The effort to make cow dung has significant added value is the main purpose of this community service activity. The fact is still not much effort to increase the added value of cow dung such as making cow dung into organic fertilizer products with commercial value. Besides, this activity also aims to create a healthy community environment and provide an impact of economic improvement of local communities. Method of implementation of activity begins with observation and mapping area, socialization, implementation, analysis and evaluation, and improvement. The observations were conducted to review the Kalipucang Hamlet area as a whole, interviewing with all components of the community, such as village apparatus and villagers or viewing the field conditions directly as well as doing this mapping to clarify the situation and characteristics of Kalipucang Hamlet related to livestock and land, then socialized to the head of RT, Chairman of the RW, and the local village chief and community. Socialization also serves to explore more deeply about the problems experienced by the community and the solutions needed, so as to provide an output that is in accordance with the wishes and needs of the community. The location of the implementation of this program is in the cattle field of the group Andini Makmur, Kalipucang Hamlet, Bangunjiwo, Bantul, DIY. The series of activities of community service programs that will be carried out include several stages : organic fertilizer material delivery, construction of fertilizer production site, livestock collection, organic fertilizer practice, organic fertilizer monitoring, organic fertilizer cooperative system, launching and evaluation and mentoring. From this activity produced organic fertilizer and successfully established a cooperative that manages the process of making organic fertilizer, packing, until the commercialization. From this activity obtained significant added value in economic aspect as well as from the side of public health because no longer there is pollution from cow dung d neighborhood of residence. Keyword : Cow dung, organic fertilizer, community service, marketing. PENDAHULUANHewan ternak mengeluarkan kotoran dalam jumlah banyak sebagai hasil limbah. Pada ternak sapi, jumlah kotoran yeng dikeluarkan setiap hari berkisar 12% dari berat tubuh dan apabila tidak diolah dengan baik akan menjadikan limbah serta pencemaranlingkungan, karena kotoran ternak mengandung NH3, NH, dan senyawa
COVID-19 is a very dangerous respiratory disease that can spread quickly through the air. Doctors, nurses, and medical personnel need protective clothing and are very careful in treating COVID-19 patients to avoid getting infected with the COVID-19 virus. Hence, a medical telepresence robot, which resembles a humanoid robot, is necessary to treat COVID-19 patients. The proposed self-balancing COVID-19 medical telepresence robot is a medical robot that handles COVID-19 patients, which resembles a stand-alone humanoid soccer robot with two wheels that can maneuver freely in hospital hallways. The proposed robot design has some control problems; it requires steady body positioning and is subjected to disturbance. A control method that functions to find the stability value such that the system response can reach the set-point is required to control the robot's stability and repel disturbances; this is known as disturbance rejection control. This study aimed to control the robot using a combination of Proportional-Integral-Derivative (PID) control and a Kalman filter. Mathematical equations were required to obtain a model of the robot's characteristics. The state-space model was derived from the self-balancing robot's mathematical equation. Since a PID control technique was used to keep the robot balanced, this state-space model was converted into a transfer function model. The second Ziegler-Nichols's rule oscillation method was used to tune the PID parameters. The values of the amplifier constants obtained were Kp=31.002, Ki=5.167, and Kd=125.992128. The robot was designed to be able to maintain its balance for more than one hour by using constant tuning, even when an external disturbance is applied to it. Doi: 10.28991/esj-2021-SP1-016 Full Text: PDF
Blade design and material selection for savonius turbines need to accurate to produce high power input. This research aims to make the most robust blade material by vacuum infusion manufactured. The hybrid laminate composite applied in the manufacture of Savonius turbine blades consists of woven carbon fiber with chopped strand mat glass fiber and woven glass fiber. The variations of fiber composition comprised of five layers, namely 5An (5 layers of woven glass fiber), 5Ac (5 layers of chopped strand mat glass fiber), 2C-3An (2 woven carbon fiber-3 woven glass), and 2C-3Ac (2 woven carbon fiber-3 chopped strand mat glass fiber). The results showed 2C-3An for the best variation of hybrid laminate composite with the tensile strength of 219 MPa, with the modulus of elasticity of 6.8 GPa and the smallest density was 1.21 g/cm 3 .
Development of technology in the field of construction is increasingly advanced today, will not be separated from technology or welding techniques because it has a very important role in engineering and metal repairs.This study aims to determine the effect of electrode to tensile strength and hardness of SMAW welding on SS 400 steel. The material is given welding treatment with electrode variation E6013 and E7018 diameter of 3.2 mm by using SMAW DC reverse polarity ie the electrode holder is connected to positive pole and the parent metal is connected With a negative pole. The type of camp used is V. The highest tensile strength occurred in the specimens of raw materials that amounted to 432.49 MPa which increased by 10.41 MPa from group E7018. The highest yield strength occurred in the raw materials specimens of 308.53 MPa which had an increase of 9.31 MPa from the E7018 electrode variation group. The highest hardness level occurs in the weld metal part of E7018 electrode variation group that is equal to 189.6 kg /mm 2 . PENDAHULUANNegara Indonesia termasuk salah satu negara yang mempunyai potensi pengembangan dibidang konstruksi dan manufaktur. Sektor konstruksi dan manufaktur memiliki peranan penting dalam perekonomian negara karena mempengaruhi sebagian besar sektor perekonomian negara dan merupakan kontributor penting bagi proses pembangunan infrastruktur yang menyediakan fondasi fisik di mana upaya pembangunan dan peningkatan standar kehidupan dapat terwujud. Oleh karena itu, seiring dengan persiapan sektor konstruksi dan manufaktur menuju perkembangan lebih lanjut, kebutuhan akan material logam dan baja merupakan potensi bisnis yang dapat berpotensi pendongkrak pertumbuhan ekonomi nasional.Kemajuan teknologi pengelasan logam memberikan dampak yang positif terhadap kemudahan manusia dalam menjalankan aktifitas kehidupannya. Dewasa ini perkembangan ilmu pengetahuan di bidang konstruksi dan logam, tidak Dinamika Teknik Mesin 7 (2017) 73-79
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.