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All Journal Abdimas Jurnal Bahan Alam Terbarukan Jurnal Teknik Sipil dan Perencanaan Sainteknol : Jurnal Sains dan Teknologi SEMIRATA 2015 Journal of Vocational and Career Education JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Teknik Kimia dan Lingkungan Bookchapter Alam Universitas Negeri Semarang Jurnal Penelitian Pendidikan Beauty and Beauty Health Education Scaffolding Journal of Vocational and Career Education Journal of Community Empowerment
Nur Qudus
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Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Social Sciences Other

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Development of E-Modules Building Drawings with Autocad for Construction and Property Business Department Students of SMK N 1 Blora Alfian, Muhammad Habib; Qudus, Nur; Endroyo, Bambang
Journal of Vocational and Career Education Vol 6, No 1 (2021): July 2021
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v6i1.33961

Abstract

Vocational High School (SMK) is one part of the national education system with a strategic role to educate the nation's life. Students are an essential pillar of the nation's next generation, so they must increase their creativity in the learning process to hone their abilities and produce outputs or graduates ready to face challenges in the 21st Century. Choosing the right learning media can improve learning outcomes significantly between those given treatments to students of class XI BKP 3 and those who are not given treatment to students of class XI BKP 1 in SMK Negeri 1 Blora school year 2020/2021. This research aims to develop an E-module for Building Drawing Materials with AutoCAD Applications based on files Electronic Publication (EPUB) to improve student learning outcomes. This study uses research and development methods or R D. The design chosen is ADDIE, which includes five stages: Analysis, Design, Development, Implementation, and Evaluation. The research uses various instruments, namely (1) a feasibility assessment sheet for e-modules; (2) an e-module practicality questionnaire; and (3) a questionnaire on the effectiveness of the e-module to measure student learning outcomes in class XI BKP 3 and XI BKP 1 at SMK Negeri 1 Blora. The data analysis used is (1) definite to determine the feasibility level of the e-module; (2) Guttman's categorization to determine the level of practicality of e-modules, using the coefficients Kr and Ks; and (3) N-Gain and different N-Gain tests using t-test, to determine the effectiveness of the e-module on student learning outcomes. Based on the feasibility test of the Building Drawing e-module with AutoCAD file-based Electronic Publication (EPUB) developed, according to the responses of media experts and material experts obtained, the e-module response criteria is very feasible. Responses from teachers and students as user responses to the practicality test of the e-module got very applicable assessment criteria. And from the effectiveness test in the experimental class, the e-module received influential and significant standards for improving student learning outcomes in the cognitive and psychomotor aspects. In contrast, in learning outcomes in the affective part, the e-module was not adequate for enhancing student learning outcomes in class XI BKP in SMK N1 Blora.
Vinasse-Based Slow-Release Organo-Mineral Fertilizer with Chitosan-Bentonite Matrix Qudus, Nur; Kusumaningtyas, Ratna Dewi; Syamrizal, Zakky; Zakaria, Zainul Akmar; Hartanto, Dhoni
Jurnal Bahan Alam Terbarukan Vol 10, No 1 (2021): June 2021 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v10i1.28829

Abstract

Controlling the release rate of the nitrogen-phosphorus-potassium (NPK) for the soil fertilized can enhance the fertilizer efficiency and reduce the drawback for the environmental. In this work, a novel slow-release organo-mineral fertilizer was produced from the vinasse, which was blended with the NPK and the chitosan-bentonite matrix. The NPK used as additional nutrients source and the chitosan-bentonite matrix was performed as a barrier to prevent the nitrogen, phosphorus, and potassium from a rapid dissolving. The NPK release rate was measured and analyzed after 3, 6, 9, and 12 days using the incubation method and leaching test. The most efficient release rate was obtained when a dry vinasse mixed with 9% NPK and 5% chitosan-bentonite matrix with the ratio of 8:2. The vinasse-based slow-release of organo-mineral fertilizer (SR-OMF) was compared to the vinasse organo-mineral fertilizer (OMF). The result indicated that the NPK release rate in the vinasse-based SR-OMF was lower compared to that in the vinasse OMF.
MEKANISME PERILAKU GERUSAN LOKAL PADA PILAR TUNGGAL DENGAN VARIASI DIAMETER Qudus, Nur; Agustina, Asih Suprapti
Jurnal Teknik Sipil dan Perencanaan Vol 9, No 2 (2007): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v9i2.6927

