bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Dampak Erection Box Girder Proyek Jalan Tol Ujung Pandang Seksi 3 terhadap Kecepatan Kendaraan (Studi Kasus Jalan Tol Layang A.P. Pettarani Shoring P71-P72 dan Launching Gantry (LG) P46-P47)
Authors: . Mursalim , Rumengan Yuanda , Thioritz Stevy , Sumule Debry
Published: December 2022

Penelitian ini dilakukan di Proyek Jalan Tol Ujung Pandang Seksi 3, Jalan AndiPangeran Pettarani, Makassar Sulawesi Selatan. Tujuannya untuk mengetahui kinerjalalu lintas Jalan A. P. Pettarani akibat erection box girder. Span LG P46-P47 dan Span Shoring P71-P72.Berdasarkan analisis hasil perhitungan kecepatan rata-rata kendaraan pada saat erection box girder pada span P71-P72 adalah 11,21 km/jam, sedangkan kecepatan rata-rata kendaraan sebelum konstruksi 52,50 km/jam, atau mengalami penurunan kecepatan sebesar 78,65%. Untuk hasil perhitungan kecepatan rata-rata kendaraan pada saat erection box girder pada span P46-P47 adalah 27,44 km/jam, sedangkan kecepatan rata-rata kendaraan sebelum konstruksi 50,56 km/jam, atau mengalami penurunan kecepatan sebesar 45,73%.
Exploring Everyday Nationalism and Methodological Nationalism through Migration Research in Early Childhood and Early Childhood Education
Authors: Imre Robert , Millei Zsuzsa
Published: December 2022

This paper considers the intersections of migration research in early childhood/education with issues of nationalism. Based on four articles which address migration and inclusion in four Nordic states, first, we demonstrate how migration research can serve as a fertile source for studying everyday nationalism and exploring its operation in teaching and learning settings. Second, applying a critical lens to this type of migration research opens up a reflective space for evaluating the inherent methodological nationalism of some migration research approaches. Our explorations in the article establish the need to rethink the categorizations of migration research in early childhood / education. The set of questioning we develop aid in identifying on the one hand, everyday nationalism and its operation in early childhood / education and on the other hand, methodological nationalism. Without reflexivity on methodological nationalism, migration researchers will keep falling into the trap of reifying everyday nationalism through the analytical and practical categories they draw on for their research.
DEVELOPMENT OF MODELS OF OPENING OF ROD STRUCTURES FOR EMERGENCY RESCUE WORK IN WEIGHTLESSNESS
Authors: Кutsenko L. , Кalynovskij А. , Sukharkova O.
Published: December 2022

To perform rescue operations in weightlessness, a method is proposed for shaping bar structures, the elements of which are connected like a four-link pendulum. The movement of the links of the structure occurs due to the action of the impulses of the pyrotechnic engines on the end points of the links. The description of the movement of the resulting inertial opening of the rod structure is made using the Lagrange equation of the second kind and, taking into account the conditions of weightlessness, constructed using only the kinetic energy of the system.
The relevance of the topic is determined by the need to improve and study new technological schemes for opening the frameworks of space infrastructures. Among them are frames of structures of mechanical grippers (such as "robot arms") located outside the spacecraft.
On the basis of the inertial opening of four-link rod structures, schemes of manipulator action for capturing cylindrical bodies, the axes of which are parallel or perpendicular to the surface of the spacecraft, have been developed. The parameters and initial conditions for starting the movement of a four-link rod structure are determined in order to obtain the necessary arrangement of the links. It is shown that for the implementation of variants of inertial opening it is necessary to apply a set of unified pyrotechnic devices, the impulse values of which are determined by the coordinates of the vector U1={0.1, 1.9, 1.3, 2.5} conventional units. Graphs of the change in time of the functions of the values of the angles as generalized coordinates are constructed.
The results are intended for geometric modeling of options for opening four-link bar structures under weightless conditions. For example, frames for orbital infrastructures, as well as mechanical manipulators for capturing space objects
OPTIMIZATION OF DISTRIBUTION OF INSULATION ON THERMAL INSULATION SHELL OF ENERGY EFFICIENT BUILDINGS
Authors: Martynov Viacheslav , Chyrva Tetiana
Published: December 2022

Nowadays, the issue of improving the energy efficiency of new buildings and thermal modernization of existing housing is acute. This can be done due to the rational insulation of external enclosing structures, the optimal redistribution of insulation on the edges of buildings, taking into account the thermal energy impact of the environment.
Existing regulations regulate the minimum level of heat transfer resistance through the enclosing structures of buildings, but do not take into account such features of thermal energy impact of the environment as the level of heat from solar radiation and wind. Thus, the issue of optimal redistribution of the normative amount of insulation between the faces of the building's thermal insulation shell remains legitimate, taking into account the thermal impact of the environment in order to minimize heat loss through enclosing structures, which will increase energy efficiency of buildings.
To solve the above problem, the method of optimizing the heat transfer resistance of translucent and opaque enclosing structures under different conditions and the structure of optimizing the redistribution of insulation between the faces of enclosing structures is proposed.
SCHEME OF MULTIPLICATIVE REPRESENTATIONS FOR A STOCHASTIC EQUATION WITH TWO WIENER PROCESSES
Authors: Nagolkina Zoya , Filonov Yuri
Published: December 2022

