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Experimental Study on Heat Transfer Characteristics on Intersecting Spiral Finned Tube Type on Heat Exchanger Syahril, Muhammad; Syuhada, A.; Hamdani, Hamdani
Jurnal Polimesin Vol 22, No 5 (2024): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i5.3814

Abstract

Compact heat exchangers play an important role in the industrial world, one of their applications being in thermal machines to dissipate heat generated during mechanical processes. To improve the performance of heat exchangers, many studies have been conducted, including the addition of spiral fins, and the spacing of these fins on the outer surface. This study examines the heat transfer characteristics of the outer surface. The heat exchanger is made of galvanized pipe with an inner diameter of 20 mm and an outer diameter of 22 mm. It has a passage length of 300 mm with a sharp turn of 81 mm. The spiral fins are made of aluminum, with a thickness of 0.3 mm, a spiral fin height of 10 mm, and a distance of 30 mm between the spiral fins. The cross-section of the spiral fins varies, including options without spiral fins, without spiral fins, without intersecting spiral fins, with intersecting 2 mm spiral fins, intersecting 5mm spiral fins, and intersecting 7mm spiral fins. Heat exchangers are supplied with hot at a constant inlet temperature of 80C and a flow rate of 0.57 kg/s. The fan operates at speeds of 3.59 m/s, 4.45 m/s and 5.07 m/s. The results show that the highest heat transfer rate and heat transfer coefficient are produced by the heat exchanger with a cross-section of 5 mm intersecting spiral fins, specifically 11,682.7 W and 604 W/m2.K.
Analysis Of The Quality Of Islamic Religious Education Teaching Materials In Fostering An Attitude Of Tolerance Among Students At SMP 07 Muhammadiyah Medan Syahril, Muhammad
Integrasi: Jurnal Studi Islam dan Humaniora Vol 2, No 3 (2024)
Publisher : Yayasan Rahmat Islamiyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56114/integrasi.v2i3.11972

Abstract

This study aims to analyze the quality of Islamic Religious Education (PAI) teaching materials in fostering an attitude of tolerance among students at SMP 07 Muhammadiyah Medan. The research employed a qualitative approach, utilizing content analysis of the teaching materials and interviews with PAI teachers and students. The study found that the PAI materials in this school generally supported the cultivation of tolerance values, emphasizing understanding, respect, and acceptance of diversity. However, the content needed further refinement in addressing interfaith and intercultural tolerance. The findings suggest that PAI teaching materials play a significant role in promoting an inclusive attitude among students, but continuous improvement is needed to ensure that tolerance is integrated more comprehensively. The study highlights the importance of evaluating and enhancing teaching resources to align with the goals of fostering peace and mutual respect in a diverse society.
Analisis Tingkat Pemahaman Terhadap Mata Pelajaran Agama Islam Pada Siswa SMP Muhammadiyah 57 Medan Rambe, Nadiatul Ulyah; Muthi'ah, Siti; Syahril, Muhammad
Kitabah: Jurnal Pendidikan Sosial Humaniora Vol 2, No 2 (2024)
Publisher : Yayasan Rahmat Islamiyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56114/kitabah.v2i2.11534

Abstract

If the emotional, cognitive and psychomotor domains are integrated, it can be said that students' understanding of Islamic religious material is good. This will not happen if there is no communication between teachers and students. This does not rule out the possibility that there is no standard assessment carried out by educators in these three fields. To check the reality on the ground, researchers surveyed the research location at SMP Muhammadiyah 57 Medan. This research is field research using qualitative methods. Data was collected through observation, tests and interviews. Data from cases were analyzed descriptively. The findings showed that students were rated very well in the emotional domain based on the observation rubric. For the cognitive domain, only the percentage showed 55% (13 out of 25 students) who were proficient and answered all the questions. Remembering that for the psychomotor cortex, the test is carried out by practicing explaining verses from the Koran and writing verses from the Koran. 14 of the 25 students scored between 91 and 100 points. This means that students are able to express understanding of the material. The obstacles faced by students are the inability to understand the content and the lack of diversity in the student classroom atmosphere.
Pembuatan Informasi Pemesanan Minuman Pada Analisis Cafe Berbasis Dekstop Zulkarnain, Iskandar; Dahria, Muhammad; Syahril, Muhammad; Erwansyah, Kamil; Gunawan, Rudi
Jurnal Pengabdian Masyarakat IPTEK Vol. 4 No. 1 (2024): Edisi Januari 2024
Publisher : STMIK Triguna Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53513/abdi.v4i1.9611

