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All Journal PROSIDING SEMINAR NASIONAL MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil Abdimas Jurnal Teknik Sipil dan Perencanaan Jurnal Teknologi Elektro Dinamika Teknik Sipil International Conference on Coastal and Delta Areas Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Pengabdian Magister Pendidikan IPA Jurnal Pensil : Pendidikan Teknik Sipil APTEK Community Development Journal: Jurnal Pengabdian Masyarakat Journal of Vocational and Career Education Teknika Jurnal Teknik Sipil Aceh International Journal of Science and Technology Jurnal Inovasi Konstruksi Jurnal Teknik Sipil dan Perencanaan Journal of Vocational and Career Education
Rini Kusumawardani, Rini
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Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Physics Public Health Social Sciences Transportation Other

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Interpretation  of Ground Penetrating Radar (Gpr) to Determine the Depth of Pipe Objects in the Sandbox Dwi Sri Wahyudi; Rini Kusumawardani
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27698

Abstract

Ground Penetrating Radar (GPR) is a non-destructive inspection technology that utilizes electromagnetic (EM) waves to map subsurface structures. This study focuses on estimating the diameter and depth of buried cylindrical objects, especially pipes, using GPR. This research was carried out through laboratory experiments using a box filled with dry sand. GPR data is processed using matGPR software to analyze hyperbolic reflections generated by buried objects. matGPR is software used for mathematical calculations of all three software. The speed of the EM wave is calculated based on the dielectric properties of the sand, and the depth and diameter of the pipe are estimated using a mathematical model derived from hyperbolic reflection. The results showed that the pipe depth estimate had a low error percentage, generally below 5%, which indicated high accuracy in GPR measurements, pipe A showed an estimated depth of 16.2 cm with the result obtained an error percentage of 1.8%, pipe B showed an estimated depth of 15.3 cm with the result obtained an error percentage of 1% and pipe C showed an estimated depth of 13.7 cm with the result obtained The error percentage is 2.2 %.The study concludes that GPR is an effective tool for estimating the depth of buried objects, especially in a controlled environment such as a sandbox. However, factors such as burial depth, pipe material, and dielectric properties of the medium can affect the accuracy of the measurement. Future research should consider using varied pipe materials and deeper burial depths to further validate the reliability of this method under field conditions.
OPTIMIZING STUDENT'S UNDERSTANDING THROUGH THE USE OF OSH LAND MEASUREMENT GUIDELINES IN VOCATIONAL HIGH SCHOOL Fuad, Muhammad Nur; Kusumawardani, Rini; Supraptono, Eko
Jurnal Pensil : Pendidikan Teknik Sipil Vol. 14 No. 2 (2025): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v14i2.53523

Abstract

Occupational Safety and Health (OSH) is essential in every field of work, especially in the construction sector, which has a high risk. One way to improve understanding of OSH is through learning when students carryout practices in vocational schools. This study aims to determine the extent of optimization of students’ understanding through the use of OSH guidelines and evaluate the extent to which the use of OSHguidelines can improve student understanding. The study used a quantitative approach with a pretest and post-test design. This study involved 35 students as samples, namely students of class X TKP 2 of SMK Negeri 3 Semarang. The results showed that applying the OSH guide significantly improved students’ understanding, with an average pretest score of 62.77 and a post-test of 92.06. The Paired Samples T-Test test yielded a p-value of 0.000, indicating a significant difference between the pretest and post-test scores. The ANOVA test results also indicated that students’ response to the OSH guide significantly affected their improved  understanding. These findings indicate that using OSH guidelines in learning land measurement practices effectively improvesstudents’ understanding and awareness of the importance of safety in the field.
The Implementation of a Project-Based Learning Jobsheet in Teaching Electrical Systems of Light Vehicle Bodies Afindala, Ajib; Anis, Samsudin; Kusumawardani, Rini
Journal of Vocational and Career Education Vol. 10 No. 1 (2025): July 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v10i1.30882

