bluuebunny/crossref_metadata_2025 huggingface dataset:
Perancangan dan Analisis Body Wahana UAV 3 Medan AMPHI-FLY Evo 1.0
Authors: Sapto Agung Dwi , Eka Ria Dia
Published: August 2021

Kendaraan Tanpa Awak (Unmanned Aerial Vehicle) dalam bidang kemanusiaan sudah banyak digunakan, khususnya dalam misi pencarian dan penyelamatan. Tujuan penelitian ini adalah untuk menghasilkan prototipe kendaraan tanpa awak (UAV) yang berfungsi untuk membantu proses pencarian dan penyelamatan pada 3 medan (udara, darat, permukaan air). UAV AMPHI-FLY Evo 1.0 merupakan sebuah teknologi yang dirancang dan dikembangkan untuk memaksimalkan fungsi UAV, yang selama ini hanya memiliki fungsi terbatas pada 1 atau 2 medan dalam pengoperasiannya. Sehingga UAV AMPHI-FLY Evo 1.0 dapat beroperasi di 3 medan sekaligus, yaitu di udara, di darat, dan di permukaan air. Pengembangan teknologi pada UAV AMPHI-FLY Evo 1.0 merupakan solusi agar misi pencarian dan penyelamatan dengan menggunakan UAV lebih optimal dan dapat menjakau berbagai jenis medan yang sulit dan tidak memungkinkan untuk dijangkau manusia. Perancangan dilakukan untuk menentukan spesifikasi komponen wahana UAV AMPHI-FLY Evo 1.0. dilakukan dengan menggunakan software solidworks 2018. Komponen-komponen pada wahana UAV AMPHI-FLY Evo 1.0 secara umum di bagi menjadi 4 kelompok yaitu komponen body utama, komponen penggerak, komponen kelistrikan, komponen tambahan. Komponen wahana yang dirancang adalah Frame, body, lambung kapal (hull), motor penggerak, propeller, rudder, dan estimasi konsumsi baterai. Estimasi berat total wahana yang direncanakan adalah 2807 gr. Frame berfungsi untuk menahan berat wahana dan menunjang performa wahana dalam beroperasi, ukuran Frame yang dipilih adalah 560mm. Body pada wahana memiliki bentuk yang aerodinamis, memiliki nilai Cd=0,0198562. Sedangkan daya hambatan pada body (Pd) didapatkan sebesar 2,4058 watt.
Penentuan Jenis Baja Scrap sebagai Bahan Baku Proses Pengecoran Logam di IKM dengan Metode Spark Testing
Authors: Sukis Muhamad , Rusnaldy Rusnaldy , Paryanto Paryanto , Guterres Natalino Fonseca D.S.
Published: August 2021

Pengecoran logam di Indonesia sangat diperlukan di industri manufaktur, salah satu faktor yang sering terjadi adalah proses pemilihan material awal pada pengecoran, terutama mengetahuai unsur yang terkandung didalam baja scrap. Salah satu metode untuk mengetahui kandungan karbon pada baja scrap adalah metode spark testing. Penelitian ini bertujuan untuk menganalisis karakterisasi spark pada proses gerinda melalui identifikasi jenis baja scrap berdasarkan panjang spark, sudut spark dan sudut kontak spark. Dimensi dari sampel meliputi 100x50x10 mm, sudut pemakanan adalah 75ᵒ dengan grit size batu gerinda yaitu 36, 60 dan 80. Penekanan menggunakan gaya gravitasi dari spesimen itu sendiri selama 30 detik. Perbedaan volume stream dan bentuk karakterisasi spark dipengaruhi oleh kandungan komposisi kimia baja dan grit batu gerinda. Dengan menggunakan metode ini dapat mempermudah identifikasi awal baja scrap sebelum dilakukan pengecoran logam, sehingga hasil yang didapat adalah material dengan kandungan karbon lebih tinggi menghasilkan sudut spark melebar, kemudian sudut kontak akan mengecil dan ukuran spark semakin pendek. Kandungan karbon 0,54%C telah menghasilkan pancaran burst lebih banyak. Menggunakan ukuran batu gerinda 80 grit (fine) telah menghasilkan jarak pada pancaran burts terjadi melebar di semua material.
Desain Sel Elektrolisis untuk Memproduksi MgO dari Limbah Garam Rakyat
Authors: Saefudin Slamet , Sulistyo Sulistyo , Sulardjaka Sulardjaka , Arfiansyah Ryan
Published: August 2021

Pemanfaatan magnesium oksida (MgO) di bidang rekayasa sangat beragam maka diperlukan eksplorasi sumber bahan baku yang tersedia di alam. Limbah garam (bittern) memiliki kandungan magnesium yang cukup tinggi sehingga dapat dijadikan sebagai alternatif bahan baku pembentukan MgO. Pembentukan MgO dari limbah garam dapat dilakukan  dengan proses elektrolisis. Tujuan dari penelitian ini adalah mendesain alat elektrolisis yang dapat digunakan untuk pembentukan MgO dari limbah bittern. Metodologi yang dilakukan meliputi merancang dan membuat alat elektrolisis 2 kompartemen dengan kapasitas total 0,75 liter. Proses elektrolisis dilakukan dengan variasi tegangan listrik  dan variasi waktu yang berasal dari output power supply. Elektrolisis bittern akan menghasilkan endapan magnesium hidroksida (Mg(OH)2) yang kemudian dikeringkan pada suhu 110 oC selama 2 jam. Serbuk hasil pengeringan pada suhu 110 oC dipanaskan kembali pada suhu 700 oC selama 2 jam. Serbuk hasil pemanasan 700 oC dikarakterisasi dengan X-Ray Diffraction (XRD). Analisa XRD menunjukkan bahwa puncak difraksi yang terbentuk pada sudut 2θ merupakan karakteristik dari puncak - puncak difraksi senyawa MgO. Hasil karakterisasi XRD membuktikan bahwa desain alat elektrolisis dapat berfungsi dengan baik.
Analisa Patah Cover Body Sepeda Motor Menggunakan Simulasi Metode Elemen Hingga
Authors: Saputra Eko , Ismail Rifky , Jamari Jamari
Published: August 2021

