Miracle-dz/UniFAR-FTUs huggingface dataset:
Disseny i anàlisi de xarxes cognitives amb terminals auto-recarregables

This project is done as Final Science and Telecommunications Technologies Degree Project. The aim is to propose, implement and expose a telecommunications project. It analyzes three simulated scenarios of a main network and a cognitive network, so that the density and power transmission of the second network achieves a high throughput. Three scenarios are simulated. The first scenario in which most devices can charge their battery cognitive sometime. The second does the same consideration but without being limited by the battery, that means it is assumed to be unlimited. And finally, the third considered the limitations of harvesting circuit. We conclude that although the scenario that presents the main network, where the interference between primary transmitters is very high, secondary network can achieve high throughput compared to the primary network.
The Relationship of TLR2 Polymorphisms with Infectious Diseases

The proinflammatory response induced by Toll-Like receptors (TLR) is considered the host's first defense line. Single nucleotide polymorphisms (SNPs) correspond to the most frequent type of variation in the human genome, and due to the importance of TLR2 in the immune response, SNPs in the TLR gene are related to susceptibility or resistance to various diseases. Thus, the objective of the present study was to identify the polymorphisms existing in the TLR2 gene that may cause susceptibility or protection against infectious diseases. We conducted a systematic review of the literature in the databases Science Direct, National Library of Medicine National Institutes of Health of the USA (PUBMED), Cochrane Collaboration and Medical Literature Analysis and Retrieval System Online (MEDLINE) between 2000 to 2020. The search resulted in 32 articles, all of which in English. Thus, it was demonstrated that the related polymorphisms are extremely important for the identification of related pathologies, whether for the susceptibility or protection of the individual to the diseases, also being essential for the mechanisms of signal generation and immune responses, and finally indicating that a balance between activation and inactivating these receptors to prevent an excessive inflammatory or immune response.
Robust H∞ NLOS-Tolerant Localization Filter and NLOS-Tolerant Remote Reference Tracking Control of Mobile Robot in Wireless Sensor Networks

The need for accurate localization and robust reference tracking control of mobile robot using wireless sensor networks (WSNs) under the non-line-of-sight (NLOS) situations have been widely needed in diverse areas of industry. In order to overcome NLOS situations, a smoothing signal model is employed to embed bias signals due to NLOS in the dynamic system of the mobile robot to avoid the effect of NLOS on the positioning and remote control of the mobile robot using WSNs. In the study, a robust H∞ fuzzy localization filter is developed to efficiently estimate the mobile robot pose (position and orientation) and bias signals due to NLOS using the measurement of WSNs under NLOS situation, external disturbance and measurement noise. Further, a robust H∞ fuzzy NLOS-tolerant localization filter-based remote control design is also proposed for mobile robot system to track the desired trajectory for some purpose in the cluttered and noisy indoor environment in WSN. The robust H∞ NLOS-tolerant fuzzy localization filter-based tracking control design problems of mobile robot in WSN can be transformed to a corresponding linear matrix inequalities (LMIs)-constrained optimization problem, which could be easily solved with the LMI toolbox in Matlab. Finally, a simulation design example is provided to illustrate the design procedure and confirm the performance of the proposed methods for the localization estimation and reference tracking control of the mobile robot in WSN in comparison with the other method in an intelligent building.
Printed double-T monopole antenna for 2.4/5.2 GHz dual-band WLAN operations

A novel and simple printed dual-band double-T monopole antenna is proposed. The antenna comprises two stacked T-shaped monopoles of different sizes, which generate two separate resonant modes for the desired dual-band operation. The proposed antenna has a low profile and can easily be fed by using a 50 /spl Omega/ microstrip line. Prototypes of the proposed antenna designed for WLAN operations in the 2.4 and 5.2 GHz bands have been constructed and tested. Good radiation characteristics of the proposed antenna have been obtained. Effects of varying the monopole dimensions and the ground-plane size on the antenna performance have also been studied.
HSI top-down requirements analysis for ship manpower reduction

U.S. Navy ship acquisition programs such as DD 21 and CVNX are increasingly relying on top down requirements analysis (TDRA) to define and assess design approaches for workload and manpower reduction, and for ensuring required levels of human performance, reliability, safety, and quality of life at sea. The human systems integration (HSI) approach to TDRA begins with a function analysis which identifies the functions derived from the requirements in the Operational Requirements Document (ORD). The function analysis serves as the function baseline for the ship, and also supports the definition of RDT&E and Total Ownership Cost requirements. A mission analysis is then conducted to identify mission scenarios, again based on requirements in the ORD, and the Design Reference Mission (DRM). This is followed by a mission/function analysis which establishes the function requirements to successfully perform the ship's missions. Function requirements of major importance for HSI are information, performance, decision, and support requirements associated with each function. An allocation of functions defines the roles of humans and automation in performing the functions associated with a mission. Alternate design concepts, based on function allocation strategies, are then described, and task networks associated with the concepts are developed. Task network simulations are conducted to assess workloads and human performance capabilities associated with alternate concepts. An assessment of the affordability and risk associated with alternate concepts is performed, and manning estimates are developed for feasible design concepts.
‘Things living in the cyber-universe’: facilitating peer workshopping in the online creative non-fiction classroom

