Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal REKA RACANA Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik KOVALEN: Jurnal Riset Kimia
Desi Hardianti
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
RECOVERY REMAZOL YELLOW MENGGUNAKAN GEL KITOSAN TERTAUT SILANG GLUTARALDEHID Nurhaeni Nurhaeni; Desi Hardianti; Jaya Hardi; Diharnaini Diharnaini; Khairunnisa Khairunnisa
KOVALEN: Jurnal Riset Kimia Vol. 4 No. 3 (2018): Edisi Desember
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (459.016 KB) | DOI: 10.22487/kovalen.2018.v4.i3.11851

Abstract

Telah dilakukan penelitian tentang recovery Remazol yellow menggunakan gel kitosan tertaut silang glutaraldehid. Tujuan penelitian ini untuk menentukan persentasi recovery Remazol yellow menggunakan kitosan tertaut silang glutaraldehid terhadap pengaruh pH, waktu kontak dan konsentrasi larutan. Penelitian ini dilakukan dengan menggunakan rancangan acak lengkap (RAL), pada variasi pH 2, 3, 4, 5 dan 6; variasi waktu kontak 6, 12, 18, 24 dan 30 jam; serta variasi konsentrasi larutan zat warna Remazol yellow 10, 15, 20, 25 dan 30 ppm, dan setiap perlakuan dilakukan sebanyak 2 kali pengulangan. Persentasi recovery terbaik diperoleh pada pH 6, waktu kontak 24 jam dan konsentrasi Remazol yellow 30 ppm dengan persentasi recovery masing-masing 77,39%, 79,68% dan 86,46%. Kata kunci : kitosan, glutaraldehid, recover, remazol yellow, tertaut silang
Studi Eksperimental Batang Tarik Sambungan Baut pada Plat Baja Desi Hardianti; Bernardinus Herbudiman; Nessa Valiantine Diredja
RekaRacana: Jurnal Teknil Sipil Vol 4, No 4: Desember 2018
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaracana.v4i4.118

Abstract

ABSTRAKSambungan baut pada batang tarik baja memiliki kapasitas dengan macam-macam tipe kegagalan. Melalui penelitian ini diharapkan dapat menjadi media pembelajaran untuk mengetahui salah satu jenis kegagalan pada sambungan batang tarik. Pada penelitian ini dilakukan perbandingan kapasitas sambungan batang tarik plat baja 70mm*300mm*3mm disambung dengan baut penyambung diameter 8mm dengan mutu A449 melalui studi analisis kapasitas dan kegagalan dengan studi eksperimental. Pada studi analisis kapasitas dan kegagalan sambungan batang tarik baja diperoleh kapasitas sambungan sebesar 44,04kN dengan tipe kegagalan geser. Pada studi eksperimental dilakukan pengujian tarik sambungan baja batang tarik, didapatkan nilai kapasitas ultimit sebesar 52,23kN. Kesimpulan yang dapat diambil dari penelitian ini adalah baik hasil perhitungan secara analitis dan pengujian eksperimental di laboratorium menunjukkan trend yang baik dan sama. Kekuatan nominal tarik rencana () dari hasil studi analitis dengan beban ultimit hasil studi eksperimental memiliki perbedaan sebesar 15,69 % dengan hasil eksperimental lebih tinggi.Kata kunci: sambungan batang tarik baja, eksperimental, analitis, kapasitas. ABSTRACTThe bolted connection of the tension rod has capacity with various types of failure. Through this research, it is hoped that it can become a learning medium to find out one of the types of failures in the tension rod joint. In this research, the comparison of 70mm*300mm*3mm angle cross-section connections using 8mm bolt connectors with A449 quality through capacity analysis studies and failure with experimental studies. In the capacity analysis and failure of the steel pull rod connection, a connection capacity of 44.04kN was obtained with a type of shear failure. In the experimental study, tensile testing of tensile rod steel was carried out, obtained the ultimate capacity value of 52.23kN. The conclusion that can be drawn from this study is that both the results of analytical calculations and experimental testing in the laboratory show a good and the same trend. The nominal strength of plan pull () from the results of analytical studies with ultimate load results from experimental studies had a difference of 15.69% with higher experimental results.Keywords: steel tension joint, experimental, analytical, capacity.
UPAYA PEMERINTAH DAERAH DALAM PEMBANGUNAN KEPARIWISATAAN FESTIVAL PACU JALUR DI KABUPATEN KUANTAN SINGINGI TAHUN 2016-2017 Desi Hardianti; Rury Febrina
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Vol. 5: Edisi II Juli - Desember 2018
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tourism is one of the new industriest that can provide faster economic growth in terms of employment, income, living standards, and the effectiveness of other industrial sectors. The development of tourism in a region will bring many benefits for the society, namely economically, socially, and culture. Therefore, researchers want to see the efforts of local governments in the development of tourism Pacu Jalur in Kuantan Singingi regency in 2016-2017.This study aims to (1) Describe the effort of local governments in the development of tourism Pacu Jalur in Kuantan Singingi regency in 2016-2017, (2) Describe the inhibiting factors of local government in the developments of tourism Pacu Jalur in Kuantan Singingi regency 2016-2017. This research was conducted in Kuantan Singingi regency. Data collection technique is done by qualitative data analysis.The results concluded that the efforts of local governments in the development of tourism Pacu Jalur festival include development in the field of tourism industry, tourism destinations, tourism marketing and tourism institutions. The development of Pacu Jalur tourism is influenced by internal factors and external factors. Internal factor such as budget constraints, there are no local regulations directly related to Pacu Jalur, the lack of local government efforts to increase cooperation with private parties, and the lack of inventory data related to tourism development. External factors is include the lack of involvement of the company in the succes of the Pacu Jalur festival, the lack of public participation to engage in tourism development, and the tourism industry that is not orientedtoward the long term.Keyword: Local Government, Tourism Development, Pacu Jalur
Co-Authors Bernardinus Herbudiman Diharnaini Diharnaini Jaya Hardi Khairunnisa Khairunnisa Nessa Valiantine Diredja Nurhaeni Nurhaeni Rury Febrina