bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determining the dynamics of electromagnetic fields, air ionization, low-frequency sound and their normalization in premises for computer equipment
Authors: Glyva Valentyn , Kasatkina Natalia , Levchenko Larysa , Tykhenko Oksana , Nazarenko Vasyl , Burdeina Nataliia , Panova Olena , Bahrii Mariia , Nikolaiev Kyrylo , Biruk Yana 
Published: July 2022

This paper reports a study into the quantitative values and dynamics of physical factors in premises and workplaces of stationary and portable computers. The factors that are practically not perceived by the senses of operators were investigated. It is established that modern monitors do not generate electromagnetic fields of hygienically significant levels. System units generate electric fields (18‒22 V/m) and magnetic fields (220‒245 nT) that are approaching the maximum permissible. Sources of uninterruptible power supply and fluorescent lighting systems generate excess magnetic fields (up to 2250 nT and 2300 nT), respectively. The main excessive factor for portable computers is electric fields (up to 9 kV/m), which is the cause of air deionization in the user's zone of stay. It is shown that one system unit in the normative volume of the room (20 m3) deionizes air (into 100 cm-3 positive and 200 cm-3 negative). The generation of ions by modernized laser printers and photocopiers of various models (up to 1500 cm-3 and 2800 cm-3, respectively) was investigated. The distances at which the ionic composition of the air corresponds to the background values (1.0‒1.5 m) were determined. That requires the introduction of artificial air ionization in workplaces of users and a decrease in the levels of electrostatic fields. The spectral composition and amplitudes of magnetic fields of external power supplies of laptop computers were determined. It is shown that the difference in sound levels measured on the scales "Lin" and "A" reaches 24 dB, which indicates a significant impact of infrasound on users. Membrane-type protective panels configured for maximum resonant frequencies of low-frequency sound and infrasound have been proposed
Implementing smart farming using internet technology and data analytics: a prototype of a rice farm
Authors: Eteng Idongesit , Ugbe Catherine , Oladimeji Samuel 
Published: July 2022

Precision Agriculture which includes the implementation of smart farms is gradually becoming commonplace in our present world. The Internet of Things (IoT) and also Analytics techniques are useful tools for the actualization of smart farms as they allow for information dissemination to rural farmers and also serve as a platform for monitoring farm activities. When farm activities are properly monitored, food production is optimized. As the world’s population grows, there is a greater challenge of the availability of food. The combination of IoT and data analytics has not been fully explored for Smart farming especially in developing economies. This paper proposes a FarmSmart Application using an IoT-based mobile monitoring system that combines sensors, and data analytics to manage irrigation processes and broadcast Agricultural information to farmers. The FarmSmartApp was implemented on the IntelliJ IDE using C++ and MongoDB.Python and Excel were used for the data analytics. The effectiveness of the proposed system is examined on a real-world dataset harvested from the mounted sensors. Also an initial evaluation of the system is done by stakeholders. Simple Analysis of Variance of light, moisture and temperature led to the rejection of the null hypothesis of no significance difference in mean effect among the variables since fcalc is greater than fcrit justified by p value less than 0.05. On the system evaluation, 97 % of the examined stakeholders agreed that the system delivered on the agreed functionality .The system therefore has the capacity to provide farmers with useful Agricultural information to guide irrigation procedures and Agricultural decision making
Improving the methodological approach to determining the number of postpostgraduates planned for admission
Authors: Maistrenko Oleksandr , Artamoshchenko Vadym , Petushkov Volodymyr , Shcherba Andrii , Balandin Maksim , Stetsiv Stanislav , Heorhadze Oleksandr , Kharabara Volodymyr , Sivak Oleksandr 
Published: July 2022

