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All Journal Jurnal Kesehatan Lingkungan indonesia KONSELI: Jurnal Bimbingan dan Konseling (E-Journal) Jurnal Hasil Penelitian Industri JURNAL SERAMBI ILMU SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL PENDIDIKAN TAMBUSAI SCAFFOLDING: Jurnal Pendidikan Islam dan Multikulturalisme Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat El-Mujtama: Jurnal Pengabdian Masyarakat International Journal of Social Service and Research Makara Journal of Technology JURUTERA (Jurnal Umum Teknik Terapan) Analysis : Journal of Education Jurnal Komprehenshif El-Mujtama: Jurnal Pengabdian Masyarakat Jurnal Maisyatuna JURNAL REKAYASA KIMIA & LINGKUNGAN
Mahidin Mahidin
Jurusan Teknik Kimia Universitas Syiah Kuala, Jl. Syech Abdurrauf, No. 7, Banda Aceh - Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Kegiatan Pengembangan Minat dan Bakat pada Anak-anak dalam Kegiatan Keagamaan di Desa Lalang Kec. Tanjung Pura Kab. Langkat Mahidin, Mahidin; Aulia, Mia; Hrp, Muhammad Royhan; Angi, Nur Fadila; Nurbaini, Nurbaini; Nuraida, Nuraida
El-Mujtama: Jurnal Pengabdian Masyarakat  Vol. 4 No. 2 (2024): El-Mujtama: Jurnal Pengabdian Masyarakat
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/elmujtama.v4i2.964

Abstract

Every child has different potential, interests, and talents. A gifted child whose potential is optimized and well-stimulated can become one of the quality human resources that a country possesses, compared to a child who does not receive appropriate stimulation. Stimulation refers to various stimuli, such as play opportunities, learning facilities, or materials (such as stories or readings), which can trigger a child to learn or process teachings. Optimal is the highest condition in which someone or something can be done without damaging the existing elements. Potential is specific things that exist in a child, which appear more compared to their peers. Interest is a strong drive for someone to do everything they desire. Meanwhile, talent is a fundamental quality, skill, and disposition that is present from birth. Talent itself can be interpreted as a person's basic ability to learn in a relatively short time compared to others, yet the results are actually better. In short, this is the potential that someone has as a natural gift from birth. The purpose of the research is to optimize the potential, interests, and talents of children in Lalang Village for the future progress of human resources, to understand and provide solutions so that children in Lalang Village have space, direction, and a place to shape their character so that they can understand what potential they have and it is very important for their future. This research contains the reasons and processes for optimizing the potential, interests, and talents of children in Lalang Village. 
Adsorption of Mercury (II) Ions from Water Using Carbon-Based Monolith with Manganese Oxide Filler Kusuma, Debby Widya; Mahidin, Mahidin; darmadi, darmadi
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i2.27747

Abstract

Mercury is harmful to humans and the ecological environment. The adsorption process is known as an effective method for removing heavy metals. This research is devoted to developing new adsorbents based on carbon materials to remove metal ions Hg(II) with carbon-based monolith adsorbents without and with manganese oxide fillers (KM and KMM). The results of adsorption efficiency, adsorption kinetics, and isotherm models were made in a batch system with varying concentrations of mercury solution from 2 mg/L to 6 mg/L with adsorbents without and with manganese oxide fillers (KM and KMM). The highest removal efficiency reached 96% on KMM and 47% on KM. The adsorption isotherm of Hg(II) ions corresponds to the Freundlich model, with intensity and volume constants obtained respectively 0.042 and 1.347 L/mg on KM adsorbents, while on KMM adsorbents the intensity and volume constants obtained are 0.291 and 2.079, respectively. L/mg. These results indicate that physical adsorption occurs more dominantly than chemical adsorption. The adsorption of Hg(II) ions was in accordance with the pseudo-first-order adsorption kinetics, with the adsorption capacity and rate constant on the KM adsorbent obtained were 0.0505 mg/g and 0.0072 g/mg, while the adsorption capacity and rate constant for the KMM adsorbent were on KM adsorbents obtained were 0.0848 mg/g and 0.0239 g/mg.
Kapasitas Adsorpsi Bentonit terhadap Sulfur dan Merkuri secara Simultan pada Pembakaran Batubara Yusran, Alhamidi; Supardan, Muhammad Dani; Mahidin, Mahidin
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 4 (2015): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v10i4.3309

