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All Journal UNM Geographic Journal Civil Engineering Journal JURNAL HUTAN TROPIS JILMATEKS Jurnal Ilmiah Mahasiswa Teknik Sipil
Muhammad Alam, Muhammad
Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Transportation

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Effective Utilization of Municipal Solid Waste as Substitute for Natural Resources in Cement Industry Rehman, Abdur; Khan, Kashif Ali; Hamid, Tayyaba; Nasir, Hassan; Ahmad, Izhar; Alam, Muhammad
Civil Engineering Journal Vol 6, No 2 (2020): February
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2020-03091467

Abstract

The aim of this study was to evaluate the municipal solid waste (MSW) composition of Peshawar city and its affective utilization for energy purpose in the cement industry. A total 14 days consecutive testing of MSW samples was conducted for winter and summer periods for the purpose of evaluation of the waste composition followed by calculating its heating values. Compliance level of MSW at source was determined which was based upon the questionnaire distribution followed by the financial analysis and feasibility evaluation of the project. The results revealed that the average waste composition of the samples consists of organic waste contents (20.72%), combustible items (37.86%), readily saleable items (20.95%) and other miscellaneous waste items (20.46%). Moreover, the samples were then tested for the evaluation of calorific value and it was found that the heating value of MSW is recorded up to 35513 KJ/Kg whereas; the value for coal is around 38000 KJ/Kg. These findings revealed that the replacement of coal by MSW may be more efficient and might be effectively utilized in the production of cement as the energy production of MSW and coal is nearly same. In addition, the utilization of MSW as a replacement of coal has a great potential of enhancing the service life of the landfills. Besides, NPV analysis of this study revealed that the project is worthwhile to be implemented as it shows high returns regarding financial aspects.
Differences Mastery Of Geography Concept Of Students Who Are Teached With Phet-Based Computer-Based Models And Students Are Teached Conventional On Basic Material Know The Earth (Experimental Study At Man I Kendari Alam, Muhammad; Nursalam, La Ode; Amaluddin, La Ode
UNM Geographic Journal Volume 1 Nomor 1 September 2017
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (767.392 KB) | DOI: 10.26858/ugj.v1i1.5287

Abstract

This research aim to know differences mastery of geography concept of students who are teached with phet-based computer-based models and students are teached conventional on basic material know the earth at MAN I Kendari. The population of this study is All students class X MAN 1 Kendari enrolled in the 2015/2016 school year consisting of 3 classes with the number 86. The sample of this study is class X IPS2 and X IPS3 selected by using Barlet test that the results of all classes are homogeneous to the level Α = 0.05, indicated by the value of χ2 hit = 274.59 <χ2 = 5.99 Analysis of data in this study through descriptive and inferential analysis From the analysis of descriptive pre-test the experimental class obtained the maximum value of 53.3 and the minimum value of 13.3, the average value 32.82 and standard deviation of 10.27, while the control class pre-test obtained a maximum value of 50 and a minimum value of 6.6, the average value 29.11 and deviation standard 10.57. Post-test experimental class obtained maximum value 93.3, minimum value 30.6, average value 70.23 and standard deviation 15.19; While the control class post-test obtained a maximum value of 90, a minimum value of 25; Average value of 61.42 and standard deviation of 15.43. From inferential statistical results to test the hypothesis shows that hypothesis I, obtained the value -t (1-α / 2) / dk <thit <t (1-α) t (-0.975) (54) -1.331 <2.00, (interpolation) With α = 0.05 this shows no significant difference between the mean pre-test of the experimental class and the control class pre-test. In the second hypothesis, the value of t (0.975) (54) 1.673 (2.153> 1.673) indicates that the average post-test grade of the experimental class is better than the average post-test value of the control class. Hypothesis III, obtained the value of thit> t (0.975) (54) 1.673 (1.673 <1.792) which means that there is a significant difference between the gain value of the experimental class and the control class gain. This means that computer-assisted learning is more effective than conventional learning in an effort to improve the mastery of student learning concepts of class X on the subject of knowing the earth with 95% confidence level (α = 0.05).
Prediction of Rutting in Flexible Pavements using Finite Element Method Asim, Muhammad; Ahmad, Mahmood; Alam, Muhammad; Ullah, Shahid; Iqbal, Muhammad Junaid; Ali, Shahid
Civil Engineering Journal Vol 7, No 8 (2021): August
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2021-03091727

