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<![CDATA[MODEL MATEMATIK UNTUK MEMPREDIKSI KEKASARAN PERMUKAAN HASIL PROSES CNC BUBUT PADA KONDISI PERMESINAN TANPA PENDINGIN ]]>
<![CDATA[Saputro, Herman]]>
<![CDATA[ PAWIYATAN Vol 20, No 1 (2013) ]]>
Publisher : <![CDATA[PAWIYATAN ]]>
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<![CDATA[Turning is one of the machining operations that widely used in variety of manufacturing industries. The quality of surface plays very important role in the performance of turning that significantly improves fatigue strength, and corrosion resistance. It is also affects functional attributes of parts such as light reflection, coating and heat treatment. This research aim to develop a mathematical model to predict surface roughness based on machining parameter selected (spindle speed, feed, and depth of cut) with cutting codition dry. The experiment was tested by using Trun Master TMC 320 Sinumerik 802 S machining center. After 27 specimens were cut for experimental purposes, they were measured off-line with a surface roughness tester to obtain the roughness average value. The surface roughness (Ra) could be predicted effectively by applying spindle speed (n), feed rate (Vf) and depth of cut (a) in the multiple regression model as: Y = -0.1228 â 0.0001 n + 20.940 Vf + 0.7444 a. The average percentage deviation of the testing set was 6.429 % for training data set This showed that the statistical model could predict the surface roughness with about 93.571 % accuracy of the testing data set. Keywords : CNC Turning, Surface Roughness, Multiple Linier Regression ]]>
<![CDATA[ MODEL MATEMATIK UNTUK MEMPREDIKSI KEKASARAN PERMUKAAN HASIL PROSES CNC BUBUT PADA KONDISI PERMESINAN TANPA PENDINGIN ]]>
<![CDATA[Saputro, Herman]]>
<![CDATA[ PAWIYATAN Vol 20 No 1 (2013) ]]>
Publisher : <![CDATA[PAWIYATAN ]]>
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<![CDATA[Turning is one of the machining operations that widely used in variety of manufacturing industries. The quality of surface plays very important role in the performance of turning that significantly improves fatigue strength, and corrosion resistance. It is also affects functional attributes of parts such as light reflection, coating and heat treatment. This research aim to develop a mathematical model to predict surface roughness based on machining parameter selected (spindle speed, feed, and depth of cut) with cutting codition dry. The experiment was tested by using Trun Master TMC 320 Sinumerik 802 S machining center. After 27 specimens were cut for experimental purposes, they were measured off-line with a surface roughness tester to obtain the roughness average value. The surface roughness (Ra) could be predicted effectively by applying spindle speed (n), feed rate (Vf) and depth of cut (a) in the multiple regression model as: Y = -0.1228 ââ¬â 0.0001 n + 20.940 Vf + 0.7444 a. Theàaverage percentage deviation of the testing set was 6.429 %àfor training data set This showed that the statistical model could predict the surface roughness with about 93.571 % accuracy of the testing data set.àKeywords : CNC Turning, Surface Roughness, Multiple Linier Regressionà]]>
<![CDATA[Fostering Entrepreneurial Interest: An Analysis of the Role of Entrepreneurship Education and Skills Competence ]]>
<![CDATA[Nurryna, Ayu Fiska]]>;
<![CDATA[Widiastusi , Indah]]>;
<![CDATA[Saputro, Herman]]>
<![CDATA[ Jurnal Pendidikan dan Pengajaran Vol 58 No 1 (2025): April ]]>
Publisher : <![CDATA[Universitas Pendidikan Ganesha ]]>
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DOI: 10.23887/jpp.v58i1.85395