In this paper we consider a stochastic differential equation with two independent Wiener processes in an infinite-dimensional Hilbert space. This equation can be a mathematical model of a dynamic system in the presence of several independent perturbing random factors. To study the parameters of this equation, the Daletsky-Trotter method of multiplicative representations is used. This method is applied to both deterministic and stochastic equations. The method consists in the following: one constructs a partition of the interval of existence of the solution [t0, T] into elementary [tk+1, tk]. On each elementary segment, the evolutionary resolving operator of the complete equation S(tk+1, tk) is considered, as well as the product of the resolving operators of equations that are fragments of the complete equation =Q1k×S1k×S2k

Thus, two multiplicative families consisting of different resolving operators are compared. When the equivalence conditions, which are verified in this paper, are satisfied, it can be argued that the solution of a stochastic equation can, in a certain sense, be represented as a composition of the corresponding solutions of differential equations on elementary intervals, the right parts of which are drift, and, accordingly, diffusion.

Moreover, in order to implement such a multiplicative scheme in the case of several independent Wiener processes, additional requirements regarding diffusion coefficients should be imposed. Namely: the diffusion coefficients must be commuting operators, continuous in time.

The scheme of multiplicative representations is based on the study of the parameters of evolutionary families of decision operators, as well as their estimates in the norms of the corresponding spaces. In this case, to obtain a certain estimate, several iteration steps are considered for the corresponding equations in the Hilbert space. It should be noted that the scheme of multiplicative representations can be interpreted as a scheme for obtaining an approximate solution.
PARQUETS FROM REGULAR FIVE-POINTED AND TEN-POINTED STARS
Authors: Nitsyn Alexander
Published: December 2022

Obviously, regular pentagons cannot fill a plane without overlaps and gaps. However, the plane can be filled without overlaps and gaps with polygons whose angles are multiples of 36°. For example, if a regular pentagon is changed into a regular five-pointed star, composed of five rhombuses with angles of 72° and 108°, and supplemented with five rhombuses with angles of 36° and 144° to form a regular decagon, then the resulting rhombuses can fill the plane without overlaps and gaps.

It is assumed that, in addition to the presented method of tiling the plane with the rhombuses pointed out above, there are other ways of tiling the plane without overlaps and gaps with polygons whose angles are multiples of 36°. This explains why the challenge of tiling a plane with regular pentagons attracts the attention of not only geometers, but also designers who create new types of ornaments. Moreover, the regular pentagon among other types of regular polygons has the highest aesthetic qualities, and parquets made up of polygons, the angles of which are multiples of 36°, surpass other types of parquet in beauty and perfection. Therefore, the working out of methods for tiling a plane without overlaps and gaps with polygons, the angles of which are multiples of 36°, is an actual challenge for both geometers and designers creating new types of ornaments.

For the first time, two variants of the parquet, composed of rhombuses forming five-pointed and ten-pointed stars, were worked out. If in the first variant the center of the parquet is a five-pointed star, then in the second variant it is a ten-pointed star. Moreover, if in the first variant the parquet does not have a single plane of symmetry, then in the second variant the parquet has twenty planes of symmetry. Another difference is that if in the first variant the parquet has a rotational symmetry with a 5th order symmetry axis, then in the second variant it has a rotational symmetry with a 10th order symmetry axis. Common to both variants of parquet is that they belong to non-periodic parquets, that is, they are new, previously unexplored types of Penrose mosaics. It is assumed that our further research will be directed to the invention of parquet, which has neither translation nor rotation symmetry, and at the same time maintains order in the arrangement of tiles.
ROLLING OF A DEVELOPABLE HELICOID OF THE SCREW LINE ALONG ITS BENDING
Authors: Pylypaka Serhiy , Kresan Тetiana , Hropost Vyacheslav , Babka Vitaliy
Published: December 2022

A very common helical surface in various mechanisms is a straight closed helicoid or screw conoid, known in the technical field as a screw. Considering the wide application of screws, there are various methods of their production (winding, rolling, stamping, stretching flat rings welded together on a shaft). Since the surface of the screw conoid is nondevelopable, the flat ring is an approximate sweep of the screw, since an exact sweep does not exist. During the formation of the turn of a screw conoid from a flat ring, plastic deformations occur in it, caused by the transformation of a developable surface into a nondevelopable one.

It is known from differential geometry that any screw surface can be bent into a surface of revolution. For a screw conoid, such surface is a catenoid. The paper presents parametric equations for the continuous bending of a catenoid into a screw conoid. It is proposed to replace the compartment of the catenoid, which corresponds to the given compartment of one turn of the conoid, with a truncated cone. The sweep of this cone in the form of a flat ring can be considered a blank for forming the surface of a conoid. A comparative analysis of the sizes of the ring obtained by the proposed method with the sizes that can be obtained according to the formulas of the reference literature were made. Although there are differences, but they are practically insignificant.