ABSTRACT The writing workshop is a core pedagogical practice in the creative writing discipline in higher education and has significant researched benefits to students. As higher education moves increasingly online – a trend that is arguably escalated in response to the impact of COVID-19 – important questions are raised about if, and how, the writing workshop can be delivered online. This paper uses a literature review combined with analysis of small sample of anonymous student feedback about their experiences in one creative non-fiction subject where workshopping was an assessed learning activity. The authors argue that the benefits of face-to-face workshopping can be translated online, and that students may experience higher quality feedback and increased flexibility in participation. However, these benefits are complicated by the increased workload for students and instructors, challenges with digital literacy and unbounded timelines. The paper offers several recommendations for writing instructors facilitating peer workshopping online.
Wide- and narrow-band bandpass coplanar filters in the W-frequency band

This paper deals with the design of passive coplanar devices in the W-frequency band. As long as coplanar transmission lines are correctly dimensioned, analytical models based on quasi-TEM approximation can be used. Such models are associated with a correct definition of the reference planes at the junctions and employed for junction discontinuities, T- and cross-junctions. In order to validate these assertions, simulated and experimental data on classical quarter-wavelength shunt-stub filters are first presented. Then the design of traditional coupled-line filters is examined. The problems in terms of insertion loss associated with these kinds of narrow-band applications are discussed here. Minimization of insertion losses requires increasing the width of the strips. Consequently, the design becomes complex and modeling using transmission-line models less accurate. Nevertheless, as an optimization procedure is needed to tune the filter theoretically, such a very fast design method is necessary. Simulated and experimental results in the range 500 MHz to 110 GHz are compared throughout the paper.
Do tree species affect decadal changes in soil organic carbon and total nitrogen stocks in Danish common garden experiments?

Temperate forest soils are often considered as an important sink for atmospheric carbon (C), thereby buffering anthropogenic CO2 emissions. However, the effect of tree species composition on the magnitude of this sink is unclear. We resampled a tree species common garden experiment (six sites) a decade after initial sampling to evaluate whether forest floor (FF) and topsoil organic carbon (Corg) and total nitrogen (Nt) stocks changed in dependence of tree species (Norway spruce—Picea abies L., European beech—Fagus sylvatica L., pedunculate oak—Quercus robur L., sycamore maple—Acer pseudoplatanus L., European ash—Fraxinus excelsior L. and small‐leaved lime—Tilia cordata L.). Two groups of species were identified in terms of Corg and Nt distribution: (1) Spruce with high Corg and Nt stocks in the FF developed as a mor humus layer which tended to have smaller Corg and Nt stocks and a wider Corg:Nt ratio in the mineral topsoil, and (2) the broadleaved species, of which ash and maple distinguished most clearly from spruce by very low Corg and Nt stocks in the FF developed as mull humus layer, had greater Corg and Nt stocks, and narrow Corg:Nt ratios in the mineral topsoil. Over 11 years, FF Corg and Nt stocks increased most under spruce, while small decreases in bulk mineral soil (esp. in 0–15 cm and 0–30 cm depth) Corg and Nt stocks dominated irrespective of species. Observed decadal changes were associated with site‐related and tree species‐mediated soil properties in a way that hinted towards short‐term accumulation and mineralisation dynamics of easily available organic substances. We found no indication for Corg stabilisation. However, results indicated increasing Nt stabilisation with increasing biomass of burrowing earthworms, which were highest under ash, lime and maple and lowest under spruce.
Older people with and without dementia participating in the development of an individual plan with digital calendar and message board

The EU‐funded project ‘Middleware Platform for eMPOWERing older people and people with cognitive impairments ‐ MPOWER’ is aimed at developing a technical middleware platform that enables rapid development of flexible, domain‐specific applications that can be personalised for individual use. We focused on creating a set of reusable components that can easily be combined in order to provide the most relevant services in the user's home, eg. calendar services, messaging services and different sensor technologies. In order to evaluate the feasibility of the platform, two full‐scale proof of concept applications (POCAs) were developed and deployed to real‐life environments; one ‘smart home’ solution in Poland and one individual internet‐based digital plan in Norway. This paper presents the findings from the POCA development and trial in Norway.Seven older people and their family carers from the municipality of Trondheim participated in the pilot trial (February 2008‐April 2009), which aimed to evaluate the ser.
Findings on the Approach Process Between Vehicles: Implications for Collision Warning

