bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stochastic optimization over the Pareto front by the augmented weighted Tchebychev program
Authors: Юнси-Аббаси Лейла , Мула Мустафа 
Published: August 2021

В этой статье мы предлагаем новый алгоритм для решения многоцелевых задач стохастического целочисленного линейного программирования (MOSILP). Мы оптимизируем данную стохастическую линейную функцию φ по полному набору эффективных решений MOSILP, которые были преобразованы в эквивалентную детерминированную задачу с использованием неопределенных предположений, вводимых лицом, принимающим решения. Для этой цели мы применяем двухэтапный рекурсивный подход, при котором расширенная взвешенная программа Чебышева постепенно оптимизируется для создания эффективного решения, тем самым улучшая значение вспомогательной функции φ . Предлагаемый здесь подход определяет и решает последовательность целочисленных линейных программ с нарастающими ограничениями, так что на каждом этапе алгоритма генерируется новое эффективное решение. Для иллюстрации представлен числовой пример
In this paper, we propose a novel algorithm to deal with multi-objective stochastic integer linear programming problems (MOSILP). Given a stochastic linear function φ , we will optimize it over the full set of efficient solutions of a MOSILP. We convert the latter into an equivalent deterministic problem using uncertain aspirations which are inputs specified by the decision maker. For this purpose, we adopt a 2-stage recourse approach where an augmented weighted Tchebychev program is progressively optimized to generate an efficient solution, the value of the utility function φ is improved to enumerate all efficient solutions. The approach proposed here defines and solves a sequence of progressively more constrained integer linear programs, so that a new efficient solution is generated at each step of the algorithm. A numerical example is presented for illustration
Upaya Peningkatan Hasil Belajar Peserta Didik Pada Pembelajaran Daring Tema Globalisasi Melalui Media Quizizz Kelas VI SD Negeri Kutowinangun 11 Kota Salatiga Tahun Pelajaran 2020/2021
Authors: Elma Elma Mulia Sari 
Published: August 2021

ABSTRAK Penelitian ini memiliki tujuan untuk mengukur peningkatan hasil belajar peserta didik dalam pembelajaran daring melalui media game edukasi Quizizz. Penelitian ini merupakan penelitian kuantitatif deskriptif yang terfokus pada evaluasi pembelajaran menggunakan media online. Populasi penelitian yakni seluruh peserta didik SD Negeri Kutowinangun 11 Kota Salatiga yang diajar pada mata pelajaran tematik menggunakan metode daring sebanyak 21 peserta didik. Penelitian ini dilaksanakan 2 siklus, masing-masing siklus 1 kali pertemuan. Setiap pertemuan terdisi dari 4 tahap yaitu perencanaan, pelaksanaan, observasi, dan refleksi. Pelaksanaan tahap-tahap penelitian sedikit berbeda dari pembelajaran dalam kelas karena pembelajaran dilakukan secara terpisah atau peserta didik berada di rumah masing-masing. Berdasarkan hasil penelitian, pada siklus I diperoleh nilai rata-rata hasil belajar peserta didik 51,43 dengan kategori cukup. Sedangkan pada siklus II diperoleh nilai rata-rata hasil belajar peserta didik 91,90 dengan kategori tinggi. Jadi dari siklus I dan siklus II terjadi peningkatan hasil belajar peserta didik sebanyak 40,47. Dengan demikian dapat disimpulkan bahwa media belajar berbasis game edukasi quizizz dapat meningkatkan hasil belajar peserta didik dalam pembelajaran daring pada tema Globalisasi.Kata Kunci: Hasil Belajar, Pembelajaran Daring, Game Edukasi ABSTRACT This study aims to measure the increase in student learning outcomes in online learning through educational game media Quizizz. This research is a descriptive quantitative study that focuses on evaluating learning using online media. The study population was all students of SD Negeri Kutowinangun 11 Kota Salatiga who were taught on thematic subjects using online methods as many as 21 students. This research was conducted in 2 cycles, each cycle 1 meeting. Each meeting consists of 4 stages, namely planning, implementing, observing, and reflecting. The implementation of the research stages is slightly different from classroom learning because learning is carried out separately or students are in their respective homes. Based on the results of the study, in the first cycle the average value of student learning outcomes was 51.43 in the sufficient category. Whereas in the second cycle the average value of student learning outcomes was 91.90 in the high category. So from cycle I and cycle II there was an increase in student learning outcomes by 40.47. Thus it can be concluded that learning media based on quizizz educational games can improve student learning outcomes in online learning on the theme of Globalization.Keywords: Learning Outcomes, Online Learning, Educational Games
Upaya Meningkatkan Motivasi Belajar Tema Wirausaha Siswa Kelas 6 SD Negeri 1 Bonyokan Melalui Media Power Point Dengan Berbantu Aplikasi Google Meet Tahun Pelajaran 2020/2021
Authors: Winarsih Tyas , Purwati Heni , Hendriyanti Lia Maylani 
Published: August 2021

