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Muhammad Muhammad
Universitas Malikussaleh
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation

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PERENCANAAN DAN PEMBUATAN ALAT PENGERING BIJI COKLAT DENGAN WADAH PUTAR MENGGUNAKAN PEMANAS LISTRIK Meriadi Meriadi; Selamat Meliala; Muhammad Muhammad
Jurnal Energi Elektrik Vol 7, No 2 (2018): Jurnal Energi Elektrik Volume 7 Nomor 2
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jee.v7i2.1061

Abstract

Dalam proses pengeringan biji-bijian selama ini para petani masih menggunakan sistem manual yaitu menjemur dibawah matahari, sehingga menghabiskan waktu beberapa hari untuk mengeringkan biji-bijian tersebut. Tujuan dari pembuatan tugas akhir ini adalah membuat mesin pengering yang bisa mengeringkan biji-bijian tersebut tanpa perlu menghabiskan banyak waktu. Banyak data yang harus diperoleh dalam penyusunan tugas akhir ini yaitu menggunakan metode literature, metode tanya jawab, dan metode experimen. Hasil yang ingin dicapai adalah mesin pengering ini bisa bekerja secara optimal sehingga menghasilkan hasil pengeringan yang baik. Maka hasil dari pengujian mesin pengering biji cokelat kapasitas 1 kg dengan suhu maksimal pemanas listrik adalah 600, bisa mengeringkan biji cokelat tersebut dalam  waktu lebih kurang 2 jam.
Pembuatan Pupuk Organik Cair dari Limbah Sayuran dengan Menggunakan Bioaktivator EM4 Susi Yanti; Ishak Ibrahim; Masrullita Masrullita; Muhammad Muhammad
Jurnal Teknologi Kimia Unimal Vol 11, No 2 (2022): Jurnal Teknologi Kimia Unimal - Nopember 2022
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jtku.v11i2.9466

Abstract

Pembuatan pupuk organik cair khususnya dari limbah sayuran denganpenambahan bio aktivator EM4 (Effective Microorganisme) bertujuan untuk menentukan pengaruh waktu pembuatan terhadap kandungan Nitrogen (N),Phosfor (P2O5), dan Kalium (K2O) dalam pupuk organik cair, serta menentukan pengaruh bio aktivator EM4 terhadap kandungan N, P, K. Metode pembuatan pupuk organik cair ini yaitu limbah sayuran seperti  sawi putih, sawi hijau, kubis dan wortel yang banyak mengandung air dihancurkan sebelum difermentasikan. Kemudian bio aktivator EM4 disiapkan untuk penambahan dalam limbah sayuran yang sudah dikecilkan ukurannya. Limbah sayuran dimasukkan ke dalam wadah, dan larutan bio aktivator EM4 kemudian dimasukkan ke dalam wadah secara merata. Pengambilan sampel dilakukan berdasarkan variasi waktu 8 hari, 10 hari, 12 hari, 14 hari dan 16 hari serta variasi penambahan jumlah bio aktivator EM4 sebanyak 12 ml, 18 ml, dan 24 ml. Hasil penelitian yang terbaik pupuk organik cair terdapat pada penggunaan volume 24 ml dengan kandungan unsur hara makro nitrogen 0,71% fosfor 0,47% pada hari ke 16 sedangkan nilai terbaik kalium 0,30% pada hari ke 8 dengan volume 12 ml. Pupuk organik cair yang dihasilkan sudah memenuhi baku mutu  SNI : 19-7030-2015 (Badan Standarisasi Nasional, 2015). Volume bio aktivator EM4 sangat berpengaruh terhadap kandungan N, P, dan K, dikarenakan semakin banyak volume bio aktivator EM4 maka kadar N, P, juga akan semakin tinggi.
Sense Of Place On Tourist Attractions In Central Aceh Regency Rinaldi Mirsa; Muhammad Muhammad; Eri Saputra; Ayike Kusprasetya; Rizki Alamsyah
International Journal of Engineering, Science and Information Technology Vol 2, No 4 (2022)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v2i4.278

