bluuebunny/crossref_metadata_2025 huggingface dataset:
Construction of a Polarizable Force Field for Molecular Dynamics Simulation of a NaOTF Water-In-Salt Electrolyte
Authors: Rezaei Majid , Sakong Sung , Gross Axel
Published: February 2023

To model a NaOTF Water-in-Salt (WiS) electrolyte using classical Molecular Dynamics (MD) simulations, we explore various force fields where atomic polarization is accounted for at three different levels: a non-polarizable all-atom force field where polarization is only implicitly included in its Van der Waals interaction parameters, the same force field with uniformly scaled ionic charges mimicing electron polarization within a mean-field approximation, and an explicit polarizable force field where polarization is modeled via Drude oscillators. We also probe combining different polarization levels for salt ions and water: when ion polarization is described by the Drude method, water is modeled by either the non-polarizable SPC/E model or the polarizable SWM4-NDP model. The main goal is to achieve simulation stability for different force fields and investigate the influence of the force field parameters on the electrolyte properties. Force field parameters that adjust the interactions of cations or Drude pairs are found to significantly affect the electrolyte structure and its dynamic properties. This effect is primarily due to the strong dependence of the degree of salt dissociation on these parameters. Among the force fields studied in this work, we identify an efficient combination of the Drude polarizable force field with non-polarizable water models, which is sufficiently flexible to reproduce various properties of WiS solutions, while the computational cost is affordable and simulation stability is ensured over a relatively wide range of force field parameters.
Intermolecular Enantioselective Benzylic C(sp3)-H Amination via Cationic Copper Catalysis
Authors: Dai Ling , Chen Ying-Ying , Xiao Li-Jun , Zhou Qi-Lin
Published: February 2023

Chiral benzylic amines are privileged motifs in pharmacologically active molecules. Intramolecular enantioselective radical C(sp3)H functionalization by a hydrogen-atom transfer (HAT) process has emerged as a straightforward and powerful tool for the synthesis of chiral amines, while intermolecular enantioselective C(sp3)H amination remains elusive. In this article, we report a cationic copper catalytic system for intermolecular enantioselective benzylic C(sp3)H amination with peroxide as oxidant. This mild yet straightforward method transforms an array of feedstock alkylarenes and amides into chiral amines with high enantioselectivities. The protocol has good functional group tolerance and broad substrate scope. More importantly, the method can be applied to synthesizing bioactive molecules and chiral drugs. Preliminary mechanistic studies indicate that benzylic radicals resulting from the HAT process are involved in the amination reaction.
Unexpected Discovery of Saturated Pyridine Mimetics
Authors: Dibchak Dmitry , Snisarenko Mariya , Mishuk Artem , Shablykin Oleg , Bortnichuk Lina , Klymenko-Ulianov Oleksii , Kheylik Yurii , Sadkova Iryna , Rzepa Henry , Mykhailiuk Pavel
Published: February 2023

A general approach to 3-azabicyclo[3.1.1]heptanes was unexpectedly discovered. The mechanism, scope, and scalability of this method were studied. The core was incorporated into the structure of the antihistamine drug Rupatidine instead of the pyridine ring, which led to a dramatic improvement in physicochemical properties.
Determination of the Dissociation Constant for Polyvalent Receptors using ELISA: a Case of M13 Phages Displaying Troponin T-specific Peptides
Authors: Machera Sebastian Jan , Niedziolka-Jonsson Joanna , Jonsson-Niedziolka Martin , Szot-Karpińska Katarzyna
Published: February 2023

Phage-derived affinity peptides have become widespread thanks to their easy selection via phage display. Interactions between a target protein and its specific peptide are similar to those between antibodies and antigens. The strength of these non-covalent complexes may be described by the dissociation constant (Kd). In this paper, protein-specific peptides are exposed on the pIII protein present in the M13 bacteriophage virion with up to 5 copies. Therefore, one phage particle can bind from one to five ligands. Here, we discuss the dependences between phage-displayed peptides and their ligands in solution using a model system based on troponin T (TnT) binding phages. Moreover, a method of calculating Kd values from ELISA experiments was developed and presented. Determined Kd values are in the picomolar range.
The chemical library space and its application to DNA-Encoded Libraries
Authors: Pikalyova Regina , Zabolotna Yuliana , Horvath Dragos , Marcou Gilles , Varnek Alexandre
Published: February 2023

The development of DNA-Encoded Library (DEL) technology introduced new challenges for the analysis of chemical libraries. Unlike classical HTS libraries, the DEL composition cannot be modified once synthesized and, therefore, it must be considered as a stand-alone chemoinformatic object represented both as a collection of independent molecules, and yet an individual entity. For the analysis of such collections, the concept of the Chemical Library Space (CLS) where entire libraries become objects is indispensable. In this article, we introduce, analyze and compare four vectorial library representations obtained using Generative Topographic Mapping (GTM), formally defining CLS. Such representations allow effective comparison of libraries, with the ability to tune and chemically interpret the similarity relationships. In particular, property-tuned CLS encodings enable to simultaneously compare libraries with respect to both property and chemotype distribution. We apply the various CLS encodings for the selection problem of DELs that optimally match a reference collection (here ChEMBL28), showing how the choice of the CLS descriptors may help to fine-tune the matching (overlap) criteria. The proposed CLS encodings are a new efficient way for polyvalent analysis of the space of thousands of chemical libraries.
The role of organizational virtuousness in achieving organizational prosperity An exploratory study of the opinions of a sample Academic Staff at the University of Zakho
Authors: Mustafa Khawla , Amin Hinar
Published: February 2023