Abstract

Tujuan dari pengabdian ini adalah mengembangkan dan merancang sistem informasi pemesanan minuman di Analis Cafe. Saat ini, proses pengolahan data di tempat ini dilakukan secara manual. Oleh karena itu, tujuan utama pengabdian ini adalah untuk mempermudah pekerjaan dan meningkatkan efektivitas serta efisiensi melalui implementasi sistem informasi yang lebih terstruktur. Dalam rangka mengatasi proses pekerjaan manual yang ada, telah dibuat sebuah sistem informasi pemesanan minuman berbasis desktop yang bertujuan untuk meningkatkan kualitas layanan di Analis Cafe. Hasil dari penggunaan sistem ini menunjukkan bahwa cafe tersebut dapat mencapai tingkat pekerjaan dan pengolahan data yang lebih baik berkat penerapan sistem informasi komputerisasi ini.
Efektivitas Norm-Referenced Assessment (PAN) dalam Meningkatkan Pemahaman Mata Pelajaran dan Motivasi Siswa: Studi Kasus di SDN 03/III Sungai Deras Syahril, Muhammad; Remiswal, Remiswal; Khadijah, Khadijah
Indo-MathEdu Intellectuals Journal Vol. 5 No. 3 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i3.1411

Abstract

This study aims to evaluate the effectiveness of testing based on norms at SDN 03/III Sungai Deras involving 19 grade V students. The research sample was 19 students in grade V at SDN 03/III Sungai Deras. Data were collected through written tests and motivational questionnaires, then analyzed using descriptive statistics and paired t-tests. Results showed a significant increase in the average written test score from 65 to 78 post-intervention, with a corresponding decrease in standard deviation indicating improved consistency. Similarly, the motivation questionnaire revealed an increase in average scores from 3.2 to 4.1 post-intervention, with improved consistency in motivation levels. Statistical analysis confirmed significant differences between pre-test and post-test scores (t = 5.80, p < 0.05). Discussion underscores the positive impact of norm-referenced assessment on enhancing subject understanding and student motivation, emphasizing its relevance in fostering a competitive yet supportive learning.
Variabilitas, Heritabilitas, dan Hasil Padi Gogo F3 Persilangan Kultivar Lokal Aceh x Ciherang Yenni Marnita; Ainul Mardiyah; Muhammad Syahril
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 49 No. 2 (2021): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (638.616 KB) | DOI: 10.24831/jai.v49i2.34329