ABSTRAK Tujuan Penelitian ini adalah untuk meningkatkan motivasi belajar tema wirausaha siswa kelas 6 SD Negeri 1 Bonyokan melalui media power point dengan berbantu aplikasi google meet.Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Penelitian dilakukan dalam tiga siklus. Subjek penelitian adalah siswa kelas 6 yang berjumlah 22 siswa. Sumber data berasal dari siswa, guru, data dan dokumen. Teknik pengumpulan data dengan observasi, tes, dokumentasi. Analisis data menggunakan teknik analisis deskriptif dan teknik analisis secara kualitatif.Hasil penelitian ini menunjukkan bahwa melalui media power point dengan berbantu aplikasi google meet dapat meningkatkan motivasi belajar tema wirausaha siswa kelas 6 SD Negeri 1 Bonyokan Tahun Pelajaran 2020/2021. Peningkatan terjadi pada siklus I sebesar 70% pada motivasi belajar maupun pada hasil belajar, walaupun belum optimal. Pelaksanaan siklus II menyebabkan motivasi dan hasil belajar siswa mencapai kualifikasi lebih tinggi yaitu 80% pada motivasi belajar dan 90 % pada hasil belajar. Pelaksanaan siklus III motivasi dan hasil belajar siswa terjadi peningkatan yang sangat signifikan yaitu 95 % pada motivasi belajar maupun hasil belajar siswa.Simpulan penelitian ini adalah penerapan media power point berbantu aplikasi google meet dapat meningkatkan motivasi belajar tema wirausaha siswa kelas 6 SD Negeri 1 Bonyokan Tahun Pelajaran 2020/2021 Kata Kunci: powet point, google meet, motivasi belajar ABSTRACT The purpose of the research is to improve the motivation of learning tema wirausaha on sixth grade students of SDN 1 Bonyokan by using power point media and google meet. This is a classroom action research. This research is carried out on three cycles. Subject of the research is 22 of sixth grade students. Source of data are from students, teacher and document. Technique of validity data uses source of data triangulation. Analysis of data uses descriptive analysis technique and qualitative analysis technique.The result of the research shows that by using power point and google meet can improve the motivation of learning tema wirausaha of sixth grade students SDN 1 Bonyokan in academic year 2020/2021. The improvement occurs in cycle 1. It improves about 70% on motivation of learning and 70% on result of learning. On cycle 2, there are high qualification on 80 % of motivation and 90% of result of learning. On cycle 3, there are significant improvement on motivation and result of learning. It is 95% on motivation on result of learning.The conclusion of the research is implementing power point media and google meet can improve motivation of learning’s students on tema wirausaha of students of SDN 1 Bonyokan in academic year 2020/2021 Keyword: power point, google meet, motivation of learning
Peningkatan Hasil Belajar Tematik Siswa melalui Metode Discovery Learning pada Siswa SD Negeri Pucangluwuk 02 Kecamatan Bojong Kabupaten Tegal Tahun pelajaran 2020/2021
Authors: Putri Lilik Nurendah 
Published: August 2021

