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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Online Mahasiswa (JOM) Bidang Ilmu Ekonomi Jurnal Pencerahan DE'RECHTSSTAAT Jurnal Teknologi Jurnal Elemen Jurnal Teknik Kimia Journal Transformation of Mandalika Economic Reviews Journal Journal of Social And Economics Research Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Lokawati: Jurnal Penelitian Manajemen dan Inovasi Riset Triwikrama: Jurnal Ilmu Sosial JRIIN :Jurnal Riset Informatika dan Inovasi IJAE Buletin Pos dan Telekomunikasi Studi Administrasi Publik dan ilmu Komunikasi
Muhammad Ikhwan
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Physics Social Sciences

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PENGARUH PENAMBAHAN ADITIF KALSIUM KLORIDA (CaCl2) DARI LIMBAH KULIT TELUR TERHADAP REAKSI PENGERASAN SEMEN Muhammad Ikhwan; Satriawan; Elda Melwita
Jurnal Teknik Kimia Vol 23 No 1 (2017): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

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Abstract

Akselerator adalah suatu jenis aditif tipe C yang bekerja dengan mempercepat waktu pengikatan dan pengerasan beton. Penelitian ini dilakukan untuk mengetahui bagaimana pengaruh variasi penggunaan bahan tambahan akselerator Kalsium Klorida (CaCl2) terhadap waktu ikat awal beton/mortar. Kalsium klorida didapat dengan mereaksikan kalsium karbonat dengan asam klorida. Kalsium karbonat yang terdapat pada cangkang telur mencapai 94%. Cangkang telur mudah dijumpai dalam kehidupan sehari-hari, dan kebanyakan tidak dimanfaatkan kembali sehingga menjadi limbah yang dapat merusak ekosistem maupun estetika jika tidak di tanggulangi dengan benar. Oleh karena itu pemanfaatan limbah cangkang telur ini merupakan solusi untuk menggunakan kembali limbah yang tidak terpakai menjadi bahan baku pembuatan bahan kimia campuran pada semen. Sering lemahnya kontrol terhadap penambahan dosis akselerator, yang dapat disebabkan karena pengadukan molen yang tidak rata ataupun karena keperluan untuk menekan biaya konstruksi, menyebabkan penambahan dosis akselerator tersebut tidak sesuai dengan dosis optimal yang ditetapkan oleh pembuat bahan aditif ini. Sehingga apabila akselerator tersebut digunakan di bawah dosis optimal, akan menyebabkan tidak tercapainya waktu ikat awal pada 360 menit yang diharapkan. Akibat tersebut akan dapat menyebabkan keruntuhan pada bagian?bagian struktur yang ada. Dari hasil penelitian diperoleh kualitas Kalsium Klorida (CaCl2) terbaik terdapat pada 2 %, dimana waktu ikat awal pada 240 menit diperoleh penetrasi minimal 17.
Tehnik Mendeteksi Kebakaran Hutan Melalui Citra Satelit Multiwaktu: Studi Kasus di Propinsi Sumatera Selatan dan Riau I Nengah Surati Jaya; Muhammad Ikhwan; N Nurhendra; Soedari Hardjoprajitno
Jurnal Manajemen Hutan Tropika Vol. 6 No. 2 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

This paper describes the techniques for detecting forest and land fire. Of the three change detection techniques evaluated, i.e., post-classification comparison, multitemporal principal component and direct multitemporal classification, the multitemporal principal component, specifically that was derived from variance-covariance matrix (unstandardized principal component) was recognized to be suitable in detecting changes due to forest and land fires. The study found that the delta brightness, delta greenness, stable brightness and stable greenness indices derived from unstandardized multitemporal principal component analysis effectively summarized burnt-forest information. In this study, it was shown that Landsat TM provides information of totally and moderatelly burnt logged-over forest as well as burnt bush/shrub.
PENGELUARAN PEMERINTAH DAN PENDAPATAN TERHADAP PEMBANGUNAN PENDIDIKAN DI ACEH . Zulkifli; . Amri; Muhammad Ikhwan
Jurnal Pencerahan Vol 9, No 1 (2015): Maret 2015
Publisher : Majelis Pendidikan Daerah (MPD) Aceh dan Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.52 KB) | DOI: 10.13170/jp.9.1.2481

