Windmill Power Generation Using Mult-Generator and Single Rotor (Horizontal and Vertical Blade)

Wind energy is the environmental pollution free, hazardless and one of the best renewable energy for generation of electric power. The main aim of the paper is “to produce current using multi generator and single rotor”. This paper proposes multi-generator to address potential challenges: dimension, cost and reliability. The two electromagnetic induction generators are desired to share the single shaft through straight bevel gears. These poles of the two generators will be changed as alternate to parallel. This paper discussed about the design procedure of gears, gear life and wind turbine rotors. The output current is stored in series of battery to appliances through converter and step up transformer. The Construction, working, parts of windmill, materials are discussed detailed in this paper. Keywords: Electromagnetic Induction Generator, Wind Turbine, Straight Bevel Gear, Poles of Generator

Comparison of two targets of serum bilirubin concentration for phototherapy discontinuation in neonatal jaundice

AIM OF THE STUDY: To compare the occurrence of significant rebound hyperbilirubinemia between two groups of neonates with jaundice, when phototherapy was stopped at serum bilirubin 1-2.9 mg/dl and ≥ 3mg/dl below American Academy of Paediatrics (AAP) treatment threshold. METHODOLOGY: An Open labelled randomised controlled trial was conducted in a teaching hospital. Neonates with ≥ 35 weeks gestation, birth weight > 1800 grams with jaundice requiring phototherapy as per AAP guidelines, in first 7 days of life were included. Neonates planned for exchange transfusion at admission were excluded. Computer generated random numbers were kept in serially numbered opaque sealed envelope. After recruitment, the envelope was opened and babies were assigned into groups accordingly. Phototherapy was stopped at serum bilirubin 1- 2.9mg/dl in group A and ≥3mg/dl in group B. After stopping phototherapy serum bilirubin was measured at about 6 and 24 hours. RESULTS: We recruited 99 babies in each group and after excluding the lost to follow up, 83 babies in group A and 77 in group B who completed the study were taken for analysis. 2 babies in each group required re-initiation of phototherapy, but not statistically significant (p = 0.661). The mean duration of phototherapy was significantly less in group A (14.9 hours) when compared to group B (19.5 hours) (p = 0.000). The duration of hospitalization was not significantly different between groups (p = 0.695). CONCLUSION: We found that the occurrence of significant rebound hyperbilirubinemia was not significantly different between two groups, when phototherapy was stopped at 1-2.9mg/dl and ≥ 3mg/dl below AAP treatment threshold

What impacts students’ satisfaction the most from Medicine Student Experience Questionnaire in Australia: a validity study

Purpose: This study evaluated the validity of student feedback derived from Medicine Student Experience Questionnaire (MedSEQ), as well as the predictors of students’ satisfaction in the Medicine program. Methods: Data from MedSEQ applying to the University of New South Wales Medicine program in 2017, 2019, and 2021 were analyzed. Confirmatory factor analysis (CFA) and Cronbach’s α were used to assess the construct validity and reliability of MedSEQ respectively. Hierarchical multiple linear regressions were used to identify the factors that most impact students’ overall satisfaction with the program. Results: A total of 1,719 students (34.50%) responded to MedSEQ. CFA showed good fit indices (root mean square error of approximation=0.051; comparative fit index=0.939; chi-square/degrees of freedom=6.429). All factors yielded good (α>0.7) or very good (α>0.8) levels of reliability, except the “online resources” factor, which had acceptable reliability (α=0.687). A multiple linear regression model with only demographic characteristics explained 3.8% of the variance in students’ overall satisfaction, whereas the model adding 8 domains from MedSEQ explained 40%, indicating that 36.2% of the variance was attributable to students’ experience across the 8 domains. Three domains had the strongest impact on overall satisfaction: “being cared for,” “satisfaction with teaching,” and “satisfaction with assessment” (β=0.327, 0.148, 0.148, respectively; all with P<0.001). Conclusion: MedSEQ has good construct validity and high reliability, reflecting students’ satisfaction with the Medicine program. Key factors impacting students’ satisfaction are the perception of being cared for, quality teaching irrespective of the mode of delivery, and fair assessment tasks which enhance learning

Enhancing Network Security: Host Trustworthiness Estimation

Network connected devices has become inherent part of our lives. These devices have come to be more and more mobile and are target of various malware attacks. An inability to guarantee or check proper security settings of such devices poses a serious risk to network security. In this paper we propose a novel concept of flow based host trustworthiness estimation. The estimated trustworthiness determines a level of the risk to the network security the host posses. This concept enables network operators to identify a potential dangerous host in their network and take an appropriate precautions. Models used for trustworthiness estimation are based on scoring either single events or host characteristics. In order to be able to estimate trustworthiness of a host even in large scale networks, the data used for estimation are reduced only to extended network flows. The research is in its initial phase and will conclude with Ph.D. thesis in three years.Zařízení připojené do sítě se stala neodmyslitelnou součástí našeho života. Tyto zařízení jsou stále mobilnější a stávají se cílem různých druhů škodlivého softwaru. Neschopnost zaručit či prověřit správné nastavení bezpečnostního zajištění těchto zařízení představuje nezanedbatelné riziko pro bezpečnost počítačové sítě. V tomto článku je představen koncept pro odhadování míry důvěryhodnosti daného zařízení. Míra důvěryhodnosti reprezentuje míru rizika, kterou zařízení představuje pro síťovou bezpečnost. Tento koncept umožní správcům sítě identifikovat potenciálně nebezpečné zařízení. Modely pro odhadování důvěryhodnosti jsou založeny na scoringu buď jednotlivých událostí nebo charakteristik zařízení. Aby bylo možné odhadovat důvěryhodnost zařízené dokonce i v rozsáhlých sítích, pro odhad důvěryhodnosti jsou využívána pouze data ze síťových toků. Výzkum je v jeho počáteční fázi a bude v horizontu tří let završen disertační prací