Abstract

Pemanfaatan batubara sebagai sumber energi melalui pembakaran langsung akan menghasilkan emisi gas, partikulat trace metal (logam berat) dan abu (terutama abu terbang) yang akan mencemari udara. Penanganan terhadap pencemaran tersebut merupakan hal yang sangat mendesak. Dalam studi ini ditawarkan penyelesaian secara simultan terhadap emisi SOx dan partikulat logam berat merkuri pada pembakaran batubara peringkat rendah yang ada di Aceh melalui penyerapan menggunakan bentonit alam yang juga terdapat di Aceh (juga di daerah lain di Indonesia). Penggunaan bentonit dapat mengurangi emisi gas SO2 dan partikulat trace metal Hg dalam gas buang dan abu terbang. Bentonit dapat meningkatkan afinitas atau gaya tarik menarik antara Hg dan mineral-mineral dalam bentonit dan sekaligus menurunkan afinitas Hg terhadap S atau SO2. Konsentrasi bentonit dalam kajian ini, tanpa kalsinasi dan langsung dicampur dalam batubara, adalah 0 16% dan temperatur pembakaran adalah 700 900oC. Hasil yang didapat menunjukkan bahwa kondisi maksimum penyerapan sulfur dan/atau SO2 serta merkuri terjadi pada kandungan bentonit 6% dan temperatur 700oC.
Karakteristik Pembakaran Beberapa Jenis Biomassa dalam Fluidized Bed Boiler Mahidin, Mahidin; Hamdani, Hamdani; Muhtadin, Muhtadin; Faisal, Muhammad; Mahyuddin, Mahyuddin
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 1 (2014): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v10i1.2167

Abstract

Pembakaran biomassa dalam rangka memproduksi energi termal untuk menghasilkan utilitas lain dapat dilakukan dengan mengkonversi energi tersebut ke bentuk energi lain. Boiler dengan unggun terfluidisasi dipilih sebagai teknologi konversi energi termal menjadi energi listrik, karena kukus yang diproduksi dapat digunakan untuk menggerakkan turbin yang dikopling dengan generator listrik. Unit dimana proses pembakaran berlangsung, yaitu ruang bakar dan freeboard dipilih sebagai target pengamatan untuk mengevaluasi kinerja boiler tersebut. Hasil pengamatan terhadap pembakaran tiga jenis biomassa, serpihan kayu ketam, kulit pinang dan ranting kayu kering, memperlihatkan bahwa masing-masing jenis biomassa memiliki karakteristik pembakaran tersendiri. Temperatur pembakaran maksimum untuk serpihan kayu ketam dan ranting kayu kering didapatkan pada waktu pembakaran 30 detik, sementara untuk kulit pinang pada 20 detik. Hasil yang sangat menarik adalah ditemukan bahwa temperatur maksimum dapat ditingkatkan dengan mengubah sistem pengumpan bahan bakar. Sistem pengumpan antara memberikan temperatur maksimum yang lebih tinggi dibanding dengan sistem pengumpan biasa.
Modeling and Simulation on NOx and N2O Formation in Co-combustion of Low-rank Coal and Palm Kernel Shell Mahidin, Mahidin; Gani, Asri; Khairil, Khairil
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 2 (2012): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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

