Data Workers in AI development by Jonas Chagas Lucio Valente

“…The literature on digital sovereignty comprises a diverse theoretical-methodological universe (Couture, Toupin, 2019), with authors addressing different dimensions of the theme, from the sovereignty of the data generated by groups, such as Indigenous people (Kukutai et al., 2016) to geopolitics of AI (Larssen, 2022). …”
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The Effects of a Sodium Carbonate Catalyst on Calorific Value, Flash Point, Cetane Index, and pH of Tire Pyrolysis Oil by Job Bosire Omwoyo, William Mengo

“…These results will provide theoretical information that will guide its handling and usage as fuel.…”
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General view of the character of the administrative dispute in the first Yugoslav state by Bačanin Vojislav

“…In the first part of the paper, the readers are briefly reminded of the basic theoretical assumptions concerning the concept, subject and classification of administrative dispute. …”
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Anarchy Is What Explains the History of International Relations by William C. Wohlforth

“…History from the late 19th century constitutes the empirical foundation of much theoretical scholarship on international politics. The breakdown of the Concert of Europe and the outbreak of the devastating global conflagration of World War I are the events that sparked the modern study of international relations. …”
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Examining the impact of factors on sustainable tourism practices: an empirical study in the Indian context by Swati Naik, Ruby S. Chanda

“…The research article also provides detailed theoretical contributions, practical implications, and gaps for future research studies.…”
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Souvenirs rétrospectifs de l’Anthropocène : la ville dans la cli‑fi italienne by Lucia Della Fontana

“…This is where cli‑fi, the new genre theorised by Daniel Bloom, comes into play. In order to represent climate change, cli‑fi reactivates dystopian and apocalyptic schemes and sets up a narrative twist that consists in presenting the coming catastrophe as if it had already happened. …”
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The influence of transformational leadership, organizational culture, and employee engagement on turnover intention by Rhian Indradewa, Santiajie Santiajie

“…According to the findings of this study, the variables transformational leadership, organizational culture, employee engagement, and job satisfaction significantly influence turnover intention. The theoretical insight provided by this study is the assumption that transformational leadership, organizational culture, employee engagement and job satisfaction can reduce turnover intention. …”
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Simulation and Experimental Verification of Barrel Finishing of Spiral Bevel Gears Based on the DEM by Yang Shufeng, Gao Yang, Wang Feng, Li Zhisheng, Yu Wentao, Xu Wenbo

“…The tooth surface of spiral bevel gears is a spatial curved surface, and the change of tooth surface roughness can have a significant impact on its meshing performance, directly affecting the vibration, bearing and other performance of the system. A theoretical simulation and an experimental research of an aviation spiral bevel gear is carried out using the parallel spindle type barrel finishing process, a mathematical model of the process motion is established, the formula of cutting speed between abrasive and tooth surface is deduced, and the main factors affecting the result are analyzed; with the help of the Hertz-Mindlin with archard wear model of the EDEM software, the tooth surface wear is simulated; through this process, the surface quality of the disc spiral bevel gear surface is experimentally studied. …”
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Complex Network in Solar Features by Somayeh Taran

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Culturally programmed space of nursery – where we are going? by Marta Śliwa, Marzenna Nowicka

“…Background of the research presented in the text refers to the theoretical perspective of the pedagogy of space, which emphasizes the role of the dialectical relationship between man and space in the formation of individual identity and the development of social relations. …”
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Modeling Analysis and Simulation Verification for Drive Tooth Stress of Rubber Track Wheel by Zihan Zhao, Xihui Mu, Fengpo Du, Jianhua Guo

“…This calculation results can provide theoretical basis for structural optimization of driving teeth and improvement of local rubber materials.…”
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Research on cross-domain trustable blockchain based decentralized DNS architecture by Kai LEI, Fangxing SHU, Lei HUANG, Qichao ZHANG

“…The domain name system (DNS) is an important internet infrastructure.However,current DNS utilizes centralized hierarchical structure with severe dependence on root server,which causes defects such as the risk of single-point failure and the abuse of central rights.Designing new decentralized DNS mainly focuses on transforming the domain name system from a single trust domain which relies on the center to multiple trust domains with the top-level domain name as the root parallel to each other,but also faces cross-domain credible challenges.To design a cross-domain trusted architecture,the concept of separating control and analysis was adopted,and a dual-blockchain DNS architecture was proposed.At data layer,a novel cross-domain verification was designed based on a one-way accumulator verification scheme,with the time complexity of the verification process O(N) reducing to O(1) nearly.The CDBFT algorithm was proposed by combining the DPoS mechanism and the BFT algorithm,whose average throughput reaches 736 TPS.The theoretical derivation and experimental results have demonstrated the advantages of this new DNS architecture on security,performance,and scalability.…”
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Pedagogical situations: interpretation difference by Victoria V. Dobrova

