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    Wyświetlanie 1-15 z 15
    Tytuł:
    Effect of Vehicle Composition and Delay on Roundabout Capacity under Mixed Traffic Conditions
    Autorzy:
    Abhigna, D.
    Kondreddy, S.
    Ravi Shankar, K. V. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/223955.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    critical gap
    vehicle type
    delay
    capacity
    simulation
    circulation flow
    pojazd
    opóźnienie
    pojemność
    symulacja
    Opis:
    Roundabouts are replacing conventional unsignalized intersections in many parts of the world (Polus and Shmueli, 1997). Capacity estimation is necessary for designing a new roundabout, to analyze and improve the existing roundabout facilities. There are several methods to estimate the capacity of the roundabout, but most of them are for homogeneous lane based traffic conditions and not applicable for mixed traffic conditions. This study tries to find out the applicability of the existing methods to mixed traffic conditions, identify the effect of vehicle composition, travel time and delay on capacity. In this study, data was collected from two roundabouts located in Mysore, Karnataka and Rajahmundry, Andhra Pradesh in India. Capacities for both the roundabouts are calculated using the existing methods and compared. VISSIM simulation model has been developed and analyzed for different vehicle compositions scenarios. It was observed that vehicle composition of the traffic influences the roundabout capacity. Since the entry capacity of a roundabout varies significantly with the vehicle composition of the traffic at the roundabout, it is necessary to incorporate this factor into the existing capacity estimation models.
    Źródło:
    Archives of Transport; 2016, 40, 4; 7-14
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Floristic inventory of the habitats of the endangered montane grassland bird Nilgiri Pipit (Anthus nilghiriensis) at Palani Hills and Nilgiri Hills of southern Western Ghats, India
    Autorzy:
    Arigela, Ravi Kiran
    Singh, Rajeev Kumar
    K, Althaf Ahamed Kabeer
    CK, Vishnudas
    Powiązania:
    https://bibliotekanauki.pl/articles/2183582.pdf
    Data publikacji:
    2022-03-30
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    endemic
    grasses
    invasive
    Kerala
    native
    Tamil Nadu
    threat
    endemiczny
    trawy
    inwazyjny
    zagrożenie
    Opis:
    The vegetation in the habitats of the endemic montane grassland bird Nilgiri Pipit at Palani Hills and Nilgiri Hills of southern Western Ghats is delineated in this study. Threats to the habitats of the Nilgiri Pipit by invasive plants species is also discussed.
    W niniejszym opracowaniu scharakteryzowano florę i roślinność w siedliskach świergotka, endemicznego ptaka łąk górskich, występującego w Palani Hills i Nilgiri Hills w południowych Ghatach Zachodnich. Wyjaśniono zależność między endemicznymi trawami, a zagrożonym świergotkiem górskim. Omówiono tu również zagrożenia siedlisk świergotka przez inwazyjne gatunki roślin.
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2022, 7; 129-144
    2543-8832
    2545-0999
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vague ideals of implication groupoids
    Autorzy:
    Bandaru, Ravi
    Shum, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/729079.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
    Tematy:
    implication groupoids
    distributive implication groupiods
    vague ideals
    Opis:
    We introduce the concept of vague ideals in a distributive implication groupoid and investigate their properties. The vague ideals of a distributive implication groupoid are also characterized.
    Źródło:
    Discussiones Mathematicae - General Algebra and Applications; 2013, 33, 2; 221-231
    1509-9415
    Pojawia się w:
    Discussiones Mathematicae - General Algebra and Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geochemistry and Tectonic Environments of Aphibolites Bethampudi Anorthosite Complex, Khammam Schist Belt, Telangana, India
    Autorzy:
    Brahmaiah, T.
    Ravi, Ch.
    Basha, U. Imran
    Prasad, K. S. Sai
    Powiązania:
    https://bibliotekanauki.pl/articles/1075430.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    E-MORB and Subduction zone
    Geochemistry and Tectonic Environments
    MORB
    N-MORB
    Tholeiitic
    Opis:
    The Bethampudi anorthosite complex is essentially a leucograbbro (gabboric anorthosite and anorthositic gabbro), anorthosites, amphibolites, and pegmatite occur as concordant or discordent bodies. This work involves detailed geological geochemical investigations of amphibolites so as to reveal their possible protolith. The field relaltions, major, trace and rare earth element compositions of ampbibolites suggest that they are petrogenetically related to anorthosites by fractional crystallisation. Protoliths of the amphibolites show a tholeiitic signature that prevails over the sub-alkaline nature and E-MORB affinities. They were generated from a depleted mantle surface with the influence of a subduction and within-plate components.