The process of managing a higher institution in determining the number of postgraduates who are planned for admission is the object of this study.
The problem that was addressed is the inability to reasonably predict the need for the number of postgraduates to offset the negative consequences of staff turnover in a higher education institution.
An improved method of forecasting the trend of the time series of indicators that form the need for specialists of higher qualification has been proposed.
Special feature of the proposed method is the ability to reasonably determine the number of full-time positions of higher qualification specialists; those dismissed; postgraduates who successfully defended their thesis over a certain period. Due to this feature of this method, it is possible to form reasonable initial data for predicting the negative consequences of staff turnover in a higher education institution.
The scope of practical use of this method for determining the projected indicators is the stage of planning the educational process in a higher education institution.
A comprehensive methodology for determining the number of postgraduates who are planned for admission to postgraduate studies in specialties is proposed.
Applying the suggested procedure can make it possible to obtain the projected data with sufficient accuracy and prevent excessive recruitment, or under-recruitment of postgraduates, which will affect the expenditure of finances and the quality of higher education organization. The projected inaccuracy of the existing approach to determining the number of postgraduates compared to the proposed one is about 35 %.
The peculiarity of the methodology is the ability to justify the number of postgraduates that need to be recruited to graduate school, taking into consideration regional and sectoral contexts. Additionally, a special feature of this procedure is its versatility for any specialty and any institution of higher education.
The scope and conditions for the practical use of this set of techniques for determining the projected indicators is the process of managing a higher education institution when determining the need for postgraduates
Devising a method for segmenting camouflaged military equipment on images from space surveillance systems using a genetic algorithm
Authors: Khudov Hennadii , Makoveichuk Oleksandr , Butko Ihor , Gyrenko Igor , Stryhun Vitalii , Bilous Oleh , Shamrai Nazar , Kovalenko Anna , Khizhnyak Irina , Khudov Rostyslav 
Published: July 2022

The object of this research is the process of segmentation of camouflaged military equipment in images from space surveillance systems.
The method of segmentation of camouflaged military equipment in images from space surveillance systems has been improved using a genetic algorithm. Unlike known methods, the method of segmentation of camouflaged military equipment using a genetic algorithm involves the following:
– highlighting brightness channels in the Red-Green-Blue color space;
– the use of a genetic algorithm in the image in each channel of brightness of the RGB color space;
– image segmentation is reduced to the formation of generations and populations of chromosomes, the calculation of the objective function, selection, crossing, mutation, and decoding of chromosomes in each brightness channel of the Red-Green-Blue color space.
Experimental studies were conducted on the segmentation of camouflaged military equipment using a genetic algorithm. It is established that the improved method of segmentation using a genetic algorithm makes it possible to segment images from space surveillance systems.
A comparison of the quality of segmentation was carried out. It is established that the improved method of segmentation using a genetic algorithm reduces segmentation errors in the following way:
– compared to the known k-means method, by an average of 15 % of errors of the first kind and an average of 7 % of errors of the second kind;
– compared to the method of segmentation based on the algorithm of swarm of particles, by an average of 3.8 % of errors of the first kind and an average of 2.9 % of errors of the second kind.
The improved segmentation method using a genetic algorithm can be implemented in software and hardware imaging systems from space surveillance systems
Investigation of evaluated temperature oxidation for IN-738 LC superalloy turbine blade thermally coated by AL2O3 using slurry coating process
Authors: Mousa Naseer Abdulrazzaq , Alshadeedi Bajel Mohammed , Attia Osam Hassan , Mahmood Hussein Adel , Adam Nor Mariah 
Published: July 2022

The study aims to investigate the effect of Al2O3 and Al additions to Nickel-base superalloys as a coating layer on oxidation resistance, and structural behavior of nickel superalloys such as IN 738 LC. Nickel-base superalloys are popular as base materials for hot components in industrial gas turbines such as blades due to their superior mechanical performance and high-temperature oxidation resistance, but the combustion gases' existence generates hot oxidation at high temperatures for long durations of time, resulting in corrosion of turbine blades which lead to massive economic losses. Turbine blades used in Iraqi electrical gas power stations require costly maintenance using traditional processes regularly. These blades are made of nickel superalloys such as IN 738 LC(Inconel 738). Few scientists investigated the impact of Al2O3 or Al additions to Nickel-base superalloys as coating layer by using the slurry coating method on oxidation resistance to enhance the Nickel-base superalloy's oxidation resistance. In this study, IN 738 LC is coated with two different coating percentages, the first being (10 Al+90 Al2O3) and the second being (40 Al+60 Al2O3). Scanning Electron Microscope (SEM) and X-Ray Diffraction (XRD) were performed on all samples before and after oxidation. According to the results, SEM images of the surface revealed that the layer of the surface has a relatively moderated porosity value and that some of the coating layers contain micro-cracks. The best surface roughness of specimens coated with 60 % alumina+40 % aluminum was 5.752 nm. Whereas, the surface roughness of specimens coated with 90 % alumina+10 % aluminum was 6.367 nm.Results reveal that alloys with both Al2O3 and Al additions have reported a positive synergistic effect of the Al2O3and Al additions on oxidation resistance. Moreover,the NiCrAl2O3 thermal coating has good oxidation resistance and the effective temperature of anti-oxidation is raised to 1100 °C in turn reducing the maintenance period of turbine blades
The management of premenstrual syndrome: results of a questionnaire survey of women in Lviv pharmacies, Ukraine
Authors: Makukh Khrystyna , Horodnycha Oksana , Nepyivoda Oksana 
Published: July 2022

