bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perancangan Sistem Radio Pengendali Robot Terbang Nirawak
Authors: Samijayani Octarina Nur , Rahmatia Suci , Apridinata Tio 
Published: November 2019

<p><em>Abstrak –<strong> </strong></em><strong>Permasalahan investigasi, evakuasi bencana ataupun juga aplikasi pemantauan berkala pada daerah yang sangat sulit dijangkau memerlukan suatu teknologi yang dapat menjangkau daerah tersebut. Salah satu alternatif adalah menggunakan robot tanpa awak, yakni dapat berupa pesawat dalam ukuran besar ataupun robot dalam ukuran kecil. Robot terbang tanpa awak merupakan salah satu teknologi yang dapat mengintai atau mendapatkan informasi yang diperlukan di daerah yang sulit dijangkau. Robot terbang saat ini memiliki banyak kegunaan, diantaranya untuk meliput aktifitas lalu lintas, aerial photography menentukan kontur daratan, surveillance perkebunan, sampai pemupukan. Dengan mengirimkan robot terbang, manusia tidak perlu datang langsung ke tempat yang ingin dituju. Salah satu komponen penting pada robot terbang adalah sistem pengendali jarak jauh. Sistem pengendali yang dirancang pada penelitian ini memanfaatkan system komunikasi radio untuk mengendalikan robot terbang. Perancangan system dimulai dengan perancangan perangkat robot terbang kemudian perancangan system radio pengendali. Hasil uji coba sistem radio pengendali robot terbang ialah jarak terbang mencapai 200 meter, sistem komunikasi telemetri dan GPS telah berhasil digunakan untuk mengirimkan informasi ketinggian, arah, dan posisi, status batterai dari robot.</strong></p><p><strong> </strong></p><p><strong><em>Kata Kunci</em></strong><strong> - </strong><em>Robot Terbang Nirawak, Radio Pengendali, Telemetri</em></p><p><strong> </strong></p><p><em>Abstract<strong> – </strong></em><strong>The investigation and evacuation necessity after certain disaster also for monitoring system in remote area especially in danger area needs such technology that can reach that location. One of alternative is using the unmanned robot, in form of airplane or specific unmanned robot. Unmanned flying robot or Aerial Robotics can reach the remote area in order to find and record the important information. Recently, flying robot is widely used in some application area, for example for traffic monitoring, aerial photography, plantation surveillance and fertilization. One of the important components in flying robot is the controller function. In this research, the controller function is designed and sent using radio communication. The flying robot design is involving the hardware component and the radio controller. Experimental results shows that flying robot has flight range of up to 200 meters, also telemetry and GPS communication systems have been successfully used to transmit altitude information , direction, position, and the status of the robot batteries.</strong></p><p><em> </em></p><p><strong><em>Keywords </em></strong>– <em>Robot Terbang Nirawak, Radio Control, Telemetry</em></p>
Temperature Control System for Transformer Three-Phase 50 Hz 2500 kVA
Authors: Rahmatia Suci , Makhudzia Marsah Zaysi 
Published: November 2019

<p><em>Abstrak <strong>- </strong></em><strong>Transformator adalah peralatan listrik yang sangat vital dalam proses pembangkitan maupun transmisi energi listrik karena transformator dapat menaikkan atau menurunkan tegangan. Pada proses menaikkan dan menurunkan tegangan biasanya sering timbul panas akibat rugi – rugi tembaga pada inti besi dan kumparannya sehingga pada kondisi overload akan menimbulkan pemanasan yang berlebih dan dapat mempengaruhi kinerja transformator. Oleh karena itu dibuat sistem kontrol temperatur pada transformer yang dapat mengontrol temperatur di dalam transformator saat bekerja pada kondisi overload, sehigga transformatornya tidak terbakar. Dial thermometer digunakan sebagai alat yang mengontrol temperatur transformator pada sistem kontrol temperatur. Agar mendapatkan sistem kontrol yang optimal, maka setting temperatur pada dial thermometer di sesuaikan dengan temperatur maksimal tranformator dapat bekerja. Sehingga pada saat temperatur tertentu dial thermometer dapat memberikan sinyal untuk membunyikan alarm dan mengaktifkan kontrol kipas sehingga kipas dapat bekerja menurunkan temperatur transformator.<em></em></strong></p><p><strong><em> </em></strong></p><p><strong><em>Kata kunci - </em></strong><em>transformator, rugi – rugi tembaga, temperatur, sistem kontrol, dial thermometer<strong>.</strong></em></p><p><strong><em> </em></strong></p><p><em>Abstract <strong>- </strong></em><strong>A transformer is an electrical device that is vital in the generation and transmission of electrical energy because the transformer can raise (stepping up) or lower (stepping down) the voltage. In the process of raising and lowering the voltage is usually often caused heat loss of copper in iron core and coil so that the overload condition will cause excessive warming and can affect the performance of the transformer. Therefore, a temperature control system on the transformer can control the temperature inside the transformer while working under overload conditions, so the transformer is not burned. Dial thermometer is used as a device that controls the temperature of the transformer in the temperature control system. In order to obtain an optimal control system, the temperature setting on the dial thermometer adjusted to the maximum transformer temperature can work. So that when a certain temperature dial thermometer can provide a signal to sound the alarm and activate the fan control so that the fan can work down the transformer temperature.</strong></p><p><strong> </strong></p><p><strong><em>Keywords - </em></strong><em>transformator, loss of copper, themperature, control system, dial thermometer<strong></strong></em></p>
Preferensi Dosen Pada Proses Penjadwalan Kuliah Menggunakan Algoritma Genetik Studi Kasus: Universitas Al Azhar Indonesia
Authors: Haryadi Dody , Jamal Ade 
Published: November 2019