    Źródło:
    World Scientific News; 2019, 126; 65-87
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solution and Generalized Ulam-Hyers Stability of a Reciprocal Type Functional Equation in Non-Archimedean Fields
    Autorzy:
    Kumar, B. V. Senthil
    Ravi, K.
    Rassias, J. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1193002.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Generalized Hyers-Ulam stability
    Reciprocal function
    Reciprocal type functional equation
    Opis:
    In this paper, we obtain the general solution of a reciprocal type functional equation of the type f(x+y)=f((k_1 x+k_2 y)/k)f((k_2 x+k_1 y)/k)/(f((k_1 x+k_2 y)/k)+f((k_2 x+k_1 y)/k) ) and investigate its generalized Ulam-Hyers stability in non-Archimedean fields where k>2, k_1 and k_2 are positive integers with k=k_1+k_2 and k_1≠k_2. We also establish Hyers-Ulam-Rassias stability, Ulam-Gavruta-Rassias stability and J.M. Rassias stability controlled by the mixed product-sum of powers of norms for the same equation.
    Źródło:
    World Scientific News; 2016, 31; 48-58
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Knowledge, attitude and practice on exposure to Bisphenol A among dental surgeons in Southern India
    Autorzy:
    Kumar, H.A.
    Soans, C.R.
    Murali, P.S.
    Ravi, R.S.
    Shashidhar, K.
    Shersha, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082822.pdf
    Data publikacji:
    2021
    Wydawca:
    Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
    Tematy:
    knowledge
    attitude
    practice
    Bisphenol A
    composite
    dental surgeons
    Opis:
    Background. Bisphenol A (BPA) is a product in the manufacture of Bis-GMA, which is commonly used in dentistry, and is known to have a number of adverse effects. Objectives. The aim of this study is to evaluate to assess the knowledge, attitude and practice based on exposure and handling of BPA containing materials among dental surgeons for better understanding about the level of care rendered to the patients. Material and methods. A questionnaire survey was conducted on 400 dental surgeons in Southern India. The questionnaire consisted of 20 objective type questions out of which ten questions assessed knowledge and five questions assessed the attitude and five questions to understand the practice related measures taken by the dentist. The data collected were analysed using SPSS version 23. Results. A total of 402 responses were collected for this online questionnaire survey over a period of 2 months. It was found that females showed higher knowledge and attitude towards exposure to BPA which was statistically significant when compared to males. It showed that dentists with more than 20 years of practice had a higher level of knowledge. Though most of the groups agreed fairly on safety practice to be undertaken related to BPA exposure in their clinics, the ones with experience more than 20 years displayed the least positive attitude and dentists with 6-10 years of practice had the least positive behaviour among all. Conclusions. In spite of having a good knowledge regarding the harmful effects of BPA, dental surgeons are not very cautious while using materials containing them on a regular basis. Therefore, there is a need to enhance the awareness with the help of Continuing Dental Education programs or proper instructions on the packaging.
    Źródło:
    Roczniki Państwowego Zakładu Higieny; 2021, 72, 4; 443-451
    0035-7715
    Pojawia się w:
    Roczniki Państwowego Zakładu Higieny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Novel Inconsequential Encryption Algorithm for Big Data in Cloud Computing
    Autorzy:
    Motupalli, Ravi Kanth
    Prasad, Krishna K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2086214.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Lubelska. Instytut Informatyki
    Tematy:
    Hadoop network
    data security
    cyber attacks
    Salsa20
    Opis:
    In the digitalized era of the information technology the expansion of the data usage is very high accounting for about enormous data transaction in day to day life. Data from different sources like sensors, mobile phones, satellite, social media and networks, logical transaction and ventures, etc add an gigantic pile to the existing stack of data. One of the best way to handle this exponential data production is the Hadoop network. Thus in the current scenario big industries and organizations rely on the Hadoop network for the production of their essential data. Focusing on the data generation and organization, data security one of the most primary important consideration was left unnoticed making data vulnerable to cyber attacks and hacking. Hence this article proposes an effective mixed algorithm concept with the Salsa20 and AES algorithm to enhance the security of the transaction against unauthorised access and validates the quick data transaction with minimal encryption and decryption time. High throughput obtained in this hybrid framework demonstrates the effectiveness of the proposed algorithmic structure over the existing systems
    Źródło:
    Journal of Computer Sciences Institute; 2022, 23; 140--144
    2544-0764
    Pojawia się w:
    Journal of Computer Sciences Institute
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Signal Superposition Model with Mineralogy Based Spectroscopic Dielectric Model in Wireless Underground Sensor Networks
    Autorzy:
    Nethravathi, K. A.