This study aims to know the role of organizational virtuousness in achieving organizational prosperity at the University of Zakho, and the study was adopted on the descriptive-analytical approach, and a set of main and secondary hypotheses were adopted that tested in the (7) faculties of Zakho University, A number of questions were set and answered by (156) faculty members and for the purposes of data collection, the questionnaire was designed as a main tool in collecting data related to the field aspects. The data was analyzed by adopting a set of statistical methods using the (SPSS.v.26) program, to analyze the correlation and impact of the aspects of the study variables. The study reached a set of conclusions, the most important of which is the existence of a moral correlation and impact between organizational virtuousness and organizational prosperity. which it possesses and its competencies to face competition and the conditions of the surrounding environment, as well as the need for the researched colleges to adopt the variables of the current study and its dimensions to achieve organizational prosperity and according to the model adopted by the study
Jogállam – cselekvő állam
Authors: Szabadfalvi József
Published: February 2023

Magyary Zoltán a modern közigazgatás-tudomány és államelmélet nemzetközileg is ismert gondolkodója alapvetőnek tekintette a jogállamiság értékeit, de fellépett a jogi formalizmus okozta anomáliákkal szemben. Fontosnak tartotta védeni az alapvető jogokat, így a közigazgatási határozatok teljeskörű bírósági felülvizsgálatát szorgalmazta. Ugyanakkor prioritás volt számára a közigazgatás, végső soron a végrehajtó hatalom hatékony és eredményes működése. A jogállamiság kritériumai és a hatékony, eredményes működés érintkezési pontjait műveiben nem tisztázta teljes körűen, így az utókor számára különböző interpretációs lehetőségek adódnak szemléletmódja feltárása során.
pszichológiai szerződés elméletének egyes munkajogi kapcsolódási pontjai
Authors: Tóth Kristóf
Published: February 2023

A tanulmány célja a pszichológiai szerződés, mint elméleti koncepció központi témáinak bemutatása, a releváns munkajogi összefüggésekre fókuszálva. Az alkalmazott fő kutatási módszer a témában született releváns tanulmányok, cikkek, monográfiák vizsgálata, ezek szerzői által rendszerezett empirikus kutatási adatok másodelemzése, valamint ennek során a főbb munkajogi vonatkozások és összefüggések feltárása. A munkaszerződés és a pszichológiai szerződés viszonyát vizsgálva megállapítható, hogy míg az előbbi egy írásos formában létező, jogi kötőerővel rendelkező szerződés, addig az utóbbi egy elméleti, absztrakt konstrukció, amely a felek kölcsönös és hallgatólagos elvárásait tartalmazza. Ebből adódóan tehát „jogon túli” kategóriának minősül, bizonyos esetekben azonban, főként annak megsértése esetén lehetnek jogi relevanciái.
köztulajdonban álló gazdálkodó szervezetek adatainak közzététele Németországban és Magyagyarországon
Authors: De Negri Laura
Published: February 2023

A cikk összehasonlító jelleggel elemzi, hogy Németországban, illetve Magyarországon miként valósul meg a köztulajdonban álló gazdálkodó szervezetek adatainak közzététele. Vizsgálat tárgyát képezi továbbá, hogy az állami vagyonnal való gazdálkodás transzparenciája miként egyeztethető össze a piaci működéssel és az üzleti titkok megóvásával. A cikk különös figyelmet szentel azon kérdés megválaszolásának, hogy a közérdekű adatigénylés és az üzleti titok milyen viszonyban állnak egymással, illetve, hogy amennyiben üzleti titok sérelmének veszélye áll fenn, megtagadható-e az adatok nyilvánosságra hozatala. Tekintettel arra, hogy a közérdekű adatok közzététele és azok megismerhetősége az információszabadsággal elválaszthatatlan viszonyban áll, az elemzés tárgyát képező országok információszabadságról szóló törvényei is bemutatásra kerülnek. A cikk rávilágít a német jogrendszer példaértékű megoldásaira, végezetül pedig összehasonlító jelleggel kitér a két jogrendszer szabályozási koncepcióiban fellelhető hasonlóságokra és különbségekre.
autonóm járművek nemzetközi közjogi szabályozása, különös tekintettel a nemzetközi közlekedés témakörére
Authors: Takó Dalma
Published: February 2023

Jelen tanulmány a nemzetközi közjog – ezen belül is elsődlegesen a nemzetközi közlekedés – szempontjából vizsgálja az autonóm járművek szabályozásának kérdését. Ennek keretében meghatározza az autonóm, vagy más néven önvezető járművek fogalmát, feltárja az autonóm járművek és a nemzetközi közjog kapcsolatát, ismerteti a nemzetközi közlekedés területén a szabályozás irányába mutató, eddig elért eredményeket, valamint elemzi a jövőbeli szabályozási lehetőségeket. Ez utóbbi kérdéskör vizsgálatát a tanulmány a nemzetközi szerződésekre szűkíti, s arra a kérdésre keresi a választ, hogy vajon szükséges és lehetséges-e az önvezető járművek nemzetközi szerződésben történő szabályozása.
An analytical appraisal of major issues and challenges in kudumbhashree women micro-enterprises of thiruvanthapuram corporation
Authors: Lekha T N  , Thiagarajan M
Published: February 2023

“ Like charity begins at home, we have to start making a change from our house and society. We need to work together to make this world a better place for women”. India’s development planning has always aimed at removing inequalities in the development process. Due to several socio-economic, political and cultural factors women lag backward is recognized. Five year plans always focuses on women’s welfare, education and their accessibility to nations resources and their empowerment.A nation like India, structured as a social democratic republic have the ultimate aim of equitable distribution of economic resources for eradicating regional, social, economic and gender disparities for a sustainable economic development and gender equality. Poverty alleviation is one of the major challenges in the development of the developing countries like India. The problem of poverty can be solved effectively by providing sustainable livelihood opportunities especially to the women community. Women have identified as carrying the ultimate burden of poverty and apparently this seemed to be the reason why they have been put in the limelight of development scenario.
Managing learning environment in schools for improved quality education in the post-covid 19 era
Authors: Eme Joseph  , Princewill Egwuasi
Published: February 2023

