Miracle-dz/UniFAR-FTUs huggingface dataset:
Sensorless field oriented control of PMSM based on the extended KALMAN filter observer

in this paper, a study of sensorless field oriented control applied to surface-mount permanent-magnet synchronous motor is presented, the motor has been described in a stationary two-axes reference frame (α,β), to overcome the uncertainties the internal, measurement noises, the non zero initial rotor position and the dynamic nonlinearity of PMSM, the extended kalman filter (EKF) is used as a robust observer. The speed and rotor position estimation of PMSM drive are obtained through an EKF algorithm, by simply measurement of the stator line voltages and currents. Good state estimation with EKF observer is proved by the simulation results. Streszczenie. Artykuł poświęcony jest bezczujnikowemu sterowaniu silnikiem synchronicznym z magnesami trwałymi. Jako odporny obserwator jest użyty filtr Kalmana. Prędkość I pozycja wirnika są określane na podstawie algorytmu filtru prze pomiar napięcia I prądu stojanas. Bezczujnikowe sterowsanie silnikiem synchronicznym bazujące na filtrze Kalmana
Managing the service concept in creating an innovative tourism product

Purpose – A large number of players involved in supply and delivery of tourist experience, on the one side, and visitors’ unique experience on the other, make the development of the service concept of an innovative tourism product at destination very complex. Although there is a tendency towards increasing multiple partnerships in managing services, the requirements and standardization of processes in the performance management model is missing. The proposed conceptual model of the service concept is a useful tool for analyzing the overall service concept performance, stressing the importance of the Quadro Helix Model of engagement. The paper aims to investigate the innovative service concept and service processes from the operational and service marketing perspective, starting from the theoretical background and the constructs such as “organizing idea”, “service provided” and “service received”. The proposed model is tested on the case of “Istra Inspirit”, a project that has received multiple awards for innovativeness and creativity in tourism offer by conceiving and organizing events that revive history, myths and legends. Methodology – In order to obtain qualitative data for testing the creation of processes for the service concept, in depth semi-structured interviews with the service providers were conducted, focusing on actions, problems and processes research. In addition, introspective, life history and visual texts were used. The case of “Istra Inspirit” illustrates the service concept and its applicability in practice. Findings – The paper brings forward the conceptual model of the components and processes of the service experience by which the tourism service concept can be articulated. This study attempts to develop a multi-disciplinary approach in managing the service concept at a tourist destination. The “Istra Inspirit” project presents the service concept created by the tourist destination itself (County of Istria), which became proactive in finding ways to create new tourism products in the Quadro Helix Engagement Model. This example was chosen because it is a good illustration of managing the service concept with an economic value. The paper presents the conclusion and the managerial implications, which can be used as guidelines for benchmarking innovative tourism products. Contribution – Although final results might not be generalized, the processes used to create an innovative tourism product according to the service concept can be applied in other circumstances and on other projects. The intention of this paper is to contribute to tourism research with new content and new methodology. The service concept is stressing the importance of achieving a multidisciplinary performance management model and the need for improved articulation of the service concept. In this way, the paper brings forward a blueprint in order to propose a model of the components of the service experience concept and offers a methodological framework for articulation of service experience.
Discriminating Bacterial Infection from Other Causes of Fever Using Body Temperature Entropy Analysis

Body temperature is usually employed in clinical practice by strict binary thresholding, aiming to classify patients as having fever or not. In the last years, other approaches based on the continuous analysis of body temperature time series have emerged. These are not only based on absolute thresholds but also on patterns and temporal dynamics of these time series, thus providing promising tools for early diagnosis. The present study applies three time series entropy calculation methods (Slope Entropy, Approximate Entropy, and Sample Entropy) to body temperature records of patients with bacterial infections and other causes of fever in search of possible differences that could be exploited for automatic classification. In the comparative analysis, Slope Entropy proved to be a stable and robust method that could bring higher sensitivity to the realm of entropy tools applied in this context of clinical thermometry. This method was able to find statistically significant differences between the two classes analyzed in all experiments, with sensitivity and specificity above 70% in most cases.
Abrocitinib 100 mg versus 200 mg for atopic dermatitis: a meta-analysis of randomized controlled trials

