Article Per Year (5 Year)
p-Index From 2019 - 2024
0.23
P-Index
This Author published in this journals
All Journal Jurnal Ekonomi & Studi Pembangunan Jurnal Akademika Kimia Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN
Ma’ruf, Ahmad
Unknown Affiliation
Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
ANALISA SEAKEEPING KAPAL PEMBERSIH SAMPAH (TRASH SKIMMER) DI WILAYAH PERAIRAN TELUK SUMENEP Ma’ruf, Ahmad; Pranatal, Erifive
Prosiding Seminar Teknologi Kebumian dan Kelautan Vol 2, No 1 (2020)
Publisher : Prosiding Seminar Teknologi Kebumian dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1097.246 KB)

Abstract

Belum tertanganinya sampah yang setiap hari mengambang di perairan Teluk Sumenep menjadi latar belakang dari dilakukannya studi ini. Perancangan kapal tentunya membutuhkan seakeeping yang baik. Seakeeping merupakan hal yang sangat penting dalam perencanaan pembangunan serta pengoperasian kapal, karena dari seakeeping kita dapat mengetahui pergerakan kapal saat terkena gelombang secara simulasi. Prediksi performa olah gerak (seakeeping) di perairan tertentu merupakan salah satu dari aspek-aspek penting pada tahap perencanaan kapal. Performa seakeeping menjadi penting karena terkait dengan aspek kenyamanan dan keselamatan suatu kapal. Untuk menyelesaikan perhitungan seakeeping menggunakan software maxsurf motion. Hasil grafik dari pergerakan (Heave) heading 90° (Beam Seas) RAO 0.73 dan Wave Encounter 2,9 rad/s. Heading 135° (Quarter Head Seas) RAO 0.65 dan Wave Encounter 0.4 rad/s. Heading 180° (Head Seas) RAO 0.65 dan Wave Encounter 0.4 rad/s. (Pitch) Heading 90° (Beam Seas) RAO 1,25 dan Wave Encounter 0,4 rad/s. Heading 135° (Quarter Head Seas) RAO 0.98 dan Wave Enounter 0.4 rad/s. Heading 180° (Head Seas) RAO 0.4 dan Wave Encounter 0.4 rad/s. (Roll) Heading 90° (Beam Seas) RAO 5.8 dan Wave Encounter 1.5 rad/s. Heading 135° (Quarter Head Seas) RAO 0.42 dan Wave Encounter 1.5 rad/s. Heading 180° (Head Seas) RAO 0 dan Wave Encounter 0 rad/s.
PERTUMBUHAN EKONOMI INDONESIA: Determinan dan Prospeknya Ma’ruf, Ahmad; Wihastuti, Latri
Jurnal Ekonomi & Studi Pembangunan JESP Volume 9 Nomor 1, April 2008
Publisher : Universitas Muhammadiyah Yogyakarta

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

Abstract

This study analyzes the influence of government expenditure and some other variables that affect the long-term economic growth at provincial level in Indonesia. This study uses panel data analysis which consists of 26 provinces during the period 1980-2006. Data used has been through stasioneritas tests using Augmented Dickey Fuller test (ADF) - Fisher for panel data suggested by Madalla and Wu (1999). The result, stationary data on the first level of difference. This study shows that the coefficient of real government spending is significantly positive. This means that government expenditure has an important role in improving economic growth in Indonesia. pengeluaran pemerintah secara agregat.
ANALISIS HAMBATAN EKSPOR PRODUK KERAJINAN DAERAH ISTIMEWA YOGYAKARTA Farransahat, Matahari; Ma’ruf, Ahmad
Jurnal Ekonomi & Studi Pembangunan JESP Volume 7 Nomor 2, Oktober 2006
Publisher : Universitas Muhammadiyah Yogyakarta

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

Abstract

The research was aimed to find OUI factors and variables on technical, administrative and regulation which are barriers on handicraft exports in Daerah Istimewa Yogyakarta in 2005 based on the exporter perception about the barrier on handicraft exports. By using first hand data or primary data and analyze with the A.HP (Analytical hierarchy Process) method.In the research concludes that the factors, according to exporters preception, the regulations on labeling and product standard is the main barrier that influence exporting process on handicrafts in DIY. Following it, is the technical and administrative problem as the second barrier influencing the handicraft exports. The third barrier is other regulations that involves the export process of handicraft. It also concludes that the variables which become barriers to handicraft export in D1Y according to exporter preception is first of all, health and envoirment conservation, second is packaging procedur, third is valuing merchandise in customs office. Beside the variables mentioned there are seven other barrier variables follows and all of those variables concluded also involves in each barrier factors mention earlier.In spite of the factors and variables of handicraft export mentioned, there are still occur classical problems in the DIY handicraft industry such as the need of capital and soft loan, marketing the product, raw material supply, workers, buyers behavior and also on illegal tax that tends to high cost economy.
Pemanfaatan Biji Kelor (Moringa oleifera L.) Sebagai Pasta Gigi Ma’ruf, Ahmad; Supriadi, Supriadi; Nuryanti, Siti
Jurnal Akademika Kimia Vol 5, No 2 (2016)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.059 KB)

Abstract

Moringa seed (moringa oleifera L.) is a kind foodstuffs that contains calcium. Calcium is a mineral that is needed by our bodies in all ages, for the infants to the elderly. Calcium is useful in the formation and maintenance of bones and teeth. The aim of this study is to determine the concentration calcium (Ca) in moringa seed (moringa oleifera L.) and its utilization as the fabrication of toothpaste. The method used in this study was a laboratory experiment using a flame photometer. The results showed that the concentration of calcium in moringa seeds with three repetitions was 131.67 ± 12.58 mg/100g. The appropriate composition of materials to make toothpaste from moringa seeds including the roughness tests of toothpaste and based on the fondness of panelists was 25:5 (morinanga seed:NaHCO3). Furthermore, the test of freshness, aroma, and colour with comparison of glycerin, mint leaves, betel leaves and food coloring 7.5: 5: 5: 2.
Co-Authors Erifive Pranatal Farransahat, Matahari Siti Nuryanti Supriadi Supriadi Wihastuti, Latri