Miracle-dz/UniFAR-FTUs huggingface dataset:
Distributed optimization for discrete-time multiagent systems with nonconvex control input constraints and switching topologies

This paper addresses the distributed optimization problem of discrete-time multiagent systems with nonconvex control input constraints and switching topologies. We introduce a novel distributed optimization algorithm with a switching mechanism to guarantee that all agents eventually converge to an optimal solution point, while their control inputs are constrained in their own nonconvex region. It is worth noting that the mechanism is performed to tackle the coexistence of the nonconvex constraint operator and the optimization gradient term. Based on the dynamic transformation technique, the original nonlinear dynamic system is transformed into an equivalent one with a nonlinear error term. By utilizing the nonnegative matrix theory, it is shown that the optimization problem can be solved when the union of switching communication graphs is jointly strongly connected. Finally, a numerical simulation example is used to demonstrate the acquired theoretical results.
Contributions to the Methodologies and Technologies for the Intelligent Control-Maintenance-technical Management Systems (ICMMS) in Hydropower Plants

Based on the system thought and GERAM, a methodology and ICMMS (Intelligent Control-Maintenance-technical Management Systems) reference model for hydropower plants are proposed. Because the structures of the hydropower generating process are unchanging, the methodology employs the process-oriented approaches to model the hydropower plants, and the models constructed through this methodology are stable and reusable. The proposed Reference Model grasps the similarities and unchangeabilities of the hydropower plants, therefore the redistributing of the function modules inside the system can be done in a natural and easy way, while the synergies among the components of the system are guaranteed. To implement the ICMMS in hydropower plants, HSAS (Hybrid Smart Automation System) is proposed in which integrates the conventional controllers and fieldbus based components under fully distributed system architecture. In the maintenance domain, the concept of Condition Monitoring is clearly defined, and related technologies for hydropower plants are summarized and analyzed. The condition monitoring system is integrated into the ICMMS under the Reference Model proposed above. In the technical management domain, the performance evaluation methods and implement system is a lacuna item to the HGUs (Hydroelectric Generating Units), however it is indispensable for ICMMS. Some important concepts, indexes, criterions and methodologies for the performance evaluation on HGUs are proposed. An economic performances evaluation system for HGUs is proposed, with which the efficiency state, the level of operation management, and the maintenance state of an HGU can be measured through qualitative indexes. A real test case illustrated effectiveness of the method. Based on this method, a new maintenance strategy, EBM (Economic performance Based Maintenance) is proposed and illustrated through a case study. As a contribution to the control domain, a new method, DAA (Disturbance Attenuation Approach), is proposed to design hydraulic turbine governors. Finally, some philosophical thoughtlets of the author for the system integration are presented.
Impact of reference model for project management and project management maturity models on performance: an exploratory study in information technology projects

Project management maturity and project management reference models have been widely adopted on information technology (IT) companies. This article aims to analyze the impact of project management maturity level and adopt reference models on IT projects performance (success). A quantitative research approach was used, including a survey with 51 professionals from the sector. Results showed positive impact between project management maturity level and meeting of stakeholders’ demands. A positive statistical correlation was also found in firms that develop information technology projects through PMBoK adoption concerning meeting requirements and meeting of stakeholders’ demands.
Potential effect and mechanism of action of Zataria multiflora in liver disorders

Introduction and Objective. Zataria multiflora Boiss or Iranian thyme (Lamiancea family) is traditionally used for the management of liver disorders. Due to the traditional importance of Z. multiflora in liver diseases, the aim of the review is to evaluate the preventive and therapeutic effects of Z. multiflora in liver diseases. Review methods. Information was obtained from original peer reviewed articles published in scientific sources up to September 2021. Google Scholar, PubMed, Scopus, AMED, Cochrane Library electronic literature databases were investigated by the key words of ‘Zataria multiflora’, ‘liver’, ‘hepato-protective’, ‘ROS’, ‘oxidative stress’, and ‘clinical trial’. The collected data aresummarized, categorized, analyzed, and discussed. Brief description of the state of knowledge. The result of one clinical trial showed the efficacy and safety of Z. multiflora powder in non-alcoholic fatty liver diseases. Z. multiflora powder and its extracts reduced the liver oxidative stress induced by drugs, environmental toxins, cyst hydatid, and endogenous factors. The antioxidant activity of Z. multiflora essential oil is higher than its extracts or powder, due to the high content of thymol and carvacrol in its oil. Reactive oxygen species and oxidative stress play important roles in liver diseases; therefore, Z. multiflora and its extracts are regarded as natural antioxidants protecting the liver against free radicals. Conclusion. Although there is one clinical study on Z. multiflora in non-alcoholic fatty liver diseases, large clinical trials are required to evaluate the efficacy and safety of Z. multiflora in liver diseases.
Study on Influence of Tube Arrays on Fluid Elastic Instability