Cover body merupakan salah satu komponen sepeda motor yang berfungsi sebagai penutup rangka agarterlihat rapi dan sebagai pelindung bagian rangka dan kelistrikan dari kotoran maupun air. Cover body terbuat dari material polypropylene. Sebagian besar kerusakan yang terjadi pada cover body berupa fracture (patah). Tujuan dari paper ini adalah untuk mengetahui penyebab fracture pada cover body sepeda motor Suzuki Smash 110 cc tahun pembuatan 2015. Dua metode analisa kegagalan yang digunakan adalah metode kaji literature dan metode elemen hingga dengan bantuan software FE ABAQUS. Hasil yang diperoleh dari kaji literatur adalah bahwa material polypropylene dapat mengalami kegagalan creep yang dipengaruhi akibat adanya fluktuatif temperatur dan adanya cyclic loading (fatigue), sedangkan hasil simulasi didapatkan letak lokasi konsentrasi tegangan yang terjadi akibat pembebanan statik sebagai pengganti cyclic loading. Kesimpulan dari penelitian ini adalah patah cover body disebabkan oleh perubahan fluktuatif temperatur dan adanya cyclic loading yang merupakan faktor penyebab kegagalan creep terhadap material polypropylene. Kombinasi antara creep dan konsentrasi tegangan akan menyebabkan initial crack yang kemudian terjadi proses crack propagation dan berakhir dengan terjadinya fracture.
Analisa Efek Otomatisasi Proses terhadap Kapasitas Produksi dengan Studi Kasus Mesin Selotip Semi Otomatis di Industri Pengemasan
Authors: Putri Farika Tono , Luthfiansyah Galih , Indrawati Ragil Tri , Prasetyo Budhi , Priyoatmojo Slamet
Published: August 2021

Industri kosmetik adalah industry yang bertumbuh dengan sangat pesat. Tumbuhnya industry kosmetik tersebut menjadikan industry lain yang berhubungan dengan kosmetik turut berkembang. Slah satunya yaitu industry pengemsan. Proses penempelan selotip pada layer karton yang masih manual dikerjakan oleh operator dengan alat potong berupa cutter mengakibatkan seuah industry tidak mampu memenuhi demand konsumen. Pada penelitian ini diekmbangkan sebuah mesin selotip semi otomatis dengan harga yang murah dna mudah dioperasikan. Tujuan dari penelitian ini adalah meningkatkan kapasistas produksi melalui penggantian metode produksi dari konvensional ke semi otomatis. Hasil penelitian menunjukkan efektifitas cycle time sebesar 72% dengan mesin selotip semi otomatis. Kapasitas produksi pun naik 118%.
Work Motivation and Quality of Work Life: Its Impact on Organizational Citizenship Behavior of Regional Government Office Employees of North Minahasa Regency
Authors: Mundung Bertha Ireni
Published: August 2021

The purpose of this study is to determine whether: (1) work motivation has an effect on OCB; (2) the quality of work life affects OCB; (3) work motivation have an effect on the quality of work life. This study used a quantitative approach with a survey method and multiple linear regression used for technique data analysis. The object of research is the local government office employees of North Minahasa Regency. The sample of employees is taken from the Regional Government Office of North Minahasa Regency, while the data collection used a questionnaire instrument. The result of the study showed that work motivation has a direct effect on OCB amount of 6.98%, the quality of work life has a direct effect on OCB amount of 5.95% and work motivation has a direct effect on the quality of work life amount of 2.43%. The results of this study confirmed that OCB can be improved through work motivation and quality of work life.
Angelo Miculescu – Románia kínai nagykövete
Authors: Bandi István
Published: August 2021

Könyvszemle az Angelo Miculescu Ambasador la Beijing. Telegrame desecretizate 1982-1989 című kötetről
Kiberbiztonsági kitekintés
Authors: Selján Péter , Selján Gábor
Published: August 2021

Az információs technológiák dinamikus fejlődésével a kibertér önálló hadszíntérré vált, ahol már évek óta zajlanak az összecsapások a világ nagyhatalmai, elsősorban az Amerikai Egyesült Államok, Oroszország és Kína között. Ugyanakkor a vezető regionális hatalmi és nukleáris ambíciókkal rendelkező Irán, valamint a hozzá hasonlóan a nemzetközi közösség aggodalmát kiváltó, vitatott atomprogramot folytató és ballisztikus rakétatechnológiát fejlesztő Észak-Korea is figyelemre méltó szereplők a kibertérben. Ezen országok már évekkel ezelőtt felismerték a kiberhadviselésben rejlő lehetőségeket és várhatóan egyre több ország kezd majd ilyen irányú fejlesztésekbe, mert a lemaradásnak komoly következményei lehetnek.
Magyar–kolumbiai kapcsolatok: diplomáciatörténeti elemzés
Authors: Hornyák Veronika
Published: August 2021

Magyarország és a dél-amerikai országok kapcsolata a 2015-benmeghirdetett Déli Nyitás stratégia nyomán az utóbbi néhány évben dinamikus fejlődésnek indult. 2017-benszámos más térségbeli államhoz hasonlóan újra megnyitották a magyar nagykövetséget Kolumbia fővárosában, Bogotában is. Az aktuális külpolitikai trendek, valamint a globalizáció és a technikai fejlődés hatására a diplomáciai kapcsolatok egyre inkább felértékelődnek az olyan hazánktól közel tízezer kilométeres távolságra levő országokkal is, mint Kolumbia. Jelen kutatás e körülményekhez igazodva kronologikusan, diplomáciatörténeti elemzés formájában dolgozza fel a kolumbiai–magyar reláció témakörét a 20. század elejétől napjainkig bezárólag.
“The Translanguaging Reader”: Investigating Primary Education Students’ Reading Strategies
Authors: Papadopoulos Isaak
Published: August 2021