<![CDATA[Many vocational students have low interest in entrepreneurship, despite having Entrepreneurship Education in the curriculum. It is important to understand the factors that influence entrepreneurial interest, including the role of Entrepreneurship Education and Expertise Competencies. This study aims to analyze the effect of Entrepreneurship Education and Expertise Competencies on entrepreneurial interest of vocational students, both individually and simultaneously. This research uses a quantitative design. The research subjects involved in this research are vocational students selected through cluster sampling technique totaling 211 students. The data collection method used is a questionnaire. The instrument used was a validated questionnaire sheet, and the data were analyzed using linearity test, ANOVA, and regression analysis to see the effect of independent variables on the dependent variable. The results showed that Entrepreneurship Education has a significant influence on students' entrepreneurial interest, while Expertise Competency has no significant effect individually. However, when analyzed simultaneously, these two variables show a significant influence in increasing entrepreneurial interest. In addition, significant differences were found in entrepreneurial interest among different skill groups. This study concludes that the integration between Entrepreneurship Education and Skill Competency in SMK curriculum is important to increase students' entrepreneurial interest. Future research is recommended to expand the geographical coverage and sample for greater validity as well as examine other variables that could potentially affect entrepreneurial interest.]]>
<![CDATA[Pemberdayaan Poktan Pengolahan Teh Hijau melalui Aplikasi Teknologi Penggulung Teh Berbasis IOT ]]>
<![CDATA[Riyadi Muslim]]>;
<![CDATA[Putri Suhita, Cahyaningtyas]]>;
<![CDATA[Saputro, Herman]]>;
<![CDATA[Fitriana, Laila]]>
<![CDATA[ Jurnal Bersama Pengabdian Kepada Masyarakat (SAMAMAS) Vol. 1 No. 4 (2025): Desember 2025 ]]>
Publisher : <![CDATA[Yayasan Literasi Sains Indonesia ]]>
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DOI: 10.55123/samamas.v1i4.220
<![CDATA[The revitalization of green tea production technology plays a pivotal role in fostering the enhancement of the quality and competitiveness of local products in Indonesia. Although Indonesia's green tea export earnings reached 69.01 million USD in 2023, this figure remains low compared to neighboring countries. Competitive trade in the global tea market requires improved production processing technology. This paper explains how the application of IoT-based green tea rolling technology can empower Poktan communities and align with the government's revitalization program. This community empowerment method is divided into six stages: 1). Preparation and production planning 2) Tool and Innovation Concept Development, 3) Innovation design, 4) Implementation, 5) Marketing digitalization, 6) Evaluation. This step is a breakthrough that will allow us to continue to be competitive by meeting the needs of consumers globally. Furthermore, the use of modern technology will help achieve SDG 7 (affordable and clean energy), SDG 9 (industry, innovation, and infrastructure), and SDG 13 (climate action) in the future.]]>
<![CDATA[Implementasi Sistem Penjaminan Mutu Internal pada Sekolah Menengah Kejuruan: Systematic Literature Review ]]>
<![CDATA[Nurryna, Ayu Fiska]]>;
<![CDATA[Widiastuti, Indah]]>;
<![CDATA[Saputro, Herman]]>
<![CDATA[ Social, Humanities, and Educational Studies (SHES): Conference Series Vol 7, No 3 (2024): Social, Humanities, and Educational Studies (SHEs): Conference Series ]]>
