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PENGARUH VOLUME TABUNG UDARA TERHADAP EFISIENSI POMPA HIDRAM Efendi, Hidir; Tambunan, Bisrul Hapis
ENGINEERING Vol 8, No 1 (2014): April
Publisher : Universitas Pancasakti Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (593.327 KB)

Performasi dari pompa hidram sangat dipengaruhi oleh beberapa hal antara lain debit air, ketinggian sumber air, ketinggian tangki penampung, dimensi dan berat katup, dimnsi dan volume tabung udara serta pengaruh friksi yang tinggi dan kehilangan tekanan tambahan pada pipa suplai dan katup. Penurunan efisiensi juga dipengaruhi oleh kehilangan energi kinetik dengan adanya air yang meninggalkan katup buang. Untuk itulah perlu didapatkan nilai yang paling optimum dari beberapa parameter di atas, sehingga diharapkan diperoleh efisiensi yang paling tinggi. Penurunan efisiensi juga dipengaruhi oleh kehilangan energi kinetik dengan adanya air yang meninggalkan katup buang. Penelitian ini bertujuan untuk mengetahui pengaruh volume tabung udara terhadap efisiensi pompa hidra dilakukan dengan menggunakan dua buah tabung udara yang panjangnya 400 dan 600 mm dengan diameter 60 mm, sehingga dihasilkan volume 1,13 dan 1,70 liter. Berat katup buang dan hantar masing-masing 760 dan 39 gram. Head suplai diposisikan pada ketinggian 1 m, sedangkan head hantar pada ketinggian 3 m. Hasil pengujian menunjukkan memperbesar volume tabung udara dapat meningkatkan efisiensi. Kata kunci: Pompa hidram, efisiensi, energi kinetik, tabung udara.

Pengembangan Blog Sebagai Ruang Kelas dalam Pembelajaran Online Mulyana, Rachmat; Harahap, Rumila; Sarwa, Sarwa; Emilia, Esi; Nusri, Ardi; Efendi, Hidir
Jurnal Pendidikan Tambusai Vol. 4 No. 3 (2020): December 2020
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.173 KB)

Keberadaan ruang kelas sebagai ruang tatap muka akan berganti menjadi "cyber classroom" di era pendidikan abad 21. Penelitian bertujuan untuk: (1) mengembangkan perangkat pembelajaran berbasis IT dan (2) mengembangkan Blog sebagai ruang perkuliahan online. Penelitian ini merupakan penelitian pengembangan. Perangkat pembelajaran yang dikembangkan berupa matakuliah Dasar Perancangan dan Rekayasa lingkungan. Data dianalisis menggunakan statistik deskriptif. Hasil pengembangan perangkat pembelajaran berupa materi perkuliahan dalam bentuk handout, panduan kuliah mini research, perangkat evaluasi. Media pembelajaran berupa video pembelajaran dan powerpoint sebanyak 8 kali pertemuan, yang dipublikasikan ke web 2.0. Hasil uji coba menunjukkan bahwa secara umum blog sudah memenuhi kelayakan berdasarkan aspek konten pembelajaran, organisasi blog, desain dan tampilan,navigasi dan pemograman, serta tautan. Simpulan bahwa keberadaan blog sebagai ruang kelas dalam pembelajaran online sangat membantu para mahasiswa dalam memahami materi tanpa dibatasi ruang dan waktu.

Pengembangan Blog Sebagai Ruang Kelas dalam Pembelajaran Online Mulyana, Rachmat; Harahap, Rumila; Sarwa, Sarwa; Emilia, Esi; Nusri, Ardi; Efendi, Hidir
Jurnal Pendidikan Tambusai Vol. 4 No. 3 (2020): December 2020
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v4i3.3164