<p><em>Abstrak</em> - <strong>Proses penjadwalan kuliah di suatu Universitas merupakan suatu proses yang memiliki peran penting. Dengan adanya sistem yang dapat melakukan penjadwalan dengan mempersingkat proses dan tidak adanya jadwal yang bentrok, kegiatan perkuliahan akan berjalan secara tertib. Penelitian ini akan membahas mengenai proses penjadwalan kuliah di Universitas Al Azhar Indonesia (UAI) dengan menggunakan algoritma genetika. Analisa kebutuhan sistem dilakukan sesuai dengan proses bisnis penjadwalan kuliah di UAI. Pada algoritma genetika ini terdapat <em>hard constrain</em> dan <em>soft constrain</em> yang bisa ditentukan sesuai dengan kebutuhan, seperti satu jadwal kuliah tidak boleh ada yang beririsan dengan jadwal kuliah yang lainnya. Sistem dapat merekam jadwal yang dapat dipenuhi dan juga tidak dapat dipenuhi dosen, sehingga ketika dalam proses penjadwalan, sistem dapat mencari waktu pengganti lainnya. Terdapat perubahan proses bisnis penjadwalan kuliah di UAI, dan juga berdampak pada pengembangan sistem informasi penjadwalan kuliah. Terdapat input dan output file json yang digunakan untuk komunikasi antara sistem informasi penjadwalan kuliah yang ada dengan sistem penjadwalan algoritma genetik. </strong></p><p><strong> </strong></p><p><strong><em>Kata Kunci</em></strong><strong> – </strong><em>Penjadwalan Kuliah, Algoritma Evolusi, Presensi Waktu Dosen</em></p><p> </p><p><strong>Abstract - The process of scheduling a lecture at a university is a process that has an important role. With a system that can perform scheduling by shortening the process and the absence of conflicting schedules, lecture activities will run in an orderly manner. This research will discuss about the process of scheduling lecture at Al Azhar University of Indonesia (UAI) by using genetic algorithm. Analysis of system requirements is done in accordance with business process scheduling lectures at UAI. In this genetic algorithm there is a hard constrain and soft constrain that can be determined according to need, such as a lecture schedule should not be any that incline with other lecture schedules. The system can record schedules that can be met and also can’t be met lecturers, so that when in the process of scheduling, the system can find another replacement time. There is a change in the business process of lecture scheduling in UAI, and also has an impact on the development of lecture scheduling information system. There is an input and output json file that is used for communication between existing lecture scheduling information systems with genetic algorithm scheduling system.</strong></p><p><strong> </strong></p><strong><em>Keywords</em> - </strong><em>Scheduling Lectures, Evolution Algorithm, Lecturer Time Presentation</em>
Prototipe Tempat Sampah Elektronik Bersuara Berbasis Mikrokontroler ATMega328P dan Decoder VS1011
Authors: Mujadin Anwar , Astharini Dwi 
Published: November 2019

