Miracle-dz/UniFAR-FTUs huggingface dataset:
Real-Time Emulation of a Hydrogen-Production Process for Assessment of an Active Wind-Energy Conversion System

This paper presents the real-time emulation of a hydrogen-production process for assessment of an active wind- energy conversion system. The hardware-in-the-loop emulator of the electrolyzer consists of a power-electronic stage and a control stage. In the control board, the algorithmic equations of the electrolyzer modeling and its control should be implemented, as well as the emulator's power converter control. The causal ordering graph is used to model the electrolyzer and its auxiliary equipment. This model is capable of characterizing the relations among the different physical quantities and can be used to design the control system, ensuring an efficient and reliable operation of the electrolyzer. The proposed control method can manage the power and hydrogen flows. The simulation results have highlighted the variation domains and the relations among different physical quantities. The experimental results of the real-time emulation is based on a PHOEBUS advanced alkaline electrolyzer and shows the same electrical characteristics in real time with hardware.
(K − 1)-Kernels In Strong K-Transitive Digraphs

Abstract Let D = (V (D),A(D)) be a digraph and k ≥ 2 be an integer. A subset N of V (D) is k-independent if for every pair of vertices u, v ∈ N, we have d(u, v) ≥ k; it is l-absorbent if for every u ∈ V (D) − N, there exists v ∈ N such that d(u, v) ≤ l. A (k, l)-kernel of D is a k-independent and l-absorbent subset of V (D). A k-kernel is a (k, k − 1)-kernel. A digraph D is k-transitive if for any path x0x1 ・ ・ ・ xk of length k, x0 dominates xk. Hernández-Cruz [3-transitive digraphs, Discuss. Math. Graph Theory 32 (2012) 205-219] proved that a 3-transitive digraph has a 2-kernel if and only if it has no terminal strong component isomorphic to a 3-cycle. In this paper, we generalize the result to strong k-transitive digraphs and prove that a strong k-transitive digraph with k ≥ 4 has a (k − 1)-kernel if and only if it is not isomorphic to a k-cycle.
An Ultra-Wideband High-Linearity CMOS Mixer With New Wideband Active Baluns

A 2-11-GHz high linearity CMOS down-conversion mixer with wideband active baluns using 0.18-mum CMOS technology is demonstrated in this paper. The mixer employs a folded cascode Gilbert cell topology and on-chip broadband active baluns. The folded cascode approach is adopted to increase the output swing, and the linearity is enhanced by a harmonic distortion canceling technique derived from the harmonic balance analysis. The proposed configuration shows the highest IIP3 and IP1 dB, and exhibits more compact size than most published studies. A broadband active balun is used to generate wideband differential signals, together with the derivation of a closed-form expression for the phase imbalance. This single-ended wideband mixer has the conversion gain of 6.9plusmn1. 5 dB, input 1-dB compression point (IP1 dB) of - 3.5 dBm, single-sideband noise figure of 15.5 dB, and third-order input intercept point (IIP3) of 6.5 dBm under the power consumption of 25.7 mW from a 1.8-V power supply. The chip area is 0.85 x 0.57 mm2.
THE ENABLING ROLE OF ELECTRONIC INTEGRATION AND ABSORPTIVE CAPACITY ON INTERORGANIZATIONAL COST MANAGEMENT IN SUPPLY CHAINS General Topics

The need to remain competitive is driving firms to increasingly seek competitive advantages by collaborating more intensely with their partner firms. One aspect of collaboration between firms is interorganizational cost management, where the focus is on specifically managing costs from both a focal firm and a partner firm perspective. This study integrates literature from the information systems, managerial accounting, and operations management fields to create a multidisciplinary view of interorganizational cost management (IOCM) as an IT-enabled organizational capability. We develop a research model that focuses on both the antecedents (electronic integration, absorptive capacity, and internal cost management) and the consequences (benefits) of IOCM. Our model is tested from a sample of managerial accountants who work in firms that are a part of a supply chain. The results show that IOCM leads to specific firm benefits for the focal firm, and that electronic integration and a firm’s absorptive capacity for IOCM are both direct antecedents to the IOCM capability.
Identification of an estrogen receptor α non covalent ubiquitin-binding surface: role in 17β-estradiol-induced transcriptional activity

