bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengontrolan Kecepatan Rotor BLDC UAV Berdasarkan Hasil Identifikasi menggunakan Metode Regresi
Authors: SARTIKA, ERWANI MERRY , MULIADY MULIADY , SARJONO RUDI , YUVENS VINCENSIUS 
Published: January 2021

ABSTRAKPenggunaan dan aplikasi motor Brushless DC cukup banyak di industri, namun masih cukup sulit untuk mengendalikannya. Pada penelitian sebelumnya telah dipelajari karakteristik parameter motor BLDC UAV menggunakan Metode Regresi untuk mengetahui hubungan antar parameter yang ada dalam sistem motor BLDC. Sinyal PWM merupakan salah satu yang menentukan kecepatan rotor dari BLDC. Pada penelitian ini identifikasi model motor BLDC hasil eksperimen digunakan untuk mengendalikan kecepatan rotor secara open loop dan closed loop. Pengendalian secara open loop menggunakan invers model hasil Metode Regresi menghasilkan kesalahan maksimal 3,77% untuk kecepatan rotor lebih dari 3500 rpm. Sedangkan pada pengendalian secara closed loop menggunakan model hasil Metode Regresi dan pengendali PI (Proportional Integral) dengan Kp = 1 dan Ki = 5, secara simulasi menghasilkan kecepatan rotor dengan settling time 1 detik.Kata kunci: motor BLDC, kecepatan rotor, identifikasi model, pengendalian ABSTRACTThe use and application of Brushless DC motors is quite a lot in the industry, but it is still quite difficult to control. In previous research the characteristics of UAV BLDC motor parameters using the regression method to determine the relation of the parameters in the BLDC motor system. The PWM signal is one that determines the rotor speed of the BLDC. In this study the identification of the BLDC motor model experimental results is used to control the rotor speed in open loop and closed loop. Control with open loop using the inverse model of the Regression Method produces a maximum error of 3.77% for rotor speeds of more than 3500 rpm. Whereas control with closed loop using the model of the Regression Method and PI (Proportional Integral) controller with Kp = 1 and Ki = 5, the simulation produces rotor speed with a settling time of 1 second.Keywords: BLDC motor, rotor speed, model identification, control
Alokasi Daya Kirim pada Visible Light Communication menggunakan Algoritma Waterfilling
Authors: LESTARI DIAH AYU , FAHMI ARFIANTO , PAMUKTI BRIAN 
Published: January 2021

ABSTRAKPeningkatan terhadap kebutuhan akses data membuat Visible Light Communication (VLC) menjadi alternatif media transmisi nirkabel yang efisien. Namun berdasarkan performansinya, VLC memiliki permasalahan data rate yang tidak merata diterima oleh User Equipment (UE). Dalam mengatasi permasalahan tersebut, penelitian ini menerapkan alokasi daya kirim dengan algoritma waterfilling yang mampu memberikan keadilan data rate setiap UE berdasarkan nilai kanal. Penelitian ini menggunakan kanal Line Of Sight (LOS) dengan 3 skenario berbeda. Kami menggunakan parameter validasi untuk mengukur setiap kinerja dengan nilai Signal Noise Ratio (SNR), data rate, fairness index dan efisiensi energi. Dari hasil simulasi menggunakan algoritma waterfilling, kami memperoleh nilai fairness index untuk data rate sebesar 100% namun tidak memiliki efisiensi daya. Dengan memodifikasi algorima waterfilling, terjadi penurunan fairness index, SNR serta data rate, tapi memberikan efisiensi energi LED hingga 9%. Dengan demikan, daya yang dipancarkan oleh LED memiliki lifetime yang lebih panjang dengan modified waterfilling.Kata kunci: VLC, Power Allocation, Waterfilling, Fairness. ABSTRACTThe increase in the need for data access makes Visible Light Communication (VLC) an alternative wireless transmission medium that is efficient. However, based on its performance, VLC has a data rate problem that is not evenly accepted by User Equipment (UE). In overcoming this problem, this study applies power allocation with waterfilling algorithm that is able to provide fair data rate for each UE based on channel value. This study uses the Line Of Sight (LOS) channel with 3 different scenarios. We use validation parameters to measure each performance using the Signal Noise Ratio (SNR) value, data rate, fairness index and energy efficiency. From the results of simulation using the waterfilling algorithm, we obtain a fairness index value for the data rate of 100% but does not have a power efficiency. By modifying the waterfilling algorithm, there is a decrease in the fairness index, SNR and data rate, but provide LED energy efficiency of up to 9%. Thus, the power emitted by the LED has a longer lifetime with modified waterfilling algorithm.Keywords: VLC, Power Allocation, Waterfilling, Fairness.
Sistem Identifikasi Usia Manusia pada Citra Panoramic Radiograph Gigi Molar Pertama
Authors: BIRU BANYU , FAUZI HILMAN , OSCANDAR FAHMI 
Published: January 2021

