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Deep touch pressure for calming and comfort therapy from the perspective of contact mechanics: A review Mohamad Izzur Maula; Tri Indah Winarni; Muhammad Imam Ammarullah; Ilham Yustar Afif; Farhan Ali Husaini; M. Danny Pratama Lamura; Jamari Jamari
Mechanical Engineering for Society and Industry Vol 3 No 3 (2023): Special Issue on Technology Update 2023
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.10598

Abstract

The art of touch therapy has been around for centuries and has evolved into various models and styles throughout the years. In addition to reducing muscle pain, relieving stress, and providing relaxation, this therapy has worked and has been useful for many people. Methods such as touch or pressure stimulate the parasympathetic nervous system, which plays a role in a person's emotional well-being. Knowing its effects, the interaction between therapeutic devices used on the body needs to be studied further. The contact area provided by the deep touch pressure (DTP) tool will also play an important role in the therapeutic outcome. In addition, levels of comfort in pressure treatment should also be explored further to ensure compliance. This paper describes in extensive the potential of DTP in providing a comfort effect from a contact mechanics perspective. Interactions of various DTP types and pressure distribution on body area have been further investigated to minimize the contact mechanics research gap in DTP and provide the bridge between sensory therapy and the mechanical engineering domain.
Pengaruh Terapi Deep Pressure Terhadap Ketenangan Siswa Sekolah Dasar: Studi Pendahuluan menggunakan Elektroensefalogram (EEG) Maula, Mohamad Izzur; Mursyd, Ariq Imam; Pramudtya, Reza; Husaini, Farhan Ali; Afif, Ilham Yustar; Winarni, Tri Indah; Jamari, Jamari
ROTASI Vol 26, No 1 (2024): VOLUME 26, NOMOR 1, JANUARI 2024
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.26.1.15-20

Abstract

Individu dengan kondisi kesehatan tertentu, seperti gangguan integrasi sensorik/sensory integration disorder (SID) dan spektrum gangguan autisme/autism spectrum disorder (ASD) sering mengalami pengalaman yang menantang seperti kewalahan terhadap situasi baru, jika dipicu dapat berubah menjadi hiperarousal dan kecemasan. Deep pressure telah digunakan sebagai metode terapeutik untuk mengurangi masalah tersebut. Studi ini mencari potensi keuntungan dari terapi deep pressure dengan tujuan menerapkan pendekatan baru untuk menilai efek menenangkan dari terapi rompi deep pressure yang dapat diinflasi menggunakan EEG untuk mengukur aktivitas otak. Studi awal ini melibatkan 5 anak laki-laki dari sekolah dasar. Rompi yang dapat mengembung (inflatable) dan rompi yang diberi beban digunakan untuk mendapatkan efek menenangkan, dan elektroensefalogram (EEG) digunakan untuk mengukur aktivitas otak yang diperoleh dalam tiga fase yang berbeda: 1 menit sebelum (pret-est), 3 menit selama (on-test), dan 1 menit setelah eksperimen (post-test) pada 5 subjek. Sinyal EEG direkam menggunakan Muse Headband dan dianalisis menggunakan EEGLAB. Tiga gelombang otak seperti theta, alpha, dan beta relative band energies dipertimbangkan. Nilai-nilai ini sangat penting dalam menentukan apakah ada penurunan yang signifikan dalam tingkat stres atau kecemasan untuk setiap perlakuan dibandingkan dengan yang lain. Hasil statistik mengilustrasikan, posttest dari sub-gelombang energi relatif alpha meningkat sementara sub-gelombang energi beta dan theta relatif menurun dibandingkan dengan pretest. Studi ini menunjukkan peningkatan efek menenangkan di antara siswa. Secara keseluruhan, temuan kami menunjukkan potensi rompi yang dapat diinflasi dan rompi berat bervibrasi sebagai alat berharga untuk terapi deep pressure.
Integrating Automatic Arm Lifting Systems to Minimize Wire Broom Damage in Electric Road Sweepers Sakarinto, Wikan; Maula, Mohamad Izzur; Lutanto, Agus; Falah, Fajrul; Prihtiantoro, Dedhy; Djati, Isworo; Sugiyanto, Sugiyanto
Jurnal Rekayasa Mesin Vol. 19 No. 3 (2024): Volume 19, Nomor 3, Desember 2024
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v19i3.5963

Abstract

Electric road sweepers often face damage to wire broom components due to manual operation errors, particularly when navigating obstacles like speed bumps. To mitigate this, an automatic arm lifting system using proximity sensors was developed to enhance efficiency and extend broom lifespan. This study focused on designing the wiring, determining optimal sensor detection distances, and assessing sensor angle inclinations for an electric road sweeper prototype. Functional testing determined that Sensor A should be placed 60 cm from the wire broom with a tilt angle of 42.2Ëš, a distance of 2936 mm to the ground, and 2800 mm to the object for lifting commands. For Sensor B, the lowering command requires a tilt angle of 49.4Ëš, a distance of 20 cm from the wire broom, 2692 mm to the ground, and 2200 mm to the object. These settings ensure the system effectively lifts the sweeper arm over obstacles, enhancing both efficiency and durability. The findings demonstrate the potential for advanced sensor technology to improve urban cleaning equipment and support sustainable city maintenance practices.
Stress distribution on the L1/L2 endplates under multiaxial loads: A finite element study Wicaksono, Hasyid Ahmad; Rafli, Muhammad; Bilal, Muhamad; Lamura, M. Danny Pratama; Maula, Mohamad Izzur; Bayuseno, Athanasius Priharyoto; Winarni, Tri Indah; Jamari, Jamari
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12843