The aim. To establish the prevalence of PMS symptoms and evaluate the medication management of this disorder in Lviv.
Materials and methods. The objects of the study were: scientific publications related to the problem of PMS; the results (n=105) of the survey. Methods applied: systematization, generalization, comparison, questionnaire. The statistical analyses (descriptive statistics, univariable analysis using simple logistic regression, multiple logistic regression) were performed with SPSS Trial.
Results. The prevalence of PMS among the surveyed was high (83,8 %). The most common complaints are abdominal and/or low back pain (46,6 %) and increased irritability/aggression (43,2 %). Almost half (46,6 %) of women who experienced PMS consult a pharmacist, and only 23,9 % seek medical advice. At the same time, 87,5 % (n=77) of women (among those suffering from PMS) use medicines to alleviate/eliminate the symptoms of PMS. Nonsteroidal anti-inflammatory drugs (77,6 %), sedatives (36,8 %), and complex herbal remedies that affect the genital system (18,4 %) are the most common drugs for PMS.
Choosing the way of PMS management, 44,8 % of women would prefer herbal medicines to synthetic ones. Both previous using of synthetic drugs for PMS and adverse drug reactions to synthetic drugs have a statistically significant contribution to a positive attitude towards herbal remedies (p=0,004 and p=0,026, respectively).
Conclusion. PMS is a common medical and social issue. Achieving effective and safe medication management of PMS requires the joint participation of a physician, pharmacist, and the patient in terms of compliance and lifestyle adjustments
Catalytic cracking of M-100 fuel oil: relationships between origin process parameters and conversion products
Authors: Shakiyeva Tatyana V. , Sassykova Larissa R. , Khamlenko Anastassiya A. , Dzhatkambayeva Ulzhan N. , Sassykova Albina R. , Batyrbayeva Aigul A. , Zhaxibayeva Zhanar M. , Ismailova Akmaral G. , Sendilvelan Subramanian 
Published: July 2022

The development of technologies for processing oil residues is relevant and promising for Kazakhstan, since the main oil reserves of hydrocarbons in the country are in heavy oils. This paper describes the study of the influence of technological modes on the yield and hydrocarbon composition of products formed because of cracking of commercial fuel oil and fuel oil M-100 in the presence of air in the reactor. For catalysts preparation, natural Taizhuzgen zeolite and Narynkol clay were used. It was found that the introduction of air into the reaction zone, in which oxygen is the initiator of the cracking process, significantly increases the yield of the middle distillate fractions. In the presence of air, the yield of diene and cyclodiene hydrocarbons significantly increases compared to cracking in an inert atmosphere. According to the data of IR spectral analysis of M-100 grade oil fractions, in addition to normal alkanes, the final sample contains a significant amount of olefinic and aromatic hydrocarbons. On the optimal catalyst, owing to oxidative cracking of fuel oil, the following product compositions (in %) were established: Fuel oil M-100: gas – 0.8, gasoline – 1.1, light gas oil – 85.7, heavy residue – 11.9, loss – 0.5 and total – 100.0%; commodity Fuel oil (M-100): gas – 3.3, gasoline – 8.4, light gas oil – 84.3, heavy residue – 4.0, loss – 0 and total – 100.0%.
Activity features of catalysts for thermocatalytic hydrogenation processing of polymer waste
Authors: Tashmukhambetova Zheneta Kh. , Kalamgali Tanakoz O. , Aubakirov Yermek A. , Sassykova Larissa R. , Akhmetova Firuza Zh. , Alpysbay Albina S. 
Published: July 2022