As a result of the study of the continuous bending of a catenoid into a screw conoid, an improvement of the process of such bending is proposed. In one of the existing methods of forming a screw from flat rings, several rings in the form of a sector are proposed to be welded together and then stretched to obtain a screw with the same number of turns. Welded rings are put on the shaft, one end is fixed to it (for example, by welding), and the other is stretched to the desired size. With this method, the twisting of the workpiece around the axis of the shaft is not taken into account. It is necessary to bend truncated cones from separate sectors, weld them together, and only then stretch them. In this case, the twist angle is already embedded in the workpiece in the form of welded cones.
THE TRANSPORTATION OF THE MATERIAL PARTICLE BY THE VERTICAL AUGER
Authors: Pylypaka Serhii , Volina Tatiana , Nesvidomin Andrii , Babka Vitaliy , Shuliak Ivan
Published: December 2022

The functioning of machines deals with the interaction of the particles of the technological material with the working bodies of devices. Particles of the material are forced to choose a trajectory of sliding along the surface. Moreover, the surface of the working body can be movable, for example, it can make a rotational movement. In this case, the movement of the particle will consist of the relative movement of the particle (sliding of the particle along the surface) and the translational (rotational) movement of the surface itself. The relative motion of a particle is considered relatively to a moving coordinate system. The sum of these movements gives the absolute trajectory along which the particle moves in a fixed coordinate system. Successive differentiation of the length of the trajectory over time will give the absolute speed and acceleration of the particle. In mechanics, during solving problems of the dynamics of a material point, equations of equilibrium of the applied forces are compiled in projections on the axis of the spatial coordinate system. This coordinate system can be fixed or movable. In our case, such a system is a moving coordinate system – the accompanying Frenet trihedron of the guide curve. The movement of the trihedron along the guide curve is a translational movement, the movement of a point in the trihedron system is relative. The article considers the lifting of a particle by a transporting body in the form of a vertical auger, which is limited by a coaxial cylindrical casing. When the auger rotates, the particle moves to the periphery and begins to interact with the cylindrical casing. The particle simultaneously slides along both surfaces and rises up in absolute motion. Its relative movement is sliding along the helical line – the periphery of the auger. The differential equations of the motion of a particle in projections on a moving coordinate system, which rotates together with the auger, have been compiled. The equation is solved by numerical methods and graphs of kinematic characteristics, including relative and absolute trajectories, are constructed. The limiting value of the angle of rising of the helical line – the periphery of the screw, at which the rising of the particle stops at a given angular speed of rotation of the auger – has been determined.
COMPUTER MODELING AS A METHOD AND MEANS OF IMPROVING CONSTRUCTION MACHINES
Authors: Ragulin Vitaliy , Yaryzhko Oleksandr , Nazarko Olga
Published: December 2022

The task of improving the educational process, improving the quality of education in the field of engineering and the effective use of technical methods and tools in the design and modernization of construction equipment using computer software is the most pressing modern task.

The emphasis in education, which is transferred to the independent work of the student without changing the approaches and methods of teaching disciplines, and even more so specialized subjects, has a negative impact on the quality of the future specialist. Especially in such a difficult time, when you have to completely switch to distance learning, it is extremely necessary to change the approach to learning, especially in senior courses.

The creation of complex complexes and machines is accompanied by a significant number of intermediate tasks. The use of the whole complex of construction equipment is mainly used in various technological operations and with the use of various replaceable work equipment.

Modern pace of road construction dictates high requirements for modern technology, one of the important parameters of which is the utilization rate of the machine over time. When performing technological operations, the load from the ground is transmitted through the main working body to all elements of the suspension mechanism of the working equipment.

The use of software allows you to preview any activity during the simulation allows you to check for security, reduce costs, and sometimes find new ways to implement, without conducting expensive tests. To do this, it is necessary to pre-model the node, unit, module, which will interact in a complex system.

The use of modeling will assess the appearance of the finished product and its structural elements. At the moment, the development of objects of any kind cannot but be accompanied by the creation of a 3D model. This process will allow you to analyze the accuracy of all components that will interact when installed on a designed or existing machine.
THEORY OF FORMATION OF GARMENT ELEMENTS IN THEIR DESIGN AND PRODUCTION USING HYGROTHERMAL PROCESSING
Authors: Kardash Oleg
Published: December 2022

The article examines the problematic issues of development and use of engineering methods that are scientifically comprehensive in design and planning and directly in the production processes of elements of sewing products. The contradiction between the principles of project and production-technological formation in the form of a chain is specified: "construction - technology - material - form - expertise". The problem of qualitative assurance of artistic and design design, which provides a quantitative assessment of product quality characteristics, is indicated and solved. The possibility of estimating a certain metric dimension related to the parameters of the obtained form from taking into account the technological properties of the processed materials. In the processes of forming with the use of hygro-thermal treatment, the following are not taken into account: compaction of the material as the limits of longitudinal compression; areas where changes in the mesh angle of the material occur. It has been proven that for these processes, the transition from planar action on the material to linear action along a curvilinear contour is optimal, and the process of convexity formation was performed for the first time. A real sample of the obtained convexity is presented and analytical modeling is performed with the determination of the relationship between the ability material for forming - technological properties of the material and parameters of the form. Devices for the study of dry and moistened samples by the method of determining the critical value of material deformation are proposed. The prospect of further research is the introduction of the developed complex direction of research and implementation of form-making in innovative developments with the proposal of joint participation and discussion to researchers.
Energy-saving technology for processing of exhausted etching solutions with obtaining of ferromagnetic compounds
Authors: Samchenko Dmitry N. , Kochetov Gennadii М. , Vasiliev Aleksey , Derecha Dmitry A. , Skirta Yurii B. , Lastivka Oles V.
Published: December 2022