Publisher : <![CDATA[Universitas Sebelas Maret ]]>
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DOI: 10.20961/shes.v7i3.94118
<![CDATA[Sekolah Menengah Kejuruan (SMK) sebagai salah satu lembaga pendidikan vokasi yang memiliki peran strategis dalam mencetak tenaga kerja terampil sesuai dengan kebutuhan industri. Sistem Penjaminan Mutu Internal (SPMI) di SMK diperlukan untuk memastikan kualitas standar kompetensi lulusannya memenuhi atau melampaui Standar Nasional Pendidikan (SNP) dan juga dapat memenuhi kebutuhan industri. Artikel ini bertujuan untuk mendeskripsikan pelaksanaan SPMI di Sekolah Menengah Kejuruan. Metode penelitian yang digunakan adalah Systematic Literatur Review (SLR). Hasil penelitian berdasarkan 11 artikel yang telah di review menunjukkan bahwa pelaksanaan Sistem Penjaminan Mutu Internal di beberapa SMK belum efektif dikarenakan satuan pendidikan belum menerapkan sistem penjaminan mutu secara terpadu, sinergis, dan berkelanjutan. Sedangkan di beberapa SMK hasil dari pelaksanaan SPMI telah memberikan dampak yang positif terhadap kinerja dan reputasi sekolah. Dapat disimpulkan bahwa SPMI adalah sistem yang pelaksanaannya membutuhkan faktor pendukung terlebih dari internal yaitu seluruh stakeholder yang ada pada satuan pendidikan]]>
<![CDATA[Perbaikan Proses dan Alat Produksi Jamu Coro Minuman Khas Demak pada UMKM SITU JAMU di Desa Berahan Kulon, Kecamatan Wedung, Kabupaten Demak ]]>
<![CDATA[Saputro, Herman]]>;
<![CDATA[Fitriana, Laila]]>;
<![CDATA[Bugis, Husin]]>;
<![CDATA[Ranto, Ranto]]>;
<![CDATA[Muslim, Riyadi]]>
<![CDATA[ SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 12, No 2 (2023): November ]]>
Publisher : <![CDATA[LPPM UNS ]]>
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DOI: 10.20961/semar.v12i2.67605
<![CDATA[Berahan Kulon Village, apart from being known as a fishing and fish farming village, also has Micro, Small and Medium Enterprises (MSMEs) that produce herbal drinks known as Jamu Coro. Jamu Coro is made from rice flour and spices such as ginger, lemongrass, cinnamon, coconut sugar and coconut milk. This traditional drink has existed since the days of the Bintoro Sultanate and was served at meetings or events at the Demak Bintoro palace at that time. The existence of wedang herbal medicine coro is still maintained and preserved by the community. They are the conservators of herbal coro in Berahan Kulon Village by making herbal products in powder form. These MSMEs have problems with production equipment that is still completely manual and the production process is not good or hygienic. The problem is the quality of coro herbal products which are in the form of non-uniform powder. SMEs also find it difficult to develop large orders. Based on the society team at Sebelas Maret University, it intends to help SMEs Situ Jamu through the Community Partnership Program. It is hoped that it can improve the quality and quantity of herbal coro in powder form and improve the economy in Berahan Kulon. An output will be obtained in the form of appropriate technology for supporting the production of coro herbal medicine]]>
<![CDATA[Pelatihan Pembuatan Modul Interaktif Berbasis e-Publication Sebagai Suplemen Bahan Ajar MOOC Rumah Vokasi ]]>
<![CDATA[Saputro, Herman]]>;
<![CDATA[Bugis, Husin]]>;
<![CDATA[Siswanto, Budi]]>;
<![CDATA[Rohman, Ngatau]]>
<![CDATA[ SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 11, No 2 (2022): November ]]>
Publisher : <![CDATA[LPPM UNS ]]>
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DOI: 10.20961/semar.v11i2.56316