Lilik Nurendah Putri , Peningkatan Hasil Belajar Tematik Tema 5 Subtema 1 melalui Model Pembelajaran Discovery Learning pada Siswa Kelas VI SD Negeri Pucangluwuk 02 Kecamatan Bojong Kabupaten Tegal Tahun Pelajaran 2020/2021. Hasil belajar siswa pada pembelajaran tematik tema 5 subtema 1 perlu ditingkatkan, oleh karena itu pembelajaran harus lebih menarik, efektif dan menyenangkan. Salah satu cara yang dapat dilakukan yaitu melalui peerapan model pembelajaran Discovery Learning dimana siswa diminta untuk menemukan pengalaman belajarnya sendiri. Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model Discovery Learning terhadap hasil belajar tematik siswa kelas VI SD Negeri Pucangluwuk 02 Kecamatan Bojong Kabupaten Tegal. Adapun sampel penelitian adalah siswa kelas VI SD Negeri Pucangluwuk 02 yang berjumlah 15 siswa. Data di kumpulkan melalui kegiatan prasiklus, siklus 1, dan siklus 2. Hasil penelitian ini menunjukkan bahwa hasil belajar tematik tema 5 subtema 1 siswa SD Negeri pucangluwuk 02 sebelum menggunakan metode Discovery learning dan setelah menggunakan model Discovery learning mengalami peningkatan. Kata Kunci: hasil belajar 1, tematik 2, discovery learning 3 (maksimal 4 kata kunci) ABSTRACT Lilik Nurendah Putri, Thematic Learning Outcomes Improvement in Theme 5 Sub-theme 1 through the Discovery Learning Model for Class VI Students of SD Negeri Pucangluwuk 02, Bojong District, Tegal Regency, Academic Year 2020/2021. Student learning outcomes in thematic learning in theme 5 sub-theme 1 need to be improved, therefore learning must be more interesting, effective and fun. One way that can be done is through the application of the Discovery Learning learning model where students are asked to find their own learning experiences. This study aims to determine the effect of the application of the Discovery Learning model on thematic learning outcomes of grade VI SD Negeri Pucangluwuk 02, Bojong District, Tegal Regency. The research sample was the sixth grade students of SD Negeri Pucangluwuk 02, totaling 15 students. The data were collected through pre-cycle activities, cycle 1, and cycle 2. The results of this study indicate that the thematic learning outcomes of theme 5 sub-themes 1 of SD Negeri Pucangluwuk 02 before using the Discovery learning method and after using the Discovery learning model have increased.Keywords: learning outcomes 1, thematic 2, discovery learning 3 (maximum 4 keywords)
Pelaksanaan Pembelajaran Ekstrakurikuler Menggambar terhadap Hasil Prestasi di SDIT Az-Zahra Demak
Authors: Hapsari Winda Novia 
Published: August 2021

Dunia pendidikan tidak dapat terlepas dan terpisahkan dari suatu lembaga pendidikan formal seperti pada sekolah dasar. Dalam pembelajaran sekolah dasar, pendidikan seni tertera dalam kurikulum di SD karena memuat materi pelajaran seni budaya dan keterampilan (SBdP). Kegiatan ekstrakurikuler sebagai salah satu cara sekolah untuk dapat membantu siswa dalam mengembangkan bakat seni dan karakteristik mereka. Kegiatan ekstrakurikuler atau yang sering disebut ekskul ini merupakan kegiatan tambahan yang di buat oleh setiap sekolah diluar jam wajib atau intrakurikuler. Penelitian ini bertujuan untuk mendeskripsikan (1) pelaksanaan pembelajaran ekstrakurikuler menggambar di SDIT Az-Zahra Demak sebelum sekolah diliburkan, (2) hasil prestasi yang sudah diperoleh siswa dengan adanya pelaksanaan pembelajaran ekstrakurikuler menggambar di SDIT Az-Zahra Demak sebelum sekolah diliburkan. Data dikumpulkan dengan menggunakan metode observasi, wawancara, catatan lapangan, angket, dan dokumentasi serta dianalisis dengan teknik deskriptif dan kualitatif. Hasil penelitian adalah: (1) pembelajaran ekstrakurikuler menggambar di SDIT Az-Zahra Demak termasuk dalam kategori baik, dimana guru telah melakukan pembelajaran melalui beberapa tahapan yang sesuai dengan prosedur pembelajaran, (2) hasil prestasi terhadap pembelajaran ekstrakurikuler menggambar di SDIT Az-Zahra Demak sudah terwujud dengan baik terbukti dengan perolehan kejuaraan di berbagai even lomba. Kata Kunci: pembelajaran, ekstrakurikuler menggambar, hasil prestasi
Peningkatan Keterampilan Menulis Descriptive Text Pada Mata Pelajaran Bahasa Inggris Dengan Menggunakan Media Hp Android Di Kelas X-MIPA-1 SMA Negeri 7 Semarang Tahun Pelajaran 2018/2019
Authors: Indriyastuti Atiek 
Published: August 2021