Summary Ubiquitin (Ub)-binding domains (UBDs) located in Ub receptors decode the ubiquitination signal by non-covalently engaging the Ub modification on their binding partners and transduce the Ub signalling through Ub-based molecular interactions. In this way, inducible protein ubiquitination regulates diverse biological processes. The estrogen receptor alpha (ER&agr;) is a ligand-activated transcription factor that mediates the pleiotropic effects of the sex hormone 17&bgr;-estradiol (E2). Fine regulation of E2 pleiotropic actions depends on E2-dependent ER&agr; association with a plethora of binding partners and/or on the E2 modulation of receptor ubiquitination. Indeed, E2-induced ER&agr; polyubiquitination triggers receptor degradation and transcriptional activity, and E2-dependent reduction in ER&agr; monoubiquitination is crucial for E2 signalling. Monoubiquitinated proteins often contain UBDs, but whether non-covalent Ub–ER&agr; binding could occur and play a role in E2–ER&agr; signalling is unknown. Here, we report an Ub-binding surface within the ER&agr; ligand binding domain that directs in vitro the receptor interaction with both ubiquitinated proteins and recombinant Ub chains. Mutational analysis reveals that ER&agr; residues leucine 429 and alanine 430 are involved in Ub binding. Moreover, impairment of ER&agr; association to ubiquitinated species strongly affects E2-induced ER&agr; transcriptional activity. Considering the importance of UBDs in the Ub-based signalling network and the central role of different ER&agr; binding partners in the modulation of E2-dependent effects, our discoveries provide novel insights into ER&agr; activity that could also be relevant for ER&agr;-dependent diseases.
Food Adulteration and Bio-Magnification of Environmental Contaminants: A Comprehensive Risk Framework for Bangladesh

This article thoroughly investigates the severity of the prevailing environmental conditions and evaluates the resulting threats to food intake and public health in Bangladesh by establishing relationship among different contaminant transfer mechanisms to human. It describes the potential of certain contaminants to get bio-magnified through the food chain. A database was prepared on a number of contaminants in the study area that are responsible for rendering different foods vulnerable to produce long term or short-term health effects. Contaminants that have been identified in the food sources were categorized in a continuum based on their allowable daily intake. A protocol has been developed which will enable the assessment of the potential of a contaminant to bio-magnify through food chain to understand the contribution of a contaminant on different levels of food chain. The study also provides a detailed assessment of the public health risks associated with direct ingestion of adulterated foods and intake of contaminants through food chain or water intake. Their intake to human body was quantified, which provides an indication of the toxicity level of the contaminants and possible impact on human health. The traditional four steps of risk assessment technique have been employed for some model contaminants (including metals, organic contaminants and food adulterants). Additionally, existing rules and regulations of Bangladesh were identified with possible limitations that can play significant role in controlling the food adulteration practices and concentration of contaminants in the environment and human body. Finally, a holistic approach to necessary interventions has been prescribed at policy, treatment and evaluation level to prevent the water pollution and food adulteration. Thus, a much-needed comprehensive framework is prescribed in this study to promote safety in food handling, preserve environment and improve health-based strategies in Bangladesh.
Ju l 2 00 4 Momentum Maps and Morita Equivalence

