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Lattice thermal conduction in cadmium arsenide

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Chinese Physics B 2022年第11期31卷 424-430页

作者： R F Chinnappagoudra M D Kamatagi n R Patil n s sankeshwar Department of Physics S.S.Government First Grade CollegeNargund-582207KarnatakaIndia Research Resource Centre Visvesvaraya Technological UniversityBelagavi-590018KarnatakIndia Department of Physics B V B College of Engineering and TechnologyHubliKarnataka 80031India Department of Physics&Electronics CHRIST(Deemed to be University)Bangalore-560029KarnatakaIndia

Lattice thermal conductivity(LTC)of cadmium arsenide(Cd_(3)As_(2))is studied over a wide temperature range(1–400 K)by employing the Callaway *** acoustic phonons are considered to be the major carriers of heat and to be scattered by the sample boundaries,disorder,impurities,and other phonons via both Umklapp and normal phonon *** calculations of LTC of Cd_(3)As_(2)bring out the relative importance of the scattering *** systematic analysis of recent experimental data on thermal conductivity(TC)of Cd_(3)As_(2)samples of different groups,presented in terms of LTC,κL,using a nonlinear regression method,reveals good fits to the TC data of the samples considered for Tnd suggests a value of 0.2 for the Gruneisen *** is,however,found that for T>100 K the inclusion of the electronic component of TC,κe,incorporating contributions from relevant electron scattering mechanisms,is needed to obtain good agreement with the TC data over the wide temperature *** detailed investigations of TC of Cd_(3)As_(2)are required to better understand its suitability in thermoelectric and thermal management devices.

关键词： dirac semimetals Cd_(3)As_(2) thermal conductivity phonon scattering

An optimized ion trap geometry to measure quadrupole shifts of ^(171)Yb~＋ clocks

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Chinese Physics B 2016年第11期25卷 230-237页

作者： n Batra B K sahoo s De Academy of scientific and Innovative Research CSIR-NPL Campus New Delhi India CsIR-national Physical Laboratory Dr. K. S. Krishnan Marg New Delhi 110012 India Theoretical Physics Division Physical Research Laboratory Navrangpura Ahmedabad 380009 India

We propose a new ion-trap geometry to carry out accurate measurements of the quadrupole shifts in the （171）Yb *** trap will minimize the quadrupole shift due to the harmonic component of the confining potential by an order of *** will be useful to reduce the uncertainties in the clock frequency measurements of the 6s 2s（1/2）→4f（13）6s2 2F（7/2）and 6s 2s（1/2）→5d2D（3/2） transitions,from which we can deduce the precise values of the quadrupole moments（0s） of the 4f（13）6s2 2F（7/2） and 5d2D（3/2） ***,it may be able to affirm the validity of the measured 0 value of the4f（13）6s22F（7/2） state,for which three independent theoretical studies defer almost by one order of magnitude from the *** also calculate 0s using the relativistic coupled-cluster（RCC） *** use these 0 values to estimate the quadrupole shift that can be measured in our proposed ion trap experiment.

关键词： validity minimize carry clock relativistic precise deduce magnitude expectation spatially

synthesis and characterization of CnT/Ce-TiO_2 nanocomposite for phenol degradation

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Journal of Rare Earths 2012年第7期30卷 651-658页

作者： shaari n Tan s H Mohamed A R school of Chemical Engineering Engineering Campus University Sains Malaysia

An innovative photocatalyst, Carbon nanotube （CnT） supported Ce-TiO2 nanocomposite was successfully synthesized via modi-fied sol gel method and investigated in a batch reactor for abolition of phenol under UV light spectrum. Characterization of catalyst micro-structure and internal properties were done by means of X-ray diffraction （XRD）, Brunauer-Emmett-Teller （BET）, scanning electron micros-copy （sEM）, transmission electron microscopy （TEM） and UV-vis diffuse reflectance spectra （DRs）. Ce doping can inhibit phase transfor-mation from anatase to rutile and eliminate the recombination of electron-hole pairs in the catalyst. The presence of CnT in TiO2 composite can both increase the photoactivity under UV and change surface properties to achieve sensitivity to visible light. The optimum mass ratio of CnT support and cerium （Ce） dopant in TiO2 was the prominent factor to harvest CnT/Ce-TiO2 photocatalyst nanocomposite. The results demonstrated that optimum mass ratio of CnT：TiO2：Ce was 0.02：1.0：0.06, which resulted in the great performance of the photocatalyst to de-grade about 94% of phenol in a 50 mg/L solution in only 3 h. In this paper, dissimilar role of CnT support and Ce dopant in the TiO2 photo-catalysis of phenol was also discussed.