Abstract

One of the challenges faced in the recent learning process is that students have low psychomotor competency in learning job sheets related to the electrical systems of light vehicle bodies, such as in the lighting system, power window, sign lamp system, mirror cleaning system, and AC system. The use of unengaging job sheets led to low learning motivation and a decline in students’ psychomotor competencies. This study aimed to investigate the impact of a project-based learning job sheet on enhancing the psychomotor competencies of vocational students in the electrical systems of light vehicle bodies, including components such as the lighting system, power windows, signal lamp system, mirror cleaning system, and air conditioning system. This job sheet incorporated an innovative approach by integrating interactive visuals via QR codes, providing tutorial simulations of electrical systems in light vehicle bodies. This job sheet assisted students in understanding the material while encouraging active participation, collaboration, and high learning motivation. The present study employed research and development (R&D) using the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The research subject of this study is XI grade students of Light Vehicle Engineering at Vocational (SMK) Gardua Nusantara Karanggawen with applied quantitative approach. The data collection technique used a pre-test and a post-test, with the results analyzed using linear regression through the SPSS application. The validation result of the media and material experts showed that the developed job sheet is very feasible with an average score of 4.83 (scale of 5). The practicality test carried out by the teacher achieved 86.55%, or it was declared as very practical. The jobsheet effectivity was proven through N-Gain significant score in the experimental class, which gained 76.94%, while the control class achieved 26.70%. In conclusion, the project-based learning job sheet is effective in enhancing students’ psychomotor competencies and has become a feasible medium for instruction.
Analisis Kerawanan Longsor Berdasarkan Tingkat Kelerengan di Kecamatan Gunungpati Menggunakan Analisis Spasial SIG Ilfiyaningrum, Alfita; Balqis Sabbah, Azzah; Kusumawardani, Rini
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 14, No. 02, Juli 2022
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v14i2.1338

Abstract

Tanah Longsor merupakan salah satu bencana yang terjadi di Indonesia. Ada beberapa factor penyebab terjadinya tanah longsor antara lain curah hujan tinggi, jenis tanah, bencana alam pemicu dan kondisi kemiringan tanah. Untuk melakukan analisis dalam ruang lingkup sempit penyebab yang paling berpengaruh adalah kemiringan tanah. Hal ini disebabkan untuk ruang lingkup local curah hujan dan jenis tanah relatif sama, sehingga dapat disamakan pengaruhnya. Kecamatan Gunungpati merupakan salah satu kecamatan di Kota Semarang. Secara topografi Kecamatan Gunungpati 18.92 % di Ketinggian 19–150 meter, 30.11% di Ketinggian 150–240 meter, 27.78% di ketinggian 240–320 meter, 18% di ketinggian 320 – 440 meter, dan 5.2% di ketinggian 440-610 meter. Analisis spasial dilakukan terhadap data citra DEMNAS BIG untuk mendapatkan peta ketinggian dan peta tingkat kelerengan. Analisis spasial yang dilakukan dengan menghitung tingkat kelerengan pada setiap ruas area. Perhitungan kelerengan dilakukan dengan menghitung persentase perbandingan beda tinggi dan beda jarak datar. Hasil perhitungan kelerengan digunakan untuk pengelompokan tingkat kelerengan yaitu datar, landai, agak curam, curam, dan sangat curam. Analisis dilakukan tiap desa untuk mengetahui persentase masing-masing ketinggian dan tingkat kelerengan. Berdasarkan analisis spasial intersect didapatkan hasil daerah di Kecamatan Gunungpati yang rawan terjadinya longsor terletak pada kondisi kelerengan agak curam, curam, dan sangat curam. Total kawasan rawan tanah longsor berdasarkan skema tersebut adalah 2067.83 Ha atau 38.40 % dari total luas daerah Kecamatan Gunungpati yaitu 5834.47 Ha
Pemanfaatan Fly Ash dan Bottom Ash PLTU Rembang Untuk Pembuatan Beton Menggunakan Semen PPC Wardhani, Kinan Wintang; Pangestuti, Endah Kanti; Kusumawardani, Rini; Firdaus, Muh Arief
Jurnal Inovasi Konstruksi Vol 3, No 1 (2024): April
Publisher : Politeknik Pekerjaan Umum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56911/jik.v3i1.86