The tube bank is used in boilers, heat exchangers in power plants and steam generators in nuclear plants. These tubes sometimes vibrate violently and come to the fatigue failure due to the flow induced vibration which is caused by the cross flow. This phenomenon is that the large vibrations arise at the critical flow velocity and it is called fluid elastic instability. However the relation between the onset velocity of fluid elastic instability and the tube array's geometry has not been clarified sufficiently. There is a few reference related to the relation between the pitch to diameter ratio and the onset velocity even in the lattice arrays. In this paper, the influence of tube arrays on fluid elastic instability is examined by experiments. As a result, it is clarified that the tube vibrations become large as T/D increases and L/D decreases, and the tube vibrations strongly depend on the dynamic characteristics of tubes such as the natural frequency and the damping ability.
A STUDY OF DROUGHT SITUATION IN EL-NIÑO YEARS OVER CENTRAL INDIA HOMOGENEOUS REGION

1. Maximum amount of rainfall in Central India is received during the summer monsoon (June September) season. Walker Gilbert (1924 & 1928) pointed out the out-of-phase pressure relationship in the south Pacific/ South American region with the Indonesian/Indian Ocean region. Bjerkenes (1969) suggested that the Southern Oscillation (S.O.) had a role in the redistribution of heat sources and sinks in the equatorial region which in turn influenced the related general circulation over the IndoPacific region. Sikka (1980) first suggested that during ElNino year’s Indian monsoon performed below normal. Mooley and Paolino (1989) found that the response of Indian monsoon was associated with the changes in sea surface temperature over the eastern south equatorial Pacific. Mooley (1997) suggested that El-Nino also influenced the occurrence of rainfall over India. Walker and Bliss (1932) had also found that drought in India tended to occur with S.O.
Thermal comfort as part of a self-regulating system

From studies of the behaviour of children in classrooms and of workers in offices, this article suggests that we should pay more attention to the way people react positively to their thermal environment, by changes of clothing, changes of metabolic rate and modifications to the environment itself. The reactions will be constrained by social pressures, but the whole will tend towards a self-regulating system. Design might therefore concentrate on how to allow for the control mechanisms to operate rather than on trying to establish optimum indoor climates, the authors suggest.
Design and modelling tools for DC HTS cables for the future railway network in France

The use of high-temperature superconducting (HTS) cables in power systems increases the transmission capacity, whereas reducing the volume of the installation. In addition, in high current applications, HTS cables considerably reduce power losses, right-of-ways and total system mass. This paper presents different multi-physics studies to be performed to accurately design the direct current (DC) HTS cables for the future railway network planned by the French company SNCF. The process used to design DC cables for high operating current (between 5 kA and 20 kA at 1750 V) made of commercial (RE)BaCuO tapes is presented. In this design process, the critical current density dependence J c(B, θ, T) of the superconducting tapes, the thermal properties of the materials used as well as different cable cooling configurations are considered. Finally, we discuss the selection of the appropriate cooling configuration to ensure adequate cooling of the cable.
Numerical Investigation of a Crossflow Jet in a Rectangular Microchannel

The present numerical study is conducted in three dimensional to investigate the crossflow of an external round jet and a horizontal stream of microchannel flow. The results of heat transfer performance for the cases with and without transverse jet are compared. The patterns of different crossflow jet were analyzed to understand the flow and heat transfer characteristics. The effect of jet nozzle position on the heat transfer is investigated. Generally, the heat transfer performance increases with the jet Reynolds number. However, some cases of weak jet are found to cause lower heat transfer rate relative to the case without external jet. When vertical weak jet encounter strong horizontal flow, the horizontal flow is dominant that the jet cannot reach the microchannel bottom wall but imposes resistance to the horizontal flow. The investigation on the jet nozzle location shows that the jet nozzle location closer to the channel inlet gives better heat transfer performance.
OODA-RL: A Reinforcement Learning Framework For Artificial General Intelligence To Solve Open World Novelty

Faster adaptability to open-world novelties by intelligent agents is a necessary factor in achieving the goal of creating Artificial General Intelligence (AGI). Current RL framework does not considers the unseen changes (novelties) in the environment. Therefore, in this paper, we have proposed OODA-RL, a Reinforcement Learning based framework that can be used to develop robust RL algorithms capable of handling both the known environments as well as adaptation to the unseen environments. OODA-RL expands the definition of internal composition of the agent as compared to the abstract definition in the classical RL framework, allowing the RL researchers to incorporate novelty adaptation techniques as an add-on feature to the existing SoTA as well as yet-to-be-developed RL algorithms.
A novel compact ultrawideband (UWB) bandpass filter using multiple‐mode resonator