Translanguaging has been placed at the center of the research and teaching activity over the last decade, while teachers seem to promote the use of all the linguistic resources of their students in classrooms with linguistic and cultural diversity. Among the best practices for promoting translanguaging and the flexible use of the students’ resources, reading multilingual texts is proposed as an important activity for students who are daily bombarded with a great variety of diverse stimuli. To clarify it more, students tend to come into contact with “texts” in every mode, that are not only offered in their L1 but they usually include and are written in various linguistic codes known or not to them. However, limited research has focused on such issues of reading a text with multilingual wealth, thus this was a major factor and reason behind this research initiative. This paper presents a study that aimed at investigating young learners’ reading strategies when approaching a multilingual text. More specifically, 27 primary education students of Greek origin were provided with two different types of multilingual texts and they were asked to complete a specifically designed record protocol reflecting on their reading behavior. At first, the students came across a text, which was given both in another language and in Greek while at a second phase, the students were encouraged to read a text in which different languages were used. Within this context, an attempt was made to identify the strategies of students prior to reading, while-reading and upon reading with the purpose to shed light into the multidimensional framework of reading a multilingual text. Following the processing of the data derived from the multidimensional research, it was revealed that students employed a great variety of reading strategies before they begin to read the text. Nevertheless, they did not seem to use while-and post-reading strategies to a great extent, when a multilingual text is given to them inciting more interest in raising students’ reading strategies through implementing educational activities.
The Hamas Movement: Ideology vs. Pragmatism
Authors: Schwartz David , Galily Daniel
Published: August 2021

This study aims to present the Hamas Movement, its ideology and pragmatism. With progress and modernization, the Islamic movements in the Middle East realized that they could not deny progress, so they decided to join the mainstream and take advantage of technological progress in their favor. The movement maintains at least one website in which it publishes its way, and guides the audience. Although these movements seem to maintain a rigid ideology, they adapt themselves to reality with the help of many tools, because they have realized that reality is stronger than they are. In conclusions: the rise of the Islamist movements as a leading social and political force in the Middle East is the result of the bankruptcy of nationalism, secularism and the left in the Arab world, which created an ideological vacuum, which is filled to a large extent by the fundamentalists, ensuring that Islam is the solution. It is not only about the extent of the return to religion, but about the transformation of religion into a major political factor both by the regimes and by the opposition. These are political movements that deal first and foremost with the social and political mobilization of the masses, and they exert pressure to apply the Islamic law as the law of the state instead of the legal systems taken from the Western model. Islam is a belief rooted in the consciousness of the masses and deeply ingrained in Egyptian culture. In Israel, the situation is different, modernization and democracy also affects Israeli Arabs. Therefore, it is possible that Islam is not so deeply rooted in the culture of the Arab citizens of Israel, they are aware of the possibility of a different path other than Islam. The movements have developed over time tools that enable them to cope with reality. The religious law in Islam allows flexibility in organizing community life, Shari’a is adapted to reality because of the ruler's ability to canonize legislation and flexibility in political life according to principles such as sabra and long-term goals, to compromise with reality and find temporary solutions, as well as religious scholars who provide fatwas and commentaries on every subject.
State terror in Argentina (1975-1983) as a part of a twentieth century’s history
Authors:   Universidad Nacional de San Martín, Franco Marina , Pontoriero Esteban ,   Universidad Nacional de Tres de Febrero
Published: August 2021

This article explores the history of state terrorism in Argentina during the years 1975-1983, integrating it into a process that covers the entire 20th century. By way of an essay and based on our previous research, as well as on the specific bibliography, the proposal is to explain the conditions of possibility of a paradigmatic case of mass violence including three temporal variables. In the first place, long-term processes are exposed, studying the first decades of the 20th century; then those of the medium term, working on the decades of 1950, 1960 and 1970 and, finally, those of the short term address the conjuncture 1973-1976. Each section deals with a set of analytical elements that we consider essential to understand and explain the process of repressive accumulation that is connected with the massacre of political opponents in the 1970s. In general, we have targeted a series of key actors: the Armed Forces, the Security Forces, constitutional governments, de facto governments, and civil actors linked to the repression. At the same time, we include a set of elements, also decisive: the frameworks of exception, the military doctrine, the dehumanization of the enemy, the legal and illegal methods, and the repressive practices and experiences. We hope to insert state terrorism into a diverse and multi-determined history, in order to better understand and explain a phenomenon of extreme complexity.
The Workers' Party of Marxist Unification (POUM) leadership’s trial in 1938.
Authors:   independent researcher, Melnichenko Tatiana
Published: August 2021

This article is devoted to one of the most tragic topics in the history of this party and the history of the Spanish Republic as a whole, namely, the trial of the leaders of the Workers’ Party of Marxist Unification. The following unpublished documents stored in the Russian State Archive of Social and Political History were used for the analysis (F. 495. Op. 183): letters, personal files, protocols of interrogations after May Days, lists and reports on the “connection” between Trotskyi and the POUM, reports on the preparation and course of the trial of the POUM. Members of the POUM were accused of participating in a “rebellion”, moving to change the social order of the Republic. The accusation of the POUM connections with Franco did not seem convincing, either in Spain or abroad. The international public’s attention was focused on the trial of the POUM. Despite the fact that Spain failed to organize a show trial in the style of the “Moscow trials” and the “conspiracy between Trotskyi and Fascists” was not confirmed, the verdict had a negative impact on the POUM reputation. Thus, the trial of the POUM remained in history as one of the “black spots” in the interaction between the Spanish Republic and the Union of Soviet Socialist Republics. However, the prisoners of the POUM resisted pressure, they were supported morally by participants of the campaign of solidarity in Spain and abroad. The struggle for a kind of rehabilitation of the party continued in emigration.
Radial distribution of electrons rotation moment in hall effect and plasma-ion thrusters
Authors: Guo Zongshuai
Published: August 2021