Exhausted etching solutions are the waste of industrial enterprises and contain toxic pollutants that have a detrimental effect on the environment. Currently, the processing of these solutions to obtain marketable products is important. The paper presents the results of research on the application of the ferritization method for processing of exhausted etching solutions of steel surfaces. Energy-saving activation of the process by alternating magnetic fields was used, which has undeniable advantages compared to traditional thermal activation. The influence of the initial concentration of iron ions in the reaction mixture of ferritization process and the methods of its activation on the treatment quality of exhausted etching solutions was studied. It was established that the best degree of extraction of heavy metal ions from exhausted etching solutions by ferritization is achieved when the reaction mixture is activated by alternating magnetic fields at an initial concentration of iron ions of 6.6 g/dm3 . At the same time, the residual concentration of iron ions in purified solutions does not exceed 0.03 mg/dm3 , that corresponds to degree of purification of solutions of 99.999%. Those solutions can be reused in situ. The qualitative and quantitative composition of ferritization sediments was studied. Phases of ferroxygite δ-FeOОН, magnetite Fe3O4 and maghemite ɣ-Fe2O3 were detected by X-ray phase analysis in the sediments. It was established that at the initial concentration of iron ions of 26.6 g/dm3 with thermal activation of the reaction mixture and 16.6 g/dm3 with alternating magnetic fields activation, the sediment exclusively contains the magnetite phase. The results of the study indicate the possibility of further use of sediments for the production of important industrial products and materials containing ferromagnetic compounds. The implamitation of improved ferritization process in industrial enterprises will allow to achieve decrease of energy consumption compared to known technologies of exhausted etching solutions processing.
Modeling and calculations of parameters of the joint treatment of organic contaminations (OC) and nitrogen (N) compounds in bioreactors with using of the fixed biocenosis (biofilm)
Authors: Oliynyk Oleksandr Ya. , Telyma Sergiy V. , Kalugin Yuriy I. , Oliynyk Yevheniy O.
Published: December 2022

The mathematical models and the parameter calculations of the simultaneous waste water treatment from the organic contaminants and ammonium nitrogen compounds in the bioreactors-aerotanks with additional fixed biocenosis as a biofilm in their volume are proposed. The questions connected with heterogeneous structure of biofilm from different bacteria and the substantiation of the balance equations system with kinetic reactions for following their realization which are describing of the simultaneous removing organic contaminations (OC) and nitrogen (N) in biofilm taking into account on the oxygen regime O2 are considered. Detailed analysis of aerotank operation with additional fixed biocenosis shown about the possibility of creation of the new conditions for simultaneous removing of the OC and nitrogen by the suspended and fixed biocenosis. At the same time the arrangement of the aerotank-mixture from the three sections where the simultaneous treatment have a place is recommended taking into account on the theoretical substantiation of these sections in one reactor. It is shown that on the different loads the complex heterogeneous structure of the biofilm is formed which consist of from different bacteria. So near the biofilm surface it consists of the heterotrophs during the removing of OC and at during of removing of nitrogen from the autotrophs. At the same time more active heterotrophs may to grow as in anaerobic as in anoxic conditions and the processes that have a place in the biofilm at the simultaneous treatment are connected with the growing of the competition between the heterotrophs and autotrophs in the fight to oxygen. Heterotrophy that are situated are near surface of the biofilm are using of more oxygen than autotrophy that are in the lower part of one. As a result of realization of the created models taking into account on the influence of the different factors on the simultaneous waste water treatment from OC and N processes the recommendations to parameter calculations are proposed. Besides of the boundary conditions of necessary bacteria presence at which the simultaneous removing of the OC and N are occurred and at which conditions some of substrates will limit the waste water treatment processes are determined.
The problem of pollution of drinking water with nitrate ions and modern methods of its solution
Authors: Kravchenko Marina , Vasylenko Lesya
Published: December 2022