Introduction It is elusive to compare the efficacy and safety of abrocitinib 100 mg versus 200 mg once daily in patients with atopic dermatitis. Aim This meta-analysis aims to explore the influence of abrocitinib 100 mg versus 200 mg on the treatment of atopic dermatitis. Material and methods Several databases including PubMed, EMbase, Web of science, EBSCO, and Cochrane library were systematically searched through July 2021. We included randomized controlled trials (RCTs) assessing the effect of abrocitinib 100 mg versus 200 mg for patients with atopic dermatitis. Results Four RCTs were included in the meta-analysis. Compared with abrocitinib 100 mg for atopic dermatitis, abrocitinib 200 mg had a remarkably positive impact on IGA response (OR = 1.78; 95% CI: 1.39–2.28; p < 0.00001), EASI-75 (OR = 2.03; 95% CI: 1.60–2.57; p < 0.00001), NRS response (OR = 1.97; 95% CI: 1.27–3.08; p = 0.003), and adverse events (OR = 1.43; 95% CI: 1.11–1.84; p = 0.005), but it showed no obvious influence on serious adverse events (OR = 0.59; 95% CI: 0.25–1.37; p = 0.22). Conclusions Abrocitinib 200 mg is better than abrocitinib 100 mg for the treatment of atopic dermatitis.
Upaya Pasangan Tunanetra dalam Membentuk Keluarga Sakinah; Studi Kasus di Kecamatan Manggala, Kota Makassar

How are the efforts of a blind couple in forming a sakinah family at the Karya business foundation for the blind in forming a sakinah family in the blind works business foundation? 2) What are the obstacles that occur for blind couples in blind works business foundations? This type of research is field research that departs from observers and social fact finding which is studied using sociological, anthropological and normative juridical approaches.The results of this study indicate that 1) The efforts of blind couples in forming a sakinah family are influenced by the fulfillment of economic needs where the couples in fulfilling their economic needs trade or become medium masseurs services based on spiritual aspects where the efforts made are that through the foundation they get guidance. spiritual from the teaching staff 2) the obstacles for blind couples in forming a sakinah family, there are several things, including physical conditions that experience economic limitations which sometimes become obstacles to ineffective communication and disputes, and disputes that often occur in the household. 3) the family sakinah is a family that is calm, peaceful and happy physically and spiritually, this is an important aspect goal that must be built in the family and become a good goal before fostering a household and after determining the concept of happiness In life, the implications of this study include 1) This study discusses how blind couples are trying to form a sakinah family and also discusses the meaning of marriage. and the concept of the sakinah family which provides a reference and is also used as a reference material for further research 3) to the partner
Harmonic analysis of VHF resonant converter based on equivalent nonlinear controlled model

Lifting operating frequency can effectively reduce the size of energy‐storage components and increase the power density of converters, thus the very high frequency (VHF) resonant converters can find wide applications in practice. In order to further study the characteristics of VHF converters, a modeling method is presented for solving the state variables. First, according to the analysis of a typical VHF converter's operating modes, a unified equivalent circuit is established, which contains nonlinear controlled current sources. Then the mathematical model of the equivalent circuit is derived and solved by using the equivalent small parameter (ESP) method. And the approximate analytical solutions of state variables can be finally obtained, which are composed of a DC component and various harmonics. It is shown that the obtained solutions are accurate enough as the results from the proposed method agree well with the simulations and experimental results. Furthermore, the approximate analytical expressions for harmonics of state variables can be used as a guide for circuit design and stability analysis of the converter.
Tissue Microarray Analyses Suggest Axl as a Predictive Biomarker in HPV-Negative Head and Neck Cancer