<p><em>Abstrak </em><strong>– Perilaku membuang sampah sembarangan tidak pernah lepas dari pengaruh lingkungan sekitar. Saat ini, dalam menangggapi masalah buang sampah sembarangan sudah menjadi kebiasaan dimasyarakat yang biasa karena semua orang melakukannya.</strong><strong> </strong><strong>Merubah prilaku orang sangatlah tidak mudah perlu cara yang luar biasa.</strong><strong> Pada penelitian ini </strong><strong>telah dirancang bangun sebuah divais yang menyuguhkan beraneka ragam suara “aneh” yang menyebabkan si pembuang sampah selalu ingin melempar sampahnya pada divais ini.</strong><strong> </strong><strong>Prototipe menggunakan mikrokontroler ATMega328P dan decoder VS1011 sebagai pemutar suara dalam format MP3. Sistem elektronik menggunakan catu daya operasi baterai 12V, 5V dan 3.3V. Tulisan ini akan menjelaskan teknis optocoupler, power regulator dan karakteristik baterai.</strong><strong></strong></p><p><strong> </strong></p><p><strong><em>Kata Kunci</em></strong><em> – Tempat Sampah Elektronik, Teknis Optocoupler, Power Regulator dan Karakteristik Baterai</em></p><p><em> </em></p><p><strong><em>Abstract</em></strong><em> –</em> <strong>Behavior of littering is never out of the environment. Currently, in dealing with the problem of littering has become a habit in the ordinary community because everyone is doing it. Changing people’s behavior is not easy to need a great way. In this research has been designed to build a device that presents a variety of "weird" sound that causes the garbage disposal always wants to throw the garbage on this device. The prototype uses an ATMega328P microcontroller and VS1011 decoder as a sound player in MP3 format. Electronic systems use battery operation power supply 12V, 5V and 3.3V. This paper will explain the technical optocoupler, power regulator and battery characteristics.<em></em></strong></p><p><em> </em></p><p><strong><em>Keywords</em></strong><em> – Electronic Bin, Technical Optacoupler, Power Regulator, and Battery Characteristics</em></p>
Integrasi Database M-Learning (Mobile Learning) Menggunakan Content Manajemen System Moodle Untuk Pengelolaan Konten Akademik
Authors: Hendriadi Ade Andri , Wahidin Deden 
Published: November 2019

Abstrak
Pengembangkan aplikasi m-learning (mobile learning) yang terintegrasi dengan sebuah LMS (Learning Management System) Moodle dan untuk kemudian diimplementasikan sebagai fasilitas pendukung perkuliahan. Tahapan penelitian menggunakan metode pengembangan perangkat lunak SDLC (Software Development Life Cycle) dengan model USDP (Unified Software Development Process). Aplikasi m-learning yang dikembangkan pada penelitian ini bersifat client yang penggunaanya lebih ditujukan untuk mahasiswa (student). Aplikasi yang dikembangkan berjalan pada platform android. Penulisan kode program menggunakan bahasa pemrograman Java menggunakan IDE Eclipse. Pengembangan aplikasi juga menggunakan beberapa Development tools diantaranya Android SDK (Software Development Kit) dan ADT (Android Development Tools) sebagai alat bantu berupa emulator android. Proses integrasi antara LMS Moodle dengan aplikasi m-learning menggunakan bahasa pemrograman PHP (HyperText Preprocessor). Dari hasil implementasi yang dilakukan aplikasi m-learning dinilai baik untuk digunakan sebagai fasilitas pendukung belajar dalam perkuliahan

Keywords: Mobile learning, Moodle LMS, USDP
RANCANG BANGUN APLIKASI INFORMASI HARGA PRODUK PANGAN DAN SEMBAKO DI PASAR KAB. KARAWANG
Authors: Hananto April Lia , Priyatna Bayu 
Published: November 2019