Abstract

Peningkatan luas lahan terdampak kekeringan akibat perubahan iklim menuntut pemulia untuk merakit varietas padi yang adaptif pada kekeringan. Tujuan penelitian ini untuk mendapatkan informasi heritabilitas populasi famili F3 hasil persilangan kultivar Sileso (tetua berdaya hasil tinggi toleran kering) dengan varietas Ciherang (tetua berumur genjah) dan untuk mendapatkan genotipe yang berdaya hasil tinggi berumur genjah. Metode penelitian yang dilakukan adalah menanam populasi F3, resiprokalnya, dan tetua. Penelitian dilaksanakan di kebun percobaan Fakultas Pertanian Universitas Samudra, Langsa, Aceh, mulai Agustus sampai Desember 2020. Nilai heritabilitas tinggi pada karakter hasil pertanaman dan umur panen hanya diperoleh pada famili A1B dan A2B. Populasi A1B memiliki nilai heritabilitas hasil per tanaman sebesar 0.61 dan umur panen sebesar 0.85. Populasi A2B memiliki nilai heritabilitas hasil per tanaman sebesar 0.68 dan umur panen sebesar 0.63. Hasil seleksi diperoleh 11 genotipe dengan hasil tinggi berumur genjah yaitu: A3B(13), A1B(25), A1B(201), A1B(208), A1B(282), A1B(297), A1B(303), A2B(38), A2B(221), A2B(358), dan A2B(424) dengan rata-rata hasil per tanaman 90.67 g dan umur panen 117 hari setelah tanam. Kata kunci: resiprokal, toleran kering, umur genjah
PERENCANAAN STATEGIS SISTEM INFORMASI UNTUK KAMPUS MERDEKA MENGGUNAKAN METODE IT BALANCED SCORECARD (STUDI KASUS :UNIVERSITAS MUHAMMADIYAH PALEMBANG) Syahril, Muhammad; Antoni, Darius; Akbar, Muhammad
JUTIM (Jurnal Teknik Informatika Musirawas) Vol 8 No 1 (2023): JUTIM (Jurnal Teknik Informatika Musirawas) JUNI
Publisher : LPPM UNIVERSITAS BINA INSAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32767/jutim.v8i1.2126

Abstract

Perencanaan Strategis sistem informasi merupakan salah satu kunci dalam mencapai sasaran suatu organisasi, salah satunya pada Universitas Muhammadiyah Palembang dimana perkembangan teknologi informasi dapat membantu meningkatkan mutu dan pelayanan terhadap mahasiswa sehingga dapat menghasilkan kualitas yang siap bersaing. Model perencanaan strategis sistem informasi yang akan dibahas dalam tesis ini adalah menggunakan IT balanced scorecard yang memiliki empat perspektif yaitu perspektif user orientasi, kontribusi perusahaan, keunggulan operasional, dan orientasi masa depan. Hasil perencanaan strategis ini dalam bentuk framework dan portofolio aplikasi mendatang. Untuk mengukur dan menguji rencana strategis yang dibuat digunakan alat untuk mengukur kinerja sistem informasi yaitu IT Balanced Scorecard (BSC). Perencanaan strategis ini diharapkan dapat menajdi jawaban atas permasalahan yang dihadapi.
The Role Of Teachers Of Islamic Religious Education in Motivating Life With Broken Home Family Conditions Muhammad Syahril; Deliana, Nurfarida; Batubara, Juliana
Indonesian Journal of Islamic Education Vol. 1 No. 2 (2023): November 2023
Publisher : Departement of PAI, Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/ijie.v1i2.7743

Abstract

The study aims to understand the role of teachers of Islamic Religious Education in motivating students with broken home family conditions. The main focus of the research involves the efforts of teachers in providing guidance, motivation, and creating a classroom atmosphere conducive to increasing student learning motivation. Research methods that use qualitative research based field research using phenomenological approaches. With research subjects adalh students with broken home family conditions. Research results show that teachers of Islamic Religious Education actively provide guidance to students by providing guidance, advice, and encouragement to improve the quality of learning. Besides, they build good relationships, communicate, and provide solutions to students' problems both individually and in groups. In an effort to motivate students, teachers of Islamic Religious Education focus on moral and moral cultivation, give advice for students to be more enthusiastic about learning, and create a conducive classroom atmosphere. Teachers are also involved in student discipline handling, giving punishment of an educational nature to create a jera effect. Thus, this research contributes to understanding the role of teachers of Islamic Religious Education in addressing the learning motivation challenge of students with broken home family conditions. The implications of this study are expected to serve as a basis for developing more effective educational strategies to help students overcome the barriers caused by disintegrated family conditions.
PENGARUH IKLAN DIGITAL DAN PROMOSI PENJUALAN TERHADAP MINAT BELI MAHASISWA UNIVERSITAS MUHAMMADIYAH PALEMBANG PADA SEPATU CONVERSE Widi Samsudin; Rz Muhammad Rahman; Muhammad Syahril; Randy Hidayat
Jurnal Intelek Dan Cendikiawan Nusantara Vol. 2 No. 6 (2025): Desember 2025 - Januari 2026
Publisher : PT. Intelek Cendikiawan Nusantara

