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Optimasi dan Evaluasi Mutu Roti Bebas-Gluten dari Tepung Kedelai, Sorgum, dan Kacang Merah dengan Pemanasan Ohmik Menggunakan Response Surface Methodology Jenri Parlinggoman Hutasoit; Yuni Yolanda; Dela Febrianti
Pro Food Vol. 12 No. 1 (2026): Pro Food (Jurnal Ilmu dan Teknologi Pangan)
Publisher : Fakultas Teknologi Pangan dan Agroindustri, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/profood.v12i1.613

Ohmic heating has emerged as an alternative volumetric baking technology capable of improving the quality of gluten-free bread; however, its effectiveness is strongly influenced by the starch and protein composition of the ingredients used. This study aimed to optimize the formulation of gluten-free bread processed by ohmic heating using soybean flour, sorghum flour, and red kidney bean flour as complementary proteinâ€“starch sources. A mixture design Response Surface Methodology (RSM) was applied to evaluate the effects of flour proportions on specific volume and proximate composition. Soybean flour (50-80%), sorghum flour (10-30%), and red kidney bean flour (10-20%) were selected as independent variables. The optimal formulation consisted of 71.39% soybean flour, 10.00% sorghum flour, and 18.61% red kidney bean flour, yielding a specific volume of 2.79 Â± 0.07 cmÂ³/g and a protein content of 22.68 Â± 0.05%. Model validation confirmed no significant differences between predicted and experimental values (p>0.05). The results demonstrate that synergistic interactions between protein-rich and starch-rich flours under ohmic heating significantly enhance bread structure and nutritional quality. This study provides a systematic formulation strategy for developing high-quality gluten-free bread using ohmic heating technology.

Pemanfaatan Mesin Pelontar Bola Dalam Peningkatan Keterampilan Teknik Tenis Meja Pada Komunitas Persatuan Tenis Meja Garuda Nabontar Edo Barlian; Kemala Jeumpa; Haris Kurniawan; Wisnu Prayogo; Novrizaldi Wardana; Yuni Yolanda
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 9, No 7 (2026): Volume 9 Nomor 7 (2026)
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v9i7.26035

ABSTRAK Tenis meja berkembang di tingkat masyarakat, namun peningkatan keterampilan teknik masih terkendala keterbatasan sarana dan metode latihan yang belum terstruktur. Komunitas PTM Garuda Nabontar memiliki potensi besar, tetapi latihan masih manual sehingga intensitas dan variasi terbatas, yang berdampak pada penguasaan teknik dan partisipasi masyarakat. Kegiatan ini bertujuan meningkatkan keterampilan teknik melalui pemanfaatan mesin pelontar bola sekaligus memperkuat peran komunitas sebagai pusat pembinaan olahraga. Metode yang digunakan meliputi penyuluhan, pelatihan teknik, dan pendampingan berbasis praktik melalui tahapan sosialisasi, pengadaan alat, latihan rutin, dan evaluasi. Hasil menunjukkan capaian yang signifikan, yaitu tersedianya 4 unit mesin pelontar, peningkatan latihan mandiri menjadi 2 sesi per minggu, serta 3 sesi pelatihan teknik per bulan. Keterampilan teknik meningkat pada 80% peserta, akurasi pukulan mencapai 80%, dan kemampuan footwork meningkat pada 68% peserta. Partisipasi masyarakat meningkat sebesar 40%, terbentuk 1 komunitas baru, serta teridentifikasi 2 atlet potensial. Pemanfaatan teknologi ini efektif meningkatkan keterampilan teknik, efisiensi latihan, dan partisipasi masyarakat secara berkelanjutan. Kata Kunci: Tenismeja, Pelontar, Komunitas, Keterampilan. ABSTRACT Table tennis is widely developed at the community level, yet technical skill improvement is still constrained by limited training facilities and unstructured methods. The PTM Garuda Nabontar community has strong potential, but training remains manual, resulting in limited intensity and variation, which affects skill mastery and community participation. This program aims to improve technical skills through the use of a ball launcher machine while strengthening the community’s role as a sports development center. The methods include counseling, technical training, and practice-based mentoring through stages of socialization, equipment provision, routine training, and evaluation. The results show significant achievements, including the provision of 4 ball launcher units, an increase in independent training to 2 sessions per week, and 3 technical training sessions per month. Technical skills improved in 80% of participants, stroke accuracy reached 80%, and footwork ability improved in 68% of participants. Community participation increased by 40%, with the formation of 1 new community and the identification of 2 potential athletes. The use of this technology effectively enhances technical skills, training efficiency, and sustainable community participation. Keywords: Tabletennis, Launcher, Community, Skills.