The article discusses various regulatory documents that regulate the content of nitrate ions in drinking water, as well as the impact of nitrates on human health and safety. The results of studies on nitrate ion contamination of sources of drinking water supply in 5 regions of Ukraine are presented. Physico-chemical analysis was carried out for water sources from wells in rural areas, city limits and in the territories adjacent to cities. The relevance of the problem of water pollution with nitrate ions, which requires the search, implementation and improvement of water purification methods from nitrates, has been proven. A comparative analysis of the advantages, disadvantages and features of the use of various methods of removing nitrate ions from drinking water, including water from non-centralized sources of water supply, was carried out. Biological, ion-exchange, adsorption, electrochemical methods, as well as baromembrane methods, in particular the reverse osmosis method, are used to purify water from nitrate ions. The regularities of the reverse osmosis process during the removal of nitrate ions from model solutions and water from wells were studied. Reverse osmosis membranes manufactured in the USA by Filmtec type TW30-1812-50 were used for experimental studies. Model solutions of Mg(NO3)2, Zn(NO3)2 and, directly, water from non-centralized sources of water supply were used as the tested water. Membrane selectivity and permeate selection coefficient were determined according to the known method. Parametric curves of the dependence of the selectivity of the membrane in relation to NO3- on the increase of the working pressure from 0.5 MPa to 1.9 MPa for model solutions of different concentrations were constructed. The dependences of the change in the concentration of nitrate ions in well water and the selectivity (φ, %) of the membrane in relation to NO3- on the working pressure were obtained. On the basis of the research results, a conclusion was made about the high efficiency of water purification from nitrates by low-pressure reverse osmosis (in the range from 0.5 MPa to 1.9 MPa) and the parameters of the researched process were determined, which would allow reaching the MPC standards for nitrates in drinking water.
Improvement of the technology of local wastewater treatment of the meat plant
Authors: Sabliy Larysa , Zhukova Veronika , Yepishova Liudmyla
Published: December 2022

An improved technology for the local treatment of industrial wastewater of a meat processing plant is proposed for the intensification of cleaning processes and an increase in the efficiency of local treatment of industrial wastewater of a meat processing plant according to the indicators: HSC, SPAR, phosphates, ammonium nitrogen, fats, and obtaining purified water in accordance with regulatory requirements at discharge into the city sewer. According to the proposed technology, industrial wastewater after the existing grease trap and concentrator is pumped to reactive flotation using an alkaline reagent and coagulant - aluminum sulfate, with the production of coagulant flakes as a result of coagulation, removal of pollutants from water and separation of phases in the form of flotation sludge and sediment and purified water with quality indicators in accordance with regulatory requirements. The flotation sludge formed during wastewater treatment is diverted to a collector and taken away, and the sediments are recommended to be dewatered on a filter press and taken away. On the basis of the performed experimental studies, it was established that when aluminum sulfate is used as a coagulant at a dose of 250-300 mg/dm3 at a pH of 7-7.5, the effects of cleaning industrial wastewater of a meat processing plant are: water - 460-670 mg/dm3; suspended substances - 90-95%, the content of suspended substances in purified water - 10-23 mg/dm3; SPAR - 88%, SPAR content in purified water - 0.43-0.08 mg/dm3; phosphates - 62-65%, phosphate content in purified water - 3.6-5.4 mg/dm3; ammonium nitrogen - 40-42%, ammonium nitrogen content in purified water - 15.3-17.0 mg/dm3. An improved technology for local treatment of industrial wastewater using coagulation and flotation methods has been developed, the implementation of which will allow obtaining high-quality purified water, the indicators of which meet the regulatory requirements for the discharge of wastewater into the drainage system of the city of Kharkiv.
Calculation methods of a combined resourcesaving system of manure removal on pig-rearing complexes
Authors: Briukhanov A. Yu. , Shalavina E. V. , Vasilev E. V.
Published: December 2022

Relevance. The use of liquid fraction of pig manure as technical water for manure removal is a resourcesaving solution. Applying this solution in designing combined resource-saving manure removal systems requires calculation and accounting methods for the manure nutrients and suspended matter, which pass into the solid and liquid fractions during manure separation. The study aimed to develop a methodology for calculating the quantity and quality of manure fractions for the case when a part of the liquid fraction would be used in the manure removal system.

Methods. Calculations were based on the data from a pig rearing complex located in the Leningrad region, with 65,100 heads on the complex at any one time. The calculation results were compared with the actual values from the protocols of laboratory analyses.

Results. The developed methodology will allow the farm to make a more efficient accounting plan for nutrients passing into organic fertilisers. It will also save up to 47 450 tons of clean water for the manure removal system per year.
Fundamentos de comportamiento organizacional
Authors: Chenet Zuta Manuel Enrique , Salazar Garcés Génesis Kristel , Garcés Garcés Norma Narcisa , Lagos Reinoso Gladys Gioconda , Bastidas Guerrón Jeaneth Lucía
Published: December 2022

Más allá de la infraestructura, de la tecnología y de la trascendencia social de sus funciones, las organizaciones están constituidas, ante todo, por personas que, gracias a su esfuerzo, logran cumplir los objetivos propuestos internamente. Este libro aborda, precisamente, las estrategias que pueden aplicarse en las organizaciones para gestionar de la mejor manera ese complejo y diverso componente humano. El objetivo de sus autores es ofrecer una reflexión profunda y metódica que permita entender el comportamiento de las personas, el mejor modo de orientarlas, las estrategias para motivarlas y las maneras de impulsarlas a que se conviertan en una verdadera ventaja competitiva. Todas las personas encargadas de liderar organizaciones, procesos o de llevar adelante trabajo con grupos de personas deberían leer esta obra para conocer aquellos aspectos básicos de la conducta humana, desde disciplinas tan variadas como la psicología, las ciencias políticas y la sociología
Analisis QoS Pada Layanan Streaming Untuk Konfigurasi Jaringan Wireless
Authors: Simamora S N M P
Published: December 2022