Abstract
Pesatnya perkembangan teknologi informasi dan komunikasi atau yang dikenal dengan istilah Information and Communication Technology (ICT), saat ini semakin merambah ke-berbagai bidang kehidupan masyarakat tidak terkecuali bidang ketahanan pangan. Dari sisi yang berbeda dapat dilihat bahwa dengan adanya ICT bagaimana suatu proses transfer informasi dapat dilakukan kapan saja tanpa adanya batasan ruang dan waktu. Pasar merupakan kegiatan ekonomi masyarakat, hal ini didasari atau didorong faktor perkembangan ekonomi yang pada awalnya hanya bersumber pada problem untuk memenuhi kebutuhan hidup manusia (kebutuhan pokok). Produk yang dapat kita temukan di pasar salah satunya adalah produk pangan khususnya sembilan bahan pokok (SEMBAKO), sembako adalah kebutuhan pokok masyarakat kita, dan merupakan komoditi utama sebagai acuan kesejahteraan masyarakat. Tujuan penelitian ini adalah : a) Dapat mengumpulkan sumber data harga yang valid dari relawan pedagang dan stakeholder untuk diinformasikan kepada masyarakat. b)Dapat membangun aplikasi informasi harga produk pangan dan berbasis Mobile yang dapat berjalan di Sistem Operasi Android. Dalam menentukan harga digunakan suatu metode perhitungan, menurut Marcelina Rizka Falevy dkk (2012),[5] Simple Moving Average atau juga disingkat SMA adalah Moving Average paling sederhana dan tidak menggunakan pembobotannya dalam perhitungan terhadap pergerakan closing price. Meskipun sederhana, SMA cukup efektif dalam menentukan trend yang sedang terjadi di market. Cara pembacaannya pun sederhana.
Keywords: ICT, pasar, produk pangan dan sembako, Mobile, Android,Moving Average.
Toward Early-type Eclipsing Binaries as Extragalactic Milestones. I. Physical Parameters of OGLE-LMC-ECL-22270 and OGLE-LMC-ECL-06782
Authors: Taormina Mónica , Pietrzyński G. , Pilecki B. , Kudritzki R.-P. , Thompson I. B. , Graczyk D. , Gieren W. , Nardetto N. , Górski M. , Suchomska K. , Zgirski B. , Wielgórski P. , Karczmarek P. , Narloch W. 
Published: November 2019

Abstract
In this first paper of a series, we describe our project to calibrate the distance determination method based on early-type binary systems. The final objective is to measure accurate, geometrical distances to galaxies beyond the Magellanic Clouds with a precision of 2%. We start with the analysis of two early-type systems for which we have collected all the required spectroscopic and photometric data. Apart from catalog publications, these systems have not been studied yet, and this is the first time the modeling of light and radial velocity curves is performed for them. From the analysis we obtained precise physical parameters of the components, including the masses measured with a precision of 0.6%–1% and radii measured with a precision of 0.4%–3%. For one system we determined the

color and estimated the distance using the bolometric flux scaling method (DM = 18.47 ± 0.15 mag), which agrees well with our accurate determination of the distance to the Large Magellanic Cloud from late-type giants. For the same system we determined the surface brightness of individual stars using our model, and checked that it is consistent with a recent surface-brightness–color relation. We compared our results with evolution theory models of massive stars and found they agree in general; however, models with higher overshooting values give more consistent results. The age of the system was estimated to range from 11.7 to 13.8 Myr, depending on the model.
Fast Radio Bursts from Magnetars Born in Binary Neutron Star Mergers and Accretion Induced Collapse
Authors: Margalit Ben , Berger Edo , Metzger Brian D. 
Published: November 2019

Abstract
Recently born magnetars are promising candidates for the engines powering fast radio bursts (FRBs). The focus thus far has been placed on millisecond magnetars born in rare core-collapse explosions, motivated by the star-forming dwarf host galaxy of the repeating FRB 121102, which is remarkably similar to the hosts of superluminous supernovae and long gamma-ray bursts. However, long-lived magnetars may also be created in binary neutron star (BNS) mergers, in the small subset of cases with a sufficiently low total mass for the remnant to avoid collapse to a black hole, or in the accretion-induced collapse (AIC) of a white dwarf. A BNS or AIC FRB channel will be characterized by distinct host galaxy and spatial offset distributions which we show are consistent with the recently reported FRB 180924, localized by the Australian Square Kilometre Array Pathfinder to a massive quiescent host galaxy with an offset of about 1.4 effective radii. Using models calibrated to FRB 121102, we make predictions for the dispersion measure, rotation measure, and persistent radio emission from magnetar FRB sources born in BNS mergers or AIC, and show these are consistent with upper limits from FRB 180924. Depending on the rate of AIC, and the fraction of BNS mergers leaving long-lived stable magnetars, the birth rate of repeating FRB sources associated with older stellar populations could be comparable to that of the core-collapse channel. We also discuss potential differences in the repetition properties of these channels, as a result of differences in the characteristic masses and magnetic fields of the magnetars.
Tidal Destruction in a Low-mass Galaxy Environment: The Discovery of Tidal Tails around DDO 44*
Authors: Carlin Jeffrey L. , Garling Christopher T. , Peter Annika H. G. , Crnojević Denija , Forbes Duncan A. , Hargis Jonathan R. , Mutlu-Pakdil Burçin , Pucha Ragadeepika , Romanowsky Aaron J. , Sand David J. , Spekkens Kristine , Strader Jay , Willman Beth 
Published: November 2019