We introduce quasi-symplectic groupoids and explain their relation with momentum map theories. This approach enables us to unify into a single framework various momentum map theories, including ordinary Hamiltonian G-spaces, Lu’s momentum maps of Poisson group actions, and the group-valued momentum maps of Alekseev–Malkin–Meinrenken. More precisely, we carry out the following program: (1) We define and study properties of quasi-symplectic groupoids. (2) We study the momentum map theory defined by a quasi-symplectic groupoid Γ ⇉ P . In particular, we study the reduction theory and prove that J(O)/Γ is a symplectic manifold for any Hamiltonian Γ-space (X J → P, ωX) (even though ωX ∈ Ω(X) may be degenerate), where O ⊂ P is a groupoid orbit. More generally, we prove that the intertwiner space (X1 ×P X2)/Γ between two Hamiltonian Γ-spaces X1 and X2 is a symplectic manifold (whenever it is a smooth manifold). (3) We study Morita equivalence of quasi-symplectic groupoids. In particular, we prove that Morita equivalent quasi-symplectic groupoids give rise to equivalent momentum map theories. Moreover the intertwiner space (X1 ×P X2)/Γ depends only on the Morita equivalence class. As a result, we recover various well-known results concerning equivalence of momentum maps including the Alekseev–Ginzburg–Weinstein linearization theorem and the Alekseev–Malkin– Meinrenken equivalence theorem between quasi-Hamiltonian spaces and Hamiltonian loop group spaces.
Using Formal Concept Analysis to support change analysis

Software needs to be maintained and changed to cope with new requirement, existing faults and change requests as software evolves. One particular issue in software maintenance is how to deal with a change proposal before change implementation? Changes to software often cause unexpected ripple effects. To avoid this and alleviate the risk of performing undesirable changes, some predictive measurement should be conducted and a change scheme of the change proposal should be presented. This research intends to provide a unified framework for change analysis, which includes dependencies extraction, change impact analysis, changeability assessment, etc. We expect that our change analysis framework will contribute directly to the improvement of the accuracy of these predictive measures before change implementation, and thus provide more accurate change analysis results for software maintainers, improve quality of software evolution and reduce the software maintenance effort and cost.
A Reliable, Safe, and Secure Run-Time Platform for Cyber Physical Systems

This paper introduces a global research collaboration project performed by a Korean-USA research group. The project aims at designing and implementing a run-time platform for reliable, safe, and secure cyber physical systems (CPS). The project consists of layered sub-projects including SoC design for reliable systems, virtualized software architecture for dynamically upgradable systems, and middleware architecture for safety critical networked applications. This paper describes the objectives of each sub-project and the current accomplishments.
Immune Defense and Host Life History

Recent interest has focused on immune response in an evolutionary context, with particular attention to disease resistance as a life‐history trait, subject to trade‐offs against other traits such as reproductive effort. Immune defense has several characteristics that complicate this approach, however; for example, because of the risk of autoimmunity, optimal immune defense is not necessarily maximum immune defense. Two important types of cost associated with immunity in the context of life history are resource costs, those related to the allocation of essential but limited resources, such as energy or nutrients, and option costs, those paid not in the currency of resources but in functional or structural components of the organism. Resource and option costs are likely to apply to different aspects of resistance. Recent investigations into possible trade‐offs between reproductive effort, particularly sexual displays, and immunity have suggested interesting functional links between the two. Although all organisms balance the costs of immune defense against the requirements of reproduction, this balance works out differently for males than it does for females, creating sex differences in immune response that in turn are related to ecological factors such as the mating system. We conclude that immune response is indeed costly and that future work would do well to include invertebrates, which have sometimes been neglected in studies of the ecology of immune defense.
Factors affecting hospital information system acceptance by caregivers of educational hospitals based on technology acceptance model (TAM): A study in Iran