Abstract

This study aimed to analyze the effect of government spending on education and per-capita income to the development of education in the province of Aceh by using panel data. The literacy rate, enrollment rate of primary and secondary schools were utilised to measure the development of education sector as the dependent variable, while public spending on the education sector and per-capita income were used as the independent variables.  This study covers 23 districts/cities in Aceh province over a period of years 2008-2012. Based on the Random Effect Model of panel data analysis, the study documented that the government spending on eduaction and percapita income positively and significantly impacted the literacy rate. However, the government spending on the education sector did not significantly influence the enrollment rate of primary school, junior high school, and senior high school. Although the percapita income have no significant impact to the primary school enrollment rate and junior high school, but it has an effect on the enrollment rate of senior high school. The results of this study imply that in order to promote the development of education in the province, the government should increase the budget allocation of income and expenditure for the education sector
PERAN BANK RAKYAT INDONESIA (BRI) UNIT KOTA GARO TERHADAP PENINGKATAN USAHATANI KELAPA SAWIT DI DESA TANAH TINGGI KECAMATAN TAPUNG HILIR KABUPATEN KAMPAR TAHUN 2014 Muhammad Ikhwan; Nursiah Chalid; Nobel Aqualdo
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Ekonomi Vol 2, No 2 (2015): Wisuda Oktober 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Ilmu Ekonomi

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Abstract

This research is conducted in subdistrict of Tapung go downstream camphor regency. Target of this research is conducted to know role of Bank Rakyat Indonesia of unit town of garo to improvement of is effort farmer of oil palm in countryside of highlands of subdistrict of tapung go downstream regency of camphor in the year 2014in this research is methodologies used by quantitative and descriptive with program spss, where sampel used by that is farmer of oil palm borrowing fund in bri, farmer of oil palm which do not borrow fund in bri. to determine sampel use formula slovin,. Technics of data collecting through interview, observation and quetioner.from analyst result of covering clean revenue analysis data, bruto analyst data, total cost analysis, role of Bank Rakyat Indonesia unit of town of garo to improvement of earnings of farmer of oil palm that is equal to rp 117.475.400,- per 2 hectare of per year (12 month) or about rp. 12.070.000,- per month. While net earning from farmer of oil palm which do not borrow fund in bank of BRI that is equal to rp 46.118.640,- per year (12 month) or about rp 3.843.220,- per month. there are difference of net earning of per 2 hectare of per year of equal to rp 71.356.536,- or equal to rp 8.226.780,-per of month.Keywords: Role Of Bank Rakyat Indonesia ( BRI), The Effort Farmer, Agricultural Economy.
PENENTUAN SETTING PARAMETER PEMBUATAN PRODUK JERIGEN 5 L PADA PROSES BLOW MOULDING DENGAN MENGGUNAKAN RESPONSE SURFACE METHODOLOGY mario sariski dwi ellianto; Erlita Pramitaningrum; Muhammad Ikhwan
ELEMEN : JURNAL TEKNIK MESIN Vol 9 No 1 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i1.191

Abstract

Dalam proses pembuatan produk jerigen 5 liter masih belum memiliki standar operasional prosedur dalam pengoperasian mesin dan memperoleh output produk yang sesuai standar. Tahap pengolahan data menggunakan metode response surface dengan tujuan mempermudah mendapatkan nilai optimal dari parameter yang berpengaruh. Penelitian dilakukan dengan menvariasikan blowing pressure, blowing time, dan idle time yang bertujuan untuk mendapatkan setting parameter dan waktu siklus yang optimal pada proses pembuatan produk jerigen 5 liter. Rancangan penelitian mengkombinasikan tiga variabel faktor yaitu blowing pressure 5, 6, dan 7 bar, blowing time 21, 22, dan 23 detik, dan idle time 7, 8, dan 9 detik dengan variabel respon yaitu Cycle Time dan Netto. Dengan metode tersebut didapatkan kondisi Cycle Time optimum sebesar 37,7623 detik dan Netto sebesar 0,2617 gram dengan kondisi optimum dicapai saat blowing pressure sebesar 5 bar, blowing time sebesar 22,2727 detik dan idle time sebesar 9 detik.
Pengaruh Waktu Aging pada Pembuatan Nano Particle Geothermal Silica (NPGS) wisnu pambudi; Muh. Wahyu Sya’bani; Warmiati Warmiati; Muhammad Ikhwan
Jurnal Teknologi Vol 10, No 1 (2022): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v10i1.199