Abstract

The research aims to reduce the amount of coal burning waste of fly ash and bottom ash PLTU Rembang as a substitution of cement and sand in the production of quality concrete K-225 and waterproof using Portland Pozzolan cement. The method was experimented in the laboratory by making 50 samples of 15 x 15 x 15 cm3 test objects for 28 days, 60 days, and water absorption tests. The test objecte was made in 5 variations: normal concrete (without substitution) and 20% bottom ash substitution concrete and fly ash mixture 0%, 5%, 10%, 15%. Strong K-225 pressure occurs at the age of 60 days on bottom ash substituted concrete 20% with fly ash 0%, 5% 10% and 15% respectively of 245 kg/cm2, 254,67 kg/cm2, 250,67 kg/cm2, dan 250,67 kg/cm2. Water absorption of concrete at 28 days of ashes substitution was less than 20% and ashes flew below 0% and 5%, 10% 15% resulted in 4.85%, 5.17%, 5.05%, and 5.18%. The results of the research showed that the concrete made meets the K-225 quality and better absorption than normal concrete.
The Development of an Android-Based Interactive Learning Media to Enhance Understanding of OP-AMP Application as a Temperature Sensor Controller Irawan, Dodi; Khumaedi, Muhammad; Kusumawardani, Rini
Journal of Vocational and Career Education Vol. 8 No. 2 (2023): December 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v8i2.10856

Abstract

The utilization of OP-AMP as controllers for temperature sensors plays a crucial role in both the manufacturing and automation sectors. Nevertheless, traditional learning approaches often fail to engage students, leading to diminished interest and lower academic performance. To address this issue, an interactive learning media based on Android technology is being developed, aimed at enhancing current teaching methods and improving students' understanding of OP-AMP applications in temperature sensor control. The objectives of this study are threefold: (1) to analyze the viability of the developed learning media, (2) to evaluate the impact on learning outcomes, and (3) to compare the learning improvements between this new media and traditional teaching methods. The research follows the ADDIE model, with data collection carried out via pre-tests and post-tests. Media feasibility was evaluated using CVR and CVI tests, while the cognitive test's validity was measured through Aiken's V and ICC. Data analysis employed a two-tailed t-test and N-Gain calculation. The study involved 72 eleventh-grade students from the Industrial Electronics Engineering program at SMK NU Ungaran. Results indicated that the Android-based interactive learning tool was highly effective, with a CVR above 0.75, an Aiken's V score of 0.90, and an ICC value of 0.797. Moreover, this learning media significantly enhanced students' academic performance, with a t-value of 30.234 and a p-value of 0.000. The experimental group saw a 74.4% improvement in learning outcomes, compared to 67.4% in the control group, demonstrating the media’s effectiveness in teaching OP-AMP applications.
Development and Implementation of Jobsheets in Basic Culinary Competence S, Salam Sofan; Sutopo, Yeri; Kusumawardani, Rini
Journal of Vocational and Career Education Vol. 9 No. 1 (2024): July 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i1.17883

Abstract

Vocational education is developed based on societal needs and challenges. To enhance competencies, vocational training is necessary to provide students with real-world experiences. The aim of this research is to develop jobsheets, test their feasibility and practicality, and analyze the improvement in basic culinary skills among students using the jobsheets. This research employs the ADDIE model of Research and Development (RnD), which consists of five development stages: analysis, design, development, implementation, and evaluation. The subjects of this study were 36 tenth-grade culinary students at SMK N 6 Kota Semarang. The data analysis used t-tests to examine how the use of jobsheets impacts basic culinary skills. The research results indicate that (1) the jobsheets are feasible and practical for use in practical learning, (2) the jobsheets effectively improve cognitive, affective, and psychomotor aspects in basic culinary skills, and (3) the achievement of basic culinary competencies is also influenced by motivational and environmental factors.
Integration of Occupational Safety and Health Awareness and Compliance in the Implementation of Land Surveying Practices in Vocational High Schools Fuad, Muhammad Nur; Kusumawardani, Rini; Supraptono, Eko; Sutopo, Yeri; Handayani, Sri
Journal of Vocational and Career Education Vol. 9 No. 1 (2024): July 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i1.22458

