Articles
<![CDATA[Penerapan Sharing Antenna BTS di Semarang ]]>
<![CDATA[Ari Endang Jayati]]>;
<![CDATA[Ervina Sukoriyanti]]>;
<![CDATA[Budiani Destyningtias]]>
<![CDATA[ SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 12, No 2 (2015): Juni 2015 ]]>
Publisher : <![CDATA[Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau ]]>
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DOI: 10.24014/sitekin.v12i2.957
<![CDATA[ Kita semua tahu bahwa pesatnya perkembangan telekomunikasi di Indonesia khususnya telekomunikasi seluler membuat beberapa perubahan di negara tersebut. Sisi positifnya negara tersebut menjadi maju dan modern, sedangkan sisi negatifnya negara tersebut mengalami perubahan tata letak ruang atau sistem tata kota yang tidak rapi. Semakin banyaknya tower seluler menjadi penyumbang utama terciptanya hutan menara di suatu negara. Hutan menara yang tumbuh pesat tentu saja membawa dampak negatif bagi wilayah tersebut, salah satunya adalah terganggunya sistem radio pada penerbangan di wilayah tersebut. Selain itu, sarana dan prasarana yang harus disediakan oleh provider atau operator seluler menjadi tidak efektif dan efisien. Untuk menyikapi hal tersebut, dari sisi pemerintahan mengeluarkan beberapa peraturan terkait pembangunan tower baru, kemudian dari sisi perusahaan atau vendor terkait sarana dan prasarana tersebut, dalam hal ini adalah perusahaan penghasil perangkat yang dibutuhkan oleh operator atau provider telekomunikasi seluler, berlomba-lomba menciptakan suatu perangkat yang lebih canggih, efisien, efektif yang tentu saja lebih ramah lingkungan dengan harga yang terjangkau. Salah satu contohnya adalah perangkat antenna multi band, yaitu perangkat antenna yang bisa melayani beberapa range frequency yang berbeda atau range frequency tertentu. Dengan adanya perangkat antenna tersebut akan memungkinkan terjadinya sistem antenna sharing dalam satu operator ataupun antar operator.]]>
<![CDATA[IDENTIFIKASI KANKER PAYUDARA DENGAN THERMAL ]]>
<![CDATA[Titik Nurhayati]]>;
<![CDATA[Dinar Mutiara K.N]]>;
<![CDATA[Budiani Destyningtias]]>
<![CDATA[ Prosiding SNST Fakultas Teknik Vol 1, No 1 (2010): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 1 2010 ]]>
Publisher : <![CDATA[Prosiding SNST Fakultas Teknik ]]>
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<![CDATA[Cancer is one of the causes of the main death in South-East Asian countries. Cancer is become 6th rank cause of the death in Indonesia. Around 800,000 Indonesia peoples indicated cancer per year.This research seeks for an alternatif method and tools for indicating breast cancer.The method of this research is using Fluke Thermal Ti20and thermal imager.Keyword : breast cancer, cropping, histogram.]]>
<![CDATA[Perbandingan Kinerja Generalized Frequency Division Multiplexing Menggunakan Modulasi QAM dan Offset QAM ]]>
<![CDATA[Ari Endang Jayati]]>;
<![CDATA[Budiani Destyningtias]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 12 No 1: Februari 2023 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v12i1.2548
<![CDATA[Generalized frequency division multiplexing (GFDM) is a future nonorthogonal multicarrier system. GFDM is a block-shaped data transmission technique in which each subcarrier is formed from nonrectangular shaped pulses. The application of quadrature amplitude modulation (QAM) mapping for GFDM is excellent because of the increased spectral efficiency. QAM also has limitations, namely increasing complexity when implemented. Apart from that, the inter carrier interference (ICI) persists and greatly influences the system. The technique for mitigating this weakness is by using offset QAM (OQAM) mapping. The advantages of GFDM/OQAM over GFDM/QAM are that the quadrature and in-phase components in OQAM modulation do not experience shifts in the same time slot, low out of band (OOB), high data rate and is ICI free. This study compares two scenarios namely the GFDM/OQAM and the GFDM/QAM systems. It analyzes the performance of the bit error rate (BER) if additive white gaussian noise (AWGN) and Rayleigh channels are passed. The simulation results show that GFDM/OQAM has better performance results. The simulation