Technology acceptance model (TAM) is a valid model for predicting the technology acceptance by the users. This study aimed to identify factors affecting hospital information system acceptance by caregivers (physicians and nurses). This descriptive - analytical study was conducted in 2015. The research population was the physicians and nurses working in public hospitals of the city of BandarAbbas in Iran. The convenient sampling method was used to select 172 persons. Data collection tool was a questionnaire which its validity and reliability was measured. Data were entered within SPSS software and analyzed using descriptive and inferential statistics and the Spearman’s rho test. Direct and positive relationship exist between the variables of image in using IT applications and perceived usefulness (R=0.26, P<0.01). The level of computer skills had a direct positive effect on perceived ease of use (R=0.40, P<0.01) and behavioral intention (R=0.30, P<0.01). Furthermore, subjective norms on ly had a positive direct effect on perceived ease of use (R=0.65, P<0.001). Perceived ease of use had no effect on behavioral intention, but had a direct positive effect on PU (R=0.46, P<0.001). Also, perceived usefulness had a positive direct effect on be havioral intention (R=0.61, P<0.001). Image in using IT application, the level of computer skills, subjective norms, Perceived ease of use, and perceived usefulness regarding of the use of IT application had a more prominent role in the acceptance of hospital information system by the users. Therefore, it is necessary to consider these variables while designing, purchasing, or revising hospital information systems .
Communication in Distributed Software Development: A Preliminary Maturity Model

This paper presents a preliminary communication maturity model named C2M. The C2M model aims to help organizations to identify the maturity of communication-related aspects and processes providing a tool to reveal what practices need to be improved. The model is composed of three maturity areas respectively organized into factors, goals, and practices. It has been preliminarily evaluated in two steps. First, two focus group meetings were conducted in two organizations aiming to identify how fit the model is to attend its purpose. Second, a diagnosis activity was conducted in two organizations aiming to observe how the model is perceived when used in practice. The experts who participated in the diagnosis activity reported that the application of the model allowed them to become aware of communication issues their teams were facing that they had no knowledge of. Their positive feedback is an initial indication that the model is fit to point out the maturity of communication processes and practices in distributed software projects.
Storage Architectures for Digital Imagery

Rapid advances in computing and communication technologies coupled with the dramatic growth of the Internet has led to the emergence of a wide variety of multimediaapplications such as distance education, online virtual worlds, immersive telepresence, and scienti(cid:12)c visualization. These applications di(cid:11)er from conventional distributed applications in at least two ways. First, they involve storage, transmission, and processing of heterogeneous data types|such as text, imagery, audio, and video|that di(cid:11)er signi(cid:12)cantly in their characteristics (e.g., size, data rate, real-time requirements, etc.). Second, unlike conventional best-e(cid:11)ort applications, these applications impose diverse performance requirements|for instance, with respect to timeliness|on the networks and operating systems. Unfortunately, existing networks and operating systems do not di(cid:11)erentiate between data types and o(cid:11)er to all applications a single class of best-e(cid:11)ort service. Hence, to support emerging multimedia applications, existing networks and operating systems need to be extended along several dimensions. In this chapter, we discuss the issues involved in designing storage servers that can support such a diversity of applications and data types. First, we describe the speci(cid:12)c issues that arise in designing a storage server for digital imagery and then discuss the architectural choices for designing storage servers that e(cid:14)ciently manage the storage and retrieval of multiple data types. Note that since it is di(cid:14)cult, if not impossible, to foresee requirements imposed by future applications and data types, a storage server that supports multiple data types and applications will needs to facilitate easy integration of new application classes and data types. This dictates that the storage server architecture be extensible, allowing it to be easily tailored to meet new requirements.
Evolutionary Pathways of the Pandemic Influenza A (H1N1) 2009 in the UK

The emergence of the influenza (H1N1) 2009 virus provided a unique opportunity to study the evolution of a pandemic virus following its introduction into the human population. Virological and clinical surveillance in the UK were comprehensive during the first and second waves of the pandemic in 2009, with extensive laboratory confirmation of infection allowing a detailed sampling of representative circulating viruses. We sequenced the complete coding region of the haemagglutinin (HA) segment of 685 H1N1 pandemic viruses selected without bias during two waves of pandemic in the UK (April-December 2009). Phylogenetic analysis showed that although temporal accumulation of amino acid changes was observed in the HA sequences, the overall diversity was less than that typically seen for seasonal influenza A H1N1 or H3N2. There was co-circulation of multiple variants as characterised by signature amino acid changes in the HA. A specific substitution (S203T) became predominant both in UK and global isolates. No antigenic drift occurred during 2009 as viruses with greater than four-fold reduction in their haemagglutination inhibition (HI) titre (“low reactors”) were detected in a low proportion (3%) and occurred sporadically. Although some limited antigenic divergence in viruses with four-fold reduction in HI titre might be related to the presence of 203T, additional studies are needed to test this hypothesis.
Preemption concepts , Rhealstone Benchmark and scheduler analysis of Linux 2 . 4 Arnd