The subject matter of the article is the radial distribution of electrons movement parameters inside electric propulsion thrusters with closed electrons drift. The radial magnetic field in Hall effect thrusters is the limits the axial flow of electrons because of interaction with azimuth electron current. In turn, this azimuth current exists as a result of rivalry between the attempt of the magnetic field to transform electrons current completely closed one and the loss of electrons rotation moment in collisions. Similar processes take place in the ionization chamber of plasma-ion thrusters with the radial magnetic field. The attempts to estimate electrons parameters through only collisions with ions and atoms inside volume have given the value of axial electrons current much lower than really being. This phenomenon is called anomalous electrons conductivity, which was tried to be explained as a consequence of various effects including "near-the-wall-conductivity", which was explained as a result of non-mirror reflection of electrons from the Langmuir layer near the walls of the thruster channel. The disadvantage of this name is the fact that the reflection of the electron occurs before reaching the surface from the potential barrier at the plasma boundary with any environment: the wall, but also with the environment vacuum. The potential distribution in the Langmuir layer is non-stationary and inhomogeneous due to the presence of so-called plasma oscillations. The definition of "conductivity" is just as unfortunate in this name, because the collisions are always not a factor of conductivity, but on the contrary – of resistance. The goal is to solve the task of electrons rotation moment distribution in the thruster channel. The methods used are the formulation of the kinetic equation for electrons distribution function over the velocities, radius, and projections of the coordinates of the instantaneous center of cyclotron rotation; solution of this equation and finding with its use the distribution of the gas-dynamic parameters of electrons along the cross-section of the channel. Conclusions. A mathematical model of electrons rotation moment dynamics is proposed, which allows using plasma-dynamics equations to analyze its distribution along the cross-section of thruster channel and to estimate the effect of "near-the-wall-conductivity" using appropriate boundary conditions.
Фізичне моделювання та діагностика попадання сторонніх предметів в обертову систему
Authors: Бурау Надія Іванівна , Паздрій Ольга Ярославівна
Published: August 2021

The paper analyzes the vibroacoustic signals obtained by physical modeling of the rotating system, for example, an aircraft gas turbine engine, in the conditions of steady-state and non-steady-state modes. An air starter (supercharger) is used as a physical model of a rotating system, which is driven by a DC motor. The measuring system uses a dynamic microphone with an amplifier, a tachometer, a two-channel digital oscilloscope, a personal computer with technological and special software. The simulation of the ingress of foreign objects into the rotating system is performed by throwing paper balls during the rotation. The multilevel processing based on sequential application of methods of frequency-time analysis, multispectral analysis, and fractal analysis is proposed and substantiated for processing of measured vibroacoustic signals. The results of the frequency-time analysis showed that at the time of throwing the balls the intensity of the components at higher frequencies increases. For fragments of signal realization without throwing and with the throwing of balls the multispectral analysis is carried out and estimates of the bispectrum modulus are received in the form of contour images. At the third level of signal processing, the Minkowski dimension of the contour images of the bispectrum module estimates is determined. The Minkowski dimension is an integral quantitative indicator of the geometry of isolines and differs in value for the selected fragments of the vibroacoustic signal. So it can be used as a diagnostic sign of a foreign object entering the rotating system at the final level of processing. The obtained results can be used to improve the systems of condition monitoring of complex rotating systems, increase sensitivity, expand functionality and provide multi-class diagnostics in the event of damage and violation of normal operating modes
Модель Ізінга для опису магнітних властивостей елементів системи керування авіаційним двигуном
Authors: Товкач Сергій Сергійович
Published: August 2021

The creation of competitive engines is impossible without the development and implementation of new materials and design and technological solutions. At present, in the engines, nickel alloys obtained by directional crystallization are widely used, including monocrystalline, granular alloys. The use of various composite materials, permanent joints from dissimilar materials is constantly expanding, extensive research is being carried out to create a structure from monolithic ceramics and intermetallic compounds. The successful introduction of unconventional materials is impossible without a thorough study of their structural strength, magnetic properties, features of deformation, and destruction, taking into account the specifics of these materials when developing the design and manufacturing technology of a part or engine unit. The article discusses a software package for the optimal design of control system elements for aircraft gas turbine engines using a description of their magnetic properties. Due to the modular structure of the optimization program, various optimization procedures and calculation programs can be used. It was determined that, for the Ising model, the formation of domains with a given spread of spins at a temperature T and a vector of magnetic induction B is calculated array element using a random number generator. The number of tests L depends on the size of the sample. In the Ising model, all parts of the N*N system are contenders for testing. So, Step corresponds to the number of Monte Carlo steps. Since the parts are selected once on average, it is possible to select one particle several times or not to select it at all. Therefore, the Step value should be significantly greater than one. For a convenient implementation of a certain model, its application with a graphical magnetization interface with a different number of iterations has been considered. When executing the command file, the following should be performed: building a geometric model, building a finite element mesh, applying loads, calculating the stress-strain state (SSS), displaying the results.
Структура потока в межлопаточном канале соплового аппарата с поворотной диафрагмой
Authors: Жирков Александр Григорьевич , Усатый Александр Павлович , Авдеева Елена Петровна , Торба Юрий Иванович
Published: August 2021