Abstrak - Kebutuhan masyarakat atas penggunaan layanan-data seiring dengan kemajuan teknologi informasi dan komunikasi, atau umum diistilahkan dengan telematika; cukup memicu dorongan perubahan dan perbaikan metode serta teknik komunikasi-data. Terlebih lagi keinginan yang lebih untuk menyajikan bentuk komunikasi dua-arah yang interaktif untuk tujuan kejelasan informasi yang dibutuhkan. Bisnis dan teknologi cukup erat saling membutuhkan seperti sebuah simbiosis mutulisme yang saling mengisi kekurangan untuk perbaikan lebih baik demi sebuah tujuan kelancaran aktivitas yang padat dan just-in-time. Persoalan atas kebutuhan penyajian informasi yang cepat dan akurat serta dapat dipercaya adalah faktor kunci utama terselenggaranya dukungan telematika dalam kegiatan bisnis dan organisasi. Dan saat ini layanan-streaming cukup mendorong minat end-user memanfaatkannya dalam kegiatan bisnis dan organisasi. Pada penelitian ini telah dilakukan serangkaian pengujian secara observasi dengan dukungan tools dan infrastruktur jaringan komunikasi data, yakni private dan public. Adapun parameter Quality of Service sebagai acuan pengukuran performansi pada kanal-data dari layanan-streaming, dimana diamati pada ukuran latency, delay, dan throughput. Skenario yang ditetapkan berupa pembagian alokasi bandwidth dari kanal-data yang dibangun. Hasilnya menunjukan adanya pengaruh signifikan antara konfigurasi jaringan, teknik alokasi bandwidth, dan ratio bandwidth terhadap throughput yang diperoleh.Kata kunci: latency, quality of services, manajemen bandwidth, layanan-streaming, kanal-data
Klasifikasi Sentimen Terhadap Maxim Menggunakan Algoritma SVM Pada Media Sosial Twitter
Authors: Pranata Anggi , Budianita Elvia , Yusra Yusra , Cynthia Eka Pandu
Published: December 2022

Abstrak - Twitter merupakan media sosial yang penggunanya paling pesat. Seiring perkembangan waktu, setiap ojek online memiliki popularitas di masing-masing user. Contoh saja Maxim, pendatang baru yang menyediakan layanan yang berbeda dengan ojek lain. Salah satu aktivitas yang biasa dilakukan para fans atau haters kepada akun twitter ojek online yaitu memberikan komentar pada tweet, untuk mengetahui komentar para fans dan haters diperlukan klasifikasi dengan menggunakan machine learning. Pada penelitian ini, langkah pertama adalah dilakukan proses sortir dan pemberian label pada data tersebut. Hasilnya akan tercipta 3 label yaitu label data positif, netral dan label data negatif dengan jumlah 1200 data. Selanjutnya melakukan analisa preprocessing data yang meliputi case folding, cleansing data, tokenizing, filtering dan stemming. Lalu dilakukan pembobotan dengan metode TF-IDF dan diklasifikasikan dengan metode Support Vector Machine. Hasil pengujian dilakukan dengan metode Confussion Matrix, berdasarkan hasil pengujian diperoleh akurasi terbaik pada perbandingan data 90:10 sebesar 85% dengan menggunakan Kernel RBF dan Polynomial, dilanjutkan dengan kernel Sigmoid sebesar 82,5% dimana hasil klasifikasi didominasi kalimat positif.Kata kunci: analisis sentiment, klasifikasi, ojek online, support vector machine, twitter Abstract - Twitter is one of the Social Medias which has a rapid user. Over the time, every Ojek Online, has its own popularity among their users. Maxim, for instance, a newcomer which provides a different service from other online motorcycle taxies. One of the activities which is always do by the fans or haters toward twitter account of online motorcycle taxies is giving comments on tweet. To identify the comments from fans or haters is required classification by using Machine Learning. In this research, the first step was sorting process and labelling the data. As the result 3 labels would have created, which were positive data label, neutral data label, and negative data label with total of 1200 data. The next step was conducting the analysis of preprocessing data which included case folding, data cleansing, tokenizing, filtering and stemming. Then, the weighting was carried out using the TF-IDF method and classified by the Support Vector Machine method. The test results were carried out using the Confusion Matrix method, based on the test results, the best accuracy was obtained at a data comparison of 90:10 by 85% using the RBF Kernel and Polynomial, followed by the Sigmoid kernel of 82.5% where the classification results were dominated by positive sentences.Key word: classification, Ojek Online, sentiment analysis, support vector machine, twitter
Perancangan Aplikasi Pembayaran Jasa Layanan Salon Menggunakan Pemrograman Java
Authors: Perangin-angin Elvi Sunita , Kuswanto Andi Diah
Published: December 2022

