The development of telecommunications technology continues to increase, especially in the use of cellular communication networks. Users of cellular networks today need high-speed communication to be able to enjoy the facilities offered such as streaming video, web browsing, e-mail and others. With the current increase in user capacity, it causes a lot of interference. Therefore, the use of modulation techniques needs to be considered. To find out the proper use of modulation, in accordance with the conditions of the region and the network used, this study examines the performance of variations in modulation levels, namely QPSK, 16QAM, 64QAM and 256QAM. The parameters measured in this study include RSRP, CINR, BER, user connected and throughput. Based on the coverage by RSRP simulation results, it was found that the RSRP did not change because the power signal will always adjust to any use of the modulation level. For coverage by CINR obtained to obtain a higher rate value, a higher CINR value is needed and for coverage by BER parameters, BER does not affect the bit per symbol carried by each modulation, only affects the different types of modulation. Meanwhile, in the capacity by Throughput parameter, QPSK modulation produces the lowest average throughput value of 14.01 Mbps followed by 16QAM 21.58 Mbps 64QAM 28.6 Mbps and 256QAM 33.87 Mbps. In addition, for the capacity by user connected parameters all connected users on all modulation used will produce 100% for capacity by user connected.

<div class="WordSection1"><p align="center"><em>According to energy observers from the Institute for Essential Services Reform (IESR) the number of electricity consumers in Indonesia has increased by an average of 6-7% annually followed by an increase in the area of its services.</em><em> An increasingly broad network is directly proportional to the potential for interference with the transmission and distribution system. The 150 KV Rembang substations is part of the Java-Bali Interconnection electrical system in northern Central Java that supplies electricity to the Rembang and surrounding areas. Rembang 150 KV substation on May 24, 2019, RBG 01 feeder experienced a disturbance behind the RB1-32 recloser and it was recorded that in 2019 PMT it had been tripped 4 times. Besides, there has been a change in equipment in the form of transformer II. These problems indicate the potential for interference that is not anticipated by the protection system, namely Over Current Relay and recloser.</em><em>  This study evaluates the setting of an outgoing 20 KV OCR protections and recloser on transformer II RBG 01 feeder Rembang 150 KV substation. The scenarios used are calculations with large variations of short-circuit current based on% distance, as well as the calculation of OCR and recloser settings with IEC 60255 standards. Setting currents in the protection equipment is regulated based on current conductivity (KHA) and load current on the recloser. The coordination of the protection settings resulting from this resetting will be compared to the conditions on the ground.  </em><em>Existing (field) OCR outgoing feeder RBG 01 condition TMS OCR value = 0.228 seconds, Iset = 480 A, and t op = 0.3 seconds. The existing OCR recloser condition TMS OCR value = 0.120 seconds and Iset = 400 A. The results of OCR coordinating outgoing feeder RBG 01 obtained TMS OCR value = 0.135 seconds, Iset = 585 A, and t operation = 0.3 seconds. OCR recloser resetting conditions obtained TMS OCR value = 0.10 seconds, Iset = 240 A and t operation = 0.198 seconds. The resetting conditions have met the IEC 60255 standard because recloser working time is smaller than outgoing work time.</em></p></div>

<p><em>Solar power inverter is one of the main components in the PLTS system in order to produce the power or energy needed by the load. Solar power inverter is used to convert from DC energy (Direct Current) to AC (Alternating Current) to load. In this research a simulation of a solar power inverter system on a photovoltaic system will be designed. Simulation is done using SIMULINK-MATLAB software. Solar power inverter is designed using a boost converter as a controller and a Full-Bridge Inverter. Boost Converter is designed from 12VDC - 17 VDC to 300 VDC. Full Bridge Inverter produces AC voltage of 240 VAC with modulation index 0.8 and frequency 60 Hz. Total Harmonic Distortion is 46.07%. Power of Photovoltaic Solar panels generated at 3500 Watts at 1000 Watt / m2 irradiation conditions and temperature temperatures of 25 degrees Celsius.</em></p>

The purpose of this research is to design and realize a pipe leak detection system that can be monitored with an Android application. Water flow sensor is used to determine the flow of water, with water flow rate analysis it is possible to know the leakage area, pipe leakage rate, and the number of leaks in pipe area if there is a water flow rate decrease. The data is processed with an NodeMCU microcontroller based on Internet of Things (IoT). The accuracy of all water flow sensors after calibration is 97,53%. When testing with the determination of each leaked area the results are appropriate. The reading of each water flow rate decrease that occurs has an accuracy of determiningthe leakage rate of 90,2% while the suitability of reading the number of leakage areas depends on the detection of the leakage area and the classification of the leakage rate. The greater the water flow reads on the sensors, the precission level to determine the level of water pipe leakage is getting better, and vice versa, this is due to sensors having variable variations in flow rate readings.