In the process of developing a numerical study method of a flat flow around a snap line with a rotary diaphragm, calculations were made at various degrees of opening the rotary diaphragm δ and pressure drops on the grille. As a result of calculations, for small degrees, the opening of the rotary diaphragm, complex patterns of the flow were obtained, in the inter-tube channel of the nozzle apparatus. The article presents some results of a numerical study of the supersonic flow in the channel of the nozzle apparatus with the degree of opening the rotary diaphragm δ = (0.15 ÷ 0.3). Modeling and calculating the flow of the working fluid is made using the Fluent software package. The construction of the calculated areas bounded by one inter-tube channel, for varying degrees of opening the diaphragm of the nozzle apparatus. Grids are built for calculated areas. Calculations were carried out for δ = (0.15 ÷ 0.3) and with different degrees of pressure drop on the grille. As a result of the calculations performed, the flow patterns in the inter-tube canal were obtained and behind it, and the distribution of the coefficients of the kinetic energy loss on the lattice front at various degrees of the discovery of the diaphragm at the inlet in the nozzle apparatus. According to the results of the work carried out, the following conclusions can be drawn: the structure of the stream in the inter-tube channel, the nozzle apparatus at small detection of the discovery, is divided into two parts: a supersonic core of the spawth of the blade and a dialing, the vortex zone at the back of the blade; The supersonic thread kernel at certain values of the relative pressure drop on the lattice (or the air flow values through the grid) is separated by shock fronts into several areas; The coefficients of energy loss, for small degrees of discovery, decrease with a decrease in the relative pressure drops (with an increase in the rate of expiration of the flow from the nozzle lattice); The greatest contribution to the magnitude of the loss of kinetic energy is introduced by a vortex zone in the inter-tube channel, and not wave phenomena in the core of the flow; Optimization of the flow part of the nozzle apparatus must be carried out in order to reduce areas with vortex flow. The results obtained in this work will be used to develop a methodology for a numerical study of the spatial flow around the nozzle lattices with rotary diaphragms.
Влияние антикоррозионных пленкообразующих составов на усталость авиационных конструкций. Обзор исследований
Authors: Карускевич Михаил Витальевич , Игнатович Сергей Ромуальдович , Маслак Татьяна Петровна , Семенец Александр Иванович , Гаврилов Евгений Павлович
Published: August 2021

Corrosion of aircraft structures is one of the main factors limiting the duration of their operation, affecting on the economic efficiency and safety of air transport. Corrosion protection is performed at the stage of manufacturing aircraft structures, during their repair and operation. One of the additional measures of anti-corrosion protection is the use of film-forming coatings, which displace moisture from the gaps of structural joints, form a protective film, and also slow down the corrosion process. The protective properties of film-forming coatings are investigated by standard corrosion tests. At the same time, the specifics of aircraft structures and the possible side effects of the use of anti-corrosion compounds require special studies. The article presents an analysis of works in which the effect of film-forming anticorrosive compounds on the fatigue of elements of aircraft structures is considered.The main type of joints in the structure of modern aircraft are riveted joints. The high penetrating ability of film-forming materials ensures their penetration into the gaps of riveted joints, which, in some cases, can affect the frictional forces between the connected elements, which ensure the integrity of the joints. In some experimental investigations, the influence of film-forming compositions on the kinetics of fatigue crack growth is noted as a side effect. A number of possible mechanisms of deceleration and acceleration of the rate of crack propagation are considered. Experimental data concerning the effect of anticorrosive compounds on the fatigue of riveted joints and the process of propagation of fatigue cracks in structural materials, indicate the need to develop a universal methodology for the selection and use of film-forming compositions for the protection of aircraft structures from corrosion, taking into account the minimization or prevention of negative side effects on the service life of aircraft.
Methods of clustering parameters in the creation of neural network multi-mode dynamic models of aircraft engines
Authors: Тамаргазин Александр Анатолиевич , Приймак Людмила Борисовна , Шостак Валерий Владиславович
Published: August 2021

The presence on modern aviation gas-turbine engines of dozens and even hundreds of sensors for continuous registration of various parameters of their operation makes it possible to collect and process large amounts of information. This stimulates the development of monitoring and diagnostic systems. At the same time the presence of great volumes of information is not always a sufficient condition for making adequate managerial decisions, especially in the case of evaluation of the technical condition of aviation engines. Thus it is necessary to consider, that aviation engines it is objects which concern to individualized, i.e. to such which are in the sort unique. Therefore, the theory of creating systems to assess the technical state of aircraft engines is formed on the background of the development of modern neural network technology and requires the formation of specific methodological apparatus. From these positions in the article the methods which are used at carrying out clustering of the initial information received at work of modern systems of an estimation and forecasting of a technical condition of aviation gas-turbine engines are considered. This task is particularly relevant for creating neural network multimode models of aircraft engines used in technical state estimation systems for identification of possible failures and damages. Metric, optimization and recurrent methods of input data clustering are considered in the article. The main attention is given to comparison of clustering methods in order to choose the most effective of them for the aircraft engine condition evaluation systems and suitable for implementation of systems with meta-learning. The implementation of clustering methods of initial data allows us to breakdown diagnostic images of objects not by one parameter, but by a whole set of features. In addition, cluster analysis, unlike most mathematical-statistical methods do not impose any restrictions on the type of objects under consideration, and allows us to consider a set of raw data of almost arbitrary nature, which is very important when assessing the technical condition of aircraft engines. At the same time cluster analysis allows one to consider a sufficiently large volume of information and sharply reduce, compress large arrays of parametrical information, make them compact and visual.
Modelo de melhoria no processo de comunicação em uma Instituição Federal de Ensino
Authors: Matos Fernanda de Souza Ribeiro
Published: August 2021