Over the past 10 years there has been a growing body of research into modeling and describing driving behavior, particularly for situations that occur on motorways. This interest has arisen from the need to assess safety and capacity benefits that could be produced by changes to road design, operation, signage, and in-vehicle advanced transport telematics, such as collision warning (CW) or autonomous cruise control. For the most part these investigations have focused on “close” or “car” following, which describes the maintenance of a time- or distance-based following headway. However, often overlooked, and of equal importance, is the “approach” process, describing how a driver decelerates when approaching a slower vehicle. There are several competing theories of the behavioral basis underlying this process, including, for example, those based on time-to-collision or optic flow. There are, however, very few data against which such models can be assessed and systems designed. Presented are the results from an exploratory, instrumented vehicle study designed to assess approach mechanisms. The two key features of the process are explored: the circumstances under which driver deceleration is instigated, and the process governing the control of the deceleration itself. Finally, there is a brief assessment of the implications of these findings for the design of CW systems, in which realistic warnings may prove vital to their acceptance by the driving public.
The effects of pediatric dentifrices with different types of fluoride on the color change of restorative materials

Purpose: This study aimed to evaluate the effects of dentifrices with different fluoride content on color change of restorative materials commonly used in pediatric dentistry. Materials and methods: Three restorative materials (glass hybrid [Equia Forte (EF)], glass carbomer [GCP Glass Fill (GCP)] and compomer [Dyract XP (DXP)]) were used to prepare 120 disc shaped specimens by using a Teflon ring. Four dentifrice groups were created as Sodium Fluoride (NaF), Amine Fluoride (AmF), Stannous Fluoride (SnF2) and no-fluoride (n=40). Simulated tooth brushing was performed for each specimen by applying 6720 strokes for 6 months. Color changes [CIEDE2000 (Δ𝐸00)] were calculated by using generalized linear model procedure and the data were subjected to two-way analysis of variance. Results: The highest color changes for NaF and AmF dentifrice groups were observed in the GCP restorative material (p<0.05). The color changes of restorative materials tested with SnF2 dentifrice group were statistically different (p<0.05) in each restorative material and Δ𝐸00 values were observed as GCP> EF>DXP. SnF2 dentifrice provided better color stability for all restorative materials when compared to NaF and AmF dentifrices; although, this was not statistically significant. GCP underwent significant discoloration values when brushed with all types of dentifrices. Conclusion: Although the glass carbomers caused significant color change, the compomers seem to be more resistant to the color change when brushed with all types of dentifrices. The fluoride content of dentifrices is crucial for the color change of restorative materials.
Morphology of wood degradation and flame retardants wood coating technology: An overview

Flame retardants mitigate the threat of fire from inherently flammable wood and wood products responsible for sustaining a high standard of living. Wood is one of the aesthetically pleasing, highly sustainable as well as eco-friendly materials. It is not only an integral part of structures, but also the main source of home appliances, furniture, industrial applications, and offices all over the world. The coating provides protection to wood materials against outdoor weathering, photochemical degradation, and fire. Therefore, to minimize the degradation of wood for the increasing long life and survival ability, various coatings were synthesized and applied to enhance their performance for the wood application. This review provides a historical overview that leads to the structural properties of wood and the most promising surface treatments that will help pave the way for developing more effective and non-intrusive flame retardants in the future.
The design and development of a generic location based social media engine

This thesis examines how location aware applications have evolved alongside the rise in high powered mobile devices that provide a location sensing function. A user's location can now be exploited for the delivery of content that is contextually relevant and for users to tag their own content with location specific information. This in turn has given rise to location-based social media in which common social media applications have now become location aware. However, the growth in location-based social media has resulted in the development of incompatible systems and so this thesis presents the case for the creation of a generic and extensible application engine to facilitate new location-based social media applications. Social media applications have been categorised into six main types, and the impact of location has been assessed against each one. From this a generic location-based social media engine was developed using open-source technologies with the core features which spanned across these social media types, and was built on a modular system which allowed the differences to be either configured through configuration files or programmed as separate modules. This applicability of this engine was then demonstrated by implementing it in a cross section of social media types. This was on the whole successful with those limitations that arose being clearly identified and their impact assessed. The thesis provides an analysis of the state of the art for location-based social media, a rationale with a set of requirements for the developed engine and details on key aspects of the engine's design. This is followed by a description of the tests used, an evaluation of the results obtained and a series of recommendations outlining the suitability of the engine as the basis for the creation of new location-based social media applications.
Evaluation of Stress Using Ultrasonic Technique Based on Hilbert-Huang Transform

