Using synthetic dyes causes bad impact on the environment. But using natural dyes has several problems such as fade, slight colour variations and takes longer time. In order to solve that problems, it is needed to develop instant natural dyes. This study aims to design instant natural dyes to fulfill needs of batik artisans that having minimal environmental impact as well as having minimal cost. This study use green quality function deployment II method. This study involve voice of customer identification, calculation gap, the determination of characteristic of technical, making the house of quality (HOQ), life cycle assessment (formulation of green house & green the matrix), life cycle cost (formulation of cost house, the preparation of cost the matrix) and concept comparison house (CCH). Based on voice of customer, natural dyes that will be developed is red colour. Red natural dyes extracted from root of Morinda citrifolia and Ceriops candolleana. In this research, there are two alternatives of natural dyes namely powders and liquid natural dyes. The result of this study is powder natural dyes selected because of lower environmental impact and user operational cost.
Pandemi Covid-19 yang terjadi di Indonesia pada awal tahun 2020 mengakibatkan pemberlakuan physical distancing berskala besar sehingga berdampak pada meningkatnya permintaan terhadap pengiriman makanan secara online. Dalam usaha meningkatkan pelayanannya dengan jumlah permintaan yang meningkat, UMKM rumahan pada penelitian ini merancang rute pengiriman yang lebih efisien. Pada proses pengiriman sebelumnya hanya berdasarkan kapasitas armada pengiriman dan lokasi pelanggan yang terdekat dengan lokasi UMKM. Penelitian ini bertujuan untuk mengevaluasi rute awal pengiriman dan menentukan rute baru dan urutan kunjungan ke setiap titik lokasi pelanggan dengan menggunakan metode saving matrix dan dengan menggunakan algoritma nearest neighbor dan nearest insertion. Dengan menggunakan metode saving matrix didapatkan dua rute kunjungan. Berdasarkan perbandingan hasil pengurutan kunjungan pelanggan pada setiap rute, didapatkan jarak tempuh terpendek dengan menggunakan algoritma nearest neighbor. Total penghematan jarak tempuh yang didapatkan berdasarkan penentuan rute dengan menggunakan metode saving matrix dan algoritma nearest neighbor adalah sebesar 34.5% (dari total jarak tempuh pada rute awal adalah 77.19 km menjadi 50.59 km pada rute yang baru).
Corona Virus Disease (COVID-19) pandemic dramatically impacted the energy sector. About 4.5% of global primary energy consumption dropped in 2020, where coal demand decreased by 220 million tons of coal equivalent. The drop was driven by lower electricity demand due to policies against Covid-19 (i.e., travel restriction, lockdown, and new standard). In particular, the COVID-19 crisis has already created profound uncertainties for the Indonesian coal mining industry as one of the world's largest coal producers and exporters. Coal is the primary energy source for Indonesian electricity, contributing to the national revenues. A debate about action to take, whether to focus on dealing with Covid-19 health or maintaining economic growth, is unavoidable. With the number of cases continuing to rise, we set out to investigate the impact of COVID-19 on Indonesia's coal mining industry. Rapid desk assessment and descriptive statistical approach were used in this study by evaluating secondary data during the pandemic, comparing with previous years before the COVID-19 pandemic. The results revealed a tangible transformation in coal demand, production, and price. Despite domestic coal consumption for power generation decreased, the coal price increased in mid of 2021 due to rising coal demand in China.
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