Abstract

Occupational Safety and Health (OSH) is a crucial aspect of land surveying practices conducted by vocational high school students. The risk of accidents, such as falls, being buried by soil, and exposure to extreme weather conditions, necessitates the optimal implementation of OSH awareness and compliance. This study aims to analyze the integration of student awareness and compliance with OSH in land surveying practices. The research employs a quantitative approach using multiple linear regression analysis. Prior to analysis, the data were tested for (1) normality, (2) homogeneity, and (3) linearity. The study population consists of 105 students from the Construction and Housing Engineering program at SMK Negeri 3 Semarang, selected through a total sampling technique. Data were collected through questionnaires, observations, and interviews, then analyzed using SPSS. The results indicate that student awareness and compliance significantly and simultaneously influence OSH implementation, contributing 78%. The correlation analysis reveals a strong relationship of 88% between the variables. Students with high awareness and compliance demonstrate greater discipline in adhering to OSH procedures in the field. These findings suggest that enhancing education, providing adequate safety facilities, and enforcing strict supervision can further improve OSH implementation in land surveying practices within vocational school environments.
Development of a Mobile Learning-Based Education and Training System to Improve Professional Competence of Vocational High School Teachers Maheswari, Zahra Akira; Kusumawardani, Rini; Hudallah, Noor
Journal of Vocational and Career Education Vol. 9 No. 2 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i1.25530

Abstract

This study was conducted to address the gap between the professional competence of vocational high school teachers and the competency standards established by the Regulation of the Minister of National Education Number 16 of 2007 and the Decree of the Directorate General of Teachers and Education Personnel Number 2626/B/HK.04.01/2023 regarding the Teacher Competency Model. Limited access to conventional education and training also contributes to this issue. The objective of this research is to develop a mobile learning-based training system using multi-platform integration that is engaging, effective, and adaptive in order to enhance the professional competence of vocational high school teachers.The development process applied the ADDIE model through five comprehensive stages. In the analysis stage, a needs assessment survey identified an urgent need for technology-based training. During the design stage, various components of the mobile learning system were structured. The development stage involved expert validation, and the system was rated as “Highly Feasible” by media experts. In the implementation stage, the system was delivered online and involved 230 vocational high school teachers. The evaluation stage showed an increase in the average score from 15.62 in the pre-test to 18.84 in the post-test, with an N-Gain score of 0.74, categorized as high. Additionally, participants rated the system as “Very Engaging”, with an attractiveness score of 3.6 out of 4, equivalent to 90%.The findings indicate that the mobile learning-based education and training system developed in this study is effective in improving the professional competence of vocational high school teachers.
The Role of Career Guidance in Preparing Vocational School Students in the Building Construction Department for the Workforce Zulaikhah, Siti; Sutopo, Yeri; Kusumawardani, Rini; Supraptono, Eko; Fuad, Muhammad Nur; Nurfitriyani, Sintya Andryati
Journal of Vocational and Career Education Vol. 9 No. 2 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i2.27472