Este estudo apresenta o processo de comunicação como produto intrínseco das organizações. O desenvolvimento com qualidade e eficácia deste objeto trará benefícios a curto, médio e longo prazo para a cadeia estratégica das instituições. O presente trabalho busca identificar – em um departamento de uma Instituição Federal de Ensino localizada na capital do Rio de Janeiro – as principais barreiras que prejudicam a comunicação organizacional no departamento, identificar a frequência do fluxo de informação no departamento junto aos colaboradores, identificar a frequência e a eficácia dos meios de comunicação utilizados, com o objetivo principal de propor um modelo com as mudanças que podem ser implementadas, a fim de, obter maior qualidade e eficácia em seu processo de comunicação organizacional interno. Para isto, seu processo metodológico desenvolveu um levantamento de informações e dados primários com uma pesquisa estruturada em 75 questões, onde os colaboradores responderam anonimamente. Questões estas, distribuídas em tópicos correlacionados com os objetivos específicos desta pesquisa. O modelo de resultado apresentado neste trabalho contribuirá como instrumento de pesquisa e método de tratamento de dados que pode ser utilizado em outros departamentos e instituições públicas para aprimoramento de seu processo organizacional interno.
Фінансове право в умовах цифрової трансформації
Authors:   Національний університет «Одеська юридична академія»
Published: August 2021

Монографія присвячена сучасному етапу світового економічного та соціального розвитку, що характеризується процесами цифровізації, впливаючи на сферу публічних фінансів та вимагаючи модернізації шляхів вдосконалення правового регулювання, адекватного цифровій економіці. У монографії вчені представили своє бачення вирішення найактуальніших проблем правового регулювання фінансових відносин в умовах цифрової трансформації. Висвітлено питання правового регулювання бюджетних та податкових відносин в умовах цифрової трансформації, правових засобів захисту публічних інтересів від агресивного податкового планування в епоху цифрової економіки, правового регулювання місцевих бюджетів в умовах децентралізації, забезпечення єдності судової практики розгляду податкових спорів у призмі реалізації принципу юридичної визначеності, проаналізовано актуальну практику вирішення податкових спорів. Для науковців, практичних працівників, викладачів, студентів та широкого кола читачів.
Vietnam’s Confucianism within the Dynamics of Globalization
Authors:   Universidad de Guadalajara, Riveros Lozano Cid Marco
Published: August 2021

The objective of this article is to further the study of Confucianism and its distinct expressions, focusing on Vietnam’s case, where it is proposed that Confucianism has followed an exceptional path from its origin, in China’s Shandong peninsula 2,600 years ago, up to its adoption by Vietnamese society. In the article, it is hypothesized, through a geopolitical analysis and particularly David Harvey’s uneven geographical developments, that Confucianism in practice, even if already implanted within certain structures of the Vietnamese society, has been displaced in the areas where globalization has impacted the most. Nevertheless, after having concluded the analysis, said hypothesis is discarded; although, given the rapid changes Vietnamese society is undergoing, future investigations may prove otherwise.
Mexican cities in the new normality: interactions between technologies and digital risk
Authors:   Instituto de Investigaciones Sociales, UNAM, Jasso López Lucía Carmina , Amaro Rosales Marcela
Published: August 2021

The article aims to analyze the relationship between digital technologies and the risk associated with digital gaps in some mexican cities in the context of the new normal. It is based on the premise that Covid-19 has meant a profound social transformation that has implied a greater use of digital technologies, which can translate into greater technological inequalities. The methodology of this research is based on digital ethnography and hypothesizes that the processes of technological implementation were accelerated to try to contain the contagions, mainly through digitalization; however, this type of actions are limited by previous conditions of the characteristics of Mexican cities, which would imply a widening of their technological gaps, as opposed to what is considered a hybrid city model.
PENGEMBANGAN STRATEGI SISTEM PENYALURAN AIR BERSIH DARI ASPEK TEKNIK, SOSIAL, DAN EKONOMI DI KABUPATEN MANGGARAI, FLORES, NUSA TENGGARA TIMUR
Authors: Pampe Yulianus Usima wisran
Published: August 2021

Air merupakan kebutuhan dasar bagi makhluk hidup termasuk manusia, dalam menunjang kebutuhan sehari-hari. Dengan semakin bertambahnya jumlah penduduk dari tahun ketahun, maka jumlah kebutuhan air juga semakin bertambah. Sistem yang digunakan sekarang dalam penyaluran air ke masyarakat masih sangat kurang sehingga masih terdapat beberapa daerah yang belum terlayani. Oleh karena itu dibutuhkan pengembangan jaringan distribusi pelayanan air bersih.Pengembangan sistem penyaluran air bersih tersebut dilakukan menggunakan pendekatan aspek teknik, ekonomi dan sosial, dengan proyeksi 10 tahun mendatang. Pada aspek teknik penyaluran air bersih menggunakan software epanet dalam upaya pembagian jalur distribusi air bersih. Hasilnya berupa pembagian loop dan tapping yang berfungsi sebagai penyaluran air. Pada aspek ekonomi dilakukan dengan merancang anggaran biyaya yang akan di keluarkan dalam proyek pengembangan air bersih. Sedangkan pada aspek sosial dilakukan dengan cara pengisihan kuisioner dan wawancara terhadap masyarakat yang belum terlayani air bersih, kemudian dianalisa menggunakan analisa swot. Oleh karena itu perlu adanya pengembangan yang dilakukan dalam menunjang kebutuhan akan air bersih, melalui desain yang modern yang sesuai dengan kebutuhan masyarakat.
PENGARUH VARIASI VOLUME PEWARNA DAN MASSA GUM ARAB PADA KECEPATAN PENGERINGAN DAN VISKOSITAS TINTA DARI KULIT BUAH NAGA
Authors: Imani Lazuardi , Haryanto Haryanto
Published: August 2021