Keberadaan ruang kelas sebagai ruang tatap muka akan berganti menjadi "cyber classroom" di era pendidikan abad 21. Penelitian bertujuan untuk: (1) mengembangkan perangkat pembelajaran berbasis IT dan (2) mengembangkan Blog sebagai ruang perkuliahan online. Penelitian ini merupakan penelitian pengembangan. Perangkat pembelajaran yang dikembangkan berupa matakuliah Dasar Perancangan dan Rekayasa lingkungan. Data dianalisis menggunakan statistik deskriptif. Hasil pengembangan perangkat pembelajaran berupa materi perkuliahan dalam bentuk handout, panduan kuliah mini research, perangkat evaluasi. Media pembelajaran berupa video pembelajaran dan powerpoint sebanyak 8 kali pertemuan, yang dipublikasikan ke web 2.0. Hasil uji coba menunjukkan bahwa secara umum blog sudah memenuhi kelayakan berdasarkan aspek konten pembelajaran, organisasi blog, desain dan tampilan,navigasi dan pemograman, serta tautan. Simpulan bahwa keberadaan blog sebagai ruang kelas dalam pembelajaran online sangat membantu para mahasiswa dalam memahami materi tanpa dibatasi ruang dan waktu.

THE RELATIONSHIP OF LEARNING INTEREST AND ENGINEERING IMAGES LEARNING OUTCOMES WITH FORMING AND ASSEMBLY LEARNING RESULTS IN CLASS XI METAL FABRICATION ENGINEERING EXPERTISE PROGRAM SMKN 1 LUBUK PAKAM Efendi, Hidir; Syahputra, Dedi
Journal of Community Research and Service Vol 3, No 2: July 2019
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v3i2.33038

This study aims to determine the magnitude of (1) the relationship of learning interest with learning outcomes of formation and assembly (2) the relationship of learning outcomes of engineering drawing with learning outcomes of formation and assembly, (3) the relationship of interest in learning and learning outcomes of engineering drawing with learning outcomes of shaping and assembly. assembly. The population of this study was students of class XI majoring in Metal Fabrication Engineering at SMK Negeri 1 Lubuk Pakam, amounting to 36 people. Before this research was conducted, the instrument was tested on respondents who were not the research sample, namely the class XI students of SMK Negeri 1 Percut Sei Tuan, totaling 27 people. The research method used is correlational research. The research findings show that: (1) there is a relationship between interest in learning and learning outcomes of formation and assembly with a correlation coefficient of 0.719 with a coefficient of determination of 0.517. This means that 51.7% of learning outcomes of formation and assembly are determined by students' interest in learning. The coefficient of determination is also statistically significant which is indicated by a significance value of 0.000 which is below 0.05. 2) there is a significant relationship between the learning outcomes of engineering drawing and the learning outcomes of forming and assembling with a correlation coefficient of 0.598 with a coefficient of determination of 0.358. This means that 35.8% of the learning outcomes of constructing and fitting are determined by the learning outcomes of technical drawings. The coefficient of determination is also statistically significant which is indicated by a significance value of 0.000 which is below 0.05. (3) there is a relationship between interest in learning and learning outcomes of technical drawing together with learning outcomes of forming and assembly techniques with the regression equation obtained is . The results showed that interest in learning and learning outcomes of engineering drawings had a significant relationship with learning outcomes of forming and assembly techniques. This is indicated by the results of the F test where the calculated F value is 21.021 > 3.28 F table. Thus, there is a positive and significant relationship between interest in learning and learning outcomes of technical drawing together with learning outcomes of forming and assembling students of class XI of the Metal Fabrication skill program for students of SMK Negeri 1 Lubuk Pakam.

PROVIDING SUPPLEMENTARY FOOD TO NUTRITIONAL CHILDREN AND APPLICATION OF FOOD PROCESSING PROCESS TECHNOLOGY AND ECONOMIC EMPOWERMENT Purba, Rasita; Efendi, Hidir
Journal of Community Research and Service Vol 6, No 1: January 2022
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v6i1.32795