Simple Summary Despite many efforts, no predictive biomarkers that could guide clinical decision making and personalized treatment have been established for patients with head and neck squamous cell carcinoma. We propose that high expression of the tyrosine kinase receptor Axl identifies patients as being at enhanced risk for treatment failure under surgery alone and, hence, should be treated by primary or adjuvant radiotherapy. Abstract The receptor tyrosine kinase Axl is described to promote migration, metastasis and resistance against molecular targeting, radiotherapy, and chemotherapy in various tumor entities, including head and neck squamous cell carcinoma (HNSCC). Since clinical data on Axl and its ligand Gas6 in HNSCC are sparse, we assessed the association of Axl and Gas6 expression with patient survival in a single center retrospective cohort in a tissue microarray format. Expression was evaluated manually using an established algorithm and correlated with clinicopathological parameters and patient survival. A number of 362 samples yielded interpretable staining, which did not correlate with T- and N-stage. Protein expression levels were not associated with the survival of patients with p16-positive oropharyngeal SCC. In HPV-negative tumors, Axl expression did not impact patients treated with primary or adjuvant radio(chemo)therapy, but was significantly associated with inferior overall and recurrence-free survival in patients treated with surgery alone. Gas6 was a positive predictor of survival in patients whose treatment included radiotherapy. Associations remained significant in multivariable analysis. Our data question a meaningful contribution of the Axl/Gas6 pathway to radio-resistance in HNSCC and instead suggest that strong Axl expression identifies tumors requiring adjuvant radio(chemo)therapy after surgery.
Insight into High-temperature Ignition Processes of Methane–T425 Mixtures at Various Methane Contents: Experimental and Chemical Kinetic Analysis

ABSTRACT A surrogate fuel model named as T425 was constructed for diesel with 57.5% n-heptane and 42.5% toluene by mole fraction, and then ignition characteristics of stoichiometric methane–T425 mixtures with various methane contents at elevated initial temperatures were investigated at initial pressures up to 30 atm via a shock tube facility. The result shows that behaviors of two reaction mechanisms studied in accurate prediction of ignition of methane–T425 mixture depend on initial pressure and temperature. At higher methane content, more significant change will occur in ignition delay time of the mixture if continually increasing the methane content. In the ignition process, methane is consumed through reactions with radicals in a short time near the ignition time point. Attacks from radicals to n-heptane dominate its consumption, but at initial stage of ignition period the decomposition reaction plays the major role for the consumption of n-heptane. Radicals including H and OH show the control over the consumption of toluene, and such consumption lasts for a relatively longer time compared to methane. When elevating the methane content, decomposition reactions for consumption of n-heptane are promoted, and reactions involving CH3 are enhanced in oxidation processes of methane and toluene.
Proportional rate constrained resource allocation in multicarrier nonorthogonal multiple access systems

In multicarrier nonorthogonal multiple access (MC‐NOMA) systems, resource allocation for user rate fairness is an inherent challenge due to the huge difference in channel conditions among different users. As the general case of proportional fairness, proportional rate constraint is usually adopted in resource allocation optimization problems to ensure that achievable rates of users are distributed proportionally according to a set of arbitrarily predefined portion. In this article, we investigate joint subcarrier and power allocation in MC‐NOMA systems under proportional rate constraints. The formulated resource allocation optimization problem belongs to a mixed integer nonlinear programming (MINLP) problem due to its binary subcarrier allocation variables and nonaffine equality constraints. By introducing an auxiliary variable in proportional rate constraints and substituting power variable with rate variable, we convert this nonconvex problem into a convex optimization problem and solve it by using Karush‐Kuhn‐Tucker (KKT) conditions and the dual decomposition method. Based on the optimal solutions, we divide the resource allocation process into two phases, that is, subcarrier allocation and power allocation, and develop an optimal subcarrier allocation solution based resource allocation algorithm (OSSRA). Furthermore, we also propose a heuristic algorithm, referred to as proportional rate constrained subcarrier allocation algorithm (PCSAA), as a benchmark. Numerical results show that, substantial gains can be achieved by OSSRA over the existing work and the traditional orthogonal multiple access (OMA) schemes in terms of both sum rate and user fairness. Besides, PCSAA has better user fairness performance than OSSRA.
Cloud-Edge-End Collaboration in Air–Ground Integrated Power IoT: A Semidistributed Learning Approach