Abstract

Sense of place is related to the relationship between human reactions and space that affects expression and emotion in response to environmental conditions in a place. Takengon City has many tourist destinations, including the Al-Kahfi Pantan Terong Peak tour, Batu Susun tourism, and Bebalen Cafe Pantan Terong which support a wealth of natural potential and is the main attraction for tourist visitors located in the Ulu Nuih Village area, Bebesen District. The purpose of this research is to examine the sense of place in the Ulu Nuih Village Tourism area, Bebesan District through the elements that form the place, namely visual characters, activity, and images. Then find out the level of sense of place contained in each tour and what elements are the strongest in the tourist area. The research uses the Behavioral Mapping method to describe the behavior in the map, behavior, and shows the relationship between the behavior and a specific design and also uses quantitative methods to collect data using research instruments, quantitative/statistical data analysis is used to examine a sample. The concept is described in the variables of its constituent elements. The results showed that the thing that most influenced the sense of place was Landmark a marker of tourist sites, sequences, and satisfaction with the overall building arrangement of the tour that was neatly arranged, and organized the environment was maintained. Satisfaction with tourists was an influential variable in tourism in Ulu Nuih Village, Bebesen District. While the thing that is at the lowest level is resilience where most of the visitors are only present to capture the moment and then leave the tourist location.
Implementation of Geographic Information System for Tourist Locations and Lodging Services in Lhokseumawe City Based on Android Misbahul Jannah; Muthmainnah Muthmainnah; Safwandi Safwandi; Mochamad Ari Saptari; Muhammad Muhammad; Rahmad Wahyudi; Mirza Farhan
International Journal of Engineering, Science and Information Technology Vol 2, No 4 (2022)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v2i4.320

Abstract

The advancement of information technology is now increasingly widespread and very rapidly growing so that it can help people to enjoy the various conveniences that have been produced by this technology. One aspect of technology currently developing rapidly is mobile technology on smartphone devices (smartphones). This android-based geographic information system application is one of the results of these technological developments, which have the benefits and uses that are needed in this day and age. So with the development of the world of technology, people prefer the way of convenience and efficiency, for example, by utilizing the sophistication of smartphones. Implementing the Geographic Information System (GIS) for tourism and lodging services in Lhokseumawe aims to build tourism applications and lodging services in Lhokseumawe based on Android and implement Google services. Maps Application Programming Interface (API) to facilitate tourists in obtaining information on mapping the location of tourist attractions and lodging, routes, and tourist support facilities in Lhokseumawe City. The method used is a waterfall process model. Implementing the Lhokseumawe Tourism Application and lodging services using Javascript programming with Android Studio, MySQL database, and maps sourced from the Google Maps API. The result is an Android-based Lhokseumawe City Tourism and lodging service application that helps make it easier for tourists to obtain information about tourist attractions, lodging, and routes from their current location to the desired tourist and lodging locations in Lhokseumawe City with the help of the Global Positioning System (GPS). Tourist information and lodging services are entirely related only to data entered into the database server. The results of this application display a list and location of tourist and lodging services as well as the shortest route to the nearest tourist or inn to the user's location point. It is also hoped that this system can be developed to produce a better system than the previous one.
Analysis of the Mechanical Properties of Teak Sawdust-Reinforced Composite Boards Affected by the Alkalization Process Reza Putra; Muhammad Muhammad; T Hafli; Nurul Islami; Muhammad Nugraha P; M Irsyad K
International Journal of Engineering, Science and Information Technology Vol 2, No 4 (2022)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v2i4.303