Any education that is not qualitative enough would impose more danger to the learners and the society at large. This paper examined managing the learning environment in schools for improved quality education. The secondary school was the focus while the principals were the target. The presentation of the meaning of learning environment and quality education was captured. The paper also explained who the principal is and his responsibilities concerning the educational managerial conception. The paper looked at the various components of the learning environment and how they could be managed to produce an acceptable learning environment and its implication in the post-COVID 19 eras. In the end, the paper concluded, among other things, that it is only when the principals are innovative, creative, and proactive with their understanding of the learning environment that the so desired quality education be achieved.
Mapping edo state university’s undergraduates’ awareness and usage of the new media
Authors: Obinna Johnkennedy Chukwu  , Ata Awaji Anthony Reuben
Published: February 2023

The study was carried out to map Edo State University undergraduates’ awareness and usage of the new media. The study was predicated on one theory - Technology Acceptance Model (TAM). The objectives, among other things, were to ascertain the extent of awareness and usage of new media in Edo State University; and the constraints they (undergraduate students) encounter, in respect to the usage of the media. Survey was adopted as the study design,while questionnaire was used to elicit information from 210 undergraduate students. Findings showed that the extent of awareness and usage of new media in Edo State University is high. The findings indicate also, amongst others, that the undergraduate students of the Institution did not encounter challenges in respect to usage of the new media. Based on the forgoing, it was recommended, amongst others, that the use of new media in pedagogy be introduced in schools, particularly, tertiary institutions in Nigeria, given the effectiveness of the use new media for teaching and learning in Edo State University, Uzairue, Nigeria. Further, efforts should be geared toward training undergraduate students on how to utilise new media for educational purposes.
Features of kinetics and mechanism of Ni(II) ion electroreduction in the course of electrodeposition of nickel and Ni–TiO2 composites from a deep eutectic solvent
Authors: Protsenko Vyacheslav , Bogdanov Dmytro , Butyrina Tetyana , Danilov Felix
Published: February 2023

Kinetic characteristics of the nickel ion discharge were investigated for the first time from electrolytes based on a new kind of ionic liquids, deep eutectic solvents. The study was carried out using electrolytes based on ethaline, a liquid eutectic mixture of choline chloride choline and ethylene glycol in a molar ratio of 1:2, respectively, in which 1 М NiCl2·6H2O was dissolved. It was shown that the apparent transfer coefficients for electrochemical process in the system Ni(II)/Ni(0) in ethaline were equal to α=0.309 and β=0.255 for anodic and cathodic reactions, respec-tively. It is difficult to interpret these values in the framework of known criteria of consecutive electrochemical pro-cesses. In order to explain this phenomenon, a theoretical conception was used, that was earlier developed by Gileadi. According to that conception, electric charge during metal electrodeposition is transferred through the electrode interface by metal ions, but not by electrons. Therefore, potential barrier in a double electrical layer be-came very asymmetric (i.e. the apparent transfer coefficient deviates from 0.5). It was found that the introduction of TiO2 particles (0–10 g dm–3) into the electrolyte based on ethaline results in declaration of electrochemical re-duction of nickel (II) ions due to a partial blocking of the electrode surface by adsorbed colloidal particles of titani-um dioxide.
Transmittance of electronic effects in the fluorescein molecule: nitro and amino groups in the phthalic acid residue
Authors: Moskaeva Elena , Ostrovskiy Kirill , Shekhovtsov Sergey , Mchedlov-Petrossyan Nikolay
Published: February 2023

This paper is aimed to estimate the transmittance of the electronic effects in the fluorescein molecule between the phthalic acid residue and the xanthene moiety. Despite the almost orthogonal orientation of the latter with respect to the rest of the molecule, some influence of substituents in this 9-aryl ring on the dissociation of the hydroxyl group of the hydroxyxanthene cannot be ruled out. In order to reveal this (possible) effect, we blocked the carboxylic group via esterification. The reason of using dimethyl sulfoxide as solvent was the high Hammett’s “rho” constant for phenolic group. The pKa values of eight methyl or ethyl esters of 3'-, 4'-, and 5'-nitro and amino fluoresceins were determined in benzoate and salicylate buffer solutions using the spectrophotometric method. For nitro derivatives, the dissociation constants of the cationic forms of the dyes were also determined in diluted
p-toluenesulfonic acid. The study reveals increasing in the pKa by 0.2–0.3 units in the case of amino derivatives, while the nitro group decreases the pKas by 0.2–0.8. Also, the position of the substituent is of importance; the 5'-substituents display the least influence. In addition, the pKa values of methyl and ethyl esters of eosin (2,4,5,7-tetrabromofluorescein) were determined in order to clarify the influence of the alkyl group. The absorption maxima and molar absorptivities of the anions, as well as the pKas in DMSO coincide within the margin of errors.
Analisis Skema Mencetak Gol Timnas Senior Indonesia Di Piala AFF Tahun 2020
Authors: Nurhasan Muhammad Zufar Fikri , Bawono Mokhamad Nur , Roepajadi Joesoef , Sulistyarto Soni
Published: February 2023