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

Abstract

Penelitian ini menguji pengaruh iklan digital dan promosi penjualan terhadap minat beli mahasiswa pada produk sepatu. Latar belakang penelitian didasari transformasi pemasaran digital dan perlunya pemahaman efektivitas strategi komunikasi pemasaran terhadap konsumen muda. Metode kuantitatif eksplanatori diterapkan dengan menyebarkan kuesioner kepada 150 responden mahasiswa, dianalisis menggunakan Structural Equation Modeling (SEM) berbasis Partial Least Squares (PLS) dengan SmartPLS 4. Hasil penelitian menunjukkan perbedaan pengaruh yang signifikan antara kedua variabel independen. Iklan digital terbukti berpengaruh positif dan signifikan terhadap minat beli (β=0.688, p=0.0005), sementara promosi penjualan meskipun menunjukkan arah positif tidak signifikan secara statistik (β=0.260, p=0.1949). Temuan ini mengindikasikan bahwa dalam konteks mahasiswa sebagai konsumen produk sepatu, strategi komunikasi pemasaran yang berfokus pada pembangunan citra dan pengalaman melalui kanal digital jauh lebih efektif membangkitkan minat beli dibandingkan strategi insentif finansial konvensional. Kesimpulan penelitian menekankan urgensi reorientasi strategi pemasaran digital yang memprioritaskan kualitas konten dan pengalaman brand dalam iklan digital, serta perlunya reinvensi format promosi penjualan agar lebih relevan dengan nilai-nilai konsumen muda. Implikasi teoritis memperkaya literatur perilaku konsumen generasi Z, sedangkan implikasi praktis memberikan panduan strategis bagi pelaku industri fashion dalam mengalokasikan sumber daya pemasaran digital.
Analisis Pengaruh Variasi Bentuk Sudden Enlargement terhadap Head Loss pada Aliran Udara Laminar Wibisono, Satria Agung; Akbar, Ali; Fahruddin, A’rasy; Firdaus, Rachmat; Syahril, Muhammad
Jurnal Mesin Nusantara Vol 8 No 2 (2025): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v8i2.24788

Abstract

Fenomena sudden enlargement pada sistem perpipaan merupakan salah satu penyebab utama terjadinya head loss yang dapat menurunkan efisiensi aliran fluida. Penelitian ini bertujuan untuk menganalisis pengaruh variasi bentuk sudden enlargement terhadap kehilangan energi pada aliran fluida laminar dengan menggunakan tiga variasi geometri, yaitu Square Edge, Rounded Edge, dan Projecting Edge. Pengujian dilakukan pada pipa berbahan akrilik menggunakan manometer U sebagai alat ukur tekanan dengan dua titik pengukuran, masing-masing pada diameter 12,7 mm dan 50 mm. Dua tingkat laju aliran udara diuji, yaitu 6 L/menit dan 4 L/menit. Data tekanan yang diperoleh diolah untuk menghitung kecepatan aliran dan head loss menggunakan persamaan dasar fluida. Hasil penelitian menunjukkan bahwa bentuk geometri memiliki pengaruh signifikan terhadap besarnya head loss. Pada laju aliran tinggi (6 L/menit), geometri Square Edge menghasilkan head loss terendah, sedangkan Rounded Edge memberikan performa optimal pada laju aliran rendah (4 L/menit). Geometri Projecting Edge secara konsisten menghasilkan head loss tertinggi pada kedua kondisi. Temuan ini menunjukkan bahwa pemilihan geometri sudden enlargement harus disesuaikan dengan kondisi operasi sistem. Penelitian ini diharapkan dapat menjadi referensi dalam perancangan instalasi perpipaan yang lebih efisien dan mendukung optimasi energi pada sistem transportasi fluida.