Miracle-dz/UniFAR-FTUs huggingface dataset:
Energy-efficient cooperative resource allocation for OFDMA

Energy is increasingly becoming an exclusive commodity in next generation wireless communication systems, where even in legacy systems, the mobile operators operational expenditure is largely attributed to the energy bill. However, as the amount of mobile traffic is expected to double over the next decade as we enter the Next Generation communications era, the need to address energy efficient protocols will be a priority. Therefore, we will need to revisit the design of the mobile network in order to adopt a proactive stance towards reducing the energy consumption of the network. Future emerging communication paradigms will evolve towards Next Generation mobile networks, that will not only consider a new air interface for high broadband connectivity, but will also integrate legacy communications (LTE/LTE-A, IEEE 802.11x, among others) networks to provide a ubiquitous communication platform, and one that can host a multitude of rich services and applications. In this context, one can say that the radio access network will predominantly be OFDMA based, providing the impetus for further research studies on how this technology can be further optimized towards energy efficiency. In fact, advanced approaches towards both energy and spectral efficient design will still dominate the research agenda. Taking a step towards this direction, LTE/LTE-A (Long Term Evolution-Advanced) have already investigated cooperative paradigms such as SON (self-Organizing Networks), Network Sharing, and CoMP (Coordinated Multipoint) transmission. Although these technologies have provided promising results, some are still in their infancy and lack an interdisciplinary design approach limiting their potential gain. In this thesis, we aim to advance these future emerging paradigms from a resource allocation perspective on two accounts. In the first scenario, we address the challenge of load balancing (LB) in OFDMA networks, that is employed to redistribute the traffic load in the network to effectively use spectral resources throughout the day. We aim to reengineer the load-balancing (LB) approach through interdisciplinary design to develop an integrated energy efficient solution based on SON and network sharing, what we refer to as SO-LB (Self-Organizing Load balancing). Obtained simulation results show that by employing SO-LB algorithm in a shared network, it is possible to achieve up to 15-20% savings in energy consumption when compared to LTE-A non-shared networks. The second approach considers CoMP transmission, that is currently used to enhance cell coverage and capacity at cell edge. Legacy approaches mainly consider fundamental scheduling policies towards assigning users for CoMP transmission. We build on these scheduling approaches towards a cross-layer design that provide enhanced resource utilization, fairness, and energy saving whilst maintaining low complexity, in particular for broadband applications.
Ibu Rumah Tangga: Streotype Perempuan Pengangguran

The building of the household Division the role of structure members. In many ways, the role of women truly are always in the most important constellations in domestic life. Study of Denys Lombard and Geertz among studies that give the conclusion. Along with this, the reality is still a demonstration of counterproductive, as the phrase is still socialized "Women do not need high school high, useless cost alone, anyway will be back also entered the kitchen". Whether it be a Bachelor's degree and then become a housewife or homemaker who holds a Bachelor's degree is worth less? Plus then "create what learning and cost is so expensive, but eventually became a housewife. People think of what high school to achieve a doctoral degree, but ultimately just working at home. Isn't that the same as wasting the science that has been obtained? The kitchen in the family becomes a costly activity often underestimated, while women prefer being a career with a matter of much more expensive kitchen expenses from income the women's careers, should be how the kitchen still work when disepelekan is included by the women themselves? Whether household activities referred to by the profession as a job?
Torsion dependence of the critical current in a superconducting Nb3Sn wire: modeling versus experiment

In large magnets, mechanical forces on the wire rise very high. These forces may degrade the superconducting performance of the wire. The impact of the forces depends on the wire structure. Extensive research has been done on axial and transverse deformations of single strands, but not on torsional deformation. The research in this thesis is an addition to the understanding of the strain sensitivity of the critical current in superconducting Nb3Sn. The first result of the effect of torsion on a Nb3Sn bronze route strand is obtained in parallel magnetic field at the Energy, Materials and Systems group at the University of Twente. The critical currents are measured between an angle of twist of 120° and 840°. Several models have been proposed to calculate the critical current via the scaling law of A. Godeke. To model the effect of the parallel magnetic field, the output of the scaling law was scaled via Schild’s magnetic field orientation dependence. The strains used in this thesis were obtained from a three-dimensional FEM model in COMSOL. Eventually it is concluded that the principal strains should be inserted in the deviatoric strain, which must be used in the scaling law. A rescaling of the law is still necessary and the performance of the three dimensional scaling law should be validated by a detailed mechanical analysis.
Prototype Evaluation of Grid‐Connected Bidirectional Power Conversion System for Storage Battery Systems with Bidirectional Switch Circuit Topology