results showed that in order to obtain BER 10-2, there should be a decrease in the value of Eb/N0 (ratio of energy per bit to noise power) by 8 dB in QAM to OQAM when they were passed AWGN channels. Meanwhile, when passed the Rayleigh Fading channel, there was a decrease in the Eb/N0 value by 9 dB in the QAM to OQAM to get a BER value of 10-2. This study has also succeeded in investigating the performance of the two systems for parameters of the constellation diagram and signal spectrum. Moreover, it has succeeded in obtaining a roll off factor reference value that can be used in the application of the GFDM/OQAM system with the best performance result of 0.3. The roll off factor value greatly affects the performance of the GFDM system.]]>
<![CDATA[Pelatihan Dasar Teknik Tenaga Listrik Bagi SMA Kesatrian 2 Semarang ]]>
<![CDATA[Nurhayati, Titik]]>;
<![CDATA[Destyningtias, Budiani]]>;
<![CDATA[ISYA ARYAN, ISYA ARYAN SULISTYO]]>;
<![CDATA[Nurul, Yusuf]]>
<![CDATA[ Gotong Royong Vol. 2 No. 3 (2025) ]]>
Publisher : <![CDATA[CV. Akira Java Bulu ]]>
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DOI: 10.63935/gr.v2i3.211
<![CDATA[The distribution system and method of installing electrical installations in Indonesia must follow the rules set by PUIL (General Regulations on Electrical Installations) which was published in 1977, then revised in 1987 and last in 2011. PUIL 2011 is the main technical reference for installing low voltage electrical installations. The purpose of this community service is to provide knowledge to students about the importance of electrical lighting installations in accordance with PUIL regulations to avoid the danger of fire or electric shock. Another goal is to provide knowledge about work safety in installing electrical installations because of the frequent occurrence of work accidents during installation. The problems faced by the community are the lack of knowledge of the community / high school students about (1) Lack of special skills for Kesatrian High School graduates in analyzing electrical problems, especially in electrical lighting installations in accordance with PUIL standards (2) Lack of detailed explanation through a theoretical approach regarding the basic problems of electrical lighting installations for graduates of SMA Kesatrian 2. The training provided is in the form of providing material explanations, regarding the basic legal understanding of electrical installations, Law No. 30 of 2009 concerning Electricity, Government Regulation (PP) No. 25 of 2023 concerning Electrical Safety Replacing PP No. 10 of 1989 and updating safety standards,” In addition, there is ESDM Ministerial Regulation No. 12 of 2021 concerning Electrical Power Utilization Installations SNI 04-0225-2000 concerning Procedures for planning electrical installations in Buildings. The expected results are that students can read single diagram drawings and wiring diagrams, are able to apply them in practice in the field and indirectly develop a sense of independence. The approach methods offered to solve the partner's problem are (1) providing training to students of Kesatrian 2 Semarang High School about the electrical power installation process, (2) conducting simulations about how to install electrical power.]]>
<![CDATA[Pengenalan Dan Pelatihan Dasar Robotika Bagi Siswa/Siswi SMK PGRI 01 Semarang ]]>
<![CDATA[ISYA ARYAN]]>;
<![CDATA[Budiani Destyningtias]]>;
<![CDATA[Titik Nurhayati]]>
<![CDATA[ Gotong Royong Vol. 2 No. 1 (2025) ]]>
Publisher : <![CDATA[CV. Akira Java Bulu ]]>
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DOI: 10.63935/gr.v2i1.83
<![CDATA[The introduction and basic robotics training for vocational high school (SMK) students aims to provide a fundamental understanding of robotics concepts that can be applied in industry and technology. This training combines theoretical knowledge and hands-on practice to develop skills in designing, assembling, and programming simple robots. The curriculum includes an introduction to robot components, control systems, and the programming languages used to control robot movements. Using appropriate tools and devices, students are taught how to assemble robots using robotics kits while understanding basic concepts such as sensors, actuators, and logic programming. By the end of the training, students are expected to have a foundational knowledge of robotics that can be further explored for advanced technology studies and enhance their competitiveness in the industry. This robotics introduction also aims to foster student interest and motivation in the fields of technology and engineering, as well as open career opportunities in the rapidly growing technology sector.]]>