<p>The development of increasingly sophisticated technology follows the needs of the community, one of them in the telecommunications world is FTTH (Fiber to the Home) which is an optical signal delivery format from the center of the provider to the homes of costumers by using optical fiber as a medium of delivery. Delivery by using this FTTH technology can save costs and provide better service to customers. The study was conducted by interview and observation methods with network objects and FTTH components belonging to Telkom Semarang and through the literature method by searching some literature. FTTH configuration starts with the ONT to rosette connected using a patchcord cable then from rosette to OTP using an indoor cable then from OTP to ODP outside the home is connected using a dropcore cable. ODP itself is the result of the distribution of distribution cables/ aerial cables leading to ODC. ODC to STO/FTM/ODF using feeder cable. FTTH network is very effective to use, because it can use triple play services (telephone, internet and IPTV) with just 1ONT/ modem at the customer s side.</p>

<p>The use of electricity with large capacity sometimes faces various kinds of problems. These problems include network losses and voltage drops that occur in the channel. Improvement of electric power factor at PT. Karya Toha Putra is expected to improve the quality of electric power. This improvement is also expected to reduce the cost of electricity bills at PT. Karya Toha Putra. To be able to implement improvements in the quality of the electric power, it is necessary to calculate the reactive power compensated. In this case the power factor to be achieved is 0.95. After doing these calculations, the determination of the capacitor value will be used. By doing these stages, it is expected that the installation of capacitor banks can improve the quality of electric power. Bank capacitors are collections of capacitors used to provide reactive power compensation to improve the electrical power factor. From the results of the study showed that the amount of compensation needed to improve the power factor at PT. Karya Toha Putra is 50 kVAR, divided into 5 steps with one step, a capacitor of 10 kVAR.</p>

<p class="Abstract">Hypo-hyperthermia tool is a devive that can stabilize body temperature which decreases or increases temperature dramatically. The design of hypo-hyperthermia devices has been made using Arduino Uno. Functional tests have also been carried out on the hypo-hyperthermia tool to determine the level of success and eligibility. This tool works by utilizing the flow of water to provide the temperature needed by the patient in order to obtain a normal temperature, namely by increasing the temperature of the blanket when the patient has hypothermia and lowering the temperature of the blanket when the patient has hyperthermia. The design of this hypo-hyperthermia tool uses Arduino uno as a processor and DS18B20 sensor for temperature readings. Heaters are also used as water heaters, condensers as water coolers, and water pumps to drive the water cycle from the appliance to the blanket and back to the appliance. The temperature and mode settings will be displayed on the LCD screen. Function test results obtained by comparing the value of the temperature reading in skin mode with a digital thermometer that is obtained an error value of 0.3%. This temperature difference is affected by the room temperature and body temperature of the patient which can change at any time. It was also obtained by comparison of the temperature reading values in blanket mode with a digital thermometer that is obtained the largest error value of 6% at a setting value of 25 °C and the smallest error value of 0.3% at a setting value of 30 °C. This temperature difference is influenced by the temperature of the room at the time of measurement on the blanket is also influenced by the thickness of the hose installed on the blanket, so that the cold temperature in the water is not absorbed properly.</p>

Ikan kembung   (Rastrelliger neglectus) merupakan jenis ikan ekonomis penting yang banyak ditangkap maupun dikonsumsi di Indonesia. Wortel adalah tumbuhan jenis sayuran umbi yang biasanya berwarna kuning kemerahan dengan tekstur serupa kayu. Bakso merupakan bahan pangan sumber protein hewani alternatif yang relatif murah. Daya konsumsi masyarakat terutama anak-anak yang rendah terhadap sayuran wortel maka dari itu bakso ikan kembung ditambah sayuran wortel agar tinggi vitamin dan meningkatkan daya konsumsi terhadap wortel. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan subtitusi wortel dan ikan kembung pada bakso ikan kembung terhadap sifat fisikokimia dan organoleptik bakso ikan kembung yang dihasilkan. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) dengan satu faktor yaitu substitusi wortel dan ikan kembung dengan 5 perlakuan dan 4 kali ulangan. Dengan pengukuran variabel yaitu kadar lemak, kadar air, kadar protein, vitamin A, tekstur (kekenyalan). Uji hedonik rasa dan warna. Subtitusi ikan kembung dan wortel berpengaruh nyata (p<0,05) terhadap sifat kimia (kadar air, protein, kadar lemak, vitamin A), organoleptik (rasa, dan warna) dan tidak beda nyata terhadap sifat fisik yaitu tekstur pada bakso ikan kembung dengan subtitusi wortel.  