Abstract

River has a dynamical characteristic which can change in time and place dimension. In balance condition, the bridge pillar would disturb the flow, and the flow reaches a balance condition again after bed scouring. The scouring around bridge pillar is caused by vortex system. These research would study the depth of scouring around the bridge single pilar. The depth of scouring around the bridge pillar has been observed for 3.5 hours by using a set of recirculating sediment flum with 6 m long; 0.21 m width and 0.30 m height in quasi-steady uniform low. The model of pillar used was circular type having dimention diameter 21.95 mm; 26.25 mm; 32.95 mm; 4175 mm and 47.50 mm. The depth of scouring was measured for every running, consist of diameter variation. Flow velocity around pillar was measured for every variation that caused a minimum scour. The pillar diameter that caused the minimum scouring was at the ground, with the diameter 21.95 mm, and the pillar diameter that caused the maximum scouring at diameter 47.50 mm.Sungai mempunyai sifat yang dinamis yang dapat berubah dalam dimensi ruang dan waktu. Pada saat kondisi seimbang, aliran akan terganggu dengan adanya pilar jembatan dan akan membentuk kondisi seimbang lagi yang menyebabkan gerusan dasar. Gerusan di sekitar pilar jembatan yang disebabkan oleh adanya sistem vortex. Penelitian ini akan mempelajari kedalaman gerusan lokal pada pilar tunggal jembatan. Kedalaman gerusan di sekitar pilar jembatan diamati selama 3,5 jam dilakukan pada satu set recirculating sediment flume dengan panjang 6 meter, lebar 0,21 meter dan tinggi 0,30 meter dengan kondisi aliran permanen seragam. Model pilar yang digunakan adalah tipe circular dengan dimensi diameter 21,95 mm; 26,25 mm; 32,95 mm;  41,75 mm dan 47,50 mm. Kedalaman gerusan diukur setiap running yang terdiri dari variasi diameter. Kecepatan aliran disekitar pilar diukur pada setiap variasi yang menyebabkan gerusan minimal terjadi. Diameter pilar yang menyebabkan gerusan minimal adalah pada dasar saluran dengan diameter 21,95 mm, dan diameter pilar yang menyebabkan gerusan maksimum pada diameter 47,50 mm.
Accuracy Comparison between GPS Real Time Kinematic (RTK) Method and Total Station to Determine The Coordinate of An Area Safrel, Ispen; Julianto, Eko Nugroho; Usman, Nur Qudus
Jurnal Teknik Sipil dan Perencanaan Vol 20, No 2 (2018)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v20i2.16284

Abstract

Abstract. Survey with GPS Real Time Kinematic (RTK) has the advantage of being faster and easier than the total station, but on the other hand the accuracy of GPS Real Time Kinematic (RTK) is considered lacking. This study was to determine the comparison of accuracy and efficiency of measuring land parcels using a total station and GPS Real Time Kinematic (RTK) method. The research location is at the Universitas Negeri Semarang campus by selecting areas that are open or unobstructed to satellites and congested areas or which have many obstacles to satellites. The results of this study indicate that for open areas, measurement with GPS Real Time Kinematic (RTK) method reaches a horizontal accuracy of 0.040 m with a time of 16 minutes 16 seconds. While the measurement using a horizontal accuracy of 0.00 Total Station with a length of time of 26 minutes 47 seconds. For areas that are densely measured, GPS Real Time Kinematic (RTK) achieves horizontal accuracy of 10.053 m with a length of time of 39 minutes 27 seconds. While the measurement using a precision horizontal Total Station 0.00 with the length of time 25 minutes 41 seconds.
Sintesis Nanoenkapsulasi Ekstrak Kulit Durian dengan Metode Spray Drying dan Aplikasinya sebagai Biopestisida: Review Nina Hartini; Syarifatur Richana; Bayu Triwibowo; Nur Qudus; Ratna Dewi Kusumaningtyas
Jurnal Teknik Kimia dan Lingkungan Vol. 2 No. 2 (2018): October 2018
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.298 KB) | DOI: 10.33795/jtkl.v2i2.61

