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All Journal Scientific Journal of Informatics Innovative: Journal Of Social Science Research Journal of Applied Mechanical Technology (JAMET)
Adimas, Adimas
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Aerospace Engineering Humanities Automotive Engineering Computer Science & IT Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Other

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Image Sketch Based Criminal Face Recognition Using Content Based Image Retrieval Adimas, Adimas; Irianto, Suhendro Y; Karnila, Sri; Yuliawati, Dona
Scientific Journal of Informatics Vol 8, No 2 (2021): November 2021
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v8i2.27865

Abstract

Purpose: Face recognition is a geometric space recording activity that allows it to be used to distinguish the features of a face. Therefore, facial recognition can be used to identify ID cards, ATM card PINs, search for one’s committed crimes, terrorists, and other criminals whose faces were not caught by Close-Circuit Television (CCTV). Based on the face image database and by applying the Content-Base Image Retrieval method (CBIR), committed crimes can be recognized on his face. Moreover, the image segmentation technique was carried out before CBIR was applied. This work tried to recognize an individual who committed crimes based on his or her face by using sketch facial images as a query. Methods: We used an image sketch as a querybecause CCTV could not have caught the face image. The research used no less than 1,000 facial images were carried out, both normal as well asabnormal faces (with obstacles). Findings:Experiments demonstrated good enough in terms of precision and recall, which are 0,8 and 0,3 respectively, which is better than at least two previous works.The work demonstrates a precision of 80% which means retrieval of effectiveness is good enough. The 75 queries were carried out in this work to compute the precision and recall of image retrieval. Novelty: Most face recognition researchers using CBIR employed an image as a query. Furthermore, previous work still rarely applied image segmentation as well as CBIR.
Perbandingan Pelaksanaan Precast Box Culvert Dan Cast in Site Pada Saluran Irigasi (Studi Kasus Pada Proyek Irigasi Rentang Di Indramayu, Jawa Barat) Adimas, Adimas; Imam, Wahyudi S; Prabowo, Setiyawan
Innovative: Journal Of Social Science Research Vol. 5 No. 1 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i1.17518

Abstract

Sistem irigasi di Indonesia yang sangat penting untuk ketahanan pangan seringkali mengalami kerusakan akibat penggunaan metode konstruksi tradisional yang kurang efisien. Salah satu tantangan utama adalah saluran irigasi yang melintasi jalan raya, yaitu struktur yang memungkinkan aliran air untuk melewati atau bersilangan dengan jalur lalu lintas, yang sering menjadi titik kritis dalam mempertahankan umur dan efisiensi saluran irigasi. Penelitian ini membandingkan metode Precast Box Culvert dan beton Cast in Site dalam konstruksi saluran irigasi, dengan mempertimbangkan aspek metode pelaksanaan, biaya, dan waktu. Metode Precast Box Culvert lebih unggul dalam hal kecepatan dan efisiensi karena penggunaan elemen pracetak yang mempercepat waktu pemasangan, terutama di lokasi crossing jalan yang membutuhkan pengerjaan cepat untuk meminimalkan gangguan lalu lintas, meskipun biaya materialnya lebih tinggi. Sebaliknya, metode Cast in Site lebih fleksibel untuk penyesuaian di lapangan dan lebih hemat biaya, namun memerlukan waktu pengerjaan yang lebih lama, yang menjadi tantangan pada lokasi crossing jalan dengan volume lalu lintas yang tinggi. Studi kasus modernisasi saluran irigasi Rentang, Indramayu, menunjukkan bahwa Precast Box Culvert lebih cocok untuk proyek dengan jadwal yang ketat dan membutuhkan kualitas tinggi, khususnya pada crossing jalan yang kompleks, sementara Cast in Site lebih sesuai untuk proyek skala kecil hingga menengah dengan keterbatasan akses logistik dan tingkat kepadatan lalu lintas yang rendah.
​​Pengaruh G96 dan G97 terhadap Kekasaran Permukaan ST 37 dan S45C pada Pembubutan CNC​ pujo leksonowati, nur fitria; Pamungkas, Nurman; Baharudin, Budi; Cahyagi, Danang; Van Gunawan, Leo; Adimas, Adimas
Journal of Applied Mechanical Technology Vol 4 No 1 (2025): JOURNAL OF APPLIED MECHANICAL TECHNOLOGY (JAMET)
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/journalofappliedmechanicaltechnology.v4i1.308

Abstract

ABSTRACT – This study aims to compare the effects of Constant Cutting Speed (G96) and Constant Spindle Speed (G97) modes on the surface roughness of ST 37 and S45C materials in step-turning processes using a CNC lathe. A comparative experimental method was employed, measuring surface roughness (( R_a )) at stepped diameters (16 mm, 24 mm, 32 mm, and 35 mm) with a Mitutoyo Surface Tester SJ-210. Results indicate that G96 mode produces lower surface roughness, with average ( R_a ) values of 2.22 µm (S45C) and 2.27 µm (ST 37) in the N6 class, compared to G97 mode with ( R_a ) values of 3.08 µm (S45C) and 3.03 µm (ST 37) in the N7 class. G96 mode is superior due to its ability to automatically adjust rotational speed based on diameter, whereas in G97 mode, small diameters with high rotation (1273 rpm) increase roughness due to vibration or heat. This study recommends using G96 mode for optimal surface smoothness in step-turning of similar materials. rning of similar materials.
Co-Authors Baharudin, Budi Cahyagi, Danang Dona Yuliawati Imam, Wahyudi S Leo Van Gunawan Pamungkas, Nurman Prabowo, Setiyawan Pujo Leksonowati, Nur Fitria Sri Karnila Y. Suhendro