Abstract

The Central Bureau of Statistics indicates that the open unemployment rate for vocational high school graduates remains one of the highest categories at 9.60%. In vocational education, particularly in the Design Modeling and Building Information program, this gap is also evident in the low preparedness of students in understanding the career paths available and the lack of strategies they have to enter the workforce. This study aims to analyze the role of career guidance in preparing vocational high school students for the workforce. The role of career guidance is focused on three main directions for vocational high school graduates: working in industry, continuing education to higher education, and entrepreneurship. This study uses a quantitative approach with a sample of 72 students from Vocational High School Negeri 3 Semarang, divided into two classes. The sampling technique used is total sampling. Data collection was conducted through work readiness and career guidance questionnaires, as well as interviews with instruments that were previously validated by experts. Data analysis included tests for normality, homogeneity, linearity, and simple linear regression. The results showed that career guidance plays a very significant role in the work readiness of students with a value of 68.8%. Meanwhile, the remaining 31.2% is influenced by other factors not explored in the study, such as motivation, interests, talents, and effort. This was supported by interview results, where students stated that career guidance helped them recognize their potential, explore job opportunities, and begin planning their next steps, whether for employment, continuing education, or entrepreneurship.
Co-Authors -, Lashari - ., Lashari AA Sudharmawan, AA Adib Maulana Afindala, Ajib Ageng, Sultan Agung Hermawan, Indra Agung Sutarto Alfita Ilfiyaningrum Alifta Lutfiaazahra Amelia, Naswa Badi Andyt Tegar Zakahfi Aprindra Priaji, Aprindra Arie Taveriyanto, Arie Arief Kusbiantoro Azizah, Kirana Prasetya Balqis Sabbah, Azzah Bambang Setyohadi Kuswarna Putra Bambang Suhendro Cahyo A, Hanggoro Tri Catur Rini Widyastuti, Catur Rini Danang Dwi Saputro Danuaji Syahdani, Raka Detria Ardhila Kumala Sari Dewi Lailatul Nikmah, Dewi Lailatul Dian Eka Aryanti Dwi Sri Wahyudi Dwi Widjanarko Dzikri, Muhammad Aidhil Eko Supraptono Endah Kanti Pangestuti, Endah Kanti Ermansyah, Naufal Maulana Fadhila Tiara A Ferdian - Prakasa, Ferdian - Firdaus, Muh Arief Firdaus, Nisqiyah Fisa Savanti Fitrianto, Taufik Nur Fuad, Muhammad Nur Furqon, Septindra Hafizh Al Handayani, Sri Hanggoro Tri Cahyo Hanggoro Tri Cahyo A, Hanggoro Tri Hanggoro Tri Cahyo Andiyarto, Hanggoro Tri Cahyo Henry Apriyatno Herdiana Mutmainah, Herdiana Heri Yudiono Ilfiyaningrum, Alfita Imelda Uli Vistalina Simanjuntak Indonesia, Bisma Garda Irawan, Dodi Jati Priantoro, Wisnu Jati Wahyu Arisetiawan Kabul Basah Suryolelono Kharisma, Anindya Batari Kurnia Dwi Anggraini, Kurnia Dwi Kusbiantoro, Arief Lashari - -, Lashari - Lashari ., Lashari Lili Marliyah M Arief Firdaus Mahardika Prasetya Aji Maheswari, Zahra Akira Marhaeni Dwi Satyarini Marpaung, Bangun Maulana, Adib Merli Apriyantika Moch Faizal Rachmadi Muhammad Hamzah Fansuri, Muhammad Hamzah Muhammad Khumaedi Nirima Ramadhani Noor Hudallah Nugraha, Moh Ari Restian Nur Aida Nur Qudus Nurani Nanda Isnaeni Nurfitriyani, Sintya Andryati Prakasa, Ferdian - Rahmad Hafid Hidayatullah Ratna Dewi Kusumaningtyas Restu Bachtiar, M. Vicky Rio Pratama, Anggy Ririn Anggraini Rizaldi Fadillah, Akhmad Rizky Julia Rachmawati, Rizky Julia Rr. Dewi Artanti Putri, Rr. Dewi Artanti S, Salam Sofan Samsudin Anis Setiyo Budiyanto Siti Zulaikhah Subiantara, Muhammad Ilham Supriyadi Supriyadi Syahputra, Muhammad Farhan Syamsiar, Syamsiar Tigo Mindiastiwi Tjaturahono Budi Sanjoto Togani Cahyadi Upomo Togani Cahyadi Upomo, Togani Cahyadi Tri Wahyu Kuningsih Untoro Nugroho Untoro Nugroho Wardhani, Kinan Wintang Yeri Sutopo Yus, Rakha Alfarizhi Zahra Aulia Putri Zakahfi, Andyt Tegar Zelin, Mufita Aulia