Abstract— Fish has good potential to overcome malnutrition problems such as lack of energy and protein (PEM), lack of vitamin A, disorders due to lack of iodine, and nutritional anemia, while tempeh-based formulas can shorten the duration of acute diarrhea and accelerate weight gain after suffering from one illness. episodes of acute diarrhea. Tempe and fish are easier to digest because of their high content of free fatty acids, peptides, and amino acids. The objectives of this IbM activity are (1) the design of more spin machines, (2) the production of forte cookies and fish meal cookies, (3) the production of various processed fish, packaging, and nutritional status. Specific targets to be achieved; There are variations of PMT Toddlers to improve the nutritional status of toddlers, production of processed fish through the application of food processing technology, packaging, and economic empowerment of fishing communities. The approach method used is the method of education, production training, business management training, design, and assistance. The results of this IbM program activity are more spin machines with a drying capacity of 10 kg/30 minutes, additional food products (PMT) for toddlers in the form of forte cookies, fish flour cookies, and various processed fish products. Conclusion: Organoleptic tests for taste, aroma, texture, and color, showed positive responses from IbM partners and participants, as well as responses from local people who tasted the product. The nutritional knowledge of the cadres is good (87.3%), making forte and fish meal (91%), making various kinds of processed fish (91.6%). The nutritional status of children under five is still under the category of malnutrition (36%). Selling processed fish products is still (28%). The production of a variety of processed fish products will be an opportunity for new entrepreneurs for posyandu cadres and fishing communities to increase the income of fishing communities.

Corn Tortilla Processing Technology and Corn Chips at Farmer Group/Farming Women in Bekiung Village Kecamatan Kuala, Kabupaten Langkat, North Sumatera Efendi, Hidir; Fridiarty, Lelly; Jumjuma, Jumjuma
Journal of Community Research and Service Vol 5, No 2: July 2021
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v5i2.28328

The purpose of PKM activity is to develop the business of corn farmers/women in Bekiung village to be an economically independent business through the processing of tortillas and corn chips, the design of a corn flattening machine, the design of an amphia machine (to make thin), training in the production of tortillas and corn chips, training in business management and packaging. Specific targets to be achieved; build a corn flattening machine in order to increase corn production, construct an ampia machine, produce tortilla’s downstream and corn chips, manage marketing and packaging. The method used is education, production training, business management training, design and assistance. The results of the service carried out show that by providing knowledge, appropriate processing technology and business/marketing management, corn farmers/women are expected to be able to exploit the abundant agricultural products with low prices. One of the advantages of making food from corn is that the raw materials are easy to get and an added value farmers.

The Relationship of Learning Interest and Engineering Images Learning Outcomes with Forming and Assembly Learning Results in Class XI Metal Fabrication Engineering Expertise Program SMKN 1 Lubuk Pakam Efendi, Hidir; Syahputra, Dedi
Journal of Community Research and Service Vol 7, No 2: July 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v7i2.48113

The purpose of this research is to (1) establish a connection between student enthusiasm in learning and subsequent achievement in forming and assembling the connections between (2) learning outcomes in engineering drawings and (3) learning outcomes in formation and assembly, and (3) learning motivation and engineering drawing and formation and assembly outcomes. The 36 participants in this study were all students from Class XI at SMK Negeri 1 Lubuk Pakam who were majoring in Metal Fabrication Engineering. Students from Class XI at SMK Negeri 1 Percut Sei Tuan were used to test the instrument before it was administered to the research sample. Correlational analysis is the approach of choice for this study. First, a 0.719 correlation coefficient and a 0.517 coefficient of determination indicate that students' motivation to learn is associated with their success in forming and assembling knowledge. This suggests that curiosity accounts for 51.7% of the variance in the results of exercises involving group formation and assembly. The coefficient of determination is 0.000, which is less than 0.05, and statistically significant. The learning outcomes for engineering drawing and forming and assembling are significantly related to one another, with a correlation value of 0.598 and a coefficient of determination of 0.358, respectively. This means that the knowledge gained from studying technical drawings is crucial to the achievement of 35.8 percent of the knowledge gained from studying construction and fitting. The coefficient of determination is 0.000, which is less than 0.05, and statistically significant. Learning results for technical drawing and forming and assembly skills are positively related to student interest in learning, as shown by the regression equation Y=33.355+0.507 X_1+0.297 X_2. The outcomes of learning about forming and assembly processes were found to have a substantial association with the outcomes of learning about engineering drawings. The F value of 21.021 indicates this, and it is more than the cutoff value of 3.28 in the F table, therefore the F test supports this interpretation. Thus, for students in class XI of the Metal Fabrication skill program at SMK Negeri 1 Lubuk Pakam, there is a positive and statistically significant association between interest in learning and learning outcomes of technical drawing and learning outcomes of forming and assembly.