关键词： carbon nanotube (CnT) cerium TiO2 nanocomposite photocatalyst phenol rare earths

IoT Information status Using Data Fusion and Feature Extraction Method

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Computers, Materials & Continua 2022年第1期70卷 1857-1874页

作者： s.s.saranya n.sabiyath Fatima Department of Computer science and Engineering B.S.Abdur Rahman Crescent Institute of Science and TechnologyVandalurChennaiTamil NaduIndia

The Internet of Things(IoT)role is instrumental in the technological advancement of the healthcare *** the hardware and the core level of software platforms are the progress resulted from the accompaniment of Medicine *** IoT systems are the emergence of this *** communication systems between the sensing nodes and the processors;and the processing algorithms to produce output obtained from the data collected by the sensors are the major empowering *** present,many new technologies supplement these empowering ***,in this research work,a practical feature extraction and classification technique is suggested for handling data acquisition besides data fusion to enhance treatment-related *** the initial stage,IoT devices are gathered and pre-processed for fusion *** Bayesian network is considered an improved balance for tractability,a tool for CDF *** Principal Component Analysis is deployed for feature extraction along with dimension ***,this data learning is attained through Hybrid Learning Classifier Model for data fusion performance *** this research,Deep Belief neural network and support VectorMachine are hybridized for healthcare data ***,the suggested system is probably a beneficial decision support tool for multiple data sources prediction and predictive ability enhancement.

关键词： IoT data fusion improved principal component analysis hybrid learning model

Mechanical, piezoelectric and some thermal properties of(B3) BP under pressure

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Journal of Central south University 2014年第1期21卷 58-64页

作者： s.DAOUD n.BIOUD n.LEBGAA Faculty of science and Technology University of Bordj Bou-Arreridj Optoelectronics and Compounds Laboratory Ferhat Abbes University

some compounds of group III-V semiconductor materials exhibit very good piezoelectric,mechanical,and thermal properties and their use in surface acoustic wave(sAW) devices operating specially at GHz *** materials have been appreciated for a long time due to their high acoustic velocities,which are important parameters for active microelectromechanical systems(MEMs) *** this object,first-principles calculations of the anisotropy and the hydrostatic pressure effect on the mechanical,piezoelectric and some thermal properties of the(B3) boron phosphide are presented,using the density functional perturbation theory(DFPT).The independent elastic and compliance constants,the Reuss modulus,Voigt modulus,and the shear modulus,the Kleinman parameter,the Cauchy and Born coefficients,the elastic modulus,and the Poisson ratio for directions within the important crystallographic planes of this compound under pressure are *** direct and converse piezoelectric coefficients,the longitudinal,transverse,and average sound velocity,the Debye temperature,and the Debye frequency of(B3) boron phosphide under pressure are also presented and compared with available experimental and theoretical data of the literature.

关键词： (B3) BP compound mechanical properties pressure and anisotropy effect thermal properties

Approximate dynamic programming solutions with a single network adaptive critic for a class of nonlinear systems

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控制理论与应用（英文版） 2011年第3期9卷 370-380页

作者： s.n.BALAKRIsHnAn Department of Mechanical and Aerospace Engineering Missouri University of Science and Technology

Approximate dynamic programming(ADP) formulation implemented with an adaptive critic(AC)-based neural network(nn) structure has evolved as a powerful technique for solving the Hamilton-Jacobi-Bellman(HJB) *** interest in ADP and the AC solutions are escalating with time,there is a dire need to consider possible enabling factors for their implementations.A typical AC structure consists of two interacting nns,which is computationally *** this paper,a new architecture,called the ’cost-function-based single network adaptive critic(J-snAC)’ is presented,which eliminates one of the networks in a typical AC *** approach is applicable to a wide class of nonlinear systems in *** order to demonstrate the benefits and the control synthesis with the J-snAC,two problems have been solved with the AC and the J-snAC *** are presented,which show savings of about 50% of the computational costs by J-snAC while having the same accuracy levels of the dual network structure in solving for optimal ***,convergence of the J-snAC iterations,which reduces to a least-squares problem,is discussed;for linear systems,the iterative process is shown to reduce to solving the familiar algebraic Ricatti equation.

关键词： Approximate dynamic programming Optimal control nonlinear control Adaptive critic Cost-functionbased single network adaptive critic J-snAC architecture

Inflammatory bowel disease: An increased risk factor for neurologic complications

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World Journal of Gastroenterology 2014年第5期20卷 1228-1237页

作者： Germán Morís neurology Department Hospital Universitario Central Asturias

Only a very few systematic studies have investigated the frequency of neurologic disorders in patients with Crohn’s disease (CD) and ulcerative colitis (UC), which are the two main types of inflammatory bowel disease (IBD). Results have been inconsistent and variable, owing to differences in case-finding methods and evaluated outcomes in different studies. The most frequent neurologic manifestations reported in CD and UC populations are cerebrovascular disease (with either arterial or venous events), demyelinating central nervous system disease, and peripheral neuropathy (whether axonal or demyelinating); however, the literature describes numerous nervous system disorders as being associated with IBD. The pathogenesis of nervous system tissue involvement in IBD has yet to be elucidated, although it seems to be related to immune mechanisms or prothrombotic states. The recently-introduced tumor necrosis factor (TnF) inhibitors have proven successful in controlling moderate to severe IBD activity. However, severe neurologic disorders associated with TnF inhibitors have been reported, which therefore raises concerns regarding the effect of anti-TnF-α antibodies on the nervous system. Although neurological involvement associated with IBD is rarely reported, gastroenterologists should be aware of the neurologic manifestations of IBD in order to provide early treatment, which is crucial for preventing major neurologic morbidity.