Abstract

Understanding stress distribution on lumbar vertebral endplates is essential for predicting mechanical failure and guiding clinical interventions. Therefore, this study aims to investigate the von Mises stress patterns on the L1/L2 endplates under multiaxial loading using a 3-dimensional finite element (FE) model derived from CT imaging of a healthy 55-year-old male. Anatomical structures were reconstructed in Mimics 21.0, and simulations were conducted in ANSYS Workbench 2023 R2. Material properties for cortical bone, cancellous bone, and intervertebral disc were assigned based on validated biomechanical data. A compressive load of 500 N and multiaxial moments ranging from 2.5 to 10 N•m were applied to simulate physiological movements, while the inferior surface of L2 was fully constrained to reflect realistic boundary conditions. The results showed that the superior endplate experienced the highest von Mises stress, particularly during flexion and lateral bending, indicating increased vulnerability to mechanical overload. Extension loading significantly reduced stress on both endplates, with a 60.54% decrease on the superior endplate and 69.17% on the inferior endplate. Stress distribution was asymmetrical and was influenced by anatomical features, such as cortical thickness and trabecular alignment. These results show the superior endplate as a biomechanically critical region prone to degeneration, emphasizing its importance in implant design, preventive strategies, and risk assessment for microfracture in high-risk populations.
Pendekatan Quality Function Deployment dengan House of Quality untuk Menganalisis Mutu Produk: Studi Kasus Radiator Cover Merek ARM Lutanto, Agus; Sakarinto, Wikan; Maula, Mohamad Izzur; Nugroho, Kacuk Cikal; Hilmy, Fuad
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2025): Volume 20, Nomor 1, April 2025
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v20i1.6198

Abstract

Persaingan di industri otomotif menuntut peningkatan kualitas produk untuk memenuhi kebutuhan pelanggan.Penelitian ini menganalisis kualitas radiator cover merek ARM dengan pendekatan Quality Function Deployment(QFD) dan House of Quality (HoQ). Data diperoleh melalui survei terhadap 30 konsumen yang telah menggunakanproduk selama lebih dari enam bulan, serta wawancara dengan produsen dari divisi research and development (R&D)dan produksi. Matriks HoQ digunakan untuk menerjemahkan kebutuhan pelanggan menjadi spesifikasi teknis produk.Hasil penelitian menunjukkan bahwa desain produk (19%), material berkualitas (16%), variasi warna (16%), dankeseimbangan harga-kualitas (16%) merupakan prioritas utama dalam pengembangan produk. Dibandingkan dengankompetitor, produk ARM menunjukkan keunggulan dalam aspek desain dan kualitas material. Penelitian inimemberikan rekomendasi strategis bagi produsen untuk mengembangkan produk secara berkelanjutan yang lebihsesuai dengan kebutuhan pasar, serta memperkuat posisi kompetitifnya di industri otomotif nasional
Innovations in Mechanical Engineering: Bridging Safety, Efficiency, and Sustainability through Cutting-Edge Research Mohamad Izzur Maula
Multidisciplinary Innovations and Research in Applied Engineering Vol. 1 No. 1 (2024)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/satk7438

Abstract

The rapid evolution of mechanical engineering has fostered significant advancements across various sectors, emphasizing safety, efficiency, and sustainability. This editorial compiles and explores four key research topics that highlight these advancements: automotive braking technology, magnetorheological elastomers, heat transfer in plane walls, and titanium dioxide photocatalyst coatings. These topics illustrate the integration of innovative materials and methods into engineering practices, addressing contemporary challenges in safety, performance, and environmental impact. By reviewing these studies, this article provides insights into how modern engineering research continues to push the boundaries of technology, offering promising solutions to enhance everyday applications. The findings emphasize the importance of ongoing research and development to optimize these technologies for future industrial applications.
Mapping the Spread of Innovation in Multidisciplinary Applied Engineering Fields: A Review and Bibliometric Analysis Mohamad Izzur Maula; M. Danny Pratama Lamura; Sakarinto, Wikan
Multidisciplinary Innovations and Research in Applied Engineering Vol. 2 No. 1 (2025)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/x0g77106

Abstract

Applications of engineering have developed to numerous sectors and generated cross- and multidisciplinary studies to the academic world and global practitioners. The present study conducts a bibliometric examination and network visualization of applied engineering studies between 2014 and 2024, based on data taken from the Scopus database. Focus on studies included within the subject area multidiscipline, the examination delves into international linkage research, author-delineated themes, and index keyword arrangements to identify emerging tendencies and conceptual aggregations. Visualization conducted with the help of VOSviewer identifies the dominance of nations like China, the United States, and the United Kingdom both by publishing output as well as collaborative strength, with increasing participation by emerging nations like India, Saudi Arabia, and Iran. Author keyword examination identifies conventional sectors of engineering like mechanical, chemical, and electrical engineering, along with computational techniques like machine learning and optimization. On the other side, index keyword examination identifies the dominance of bioengineering themes involving metabolism, genetics, tissue engineering, and gene expression, with these terms possessing the greatest overall link strengths within the collection. By charting innovation across conceptual as well as geographic dimensions, the paper outlines the intricate, intertwined character of the contemporary applied engineering.