In this letter, a novel compact ultrawideband (UWB) bandpasss filter (BPF) using the proposed multiple‐mode resonator (MMR) is presented. The MMR is composed of a conventional microstrip hairpin resonator of which the two arms are connected by a section of microstrip line and a short‐circuited point located in the middle of the hairpin resonator. Its first three resonant modes can be utilized to construct the UWB band. The tapped feeding structure has been used to realize desired tight couplings for designing the UWB BPF. The filter has been investigated numerically and experimentally. Both the simulated and measured results show that the filter has good performance, such as compact size, low‐insertion loss, small group delay variation, and improved out‐of‐band performances. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1662–1664, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24424
Mealworm (Tenebrio molitor) potencial in fish nutrition: a review

The creation of aquatic organisms it is constantly growing and with this comes the need to meet this demand with the increased production of inputs such as feed for aquaculture. Fish nutrition is mainly characterized by the use of fish meal and oil for the manufacture of rations for their food. Soybean bran is the second most used ingredient as a source of protein in the production of feed for aquaculture. However, these ingredients compete with other feed segments, increasing cost or reducing market availability. Therefore, alternative sources of protein must be studied and developed to meet this demand. In this sense, insects present themselves as sources of high quality protein, in addition to fatty acids, vitamins and minerals. Although there is a problem with large-scale production to meet the demand of the feed market, the ease of breeding certain species of insects is capable of making this reality possible. Thus, insects can be a likely alternative protein source in fish feed, replacing conventional sources. This review aims to evaluate the inclusion of mealworm in the fish diet, in terms of performance and discuss the results obtained.
Memories and self-efficacy among adults with attention deficit disorder symptoms

ABSTRACT Research has already demonstrated the impact of positive and negative social interactions on one’s self-efficacy. In particular, empowering or degrading messages from school teachers may have a significant long-term effect on students’ self- efficacy. This is especially pertinent to students with ADHD symptoms, since they face increased challenges during childhood in school environment. The goals of the present study are to examine the relationships between memories of adults with ADHD and their social support and self-efficacy. 319 participants (253 (79.3%) females) reported their positive and negative memories of ‘good’ and ‘bad’ teachers, as well as current levels of perceived social support, ADHD symptoms’ severity and self-efficacy. Results indicated a serial mediation model, in which the positive and negative memories, family support and peer support mediated the relations between ADHD symptoms and self-efficacy. In addition, ADHD symptoms predicted fewer positive memories, and more negative memories, and social support mediated their relations with self-efficacy.
General model for the kinetics of solute diffusion at solid-solid interfaces

Solute diffusion through solid-solid interfaces is paramount to many physical processes. From a modeling point of view, the discontinuities in the energy landscape at a sharp interface represent difﬁculties in predicting solute diffusion that, to date, have not been solved in a consistent manner across length scales. Using an explicit ﬁnite volume method, this work is the ﬁrst to derive numerical solutions to the diffusion equations at a continuum level while including discrete variations in the energy landscape at a bicrystal interface. An atomic jump equation consistent with atomistic descriptions is derived and scaled up into a compendium of model interfaces: monolayer energy barriers, monolayer interfacial traps, multilayered traps, and heterogeneous interfaces. These can track solute segregation behavior and long-range diffusion effects. We perform simulations with data for hydrogen diffusion in structural metals, of relevance to the assessment of the hydrogen embrittlement phenomenon, and point defects in electronic devices. The approach developed represents an advancement in the mathematical treatment of solute diffusion through solid-solid interfaces and an important bridge between the atomistic and macroscopic modeling of diffusion, with potential applications in a variety of ﬁelds in materials science and physics.
Regulating parameters of electromagnetic micromachined vibrating ring gyroscope by feedback control

Presented is a method that can regulate the resonant frequency and the quality factor ( Q -factor) of an electromagnetic vibrating ring gyroscope by electronic tuning. A novel circuit is designed to control the drive mode of the electromagnetic vibrating ring gyroscope. The circuit consists of an amplifier and a phase shifter used for feedback control. The frequency split can be reduced and the Q -factor can be improved through this method. Experimental results show that the frequency shift of the drive mode can be from -6.41 to 6.38-Hz when the phase of the feedback signal shifts -90- compared with the drive signal. The Q -factor in the air can be improved from 522 to 821 when the phase of the feedback signal is not shifted. The sensitivity tests show the effectiveness of the control circuit.
Inequalities for Jensen–Sharma–Mittal and Jeffreys–Sharma–Mittal Type f–Divergences