ANALISIS PENERAPAN SISTEM MANAJEMEN KESELAMATAN, KESEHATAN DAN LINGKUNGAN KERJA (SMK3L) PADA PROYEK KONSTRUKSI BANGUNAN BERTINGKAT, STUDI KASUS PEMBANGUNAN RUMAH SAKIT 16 LANTAI DI MEDAN, KECAMATAN PERCUT SEI TUAN, KABUPATEN DELI SERDANG Miranda Simbolon; Dea Amanda Purba; Riko Jodika Tinambunan; Igor Jekkar Simalango; Rizky Simanjuntak; Yuni Yolanda
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 No. 2, Juni 2026 Release
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.12845

The implementation of an Occupational Safety, Health, and Environment Management System (OHSMS/SMK3L) is a crucial aspect in ensuring worker safety on high-rise construction projects. This study aims to identify risky work activities, evaluate the use of Personal Protective Equipment (PPE), and assess the implementation of safety facilities on a 16-story hospital construction project in Medan. The method used was direct field observation during a three-month internship, focusing on structural work. The study results indicate various high-risk activities, including working at heights, the use of heavy equipment, electrical installations, and welding and cutting. Furthermore, several hazardous work areas were identified, such as project traffic lanes, narrow spaces, and slippery work surfaces. The use of PPE, including safety helmets, safety shoes, reflective vests, gloves, masks, and body harnesses, was generally implemented. However, discrepancies were found in the use of PPE, both in terms of completeness and standards. Safety facilities such as K3 signs, evacuation routes, fire extinguishers, and first aid kits were available, but still require improvement in quantity and placement. The conclusion of this study indicates that the implementation of SMK3L in the 16-story hospital construction project in Medan has been quite successful, but still requires improvements in supervision, worker compliance, and compliance with occupational safety standards. Optimizing the implementation of SMK3L is expected to minimize the risk of workplace accidents and create a safe, healthy, and productive work environment.

Evaluasi Penerapan K3 dan Risiko Kecelakaan pada Proyek Konstruksi di Kota Medan Afriyani Siburian; Ival Ardyansyah Gultom; Muhammad Rafa Rizqi Lubis; Thya Ifhada Tambunan; Rizky Simanjuntak; Yuni Yolanda
JURNAL TECNOSCIENZA Vol. 10 No. 2 (2026): JURNAL TECNOSCIENZA
Publisher : JURNAL TECNOSCIENZA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51158/v6xkms40

The construction sector is one of the industries with a relatively high risk of occupational accidents due to complex work activities, the use of heavy equipment, and dynamic working environments. These conditions make the implementation of Occupational Safety and Health (OSH) essential to protect workers from occupational accidents and health problems. This study was conducted to evaluate the implementation of OSH and identify potential work accident risks in construction projects in Medan City. A descriptive qualitative method was applied through field observations, documentation, and an OSH checklist. The results indicate that OSH implementation at the project site has generally been carried out well, as reflected by the availability of Personal Protective Equipment (PPE), safety signs, fire extinguishers, and evacuation routes. However, several unsafe conditions were still identified, including incomplete use of PPE, work at heights without adequate protection, and dusty working environments. These conditions may increase the risk of occupational accidents and health problems among workers. Therefore, improved supervision, worker awareness, and environmental control are needed to optimize OSH implementation and create a safer workplace.

Analisis Sistem Drainase Dalam Mengurangi Genangang Air Kota Medan Kecamatan Percut Sei Tuan Rika Dona Puspita; Gari Daniel Silaban; Wisnu Prayogo; Rizky Simanjuntak; Rumilla Harahap; Yuni Yolanda
Jurnal Ilmu Teknik Sipil Indonesia Vol. 2 No. 2 (2026): JITESNA - Juli
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jitesna.v2i2.1387

Urban drainage systems play an important role in managing stormwater runoff in urban areas. Rapid urban development often reduces infiltration areas and increases surface runoff, which can lead to flooding and waterlogging in several locations. This study aims to analyze the performance of urban drainage systems and identify factors causing water inundation in urban areas. The research method used is a descriptive quantitative approach by evaluating drainage channels based on rainfall data, channel capacity, sedimentation conditions, and supporting environmental factors. Secondary data were collected from previous studies and hydrological analysis results. The analysis includes rainfall intensity calculation, runoff discharge estimation, and comparison with existing drainage channel capacity. The results show that several drainage channels are unable to accommodate the design discharge due to sedimentation, waste accumulation, and changes in land use. In addition, insufficient maintenance of drainage channels also contributes to the reduced performance of the drainage system. Therefore, improvements in drainage channel capacity, routine maintenance, and integrated urban drainage planning are needed to reduce flood risks in urban areas. The results of this study are expected to provide useful information for local governments in improving urban drainage management systems.

Evaluasi Kinerja Sistem Drainase Berdasarkan Debit Limpasan Dan Kapasitas Saluran Di Medan Tembung Rachel Yunita Silitonga; Rendi Siahaan; Yuni Yolanda
Jurnal Ilmu Teknik Sipil Indonesia Vol. 2 No. 2 (2026): JITESNA - Juli
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jitesna.v2i2.1392

Sedimentation in drainage channels is one of the main factors that can reduce flow capacity and hydraulic performance. This study aims to analyze the effect of sedimentation levels on flow discharge in several drainage channel segments with different cross-sectional shapes, namely rectangular and trapezoidal, as well as varying channel dimensions. The data used include channel width, channel height, sediment thickness, and water surface elevation in each segment. Flow discharge is calculated using the Manning equation to determine the actual flow conditions. The results show that higher sedimentation levels significantly reduce flow discharge, particularly in segments with smaller channel dimensions. In addition, rectangular cross-sections with larger dimensions tend to provide better flow capacity compared to smaller trapezoidal sections. Therefore, sedimentation plays an important role in influencing the performance of drainage systems.