Pressures vessel are widely used in the modern industry. It is important to measure pressure of vessels. It has been proved that the change of ultrasonic velocity can be used to detect the stress of the material, and the velocity change can be obtained by estimating the time delay of two ultrasonic pulses. In this paper, the Rayleigh wave is selected as the ultrasonic pulse. Because the Rayleigh wave usually contains noise which deteriorates the estimation precision of the time delay, a signal processing method has to be used. Compared with the continuous wavelet transform, the correlative time estimation method based on the Hilbert-Huang Transform is presented in order to calculate the transit time difference. The experiments results show that this method can improve the accuracy of the time estimation.
Computer Simulation for New Theoretical Model Constructed with Tuberculosis

In order to simulate the transmissions of vector-borne diseases and discuss the related health policies effects on vector-borne diseases, we using compartmental model to develop an epidemic simulation models. The research will analyze the complex dynamic mathematic model of tuberculosis epidemic and determine its stability property by using the popular Matlab/Simulink software and relative software packages. Facing the current TB epidemic situation, the development of TB and its developing trend through constructing a dynamic bio-mathematic system model of TB is investigated.
The consequences of complex habitat loss for the New Zealand blue cod, Parapercis colias

Climate driven threats are predicted to decrease the complexity of biogenic habitats. Within temperate coastal marine environments, we know that complex macroalgal beds support more complex communities through the provision of microhabitats and refuges. Macroalgal habitats have potential interacting benefits and costs for predators, as increased macroalgal biomass supports higher richness and diversity of prey species, but prey within these habitats might be more difficult to catch. An important New Zealand fishery species, the blue cod (Parapercis colias), is a large bodied temperate reef fish found exclusively throughout the coastal waters of New Zealand. Its dependence on subtidal coastal reef environments mean that it is important to understand how a loss of complex macroalgal habitats might alter the way that blue cod forage, and how the trade-off between prey abundance and availability will affect its abundance and productivity. This thesis aims to understand the influence of complex macroalgal habitats on P. colias prey availability and behaviour, on the foraging success of P. colias, and ultimately on P. colias population dynamics. Experiments were conducted using choice chambers to evaluate whether two alternate P. colias prey, Forsterygion lapillum and Heterozius rotundifrons, showed a preference for complex habitats with and without predation risk. Both species preferred complex habitats in the absence of predation cues, but F. lapillum showed a more consistent preference for complexity in response to predation risk. A mesocosm experiment was used to investigate whether the consumption rate and functional response of P. colias differs for these two prey types in the presence and absence of habitat complexity. Results indicated that the mobile fish prey, F. lapillum benefitted from the refuges provided by complexity and suffered lower consumption rates, whereas the sedentary crab, H. rotundifrons did not. Finally, using a simple population model, the trade-off between prey abundance and predation success on the population dynamics of P. colias with and without habitat complexity was explored. Models showed that scenarios with complex macroalgal habitats generally support more predators, and faster population growth rates than scenarios lacking habitat complexity. However, scenarios with complex habitats were predicted to be more sensitive to fishing pressure and have the potential to be more vulnerable to overexploitation. These results highlight the importance of understanding how habitat complexity mediates relationships between commercially important fishery species and their prey, in order to understand how habitat loss may alter their foraging success and population dynamics.
Propagación de pulsos solitónicos en redes ópticas WDM

The performance of a WDM soliton system provided with a cascade of EDFAs is evaluated by means of computer simulation. Four optical carriers are modulated with a 2.5 Gb/s rate, 6-bit-pseudo-random sequence. In order to improve the transmission system performance we introduce a dispersion management scheme by using fibers with dispersion of opposite sign per link. The results obtained show the effectiveness of the dispersion management technique employed, reflected in a smaller distortion of the propagated pulses.
Enhancement of quality factor in RF-MEMS spiral inductors by etching out substrate

It is well known that substrate coupling degrades the Q value of spiral inductors. By partial or whole substrate etching out underneath the inductors, the Q of spiral inductors is improved. This paper extends the partial element equivalent circuit (PEEC) method for fast-accuracy electromagnetic analysis of such substrate coupling in RF-MEMS spiral inductors. By introducing electrical boundary conditions into PEEC, the capacitance matrix is extended to include substrate coupling. With the equivalent of charges in the interface, Green functions in uniform dielectric regions can be used in the calculations. The numerical results show good agreement with published measurement data.