    Shankar, S. Ravi
    Powiązania:
    https://bibliotekanauki.pl/articles/226695.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Minerology Based Spectroscopic Dielectric Model
    Undegroud-Underground
    Underground-Aboveground
    Aboveground-Underground
    Opis:
    The propagation of EM waves in soil is defined by permittivity and permeability which are in turn affected by the soil parameters such as soil moisture and texture. Therefore, a suitable Dielectric Model like MBSDM is required for the channel characterization of WUSN. Effect of soil parameters and environmental conditions on signal propagation is modelled using Superposition Model. The simulation of these stages is done in MATLAB for UG-UG, UG-AG and AG–UG scenarios. The system is further implemented on the ZYNQ ZC–702 hardware platform.
    Źródło:
    International Journal of Electronics and Telecommunications; 2019, 65, 4; 693-699
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Augmenting The Cloud Environment Security Through Blockchain Based Hash Algorithms
    Autorzy:
    Ravi Kanth, Motupalli
    Krishna, Prasad K.
    Powiązania:
    https://bibliotekanauki.pl/articles/24083575.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Lubelska. Instytut Informatyki
    Tematy:
    cloud security
    data privacy
    data confidentiality
    hash algorithm
    substitutional encryption
    Opis:
    Many techniques and algorithms are developed to enhance the security in the cloud environment. This helps the users to secure their server from malicious attacks. Hence the study and investigation of the performance enhanced security algorithms is a must demanded field in the research industry. When large number users using same server to store their information in cloud environment security is a must needed component to preserve the privacy and confidentiality of every individual user. This can be further strengthened by detecting the attacks in earlier stages and taking countermeasure to prevent the attack. Thus securing the data network without any leakage and loss of the information is a challenging task in the cloud environment. When the attacks or intrusion is detected after the occurrence there may be damage to the data in the form of data damage or theft. Hence it is necessary to predict and detect the attacks before the occurrence to protect the privacy and confidentiality of the user information.
    Źródło:
    Journal of Computer Sciences Institute; 2023, 26; 1--6
    2544-0764
    Pojawia się w:
    Journal of Computer Sciences Institute
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unsteady MHD thermal diffusive and radiative fluid flow past a vertical porous plate with chemical reaction in slip flow regime
    Autorzy:
    Ravi Kumar, D.
    Jayarami Reddy, K.
    Raju, M. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/265452.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    swobodna konwekcja
    magnetohydrodynamika
    przenoszenie ciepła
    dyfuzja termiczna
    promieniowanie
    reakcja chemiczna
    poślizg
    MHD
    free convection
    heat and mass transfer
    slip flow regime
    thermal diffusion
    radiation
    chemical reaction
    Opis:
    An analytical solution of an MHD free convective thermal diffusive flow of a viscous, incompressible, electrically conducting and heat-absorbing fluid past a infinite vertical permeable porous plate in the presence of radiation and chemical reaction is presented. The flow is considered under the influence of a magnetic field applied normal to the flow. The plate is assumed to move with a constant velocity in the direction of fluid flow in slip flow regime, while free stream velocity is assumed to follow the exponentially increasing small perturbation law. The velocity, temperature, concentration, skin friction, Nusselt number and Sherwood number distributions are derived and have shown through graphs and tables by using the simple perturbation technique.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2019, 24, 1; 117-129
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The checklist of Impatiens Riv. ex L. (Balsaminaceae) in Nilgiri and Palani Hills of southern Western Ghats (India)
    Autorzy:
    S Jeevith
    Arigela, Ravi Kiran
    Rajeev Kumar Singh
    K Althaf Ahamed Kabeer
    C Rajasekar
    C Kunhikannan
    Powiązania:
    https://bibliotekanauki.pl/articles/2183573.pdf
    Data publikacji:
    2022-07-26
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    Balsams
    Endemic
    Grasslands
    Shola forests
    Western Ghats
    niecierpki
    endemiczne
    lasy Shola
    łąki
    Ghaty Zachodnie
    Opis:
    A comprehensive checklist of the genus Impatiens Riv. ex L. (Balsaminaceae) in Nilgiri and Palani of southern Western Ghats, India is presented. After thorough field explorations in these areas from 2012 to 2020 in different seasons, 38 species of Impatiens are recorded, in which 6 species are endemic to Western Ghats and 26 species are endemic to southern Western Ghats of India. Horticultural potential of 18 endemic species of balsam is also discussed.