The aim of this study was to obtain new catalysts for the processing of carbon-containing polymer waste based on polyethylene and polypropylene, represented mostly by lids from beverages bottled in plastic containers, which accumulate in huge quantities in landfills, by the method of thermocatalytic hydrogenation into liquid fuels and other products. The process was carried out in the presence of fuel oil as a binder, a source of hydrogen and additional hydrocarbons. Thus, two tasks can be solved simultaneously: recycling the polymer waste and obtaining the alternative raw materials from the polymer waste in order to save resources and improve the environmental situation in general. New catalysts based on activated zeolite modified with Mo(VI) and W(VI) salts of various concentrations for the thermocatalytic hydrogenation processing of waste plastics into motor fuels were synthesized. The composition, structure, morphology and adsorption properties of the catalysts were determined by different physicochemical methods. The suitability of the obtained catalysts for use in the thermocatalytic hydrogenation processing of plastic waste into fuels was determined. The catalysts were tested during the processing of a mixture of polyethylene-polypropylene: a paste-forming agent (fuel oil) at T=450 °C and a pressure of 0.6 MPa. The individual and group composition of gasoline, diesel and gas oil fractions was determined by chromatography coupled with mass spectrometry. The maximum yield of the gasoline fraction (16.9 wt.%) and diesel fraction (39.31 wt.%) was obtained on a 2%W(VI)/diatomite catalyst.
Evaluasi Pembelajaran Penjas bagi Tunagrahita di Masa Pandemi Covid-19
Authors: Solihin Akhmad Olih 
Published: July 2022

Penelitian ini bertujuan untuk untuk mengetahui pelaksanaan evaluasi dalam pembelajaran Pendidikan Jasmani, Olahraga, dan Kesehatan pada Masa Pandemi Covid-19 di SLBN-A Citeureup, Kota Cimahi. Penelitian ini merupakan penelitian deskriptif. Metode yang digunakan adalah survey dengan teknik pengambilan data menggunakan kuesioner dalam bentuk angket. Subjek dalam penelitian ini adalah seluruh guru Tunagrahita di SLBN-A Citeureup, Kota Cimahi yaitu 11 guru, karena keseluruhan populasi dijadikan sampel sehingga disebut penelitian populasi/total sampling. Instrumen yang digunakan adalah angket tertutup. Teknik analisis data menggunakan analisis deskriptif kuantitatif yang dituangkan dalam bentuk persentase.Hasil penelitian menunjukkan bahwa survey pelaksanaan evaluasi PJOK di SLBN-A Citeureup, Kota Cimahi berada pada kategori “sangat kurang” sebesar 0% (0 guru), “kurang” sebesar 45,45% (5 guru) “cukup” sebesar 36,36% (4 guru), “baik” sebesar 9,09% (1 guru), dan “sangat baik” sebesar 9,09% (1 guru). Penelitian ini diharapkan dapat bermanfaat bagi peneliti, sekolah dan guru-guru tunagrahita, serta dapat menciptakan pembelajaran Penjas yang lebih efektif dan efesien bagi siswa tunagrahita.
Pengaruh Self Regulated Lerning dalam Pembelajaran Tenis Meja Terhadap Self Control
Authors: Ghazali Muhamad Arif 
Published: July 2022

Kurangnya pengelolaan diri mahasiswa dalam pembelajaran mengharuskan pendidik menerapkan model pembelajaran self-regulated learning untuk meningkatkan kemampuan mahasiswa dalam mengontrol diri, bertanggung jawab, mempunyai keyakinan yang tinggi serta lebih mandiri dalam pembelajaran tenis meja. sehingga mahasiswa termotivasi untuk mencapai tujuan belajar. Tujuan dari penelitian ini adalah untuk mengetahui apakah model SRL dalam pembelajaran tenis meja dapat mengembangkan self-control. Metode penelitian yang digunakan adalah metode penelitian eksperiment, dengan desain penelitian menggunakan Postest Only Control Group Desain. Populasi dalam penelitian ini mahasiswa Prodi PGSD PENJAS FPOK UPI berjumlah 80 orang. Dengan teknik pengambilan sampel simple random sampling yang berjumlah 40 orang. Instrument yang digunakan untuk mengukur self-control mengadopsi dari Tangney ( self-control scale). Teknik analisi data menggunakan uji independent sample t-test dengan software SPss 24 for windows. Hasil penelitian menunjukan bahwa model self- regulated learning memberikan pengaruh yang signifikan terhadap self-control dalam pembelajaran tenis meja mahasiswa PGSD PENJAS FPOK UPI.
SURVEI MINAT DAN MOTIVASI WANITA MEMILIH OLAHRAGA SEPAK BOLA PADA TIM PERSIKOBA PUTRI KOTA BATU
Authors: Anita Febry , Adi Sapto , Andiana Olivia 
Published: July 2022