Latar Belakang: Seiring waktu tujuan permainan sepak bola berkembang dari yang semula hanya untuk tujuan rekreasi dan mengisi waktu luang menjadi olahraga yang bersaing di ajang prestasi. Sepakbola adalah permainan beregu yang dimainkan masing-masing oleh sebelas orang pemain termasuk seorang penjaga gawang yang bertujuan untuk memasukkan bola ke gawang lawan dan menjaga pertahanan gawang sendiri. Karena setiap gol mempunyai taktik dan skema masing-masing, maka pada penelitian ini memiliki tujuan untuk menganalisis skema mencetak gol dan peluang terjadinya gol melalui proses (heading, shooting, dan sentuhan) dari tim nasional senior Indonesia di Piala AFF tahun 2020.
Metode: Penelitian ini menggunakan mixed metode yaitu dengan pendekatan kuantitatif dan kualitatif.
Hasil: Dan dihasilkan bahwa analisis gol untuk skema satu melakukan kerja sama 2 pemain yaitu pemain A dan B, lalu proses terjadinya gol melalui bagian tengah atau posisi kotak penalti lawan dan terjadinya gol diciptakan oleh pemain posisi B. Skema dua melakukan kerja sama 5 pemain yaitu pemain A, B, C, D, dan E, terjadinya gol melalui bagian tengah kotak penalti lawan dan diciptakan dari pemain posisi A. Skema tiga melakukan kerja sama 3 pemain yaitu pemain A, B, dan C, gol tersebut terjadi di 12 meter sisi kiri penyerangan atau di sisi pertahanan sebelah kiri lawan, dan gol tersebut diciptakan dari pemain posisi C.
Kesimpulan: Terdapat tiga skema penyerangan yang dapat mencetak gol pada piala AFF tahun 2020 yaitu kerjasama dua anggota, kerjasama lima anggota dan kerjasama tiga anggota.
Analisis Standar Minimal Standing Board Jump Untuk Seleksi Atlet Bolavoli Putra Usia 17-21 Tahun
Authors: Murdiyanto Fahmi Miftahul , Widodo Achmad , Sulistyarto Soni
Published: February 2023

Latar Belakang: Dalam penelitian adapun ruang lingkup dan tujuan untuk mengetahui besaran kekuatan otot tungki atlet bolavoli, besaran nilai otot tungkai atlet tim nasional, mengetahui skala ukuran standar yang digunakan untuk melakukan seleksi atlet bolavoli putra yang akan bertanding usia 17-21 tahun.
Metode: Penelitian ini menggunakan metode deskriptif kuantitatif yang pelaksanannya memakai tes standing board jump tanpa awalan serta subjek 23 atlet bolavoli Kabupaten Gresik.
Hasil: Diperoleh bahwa calon atlet bolavoli yang terpilih harus memiliki minimal nilai explosive power atau daya ledak otot tungkai yang diukur dengan standing board jump test = 2,35 m dan memiliki tinggi badan = 1,88 m serta masih berusia minimal 17 tahun dan maksimal 21 tahun, maka pemain tersebut termasuk calon pemain bolavoli yang ideal. Dengan memiliki komposisi nilai explosive power atau daya ledak otot tungkai yang diukur dengan standing board jump test = 2,35 m dan memiliki tinggi badan = 1,88 m, maka calon pemain tersebut diharapkan juga akan memiliki tinggi raihan seperti pemain bolavoli yang tergabung dalam Tim Nasional Indonesia yang memenangkan medali emas pada Sea Games di Vietnam tahun 2021, yaitu = 3,32 m, sehingga akan mampu melakukan teknik smash dan blok yg terbaik. Selanjutnya dengan usia tersebut masih mampu mencapai penampilan terbaiknya di usia emas kurang lebih di usia 25 tahun.
Kesimpulan: Mengetahui bahwa atlet yang dapat dimasukkan dalam jajaran pemain inti merupakan hasil dari seleksi dengan standar yang dapat di pertanggung jawabkan berdasarkan data yang ada sehingga pemain diharapkan dapat menjuarai liga yang akan diikuti.
Implementasi Telemetri dan Evaluasi Performansi Sistem Komunikasi Lora di Daerah Pesisir Pantai
Authors: PUSPITORINI OKKIE , MAHMUDAH HANIAH , WIJAYANTI ARI , SISWANDARI NUR ADI
Published: February 2023

ABSTRAKSistem komunikasi dikembangkan untuk peningkatan ekonomi nelayan. Penelitian yang dikembangkan sistem komunikasi antar nelayan dengan pesisir pantai dengan biaya murah serta mempunyai jangkauan jarak yang terbatas. Untuk mengatasi jarak jangkauan jauh maka pada penelitian ini mengimplementasikan sistem komunikasi Lora multihop menggunakan telemetri dengan daya transmisi 24 dBm atau 250 mW. Sistem ini terdiri blok end device berupa telemetri berada pada kapal nelayan, blok gateway pada pinggir pantai, dan blok server application pada end user serta tampilan berupa website nelayan. Hasil pengujian telemetri sebagai transceiver dengan komunikasi multihop mampu digunakan untuk pengiriman data menghasilkan daerah jangkauan 7,2 km menjauhi pantai. Telemetri mengirimkan data ke gateway di pantai kemudian data diteruskan ke server cloud sebagai database. Perancangan database menggunakan model data relasional dan pengolahan data menggunakan algoritma FIFO. Hasil pengujian performansi sistem pada pengujian aplikasi front-end dan back-end menunjukan bahwa performansi sistem mampu menangani permintaan user secara cepat. Kata kunci: Telemetri, Lora, Multihop, Aplikasi, Pesisir Pantai ABSTRACTCommunication system was created to boost economic of fishing industry. Research created an inexpensive distance-restricted communication system for fishermen and coast. This study uses telemetry with transmission strength of 24 dBm or 250 mW to create multihop Lora communication in order to cross great distances. This system comprises of gateway block on coast, application server block on end user, display in form of fisherman's website, and end device block in form of telemetry on fishing boat. Using findings of testing telemetry as transceiver with multihop connection, coverage area of 7.2 km can be employed for data transfer. Data is transmitted from telemetry to coastal gateway and then sent to cloud server where it is stored as database. FIFO algorithm are used relational data modeling and data processing in database design. System's ability to handle user requests rapidly is demonstrated by results of front-end and backend application testing for system performance.Keywords: Telemetri, Lora, Multihop, Application, Coast
Estimasi Jarak pada Sistem Koordinat Berbasis Metode Haversine menggunakan Tapis Kalman
Authors: SETIADI BUDI , SOLIHIN RIDWAN , SUPRIYADI TATA , TOHIR TOTO , SUDRAJAT SUDRAJAT
Published: February 2023