    W artykule zamieszczono obszerną listę gatunków z rodzaju Impatiens Riv. ex L. (Balsaminaceae), odnotowanych w Nilgiris i na Wzgórzach Palanis (południowa część Ghatów Zachodnich w Indiach). Po dokładnych badaniach terenowych, przeprowadzonych w różnych porach roku w latach 2012-2020, zarejestrowano na analizowanym obszarze 38 gatunków niecierpka, w tym 6 gatunków endemicznych dla całych Ghatów Zachodnich i 26 gatunków dla południowej części Ghatów Zachodnich. Krótko omówiono również potencjał ogrodniczy 18 endemicznych gatunków niecierpków.
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2022, 7; 9-22
    2543-8832
    2545-0999
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A coefficient diagram method based AGC mechanism for an interconnected power system in coordination with UPFC and AC/DC link
    Autorzy:
    Sahani, A.K.
    Shankaro, Ravi
    Sariki, Murali
    Mandal, Rajib Kumar
    Powiązania:
    https://bibliotekanauki.pl/articles/140700.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    AGC
    AC/DC link
    CDM
    GDB
    GRC
    UPFC
    Opis:
    Frequency regulation is in a first line of preference for an interconnected power system. Presence of nonlinearities in the generation systems further raises the complexity level of the problem. In this scenario, this article presents a robust Automatic Generation Control (AGC) mechanism to maintain the frequency and tie-line power of the power system to their nominal values. A Coefficient Diagram Method (CDM) based AGC mechanism including an AC/DC tie-line and Unified Power Flow Controller (UPFC) has been developed and the performance in handling the frequency regulation has been analyzed. The nonlinearities such as Governor Dead-Band (GDB) and Generation Rate Constraint (GRC) are included in the system to analyze the proposed AGC scheme in a more realistic approach. The AC/DC tie-line and UPFC which are included in the proposed AGC scheme provides an immense strength to handle the active power variation as-well-as frequency regulation. To develop a more effective AGC scheme, the parameters of an AC/DC tie-line and UPFC are optimized by successful implementation of the Fruit Fly Optimization Algorithm (FOA). The justification of the proposed AGC scheme has been carried out through a step by step verification such as justifying the CDM based controller, effectiveness of the proposed scheme and robustness of the system against parameters variation. The CDM based controller has been compared with the conventional controllers to elevate the effectiveness and the supremacy of the proposed AGC scheme has been examined by comparing with previously published work. The design and simulation of the work has been carried out by the MATLAB/Simulink® tool box.
    Źródło:
    Archives of Electrical Engineering; 2020, 69, 2; 287-302
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Investigation of the MIMO Space Time Block Code Based Selective Decode and Forward Relaying Network over η–µ Fading Channel Conditions
    Autorzy:
    Shankar, Ravi
    Raman, V. V. Raghava
    Rane, Kantilal Pitamber
    Sarojini, B. K.
    Neware, Rahul
    Powiązania:
    https://bibliotekanauki.pl/articles/2058506.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    5G
    MIMO
    MRC
    non-homogeneous fading channel
    PEP
    S-DF
    SNR
    Opis:
    In this paper, we examine the end-to-end average pairwise error probability (PEP) and output probability (OP) performance of the maximum ratio combining (MRC) based selective decode and forward (S-DF) system over an η–µ scattering environment considering additive white Gaussian noise (AWGN). The probability distribution function (PDF) and cumulative distribution function (CDF) expressions have been derived for the received signal-to-noise (SNR) ratio and the moment generating function (MGF) technique is used to derive the novel closed-form (CF) average PEP and OP expressions. The analytical results have been further simplified and are presented in terms of the Lauricella function for coherent complex modulation schemes. The asymptotic PEP expressions are also derived in terms of the Lauricella function, and a convex optimization (CO) framework has been developed for obtaining optimal power allocation (OPA) factors. Through simulations, it is also proven that, depending on the number of multi-path clusters and the modulation scheme used, the optimized power allocation system was essentially independent of the power relation scattered waves from the source node (SN) to the destination node (DN). The graphs show that asymptotic and accurate formulations are closely matched for moderate and high SNR regimes. PEP performance significantly improves with an increase in the value of η for a fixed value of µ. The analytical and simulation curves are in close agreement for medium-to-high SNR values.