Abstract

Indonesia sebagai negara agraris, sebagian penduduk Indonesia bermata pencaharian di bidang pertanian. Pada umumnya, masyarakat menggunakan pestisida untuk membasmi hama. Karena tingginya penggunaan pestisida maka WHO (2016) menyatakan kasus keracunan pestisida mencapai 193.000 jiwa selama tahun 2012. Untuk mengatasi permasalahan tersebut, biopestisida menjadi bahan alternatif pengganti pestisida karena lebih aman dan ramah lingkungan. Salah satu bahan alam yang berpotensi sebagai biopestisida adalah kulit durian. Rata- rata produksi durian setiap tahunnya 780.032,8 ton/tahun. Limbah kulit durian memiliki berat 60-75% dengan kandungan senyawa metabolit sekunder relatif tinggi belum termanfaatkan secara maksimal. Senyawa tersebut dimanfaatkan sebagai antioksidan dan antimikroba dalam proses pembasmi hama. Biopestisida yang dikembangkan dengan metode sokletasi menghasilkan ekstrak berbentuk cair. Namun, hasil tersebut kurang efektif dan mudah teroksidasi sehingga menurunkan keefektifitasan kadar bahan aktif. Mengatasi masalah tersebut maka perlu dikembangkan inovasi dengan proses enkapsulasi. Artikel ini me-review pengembangan metode enkapsulasi. Metode yang dapat digunakan untuk enkapsulasi biopestisida yaitu ekstrusi, spray chilling dan spray drying. Metode spray drying lebih berpotensi mengenkapsulasi biopestisida dari kulit durian karena memiliki efisiensi enkapsulan lebih tinggi dan hampir mendekati 100%. Distribusi ukuran partikel yang dihasilkan tergolong nanoenkapsulan. Indonesia as an agrarian country, most of Indonesia's people work in agriculture. In general, people use pesticides to eradicate pests. Due to the high use of pesticides, WHO (2016) stated the case of pesticide poisoning reach 193,000 in 2012. To solve the problem, Biopesticide as an alternative of synthetic pesticides because it’s more safe and environmentally friendly. One of the natural ingredients that potentially as biopesticide is durian peel. The average durian production per year is 780,032.8 tons/year. Durian peels waste weighs 60-75% with a relatively high contains of secondary metabolite not yet fully utilized. It’s used as antioxidants and antimicrobials in pesticides. Biopesticide is developed by socletation method. However, the results are less effective because it’s easily oxidized, so reduce the flavonoid efectiveness. To solve this problem, to be developed innovation with encapsulation process. This article reviews the development of encapsulation methods. Methods that can be used for biopesticide encapsulation are extrusion, spray chilling and spray drying. Spray drying method is more likely to encapsulate biopesticides because it has higher encapsulation efficiency and is close to 100%. The resulting particle size distribution is classified as nanocapsul.
PENERAPAN TEKNOLOGI PENGOLAHAN LIMBAH MINYAK GORENG BEKAS MENJADI SABUN CUCI PIRING UNTUK PENGENDALIAN PENCEMARAN DAN PEMBERDAYAAN MASYARAKAT Ratna Dewi Kusumaningtyas; Nur Qudus; Rr Dewi Artanti Putri; Rini Kusumawardani
Jurnal Abdimas Vol 22, No 2 (2018): December 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/abdimas.v22i2.16587