ABSTRAKOdontologi forensik merupakan sebuah cabang ilmu forensik yang melakukan proses identifikasi berdasarkan gigi. Gigi merupakan salah satu bagian tubuh manusia paling kuat kuat. Dalam masa pertumbuhan, gigi manusia mengalami degeneratif pada usia tertentu, sehingga gigi dapat menjadi media dalam proses identifikasi usia. Pada penelitian ini, dirancang sistem pengolahan citra yang dapat mendeteksi usia manusia pada citra radiograf panoramik gigi. Sistem ini menggunakan metode Binary Large Object dan Decision Tree. Berdasarkan hasil pengujian, sistem dapat mendeteksi usia berdasarkan citra gigi molar pertama dengan tingkat akurasi lebih dari 80%, pada saat menggunakan parameter structuring element jenis Disk dengan jari-jari 4 piksel, ciri area dan rasio pulpa, serta jenis algoritma pada decision tree yaitu curvature dengan jumlah 50 percabangan.Kata kunci: citra radiograf panoramik, pulpa gigi, molar pertama, decision tree, binary large object ABSTRACTForensic odontology is a branch of forensic science that carries out dental identification processes. Teeth are one of the strongest parts of the human body In the period of growth, human teeth degenerative at a certain age, so that teeth can be a medium in the process of age identification. In this study, an image processing system was designed that could detect human age on dental panoramic radiographs. This system using the Binary Large Object and Decision Tree methods. Based on the test results, the system can detect age based on the image of the first molar with an accuracy level of more than 80%, when using a Disk type structuring element parameter with a radius of 4 pixels, the area and pulp ratio features, and the type of algorithm in the decision tree, namely curvature with the number of 50 branches.Keywords: panoramic radiograph image, teeth pulp, first molar, decision tree,binary large object
Sistem Multihop Jaringan Sensor Nirkabel pada Media Transmisi Wi-Fi
Authors: SUSANA RATNA , HADIATNA FEBRIAN , GUSMANTINI APRIANTI 
Published: January 2021

ABSTRAKDengan menerapkan sistem multihop pada jaringan sensor nirkabel, pembacaan kondisi lingkungan dapat dilakukan pada lingkungan yang lebih luas. Pada penelitian ini, sistem multihop jaringan sensor nirkabel menggunakan platform IoT NodeMCU V3 yang memiliki modul Wi-Fi ESP8266. Jumlah sensor node yang digunakan merupakan batas maksimal client yang dapat terhubung kepada Wi-Fi ESP8266, yaitu 1 sink node dan 4 sensor node. Sensor node akan mengirimkan datanya kepada sink node, kemudian data tersebut akan dikirimkan kepada website untuk ditampilkan pada dashboard Adafruit.io. Pengiriman data diuji menggunakan 2 topologi yaitu bus dan tree. Berdasarkan hasil pengujian, jarak maksimal pengiriman data pada topologi bus tanpa penghalang adalah 72 meter dengan delay pengiriman 64 detik dan topologi tree adalah 108 meter dengan delay pengiriman 14 detik. Sistem multihop pada topologi bus dan tree dapat mengirim data dengan 2 penghalang yang memiliki ketebalan 15 cm dengan delay pengiriman 29 detik pada topologi bus dan 14 detik pada topologi tree.Kata kunci: jaringan sensor nirkabel, multihop, Wi-Fi, NodeMCU V3 ABSTRACTBy applying a multihop system on wireless sensor network, reading environment condition can be done in wider environment. In this study, multihop system in wireless sensor network uses IoT NodeMCU V3 platform which has a Wi-Fi ESP8266 module. The amount of node sensor is the maximum limit of client which can be linked to Wi-Fi access point in Wi-Fi ESP8266 module, i.e 1 sink node and 4 sink node. The node sensor will transfer the data to the sink node, then the data will be transfered to the website to be shown on Adafruit.io dashboard. The transmission data is tested using 2 topologies, i.e bus and tree. Based on the test, the maximum distance of data transmission in bus topology without barrier is 72 meters with delivery delay which takes 64 seconds and in tree topology is 108 seconds with delivery delay which takes 14 seconds. The multihop system in the bus topology and the tree topology can send the data with 2 barriers which has 15 cm width and delivery delay among the nodes which takes 29 seconds in bus topology and 14 seconds in tree topology.Keywords: wireless sensor network, multihop, Wi-Fi, NodeMCU V3
Optimasi Fuzzy Supervisory Control pada Performa Matrix Converter Drive 3x3 di Empat Kuadran Operasi
Authors: PURWANTO ERA , JATI MENTARI PUTRI , SUMANTRI BAMBANG , FERDIANSYAH INDRA , BASUKI GAMAR 
Published: January 2021