Next Generation Application-Aware Flow Monitoring

Deep packet inspection (DPI) and IP flow monitoring are frequently used network monitoring approaches. Although the DPI provides application visibility, detailed examination of every packet is computationally intensive. The IP flow monitoring achieves high performance by processing only packet headers, but provides less details about the traffic itself. Application-aware flow monitoring is proposed as an attempt to combine DPI accuracy and IP flow monitoring performance. However, the impacts, benefits and disadvantages of application flow monitoring have not been studied in detail yet. The work proposed in this paper attempts to rectify this lack of research. We also propose a next generation flow measurement for application monitoring. The flows will represent events within the application protocol, e.g., web page download, instead of packet stream. Finally, we will investigate the performance of different approaches to application classification and application parsing with a computational complexity in mind.Často používané metody monitorování sítě jsou hloubková inspekce paketů (DPI) a monitorování síťových IP toků. Přestože DPI poskytuje formace z aplikační vrstvy, podrobné zkoumání každého paketu je výpočetně náročné. Monitorování pomocí IP síťových toků dosahuje vysokého výkonu, protože zpracovává pouze záhlaví paketů, ale také poskytuje méně informací o provozu samotném. Měření aplikačních síťových toků bylo navrženo jako pokus zkombinovat přesnost DPI a výkon IP síťových toků. Dopady, výhody a nevýhody aplikačních síťových toků zatím ale nebyly dostatečně prostudovány. Práce navrhovaná v tomto článku se snaží napravit tento nedostatek výzkumu. Navíc také navrhujeme další generaci měření síťových toků. Tyto toky budou místo sekvence paketů reprezentovat události v aplikačních protokolech, například stažení webové stránky. Budeme se také zabývat výkonem a výpočetní složitostí různých přístupů ke klasifikaci provozu a zpracování aplikačních protokolů

A Review of NEST Models, and Their Application to Improvement of Particle Identification in Liquid Xenon Experiments

Liquid xenon is a leader in rare-event physics searches. Accurate modeling of charge and light production is key for simulating signals and backgrounds in this medium. The signal- and background-production models in the Noble Element Simulation Technique (NEST) are presented. NEST is a simulation toolkit based on experimental data, fit using simple, empirical formulae for the average charge and light yields and their variations. NEST also simulates the final scintillation pulses and exhibits the correct energy resolution as a function of the particle type, the energy, and the electric fields. After vetting of NEST against raw data, with several specific examples pulled from XENON, ZEPLIN, LUX/LZ, and PandaX, we interpolate and extrapolate its models to draw new conclusions on the properties of future detectors (e.g., XLZD's), in terms of the best possible discrimination of electron(ic) recoil backgrounds from a potential nuclear recoil signal, especially WIMP dark matter. We discover that the oft-quoted value of 99.5% discrimination is overly conservative, demonstrating that another order of magnitude improvement (99.95% discrimination) can be achieved with a high photon detection efficiency (g1 ~ 15-20%) at reasonably achievable drift fields of 200-350 V/cm.Comment: 24 Pages, 6 Tables, 15 Figures, and 15 Equation

The Kynurenine Pathway Metabolites in Cord Blood Positively Correlate With Early Childhood Adiposity

Context The kynurenine pathway generates metabolites integral to energy metabolism, neurotransmission, and immune function. Circulating kynurenine metabolites positively correlate with adiposity in children and adults, yet it is not known whether this relationship is present already at birth. Objective In this prospective longitudinal study, we investigate the relationship between cord blood kynurenine metabolites and measures of adiposity from birth to 4.5 years. Methods Liquid chromatography-tandem mass spectrometry was used to quantify cord blood kynurenine metabolites in 812 neonates from the Growing Up in Singapore Towards healthy Outcomes (GUSTO) study. Fat percentage was measured by air displacement plethysmography and abdominal adipose tissue compartment volumes; superficial (sSAT) and deep subcutaneous (dSAT) and internal adipose tissue were quantified by magnetic resonance imaging at early infancy in a smaller subset of neonates, and again at 4 to 4.5 years of age. Results Cord blood kynurenine metabolites appeared to be higher in female newborns, higher in Indian newborns compared with Chinese newborns, and higher in infants born by cesarean section compared with vaginal delivery. Kynurenine, xanthurenic acid, and quinolinic acid were positively associated with birthweight, but not with subsequent weight during infancy and childhood. Quinolinic acid was positively associated with sSAT at birth. Kynurenic acid and quinolinic acid were positively associated with fat percentage at 4 years. Conclusion Several cord blood kynurenine metabolite concentrations were positively associated with birthweight, with higher kynurenic acid and quinolinic acid correlating to higher percentage body fat in childhood, suggesting these cord blood metabolites as biomarkers of early childhood adiposity.Peer reviewe