Abstract

NOx and N2O emissions from coal combustion are claimed as the major contributors for the acid rain, photochemical smog, green house and ozone depletion problems. Based on the facts, study on those emissions formation is interest topic in the combustion area. In this paper, theoretical study by modeling and simulation on NOx and N2O formation in co-combustion of low-rank coal and palm kernel shell has been done. Combustion model was developed by using the principle of chemical-reaction equilibrium. Simulation on the model in order to evaluate the composition of the flue gas was performed by minimization the Gibbs free energy. The results showed that by introduced of biomass in coal combustion can reduce the NOx concentration in considerably level. Maximum NO level in co-combustion of low-rank coal and palm kernel shell with fuel composition 1:1 is 2,350 ppm, low enough compared to single low-rank coal combustion up to 3,150 ppm. Moreover, N2O is less than 0.25 ppm in all cases.Keywords: low-rank coal, N2O emission, NOx emission, palm kernel shell
A Comparison of Energy Profile between Castilla Leon, Spain and Aceh, Indonesia Mahidin, Mahidin; Khairil, Khairil; Martin, Carmen; Villamanan, Miguel A.; Segovia, Jose J.; Chamorro, Cesar R.
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 4 (2010): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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

Abstract

A comparative study on energy production and consumption between Aceh, Indonesia and Castilla Len, Spain has been conducted. Analysis was carried out on the statistical data such as population, GDP, energy production and energy consumption. Some interesting results were obtained. An average energy production during 2001 2004 in Aceh is up to 28 times of the average energy production in Castilla Len; however, the average energy consumption during those four years is only 16.74% of the average energy consumption of Castilla Len. Aceh's average GDP from 2001 to 2004 is 3,357.16 million Euros, stands at only 8.15% of Castilla Len's average GDP about 41,175.75 million Euros.Keywords: economic growth, final energy consumption, GDP, primary energy production
The Function of Content Mastery Services in Fostering Students' Interest in Learning in Senior High School Susmita Br. Siregar, Tiya Modi; Mahidin, Mahidin
Scaffolding: Jurnal Pendidikan Islam dan Multikulturalisme Vol. 5 No. 2 (2023): Pendidikan Islam dan Multikulturalisme
Publisher : Institut Agama Islam Sunan Giri (INSURI) Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/scaffolding.v5i2.2893

Abstract

The purpose of this research is to find out how the content mastery service of SMA Muhammadiyah 09 Kualuh Hulu helps students become more interested in learning. Students' study habits are developed due to this learning, and if they already have good study habits, they must be maintained. This research uses qualitative methods with a Case Study approach. The sample of this study consisted of 36 students of SMA Muhammadiyah 09 Kualuh Hulu. The data collection instruments of this research are in-depth interviews and observation. The data analysis technique used is data reduction; data reduction is a thinking process that requires a depth of insight; after reducing the data, the data is described, or what is often called data presentation; after the data is processed properly, the researcher concludes. The data validity test technique in this study uses triangulation by asking the same thing with different sources. The results showed that the content mastery services provided positively impacted students' interest in learning. This result is supported by the assessment given to students in the written test group every time they complete the material mastery activities and observed by the observation that students often lose focus in learning and often do not write school notes when learning takes place and after the implementation of student access to content mastery services it is increasingly clear that the increase in learning interest is growing towards students.
Impact of Pyrolysis Temperature and Jatropha Seed Adhesive on the Properties of Bio-charcoal from Young Coconut Waste Anwar, Khairul; Mahidin, Mahidin; Ramli, Ichwana; Faisal, Muhammad; Sitorus, Agustami
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1372-1382