“…The analysis of scientific sources proved that in pedagogical discourse of Russian- and English-speaking authors the term pedagogical situation is used incorrectly, the concept of pedagogical situation is mistaken for other pedagogical categories at the theoretical level, there is no unified approach to its definition. …”
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Process of cracking in reinforced concrete beams (simulation and experiment) by I. N. Shardakov, A. P. Shestakov, I.O. Glot, A.A. Bykov

“…The paper presents the results of experimental and theoretical investigations of the mechanisms of crack formation in reinforced concrete beams subjected to quasi-static bending. …”
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Student youth participation in the development of a comfortable urban environment by Yu. V. Ukhanova, A. E. Zhdanova, K. E. Kosygina

“…The paper presents theoretical and methodological approaches to understanding the urban environment and a comfortable urban environment. …”
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Non-orthogonal multiple access wireless energy harvesting cooperative system by Xiaoping JIN, Qing WU, Wenchao ZHAI, Jianrong BAO

“…Non-orthogonal multiple access (NOMA) has recently attracted wide attention as a promising multiple access technology adopted in 5G cellular networks.In order to improve the spectrum efficiency, coverage and anti-noise performance of NOMA technology, while reduce the energy consumption of the system, a simultaneous wireless information and power transfer (SWIPT) cooperative network uplink NOMA transmission system based on orthogonal index modulation multiple access (IMMA) technology was designed, hereafter was denoted as QIMMA-SWIPT.Specifically, the QIMMA system was formed by multiple remote users, and it improved the spectrum efficiency and anti-noise performance as well as expanded the communication coverage and reduced the energy consumption of the system by decoding and forwarding relay cooperative transmission with SWIPT technology.The theoretical upper bound of the average bit error rate of QIMMA-SWIPT was derived.Simulation and analysis demonstrate that, under the same spectrum efficiency, the bit error rate performance of the cooperative QIMMA-SWIPT system is better than that of the cooperative IMMA-SWIPT and SCMA-SWIPT systems.In addition, the effects of power cut factor and source-to-relay distance on bit error performance were also deeply analyzed.…”
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Indoor terminal localization technology using a single access point based on distributed MIMO networks by Ze LI, Jian ZOU, Zeng HUANG, Zengshan TIAN

“…Regarding the terminal localization in distributed MIMO networks, an indoor terminal localization system using a single access point (AP) based on distributed MIMO networks was proposed.Firstly, the AP’s antennas were arranged at different locations in the room, and the compressed sensing algorithm was used to estimate the angle of departure (AoD) and time of flight (ToF) of the receiving path on each antenna of the terminal device.Secondly, AoDs and ToFs of multiple paths were combined to establish a nonlinear localization model, and an improved Levenberg-Marquardt algorithm was used to solve the problem.Then, theoretical analysis has been examined for the factors that influence the localization error, and the criteria for the antenna layout was provided.Finally, electromagnetic simulation software was used to build simulation environment and conducted the simulation for system verification.Moreover, software-defined radio platforms were used to conduct practical tests.Both simulation and experimental results indicate that the performance of the proposed localization system is superior to existing single-AP localization systems based on natural multipath.…”
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Toward More Efficient and More Secure Last Mile Smart Metering and Smart Lighting Communication Systems with the Use of PLC/RF Hybrid Technology by Piotr Kiedrowski

“…The cost analysis for the proposed solution is also done. Theoretical considerations, contained in the paper, are the result of the author's experience in the design, implementation, and operation of the last mile Smart Grid communication systems, realized in the narrowband PLC or 433/868 MHz radio technology. …”
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Research on scheduled WLAN MAC protocol with failure retries on RoF-DAS architecture by Zheng GUAN, Lei XIONG, Yao JIA, Min HE, Zhijun YANG

“…Aim to reduce control frames consumption and improve the delay performance,a scheduled gated-service polling access (SGPA) mechanism was proposed,in which the total data packets in the buffer at the polling instant were aggregated into a data set,that was transmitted and acknowledged uniformly.Then,an inner-arrival gated-service polling (IAGP) model was proposed to analyze the quantitative relationship between failure retry mechanism and network access performance of the wireless local area network (WLAN) in RoF-DAS.The failure retry mechanism were modeled as the arrival and service process of inner customers in IAGP.Using the Markov chain and generating function method,the closed-form expressions for the quantitative relationship between delay performance and retrial parameters,such as retry times,and the probability of retransmission,were achieved.The simulation results show that the proposed SGPA can achieve a lower delay than IEEE 802.11,and the theoretical performance evaluation calculated by IAGP are identical with the simulation results,which provides an effective evaluation mechanism for the access performance in RoF-DAS WLAN,with inperfect channel and failure retry mechanism.…”
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Measurements of Soil Surface Roughness During the Fourth Microwave Water and Energy Balance Experiment: April 18 through June 13, 2005 by Mi-joung Jang, Kai-Jen Calvin Tien, Joaquin Casanova, Jasmeet Judge

“…In this report, we summarize briefly the theoretical background of surface roughness characteristics and discuss methodology and results of the roughness experiments. …”
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