Abstrak - Dengan adanya kemajuan teknologi sebagai pendukung pemrosesan data dan informasi, komputer menjadi kebutuhan pokok perusahaan. Perusahaan dagang, jasa dan industri serta semua sektor ekonomi yang ada pada saat ini sudah menggunakan komputer sebagai pendukung usahanya. Salon adalah usaha yang bergerak dibidang kecantikan. Dalam kegiatan pembayaran pada salon masih manual. Jika terus berlangsung, hal ini tentu akan menghambat perkembangan perusahaan, karena akan menghambat kinerja dan efektifitas bagian administrasi, seperti peluang terjadinya kesalahan pemrosesan, validitas data, penyimpanan data yang tidak terorganisir, ketidak akuratan data dan lain-lain. Perancangan program untuk pembayaran adalah sebuah solusi yang sangat tepat untuk menangani permasalahan yang ada, karena selain membuat sebuah proses pembayaran sangat penting karena sering terjadi kesalahan pada proses pembayaran dan menyebabkan kerugian bagi perusahaan. Oleh karena itu perancangan program pembayaran pada salon ini dapat mengurangi kesalahan dan peningkatan efisiensi. Jadi akan meningkatkan kemajuan perusahaan. Penulis menggunakan bahasa pemrograman java, karena memiliki keuntungan yaitu memiliki sarana akses data yang lebih cepat, karena lebih sedikit mengetik, secara otomatis kesalahan lebih kecil karena sintaks pemrograman juga tidak perlu dihafalkan lagi karena semuanya telah disediakan di dalam menu pilihana yang tinggal dipilih sesuai kebutuhan dan anda untuk membuat aplikasi database yang berkemampuan tinggi.Kata kunci: Pembayaran jasa, layanan salon, java
Klasifikasi Penerima Bantuan Covid-19 Menggunakan Metode Weighted K-Nearest Neighbour
Authors: Mustofa Adi , Okfalisa Okfalisa , Cynthia Eka Pandu , Yelfi Yelfi , Gusti Siska Kurnia
Published: December 2022

Abstrak - Di awal tahun 2020 ini, World Health Organization (WHO) menerima laporan dari Cina mengenai kejadian infeksi berat yang belum diketahui penyebabnya. Kemudian WHO memberi nama virus ini sebagai Covid-19 pada 11 februari 2020. Covid-19 berdampak besar pada perekonomian global termasuk pada perekonomian Indonesia. Akibat penyebaran virus covid-19 banyak pelaku usaha mikro kecil (UMK) dan koperasi yang tidak bisa melakukan aktifitas usaha, Pelaku Industri Kecil yang tidak bisa melakukan aktifitas produksi, Jasa transportasi umum konvensional atau online dalam kota ,buruh, pekerja, atau tenaga harian lepas yang tidak memiliki pekerjaan, dan pekerja sektor formal yang dirumahkan atau korban Pemutusan Hubungan Kerja (PHK). Pemerintah daerah memberikan bantuan bagi masyarakat yang terdampak pandemi Covid-19. Dalam menentukan kelayakan penerima bantuan di kelurahan wonorejo masih menggunakan sistem manual, dimana penentuannya berdasarkan kriteria-kriteria dari hasil rekap data .Sehingga dalam jumlah data yang besar membutuhkan waktu yang relatif lama, serta ketelitian yang tinggi dalam menentukan kelayakan penerima bantuan. Untuk mengatasi permasalahan tersebut diperlukan sistem klasifikasi yang diharapkan dapat menentukan penerima bantuan. Metode yang dapat digunakan adalah Weighted KNN. Setelah dilakukan pengujian dengan Confusion Matrix dengan nilai k=5 didapatkan tingkat akurasi sebesar 87.69%.Kata Kunci: Bantuan, Covid-19, Klasifikasi, K-Neearest Neighbor, Weighted KNN. Abstract - In early 2020, the World Health Organization (WHO) received a report from China regarding the incidence of severe infections with unknown causes. Then on February 11, 2020 WHO named it as COVID-19. Covid-19 has had a major impact on the global economy, including the Indonesian economy. Due to the spread of the Covid-19 virus, many micro, small and medium enterprises and cooperatives are unable to carry out business activities, Small industry that unable to carry out production activities,public transportation service workers in the city both, laborer , and freelancer without a job, and laid-off formal sector workers. Local governments provide assistance to communities affected by the Covid-19 pandemic.  In determining the class of beneficiaries in Wonorejo District, the manual system is still used, where the determination is based on criteria from the results of the data recap. So that large amounts of data require a relatively long time, and high accuracy in determining the class of beneficiaries. To overcome these problem tersebut require classification system that expected to be able to determine the class of beneficiaries. The method that can be used is Weighted K-NN.The result of the Confusion Matrix method obtained an accuracy rate of 87.69%.Key Word:  Assistance, Covid-19, Classification, K-Neearest Neighbor, Weighted KNN
Penerapan Metode FP-GROWTH Untuk Analisa Pola Konsumsi Makan Penderita Diabetes Melitus
Authors: Rahayu Fratiwi , Budianita Elvia , Syafria Fadhilah , Afrianty Iis
Published: December 2022