ABSTRAKKesalahan GPS (Global Positioning System) dalam menentukan titik koordinat dipengaruhi faktor terhalang oleh bangunan, kondisi cuaca, dan hal lain yang dapat mengurangi akurasi dari GPS. Penelitian ini, digunakan tapis Kalman untuk meminimalisir kesalahan pada alat GPS tipe BN-220 ketika menentukan jarak. Tapis Kalman dirancang dengan dua tahapan yaitu proses prediksi dan koreksi. Pada tahap prediksi, data mentah dari koordinat akan diihitung varian kesalahannya dengan mengatur matriks Q. Kemudian, pada tahap koreksi dilakukan perbaikan dengan menentukan penguatan Kalman berdasarkan matriks R dan hasilnya digunakan untuk mengestimasi data keluaran. Berdasarkan pengujian pada delapan titik uji, diperoleh bahwa penggunaan tapis Kalman menghasilkan rata-rata selisih kesalahan sekitar 5,27% terhadap Google Maps jika dibandingkan dengan tanpa tapis Kalman sebesar 7,56%.Kata kunci: GPS BN-220, tapis Kalman, Haversine, Google Maps ABSTRACTGPS (Global Positioning System) error in determining the coordinates is influenced by factors obstructed by buildings, weather conditions, and other things that can reduce the accuracy of GPS. In this study, the Kalman filter was used to minimize errors in the BN-220 type GPS device when determining the distance. Kalman filter is designed with two stages, namely the prediction and correction process. In the prediction stage, the raw data from the coordinates will be calculated for the error variance by adjusting the Q matrix. Then, in the correction stage, improvements are made by determining the Kalman gain based on the R matrix and the results are used to estimate the output data. Based on testing at eight test points, it was found that the use of the Kalman filter resulted in an average error difference of around 5.27% against Google Maps when compared to without the Kalman filter of 7.56%.Keywords: GPS BN-220, Kalman filter, Haversine, Google Maps
Pengaruh Nilai PIR dan Penggantian Elemen Resistor dengan DISP Aluminium terhadap GCB 420 KV
Authors: ADISTIA NURUL AMANDHA , SIMATUPANG JONI WELMAN , TAMPUBOLON MAROJAHAN , SAMSURI FAISAL
Published: February 2023

ABSTRAKPenggunaan PIR pada GCB single phase dirancang sesuai klasifikasi kelas tegangannya, maka nilai PIR didesain berdasarkan desain GCB. Studi kasus yang dilakukan di PT XYZ yaitu nilai PIR di luar batas toleransi. Tujuan studi kasus ini untuk mengetahui pengaruh PIR terhadap GCB dengan nilai PIR yang tidak memenuhi kriteria, mengetahui elemen resistor diganti DISP dapat dijadikan solusi alternatif yang tepat, dan mengetahui nilai PIR dapat bertambah sehingga melebihi batas toleransi. Pengaruh nilai PIR sesuai kriteria dan melebihi kriteria memiliki perbedaan nilai berdasarkan simulasi PSCAD yaitu arus puncak dengan nilai PIR 417 Ω sebesar 1.1782kA, sedangkan nilai PIR 425 Ω sebesar 1.1589kA saat switch PIR menutup (0.0801s). Penggunaan DISP dapat dijadikan alternatif untuk mengurangi nilai PIR. Nilai PIR yang melebihi kriteria dipengaruhi faktor proses powder metallurgy, pemasangan, dan pengukuran PIR.Kata kunci: Aplikasi PSCAD, DISP Aluminium, GCB, PIR, dan Powder Metallurgy ABSTRACTThe utilization of PIR in the single phase GCB designed according to its voltage classification, therfore the value of PIR is related to the GCB design. A case study observed in XYZ company focused on the out of tolerance PIR value. The main purpose of this observation is to discover the out of criteria PIR value related to the behaviour of the GCB, to find out if the resistor element could be changed with DISP so that it is able to be an alternative solution, and also increase of the PIR value caused out of tolerance after being set. Based on PSCAD simulation, the effect of PIR value according to and out of criteria shown the different result in its peak current between 417Ω and 425Ω, those are 1.1782kA and 1.1589kA respectively when the PIR switch is closed (0.0801s). Utilization of DISP is mostlikely able to be an alternative to reduce the PIR value. The out of criteria PIR value can be influenced by an amount of factor, such as powder metallurgy process, installation, and measurement.Keywords: PSCAD Software, DISP Aluminium, GCB, PIR, and Powder Metallurgy
Rancang Bangun Prototipe Sistem Kontrol Tangki Air Otomatis Sederhana untuk Aplikasi Mesin Pencuci Komponen Industri
Authors: AFRISTANTO SASFITRA DECKY , DEWANDARU BAMBANG , SAMSURI FAISAL , SIMATUPANG JONI WELMAN , LIM RESMANA
Published: February 2023