Abstract
We report the discovery of a ≳1° (∼50 kpc) long stellar tidal stream emanating from the dwarf galaxy DDO 44, a likely satellite of Local Volume galaxy NGC 2403 located ∼70 kpc in projection from its companion. NGC 2403 is a roughly Large Magellanic Cloud (LMC) stellar-mass galaxy 3 Mpc away, residing at the outer limits of the M81 group. We are mapping a large region around NGC 2403 as part of our Magellanic Analogs’ Dwarf Companions and Stellar Halos survey, reaching point-source depths (90% completeness) of (g, i) = (26.5, 26.2). Density maps of old, metal-poor RGB stars reveal tidal streams extending on two sides of DDO 44, with the streams directed toward NGC 2403. We estimate total luminosities of the original DDO 44 system (dwarf and streams combined) to be M

i,tot = −13.4 and M

g,tot = −12.6, with ∼25%–30% of the luminosity in the streams. Analogs of ∼LMC-mass hosts with massive tidally disrupting satellites are rare in the Illustris simulations, especially at large separations such as that of DDO 44. The few analogs that are present in the models suggest that even low-mass hosts can efficiently quench their massive satellites.
Planet Formation around Supermassive Black Holes in the Active Galactic Nuclei
Authors: Wada Keiichi , Tsukamoto Yusuke , Kokubo Eiichiro 
Published: November 2019

Abstract
As a natural consequence of the elementary processes of dust growth, we discovered that a new class of planets can be formed around supermassive black holes (SMBHs). We investigated a growth path from submicron sized icy dust monomers to Earth-sized bodies outside the “snow line,” located several parsecs from SMBHs in low luminosity active galactic nuclei (AGNs). In contrast to protoplanetary disks, the “radial drift barrier” does not prevent the formation of planetesimals. In the early phase of the evolution, low collision velocity between dust particles promotes sticking; therefore, the internal density of the dust aggregates decreases with growth. When the porous aggregate’s size reaches 0.1–1 cm, the collisional compression becomes effective, and the decrease in internal density stops. Once 10–100 m sized aggregates are formed, they are decoupled from gas turbulence, and the aggregate layer becomes gravitationally unstable, leading to the formation of planets by the fragmentation of the layer, with 10 times the mass of the Earth. The growth timescale depends on the turbulent strength of the circumnuclear disk and the black hole mass M
BH, and it is comparable to the AGN’s lifetime (∼108 yr) for low mass (M
BH ∼ 106
M
⊙) SMBHs.
Radial Variations in Grain Sizes and Dust Scale Heights in the Protoplanetary Disk around HD 163296 Revealed by ALMA Polarization Observations
Authors: Ohashi Satoshi , Kataoka Akimasa 
Published: November 2019

Abstract
The disk of HD 163296 shows ring and gap substructures in observations with the Atacama Large Millimeter/submillimeter Array. In addition, this is the only disk where the rings and gaps are spatially resolved in millimeter-wave polarization measurements. In this paper, we conduct radiative transfer modeling that includes self-scattering polarization to constrain the grain size and its distribution. We found that the grain size and dust scale height are the key parameters for reproducing the radial and azimuthal distributions of the observed polarization signature. Radial variation is mainly determined by grain size. The polarization fraction is high if the particle size is ∼λ/2π; it is low if the particle size is larger or smaller than this. In contrast, azimuthal variation in polarization is enhanced if the dust scale height is increased. Based on detailed modeling of the polarization of HD 163296, we found the following radial variations in the grain size and dust scale height. The maximum grain size was 140 μm in the gaps and significantly larger or smaller in the rings. The dust scale height is less than one-third of the gas scale height inside the 70 au ring, and two-thirds of it outside. Furthermore, we constrained the gas turbulence to be α ≲ 1.5 × 10−3 in the 50 au gap and α ∼ 0.015–0.3 in the 90 au gap. The transition in the turbulence strength at the boundary of the 70 au ring indicates the existence of a dead zone.
La fin de toutes choses : frontières et apocalypse dans les nouvelles de science-fiction du nord-ouest du Mexique
Authors: Fabriol Anaïs 
Published: November 2019

La frontière et l’apocalypse ont ce point commun de symboliser un point de rupture. La fin du monde est souvent mise en perspective dans la narration courte du nord-ouest du Mexique, qui fait également de la frontière un élément quasi omniprésent. Il convient donc de voir de quelle manière s’articulent ces deux figures majeures. Sont-elles complémentaires, et que disent-elles du rapport que la société frontalière et ses imaginaires entretiennent avec la limite géographique ?