Abstract

This study assesses the characteristics of bio-charcoal from young coconut waste with the effect of variations in pyrolysis temperature and the addition of Jatropha seed adhesive. The physical and chemical parameters of bio- charcoal from three temperature variation treatments (380°C, 430°C, and 480°C) and three adhesive concentrations (15%, 20%, and 25%) were analyzed, including moisture content, ash content, volatile matter, calorific value and fixed carbon. In addition, the application of ANOVA and DMRT were used to evaluate the significant differences between the various treatments with significant p-value ≤ 5%. The optimal result was obtained at temperature of 430°C and 25% adhesive indicating a calorific value of 6421 cal/g, moisture content of 6.1%, ash content of 7.6% volatile matter of 7.7% and fixed carbon of 78.7%. The findings reveal that adhesive content significantly affects bio-charcoal quality, while temperature variations influence moisture content and heating value. This study concludes that optimizing temperature and adhesive concentrations can yield high-quality bio-charcoal, offering a cleaner, sustainable source. Keywords: Adhesive, DMRT, Jatropha curcas, Pyrolysis, Young coconut waste.
Pengaruh Bimbingan Karir Terhadap Kemantapan Keputusan Karir Siswa Kelas XII SMK Swasta Bandung 1 Lubis, Aismat Ihsan; Mahidin, Mahidin; Syukri, Makmur
Maisyatuna Vol. 5 No. 1 (2024): Januari : Jurnal Maisyatuna
Publisher : STAI Denpasar Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53958/mt.v5i1.442

Abstract

This research aims to find out: analyze whether there is an influence of career guidance on the career stability of Class XII students at Private Vocational School I Bandung. This type of research is quantitative quasi-experiment (quasi-experiment) with pre-test and post-test one group design. The subjects of this research were 32 students in class XII of Private Vocational School I Bandung. The sampling technique used purposive sampling. The data for this research was taken using a self-confidence questionnaire with 30 valid and realistic questions, then the data was analyzed using the SPSS test. Pre-test data to overcome feelings of lack of self-confidence obtained an average score of 2.045. Meanwhile, post test data on self-confidence obtained an average score of 3.875. This means that the average score of students after receiving group guidance services for career stability is higher than before receiving career guidance services for stability. From data analysis it is obtained that Fcount = 15 with a = 0.05 while Ftable = 4. From these data it can be seen that Fcount > Ftable where 15>4. This means that the hypothesis is accepted. The influence of career guidance on student career stability by contributing 33.4% to increasing the career stability of Class XII students at Private Vocational School I Bandung. This shows that there is an influence given or the hypothesis can be accepted.
Co-Authors Abdul Aziz Rusman Abdul Hadi Agustami Sitorus, Agustami Agustina, Liana Alhamidi Yusran, Alhamidi Ameilia Zuliyanti Siregar Angi, Nur Fadila Asri Gani Ayyub, Muhammad Carmen Martin Cesar R. Chamorro Cut Mutiawati Cut Nurmaliah Darmadi Darmadi Delviga, Delviga Dhedia, Muhammad Fannka Djuned, Fauzi Muhammad Fitriani Fitriani Hamdani Hamdani Hani, M. Reza Harti, Marisa Hasibuan, Ali Daud Hasibuan, Nurmiah Hisbullah Hisbullah Hrp, Muhammad Royhan Husni Husin Indera Sakti Nasution Izarul Machdar, Izarul Jose J. Segovia Ketut Tirtayasa Khairil Khairil Khairul Anwar Khalila Daulay, Nurika Kusuma, Debby Widya Lubis, Aismat Ihsan Mahyuddin Mahyuddin Mariana Mariana Mashadi Mashadi Melinda Melinda Meuthia Busthan, Meuthia Meutia Nauly Mia Aulia, Mia Miguel A. Villamanan Muhammad Dani Supardan Muhammad Faisal Muhammad Nizar Muhammad Syukur Muhibbuddin Muhibbuddin Muhibuddin Muhibuddin, Muhibuddin Muhtadin Muhtadin Nasrul Arahman Nasrul Nasrul Nuraida Nuraida Nurbaini, Nurbaini Oktaviani, Coryna Puspita, Anggun Ramli, Ichwana Razali, Nasrullah Reza, Alvan Ade Sembiring, Rinawati Sipayung, Dewi Mentari Siregar, Netti Herlina Siregar, Rahmah Sudana Siti Sahara Sudarmi, Raudhatul Aulianatia Suhada, Deksa Imam Sulastri Sulastri Susmita Br. Siregar, Tiya Modi Syahiddin Dahlan Said Syukri, Makmur T.M.I. Mahlia Teuku Azuar Rizal Tulus Tulus Utami, Putri Agus Zulkifli Nasution