ABSTRAKDalam industri manufaktur, salah satu persyaratan yang wajib dipenuhi sebelum barang dikirim ke pelanggan adalah kebersihan barang sebelum dibungkus. Metode yang paling banyak digunakan adalah dengan mencuci barang. Prototipe yang mesin pencuci otomatis yang dibuat pada perancangan menggunakan komponen standar industri seperti PLC, HMI, proximity sensor untuk mengukur level ketinggian air, katup solenoida, dan juga pompa air. Prototipe tersebut kemudian diuji durabilitas dan stabilitasnya. Uji durabilitas dilakukan dengan pengoperasian mesin hingga 1400 cycle tanpa masalah, sementara untuk uji stabilitas dilakukan dengan mengoperasikan mesin hingga 200 cycle tanpa fault yang diakibatkan oleh sensor LOW yang menandakan kehabisan air. Setelah melewati kriteria uji dengan hasil yang sesuai ekspektasi, diharapkan mesin ini mampu menjadi alternatif baru untuk mesin pencuci skala industri dengan beberapa pengembangan tambahan seperti diintegrasikan dengan IoT.Kata kunci: PLC, HMI, sensor proksimitas, level ketinggian air, durabilitas, stabilitas ABSTRACTIn the manufacturing industries, one of the mandatory requirements that should be fulfilled is the product's hygiene before packaging. The most commonly used method is to wash the goods. The automatic washer prototype constructed during this observation uses industry-standard components such as PLC, HMI, proximity sensor for measuring the water level, solenoid valve, and water pump. The prototype then is examined for its durability and stability. The durability test is done by a 1400 cycles trial without any problem, while the stability test is done by a 200 cycles trial without a fault triggered by a LOW sensor that indicates the lack of water. After passing the test criteria as expected, the prototype should be able to be a new alternative for industrial-scale washer machines, surely after some improvement such as being integrated with an IoT system.Keywords: PLC, HMI, proximity sensor, water level, durability, stability
Optimasi Teknologi Computer Vision pada Robot Industri Sebagai Pemindah Objek Berdasarkan Warna
Authors: MASRIL MUHAMMAD ABRAR , CANIAGO DEOSA PUTRA
Published: February 2023

ABSTRAKComputer vision merupakan teknologi yang dapat mendeteksi objek yang ada disekitarnya pada penelitian ini membahas optimasi teknologi computer vison pada robot sebagai pemindah objek berdasarkan warna. Sistem pada robot terdiri dari pengenalan bola berwarna dan memindahkan bola berwarna sesuai dengan warna yang dideteksi. Teknologi computer vision pada pixy 2 camera dapat mendeteksi objek berwarna menggunakan metode deteksi real-time dengan hasil optimasi yang tinggi yaitu 0,2 detik ketika mendeteksi objek berwarna. Pengujian pengenalan objek berwarna dilakukan sebanyak tiga kali pada setiap objek berwarna dengan tingkat akurasi sebesar 100%. Optimasi computer vision dapat membantu robot mengenali objek berwarna.Kata kunci: Computer Vision, Deteksi Objek Berwarna, Pixy2 Camera, Real-Time ABSTRACTComputer vision is a technology that can detect objects that are around it. This study discusses the optimization of computer vision technology on robots as object transfers based on color. The system on the robot consists of recognizing colored balls and moving colored balls according to the detected color. Computer vision technology on the pixy 2 camera can detect colored objects using a real-time detection method with a high optimization result of 0.2 seconds when detecting colored objects. The color object recognition test was carried out three times on each colored object with an accuracy rate of 100%. Computer vision optimization can help robots recognize colored objects.Keywords: Computer Vision, Color Object Detection, Pixy2 Camera, Real-Time
Kombinasi Deteksi Objek, Pengenalan Wajah dan Perilaku Anomali menggunakan State Machine untuk Kamera Pengawas
Authors: NURYASIN MUHAMMAD FAUZI , MACHBUB CARMADI , YULIANTI LENNI
Published: February 2023

ABSTRAKSaat ini sistem kamera pengawas mengandalkan manusia dalam melakukan penerjemahan pada rekaman gambar yang terjadi. Perkembangan computer vision, machine learning, dan pengolahan citra dapat dimanfaatkan untuk membantu peran manusia dalam melakukan pengawasan. Penelitian ini merancang sistem kerja kamera yang terdiri dari tiga modul yaitu deteksi objek, pengenalan wajah, dan perilaku anomali. Deteksi objek memakai HOG-SVM, pengenalan wajah menggunakan CNN dengan arsitektur VGG-16 memanfaatkan transfer learning, dan perilaku anomali memakai spatiotemporal autoencoder berdasarkan threshold. Ketiga modul tersebut diuji menggunakan metrik akurasi, presisi, recall, dan f1-score. Ketiga modul diintegrasikan dengan state machine menjadi satu kesatuan sistem. Kinerja modul memiliki akurasi 88% untuk deteksi objek, 98% untuk pengenalan wajah, dan 78% untuk perilaku anomali. Hasil tampilan riil dapat diakses secara sederhana dan nirkabel melalui web.Kata kunci: HOG-SVM, CNN, VGG-16, spatiotemporal autoencoder, state machineABSTRACTNowadays, the surveillance camera system relies on human to interpret the recorded images. Computer vision, machine learning, and image processing can be utilized to assist the human role in supervising. This study designed a camera work system consisting of three main modules, namely object detection, face recognition, and anomaly behavior. Object detection used the HOG-SVM combination. Facial recognition used CNN with the VGG-16 architecture that utilized transfer learning. Anomalous behavior used spatiotemporal autoencoder based on threshold. Modules are tested using the metrics of accuracy, precision, recall, and f1-score. The three modules are integrated using a state machine into one system. The performance of the module had 88% accuracy for object detection, 98% for facial recognition, and 78% for anomalous behavior. Real time video recording can be accessed wireless via web-based.Keywords: HOG-SVM, CNN, VGG-16, spatiotemporal autoencoder, state machine
PERBANDINGAN IMPLEMENTASI ALGORITMA K-MEANS++ DAN FUZZY C-MEANS PADA SEGMENTASI CITRA WAJAH
Authors: Nuraeni Fitri , Susilawati Helfy , Handoko Agustin Yoga
Published: February 2023