Tujuan Penelitian ini adalah untuk mengetahui sejauh mana peningkatan keterampilan siswa dalam menulis descriptive text di Kelas X-MIPA-1 SMA Negeri 7 Semarang semester 1 Tahun Pelajaran 2018/2019 sebagai hasil penggunaan Media HP Android. Penelitian ini juga digunakan untuk mengetahui sejauh mana peningkatan pengetahuan dan sikap belajar siswa selama pembelajaran. Metode yang digunakan dalam penelitian ini adalah metode Penelitian Tindakan Kelas dengan teknik siklus yang terdiri dari dua tindakan siklus yaitu siklus 1 dan siklus 2. Alat pengumpulan data yang digunakan untuk data kuantitatif berupa tes tertulis ulangan harian dan data kualitatif digunakan lembar observasi atau pengamatan, lembar refleksi diri, lembar penilaian antar teman, dan rubrik penilaian kinerja. Hasil penelitian menunjukkan media hp android dapat meningkatkan keterampilan menulis descriptive text. Ketuntasan Belajar mengalami peningkatan dari kondisi awal 53,13% menjadi 65,63% pada siklus I dan meningkat menjadi 93,75% pada siklus II. Peningkatan keterampilan siswa dalam menulis descriptive text pada siklus I mencapai 2,53% dari rata-rata hasil belajar pada pra siklus dan hasil belajar pada siklus II mengalami peningkatan sebesar6,81% dari rata-rata hasil belajar pada siklus I atau mengalami peningkatan sebesar 9,34% jika dibandingkan dengan rata-rata hasil belajar pada pra siklus.Kata Kunci: Menulis- descriptive-hp android
Generalized differential-linear cryptanalysis of block cipher
Authors: Alekseychuk A.N. 
Published: August 2021

Differential-linear cryptanalysis of block ciphers was proposed in 1994. It turns out to be more efficient in comparison with (separately) differential and linear cryptanalytic methods, but its scientific substantiation remains the subject of further research. There are several publications devoted to formalization of differential-linear cryptanalysis and clarification of the conditions under which its complexity can be mathematically accurately assessed. However, the problem of the differential-linear cryptanalytic method substantiation remains completely unresolved.
This paper presents first results obtained by the author in the direction of solving this problem. The class of differential-linear attacks on block ciphers is expanded. Namely, both distinguishing attacks and attacks aimed at recovering one bit of information about a key are considered. In this case, no assumptions are made (as in well-known publications) about the possibility of representing the cipher in the form of some two components. Lower bounds of information complexity of these attacks are obtained. The expressions of these bounds depend on the averaged (by keys) values of the elements’ squares of the generalized autocorrelation table of the encryption transformation. In contrast to the known ones, the obtained bounds are not based on any heuristic assumptions about the investigated block ciphers and are valid for a wider class of attacks as compared to the traditional differential-linear attack. Relations between, respectively, differential, linear and differential-linear properties of bijective Boolean mappings are given. In contrast to the well-known works, the matrix form of the relations is used that makes it possible to clarify better their essence and simplify the proofs. A new relation is derived for the elements of the generalized autocorrelation table of the encryption transformation of the product of two block ciphers, which may be useful in further research.
Analysis of the complexity of attacks on multivariate cryptographic transformations using algebraic field structure
Authors: Kandiy S.O. , Maleeva G.A. 
Published: August 2021

In recent years, interest in cryptosystems based on multidimensional quadratic transformations (MQ transformations) has grown significantly. This is primarily due to the NIST PQC competition [1] and the need for practical electronic signature schemes that are resistant to attacks on quantum computers. Despite the fact that the world community has done a lot of work on cryptanalysis of the presented schemes, many issues need further clarification. NIST specialists are very cautious about the standardization process and urge cryptologists [4] in the next 3 years to conduct a comprehensive analysis of the finalists of the NIST PQC competition before their standardization.
One of the finalists is the Rainbow electronic signature scheme [2]. It is a generalization of the UOV (Unbalanced Oil and Vinegar) scheme [3]. Recently, another generalization of this scheme – LUOV (Lifted UOV) [5] was found to attack [6], which in polynomial time is able to recover completely the private key. The peculiarity of this attack is the use of the algebraic structure of the field over which the MQ transformation is given. This line of attack has emerged recently and it is still unclear whether it is possible to use the field structure in the Rainbow scheme.
The aim of this work is to systematize the techniques used in attacks using the algebraic field structure for UOV-based cryptosystems and to analyze the obstacles for their generalization to the Rainbow scheme.
On the Doppler effect in radar
Authors: Ryazantsev O.V. , Мarchenko S.V. , Kulik M.V. 
Published: August 2021