Abstract

The development of the teak wood processing industry is growing rapidly, especially in the Aceh area. Allows a lot of waste to be generated. This research was conducted by utilizing sawn wood waste into particle boards. To test the physical and mechanical properties of particleboard using a matrix of teak waste and SHCP 2668 WNC resin with a ratio of 60: 40, and variations in treatment (NaOH) 2,5, 5, and 7,5% in immersion for 2 hours. Then the particleboard is compressed using a hot press machine at a temperature of 150˚C for 20 minutes, and a pressure of 50 kg/cm2. Then tested according to SNI 03-2105-2006 standards, namely density, thickness expansion, moisture content, elasticity, and modulus of fracture. The results of the particle board test on the physical and mechanical properties test, namely the density yielded the best value for the 5% (NaOH) treatment with a value of 0.854 gr/cm3, the best water content test with 2.5% (NaOH) treatment with a value of 4.563 %, viscous development with treatment (NaOH) 5% with a value of 7.573%, the best elasticity test on treatment (NaOH) 2.5% with a value of 2.470 kgf/cm2, and the best fracture modulus test on treatment (NaOH) 7.5% with a value of 48.611 kgf/cm2 declared to meet the standard requirements of SNI 03-2105-2006. With alkaline treatment, particleboard gives a relatively good value compared to no treatment.
Preparation and Characterization of Activated Carbon Made from Robusta Coffee Skin (Coffea Canephora) Raudhatul Raihan; Adi Setiawan; Lukman Hakim; Muhammad Muhammad; Muhammad Arif; Hadi Hosseiniamoli
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 2 (2020): Jurnal Rekayasa Kimia & Lingkungan (December, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (575.116 KB) | DOI: 10.23955/rkl.v15i2.17618

Abstract

Indonesia is one of the coffee-producing countries where production tends to increase from year to year. Currently, residuals from coffee-fruit processing such as coffee-skin and husks are thrown away without any use and this biomass residual contains several toxic chemicals such as alkaloids, tannins, and polyphenols. One of potential uses of coffee-industry by-product is to make activated carbon (ACs), which is made through a carbonation process and followed by an activation process. In this study, chemical activation was carried out using chemical activators ZnCl2 and NaOH. The purpose of this study is to prepare and investigate the characteristics of chemically activated coffee skin bio-char focusing on the surface properties and iodine adsorption capacity. Prior to carbon activation, a purpose built pilot-scale reactor was fabricated and tested at temperatures of 400 °C and 500 °C. The difference in carbonation temperature and variations in activator concentration alter the absorption properties. The results showed that the coffee-skin pyrolyzed at 500 °C and activated by 2% NaOH solution exhibits the highest absorption value of 720.2 mg/g. Lower absorption values were observed in any ZnCl2 activator samples. SEM-EDS analysis result suggests significant changes in composition of the ACs before and after activation. Most of impurities are gone during activation and washing. The value of C atoms increases and the pores structure of the activated carbon are expanding showing suitable properties for adsorbent.
Methyl Orange Absorption Using Chitosan from Shrimp Skin as an Adsorbent Meriatna Meriatna; Sanda Mulia Utari; Rizka Mulyawan; Muhammad Muhammad; Zulmiardi Zulmiardi
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.431

Abstract

In the coloring process, the textile industry generally uses synthetic (artificial) dyes, methyl orange (MO). In this study, the adsorption of methyl orange (MO) dye with chitosan was investigated in a series of batch laboratory studies. The adsorption equilibrium study used a MO solution with a concentration of 10 to 50 mg/L with an adsorbent weight of 3 g put into an Erlenmeyer and shaken until the adsorption reached an equilibrium condition. Meanwhile, the adsorption kinetics used a MO solution with an initial concentration of 10 and 20 mg/L with a volume of 100 mL with an adsorbent weight of 3 g and the solution was adjusted to pH 2. Effective operating parameters such as pH, initial concentration of dye (C0) and contact time at adsorption has been investigated. The results showed that the adsorption capacity of methyl orange (MO) dye from chitosan increased with an increasing acid content, and it was found that a solution of pH 2 was the optimal pH value for MO adsorption. The adsorption parameters for the Langmuir and Freundlich isotherms were determined by nonlinear regression and the equilibrium data were best explained by the Langmuir isotherm model, this was indicated by the high value of the correlation coefficient (R2), which was 0.9595. The maximum adsorption capacity was 0.1297 mg/g. Adsorption kinetics can be successfully applied to pseudo second-order kinetic models. The pseudo second-order model results show that the adsorption process is controlled by chemical sorption (chemisorption).
Synthesis and Characterization of Chitosan-Pectin-Citric Acid-Based Hydrogels for Biomedical Applications (Primary Wound Dressings) Suryati Suryati; Rizka Mulyawan; Sulhatun Sulhatun; Muhammad Muhammad; Nikmat Wanda
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.447

