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Application of Chopper Machinery Technology from Oil Palm Fronds in Huta Gondang Rejo Nagori Bandar Tongah Bandar Hands, Regency of Simalungun Ariani, Farida; Tugiman; Tafsin, Ma'ruf; Susilo, Hariadi; Bayu, Eva Sartini; Tulus
Journal of Saintech Transfer Vol. 1 No. 2 (2018): Journal of Saintech Transfer
Publisher : Talenta Publisher Universitas Sumatera Utara

This community service activity aims to improve the efficiency of cattle farm business in Huta Gondang Rejo Nagori Bandar Tongah Bandar Huluan Subdistrict Simalungun Regency through the use of pellet complete feed based on palm oil fronds and agricultural waste. This activity is conducted on cattle ranchers who are members of the farming community group Huta Gondang Rejo. Farmers are given counseling and training on the processing of palm oil fronds and agricultural waste into livestock feed and the establishment of a complete ration of palm-based pellet and agricultural waste. To facilitate the transfer of this technology to the breeder, then prepared a complete feed pellet with 5 types of machines. Palm Crusher Counter Machines or Palm Crafter Engines with a capacity of 600 kg/hour. Pellet printing machine (granulator) with capacity of 100 kg/hour. Mixer machine (mixer feed) with a capacity of 50 kg/stir. Dryer (Oven) with capacity of 10 kg/rack. Manual press feed press tool with specification 2 kg/print. Measuring the success of this activity is seen from the level of farmer adoption of pelleting technology and the difference of ration conversion between cattle that get complete feed and conventional or traditional. Performance of palm cropping machine for cattle that get complete pellet feed is better than cattle that get conventional or traditional feed. This Chopper machine can count the palm stem from the tip of the base of the leaf to the stem (80% of the palm stem). Through the activities of plant waste feed technology is expected to achieve some outcomes, namely, improve the productivity of farming through the system integration of livestock combine farming system with synergistic system to form an effective, efficient and environmentally friendly.

MAKING LEARNING TEACHING MATERIALS IN SCHOOL BASED ON INFORMATION AND COMMUNICATION TECHNOLOGY Tulus; Sawaluddin; Marpaung, T.J.; Syahputra, M.R.
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2018): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

In the world of education now learning methods do not only use conventional methods such as from textbooks and teacher explanations, but also with effective and efficient learning methods using information technology. An example is multimedia-based learning media. Community service is one way that can be used to carry out information technology socialization. The community service that will be carried out in this study is entitled Easy and Interesting Mathematics Learning Through Animation. For elementary school students, with the aim of helping students in the learning process of mathematics that is more interesting interactive and fun, because in general lower elementary school students view mathematics lessons are difficult and boring learning. In this service, a learning media for mathematics will be created that includes the problem of building and space in accordance with the existing curriculum. Learning applications that are built include material, training, and tests, in accordance with applicable competency standards. Furthermore, training will be given to several elementary schools, as a briefing on how to use this learning system application so as to increase student motivation and ultimately improve student achievement and improve education quality.

ANEKA KERIPIK TEMPE BERGIZI DAN TEPAT GUNA MENDUKUNG KEDAULATAN PANGAN Siregar, Ameilia Zuliyanti; Tulus
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2018): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Tempe adalah produk lokal, makanan Soja sp berprotein tinggi. Tempe yang dihasilkan dapat diolah menjadi aneka makanan, seperti kerupuk, keripik, stik, bolu, tempe bacem, dan mendoan. Tingginya permintaan pasar, keterbatasan alat, terbatasnya inovasi dalam pengolahan tempe dan pemasaran tidak maksimal menjadi alasan dilaksanakan pengabdian oleh Lembaga Pengabdian Kepada Masyarakat, Universitas Sumatera Utara di di Pasar 1 Tanjung Sari, Medan. Tujuan pengabdian ini untuk memberi solusi kepada mitra usaha dalam pengolahan dan pembuatan tempe; meningkatkan kemampuan dan kreatifitas wirausahawan muda (mahasiswa) untuk mengelola keterampilan dan managerial. Dalam mendukung tercapainya target, solusi yang tim lakukan adalah membuat sebuah mesin pemecah kedelai, alat pemotong keripik, membantu desain kemasan, dan pemasaran dengan variasi harga tempe mendoan, keripik tempe, tempe rasa teh hijau, tempe cabe merah, dan tempe coklat (Rp 2.000-Rp 20.000). Diharapkan Rumah Tempe USU akan memberi kontribusi peningkatan pengetahuan, keterampilan dan pendapatan bagi mitra dan masyarakat di sekitar kampus USU.