In recent years, various storage battery systems, such as home battery system, V2H/V2G system, and UPS system, have spread rapidly all over the world. We propose a new power conversion system for use in the previously‐stated storage battery systems. This paper describes operation analysis of this system for bi‐directional power conversion with fundamental grid‐interconnection. Good output follow‐up controllability characteristics of the proposed system are shown through experimental results.
PET-Based Instant Inkjet-Printed 4 × 4 Butler Matrix Beamforming Network

In this paper, a novel planar Butler matrix (BM) utilizing only 3dB3⁢dBhybrid couplers and a crossover are implemented using a low-cost silver-nano inkjet printing technique. Unlike in the conventional design of BM where a phase shifter is required, this novel design does not need a phase shifter to be implemented. However, the use of delicate substrates like polyethylene terephthalate (PET) in the design makes it unique. This is not possible with the conventional thermal curing process, as PET substrate cannot be subjected to an excessively feverish temperature. The results obtained show good return loss and transmission coefficients better than 26.1026. 10 and 23.54dB23. 54⁢dB, respectively, at the center frequency. Similarly, an amplitude imbalance of less than 2.4dB2. 4⁢dB with phase mismatch within ±0.25∘±0.25∘ is achieved at the center frequency. The BM has a −10dB-10⁢dB bandwidth of 24.79% with a beam pattern produced at +13∘+13∘,−40∘-40∘, +40∘+40∘, and −13∘-13∘ when ports 1-4 of the BM are energized.
Academia-industry linkages: Theoretical and empirical review article

Academia-Industry collaboration is the key step towards the growth and development of economy. The academia is a store house of knowledge and innovation whereas the industry is a sector to convert the knowledge and technique into innovative product. The conversion of research and innovation through universities or research institutions to the marketplace for social benefit necessitates significant and ongoing efforts. As a result, the objective of this article's summary is to go through the mode and challenges of long-term partnership between academics and industry. A total of 40 publications were screened, with data retrieved and analyzed qualitatively using a grounded theory technique. The study focuses on the type of existing interactions and the barriers to collaboration amongst the two actors i.e., academia and industry and grouped into four major themes or core variables that encourage collaborative creation. The themes are form of collaboration, channels of collaboration, barriers and motivation for collaboration. Furthermore, the assessment discovered that developing nations continue to have a research coverage gap when compared to developed ones, indicating that educational partnership is underutilized. As a result, it is suggested that action research be used to improve research in developing countries, with special focus paid to A-I collaboration methods.
How do Members of the European Parliament (MEPs) hold the European Central Bank (ECB) Accountable? A descriptive quantitative analysis of three accountability forums (2014-2021)

: The ECB is independent, but it is also accountable to the European parliament (EP). Yet, how the EP has held the ECB accountable has largely been overlooked. This paper starts addressing this gap by providing descriptive statistics of three accountability modalities. The paper highlights three findings. First, topics of accountability have changed. Climate-related accountability has increased quickly and dramatically since 2017. Second, if the relationship between price stability and climate change remains an object of conflict among MEPs, a majority within the EP has emerged to put pressure for the ECB to take a more active stance against climate change, precisely on behalf of its price stability mandate. Third, MEPs engage with the climate topic in very specific ways. There is a gender divide between the climate and the price stability topics. Women engage more actively with climate-related topics. While the Greens heavily dominate the climate topic, parties from the Right dominate the topic of Price stability. Finally, MEPs adopt a more united strategy and a particularly low confrontational tone in their climate-related interventions.
Intermediary Balance Sheets and the Treasury Yield Curve

In Section 2, we developed net long and net short curves from the perspective of a securities dealer, yields at which the dealer would be willing to either net long or net short Treasury bonds. In this section, we extend our model to consider the perspective of a levered Treasury investor (e.g. a hedge fund) financed by a security dealer of the kind considered in that section. The main result is that levered clients will have the same net long and net short curves as the dealer that finances them. That is, the net long curve represents a yield at which the levered client would be willing to buy the Treasury bond, irrespective of its beliefs about the stochastic process driving Treasury yields, and a symmetric result holds for the net short curve. This result occurs in spite of the fact that the levered client is not itself directly affected by balance sheet constraints. This result is important from a general equilibrium perspective. Dealers are never on net long or short a large quantity of Treasury bonds during our sample, relative to the overall Treasury supply. Dealers moved from a net short of roughly 100 hundred billion in 2005 to a net long of 200 hundred billion in 2020. The overall supply of Treasury securities rose from 4 trillion to 22 trillion over the same period. However, dealers intermediate repo and reverse-repo for their levered clients in much greater quantities– on the order of trillions each day. In this section we will argue that the recipients of much of this financing will act like dealers, and subsequently provide some suggestive evidence on this point. Consider the following trading strategy for the dealer: finance a client’s purchase of a Treasury using bilateral repo, use the resulting collateral to raise financing in the tri-party repo market, and reduce CIP activity so that the trade is balance sheet neutral. In a competitive market, the profits of such a strategy are zero:
SEIS AP 4.3 - Sicherheit auf Ebene der Applikation und ihrer Middleware