The combination of air–ground integrated power Internet of Things (AGI-PIoT) and cloud-edge-end collaboration enables flexible coverage and real-time data processing. However, how to achieve intelligent cloud-edge-end collaboration in AGI-PIoT faces several challenges such as dynamics of aerial networks, coupling of resource allocation in multiple layers, timescales, and dimensions, incomplete information, and dimensionality curse. In this article, we propose a FEderated Deep rEinforcement leaRning-based multi-lAyer multi-Timescale multi-dImensional resOurce allocatioN algorithm (FEDERATION). The multilayer multitimescale multidimensional resource allocation problem is decomposed into three subproblems based on Lyapunov optimization. For the subproblem of joint task offloading and power control, a federated deep actor-critic-based semidistributed algorithm is developed. The subproblem of admission control is solved by quadratic programming. The third subproblem is addressed through smooth approximation and Lagrange dual decomposition. Simulation results indicate that FEDERATION outperforms existing algorithms in queuing delay, energy consumption, and convergence.
The Influence of Experiential Marketing on Customer Satisfaction and Loyalty

Abstract Today, experiences are considered a key differentiating factor for companies as products and services have become similar in terms of their functional attributes. Moreover, individuals' choices are increasingly influenced not only by rational factors, but mainly by emotional factors. This study aims to understand whether the dimensions of experience influence consumer satisfaction and loyalty. The hypotheses were tested using PLS-SEM based on survey data. The results show that satisfaction is influenced positively and directly by affective and sensorial experience and loyalty is influenced positively and directly by affective and behavioral experience. The results also indicate the existence of an indirect relationship between the sensory experience and the affective experience with the loyalty having the mediating effect of satisfaction.
Exploration of adverse patterns of placement of young people in secure care: The unwanted child?

Abstract Background Emerging evidence suggests that distant placements and multiple moves may be detrimental to young people in care settings. Less is known about the characteristics of young people in secure care most affected by these processes. Aims This study examined distance from home and number of previous placements in English young people detained in secure care and their relationships with organisational and individual characteristics. Methods Data were derived from the (2016) cross‐sectional National Adolescent Study census of English young people in secure care, which included 1322 young people across secure mental health, welfare and Youth Justice establishments. Associations were described with odds ratios/95% confidence intervals (OR/CI). Results Overall, 285 young people (26.4%) were in secure placements over 100 miles from their family/local authority while 54 (5.6%) had 10 or more previous placements. These rates were higher in secure welfare than other settings (73.8%; OR (CI) = 9.62 (5.72, 16.18), 12.7%; OR (CI) = 2.76 (1.29, 5.91) respectively), and there was significant overlap between long‐distance placement and multiple placements (n = 22; OR (CI) = 2.26 (1.27, 4.04)). Younger age and presence of neurodevelopmental disorder were also associated with long‐distance placements while psychiatric diagnosis, previous secure placement, and previous service contact were linked to multiple placements. Conclusions Distant and/or multiple placements in young people in secure care appear common, particularly for those who are placed in secure welfare and who are younger and/or present with a psychiatric disorder. Multi‐agency evaluations that capture the longitudinal experience of these vulnerable young people are needed to understand how undesirable patterns of placement in secure care occur and prevent future instances.
Coherent Free-Space Optical Communications: Opportunities and Challenges

