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All Journal Jurnal Informatika Jurnal technoscientia Jurnal Teknologi Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Journal of Dedicators Community Dharma Bakti Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) IJITEE (International Journal of Information Technology and Electrical Engineering) JURNAL TEKNOLOGI TECHNOSCIENTIA Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Jurnal Pemberdayaan Umat Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Community Empowerment Jurnal Teknologi

Samuel Kristiyana

Institut Sains & Teknologi AKPRIND Yogyakarta

Author-ID : 300521

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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KENDALI KECEPATAN MOTOR PADA ROBOT DENGAN EMPAT RODA OMNI MENGGUNAKAN METODE PID Priyambudi, Aryono; Firman, Beny; Kristiyana, Samuel
Jurnal Teknologi Technoscientia Vol 10, No 2 (2018): Vol 10 No 2 Februari 2018
Publisher : IST AKPRIND YOGYAKARTA

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SISTEM DETEKTOR ARAH SINYAL RF MENGGUNAKAN ANTENA DOPPLER Kristiyana, Samuel
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 7 No 2 Februari 2015
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Two-Way Communication technology uses electromagnetic waves growing very rapidly. Various areas of public life, military and emergency purposes using the radio frequency spectrum, which would be very helpful. This communication system weakness, can not be used to emit a frequency along the same Waku. When this happens as a result of communication will be closed (jammed) for crowded frequency sometimes even no intent to disrupt a lot happening in the field of communication such as radio amateur frequencies. Directional Finder conventional radio has served for many years used to look for the direct nuisance frequency transmitter that has now been inefficient in terms of time and operations. Doppler system applications with Adaptive systems can be used as the basis for the work of Radio Stand Finder to detect the direction of the position of the RF transmitter without direct mobility. Roanoke Doppler antenna designed with a system of switching and amplifier signal reception by the arrangement of square-4 half-wavelength antenna that can determine the direction of the RF signal. Adaptive system can help lock the receiver system information is based on strong towards the greatest signal intensity.

REDUKSI DERAU DENGAN MENGGUNAKAN TAPIS ADAPTIF Kristiyana, Samuel
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscentia Vol 1 No 2 Februari 2009
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

In signal processing, often contaminated by other signal that has bad influence or called by noise. Noise will lose by using adaptive filter with predict method. This filter needs two inputs that are contaminated signal with delayed input as main input which use as training input and the other contaminated signal with input as reference input, so result of error is the success process of reduction noise. This filter use LMS filter of algorithm value variable with adapted process filter. Adaptive filter with predict method tested by noise signal. This filter tested by kind of variable value and Î¼. So, we will get a point of value, total of optimal value and also the Î¼ optimal value.

PENERAPAN SENSOR SHT 11 TERKENDALI MIKROKONTROLER SEBAGAI PENGKONDISI SUHU DAN HUMIDITAS RUMAH WALET Kristiyana, Samuel
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 3 No 1 Agustus 2010
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

The Walet bird`s nests are believed to have some healing power for a number of diseases. Therefore, they are highly valued commercially, so that the drive to collect them are very strong from hazardous places such as caves,cliffs, steep shoves, dense forests, etc. Efforts to give artificial homes for the Walet birds are promising for business, espe-cially for the much lower workers safety risks and more stable best`s quantity produced. Some challenges have to be able to overcome resorting to the regulating power of a mi-crocontroller. First of all, to atract the birds, the design of would be home should be stu-died thoroughly, including its location away from the disturbing human activities. Second, the right indoor atmosphere condition should be guaranteed. A set of hardware can be developed to provide a monitoring system on the temperature, humidity as well as the illumination level of the room dedicated for the Walet. To maintain the right temperature and humidity, an automatic water sprayer unit is added during the dry days of the year. A programmable Walet sound reproducing equipment is vital to safe the farmer`s time to operate it manually.

ANALISIS KAPASITAS UPLINK DAN DOWNLINK SISTEM SELULAR WCDMA ATAS KETIDAKSEMPURNAAN SEKTORISASI SEL Santoso, Gatot; Kristiyana, Samuel
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 6 No 2 Februari 2014
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

In this research analyzes the connection Wideband Code Division Multiple Access (WCDMA) for uplink and downlink with imperfect sectorization. Because all channels are on the same frequency, so when the active user increases, the performance of system will decrease. In other words, it causes the capacity of system will decrease. In CDMA terminology, the other frequency of Mobile Station (MS) will get effect to the active MS. The co-channel interference can be decrease with splitting the cell into several sectors. It is called the sectorization. But the sectorization can work well because the antenna radiation canâ€™t make the perfect angle and also there is existance of side lobe of radio frequency. The results show, the imperfect sectoration overlap angle between each neighboring sector decreases the capacity system cause more interference to overlapping sector pair. The knowledge gained is to neduce the large overlap angle and we can make the prediction the loss in cell capacity caused by interference.