Abstract

This study aims to analyze the processing of chitosan-pectin biocomposite hydrogel with the addition of citric acid to improve the quality of the biocomposite for primary wound dressing applications. The method is printing the biopolymer solution in a glass mold, then drying at 50oC. Chitosan 90.2% DD and pectin dissolved in 1% acetic acid with a ratio (w/w) of 50:50. The two ingredients were mixed using a magnetic stirrer at room temperature for 30 minutes until completely dissolved, then added citric acid crosslinking agent with various concentrations of 2,4, 6,8,10 (%). The test results for the characteristics of the chitosan-pectin-acid biocomposite Citrate obtained the best thickness in the composition variation (50:50:8) of 0.31 mm. The analysis results of the best absorption of the chitosan-pectin-citric acid biocomposite on the composition variation (50:50:6) were 185%. In the swelling analysis of the chitosan-pectin-citric acid biocomposite, the variation in composition (50:50:10) was 403%. The tensile strength test results of the chitosan-pectin-citric acid biocomposite decreased with the addition of citric acid, the best obtained was 20.76 MPa, and the best elongation was 76.0%. Test results for the functional group of the chitosan-pectin-CaCl2 biocomposite for the presence of O-H, C-H, N-H bonds in the fact of O-H, C-H, N-H bonds at a wavelength of 4000-2500 cm-1, C=O, C=N, C=C at a wavelength of 2000 -1500, and the specific absorption of the chitosan-pectin-citric acid biocomposite 400-1400 cm-1 indicates that the resulting membrane tends to be polar, hydrophilic and environmentally friendly because it can be degraded. Based on the expected test results, it was shown that the chitosan-pectin-CaCl2 biocomposite has the potential to be applied as an ideal primary wound dressing for wound healing and protection.
PEMBUATAN BRIKET CANGKANG KELAPA SAWIT MENGGUNAKAN VARIASI JENIS DAN PERSENTASE PEREKAT TEPUNG TAPIOKA DAN TEPUNG BERAS Cut Milya; Eddy Kurniawan; Lukman Hakim; Rozanna Dewi; Muhammad Muhammad
Chemical Engineering Journal Storage (CEJS) Vol 3, No 4 (2023): Chemical Engineering Journal Storage (CEJS) - Agustus 2023
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v3i4.9913

Abstract

Sumber energi alternatif yang banyak dikembangkan dan diteliti saat ini adalah bahan bakar biomassa limbah pertanian. Biomassa seperti cangkang kelapa sawit dapat menjadi sumber bahan baku briket sebagai salah satu energi alternatif pengganti bahan bakar fosil (minyak bumi). Penelitian Pembutan Briket Arang dengan Biomassa sudah pernah dilakukan oleh beberapa peneliti sebelumnya, dengan menggunakan biomassa dan jenis perekat yang berbeda, yang belum pernah dilakukan adalah Pembuatan Briket Arang dari Cangkang kelapa Sawit Menggunakan Variasi Jenis dan Persentase Perekat Tepung Tapioka dan Tepung Beras. Tujuan penelitian untuk menganalisa jenis dan persentase perekat yang tepat untuk membuat briket arang cangkang kelapa sawit agar menghasilkan briket dengan kualitas yang baik sesuai standar meliputi kadar air, kadar abu, dan nilai kalor. Proses pembuatan briket meliputi proses karbonisasi, pencampuran biomassa dengan perekat, pencetakan, pengeringan, dan uji kualitas briket yaitu kadar air, kadar abu dan nilai kalor. Hasil penelitian menunjukkan bahwa briket arang cangkang kelapa sawit sudah memenuhi standar. Pada briket perekat tepung tapioka  kadar air rata-rata sebesar 2.35%, kadar abu sebesar 5.06%. Sedangkan pada briket perekat tepung beras kadar air rata-rata sebesar 2.74%, kadar abu 5.50%. Nilai kalor dari briket arang menggunakan perekat tepung tapioka dan tepung beras dengan persentase 4% masing-masing sebesar 6930.11 kal/gr dan 6922.22 kal/gr.  
LAMP MODIFICATION FROM HPLN TO LED TECHNOLOGY FOR SAVING ELECTRICAL ENERGY IN STREET LIGHTING Rosdiana Rosdiana; Arya Wiyangga Pradana; Muhammad Muhammad; Mutammimul Ula
Multica Science and Technology Vol 3 No 1 (2023): Multica Science and Technology
Publisher : Universitas Mulia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47002/mst.v3i1.423