The ever-increasing data rate demand for wireless systems is pushing the physical limits of standalone radio-frequency communications, thus fostering the blooming of novel high-capacity optical wireless solutions. This imminent penetration of optical communication technologies into the wireless domain opens up a set of novel opportunities for the development of a new generation of wireless systems providing unprecedented capacity. Unlocking the full potential of free-space optics (FSO) transmission can only be achieved through a seamless convergence between the optical fiber and optical wireless domains. This will allow taking advantage of the staggering progress that has been made on fiber-based communications during the last decades, namely leveraging on the latest generation of Terabit-capable coherent optical transceivers. On the other hand, the development of these high-capacity optical wireless systems still faces a set of critical challenges, namely regarding the impact of atmospheric turbulence and pointing errors. In this work, we provide an in-depth experimental analysis of the main potentialities and criticalities associated with the development of ultra-high-capacity FSO communications, ultimately leading to the long-term (48-hours) demonstration of a coherent FSO transmission system delivering more than 800 Gbps over $\sim$42 m link length, in an outdoor deployment exposed to time-varying turbulence and meteorological conditions.
Formulation and Evaluation of Rosuvastatin Calcium Polymeric Nanoparticles-Loaded Transdermal Patch

Background: Transdermal drug delivery systems (TDDS) have been rapidly developed as a promising alternative to the oral delivery systems to provide controlled drug delivery and avoid the first-pass metabolism of drugs. Recently, various nanocarriers such as liposome and lipid nanoparticles have been used to enhance dermal and transdermal penetration of drugs. The aim of this study is to formulate and evaluate a polymeric nanoparticle (PNPs)-loaded transdermal patch of the antihyperlipidemic drug rosuvastatin. Materials and Methods: Rosuvastatin PNPs were prepared by nanoprecipitation method, and evaluated for particle size, zeta-potential and polydispersity index. PNPs-loaded patch and PNPs-free patch (control) of rosuvastatin were prepared by solvent casting method using hydroxyl polymethyl cellulose K15 (HPMC K 15) as film-forming polymer and polyethylene glycol 200 (PEG 200) as a plasticizer and evaluated for physical appearance, thickness, folding endurance, surface pH, in-vitro release and ex-vivo permeability. Results: The particle size, zeta-potential, and polydispersity index of rosuvastatin-loaded PNPs were 68.69 nm, - 7.5 mV, and 0.294, respectively. The prepared transdermal films showed acceptable appearance, thickness, and folding endurance as well as surface pH values. In vitro release study showed 65% and 82% cumulative release after 24 hrs for the polymeric nanoparticle-loaded patch and control patch, respectively. However. ex vivo permeation results showed that a significantly higher amount of rosuvastatin permeated via rat skin from the PNPs-loaded patch in comparison to the control patch (P-value ˂ 0.05). Conclusion: Rosuvastatin PNPs-loaded transdermal patch was successfully prepared and revealed promising releasing and permeation properties comparing to control patch.
Drought-Tolerance QTLs Associated with Grain Yield and Related Traits in Spring Bread Wheat

The present research aims to identify the efficient combination of drought-tolerance selection criteria and associated quantitative trait loci. A panel of 197 bread wheat genotypes was evaluated for yield- and drought-tolerance-related traits in two environments (favorable and semiarid) for 2 years (2015–2016). Grain number, biomass, number of fertile spikes per plant and ground cover exhibited a significant correlation with grain yield and constitute potential secondary selection criteria for yield under drought conditions. About 73 significant marker–trait associations were detected along various chromosomal positions. The markers “wsnp_Ex_Rep_c67786_66472676” and “ExcalibuR_c24593_1217” exhibited important genetic gains associated with yield increase under drought (11 and 7%, respectively). The markers “KukRi_c94792_127” and “wsnp_Ex_c298_580660” showed a significant correlation with grain yield, biomass and grain number and were associated with a significant increase in yield performance at the semiarid site (+6 and +7%, respectively). The ground cover was found associated with grain yield and biomass through the markers “wsnp_Ex_Rep_c67786_66472676” (+11%) and “KukRi_c49927_151” (+10%). One marker “TduRuM_contig25432_1377” on chromosome 5B at 20 cM was consistently correlated with the number of fertile spikes across both environments. Further research should be considered to validate the efficiency of these markers to undertake selection for drought tolerance under various environments and genetic backgrounds.