Analisis Persentase Sedimentasi Dan Dampaknya Terhadap Debit Aliran Pada Penampang Saluran Trapesium Dan Persegi Azka Ikrimah Ahmad; Tiara Revitasari; Yuni Yolanda
Jurnal Ilmu Teknik Sipil Indonesia Vol. 2 No. 2 (2026): JITESNA - Juli
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jitesna.v2i2.1394

Analysis of Sedimentation Percentage and Its Impact on Flow Discharge in Trapezoidal and Rectangular Channel Sections. Sedimentation in drainage channels is a major cause of reduced capacity and flow effectiveness. This study aims to analyze the effect of sedimentation percentage on flow discharge in five segments of drainage channels with variations in cross-section types (rectangular and trapezoidal) and dimensions. The data used include top width, bottom width, channel height, sediment thickness, and water surface height in each segment. The analysis was conducted using Manning’s equation to calculate the actual flow discharge under existing conditions. The results show that the highest sedimentation levels occur in Segments 2 and 3, with percentages of 20.8% and actual discharges of 0.597 m³/s and 0.560 m³/s, respectively. Segment 1 with a trapezoidal section has 7.4% sedimentation and the smallest discharge of 0.0022 m³/s due to small channel dimensions. Segments 4 and 5 have sedimentation rates of 7.5% and 4.6% with actual discharges of 0.0278 m³/s and 0.0286 m³/s. It can be concluded that sedimentation significantly affects the reduction of flow discharge, and rectangular sections with adequate dimensions provide better flow capacity compared to trapezoidal sections with small dimensions.

Analisis Penerapan Sistem Manajemen Keselamatan Dan Kesehatan Kerja (SMK3) Pada Proyek Konstruksi Bangunan Bertingkat, Studi Kasus Pembangunan Hotel Di Balige, Toba Anggun Lady Paska Sibuea; Sandra Aulia Sitompul; Agnes Monaliska Sitanggang; Aldi Harliansyah Harahap; Titonik Feberman Hia; Yuni Yolanda
Jurnal Ilmu Teknik Sipil Indonesia Vol. 2 No. 2 (2026): JITESNA - Juli
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jitesna.v2i2.1397

This study analyzes the implementation of the Occupational Health and Safety Management System (OHSMS/SMK3) at the Hotel XYZ construction project in Balige, Toba, North Sumatra. The project is a 16-story hotel building currently at the structural work stage (floors 6-8) at the time of observation. A qualitative observational method was used, carried out during a 3-month internship period. Data was collected through direct field observations covering risk activities, use of personal protective equipment (PPE), availability of K3 signs and facilities, as well as supervision and work procedures. The results show that high-risk activities such as working at height, heavy equipment operation, material lifting, welding, and electrical work were identified at the site. PPE consisting of safety helmets, reflective vests, safety shoes, work gloves, and full body harnesses were available; however, worker compliance in using PPE was still low. Several critical K3 facilities were not available, including K3 signs, assembly points, fire extinguishers (APAR), Lock Out-Tag Out (LOTO) systems, safety briefings, APD supervision, K3 SOPs, and K3 officers. These findings indicate that the SMK3 implementation at this project is still in the poor category based on the performance criteria of Ministerial Regulation PU No. 9 of 2008. Improvement recommendations include providing complete K3 facilities, implementing routine safety talks, strengthening supervision, and appointing competent K3 officers.

Kasifikasi Kondisi Saluran Drainase Perkotaan Berdasarkan Dimensi, Ketinggian Air, Dan Sedimentasi Di Medan, Indonesia Fifi Aliyda; Zulham Prasetyo; Yuni Yolanda; Rizky Simanjuntak; Rumillah Harahap; Wisnu Prayogo
Jurnal Ilmu Teknik Sipil Indonesia Vol. 2 No. 2 (2026): JITESNA - Juli
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/jitesna.v2i2.1401

Urban drainage systems play an important role in managing stormwater runoff in urban areas. Rapid urban development often reduces infiltration areas and increases surface runoff, which can lead to flooding and waterlogging in several locations. This study aims to analyze the performance of urban drainage systems and identify factors causing water inundation in urban areas. The research method used is a descriptive quantitative approach by evaluating drainage channels based on rainfall data, channel capacity, sedimentation conditions, and supporting environmental factors. Secondary data were collected from previous studies and hydrological analysis results. The analysis includes rainfall intensity calculation, runoff discharge estimation, and comparison with existing drainage channel capacity. The results show that several drainage channels are unable to accommodate the design discharge due to sedimentation, waste accumulation, and changes in land use. In addition, insufficient maintenance of drainage channels also contributes to the reduced performance of the drainage system. Therefore, improvements in drainage channel capacity, routine maintenance, and integrated urban drainage planning are needed to reduce flood risks in urban areas. The results of this study are expected to provide useful information for local governments in improving urban drainage management systems.

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