Dalam pengenalan wajah menggunakan metode pengolahan citra, dibutuhkan proses segmentasi citra agar dapat dilakukan proses analisis citra selanjutnya. Segmentasi citra dapat dilakukan dengan metode clustering yang memiliki beberapa algoritma berbasis centroid, seperti k-means dan fuzzy c-means. Algoritma k-means sendiri memiliki beberapa varian, salah satunya k-means++ dimana varian ini lebih cerdas dalam memilih inisial centroid dibanding k-means yang memilih inisial centroid secara acak. Algoritma fuzzy cmeans sendiri telah memiliki keunggulan dalam  engelompokan objek yang tersebar secara tidak teratur. Untuk mendapatkan segmentasi yang baik untuk pengenalan wajah, perlu dicari algoritma mana yang dapat menghasilkan segmentasi citra dengan kualitas baik. Sehingga pada penelitian ini, dilakukan penelitian ekspresimen dengan menggunakan citra wajah yang disegmentasi dengan algoritma k-means++ dan fuzzy c-means, kemudian dilakukan evaluasi menggunakan RSME, PSNR dan SSIM. Dari penelitian ini dihasilkan segmentasi citra dengan fuzzy c-means lebih baik dibandingkan hasil k-means++ berdasarkan nilai RSME, PSNR dan SSIM
RANCANGAN DAN IMPLEMENTASI APLIKASI MENTORING MENGGUNAKAN FRAMEWORK LARAVEL
Authors: Saputra Arrio , Nugroho Muhammad Agung , Astuti Femi Dwi , Kriestanto Danny
Published: February 2023

Program Magang dan Studi Independen Bersertifikat (MSIB) di Yayasan Hasnur Centre mengharuskan mentor menulis laporan kegiatan mentoring, Pada platform website kampus merdeka mitra/PIC/HR hanya dapat melihat laporan harian maupun mingguan dari para mahasiswa magang dan laporan mentor tidak dapat dilihat oleh mitra/PIC/HR sebagai pemegang akun mitra. Sehingga pada penelitian ini membuat website mentoring platform yang mana website ini akan digunakan untuk mencatat atau menuliskan kegiatan mentoring Yayasan Hasnur Centre  Quality Internship Program (YHC QuIP) kampus merdeka yang dilakukan oleh mentor setiap hari kerja serta melampirkan dokumentasinya. Mentoring platform ini mentor dapat menuliskan kegiatan mentoring yang hanya bisa dibuat satu kali sehari akan tetapi jika mentor lupa menuliskan kegiatan mentoring pada hari itu maka akan dibuat otomatis oleh sistem, akan tetapi kegiatan mentoring hanya dapat diedit atau diubah selama dua hari sebelumnya dan kegiatan mentoring hanya dapat dihapus pada hari itu juga. Aplikasi Mentoring platform mempermudah mentor dalam menulis aktivitas/laporan/jurnal serta mempermudah HR/mitra sebagai admin untuk melihat seluruh laporan para mentor karena data yang disimpan sudah terpusat
IMPLEMENTASI METODE ANALYSIS GOMS PADA USER INTERFACE DAN USER EXPERIENCE APLIKASI GOJEK DAN GRAB
Authors: Marwanta Y.Yohakim , Badiyanto Badiyanto , Irianto Okky
Published: February 2023

Metode analisis GOMS (goals, operators, methods, dan selection rules) adalah metode untuk menganalisissuatu tugas (task) yang dikembangkan oleh Stuart Card, Thomas P., Moran and Allen Newell. Didalam me-tode GOMS, Goals berarti tujuan yang ingin dicapai oleh pengguna, operators berarti tindakan dasar yangharus dilakukan pengguna di dalam menggunakan sistem, methods berarti cara-cara yang dapat dilakukanuntuk mencapai tujuan dengan menggunakan operators yang ada, dan selection rules berarti pilihan metodeyang digunakan. Aplikasi Grab dan Gojek adalah salah satu aplikasi yang bergerak dibidang transportasi,makanan dan jasa (kurir). Penelitian ini mencoba mencari tahu segi kecepatan dan efisiensi antara aplikasiGojek dan Grab menggunakan metode GOMS Analisis dengan Teknik KLM (Keystroke Level Model) yangdiujikan kepada 3 aspek dari kedua aplikasi yaitu Goride, Gocar, Gofood pada aplikasi Gojek dan GrabBike,GrabCar, GrabFood pada aplikasi Grab. Tujuannya adalah untuk mengetahui manakah yang lebih cepatdan efisien antara kedua aplikasi tersebut dalam pemesanan layanan kendaraan dan makanan. Hasil da-ri penelitian ini adalah sebuah kesimpulan mengenai 3 aspek yang telah diteliti sebelumnya dalam bentuksebuah tabel pengamatan yang dapat digunakan oleh perusahaan sebagai pertimbangan dalam melakukanpengembangan aplikasi di kemudian hari.
PROFESSIONAL TRAINING OF SPECIALISTS IN THE ECONOMIC SPHERE: GAPS IN THE RESEARCH FIELD
Authors: Sysoiev Oleksii
Published: February 2023

The article carries out a theoretical analysis of modern researches related to the professional training of specialists in the economic field with the aim of identifying gaps in the research field of the identified problem – professional training of specialists in the circular economy. On the basis of the results of the theoretical analysis of scientific studies of the training of economists in Ukraine, we will summarize the problems of these works. The problem can be divided into 4 blocks of topics, each of which has its own subtopics: Formation of professional competencies of future economists – 1) formation of abilities and skills; 2) formation of professional competences by various means. Organizational and methodical (pedagogical) principles – 1) organizational and pedagogical principles; 2) didactic or pedagogical conditions; 3) theoretical and methodological aspects; 4) method of development of professional qualities. Training of future economists in Ukraine – 1) training of a certain category of economists; 2) preparation for a certain type of activity; 2) means of improving the quality of professional training; 3) use of ICT in the professional activities of economists; 5) distance learning. means of improving the quality of professional training. Foreign experience of training future economists – the Republic of Poland, Germany, Great Britain and the USA. It is shown that the foreign experience of training specialists in the economic field in the context of modern requirements of the global economic space and the emergence of new economic specialties is not studied enough. This applies, in particular, to the professional training of specialists in the circular economy, who should play an important role in the post-war reconstruction of Ukraine.
SCIENTIFIC RESEARCH PRACTICE IN EDUCATIONAL PROGRAMS FOR THE TRAINING OF MASTERS OF PHILOLOGY
Authors: Prozhohina Iryna
Published: February 2023