    Źródło:
    Journal of Telecommunications and Information Technology; 2022, 1; 79--92
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis and spectral correlation study of some 3-(3,4-dichlorophenyl)-5-(substituted phenyl)-4,5-dihydro-1H-pyrazole-1-yl-ethanones
    Autorzy:
    Thirunarayanan, G.
    Ravi, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/412390.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Solvent-free cyclization cum acetylation
    N-acetyl pyrazoles
    IR spectra
    NMR spectra
    Hammett correlations
    Opis:
    Some N-acetyl pyrazoles including 3-(3,4-dichlorophenyl)-5-(substituted phenyl)-4,5-dihydro-1H-pyrazole-1-yl-ethanones have been synthesised by solvent free cyclization cum acetylation of chalcones including substituted styryl 3,4-dichlorophenyl ketones using hydrazine hydrate and acetic anhydride in presence of catalytic amount of fly-ash: H2SO4 catalyst. The yield of these N-acetyl pyrazole derivatives are more than 75 %. The synthesised N-acetyl pyrazoline derivatives were characterized by their physical constants and spectral data. The infrared spectral νC=N and C=O (cm-1) frequencies, NMR chemical shifts (δ, ppm) of Ha, Hb, Hc, CH3 protons, C=N, C=O and CH3 carbons of 1-(3-(3,4-dichlorophenyl)-5-(substitutedphenyl)-4,5-dihydro-1H-pyrazole-1-yl) ethanones have been assigned and correlated with Hammett substituent constants and Swain-Lupton’s parameters using single and multi-regression analysis. From the results of statistical analyses the effect of substituents on the above group frequencies and chemical shifts of the acetylated pyrazoles were discussed.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 14; 44-57
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Region of existence of multiple solutions for a class of robin type four-point bvps
    Autorzy:
    Verma, Amit K.
    Urus, Nazia
    Agarwal, Ravi P.
    Powiązania:
    https://bibliotekanauki.pl/articles/2052065.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    Green’s function
    monotone iterative technique
    maximum principle
    multi-point problem
    Opis:
    This article aims to prove the existence of a solution and compute the region of existence for a class of four-point nonlinear boundary value problems (NLBVPs) defined as \[ \begin{array}{lr} -u^{\prime\prime}(x) = \psi(x,u,u^{\prime}), & x \in (0,1) \\ u^{\prime}(0) = \lambda_{1}u(\xi), & u^{\prime}(1) = \lambda_{2}u(\eta) \end{array} \] where $I = [0, 1], 0 < \xi \leq \eta < 1 \text{ and } \lambda_{1} ,\lambda_{2} > 0$. The nonlinear source term $\psi \in C(I \times \mathbb{R}^{2}, \mathbb{R})$ is one sided Lipschitz in $u$ with Lipschitz constant $L_{1}$ and Lipschitz in $u^{\prime}$, such that $\vert \psi(x, u, u^{\prime}) - \psi(x, u, v^{\prime})\vert$. We develop monotone iterative technique (MI-technique) in both well ordered and reverse ordered cases. We prove maximum, anti-maximum principle under certain assumptions and use it to show the monotonic behaviour of the sequences of upper-lower solutions. The sufficient conditions are derived for the existence of solution and verified for two examples. The above NLBVPs is linearised using Newton’s quasilinearization method which involves a parameter k equivalent to $\text{max}_{u} \frac{\delta\psi}{\delta_{u}}$. We compute the range of $k$ for which iterative sequences are convergent.
    Źródło:
    Opuscula Mathematica; 2021, 41, 4; 571-600
    1232-9274
    2300-6919
    Pojawia się w:
    Opuscula Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

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