Today's vehicle has become a very complex good, offering performance and reliability thanks to a sophisticated network of Electronic Control Units. Each year car makers develop new automotive features for use inside and outside of the car. But improving this infrastructure each time adds new costs and overhead to the system. A promising solution resides in the use of Internet Protocol (IP) standards for both on-board and vehicle-to-X communications. With IP over Ethernet, bandwidth and system performance will increase, but so will the security risks for both passenger safety and vehicle system integrity. IP is a well-known and attack-prone technology and the car an easy prey. Communication encryption and static access controls won't be sufficient; more suitable and complex security protocols and infrastructures are required. In this technical report we present a new framework architecture for on-board security, allowing establishment of internal and external secure communication channels and secure runtime environment for automotive applications. The modularization of the framework allows protocol independency and adaptability in terms of performance and security for automotive use cases.
The impact of capital structure on bank profitability: evidence from Vietnam

Abstract The purpose of this research is to determine the effect of capital structure on the profitability of Vietnamese commercial banks. Specifically, it investigates the relationship between capital structure and profitability using an imbalanced panel data set of Vietnamese commercial banks from 2012 to 2018, a critical period for implementing the Prime Minister’s decision (254/QD-TTg) on restructuring the Vietnamese commercial banking system. To depict the capital structure of Vietnamese commercial banks, the authors employ customer deposits and non-deposit liabilities. The study findings, based on a dataset of 30 Vietnamese commercial banks, indicate that customer deposits have a negative effect on bank profitability, whereas non-deposit liabilities have a positive effect on bank profitability. Study findings imply that Vietnamese commercial banks should conduct more thorough and equitable evaluations before lending to assure the quality of both assets and loans. Additionally, it is essential to conduct a more thorough analysis of investment projects and long-term loans to assure the bank’s asset quality. This study contributes to the existing literature by examining how capital structure affects the profitability of Vietnamese commercial banks, an area where prior research has been deficient.
An Optimized Approach for Industrial IoT Based on Edge Computing

The Internet of Things (IoT) is an information network that connects gadgets and sensors to allow new autonomous tasks. The Industrial Internet of Things (IIoT) refers to the integration of IoT with industrial applications. Some vital infrastructures, such as water delivery networks, use IIoT. The scattered topology of IIoT and resource limits of edge computing provide new difficulties to traditional data storage, transport, and security protection with the rapid expansion of the IIoT. In this paper, a recovery mechanism to recover the edge network failure is proposed by considering repair cost and computational demands. The NP-hard problem was divided into interdependent major and minor problems that could be solved in polynomial time by using the Benders decomposition technique and cutting plane approximation. To ensure the nonincreasing character of the Benders upper limit, a local branching method was also added to improve the convergence. Simulation results indicated that the proposed method is superior to the existing method and has better overall performance.
Saudi EFL Teachers’ Self-efficacy in Technology-assisted Language Learning (TALL)

This study employs an explanatory, convergent parallel, mixed methods design to investigate the perceived self-efficacy of 145 Saudi teachers of English as a foreign language (EFL) when engaging in technology-assisted language learning (TALL). These teachers were evaluated on their technological knowledge on four subdimensions, on their pedagogical technology skills on five subcategories, and on five subdimensions related to their self-perceived ability to integrate TALL into English-language classrooms. The triangulated data were recursively collected in three consecutive phases. Self-efficacy was assessed using data obtained from a 48-item TALL survey and from classroom observations and interviews. Participants completed questionnaires on their self-perceived technological self-efficacy, 13 of whom were observed while teaching and subsequently participated in one-on-one interviews. The data were analyzed using the descriptive statistics of means and standard deviations and inferential statistics through one-way repeated-measures analysis of variances (RM ANOVA), along with some statistical tests and Stepwise regression. The data from the observed lessons were subjected to scrupulous and meticulous analysis, and the data from the interviews were recorded, transcribed, coded, and categorized. The findings culled from the survey, lesson observations, and interviews all revealed that Saudi EFL teachers have low self-efficacy in terms of language-learning technological knowledge, language-learning pedagogical technology skills, and ability to effectively integrate technology into EFL instruction. The implications emerging from this study center on the need to develop EFL teachers’ self-efficacy with technology to ensure that language-related digital tools in EFL instruction are used in the most effective pedagogical manner and to their full potential.
A novel application of dry-electrode EEG Device for knowledge discovery in emotional-behavioral disorder studies