Abstract

Desa Sekaran memiliki Pertumbuhan penduduk, perkembangan industry, restoran dan usaha kuliner pesat karena terdapat universitas yang setiap tahunnya mengalami peningkatan mahasiswa. Hal ini memberikan banyak dampak positif bagi masyarakat, namun di sisi lain juga menimbulkan dampak yang kurang menguntungkan dari sisi lingkungan. Salah satu dampak negatif dari keberadaan usaha kuliner di wilayah Gunungpati adalah volume limbah minyak goreng tinggi. Ini terjadi karena kebanyakan masyarakat, dalam ha1 ini adalah para pedagang membuang limbah minyak goreng begitu saja. limbah minyak goreng tersebut apabila tidak dikelola dengan baik akan menimbulkan masalah bagi lingkungan, yaitu menjadikan lingkungan kotor dan dapat menemari air serta tanah.  Untuk mengatasi masalah itu, perlu adanya inovasi dalam pengelolaan limbah minyak goreng dengan melibatkan masyarakat luas sehingga limbah minyak goreng dapat dimanfaatkan menjadi produk yang bernilai ekonomis.Salah satu potensi limbah minyak goreng adalah kandungan asam lemak dari minyak nabati yang tinggi sehingga dapat dimanfaatkan menjadi sabun cuci piring yang ramah lingkungan. Oleh karena itu, untuk mengatasi masalah volume limbah minyak goreng  yang tinggi, dilakukan kegiatan pengabdian masyarakat yang bertujuan untuk meningkatkan nilai tambah bagi limbah minyak goreng dengan jalan mengolah limbah minyak goreng  menjadi sabun cuci piring. Pelatihan ketrampilan mengenai pengolahan limbah minyak goreng  menjadi sabun cuci piring ramah lingkungan telah dilaksanakan bagi masyarakat di desa Sekaran wilayah Gunungpati. Pengabdian masyarakat ini memberikan manfaat: 1) Masyarakat mengetahui dampak negative minyak goreng bekas terhadap kesehatan dan lingkungan, 2) Masyarakat mengetahui dan terampil mengaplikasikan teknologi tepat guna pengolahan minyak jelantah menjadi sabun cuci piring, 3) Masyarakat mengetahui potensi ekonomis limbah minyak goreng bekas, 4) Mendorong pemberdayaan masyarakat melalui penerapan teknologi tepat guna.
Increasing Skills for Processing Rainwater into Clean Water using the Electrolysis Method Qudus, Nur; Sugiyarto, Bambang; Harianingsih, Harianingsih; Kristanto, Virgiawan Adi; Erliana, Savira Rinda; Pangestu, Indra Sakti; Ubay, Isnina Noor; Afidah, Asti Dwi
Jurnal Abdimas Vol 27, No 2 (2023): December 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/abdimas.v27i2.46012

Abstract

The aim of community service activities from the UNNES Civil Engineering and Chemical Engineering Department Collaboration Team in Patemon is to improve the community's skills in processing rainwater so that it is suitable for consumption using the electrolysis method which has been tested for effectiveness and quality in the laboratory first. The Patemon area is an area where the water source comes from wells, has a slope of 10-45% so that during the dry season there is a shortage of water flow. The very high rainfall in Patemon, an average of 1853 mm/month, has the potential to be processed into clean water as a solution for availability in the dry season. The methods used for this service activity include field observation and coordination, training to improve skills in improving rainwater processing using electrolysis, monitoring and evaluating service results. The results obtained from this activity show that rainwater electrolysis is an appropriate alternative for providing clean water in the Patemon area. The education provided by the UNNES service team has increased the community's knowledge and skills in rainwater processing from 8% to 35%. Increased knowledge regarding rainwater harvesting from the system and working principles of rainwater electrolysis from 0% to 85%. Enthusiasm and interest in implementing activities reached 98%.
FILTER AIR HUJAN DARI ADSORBEN ALAMI ENCENG GONDOK (Eichhornia Crassipes) Qudus, Nur; Sugiyarto, Bambang; Harianingsih, Harianingsih; Kristianto, Virgiawan Adi; Pangestu, Indra Sakti; Erliana, Savira Rinda; Ubay, Isnina Noor; Afidah, Asti Dwi
Bookchapter Alam Universitas Negeri Semarang No. 4 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ka.v1i4.166