Utilization of information technology in implementation active learning in private vocational school, PTPN 4 private vocational school Dolok Ilir in dealing with industrial revolution 4.0 era Tulus; Marpaung, Tulus Joseph Herianto; Sawaluddin; Syahputra, Muhammad Romi; Zarlis, Muhammad
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

After the millennium era, the development of information technology (IT) was sufficient quickly, changes in business patterns have also increased sharply. This is called the disruption era. IT technology has also penetrated the world of Education, both in management too learning method. In the world of education now the learning method is not only using conventional methods such as from textbooks and explanations from teachers only, but also with effective learning methods and efficiently by utilizing information technology. An example is the media multimedia based learning. Community service is wrong one way that can be used to carry out information technology correctional. Community service that will be carried out in this study is entitled Utilization of Information Technology in the Implementation of Active Learning in Schools PTPN4 Dolok Ilir Private Middle School In the Face of the Industrial Revolution Era 4.0, with the aim of helping teachers in the process of learning mathematics more interesting interactive and fun, because in general middle school students The first has many uses of telecommunications equipment that is equipped with various kinds of multimedia. The result of this service learning media will be made mathematics that includes the problem of building and space in accordance with the curriculum Junior high school.

Utilization of information technology in implementation active learning in private vocational school, PTPN 4 private vocational school Dolok Ilir in dealing with industrial revolution 4.0 era Tulus; Marpaung, Tulus Joseph Herianto; Sawaluddin; Syahputra, Muhammad Romi; Zarlis, Muhammad
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

After the millennium era, the development of information technology (IT) was sufficient quickly, changes in business patterns have also increased sharply. This is called the disruption era. IT technology has also penetrated the world of Education, both in management too learning method. In the world of education now the learning method is not only using conventional methods such as from textbooks and explanations from teachers only, but also with effective learning methods and efficiently by utilizing information technology. An example is the media multimedia based learning. Community service is wrong one way that can be used to carry out information technology correctional. Community service that will be carried out in this study is entitled Utilization of Information Technology in the Implementation of Active Learning in Schools PTPN4 Dolok Ilir Private Middle School In the Face of the Industrial Revolution Era 4.0, with the aim of helping teachers in the process of learning mathematics more interesting interactive and fun, because in general middle school students The first has many uses of telecommunications equipment that is equipped with various kinds of multimedia. The result of this service learning media will be made mathematics that includes the problem of building and space in accordance with the curriculum Junior high school.

Models in active learning in schools Marpaung, Tulus Joseph; Tulus; Zarlis, Muhammad; Sawaluddin; Syahputra, Muhammad Romi
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

The model is part of a learning structure that has a scope large. Inside there are approaches, strategies, methods, and techniques. One of an important aspect of a learning model is syntax, which is standard steps that must be taken in implementing the model. This syntax should be reflected in the steps of learning in particular detailed in the core learning activities. The results achieved in this activity are the teacher has the ability to develop scenarios or core steps active learning that uses certain learning models through the use of supporting media in teaching and learning activities

The Environmental Impact of Palm Oil: Introduction for Students of Tasmania University, Australia Chalil, Diana; Barus, Riantri; Nababan, Ester Sorta Mauli; Sembiring, Pramio Garson; Hasanuddin; Sofyan, Rudy; Tulus
Journal of Saintech Transfer Vol. 3 No. 2 (2020): Journal of Saintech Transfer
Publisher : Talenta Publisher Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jst.v3i2.3953

Palm oil is one of the most demanded commodities globally, which has led to a significant increase in its production and raised issues regarding its environmental impact. However, many of these issues are not based on substantial evidence. To provide a proportional picture on the oil palm industry, Universitas Sumatera Utara (USU), the University of Tasmania (UTAS) and the Association of Indonesian Palm Oil Entrepreneurs (GAPKI) have collaborated to carry out this program. The program was conducted for seven days through classroom lectures and field trip activities, involving 14 students and two supervisors from UTAS and four USU students. Pre and post-tests were conducted to evaluate the impact of the program. The results showed changes in participants' knowledge and perception regarding the environmental, social, and economic effects of the oil palm industry. Therefore, this program could be considered an effective counter to misleading Indonesian palm oil industry issues.