<![CDATA[Sekolah Menengah Kejuruan (SMK) bertugas menyiapkan siswa untuk siap bekerja di industri. Agar tugas itu dapat tercapai, proses pembelajarannya harus berbasis kompetensi kebutuhan industri dan KKNI level 2. Modul pembelajaran yang memenuhi syarat itu sangat diperlukan dalam proses pembelajaran, padahal modul tersebut saat ini tidak tersedia di sekolah. Untuk dapat menyusun dan mengembangkan modul tersebut perlu dilakukan pelatihan bagi para guru produktif.Pelatihan penyusunan modul interaktif pembelajaran berbasis KKNI dan kompetensi industri didasarkan pada rumusan indikator pembelajaran setiap KD diselaraskan dengan level kompetensi KKNI level 2 sekaligus juga dengan kompetensi industri. Jika ada perkembangan teknologi baru di industri otomotif, sementara di dalam daftar KD belum ada, bisa dan sebaiknya ditambahkan. Pelatihan diberikan kepada guru-guru SMK mitra di Surakarta, jumlahnya sekitar 10 orang. Modul interaktif berbasis e-publikasi digunakan dengan memanfaatkan MOOC Rumah Vokasi. Dengan demikian proses pembelajaran berbasis teknologi dapat meningkat kualitasnya sehingga kompetensi siswa akan meningkat. Kata kunci : e-publikasi; MOOC; modul]]>
<![CDATA[Penerapan Teknologi Pencacah Multi Blade Pada Proses Pengolahan Limbah Ikan sebagai Upaya Pemberdayaan Nelayan Di Desa Berahan Kulon, Kecamatan Wedung Kabupaten Demak ]]>
<![CDATA[Fitriana, Laila]]>;
<![CDATA[Saputro, Herman]]>;
<![CDATA[Bugis, Husin]]>;
<![CDATA[Siswanto, Budi]]>;
<![CDATA[Ranto, Ranto]]>;
<![CDATA[Muslim, Riyadi]]>
<![CDATA[ SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 12, No 1 (2023): Mei ]]>
Publisher : <![CDATA[LPPM UNS ]]>
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DOI: 10.20961/semar.v12i1.56315
<![CDATA[Desa Berahan Kulon Kec. Wedung Kab. Demak merupakan desa daerah pesisir pantai utara Jawa yang memiliki potensi perikanan yang cukup besar. Kegiatan usaha itu meliputi usaha perikanan air laut, air payau dan air tawar. Hasil tangkapan ikan laut setiap tahunnya tidak kurang dari 600 ton, serta budidaya ikan air tawar mencapai 97.6 ton per tahun. Potensi produksi ikan tersebut menyisakan limbah ikan dan kerang yang belum termanfaatkan dengan baik. Kegiatan yang dikeloala kelompok petani tambak dan nelayan tersebut juga memiliki masalah pada suplai dan harga pakan ikan yang selalu berubah-ubah. Akibat permasalahan tersebut usaha tambak yang dikelola melalui Kelompok Budidaya Ikan Margo mulyo mengalami kerugian. Adanya potensi dan permasalahan tersebut maka dilakukan kegiatan pengabdian masyarakat terkait kemandirian pakan ikan dengan penerapan teknologi mesin pembuat tepung ikan. Penerapan teknologi pencacah multi blade untuk memudahkan proses pengolahan limbah ikan tangkapan nelayan menjadi tepung ikan. Kegiatan kemitraan ini difokuskan bagaimana menyediakan alat produksi tepung ikan dan pelatihan produksi bagi nelayan. Kegiatan kemitraan UMKM Margo Mulyo Abadi dengan UNS ini mampu menjadi solusi akan isu yang berkembang, sekaligus mampu meningkatkan nilai ekonomis limbah ikan sehingga terdapat peningkatan pendapatan bagi para anggotanya. Kata kunci: Pemberdayaan; Teknologi Pencacah; multi-blade; limbah ikan; tepung ikan.]]>
<![CDATA[Pelatihan Pembelajaran Interaktif berbasis Masive Open Online Course (MOOC) Rumah Vokasi Untuk Sekolah Kejuruan ]]>
<![CDATA[Saputro, Herman]]>;
<![CDATA[Ranto, Ranto]]>;
<![CDATA[Bugis, Husin]]>;
<![CDATA[Wijayanto, Danar Susilo]]>
<![CDATA[ SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 13, No 2 (2024): November ]]>
Publisher : <![CDATA[LPPM UNS ]]>
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DOI: 10.20961/semar.v13i2.80183