PEMBUKTIAN POLA PANCARAN GELOMBANG RADIO (RF) MENGGUNAKAN METODE PELACAKAN SINYAL (TRACKING) DAN APLIKASI SURFER Kristiyana, Samuel
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscentia Vol 1 No 1 Agustus 2008
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Antenna is a physical structure made from metal conductor as a medium between of transmission electromagnetic wave of standing wave and as free space wave in the air which is capable of carrying information signal. The antenna structure will give specific ra-diation pattern around it. Radiation pattern cannot see with eyes but really can transmissi-on of signal so far. Radiation pattern of electromagnetic wave has understood using soft-ware application. Position of place observation and signal strength around of transmitter antenna are needed to analysis with tracking method.

RANCANG BANGUN SISTEM MONITORING SUHU DAN KELEMBABAN PADA RUANG SERVER BERBASIS IoT (INTERNET OF THINGS) Santoso, Gatot; Kristiyana, Samuel; Hani, Slamet; Mujahidin, Achmad Miradani
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 11 No 2 Februari 2019
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Room server is a room that is used to store server computers and network devices. Room server is important assets for companies or institutions that implement information technology as a support in their daily activities. The importance of that is because in the server room there are applications and databases that store all important and valuable information for the company or institution concerned, therefore the server room must always be in good condition. Design of temperature and humidity monitoring systemsis designed to detect changes in temperature and humidity in the room using ESP8266 Node MCU as the main control, then use DHT 11 as a temperature and humidity detection sensor, then the data will be sent to the Telegram application already installed on the smartphone and displayed in the LCD. If the MQ-2 gas sensor detects a smoke greater than 500 ppm, the buzzer active. With this tool, it is expected to be able to monitor the real time room temperature and humidity in the server room so that it can reduce the damage to the hard drive or other damage.

KENDALI KECEPATAN MOTOR PADA ROBOT DENGAN EMPAT RODA OMNI MENGGUNAKAN METODE PID Aryono Priyambudi; Beny Firman; Samuel Kristiyana
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 10 No 2 Februari 2018
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

In this research has been developed a system to conrol robot which have four wheel as a base for wheeled robot contest. The type of wheel is omni-wheel, they are shapeed with same distance each other. This system comonly have no stright movement and have no consistent aim-face of the robot in open loop control. The control system in this research use PID method to control the speed of each wheel. It use to make robot can move strightly and consistent of aim-face of the robot. The test on this system show that rotation speed of each wheel are equal to set point which set to PID control. With tune the paramater of PID with manual tuning method the system get 2.81% motor speed error. And get 0.66% error of aim-face of robot from forward and backward movement.

Co-Authors A. Rusyda, Annisa Rizka Adhi Susanto Agus Pratama, Wahyu Maulidi Aldi Rinaldi Andaru, Bagus Muh. Risqi Andhika Djalu Sembada Aryono Priyambudi Beny Firman beny firman, beny Catur Iswahyudi Denny Hardiyanto Didi Kurniawan Diky Rahmadi Diky Siswanto Dyah Anggun Sartika Edhy Sutanta (Jurusan Teknik Informatika IST AKPRIND Yogyakarta) Endang Widayati Gatot Santoso Hadi Saputra Hariyanto, Satriawan Dini Hariyanto Indriyaningsih, Dyah Jussac Maulana Masjhoer Maulana Maliq F MUHAMMAD SHOLEH Muhammad Suyanto Mujahidin, Achmad Miradani Mujahidin, Achmad Miradani Prabowo, Fajar Yulianto Prakoso, Aditha Agung Prastyono Eko Pambudi Priyambudi, Aryono Priyanto, Sabda Elisa Purnawan Risanuri Hidayat Rusyda, Annisa Rizka Alhimna Septiono Eko Bawono Setyowati Rahayu, Suparni Slamet Hani, Slamet Sri Mulyaningsih Sulistyaningsih, Eka Sunarno Sunarno Suparni Setyowati Rahayu Toto Rusianto Trisuryani, Slamet Hani Wahyuningtyas, Dewi Wiwik Handajadi

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