Indonesia adalah negara tropis yang ditumbuhi berbagai jenis tanaman, salah satu tanaman yang banyak tumbuh di Indonesia adalah tanaman buah naga. Tanaman buah naga sering dimanfaatkan sebagai jus atau langsung dimakan buahnya, akan tetapi limbah kulit buah naga masih kurang pemanfaatannya. Kulit buah naga memiliki zat antosianin yang tinggi. Zat antosianin dapat digunakan dalam pembuatan tinta dan bertindak sebagai pigmen dalam tinta, sehingga dibutuhkan penelitian pembuatan tinta dari kulit buah naga. Penelitian dilakukan di Laboratorium Teknik Kimia Universitas Muhammadiyah Surakarta, dengan rentang waktu ± 3 bulan. Penilitian yang dilakukan adalah memanfaatkan zat antosianin dalam kulit buah naga sebagai pigmen tinta dengan membuat variasi volume pewarna dari kulit buah naga sebanyak 9 ml, 12 ml, 15 ml, 18 ml, dan 21 ml dengan massa gum arab dengan rasio 1:3, 1:4, 1:5, 1:6, dan 1:7. Variasi ini bertujuan untuk menentukan efek pada laju pengeringan dan viskositas tinta  dan volume optimal pewarna dan massa gum arab yang akan digunakan. Sehingga tingkat penyerapan dan viskositas tinta baik. Penelitian ini dilakukan dengan menggunakan metode ekstraksi ultrasonik untuk mendapatkan pewarna. Bahan pendukung dalam penelitian ini adalah alkohol, air, dan resin (gum arab). Setelah larutan tinta homogen diperoleh, tes tinta dilakukan yang meliputi uji kecepatan pengeringan, densitas, dan viskositas. Dengan begitu limbah kulit buah naga dapat diaplikasikan sebagai bahan pembuatan tinta
BIOMONITORING MAKROZOOBENTOS SEBAGAI INDIKATOR KUALITAS AIR SUNGAI
Authors: Ali Munawar , Rosyadi Hilmi Irham
Published: August 2021

Penelitian telah dilakukan pada bulan September-Oktober 2018 sampel diambil dari 5 stasiun penelitian dan dilakukan 1 kali sampling/Minggunya sampai 4 Minggu. Titik pengambilan sampel ditentukan dengan metode Purposive Random Sampling, sampel diambil dengan menggunakan Bottom Grab.Dari hasil penelitian didapatkan prosentase sebanyak famili Unionidae 1%, famili Corbiculidae 3%, famili Buccinidae 6%, famili Viviparidae 15%, famili Thiaridae 75%. Nilai Indeks Keanekaragaman (H’) pada kelima stasiun per Minggunya mempunyai Nilai Indeks Keanekaragaman tinggi-rendah (1,735-0,234), Nilai Dominansi (C) pada kelima stasiun per Minggunya mempunyai Nilai Indeks Dominansi tinggi-rendah (0,88-0,088), Nilai Keseragaman (E) pada kelima stasiun per Minggunya mempunyai Nilai baik-buruk (0,924-0,16). Dari Hasil analisis statistik PCA didapatkan nilai Eigenvalue kedua komponen utama mewakili 51,48%, 22,89% dari seluruh variabilitas. Bila diakumulasikan, kedua komponen utama menyatakan 74,37% dari total variabilitas. Ini berarti apabila kelima variabel (pH, Suhu, DO, COD, Indeks H’) direduksi menjadi 2 variabel, maka kedua variabel baru dapat menjelaskan 74,37% dari total variabilitas kelima variabel.
POTENSI PEMANFAATAN SLAG ALUMINIUM SEBAGAI SUBSTITUSI SEMEN DALAM PROSES STABILISASI/SOLIDIFIKASI LIMBAH B3 DENGAN KAJIAN PUSTAKA (STUDI KASUS : PT.X KECAMATAN KESAMBEN, JOMBANG)
Authors: Saraswati Komang Ardya Putri , Razif Mohammad
Published: August 2021

Slag aluminium tergolong limbah bahan berbahaya beracun (B3) dalam PP 101 tahun 2014 dengan kode B313-2 dan efeknya kronis. Penelitian ini bertujuan untuk mengetahui potensi pemanfaatan slag aluminum dengan menganalisa karakteristik limbah, proses solidfikasi dan kualitas kuat tekan dan TCLP produk solidifikasi. Hasil penelitian menunjukkan karakteristik slag memiliki kandungan unsur B3 sesuai PP 101 tahun 2014 wajib dikelola, salah satunya dengan Stabilisasi/solidifikasi. Metode analisa pemanfaatan solidifikasi limbah slag aluminium dalam penelitian dilakukan dengan pengahancuran (crushing), penggilingan (grinding), pemilahan (sorting) dari aluminium dross dan pemulihan metal dengan peleburan. Slag berpotensi dimanfaatkan sebagai bahan konstruksi seperti beton geompolimer, bata beton, batako, dan paving block. Komposisi slag aluminium dengan solidifikasi menunjukkan tidak melebihi 20% karena produk akan mengalami perlindian. Uji Kuat Tekan slag tertinggi pada PT.X jombang sebagai paving block tertinggi yaitu 36,8 Mpa yang dapat dimanfaatkan sebagai lahan parkir. Uji TCLP dari pemanfaatan slag aluminium memenuhi standar USEPA dan aman bagi lingkungan.