关键词： Extraintestinal manifestations Inflammatory bowel disease Multiple sclerosis neuropathy stroke Tumor necrosis factor inhibitor

Approximate analytical solutions and mean energies of stationary schrodinger equation for general molecular potential

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Chinese Physics B 2021年第7期30卷 116-131页

作者： Eyube E s Rawen B O Ibrahim n Department of Physics School of Physical SciencesModibbo Adama University of TechnologyP M B 2076 YolaAdamawa StateNigeria Directorate of Basic and Remedial studies Abubakar Tafawa Balewa University(ATBU)P M B 750001BauchiBauchi StateNigeria Department of Physics Faculty of ScienceP M B 1069MaiduguriBorno StateNigeria

The schrodinger equation is solved with general molecular potential via the improved quantization *** for bound state energy eigenvalues,radial eigenfunctions,mean kinetic energy,and potential energy are obtained in compact *** modeling the centrifugal term of the effective potential,a Pekeris-like approximation scheme is ***,we use the Hellmann–Feynman theorem to derive the relation for expectation *** state energy eigenvalues,wave functions and meanenergies of Woods–saxon potential,Morse potential,Mobius squared and Tietz–Hua oscillators are deduced from the general molecular *** addition,we use our equations to compute the bound state energy eigenvalues and expectation values for four diatomic molecules viz.H_(2),CO,HF,and O_(2).Results obtained are in perfect agreement with the data available from the literature for the potentials and *** also show that as the vibrational quantum number increases,the mean kinetic energy for the system in a Tietz–Hua potential increases slowly to a threshold value and then *** in a Morse potential,the mean kinetic energy increases linearly with vibrational quantum number increasing.

关键词： general molecular potential schrodinger equation improved quantization rule

Clinical,laboratory,and therapeutic differences between immunoglobulin E-mediated and non-immunoglobulin E-mediated cow’s milk protein allergy in children

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World Journal of Clinical Pediatrics 2025年第1期14卷 78-92页

作者： Hasan M Isa Marwa J Abdulnabi nawra s naser Fatema n Lahmda noor M AlAnsari Zahra H Isa Afaf M Mohamed Department of Pediatrics Salmaniya Medical ComplexManama 26671Bahrain Department of Pediatrics Arabian Gulf UniversityManama 26671Bahrain Faculty of Medicine Mansoura UniversityMansoura 35516Egypt Public Health Directorate Ministry of HealthManama 26671Bahrain

BACKGROUnD Although breast milk is ideal for newborns,in some cases,it is replaced with cow’s milk,which contains proteins that increase the risk of cow’s milk protein allergy(CMPA).AIM To evaluate CMPA prevalence in Bahrain and compare clinical characteristics of children with immunoglobulin E(IgE)-and non-IgE-mediated *** This retrospective cohort study examined children with CMPA diagnosed at the pediatric gastroenterology outpatient clinic of the salmaniya Medical Complex,Bahrain,between 2014 and 2022,and assessed CMPA *** presentations,laboratory findings,dietary modifications,and outcomes were compared between children with IgE-mediated and non-IgE-mediated *** variables were compared using Fisher’s exact test or Pearson’sχ2 test,whereas continuous variables were compared using student’s t-test or the Mann-Whitney U *** Of 8332 patients,6022(72.3%)adhered to their *** them,618(10.3%)were suggested of having CMPA and 595(96.3%)were included;CMPA prevalence was 2%.Most patients were Bahraini(93.8%)and males(55.3%).non-IgE-mediated type accounted for 77.3%cases and IgE-mediated type,22.7%.IgE-mediated CMPA presented more in boys(P=0.030),and later in life(5.1 months±4.5 months vs 4.2 months±4.2 months,P=0.016,95%CI:0.08-1.73),had more associated diseases(Pnd presented with more cutaneous(P=0.024)and respiratory(P=0.003)manifestations,severe symptoms[rash/dry skin(P=0.031),facial swelling/angioedema(P=0.003),failure to thrive(P=0.013),apparent life-threatening event(Pnd positive physical findings(P=0.002)than non-IgE-mediated *** patients were exclusively fed cow milk formula(50.3%).The amino acid-based formula(AAF)was most prescribed(60.5%)with no difference between the two types(P=0.173).Although breastfeeding was recommended to 49.6%,only 8.2%were exclusively ***-mediated CMPA was associated with a longer follow-up duration than non-IgE-mediated CMPA(17.3 months±14.0 mo

关键词： Children Milk allergy Immunoglobulin E Breastfeeding Infant formula Bahrain