In this paper, we introduce new divergences called Jensen–Sharma–Mittal and Jeffreys–Sharma–Mittal in relation to convex functions. Some theorems, which give the lower and upper bounds for two new introduced divergences, are provided. The obtained results imply some new inequalities corresponding to known divergences. Some examples, which show that these are the generalizations of Rényi, Tsallis, and Kullback–Leibler types of divergences, are provided in order to show a few applications of new divergences.
Internship proposal Synchronization in Stochastic Games

Finite-state stochastic games combine the stochastic aspects of Markov chains and the interactive aspects of two-player games. In a traditional view, Markov chains generate a probability measure over sequences of states (called paths), and questions such as “What is the probability that a path reaches a given state? ” can be solved. In a more recent view, Markov chains generate a sequence of probability distributions di : Q → [0, 1] over their state space Q, where di(q) is the probability that the Markov chain is in state q ∈ Q after i execution steps. This distribution-based view has been considered recently in works on Markov chains and Markov decision processes (MDPs) [3, 1, 2], as a model of largepopulation systems consisting of several copies of the same process (molecules, sensors, bacteria, etc.). The dynamics of the system is described by a finite-state stochastic process, and a distribution di(q) is interpreted as the pourcentage of the population that is in state q at step i. In this context, synchronization properties require that the sequence of probability distributions tends to accumulate all the probability mass in a given set T ⊆ Q of target states, that is all process instances synchronize in T . They generalize synchronizing properties of finite automata [4]. Different modes of synchronization can be defined, which require for instance the synchronization to occur once, or infinitely often. The synchronization modes are reminiscent of the traditional reachability, safety, Büchi, and coBüchi objectives [2]. In this internship (with possible continuation as a phd thesis), we consider stochastic games in the distribution-based view. We are looking for algorithmic solutions and structural properties of stochastic games where the objective of one of the player is given by a synchronization property. Several theoretical questions can be investigated and the solutions and heuristics can possibly lead to prototype implementations.
Juvenile of Yellowtail, Seriola dorsalis fed diets from partial to total fish oil and fish meal replacement

Andrea Manriquez-Patiño1, Guillermo Paredes-Gutierrez1, Arleta Krystyna Skrzynska2,3 , Aurora Tinajero3, José Antonio Mata-Sotres4 , Bruno Cavalheiro Araújo3,5, María Teresa Viana3 1 Bioingeniería, Facultad de Ingeniería, Arquitectura, y Diseño, Universidad Autónoma de Baja California, Ensenada México. 2 Department of Biology, Faculty of Marine and Environmental Sciences, Campus de Excelencia Internacional del Mar (CEI-MAR), University of Cádiz, 11519 Puerto Real, Cádiz, Spain. 3 Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California (UABC), km 107 carretera Tij/Eda, 22860 Ensenada, Baja California, México. 4 CONACYT-Instituto de Investigaciones Oceanológicas, UABC, Ensenada, BC, México. Dirección actual UAM Xochimilco, CD México. 5 Cawthron Institute, Nelson, 7010, New Zealand.
Estruturas de sincronismo monofásica e trifásica baseadas no filtro de Kalman

This paper proposes single-phase and three-phase synchronization methods based on the optimum filtering theory. The Kalman filter is used for the generation of the synchronization signals. The proposed methods incorporate, explicitly, in the problem formulation the presence of harmonics, voltage unbalance, measurement noise, transients and frequency deviation. These perturbations degrade the performance of many synchronization structures presented in literature. The formulation presented here makes the synchronization signals be less sensitive to these perturbations. It is also shown that the proposed methods can be helpfull to provide information about amplitude, instantaneous phase and frequency of the grid voltages, that can be usefull for purposes of power quality analysis. Furthermore, the Kalman filter provides a way to obtain a good compromise between transient response and measurement noise rejection for the synchronization signals. Experimental results using a DSP TMS320F2812 are presented to show the performance of the proposed schemes.
Multi-Stakeholder Partnerships (MSPs) for Health Service Delivery in Ethiopia

The past few decades have witnessed the integration of non-state actors in public service delivery. Partnerships as a form of governance involve state and non-state actors in public policy formulation and implementation. The widespread poverty and severe health problems in Ethiopia demand an increasing role of a wide range of actors outside of the state. In the past few years, the Ethiopian government has been actively seeking collaborative arrangements for health service delivery that are aimed at ensuring access to basic and quality health service delivery. The paper will focus on studying multi-stakeholder partnerships (MSPs) for health service delivery as a form of governance, hence we focus on the internal dynamics of MSPs for health service delivery and provide an understanding of state and non-state interaction in these governance networks. The case analysis is based on a specific MSP for health service delivery at the local level.