Effectiveness Test of Learning Devices in the Computer-Aided Manufacturing (CAM) Course Silaban, Robert; Pakpahan, Binsar Maruli Tua; Rahmi, Ana; Efendi, Hidir
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.11223

The aim of this research is to develop learning devices, including the syllabus, Semester Learning Plan (RPS), teaching materials, and assessments for the Computer Aided Manufacturing (CAM) course, whose suitability has been tested. The needs analysis is related to the transition from the Competency-Based Curriculum to the Indonesian National Qualifications Framework (KKNI) curriculum, which requires various adjustments. For instance, assessments in the Competency-Based Curriculum consist of four (4) components, while the KKNI curriculum includes six (6) components, with cognitive assessment contributing the most. In its implementation, the Competency-Based Curriculum uses learning devices aligned with its structure. With the adoption of the KKNI curriculum, it is deemed necessary to develop learning devices that support its implementation. This research employs the 4-D model as the basis for the development procedure. The results of the first stage, based on expert evaluations, indicate that the Semester Learning Plan and CAM teaching materials meet the criteria for being highly suitable as learning devices for the CAM course. Additionally, student evaluations confirm that the Semester Learning Plan and CAM teaching materials are appropriate for use as learning devices. The effectiveness test results show a significant increase in post-test scores compared to pre-test scores. Furthermore, the t-test analysis confirms a statistically significant difference between the average post-test and pre-test scores

Corn Tortilla Processing Technology and Corn Chips at Farmer Group/Farming Women in Bekiung Village Kecamatan Kuala, Kabupaten Langkat, North Sumatera Efendi, Hidir; Fridiarty, Lelly; Jumjuma, Jumjuma
Journal of Community Research and Service Vol. 5 No. 2: July 2021
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v5i2.28328

The purpose of PKM activity is to develop the business of corn farmers/women in Bekiung village to be an economically independent business through the processing of tortillas and corn chips, the design of a corn flattening machine, the design of an amphia machine (to make thin), training in the production of tortillas and corn chips, training in business management and packaging. Specific targets to be achieved; build a corn flattening machine in order to increase corn production, construct an ampia machine, produce tortilla™s downstream and corn chips, manage marketing and packaging. The method used is education, production training, business management training, design and assistance. The results of the service carried out show that by providing knowledge, appropriate processing technology and business/marketing management, corn farmers/women are expected to be able to exploit the abundant agricultural products with low prices. One of the advantages of making food from corn is that the raw materials are easy to get and an added value farmers.

PROVIDING SUPPLEMENTARY FOOD TO NUTRITIONAL CHILDREN AND APPLICATION OF FOOD PROCESSING PROCESS TECHNOLOGY AND ECONOMIC EMPOWERMENT Purba, Rasita; Efendi, Hidir
Journal of Community Research and Service Vol. 6 No. 1: January 2022
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v6i1.32795

Abstract” Fish has good potential to overcome malnutrition problems such as lack of energy and protein (PEM), lack of vitamin A, disorders due to lack of iodine, and nutritional anemia, while tempeh-based formulas can shorten the duration of acute diarrhea and accelerate weight gain after suffering from one illness. episodes of acute diarrhea. Tempe and fish are easier to digest because of their high content of free fatty acids, peptides, and amino acids. The objectives of this IbM activity are (1) the design of more spin machines, (2) the production of forte cookies and fish meal cookies, (3) the production of various processed fish, packaging, and nutritional status. Specific targets to be achieved; There are variations of PMT Toddlers to improve the nutritional status of toddlers, production of processed fish through the application of food processing technology, packaging, and economic empowerment of fishing communities. The approach method used is the method of education, production training, business management training, design, and assistance. The results of this IbM program activity are more spin machines with a drying capacity of 10 kg/30 minutes, additional food products (PMT) for toddlers in the form of forte cookies, fish flour cookies, and various processed fish products. Conclusion: Organoleptic tests for taste, aroma, texture, and color, showed positive responses from IbM partners and participants, as well as responses from local people who tasted the product. The nutritional knowledge of the cadres is good (87.3%), making forte and fish meal (91%), making various kinds of processed fish (91.6%). The nutritional status of children under five is still under the category of malnutrition (36%). Selling processed fish products is still (28%). The production of a variety of processed fish products will be an opportunity for new entrepreneurs for posyandu cadres and fishing communities to increase the income of fishing communities.

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