Research practice as a component of the educational programs of the specialty «Philology» at the master's degree in higher education is analyzed, namely its place in the system of specialists' research skills formation. Descriptions of 80 educational programs for the preparation of masters in philology, introduced in 2019-2022 in six universities of Ukraine, were analyzed, particularly the presence of practice(s), which correlates with the defined purpose of these programs from the point of view of the masters' scientific and research skills formation. It was found that some educational programs don't include this kind of practice. The existing practices have various names not only in different universities but also in the same one; some of the names do not reflect the essence of this practice as scientific and research (production, pre-diploma, etc.). It has been proved that research practice should be a compulsory component of the master's educational programs in philology. The purpose of such practice should be subordinated to the broader task of forming the research competence of the philologist, taking into account the professional suitability of the future specialist, which is not limited to teaching philological disciplines in secondary or higher education. The content of the philological master's practice should be consistent both with the standard of higher education in philology for obtaining the master's degree and with the description of a specific educational program. The volume in ECTS credits (in some programs also the duration) of practice(s) has been clarified. It is suggested to conduct this practice in the middle of the curriculum – for educational and scientific programs at the end of the second semester or after it; so that the practice becomes a connecting link between the studied theoretical courses and future independent research, especially a master's thesis.
PROFESSIONAL DEVELOPMENT OF A FOREIGN LANGUAGE TEACHER AT UNIVERSITY: COMPETENCE AND CREATIVITY ASPECTS
Authors: Durdas Alla
Published: February 2023

The article deals with the issues of development of foreign language teachers’ competences and creativity at university. The necessity to constantly develop professional competences of a foreign language teacher has been substantiated; the lack of research on a foreign language teacher’s creativity in scientific literature has been stressed. The connection of creative teaching with emotions has been revealed. Emotions at foreign language lessons have been specified as a factor affecting students’ academic outcomes, interest, commitment and personality development. The ability of emotions to affect the social atmosphere of a classroom and learning environments has been admitted. Teachers’ creativity and teaching effectiveness have been defined as two essential elements of teaching. The article says that foreign language teachers’ professional competences can be developed both in a formal way – through participation in improvement proposals offered by various institutions, and in an informal way: reading specialized literature or meetings with other teachers of a given training discipline for exchanging professional experience. A STRIDE technique has been suggested for leading a teacher through a process of reflection using a six-step focused analysis, which helps teachers to understand both their strengths and the problem areas as well as to make them notice potential ways of reaching their goals.
IMMERSIVE TECHNOLOGIES IN PROFESSIONAL DISTANCE TRAINING OF PRIMARY SCHOOL TEACHERS
Authors: Yaremchuk Nataliya
Published: February 2023

The article analyzes the peculiarities of the use of immersive learning technologies of primary school teacher training in the conditions of digitization in the educational environment of higher education institutions. The features of the using digital tools for training of primary school teachers for the performance of professional activities are analyzed. The interpretation of immersive learning technologies as the newest form of visualization and learning technology based on the features of "immersion" in alternative reality (augmented (AR), virtual (VR), mixed (MR)) are summarized; it deals with the visualization of educational material in the context of changing image perception. Peculiarities of the functioning of augmented, virtual and mixed reality technologies in the potential of software and technical resources are presented. The approaches to the classification of immersive learning technologies are highlighted and the author's scientific views are presented. The advantages and disadvantages of using immersive learning technologies in educational practice are determined. The organizational and pedagogical, didactic, methodical, psychological factors of immersive learning technologies as conditions and levers of influence on the use of digital technologies in the pedagogical process are formed. The initial principles of the organization of the pedagogical process in the conditions of digital technologies are determined. The peculiarities of the use of immersive technologies in the content of primary education and software and technical possibilities for their presentation are defined. The results of these studies point to the opinion on the importance of the application of augmented reality technologies in the conditions of the New Ukrainian School (NUS) and the readiness of primary school teacher to build a digital educational environment with the use of appropriate tools and resources.
Os Usos da Tabela Periódica no Campo Escolar: Um Estudo Sobre o Ensino da Química em Dois Periódicos
Authors: Silva Filho Tarcísio Dias da , Aquino Julio Groppa
Published: February 2023

Este estudo consiste em uma imersão analítica, em diálogo com a teorização foucaultiana, nos discursos acerca da Tabela Periódica dos elementos químicos no campo pedagógico-escolar. Para tanto, foram eleitos artigos sobre o tema veiculados em dois periódicos acadêmicos voltados ao ensino da Química e de expressiva circulação no Brasil: Química Nova na Escola e Revista Brasileira de Ensino de Química. Os textos selecionados, recobrindo o período de 1995 a 2020, foram categorizados de acordo com seis campos temáticos: (1) Atualização e informação; (2) Periodicidade química; (3) História da ciência; (4) Jogo didático; (5) Sequência didática contextualizada; e (6) Outros. A análise do material evidenciou as arraigadas problemáticas inerentes ao ensino da referida disciplina, bem como algumas diretivas a cargo das pedagogias contemporâneas — sobretudo sob o signo do construtivismo — para saná-las. Nessa direção, é patente o paulatino esmorecimento do emprego da Tabela Periódica, a partir de 2013, nas estratégias de ensino propostas ao ensino da Química nos dois periódicos analisados.