<![CDATA[RANCANG BANGUN PAKAN IKAN OTOMATIS TENAGA SURYA BERBASIS PROGRAMMABLE LOGIC CONTROLLER ]]>
<![CDATA[Derman Derman]]>;
<![CDATA[Budiani Destyningtias]]>;
<![CDATA[Arif Suprasetyo]]>
<![CDATA[ Jurnal Pengembangan Rekayasa dan Teknologi Vol. 2 No. 2 (2018): November (2018) ]]>
Publisher : <![CDATA[Universitas Semarang ]]>
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DOI: 10.26623/jprt.v14i2.1228
<![CDATA[Pemberian pakan merupakan salah satu hal penting untuk usaha budidaya ikan. Saat ini pemberian pakan umumnya masih tergantung pada sumber daya manusia yang bersifat manual. Oleh karena itu dirancang alat untuk memberi pakan ikan yang dapat bekerja secara otomatis berdasarkan waktu atau jadwal pemberian pakan dan takaran pakan. Pakan ikan otomatis ini menggunakan PLC (Programmable Logic Controller) yang merupakan pengontrol utama, Inverter sebagai pengubah tegangan DC ke AC dari panel surya ke charge controller, Panel surya sebagai pembangkit listrik yang diperoleh dari sinar matahari yang dilengkapi dengan charge controller dan aki sebagai penyimpan dan penyalur tegangan. Hasil Penelitian menunjukkan bahwa alat penjadwalan pakan ikan otomatis tenaga surya menggunakan PLC telah berfungsi dengan baik. Alat tersebut bekerja berdasarkan sistem penjadwalan yang telah di setting melalui software cx-one programmer ke PLC. Alat akan bekerja sesuai jadwal yang telah diatur yaitu jam 7 pagi dan jam 4 sore serta kapasitas pakan yang keluar sudah terencana yaitu 1 Menit 30 detik. Pada saat pengujian nilai rata-rata tegangan solar cell tanpa beban adalah 38,69 Vdc, sedangkan pada posisi berbeban didapatkan 36,92 Vdc, nilai rata-rata arus solar cell tanpa beban adalah 1,80 A, sedangkan pada posisi berbeban didapatkan 1,56 A. Nilai rata-rata daya solar cell tanpa beban adalah 70,02 W, sedangkan pada posisi berbeban didapatkan 48,74 W dan juga pada inverter menghasilkan daya keluaran rata-rata adalah 201,43 W]]>
<![CDATA[Analisa Citra Medis Pada Pasien Stroke dengan Metoda Peregangan Kontras Berbasis ImageJ ]]>
<![CDATA[Budiani Destyningtias]]>;
<![CDATA[Andi Kurniawan N]]>;
<![CDATA[Sri Heranurweni]]>
<![CDATA[ Elektrika Vol. 10 No. 1 (2018): April 2018 ]]>
Publisher : <![CDATA[Universitas Semarang ]]>
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DOI: 10.26623/elektrika.v10i1.1130
<![CDATA[Penelitian ini bertujuan mengembangankan teknologi pengolahan citra medis terutama citra medis CT Scan penderita stroke. Dokter dalam menentukan tingkat keparahan pasien stroke biasanya menggunakan citra medis CT scan dan mengalami kesulitan dalam menginterpretasikan luasan cakupan perdarahan.Solusi yang digunakan dengan peregangan kontras yang akan membedakan jaringan sel, tulang tengkorak dan jenis perdarahan. Penelitian ini menggunakan peregangan kontras dari hasil citra CT Scan yang dihasilkan dengan terlebih dahulu mengubah Citra DICOM menjadi citra JPEG dengan menggunakan bantuan program ImageJ. Hasil penelitian menunjukkan bahwa metode histogram ekualisasi dan analisis tekstur statistik dapat digunakan untuk membedakan yang normal MRI dan abnormal MRI yang terdeteksi stroke. Kata Kata Kunci : Stroke, MRI , Dicom, JPEG, ImageJ, Peregangan Kontras]]>
<![CDATA[KLASIFIKASI POLA IMAGE PADA PASIEN TUMOR OTAK BERBASIS JARINGAN SYARAF TIRUAN ( STUDI KASUS PENANGANAN KURATIF PASIEN TUMOR OTAK ) ]]>
<![CDATA[Sri Heranurweni]]>;
<![CDATA[Budiani Destyningtias]]>;
<![CDATA[Andi Kurniawan Nugroho]]>
<![CDATA[ Elektrika Vol. 10 No. 2 (2018): Oktober 2018 ]]>
Publisher : <![CDATA[Universitas Semarang ]]>
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DOI: 10.26623/elektrika.v10i2.1169