Abstract

Sistem pemanenan air hujan menjadi semakin penting dalam strategi pengelolaan air hujan yang berkelanjutan. Di negara- negara berkembang, masalah utama adalah pengolahan air yang tidak memadai dan kekurangan air. Terutama di kota-kota dan negara-negara berkembang, pemanenan air hujan dianggap sebagai sumber air alternatif yang sangat penting. Pemanenan air hujan telah disarankan sebagai teknologi bermanfaat di daerah di seluruh dunia yang mengalami musim kemarau. Jenis bahan atap dan kondisi lingkungan, seperti iklim setempat dan tingkat polusi atmosfer, memengaruhi kualitas air hujan yang dikumpulkan. Air hujan mengandung berbagai jenis bahan kimia, seperti ion bikarbonat, ion karbonat, amonia, natrium, kalium, kalsium, magnesium, hidrogen, sulfat, klorida, nitrat, dan magnesium sulfat. Konsentrasi ion hidrogen adalah faktor penting untuk mengukur tingkat keasaman hujan, atau hujan asam, Adsorpsi, pertukaran ion, pengendapan kimia, elektrolisis, elektrokoagulasi, kavitasi, elektrokoagulasi, dan ultrasonikasi adalah beberapa proses yang termasuk dalam kategori ini. Dalam produksi adsorben, asam klorida digunakan sebagai zat jenuh pada berbagai suhu aktivasi. Selain itu, adsorben digambarkan dengan Scanning Electron Microscope. Analisis suhu aktivasi digunakan untuk menentukan seberapa efektif eceng gondok dalam adsorpsi dan mengoptimalkan parameter tersebut sehingga adsorpsi dapat membantu menghilangkan BOD, COD, TDS, klorida, dan nitrat dari air hujan. Salah satu metode yang dilakukan untuk pengolahan air hujan dengan adsorpsi menggunakan adsorben enceng gondok. Selain itu, untuk mendapatkan hasil terbaik dengan menganalisis model kinetik dan isoterm adsorpsi. Hasilnya menunjukkan bahwa penggunaan adsorben enceng gondok menawarkan solusi pengolahan air hujan yang lebih hemat biaya dengan penggunaan listrik sebesar Rp. 1000,- setiap 15 menit proses adsorpsi sekali pdan ramah lingkungan.
Effectiveness of Project-Based Learning Model Teaching Tools on Fantasy Bun Material A., Annisa Anugrah; Wahyuningsih, Sri Endah; Qudus, Nur
Journal of Vocational and Career Education Vol 8, No 1 (2023): July 2023
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v8i1.46195

Abstract

Learning activities on fantasy hair bun material require students to create the design of the arrangement before engaging in practical activities. However, the practical results of the fantasy hair bun do not align with the students' initial designs. Students find it challenging to produce fantasy hair bun arrangements that match their created designs. This study aims to analyze the feasibility, practicality, and effectiveness of the Project-Based Learning teaching materials on fantasy hair bun. The research adopts the Research and Development (RD) method with the ADDIE procedure, which consists of Analyse, Design, Development, Implementation, and Evaluation stages. The research design used a Quasi-Experiment. The results of the feasibility test, based on assessments by three experts, produced an average score of 3.64, indicating a highly feasible category. The practicality test results, conducted with 36 students, produced a total score of 1909 with an average score of 53.2, falling under the highly practical category. The effectiveness test used the N-gain test which was carried out in both classes, namely the experimental class and the control class. The results of the N-gain calculation of the experimental class were 0.42 while the average N-gain of the control class was 0.10, so learning using the PjBL model teaching materials was more effective in improving student learning outcomes on bun material development research resulted in a product in the form of Project-Based Learning model teaching materials that have a positive and beneficial impact on fantasy hair bun learning activities. Based on the research findings, the developed Project-Based Learning teaching materials are highly feasible, highly practical, and effective for use in fantasy hair bun material learning.
Pemanfaatan Augmented Reality dalam Pendidikan Vokasi Arif Hidayat; Yeri Sutopo; Nur Qudus
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 6 No. 4 (2025)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol6iss4pp758-767