In this paper we examine the soft realtime capabilities of the Linux kernel 2.4 and realtime enhancements. We discuss and visualize in the form of PDLT (process dispatch latency time) diagrams how the MontaVista Preemption Patch 6 for Linux 2.4. 2 preempts a Linux system call executing in kernel mode. In similar diagrams we show the effect of introducing Conditional Preemption Points, like Ingo Molnar ́s and Andrew Morton ́s Low Latency Patches do. To detect possible performance changes we measure some programs of the Rhealstone Benchmark on Linux kernels and variants. We examine the behaviour of the Linux scheduler when scheduling a SCHED FIFO process varying the number of SCHED OTHER load processes ready to run.
LOCAL ADAPTATION, PHENOTYPIC DIFFERENTIATION, AND HYBRID FITNESS IN DIVERGED NATURAL POPULATIONS OF ARABIDOPSIS LYRATA

Selection for local adaptation results in genetic differentiation in ecologically important traits. In a perennial, outcrossing model plant Arabidopsis lyrata, several differentiated phenotypic traits contribute to local adaptation, as demonstrated by fitness advantage of the local population at each site in reciprocal transplant experiments. Here we compared fitness components, hierarchical total fitness and differentiation in putatively ecologically important traits of plants from two diverged parental populations from different continents in the native climate conditions of the populations in Norway and in North Carolina (NC, U.S.A.). Survival and number of fruits per inflorescence indicated local advantage at both sites and aster life‐history models provided additional evidence for local adaptation also at the level of hierarchical total fitness. Populations were also differentiated in flowering start date and floral display. We also included reciprocal experimental F1 and F2 hybrids to examine the genetic basis of adaptation. Surprisingly, the F2 hybrids showed heterosis at the study site in Norway, likely because of a combination of beneficial dominance effects from different traits. At the NC site, hybrid fitness was mostly intermediate relative to the parental populations. Local cytoplasmic origin was associated with higher fitness, indicating that cytoplasmic genomes also may contribute to the evolution of local adaptation.
Generative Systems in architecture design

Generative synthesis systems are systems of mechanisms that are combine together, and are capable of creating alternative compositions that address design problems, express design view, and additionally, offer a huge scope of satisfactory solutions. The system is developed form one side to support architects in designing sustainable buildings, from another side allows uncover new forms of shapes and meanings including architecture, engineering, design, art. The generative synthesis system provides a mechanism for generating design alternatives. If efficiency criteria such as daylight, solar heat, real state preferences established and solutions are modeled and analyzed, then architects or design team can compare design alternatives and better pilot the design space. The system lends itself well to calculation and simulation realization. As a matter of fact, the use of more affected analysis tools would provide for more potent solutions. The symbiotic relationship between the generation and testing mechanisms would lead to a larger set of attainable solutions and can assist both the design team in establishing intelligent, sustainable and superior designs. In this paper, I will describe generative performance based design methodology and its expected benefits. I will begin first providing a brief argument on generative systems and their use in design. It will be followed by talking over analysis systems used in architectural design. I hope to explain the methodology phases and show how the methodology influences design process. In the following paper, I focus first of all on the theoretical aspect of design derives from generative design methodology. The practical approach generative design methodology should appear through experiments that I will have carried out on actual experiments project. I hope to present results of experiments soon in succeeding the paper.