Jumiarti Andi Lolo

Universitas Kristen Indonesia Toraja

The development of technology and information is in line with the era of society 5.0 which occurs in various fields, especially in terms of infrastructure which of course will lead to high mobility. One of the negative impacts that arise is noise. For that we need a material that can be used as an acoustic material that functions to absorb sound. C...

Garbage is one of the several factors that cause the environmental pollution when it has not been managed properly. The garbage problem occurs because of the paradoxal of garbage production and garbage degradation. The production rate is very fast while on the other hand the rate of degradation is very slow. Two of three parts of garbage that very...

The present study aimed to synthesize hydroxyapatite (HAp) from milkfish (Chanos chanos) bone by simple heat treatments ranging from 600 to 800 °C. The yield and color of synthesized powders before and after heat treatment were analyzed. The synthesized powders were characterized using Fourier transform infrared spectroscopy (FTIR) to identify the...

Telah banyak variasi campuran untuk membuat bata khususnya yang memanfaatkan limbah, salah satunya yaitu limbah plastik. Pada penelitian sebelumnya telah diperoleh komposisi bata berbahan dasar limbah plastik dengan kekuatan tekan bata yang dihasilkan sebesar 140 kg/cm2. Namun demikian perlu diperhatikan bahwa bahan penyusun utama dari bata tersebu...

The present work aims to investigate a green synthesis of AgNPs using Muntingia calabura leaf extract as reducing and stabilizing agents. The AgNPs formation was monitored using UV-Vis spectrophotometer. Characterisations of AgNPs size and shape were observed by TEM. The elemental analysis was analyzed using XDS. The maximum surface Plasmon resonan...

The present study aims to fabricate and evaluate the physio-chemical features of biocomposites filled with natural resources. Kenaf was used as a natural resource model and prepared by mechanical milling and sieving to obtain short fiber form. Virgin and recycled acrylonitrile butadiene styrene (ABS) were used as biocomposite matrix. Granular bioco...

Sejalan dengan pesatnya pembangunan, kebutuhan masyarakat untuk bahan bangunan juga semakin meningkat, salah satunya adalah semen sebagai bahan utama konstruksi. Dengan meningkatnya kebutuhan akan semen, maka harga semen pun akan semakin tinggi. Hal ini memicu para ahli untuk mengembangkan bahan alternatif pengganti semen yang relatif murah tanpa m...

Air merupakan sumber daya alam yang vital bagi keberlangsungan hidup manusia bahkan semua makhluk hidup. Namun saat ini, masalah utama yang dihadapi oleh sumber daya air ada dua yaitu kuantitas dan kualitas air. Pada saat musim kemarau, kuantitas air yang tersedia tidak dapat mencukupi kebutuhan air sehingga diperlukan konservasi terhadap sumber da...

Pergeseran tanah merupakan salah satu faktor terjadinya tanah longsor (landslide). Untuk itu, diperlukan suatu prototype alat yang dapat membantu memberikan informasi dini dan peringatan akan terjadinya longsor. Telah dilakukan penelitian tentang simulasi pergeseran tanah dengan menggunakan sensor LVDT (Linear Variable Differential Transformer). Se...

Pengembangan komposit serat alam di Indonesia memiliki prospek yang sangat potensial karena ketersediaan sumber daya alam yang melimpah. Kenaf (Hibiscus cannabinus) merupakan salah satu sumber serat yang sangat potensial untuk dikembangkan karena memiliki kandungan selulosa yang cukup tinggi. Penelitian ini mengidentifikasi serat kenaf sebagai baha...

The effect of resonance on material semiconductor of InxGa1-xAs/InP Tensile Strained has been investigated using a numerical methods. In this study, the structure of the double barrier material of InxGa1-xAs/InP Tensile Strained is modeled using the transfer matrix method with symmetric width barrier layers. The energy used was varried from 0 to 1...

Development of material engineering especially in the field of natural fiber composites in Indonesia has potential prospects because of the availability of natural resources are abundant. Kenaf (Hibiscus cannabinus) is one source of fiber that enough potential to be developed and optimally utilized as a filler in a composite. Acrylonitrile Butadien...