<![CDATA[ Nowadays medical science has developed rapidly, diagnostic and treatment techniques have provided life expectancy for patients. One way of examining brain tumor sufferers is radiological examination that needs to be done, including MRI with contrast. MRI brain images are useful for seeing tumors in the initial steps of diagnosis and are very good for classification, erosions / destruction lesions of the skull. Smoothing image processing, segmentation with otsu method and feature extraction are carried out to facilitate the training and testing process. This study, will apply texture analysis with the parameters contrast, correlation, energy, homogenity to distinguish the texture of brain tumor images and normal so as to produce a standard gold value based on existing texture characteristics. Training and testing of texture features using backpropagation method of artificial neural networks with variations in learning rate values so that it is expected to obtain a classification of the image conditions of patients with brain tumors. The data used are 29 brain images that produce classification accuracy of 96.55%.Keywords : MRI images, brain tumors, textur, backprogation ]]>
<![CDATA[PENGATURAN SUHU UNTUK MENGATASI BAYI TERBAKAR BERBASIS ARDUINO DAN LABVIEW PADA INFANT INCUBATOR ]]>
<![CDATA[Dicky Rivaldo Ramdani]]>;
<![CDATA[Andi Kurniawan Nugroho]]>;
<![CDATA[Budiani Destyningtias]]>
<![CDATA[ Elektrika Vol. 11 No. 1 (2019): April 2019 ]]>
Publisher : <![CDATA[Universitas Semarang ]]>
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DOI: 10.26623/elektrika.v11i1.1540
<![CDATA[An incubator is a place designed to maintain a certain temperature condition. Incubators are often found in hospitals and farms. In hospitals, the Incubator functions to warm newborns, or premature babies. On farms, this incubator is usually used for egg hatchers and as a place for newly hatched chicks. Incubators are usually in the form of a room or box (box) of a certain size. In this research will be designed a prototype to modify the infant incubator by adding sensors to regulate the temperature and control using a Arduino microcontroller. This incubator has a measurement system and temperature regulation using LM35 sensors, heaters and fans as actuators that can cool the incubator room with Arduino as controlling. Temperature setting will be monitored by LABVIEW. In the Arduino system a program can be set up that can adjust the temperature . The temperature required by the premature baby, so that it can maintain the stability of the temperature. If the temperature in the incubator is smaller than the temperature setting, the heater will turn on and the fan speed will decrease to increase the temperature according to the settings entered. If the temperature in the incubator is greater than the temperature setting entered, the heater will turn off. The results showed that the linear regression value between the temperature values with the ADC value of y = 0.4883x with a determination coefficient of 1, while the linear regression value between the temperature with a voltage value of y = 99.481x with a coefficient of 0.9984.Keywords: Infant Incubator, temperature sensor, LM35.]]>
<![CDATA[PELATIHAN MIKROKONTROLLER ARM Cortex-M0 NUVUTON BAGI SISWA SMPN 23 KOTA SEMARANG ]]>
<![CDATA[Sri Heranurweni]]>;
<![CDATA[Budiani Destyningtias]]>
<![CDATA[ TEMATIK Vol. 1 No. 2 (2021): Juli ]]>
Publisher : <![CDATA[Universitas Semarang ]]>
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DOI: 10.26623/tmt.v1i2.3519
<![CDATA[Mikrokontroler AVR merupakan salah satu jenis arsitektur mikrokontroler yang menjadi andalan Atmel. Arsitektur ini dirancang memiliki berbagai kelebihan dan merupakan penyempurnaan dari arsitektur mikrokontroler- mikrokontroler yang sudah ada. Semakin berkembangnya teknologi terutama di bidang kendali dan kurangnya pemahaman siswa SMPN 23 Semarang dalam bidang mikrokontroler menjadikan alasan untuk diadakannya pelatihan Mikrokontroler ARM Cortex MO Nuvuton di kota Semarang. Pelatihan ini sudah terlaksana pada hari Selasa 5 Januari 2021 sevara daring dengan menggunakan oom meeting diikuti oleh peserta 4 siswa.]]>