Abstract

Pembangkit Listrik Tenaga Panas Bumi (PLTP) Dieng menghasilkan lumpur geothermal (silica scaling) yang kandungan terbesarnya adalah silika. Silica scaling tersebut akan menjadi bahan baku natrium silikat. Natrium silikat tersebut selanjutnya digunakan untuk membuat nanosilika. Tujuan penelitian ini adalah untuk mengetahui pengaruh waktu aging terhadap ukuran partikel pada pembuatan nanosilika. Metode yang digunakan untuk mensintesis nanosilika yaitu metode sol-presipitasi. Penelitian diawali dengan membuat larutan natrium silikat primer dan sekunder dan dilanjutkan pengasaman dengan asam sulfat. Kemudian dilakukan tahap aging dengan variasi waktu aging terhadap campuran yang terbentuk. Nanosilika yang dihasilkan pada penelitian ini dikarakterisasi menggunakan FTIR dan TEM. Hasil karakterisasi FTIR nanosilika menunjukkan adanya gugus siloksan (Si-O-Si). Hasil karakterisasi TEM nano partikel dengan waktu aging 1 hari, 3 hari dan 5 hari yaitu 19,31 nm; 19,67 nm dan 19,75 nm berturut-turut.
PENENTUAN SETTING PARAMETER PEMBUATAN PRODUK JERIGEN 5 L PADA PROSES BLOW MOULDING DENGAN MENGGUNAKAN RESPONSE SURFACE METHODOLOGY mario sariski dwi ellianto; Erlita Pramitaningrum; Muhammad Ikhwan
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 1 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i1.191

Abstract

Dalam proses pembuatan produk jerigen 5 liter masih belum memiliki standar operasional prosedur dalam pengoperasian mesin dan memperoleh output produk yang sesuai standar. Tahap pengolahan data menggunakan metode response surface dengan tujuan mempermudah mendapatkan nilai optimal dari parameter yang berpengaruh. Penelitian dilakukan dengan menvariasikan blowing pressure, blowing time, dan idle time yang bertujuan untuk mendapatkan setting parameter dan waktu siklus yang optimal pada proses pembuatan produk jerigen 5 liter. Rancangan penelitian mengkombinasikan tiga variabel faktor yaitu blowing pressure 5, 6, dan 7 bar, blowing time 21, 22, dan 23 detik, dan idle time 7, 8, dan 9 detik dengan variabel respon yaitu Cycle Time dan Netto. Dengan metode tersebut didapatkan kondisi Cycle Time optimum sebesar 37,7623 detik dan Netto sebesar 0,2617 gram dengan kondisi optimum dicapai saat blowing pressure sebesar 5 bar, blowing time sebesar 22,2727 detik dan idle time sebesar 9 detik.
ANALISIS BIAYA PEMBIBITAN AKASIA (ACACIA CRASSICARPA) PADA HUTAN TANAMAN INDUSTRI (STUDI KASUS DI PT. SINAR SAN JAYA, KECAMATAN KUALA KAMPAR, KABUPATEN PELALAWAN) Aluisius Bastian Poltak Sinaga; Emy Sadjati; Muhammad Ikhwan
Indonesian Journal of Agricultural Economics Vol 8, No 1 (2017)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijae.8.1.115-124