Abstrak - Penyakit diabetes melitus adalah gejala yang timbul terhadap seseorang akibat kadar gula darah yang tinggi atau hiperglikemia. Kemenkes (2018) menyebutkan bahwa faktor yang dapat menyebabkan terjadinya diabetes melitus salah satunya adalah berdasarkan faktor konsumsi makan. Penelitian ini bertujuan untuk menemukan pola makan dari penderita diabetes melitus. Data yang digunakan pada penelitian ini adalah data yang didapat setelah melakukan wawancara dan penyebaran kuesioner pada penderita diabetes melitus di Puskesmas Melur dan Rumah Sakit Aulia Hospital. Adapun atribut yang akan digunakan pada penelitian ini yaitu jenis kelamin, penyakit penyerta, terapi, frekuensi makan, makanan pokok, konsumsi sayur, konsumsi buah, konsumsi protein nabati, protein hewani, konsumsi gula, makanan ringan, makanan instan, dan minuman manis. Penelitian menggunakan algoritma FP-Growth dengan nilai confidence 100% dan minimum support 40%. Tools yang digunakan RapidMiner 9.1 sehingga didapatkan 13 rules. Dari 13 aturan asosiasi yang dihasilkan dapat disimpulkan bahwa penderita diabetes melitus yang mengkonsumsi sayur 1 porsi dalam sehari, konsumsi buah 1x dalam sehari, dan mengkonsumsi makanan instan 3x dalam seminggu maka penderita diabetes melitus merupakan penderita diabetes terkontrol.Kata kunci: Algoritma FP-Growth, Diabetes Melitus, RapidMiner, Support Abstract - Diabetes mellitus is a symptom that arises in a person due to high blood sugar levels or hyperglycemia. The Ministry of Health (2018) stated that one of the factors that can cause diabetes mellitus is based on eating consumption factors. This study aims to find the diet of people with diabetes mellitus. The data used in this study are data obtained after conducting interviews and the distribution of questionnaires in people with diabetes mellitus at the Melur Health Center and Aulia Hospital. The attributes that will be used in this study are gender, comorbidities, therapy, frequency of eating, staple foods, vegetable consumption, fruit consumption, consumption of vegetable protein, animal protein, sugar consumption, snacks, instant foods, and sugary drinks. The study used the FP-Growth algorithm with a confidence value of 100% and a minimum support of 40%. Tools used by RapidMiner 9.1 so that 13 rules are obtained. From the 13 association rules produced, it can be concluded that people with diabetes mellitus who consume 1 serving of vegetables in a day, consume fruit 1x in a day, and consume instant food 3x in a week, people with diabetes mellitus are controlled diabetics.Keywords : FP-Growth Algorithm, Diabetes Mellitus, RapidMiner, Support
Penerapan Data Mining Dalam Mencari Pola Asosiasi Data Tracer Study Menggunakan Equivalence Class Transformation (ECLAT)
Authors: Amri Khairul , Nazir Alwis , Haerani Elin , Affandes Muhammad , Candra Reski Mai , Akhyar Amany
Published: December 2022

Abstrak - Tracer study adalah sebuah pendekatan yang diterapkan universitas untuk memperoleh informasi tentang kemungkinan kelemahan dalam proses pendidikan dan proses pembelajaran yang menjadi dasar perencanaan aktivitas untuk penyempurnaan di masa mendatang. Pada Universitas Islam Negeri Sultan Syarif Kasim Riau belum pernah ada tracer study yang komprehensif dan terstruktur dalam ruang lingkup universitas. Tracer study yang dilakukan hanya dalam lingkup program studi dan hanya dilaksanakan menjelang proses akreditasi prodi. Tidak ada tracer study yang rutin dilakukan di tingkat program studi dan universitas setiap tahunnya. Pada penelitian ini akan berfokus kepada penerapan data mining untuk mencari pola asosiasi pada data tracer study menggunakan Equivalence Class Transformation (ECLAT). Dari hasil penelitian terdapat 4 pola yang memenuhi support 13% dan confidence 80% dengan pengujian lift rasio 1. Pola tersebut diantaranya Jika ipk antara 3 – 3,5 dan gaji pertama dibawah 3 juta dan laki-laki maka status kelulusan tidak tepat waktu dan “masa tunggu mendapatkan pekerjaan pertama kurang dari 6 bulan” dengan support 17% dan confidence 84%. Jika ipk antara 3 – 3,5 dan perempuan maka “masa tunggu mendapatkan pekerjaan pertama kurang dari 6 bulan” dan hubungan pekerjaan dengan jurusan sesuai dengan support 14 % dan confidence 100%.Kata kunci: Tracer Study, Data Mining, Asosiasi, Equivalence Class Transformation, Eclat Abstract - Tracer study is an approach applied by universities to obtain important information in the education and learning process which is the basis for planning activities for future improvement. At UIN SUSKA University there has never been a comprehensive and structured tracer study within the scope of the university. There is no routine tracer study conducted at the study program and university level every year. This research will focus on the application of data mining to find association rules in tracer study data using ECLAT. From the research results, there are 4 patterns that meet the support of 13% and 80% confidence with a lift ratio test 1. The patterns include If the ipk is between 3 - 3.5 and the first salary is below 3 million and male then the graduation status is not on time and the waiting period to get the first job is less than 6 months with 17% support and 84% confidence. If the ipk is between 3 - 3.5 and female, then the waiting period to get the first job is less than 6 months and the job relationship with the major is in accordance with the support of 14% and confidence 100%.Keywords: Tracer Study, Data Mining, Asosiasi, Equivalence Class Transformation, Eclat