ABSTRAKTeknologi pengemudian motor dengan efisiensi tinggi serta untuk mencapai empat kuadran operasi menjadi perhatian pada bidang pengemudian elektrik. Matrix converter menjadi alternatif utama konverter drive motor karena keunggulan – keunggulannya. Walaupun matrix converter sebagai drive motor mempunyai kompleksitas tinggi, namun dengan dikombinasikan teknik Indirect Space Vector Modulation (ISVM) dapat menghasilkan kepresisian lebar pulsa modulasi (PWM). Untuk pengendali sistem, diterapkan Fuzzy Supervisory Control (FSC), yang merupakan kendali gabungan, agar kecepatan referensi bisa tercapai. FSC dibandingkan dengan kendali konvensional (PI control) untuk membuktikan keoptimalan performa sistem yang diusulkan. Parameter performa sistem dan Total Harmonic Distortion (THD) dianalisis lebih lanjut. Hasil simulasi menunjukkan bahwa sistem yang diusulkan dapat mencapai Error Steady state (ESS) 0% dan THD lebih kecil.Kata kunci: Matrix converter, ISVM, FSC, motor induksi. ABSTRACTMotor-driving technology with high efficiency and to achieve four quadrants of operation is a concern in the area of electric steering. Matrix converter is the main alternative for motor drive converters because of its advantages. Although the matrix converter as a motor drive has a high complexity, combined with the Indirect Space Vector Modulation (ISVM) technique can produce precision pulse width modulation (PWM). For the system controller, Fuzzy Supervisory Control (FSC) is applied, which is a combined control, so that the reference speed can be achieved. FSC is compared with conventional control (PI control) to prove the optimization of the proposed system performance. System performance parameters and Total Harmonic Distortion (THD) are further analyzed. Simulation results show that the proposed system can reach 0% Error Steady State (ESS) and smaller THD.Keywords: Matrix converter, ISVM, FSC, induction motor.
El levamisol en parasitosis gastrointestinal de bovinos
Authors: Soria Carlos , Rodríguez Luis 
Published: January 2021

Los parásitos causantes de gastroenteritis en bovinos parecen ser bastantes frecuentes en las ganaderías de Pichincha en Ecuador. Al tiempo de este estudio (entre agosto y septiembre de 1981 y en los meses de enero a junio de 1982) y mediante análisis coproparasitarios se demostraron infecciones naturales cruzadas en animales entre 0 a 24 meses de edad, reconociendo la presencia de varios nematodos de los géneros Trichostrongylus, Haemonchus, Cooperaria, Oesophagostomun y Ostertagia, citados en orden de abundancia y frecuencia. Aparte de estos géneros también se encontraron algunos huevos de Bunostomun, Trichuris, Nematodirus y Ascaris que aparecieron con escasa frecuencia. Los animales estudiados pertenecían a 100 propiedades localizadas en 10 parroquias de los cantones Pedro Moncayo, Cayambe y Rumiñahui donde se observaron técnicas de manejo de animales y condiciones climáticas y de suelos que se prestan para convertir a la zona en endémica para estas infecciones parasitarias lo que obliga a la implementación de continuos programas anuales de desparasitación si no se controla la vehiculización de quistes, huevos y larvas reptantes. De los animales estudiados, los más jóvenes entre 0 (a) 12 meses fueron los más infectados.
El levamisol, un antiparasitario de amplio espectro para nematodos, probó ser efectivo contra estos parásitos en los estadíos adulto y larvario utilizando 5mg por kg de peso, vía intramuscular. Su efecto se visualizó al comprobarse una reducción altamente significativa en el número de huevos por gramo de heces durante varios días después del tratamiento. Los resultados también indicaron posibles diferencias en la susceptibilidad del levamisol entre un parásito y otro.
Se discute el significado de estas observaciones en términos de la ecología de la zona, las técnicas de manejo de los animales, el ciclo de vida de los parásitos asàcomo las propiedades farmacodinamias y el mecanismo de acción del levamisol.
Fundoplicación como tratamiento para el reflujo gastro-esofágico en niños
Authors: Alvear José Miguel 
Published: January 2021