Abstract

The integration of Augmented Reality (AR) media in vocational education has emerged as a promising tool for enhancing learning experiences and aligning educational outcomes with industry demands. This study employs a qualitative approach to examine the benefits and challenges associated with the use of AR media in vocational education. Data were collected through in-depth interviews with educators, students, and education technology experts, supplemented by document analysis of curriculum frameworks and AR implementation case studies. The findings reveal several key benefits of AR in vocational education, including improved student engagement, enhanced skill acquisition through immersive simulations, and the ability to bridge the gap between theoretical knowledge and practical application. AR media also facilitates personalized learning, enabling students to progress at their own pace while fostering a deeper understanding of complex concepts. However, the study identifies significant challenges, such as high development costs, limited digital literacy among educators and students, and infrastructural constraints, particularly in resource-limited settings. Additionally, concerns regarding content standardization and the alignment of AR tools with curriculum objectives remain prevalent. The study concludes that while AR holds transformative potential for vocational education, its successful integration requires collaborative efforts among educators, policymakers, and technology providers. Recommendations include the development of cost-effective AR solutions, targeted training programs for educators, and robust policies to ensure equitable access and alignment with educational goals. This study contributes to the growing discourse on education technology, offering actionable insights for stakeholders seeking to leverage AR to enhance vocational education outcomes.
Co-Authors A., Annisa Anugrah Ade Novi Nurul Ihsani Afidah, Asti Dwi Ahmad Qosim, Ahmad Ain, Faridah Khurotul Alfian, Muhammad Habib Anggraeni, Nelly Setyowati Arif Hidayat Arif Hidayat Asih Suprapti Agustina, Asih Suprapti Asih, Dwi Putri Bambang Endroyo Bambang Haryadi Bambang Sugiyarto, Bambang Bayu Triwibowo Delta Apriyani, Delta Dewi Liesnoor Setyowati Dhoni Hartanto Dwi Widjanarko Dwi Wijanarko Eko Nugroho Julianto Eko Supraptono Erliana, Savira Rinda Fahrul Mukhadik Handayani, Sri Harianingsih, Harianingsih Hendriyanto, Bagus I Made Sudana Iman Taka, Buyung Ispen Safrel Khumaedi - Kristanto, Virgiawan Adi Kristianto, Virgiawan Adi Lailatul Romandhon, Bintari Febriaty Lenita Eka Mayasari Maria Krisnawati Mayasari, Retno Nina Hartini Nina Hartini Novia Restu Windayani, Novia Restu Pangestu, Indra Sakti Pratiwi, Wikanti Rangga, Sagita Ratna Dewi Kusumaningtyas Rini Kusumawardani, Rini Rodia Syamwil rohayati rohayati Rr. Dewi Artanti Putri, Rr. Dewi Artanti Samsudi . Samsudin Anis Siswoyo, Mohammad Pujo Sri Endah Wahyuningsih Sri Endah Wahyuningsih Sriyono, Sriyono Subagio, Triono Sukesi, Siti Supriyadi Supriyadi Syamrizal, Zakky Syarifatur Richana Syarifatur Richana Tri Mulyani Tugino Ubay, Isnina Noor Yeri Sutopo Zakaria, Zainul Akmar