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1. Stability of Water Flow in Tanks Using Particle Swarm Optimization (PSO) Method

Author

Siswanto Markhaban, Ali Machrus, Agil Haikal Muhammad, Wahyudi Slamet, Soedarsono, and Ruswandi Djalal Muhammad

Subjects
Environmental sciences, GE1-350
Abstract

The stability of the speed and pressure of the water flow is determined by the height and volume of the water. The speed of water flow in the actuator is determined by the use of this flow sensor system. A good tank-based water flow control model must be developed. At a certain point, the actuator stabilizes the water production rate per minute. Therefore, it is necessary to develop automatic and precise control techniques. Many Artificial Intelligence (AI) methods are used in system optimization. Among them are the Firefly Algorithm (FA) and Particle Swarm Optimization (PSO). In this research, conventional methods, Auto tuning methods, and PSO methods are used. The PSO method produces better optimization compared to the previous method. The water flow stability indicator in this simulation is shown by the size of the overshot and undershot values for each method. The best water level control simulation results are the PSO method with the smallest overshot value of 0.0333 pu, the smallest undershot value of 0.0347 pu, and the output flow results have the smallest overshot value of 0.0013 pu, the smallest undershot value of 0.0011 pu.

Published
2024
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15. Nurses Barrier: A Patient Safety Concern in The Intensive Care Unit

Author

Gunawan Gunawan, Hanik Endang Nihayati, Listianingtri Puspitasari, and Muhammad Ali Machrus

Abstract

Patient safety became one of the most important indicators in maintaining the quality of nursing service in the hospital. Patient, individual staff, team, task and technology, work environment, organizational and management, and institutional context factors are all examples of obstacles nurses encounter when attempting to ensure patient safety in the hospital setting. Lastly, nurses should put concern in patient safety to make sure the quality by considering the behaviour and refer to Laurence Green Theory.

Published
2022

17. Profile of Interleukin-4 and Interferon-γ of Balb/c Mice after Salivary Gland Extract of Anopheles sundaicus s.l. Vaccination and Infected by Plasmodium berghei-ANKA

Author

Ali Machrus, Adrial Adrial, Yunita Armiyanti, Hidayat Teguh Wiyono, and Kartika Senjarini

Subjects
Science
Abstract

Malaria infection is initiated when sporozoites are inoculated into a vertebrate host via the salivary glands of an Anopheles mosquito. During Anopheles bite, the salivary glands release components that include vasomodulator and immunomodulators. The salivary components of vectors have important role in transmission of pathogen. Therefore, if these components were injected repeatedly into a vertebrate host, it can stimulate host immune system and inhibit the transmission of the pathogen into the host. This could be observed the increasing level of IFN-γ and decreasing level of IL-4 in mice model of malaria after vaccination with salivary gland ekstract (SGE) from An sundaicus s.l. It has also been proven that this mechanisms was related with pathogen of malaria. This was supported by the reduction of parasitemie rate in those mice model after infection by P. Berghei. Keywords: An sundaicus s.l., IFN-γ, IL-4,immunomodulators, salivary gland , TBV

Published
2014
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39. Algoritma Persaingan Imperialis Sebagai Optimasi Kontroler PID dan ANFIS Pada Mesin Sinkron Magnet Permanen (Imperialist Competitive Algorithm As PID Optimization and ANFIS Controller at Permanent Magnet Synchronous Machine)

Author

Ali, Machrus, Raikhani, Agus, Budiman, Budiman, Sopian, Hendi, and Universitas Darul ulum, Jombang

Subjects
Electrical Engineering, Power System Engineering, Artificial Intelegence, Renewable Energy, Control System, Informatics Engineering, Artificial Intelligence, ANFIS, Imperialist Competitive Algorithm, PID Controller, Permanent Magnet Synchronous Machine, Artificial Intelligence for Power System Engineering
Abstract

Permanent Magnet Syschronous Machine (PMSM) has low torque, so good control is needed to be stable quickly. PMSM uses the principle of faraday experiments which is rotating a magnet in a coil or vice versa. When a magnet moves in a coil, there is a change in magnetic flux in the coil and penetrates perpendicular to the coil so that there is a potential difference between the ends of the coil, regarding this due to changes in magnetic flux. Magnetic flux can be changed by moving a magnet in a coil or vice versa by utilizing other energy sources. To get a good optimization result, the right control constants are needed. So that the best output is obtained. To get the right constants, a suitable and good method is needed, including using artificial intelligence. In this study using the Imperialist Competitive Algorithm (ICA) method. From the simulation results it was found that the best controller design in this study was ANFIS-ICA with the best profile, torque profile, voltage profile, and rotation profile. The largest current is 2.45 A, the smallest overshot torque is 0.48 pu, the largest voltage frequency is 9.84 khz, and the best rotation (close to the reference) is 700.02 rpm. The results of this study will be continued with the use of other artificial intelligence.

Published
2019
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50. PENERAPAN LESSON STUDY UNTUK MENINGKATAN KEMAMPUAN MENGAJAR MAHASISWA CALON GURU FISIKA

Author

Agung Ryskiadi, Rif’ati Dina Handayani, Rifan Acik, and Ali Machrus

Subjects
Calon guru fisika, Lesson Study, Kemampuan Mengajar, Pre-service Physics Teacher, Teaching Ability, lcsh:L, lcsh:L7-991, lcsh:Education (General), lcsh:Education
Abstract

Lesson study is a development model for educators through sustainable and collaborative learning. Lesson study was conducted in three phases, namely the plan, do, see phase, in which these phases were implemented in a structured, cyclical and continuous manner. In this study, the subject of lesson study implementation were four Physics pre- service conducted teaching practice in one of public junior high schools in Bondowoso. Results showed that lesson study implementation enhance these physics pre-service teachers teaching ability from poor to excellent. Keywords : Lesson Study, Pre-service Physics Teacher, Teaching Ability ABSTRAK Lesson study merupakan suatu model pengembangan kemampuan mengajar melalui pengkajian pembelajaran secara kolaboratif dan berkelanjutan. Lesson study dilaksanakan dalam tiga tahapan, yaitu plan, do, see yang dilaksanakan secara terstruktur, bersiklus dan berkelanjutan. Dalam penelitian ini subjek dari pelaksanaan lesson study adalah empat orang mahasiswa calon guru fisika yang sedang melaksanakan PPL di salah satu SMP Negeri di Bondowoso. Hasil penelitian menunjukkan bahwa penerapan lesson study dapat meningkatkan kemampuan mengajar mahasiswa calon guru fisika dari kriteria kurang baik menjadi kriteria sangat baik. Kata kunci : Calon guru fisika, Lesson Study , Kemampuan Mengajar

Published
2015
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