Development of The Steepest Descent Method for Unconstrained Optimization of Nonlinear Function Evada, Zakiah; Tulus; Herawati, Elvina
Sinkron : jurnal dan penelitian teknik informatika Vol. 6 No. 3 (2022): Article Research Volume 6 Number 3, July 2022
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v7i3.11596

The q-gradient method used a Yuan step size for odd steps, and geometric recursion as an even step size (q-GY). This study aimed to accelerate convergence to a minimum point by minimizing the number of iterations, by dilating the parameter q to the independent variable and then comparing the results with three algorithms namely, the classical steepest descent (SD) method, steepest descent method with Yuan Steps (SDY), and q-gradient method with geometric recursion (q-G). The numerical results were presented in tables and graphs. The study used Rosenbrock function f(x)=〖(1-x_1)〗^2+100〖(x_2-〖x_1〗^2)〗^2 and determined μ=1,σ_0=0.5,β=0.999, the starting point (x_0) with a uniform distribution on the interval x_0= (-2.048, 2.048) in R^2, with 49 starting points (x_0) executed using the Python online compiler on a 64bit core i3 laptop. The maximum number of iterations was 58,679. Using tolerance limits as stopping criteria is 10-4 and the inequality 〖f(x〗^*)>f to get numerical results. q-GY method down ward movement towards the minimum point was better than the SD and SDY methods while the numerical results of the Rosenbrock function showed good enough performance to increase convergence to the minimum point

A Mathematical Approach to Dampening Sea Waves Using Submerged Permeable Breakwater Marpaung, J.L.; Tulus; Gultom, Parapat
Sinkron : jurnal dan penelitian teknik informatika Vol. 7 No. 3 (2023): Article Research Volume 7 Issue 3, July 2023
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v8i3.12489

A wave is an energy that can propagate with a medium; the propagation of a wave moves with respect to time by carrying energy that moves with velocity per unit of time. Sea waves are one of the propagating wave problems that are broken down to produce wave propagation with a relatively inhomogeneous minimum amplitude and speed of sea waves, which have their own difficulties in solving them numerically. This study aims to analyze the stability of wave propagation on submerged breakwaters. This research will approximate the finite discretization of the breakwater domain and then combine it with the Finite Element Method to determine the moving elements of the velocity of fluid flow through a porous submerged breakwater. The research has explained the equation of the inflated wave and the simulated representation displayed on the wave breakdown process, the point that becomes the center of the waves breakdown will give a focused red color indicator meaning there is a change in momentum and potential energy that occurs and then changes the colour of the post-flattering of the sea wave so that the sinking wave breaker is a method to obtain the minimum speed and amplitude values that can be used for coastal engineering.

Robust Regression on Simple Housing Environmental Performance Measurement Hrp, Hafizah Miranda Putri; Nababan, Esther Sorta Mauli; Tulus
Sinkron : jurnal dan penelitian teknik informatika Vol. 8 No. 2 (2024): Article Research Volume 8 Issue 2, April 2024
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v8i2.13725

Robust regression in residential environmental performance measurement can provide significant benefits. This method can help identify and overcome uncertainties in measurement results so that decision making related to environmental protection and management can be done more accurately. This type of research is quantitative with a descriptive approach. The results of this study indicate that the results of the M-estimate robust regression estimation on simple housing environmental performance obtained the M-estimate robust regression equation, namely ŷ = 15.562+0.476X1-0.453X2+0.222X3-0.427X4. Based on the p-value test results, it shows that population attributes, house attributes, energy consumption volume and utilities and services have a significant effect on environmental performance. The results of the hypothesis testing of the M-estimation robust regression method on the environmental performance of simple housing obtained that the variables of population attributes and energy consumption volume have a positive and significant effect on environmental performance while the variables of house attributes and utilities and services have a negative and significant effect on environmental performance.

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