam pengambilan keputusan strategis terkait pengelolaan K3, khususnya dalam peningkatan prosedur keselamatan di lingkungan industri beton.

Sustainability in operational management has become a key factor in increasing the competitiveness of the industry in an era of global competition. The implementation of sustainable operational practices not only impacts cost efficiency, but also improves the company's image and compliance with environmental and social regulations. This research aims to analyze sustainability strategies in operational management and their impact on industry competitiveness. Using qualitative methods based on literature studies and library research, this study evaluates various sustainability approaches applied in the industrial sector, including resource efficiency, waste reduction, application of environmentally friendly technology, and the integration of circular economy principles in the supply chain. The results of the study show that companies that implement sustainable operational strategies are able to increase production efficiency by 20–30%, reduce operational costs, and strengthen competitiveness in the global market. In addition, compliance with environmental regulations, the adoption of renewable energy, and the optimization of green supply chains are key elements in building industrial operations that are more resilient and adaptive to market changes. The study also found that companies that integrate sustainability into their operations tend to be more innovative and have a higher appeal to investors and consumers who are increasingly concerned about environmental and social aspects. The implications of this study emphasize the need for more proactive corporate policies in implementing sustainable operations, as well as the importance of regulatory support and government incentives in accelerating industrial transformation towards sustainability. This study is expected to provide insights for stakeholders in the industry to optimize sustainable operational management strategies to increase competitiveness in the modern industrial era.