Abstract

In this research study three dimensional (3D) finite element analysis are performed on a flexible pavement section for different material properties, temperature and loading conditions. The main objective of this study is to predict the rut depth under different conditions of temperature, loadings and material properties. Three dimensional finite element model of flexible pavement is developed using ABAQUS to predict rut depth. The pavement system is assumed to be an elastic multi-layers system with each layer being isotropic, homogeneous with specified Resilient Modulus (Mr) and Poisson ratio (µ). With the exception of the bottom subgrade layer, each layer is extending to an unlimited horizontal extent and has a finite thickness. The pavement system analyze in this study for a cyclic load of 10000 cycles taken as 0.01sec per cycle. Standard Axle Load (ESAL) of 18 kips (80 kN) loading on an axle with a dual set of tires, the wheel spacing is 13.78 in (350 mm) with a tire contact pressure of 100 psi (0.69 MPa) is used. After performing a series of analysis the results showed that rut depth increases with increase in temperature and loading and decreases by using base stabilizer. Doi: 10.28991/cej-2021-03091727 Full Text: PDF
UJI PATOGENISITAS DAN IDENTIFIKASI CENDAWAN PENYEBAB BUSUK AKAR PADA POHON KETAPANG KENCANA (Terminalia mantaly) Alam, Muhammad; Firmansyah, Firmansyah; Taufiqurrozif, Hafiz; Basrudin, Basrudin
Jurnal Hutan Tropis Vol 12, No 3 (2024): Jurnal Hutan Tropis Volume 12 Nomer 3 Edisi September 2024
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v12i3.20557

Abstract

Root rot disease attacks various types of forest plants, such as albizia, acacia, agathis, and pine. Root rot attack was also found in ketapang Kencana trees which caused the collapse of the tree and harmed the people around it. This study aims to test the pathogenicity and identify the type of fungus that causes root rot disease in ketapang Kencana plants. The research method included pathogenicity testing by inoculating fungal isolates and identification of species using morphological characteristics of the fungus. The fungus that was identified was Fusarium sp. and Botryodiplodia sp.. Botryodiplodia sp. identified as a pathogenic fungus that is suspected of causing root and stem rot symptoms in ketapang kencana plants because it caused an attack on the test sample in the form of albizia wood. Botryodiplodia sp. isolate has macroscopic characteristics of white colonies which then turn gray, with a texture resembling cotton, and has microscopic characteristics of verticillate conidiophores, oval conidia with two tapered ends, hyaline hyphae which later turn dark.
Analisa Angkutan Sedimen di Sungai Tello, Kota Makassar Kadli, Muhammad Ansal; Alam, Muhammad; Musa, Ratna; Mallombasi, Ali; SAR, Mas'ud; Azis, Andi Adillah Firstania
Jurnal Ilmiah Mahasiswa Teknik Sipil Vol. 7 No. 1 (2025): JILMATEKS (Jurnal Ilmiah Mahasiswa Teknik Sipil) Januari 2025
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/8v1gtm95

Abstract

Proses sedimentasi yang terjadi terus-menerus yang menyebabkan pendangkalan pada badan sungai yang menyebabkan penurunan kapasitas pengaliran sungai. Partikel sedimen yang terbawa oleh arus aliran yang mengakibatkan pendangkalan. Penelitian ini bertujuan untuk menganalisa pengaruh debit aliran terhadap angkutan sedimen serta menganalisa besar angkutan sedimen yang terjadi pada aliran sungai Tello.  Metode yang dilakukan pada penelitian ini yakni observasi pengukuran langsung di sungai Tello untuk mendapatkan data-data morfologi sungai dan sampel sedimen pada dasar sungai (bed load). Sampel sedimen selanjutnya diuji pada laboratorium untuk mendapatkan nilai berat jenis butiran sedimen (Gs) serta ukuran diameter sedimen.  Data yang telah diperoleh baik itu dari pengukuran langsung serta data hasil pengujian sampel di laboratorium kemudian di analisis menggunakan rumus empiris Einstein dan Meyer Peter Muller. Berdasarkan hasil perhitungan untuk memperkirakan angkutan sedimen yang terjadi di sungai Tello, Kota Makassar, maka digunakan nilai rata-rata dari dua metode tersebut sebagai dasar untuk memperkirakan angkutan sedimen. Dari hasil analisis diperoleh angkutan sedimen rata-rata untuk metode Einstein sebesar 0,107 kg/det, dan nilai angkutan sedimen rata-rata untuk metode Meyer Peter Muller sebesar kg/det. Semakin besar debit aliran sungai, maka cenderung mengangkut sedimen lebih banyak. Debit aliran yang tinggi mengakibatkan kecepatan aliran meningkat, yang cenderung mengangkut sedimen lebih efisien baik dalam jumlah maupun ukuran sedimennya.
Co-Authors AA Sudharmawan, AA Ahmad, Izhar Ahmad, Mahmood Ali, Shahid Asim, Muhammad Azis, Andi Adillah Firstania Firmansyah Firmansyah Hamid, Tayyaba Iqbal, Muhammad Junaid Kadli, Muhammad Ansal Khan, Kashif Ali La Ode Amaluddin, La Ode La Ode Nursalam, La Ode Mallombasi, Ali Musa, Ratna Nasir, Hassan Rehman, Abdur SAR, Mas'ud Taufiqurrozif, Hafiz Ullah, Shahid