Abstract

Energy Efficiency is a business that is carried out with the aim of reducing the amount of energy needed, in using an equipment or even an energy-related system. In its development in the field of lighting, LED (Light Emitting Diode) lamps are now starting to be used as lighting lamps for homes, industries and factories. In Indonesia, the use of LED lamps in lighting is still rarely used, because the price of LED lamps is quite expensive when compared to ordinary lamps. With the saving of electric power through the use of LED lights, the problem of operational costs will be easy to overcome. Indeed, the price of this LED lamp is a little expensive, but with the research on the comparison of the use of this LED lamp with HPL-N type lamps, the industry will consider using this LED lamp with a generally accepted application method to reduce energy expenditure. The previous conditions for Jalan Dolok Merawan used HPLN 250 Watt lamps with a handlebar angle of 24,920 ornaments, the resulting light intensity was 2189 Candela, the intensity of the resulting lighting was 97.94 Lux and has now been changed to make it more optimal to use 120 Watt LED type lights, the height of the pole used is 4 meterss with an ornament handlebar angle of 24.920, light intensity of 1242 Candella, lighting intensity of 55.33 lux. The results of this illumination intensity are in accordance with the standard determined by BSN SNI regarding Collector road class 3-7 Lux. The results achieved after the process of modifying HPL-N lamps to LEDs are that they can reduce the use of electrical energy in the lighting system and achieve efficiency for electric power consumption so that they can provide added value to the company in reducing the company's operational costs.
Co-Authors Adi Setiawan Andik Bintoro Ar Razi Armelia Dafrina Arya Wiyangga Pradana Asrillah Asrillah Ayike Kusprasetya Badriana, Badriana Bakhtiar Chaniago, Bakhtiar Basuki Wasis Bustami Bustami Cut Milya Dela Andriani Eddy Kurniawan Eri Saputra Fasdarsyah Fasdarsyah Fidyati, Fidyati Hadi Hosseiniamoli Hafizh Al Kautsar Aidilof Ishak Ibrahim Izzati Farhana Lukman Hakim M Irsyad K M R F Rahman Masrullita Masrullita Meriadi Meriadi Meriatna Mirza Farhan Misbahul Jannah Mochamad Ari Saptari Mudi Hafli Muhammad Arif Muhammad Fauzan Muhammad Nugraha P Muhammad Rumiza Mulyawan Mulyawan munirul ula Mutammimul Ula Muthmainnah S.Kom, M.Kom, Muthmainnah Nia Afriani Nikmat Wanda Nurul Islami Rahmad Wahyudi Raudhatul Raihan Rinaldi Mirsa Riza Fitri Rizal S.Si., M.IT, Rizal Rizka Mulyawan Rizki Alamsyah Rosdiana Rosdiana Rozanna Dewi Safwandi Safwandi Sanda Mulia Utari Selamat Meliala Sulhatun Sulhatun Suryati Suryati Susi Yanti T Hafli Zulfahmi Zulfahmi Zulmiardi, Zulmiardi