Daging ayam kampung mempunyai rasa yang lebih enak dengan kandungan lemak dan kolestrol yang rendah. Daging sayat merupakan salah satu cara efektif dalam proses pengawetan daging dengan cara curing dan pengeringan, penambahan bumbu rempah-rempah untuk memberi cita rasa dan aroma pada daging sayat. Jahe mengandung enzim protease yang mampu mengempukkan daging. Tujuan penelitian ini adalah untuk mengetahui pengaruh konsentrasi jahe merah terhadap karakteristik fisikokimia dan organoleptik daging sayat ayam kampung, mengetahui perlakuan terbaik yang dihasilkan. Penelitian ini dilaksanakan pada Bulan Juni-Juli 2019, di Laboratorium Rekayasa Pangan, Laboratorium Kimia, dan Laboratorium Uji Inderawi Fakultas Teknologi Pertanian Universitas Semarang. Metode penelitian adalah eksperimen dengan menggunakan Rancangan Percobaan Rancangan Acak Lengkap (RAL) dengan 1 faktor yaitu 5 perlakuan dan 4 kali ulangan variasi konsentrasi jahe merah, Penyayatan dengan cara menyayat tipis daging ayam kampung. Adapun perlakuan yang digunakan P0= 0% (tidak ada penambahan jahe merah atau 100% daging ayam kampung), P1= 2,5% (penambahan jahe merah sebanyak 2,5 g), P2= 5% (penambahan jahe merah sebanyak 5g), P3= 7,5% (penambahan jahe merah sebanyak 7,5g), P4= 10% (penambahan jahe merah sebanyak 10g), sedangkan parameter yang diamati adalah sifat fisik (tekstur), sifat kimia (kadar air, kadar protein, dan kadar lemak), dan sifat organoleptik ( warna). Apabila ada pengaruh yang nyata, maka diuji lanjut dengan menggunakan Tuckey taraf 5%. Konsentrasi jahe merah berpengaruh nyata (P<0,05) terhadap kadar air, kadar protein, tekstur (kekerasan) dan organoleptik (skor warna). Sedangkan terhadap kadar lemak tidak berbeda nyata. Panelis memilih P4 dengan skor warna 4,50 (coklat coklat tua), dengan kadar air 6,38%, kadar lemak 0,20%, kadar protein 19,30% dan tekstur kekerasan 102,93 gf.

Penelitian ini bertujuan untuk mengetahui yield, fenolik, flavonoid, tanin dan aktivitas antioksidan pada ekstrak kulit melinjo merah dengan berbagai lama ekstraksi berbantu gelombang ultrasonik. Hasil penelitian ini diharapkan dapat memberikan informasi ilmiah kepada masyarakat tentang pemanfaatan ekstraksi kulit melinjo merah berbantu gelombang ultrasonik. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan 6 perlakuan dan diulang sebanyak 3 kali, yaitu perlakuan lama ekstraksi 10 menit (P1), perlakuan lama ekstraksi 20 menit (P2), perlakuan lama ekstraksi 30 menit (P3), perlakuan lama ekstraksi 40 menit (P4), perlakuan lama ekstraksi 50 menit (P5), dan perlakuan lama ekstraksi 60 menit (P6). Data yang diperoleh dianalisis dengan menggunakan ANOVA, dan apabila perbedaan akibat perlakuan dilanjutkan dengan uji wilayah ganda Duncan (DMRT) pada taraf 0,05%. Hasil penelitian menunjukkan ekstraksi kulit melinjo merah berbantu gelombang ultrasonik berpengaruh terhadap yield, fenolik, flavonoid, tanin dan aktivitas antioksidan. Untuk mendapatkan yield, fenolik, flavonoid, tanin dan aktivitas antioksidan terbaik adalah pada waktu 30 menit (P3) yang mneghasilkan yield sebesar 17,86%, fenolik 2,74 mg GAE/g, flavonoid 2,30 mg QE/g, tanin 2,92 mg TAE/g, dan aktivitas antioksidan sebesar 74,33%.