Abstract

The objectives of this research were: (1) To find out the production cost of Acacia Crassicarpa nursery in Industrial Plantation Forest in Serapung Island; and (2) Analyzing the feasibility of breeding Acacia Crassicarpa in Industrial Plantation Forests in Serapung Island. The method used was survey method, the implementation of which is observation and interview. The tools and materials used in this study were stationery, cameras, calculators, voice recorders and Microsoft Excel software version 2016. This research was conducted at PT Sinar San Jaya company located in Serapung Island, Kuala Kampar District, Pelalawan Regency Riau. This research was conducted for 3 months from January to March 2017. In the procurement of raw materials, a fee was of IDR 651,242,000. The costs required, consisting of fixed costs and variable costs. Fixed costs consist of salaries of permanent workers, costs of fertilizers and chemicals, fuel costs, oil costs and procurement costs of nursery equipment totaling IDR 2,007,756,932, while for non-fixed costs, the salaries of non-permanent workers, the cost of fertilizers and chemicals, the cost of procuring nursery equipment with a total value of IDR 187,249,790. The total production cost is IDR 2,195,006,722. While the total income is IDR 3,965,371,640 from the production of seedlings totaling 4,088,012 stems at a price of IDR 970, - per stem, with a net profit of IDR 1,770,364,918. Break Event Point value (BEP) or break-even point (income equal to cost) is IDR 2,478,712,261, -. Whereas this business feasibility is shown by the Benefit Cost Ratio (BCR) value of 1.40, which means that this business is feasible.
PEMETAAN AREAL POTENSI KONFLIK IZIN USAHA PEMANFAATAN HASIL HUTAN KAYU HUTAN TANAMAN (IUPHHK-HT) BERBASIS SISTEM INFORMASI GEOGRAFIS (SIG) PADA PT. RAPP ESTATE MANDAU Muhammad Ikhwan
Indonesian Journal of Agricultural Economics Vol 7, No 1 (2016)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijae.7.1.132-147

Abstract

Information on potential areas of conflict is very important and the information required by stakeholders in the conflict control activities plantations. Presentation of spatial data will further help provide a clear and accurate information on the location, the distance between the location and accessibility of potential areas of conflict with existing security resources in the field. This study aims to map out potential areas of conflict in the Business License Utilization of Wood Forest Plants (IUPHHK-HT) PT. RAPP Estate Saber. This study was conducted in May 2014 s.d. July 2014 and the location of this research is the Business License Utilization of Wood Forest Plants (IUPHHK-HT) PT. RAPP Estate Saber located in Siak regency, Riau Province. The method used in this research is the analysis of overlay with a predefined scoring. Research shows it is known that IUPHHK-HT PT RAPP Estate Saber area which was dominated by the level of potential conflict with an area 12499.87 ha (71.59%) for class A potential, 3047.43 ha (17.45%) for the potential class, and 1913.70 ha (10.96%) for very potential class.
PEMETAAN DAERAH RAWAN KEBAKARAN HUTAN DAN LAHAN DENGAN MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS (STUDI KASUS KECAMATAN BUKIT BATU, KABUPATEN BENGKALIS) Ajriansyah Putra; Ambar Tri Ratna Ningsih; Muhammad Ikhwan
Indonesian Journal of Agricultural Economics Vol 9, No 2 (2018)
Publisher : Fakultas Pertanian, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijae.9.2.%p

Abstract

This study aimed to map the level of vulnerability of forest and land fires in an effort to supportthe realization of forest fire prevention strategies in Bengkalis Regency area by consideringaspects of land cover, soil type, rainfall, altitude and distance of settlement. This research wasconducted in Bukit Batu District, Bengkalis. This study uses a survey method in collectingsecondary data and primary data. Data analysis was conducted by classifying each observationparameter. The results of this study indicate that the level of vulnerability of fires in District ofBukit Batu is divided into two classes, which are very high and prone to high vulnerability.Most of the sub-districts of Bukit Batu have very high vulnerability. The high vulnerability areahas an area of 27,533,611 ha (22.49%) and very high of 94,915.83 (77.51%). Determinants thatplay a major role in influencing the high level of vulnerability in a location are land cover,rainfall, and soil type.
Co-Authors . Amri . Zulkifli Agung Wijoyo Ajriansyah Putra Al-Ma’arif Aluisius Bastian Poltak Sinaga Ambar Tri Ratna Ningsih Diana Yuliastuti Elda Melwita Emy Sadjati Erlita Pramitaningrum Fitri Yuli Zulkifli Gisha Dilova I Nengah Surati Jaya Joseph Marsiano La'la Himatul Ulya Mahesa Dimyati Haryo Kasemen Malma Purnama, Sherli mario sariski dwi ellianto Muh. Wahyu Syabani Muhammad Razwin Novryan Muizul Hidayat Muzzarifa Nisrina N Nurhendra Nobel Aqualdo Nursiah Chalid Rayi Dwipanilih Risky Rianto Rizki Amalia Putri Roni Faslah Satriawan Soedari Hardjoprajitno Susan Febriantina Syahrul Ramdani Warmiati Warmiati Wida Aristanti Wisnu Pambudi