La entenosis esofágica como consecuencia del reflujo gastro-esofágico es común en la población pediátrica del Ecuador.
La sucesión de eventos es la siguiente: vómito, neumonías recurrentes, falla de crecimiento y estenosis con consecuente malnutrición.
El diagnóstico se confirma con esofagogramas y esofagoscopias. La edad de la población afectada varía entre un mes de nacido hasta doce años.
El tratamiento más apropiado es la fundoplicación de Nissen para restaurar la función esfintérica esófago-gástrica.
Se presentan 10 casos tratados en el Hospital Baca Ortiz de Quito en los últimos 2 años.
Thermoelastic properties nanocomposite chloroprene of rubber with montmorilonit
Authors: Ponomarenko S.M. 
Published: January 2021

The problem that arises during the operation of tires is cyclic deformation, in which there is a conversion of mechanical energy into heat. However, due to the low thermal conductivity of rubber, repeated cyclic loads of products based on them lead to heating, which is due to the phenomenon of mechanical hysteresis. The consequence is a deterioration of their performance over time and, as a consequence, a reduction in service life.
The main method for increasing the interfacial interaction for ceramic fillers is to ensure the penetration of rubber molecules into the interplanar space (gallery) formed by the filler particles (intercalation), and the subsequent distribution of these nanoplates (exfoliation) to a thickness of several nanometers throughout the field.
The aim of this work is to study the thermoelastic properties of rubbers made on the basis of nanosized mineral filler montmorillonite, which may indicate a way to solve the problem of their durability.
It was investigate the influence of modified nanosize montmorilonit on thermoelastic properties of rubber composites on it basis. It is rotined that thermoelastic properties described a model, which takes into account holdings of local increase of tension for a rubber matrix and destruction of spatial net of nanoparticles with the increase of strein, which results in exotherms which show up as a result of friction between the filler particles.
Quantitative analysis of the thermoelastic properties of rubber nanocomposites provides additional confirmation of the concept of the reinforcement factor, which depends on the deformation, and determines the thermoelastic properties of nanocomposites for the whole range of relative elongations.
DEVELOPMENT OF LOVEJOY AND OSBURN’SOVERPARTITION FUNCTIONS
Authors: RatanBhattacharjee Nil , Das Sabuj 
Published: January 2021

In 2008, Lovejoy and Osburn defined the generating function for .In 2009, Byungchan Kim defined the generating function for .This paper shows how to discuss the generating functions for and . Byungchan Kim also defined with increasing relation and overpartitioncongruences mod 4,8 and 64. In 2006, Berndt found the relation has two values with certain restrictions and various formulae by the common term .This paper shows how to prove the four Theorems about overpartitions modulo 8.These Theorems satisfy the arithmetic properties of the overpartition function modulo 8.
DEVELOPMENT OF FOKKINK-FOKKINK-WANG’S GENERATING FUNCTION FOR FFW(n)
Authors: Hossain Fazlee , Das Sabuj 
Published: January 2021

In 1995, R. Fokkink, W. Fokkink and Wang defined the in terms of , where is the smallest part of partition . In 2008, Andrews obtained the generating function for . In 2013, Andrews, Garvan and Liang extended the FFW-function and obtained the similar expressions for the spt-function and then defined the spt-crank generating functions. They also defined the generating function for in various ways. This paper shows how to find the number of partitions of n into distinct parts with certain conditions and shows how to prove the Theorem 1 by induction method. This paper shows how to prove the Theorem 2 with the help of two generating functions.
Socio-Economic Losses of Small Fishermen after Lobster Seeding Banning Policy (Case Study in Batu Nampar Selatan Village, East Lombok Regency)
Authors: Husni Syarif , Yusuf M. , Nursan Muhammad , Utama FR Aeko Fria 
Published: January 2021