As per World Health Organization (WHO), emotional and behavioral disorders affect 10.7% of global population. Studies have shown emotional-behavioral problems having significant positive correlation with obesity and overweight (P<0.01). It has been established in published body of knowledge that obesity and overweight are negatively correlated with psychological comorbidities, emotional and behavioral disorders, and self-esteem. There is an increasing interest in studying the psychological and cognitive neuroscience aspects of obesity. Lately there has been an increase in the number and availability of consumer grade low-cost EEG (electroencephalographic) devices. The objective of this study is two-fold i.e. exploring the research potential of a consumer grade EEG device (Muse) and analyzing the relationship between EEG electrical activity, depression and obesity. The level of depression was quantified through filling the PHQ-9 (patient health questionnaire) and students BMI (body mass index) noted. The EEG experiment consisted of displaying high and low-calorie visual stimuli along with non-food stimuli; with eyes closed in-between. This process was repeated, first in the hunger state and subsequently after taking a high sugar drink. During both experimental states EEG of the 10 student subjects was continuously recorded. On clustering the EEG recordings, sub clusters were discovered among minimally depressed students, but strong clustering was discovered among mildly and moderately depressed obese/overweight students with lower grades. Thus, mood and food-related information was found to be processed differently among subjects requiring monitoring vs. clinical judgment and consumer grade EEG device was found to have the potential to be used for practical research work.
Knowledge transfer model for improving productivity of the cable manufacturing industry: A South African perspective

Industry is faced with increased challenges relating to transferring knowledge due to the complex nature of the manufacturing process. This paper is part of a comprehensive research study to develop a knowledge transfer model for improving productivity. Although knowledge management research generally flourishes, few investigations have been made into the transfer of knowledge in the cable industry. A questionnaire survey was therefore conducted with a total of 135 respondents. Taking the view that cable systems are a production processes, this paper develops a conceptual framework for improving the productivity rate, and affords a preliminary validation. Not much research has surveyed this concept of knowledge transfer in the manufacturing sector. The findings will therefore add to the existing body of knowledge and improve the productivity ratio in cable firms. The model suggests that management can create a working environment which promotes knowledge transfer which requires a large amount of interaction. In addition to this, future research can utilize the model to afford a wider-ranging depiction of the determinants of transferring knowledge.
Evaluation of the Psychometric Properties of Self-Efficacy in Performing Maternal Role for First Time Pregnant Adolescents in Indonesia

The aim of this study was to evaluate the psychometric properties of self-efficacy in performing the maternal role scale for first time pregnant adolescents in Indonesia (SEPMRS-Indonesia). The conceptual framework of this study was based on Bandura’s self-efficacy theory, Rubin’s concept of the maternal role, and a review of the relevant literature. Interviewing were conducted among twelve Indonesian adolescents who were experiencing their first pregnancy. The first draft of seventy-eight items was validated by five experts, sixty-three items remained and were examined for clairty by five of the Indonesian interviewees. Exploratory factor analysis (EFA) and known group techniques were conducted to assess the construct validity. EFA yielded two factors of 60 items which explained 58.85% of the total variance, namely: (1) being able to perform essential activities during pregnancy, and (2) maintaining health and happiness during their pregnancy. The result of known group technique showed a significant mean difference in the scores of SEPMRS-Indonesia between pregnant adults and pregnant adolescents with a first-time pregnancy (p < .01). Reliability analysis was performed including internal consistency and test-retest. The range of overall Cronbach’s alpha coefficients were . 97 to . 98. The test-retest reliability of the sixty items SEPMRS-Indonesia was at an acceptable level (r = .99), meaning this scale is a reliable tool for measuring the performing the maternal role of first time pregnant adolescents. In conclusion, nurses can apply this scale for screening the maternal confidence performance level of pregnant women and identifying appropriate strategies for empowering them to effectively perform their maternal role.
Wavelength-switched phase interrogator for EFPI sensors with polarization self-calibrated

The stability of the demodulation system for extrinsic Fabry-Perot interferometric(EFPI) sensors is significant to dynamic signal recovery. In the wavelength-switched demodulation system, a phase interrogation with a wavelength-switched structure has been presented. Two reflected peaks were in perpendicular polarization direction and switched in the time-domain. However, the operation point of system affected output of the linearly-polarized beams seriously, and the stability of the system decreased and even failed to work. In order to solve this problem, a polarization control unit is added into the system in this paper. The modified demodulation system has been demonstrated to have a higher stability.