Tujuan dari penelitian ini adalah untuk mengetahui minat, motivasi intrinsik dan motivasi ekstrinsik wanita memilih olahraga sepakbola pada tim Persikoba Putri Kota Batu. Metode penelitian yang digunakan adalah deskriptif kuantitatif dengan teknik survei. Populasi dan sampel yang digunakan sebanyak 30 wanita, dengan teknik sempel jenuh, teknik pengumpulan data menggunakan angket dan analisis.Hasil dalam penelitian ini yaitu pada variabel Minat yaitu secara keseluruhan diperoleh sebesar 90 % dalam kategori “Sangat Baik” dengan rata – rata 87,77%, variabel motivasi intrinsik mendapatkan hasil 90% dalam kategori “Sangat Baik” dengan rata – rata 94,34%, sedangkan untuk motivasi ekstrinsik dengan hasil 93,34 % dengan kategori “Sangat Baik” dan 6,66% dengan rata - rata tingkat motivasi ekstrinsik yaitu 87,94%. Dari penelitian tersebut dapat dijelaskan bahwa motivasi intrinsik mendapatkan nilai tertinggi dibandingkan dengan motivasi ekstrinsik dan minat. Motivasi intrinsik sangat dominan dalam mempengaruhi wanita memilih olahraga sepakbola. Kesimpulannya minat, motivasi intrinsik dan ekstrinsik sangat mempengaruhi wanita dalam memilih olahraga sepakbola pada tim PERSIKOBA Putri Kota Batu
PERBEDAAN POLA CEDERA OLAHRAGA PADA ATLET LAKI-LAKI DAN PEREMPUAN
Authors: Abdullah Ahmad , Cahyo Septian Dwi , Kinanti Rias Gesang 
Published: July 2022

Cedera olahraga dapat disebabkan oleh berbagai faktor salah satunya ialah karakteristik individu atlet seperti jenis kelamin (gender). Identifikasi pola cedera atlet berdasarkan gender penting dilakukan untuk mengurangi angka kejadi cedera serta menyusun teknik latihan olahraga sesuai dengan kebutuhan masing-masing atlet. Tujuan: Penelitian ini bertujuan untuk mengidentifikasi perbedaan lokasi dan tingkat cedera olahraga pada atlet laki-laki dan perempuan pada cabang olahraga karate, bolavoli dan atletik. Metode: Penelitian ini merupakan penelitian cross sectional pada atlet KONI Kota Malang dengan jumlah sampel 60 orang (purposive sampling), analisis statistik menggunakan Uji Mann-Whiteny dan Uji T tidak berpasangan. Hasil: Pada cabang olahraga karate, perbedaan yang signifikan ditemukan pada tingkat cedera berat (p-value=0,0399), sedangkan pada cabang olahraga bolavoli perbedaan yang signifikan ditemukan pada tingkat cedera ringan (p-value=0,0255) dan lokasi cedera ekstremitas atas (p-value=0,0093). Kesimpulan: Terdapat perbedaan pola cedera olahraga antara atlet perempuan dan laki-laki utamanya pada cabang olahraga karate dan bolavoli.
PENGARUH SKIPPING SINGLE FOOT JUMPS TERHADAP KESEIMBANGAN DINAMIS PEMAIN BASKET
Authors: Rahim Anita Faradilla , Rahmanto Safun , Pentalia Kharin Desyani 
Published: July 2022

Pemain basket memiliki tubuh yang ideal tetapi saat berebut bola dengan lawan mau melompat atau menembak sering tidak stabil dan mendarat kurang stabil. Dengan mempertahankan posisi tubuh dengan stabil Ketika berdiri dengan landasan dengan baik maka keseimbangan dinamis baik. Pemberian latihan skipping dengan teknik single foot jumps dapat meningkatkan keseimbangan dinamis pada pemain basket. Tujuan penelitian ini adalah untuk Mengetahui Pengaruh Latihan Skipping Single Foot Jumps Terhadap Keseimbangan Dinamis Pemain Basket. Metode Penelitian yang digunakan adalah penelitian pre experimental dengan one group pre-test post-test design. Populasi dalam penelitian ini adalah pemain basket yang ada di kota Malang. Jumlah sampel 10 responden yang memenuhi kriteria inklusi dengan menggunakan teknik purposive sampling. Hasil penelitian yang didapatkan adalah nilai keseimbangan dinamis diukur dengan Y balance test. Hasil analisis penelitian dengan paired T test dengan nilai signifikansi 0.001 dan 0.000 (p<0.05). Kesimpulan penelitian ini adalah Skipping single foot jumps memiliki pengaruh terhadap nilai keseimbangan dinamis pemain basket.