<![CDATA[E-learning menjadi salah satu hal yang digagas mampu menjadi solusi dari permasalahan pembelajaran. Massive Open Online Course atau MOOC merupakan metode pembelajaran jarak jauh skala besar yang memungkinkan semua orang bisa mengakses. Penggunaan MOOC menjadi salah satu wujud dari perkembangan teknologi di dunia pendidikan. Perkembangan teknologi yang merambat di dunia pendidikan dapat mempengaruhi persepsi serta pengalaman peserta didik dalam pembelajaran. Permasalahan yang timbul pada SMK Bhinneka Karya Surakarta terkait dengan pembelajaran CNC adalah sebagai berikut: 1) Pada mata pelajaran teknik pemesinan CNC membutuhkan gambar ilustrasi untuk memudahkan memahami materi pelajaran. Sehingga banyak siswa yang mesih mengalami kebingungan dalam mengikuti pembelajaran. 2) Dibutuhkan platform belajar hybrid dengan memanfaatkan smart phone, untuk mendukung optimalisasi hasil belajar, khususnya mata pelajaran teknik pemesinan CNC. Hasil dari identifikasi masalah tersebut ditindak lanjuti oleh tim Pengabadi ECCEE dengan merancang desain program peningkatan kompetensi paedagogi. Peningkatan terhadap guru-guru ini dilakukan melalui tahapan-tahapn sebagai berikut: Tahap 1: Pengenalan dan pelatihan penggunaan MOOC Rumah Vokasi kepada Guru, Tahap 2: Pelaksanaan pembelajaran menggunakan MOOC Rumah Vokasi, dan Tahap 3: Evaluasi penggunaan MOOC Rumah Vokasi. Hasil pengujian implementasi aplikasi MOOC Rumah Vokasi terhadap hasil pembelajaran menunjukkan peningkatan yang positif. Pengalaman siswa terkait implementasi aplikasi MOOC Rumah Vokasi telah menjawab bahwa aplikasi MOOC Rumah Vokasi sangat mendukung pembelajaran di SMK dan juga mampu meningkatkan semangat anak untuk belajar. Kata kunci: e-Learning, Mosive Open Oline Corse, Sekolah Menengah Kejuruan (SMK)]]>
<![CDATA[Pengaruh Jumlah Sudu dan Pembebanan Terhadap Energi Listrik Yang Dihasilkan OlehTurbin Angin SumbuHorizontal Skala Mikro ]]>
<![CDATA[Aspriyanti, Vita Ayu]]>;
<![CDATA[Saputro, Herman]]>;
<![CDATA[Wijayanto, Danar Susilo]]>
<![CDATA[ Nozel : Jurnal Pendididikan Teknik Mesin Vol 3, No 3 (2021) ]]>
Publisher : <![CDATA[Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta ]]>
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DOI: 10.20961/nozel.v3i3.62970
<![CDATA[The needs of electrical energy particularly in Indonesia is very great and continues to increase every year. The development of a micro scale horizontal axis wind turbine can be a solution to solve that. This research has a purpose to find out the influence of number of blades and wind speed variation on electrical energy produced by micro scale horizontal axis wind turbines. The method which was used in this research was experiment method and it was implemented at the Laboratory of Study Program of Mechanical Engineering Education of Sebelas Maret University. The variable that was used in this research was by using blades with airfoil SG6043 with variations of blades number and the giving load in the form of 12v and 24v LED lights. The horizontal axis wind turbine rotor has a diameter of 800 mm and a blade length of 400 mm which is printed with 3D Printing PLA material. The data collection was implemented on the wind speed of 1 m/s to 5 m/s. The results of this research is the wind turbine that used 5 blades produced the highest power of 9.22 Watt at 24v loading and had the highest power performance value of 0.241 at maximum wind speed of 5 m/s. The number of blades and wind speed and loading could affect the electrical power produced by the turbine, the more blades and the higher the wind speed, the greater the power generated by the turbine.]]>