Kata Kunci : slag aluminium, solidifikasi, kuat tekan, TCLP
STRATEGI PENGHALANG SINAR MATAHARI OTOMATIS PADA UNIT HUNIAN RUMAH SUSUN DI PENJARINGANSARI SURABAYA
Authors: Zuhri Syaifuddin , Firdauzy Karina , Ghozali Imam
Published: August 2021

Pemanfaatn potensi alam yang berlimpah seperti sinar matahari, khususnya di Surabaya, merupakan tantanga tersendiri. Poetensi tersebut dapat dimanfaatkan guna pencahayaan alami di dalam bangunan. Salah satu upaya tersebut adalah bagaimana mengupayakan agar potensi sinar matahari tersebut dapat dimanfaatkan secara optimal dengan pengendalian bukaan ruang yang dapat beradaptasi dengan pergerakan matahari pada siang hari. Penelitian dilaksanakan secara kualitatif dan kuantitatif guna mengukur adaptasi bergeraknya perangkat penghalang matahari yang ditempatkan di depan bukaan ruang unit hunian denagn menggunakan panel penghalang sinar matahari yang digerakkan oleh perangkat linear actuator yang dikontrol oleh mikrokontroller Arduino, sedangkan sensor LDR digunakan untuk mendeteksi arah datangnya sinar matahari. Dari hasil penelitian didapatkan bahwa perangkat panel pembayangan sudah mampu untuk membuka dan menutup sesuai pergerakan sinar matahari dengan kuat pencahayaan alami antara pukul 10.00 sampai pukul 15.00.
PEMETAAN TINGKAT BAHAYA BENCANA LONGSOR DAN SISTIM PERENCANAAN TATA LETAK BANGUNAN DALAM TATA RUANG WILAYAH KOTA BAUBAU
Authors: Handa Idham , Taufik Taufik
Published: August 2021

Penelitian menganalisa tingkat rawan longsor dan distribusinya serta merumuskan arahan sistim informasi tata letak bangunan untuk menghindari bahaya longsor. Penelitian menggunakan desain deskriptif kuantitatif dan desain survei.  Objek analisis adalah kemiringan lereng, penggunaan lahan, jenis tanah, curah hujan, geologi, infrastruktur, keberadaan sesar atau patahan patahan, dan gawir serta kepadatan pemukiman. Data dianalisis secara deksriptif kualitaif dan analisis spasial (ArcView 3.2).  Kerawanan longsor di Kota Baubau pada kategori “aman” seluas 17.515,47 ha, “rawan rendah” seluas 11.185,43 ha dan kerawana “sedang” seluas 60,94 ha. Arahan penataan ruang tata bangunan di Kota Baubau untuk wilayah “aman” diperbolehkan dilakukan pembangunan bangunan gedung. Wilayah potensi “rendah” diperbolehkan aktifitas pembangunan bangunan gedung dengan tetap mempertahankan kawasa lindung atau ruang terbuka 30 %, sedangkan wilayah potensi “sedang” diperbolehkan aktifitas pembangunan bangunan gedung dengan tetap mempertahankan kawasan lindung atau ruang terbuka 30 % dan memperketat ijin penyelenggaran bangunan gedung.
PERENCANAAN SISTEM MANAJEMEN K3 FAKULTAS TEKNIK UPN “VETERAN” JAWA TIMUR
Authors: Setiawan Gilang Nur Dwi , Hidayah Euis Nurul
Published: August 2021

Fakultas Teknik UPN “Veteran” Jawa Timur memiliki jumlah tenaga kerja yang berjumlah 100 orang, yang bertugas di Laboratorium maupun luar laboratorium. Menurut Per. 05 / MEN / 1996 yang menunjukan bahwa tempat kerja yang terdapat 100 orang atau lebih mengandung potensi bahaya yang dapat mengakibatkan kecelakaan kerja. Untuk mewujudkan perguruan tinggi yang memiliki safety, maka perlu direncanakan Sistem Manajemen K3 yang dapat menjadi referensi atau pedoman untuk Fakultas Teknik UPN “Veteran” Jawa Timur. Untuk penyusunan Draft dan penerapannya dilakukan dengan pengamatan proses kerja dan Identifikasi bahaya pada setiap laboratorium di Fakultas Teknik. Berdasarkan hasil identifikasi bahaya dan penilaian resiko bahwa jenis bahaya yang memiliki tingkat nilai resiko tinggi sejumlah 49, tingkat nilai resiko sedang sejumlah 19, dan tingkat nilai resiko rendah sejumlah 38, hal ini belum dapat diterima dan sebaiknya perlu diadakan pelatihan.
EFISIENSI METODE DEEP FLOW TECHNIQUE UNTUK MENURUNKAN BOD, COD DAN TSS PADA LIMBAH CAIR DOMESTIK MENGGUNAKAN TUMBUHAN KAYU APU DAN KANGKUNG AIR
Authors: Putra Raka Rulistyanto Prakoso , Cahyonugroho Okik Hendriyanto
Published: August 2021

Di indonesia, terdapat berbagai pencemar lingkungan, salah satunya berasal dari aktifitas rumah tangga. Maka dari itu, muncul berbagai ide dalam penanganan lingkungan yang tercemar. Salah satunya menggunakan metode  fitoremediasi. Dalam penelitian ini menggunakan tumbuhan kayu apu (pistia stratiotest l) dan kangkung air (ipomea aquatica) yang ditanam menggunakan sistem hidroponik. Dalam hidroponik terdapat dua sistem, yaitu sistem DFT (deep flow technique) dan NFT (nutrient film technique). Pada penelitian ini menggunakan dua macam sistem, dengan penambahan aerasi dan tanpa aerasi, dengan variasi jarak antar tumbuhan 5cm, 10cm dan 15cm dan menggunakan dua jenis tumbuhan, yaitu kangkung air dan kayu apu. Lama penelitian yang dilakukan 15 hari, 7 hari pertama aklimatisasi dan 8 hari terakhir penelitian utama. Hasil penelitian menunjukan bahwa perlakuan paling optimal terdapat pada tumbuhan kayu apu dengan jarak antar tumbuhan 5cm, dengan penambahan aerasi dan menggunakan sistem DFT mencapai BOD 58,41%, COD 32,36% dan TSS 62%.