ÃÂ ÃÂ ÃÂ ÃÂ ÃÂ ÃÂ The objectives of this study are: 1) to find out the perceptions of small fishermen about PERMEN KP No.1 / 2015 in conjunction with Minister of Marine Affairs and Fisheries Regulation No.56 / 2016, 2) to calculate the social losses of small fishermen after the prohibition policy on the prohibition of fishing for lobster seeds, 3) to calculate the economic losses of small fishermen after lobster seed fishing prohibition policy. This research uses descriptive methods and case studies. Apart from interviews with respondents, it was also conducted using the Focus Group Discussion (FGD) method. The number of respondents was determined as many as 30 people by simple random sampling and the data analysis used consisted of descriptive analysis based on tabulations, and after processing it was presented in tabular form, analysis of people's work days (HKO) and analysis of costs and income.ÃÂ The results showed: 1) The most dominant perception of fishermen is that the existence of the Minister of Marine Affairs and Fisheries Regulation needs to be reviewed and the compensation provided by the government is not in accordance with the conditions of fishermen 2) Social losses for fishermen in terms of employment of 208 HKO / year, and 3) Economic losses, namely the loss of income of small fishermen of 121,329,000 IDR/ year.
PERANAN LITERASI MEDIA DIGITAL DALAM MENCEGAH PENYEBARAN HOAKS
Authors: Ramayanti Rory , Sa'diyah Lailatus 
Published: January 2021

This paper aims to describe and ppreciate various efforts that have been done by the Indoneian government to design the prevention and eradication of to distribution of false information (hoaks), such as (i) Rules of informtion laws and electronic transaction (UU ITE) which gives smoe santions for internet users who distribute negative content and hoaks ; and (ii) release a communication and information ministry regulation number 19 of 2014 about blocking and screening sites and developing a system “TRUST” + Positive” system which the system provides a list of negatively charged sites, but this article also provides a critical note to note from both of it. This paper also emphasize that there are still many thinsg tht can be considered to improve the effectiveness of prevention digital literacy for the community. Reading very rapid and limitless information and tools communication used to obtain such information through digital literacy.
PEMANFAATAN INTERNET SEBAGAI MEDIA AKSES INFORMASI DALAM KONTEK HMC (Handphone Mediated Communication) DI KALANGAN MAHASISWA UIN STS JAMBI
Authors: Rum Muhammad 
Published: January 2021

This article aims to know the internet exploiting through handphone media to access informtion that used by the students of the state Islamic university Sulthan Thaha Saifuddin of Jambi. This result of research has depicted that; firstly, the orient of students in exploiting handpone in framework of self development ; to support the academic activity ( lesson and research), to add the knowledge, experience, and pass the time with the entertainment amusement information. Secondly, the students’s motivation of the state Islamic university Sulthan Thaha Saifuddin of Jambi in exploiting internet as communications media include; inquiring motif namely motivation to know the new things can add knowledge, to think sistimaticly, to have construction idea, and to add the empirical experience; to motivate to compet profesionally and percepcionist, to have effectivness learning method; to have social integration and to get appreciation from academic society. Thirdly, the students’s target to exploit handphone as communications media are; diversion namely to secede from some problems, medium of emotion release; personal relationship namely friendship, social benefit, wide assocciation, firmness contact with the family and others; personal identity namely x'self reference, eksplorasi reality, reinforcement assess, wish to strengthen the self identity, belief, individual status and stability. Fourthly, Form and method of information seeking by student through handphone as communications media through article, PDF, while browsing machine is used generally the Google and Yahoo. The browsing is done only download. Finally, the students’s expectation in exploiting internet for the ptoses of x'self development are; good behaviour namely appearance of student behaviour which like to read, like to discuse to hit the knowledge dynamics in so many angle; corner, to investigate the truth performing of research, like the loran or solitary than talking with others in fad.
DAMPAK SISTIM PENENTUAN KOSA KATA INDEKS PADA KARYA MONOGRAF TERHADAP TEMU BALIK INFORMASI PEMUSTAKA DI DINAS PERPUSTAKAAN DAN ARSIP KOTA JAMBI
Authors: Harys Khatimah 
Published: January 2021

This writing aims to express about the subject analyse system that be done by librarian who has choosed the vocabulary to represent a document. This system analyse is very important because it will impact to information retrieval system. The librarian must analyse a document not only its but also its content, so that he will choose some good vocabularies. The system that had been done by the librarians of Dinas Perpustakaan dan Arsip Daerah Kota Jambi where they focused the topic of document, the uncontrolled vocobulary (bahasa alami) was not be translated in to controlled vocabulary (bahasa indeks), they didn’t think the users who use library. The weakness factors are based on ; the librarian do not understand the foreign language, they can not be indexing, they do not understand the subject analyse process. This condition will affect on the unsatisfaction of users where they will not get a document that be needed, it is not effectiveness in searching, and it is more hingher acquirement than precision.