The possibilities of simultaneous use of the longitudinal and transverse Doppler effects have been analyzed, and expressions have been derived for the corresponding beat frequencies between the emitted and received signals.
As a rule, only the longitudinal Doppler effect is used in modern radio engineering systems, which makes it possible to determine the radial component of the object's speed. In addition, there are situations for which it is generally impossible to determine the speed of an object without taking into account the transverse Doppler effect.
The authors analyze the fundamental possibilities of improving the functioning of radar stations that simultaneously use both types of Doppler effects – longitudinal and transverse ones – making it possible to determine the total speed of the observed object in any situations.
The authors have analyzed the longitudinal and transverse Doppler effects for the case of a moving emitting object, derived expressions for the Doppler shift and expressions for the beat frequency in the case of an active radar station for both types of Doppler effects, which make it possible to obtain the value of the object's speed in any situations.
Variants of determining the total speed of a moving object have been proposed, accounting the determination of its radial and tangential components. Idealized situations in which only one of the Doppler effects appeared have been considered.
Monitoring the difference in liquid levels in adjacent tanks
Authors: Zhukov B.V. , Odnovo A.V. 
Published: August 2021

The possibility of synchronous monitoring of coolant levels in the cooling systems of nuclear and thermal power plants before and after the barrier mesh using a specialized level gauge is considered.
The block diagram of a level gauge providing current synchronous control of liquid levels in two adjacent channels (reservoirs), as well as the difference in liquid levels in them, is presented. A feature of the structural diagram of a specialized acoustic level gauge is the use of a radiation source common to both channels and a device for dividing the common waveguide path into two channels.
An algorithm for the functioning of a specialized level gauge has been developed, in which, based on time diagrams, it is shown how the level is controlled in each channel and the difference in liquid levels before and after the barrier grid is calculated. The description of the algorithm is accompanied by calculated expressions for determining the levels and the difference in liquid levels.
For a level gauge made in the acoustic wavelength range, a condition is given that is necessary for the creation of a device that provides matching when dividing a common channel into two independent channels of pulse signal propagation. This condition made it possible to establish the relationship between the inner diameters of cylindrical pipes used as waveguide paths of an acoustic wave.
Variants of the implementation of a specialized level gauge based on two modifications of the ZOND-3M level gauge are proposed, in which cylindrical pipes are used as waveguiding systems. It is shown that when using the AP-7VT transceiver, the level gauge will have an operating range of up to 10m with a level resolution of ± 1mm, and when using the AP-70T transceiver, it will have an operating range of up to 20m with a level resolution of ± 1cm.
ANALYSIS OF EFFICIENCY OF TECHNICAL AND FACTORS AFFECTING IN AROMATIC RICE FARMING IN THE SELUMA REGENCY
Authors: Mulyadi Maheran , Sukiyono Ketut , Sriyoto Sriyoto 
Published: August 2021

The research objective is to determine the level of technical efficiency and the factors that influence the level of technical inefficiency, to analyze the relationship between input and output in the production process of aromatic rice farming in Seluma regency.Total number of respondents were 73 farmers who planted Aromatic rice. The Cobb Douglass of Frontier Stochastic approach was used, whereas for the factors that influence the inefficiency function as the initial answer of the above analysis results of the production function parameter were obtained through the Maximum Likelihood Estimation (MLE), with an LR value of 14.3620 which was higher than t table 99% (2.39). It had a significant effect on the 99% confidence level. It was seem that, there was no meaning that all aromatic rice farmers in the regency were 100% efficient. It could be seen that the MLE log-likelihood value of 29.9157 was higher than the OLS log-likelihood value of 22.7347. The lowest technical efficiency value was achieved by the farmers by 0.55 and the highest by 0.97. In the research area, the majority of the use of production factors was efficient, from 73.34% already in the value of efficiency between 0.90-1.00, meaning that 73.34% had approached the maximum efficiency. The result of the disseminated coefficient (R2) of 0.277 could mean a significant effect of 27.7 percent on the inefficiency variable while the remaining 72.3 percent is influenced by other factors not included in this research variable.