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Toplam kayıt 1731, listelenen: 1228-1247
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Performance of leonardite humic acid as a novel superplasticizer in Portland cement systems
(ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 2021)Significance of superplasticizers (SPs) in sustainable development of concrete industry is well known regarding to reduced water and Portland cement content of the mixtures. Development of eco-efficient alternative types ... -
Performance prediction and adaptation for database management system workload using Case-Based Reasoning approach
(PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2018)Workload management in a Database Management System (DBMS) has become difficult and challenging because of workload complexity and heterogeneity. During and after execution of the workload, it is hard to control and handle ... -
Pericardial fluid and vascular tissue engineering: A preliminary study
(IOS PRESSNIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS, 2021)BACKGROUND: The heart is surrounded by a membrane called pericardium or pericardial cavity. OBJECTIVE: In this study, we investigated the pericardial fluid (PF) for coating polycaprolactone (PCL) scaffolds. PFS, which ... -
Permanent densification of amorphous zinc oxide under pressure: A first principles study
(ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2018)Ab initio simulations within a generalized gradient approximation are carried out to investigate the densification mechanism of amorphous zinc oxide (a-ZnO) under hydrostatic pressure. In contrast to the crystalline ZnO, ... -
PERSONALIZATION IN MARKETING: HOW DO PEOPLE PERCEIVE PERSONALIZATION PRACTICES IN THE BUSINESS WORLD?
(CALIFORNIA STATE UNIV, 2023)With emerging digital technologies, personalization has become a key activity for marketing strategy to gain competitive success in customer relationships. The aim of this study is to develop and empirically assess a ... -
Personnel Selection By Using Fuzzy Hybrid Multi Criteria Decision Making Methodology
(TÜBİTAK ULAKBİM Ulusal Akademik Ağ ve Bilgi Merkezi Cahit Arf Bilgi Merkezi, 2020)Personnel selection problem is a multi criteria decision-making problem which is very important for businesses and includes multiple evaluation criteria and uncertainty. In this study, fuzzy TOPSIS, Fuzzy Gray relational ... -
pH- and temperature-responsive amphiphilic diblock copolymers of 4-vinylpyridine and oligoethyleneglycol methacrylate synthesized by RAFT polymerization
(ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2014)Diblock copolymers of 4-vinylpyridine (4VP) and oligoethyleneglycol methyl ether methacrylate (OEGMA) were synthesized for the first time using RAFT polymerization technique as potential drug delivery systems. Effects of ... -
Phase transition of ZrN under pressure
(TAYLOR & FRANCIS LTD, 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND, 2019)A first principles constant pressure approach is carried out to probe the high-pressure behaviour of the rocksalt (RS) structured zirconium nitride (ZrN). The existence of first order reconstructive phase transition from ... -
Phase-Synchronized Fluidic Oscillator Pair
(AMER INST AERONAUTICS ASTRONAUTICS, 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA, 2019)The relative phase of oscillating jets from a pair of fluidic oscillators was synchronized in this work. The means for this synchronization was mutual interaction through a shared feedback channel between the two oscillators. ... -
The photoionization cross section of a hydrogenic impurity in a multi-layered spherical quantum dot
(AIP Publishing1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501, 2012)In this study, we have investigated the photoionization cross section of an on-center hydrogenic impurity in a multi-layered spherical quantum dot. The electronic energy levels and their wave functions have been determined ... -
Photoluminescent and superhydrophobic nanocomposites of perovskite nanocrystals
(ELSEVIER, 2024)Perovskite nanocrystals (PNCs) have found extensive utility across diverse technological applications in optoelectronics; nevertheless, their susceptibility to environmental instability poses a significant constraint on ... -
Photonic-lantern-based coherent LIDAR system
(OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2015)In this work, a photonic-lantern-based coherent LIDAR system is experimentally demonstrated and the voltage signal-to-noise ratio improvement is analyzed. A voltage signal-to-noise ratio (SNRV) improvement of 2.8 is ... -
Photophysical properties of self-assembled supramolecular peptide nanofiber organic semiconductors
(AMER CHEMICAL SOC, 2015)..... -
Photosensing Properties of Pentacene OFETs Based on a Novel PMMA Copolymer Gate Dielectric
(IEEE, 2015)In the present work, bottom-gate top-contact organic field effect transistors (OFETs) were fabricated by evaporating a pentacene semiconductor film on top of a new insulating poly(methyl methacrylate) (PMMA) copolymer ... -
Physical layer authentication for extending battery life
(ELSEVIERRADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS, 2021)Increasing population density in cities, and the increasing demand for efficiency in resource usage call for architectures enabling smart cities, such as the Internet of Things (IoT). In most such scenarios, the data ... -
pi-Conjugated donor-acceptor small molecule thin-films on gold electrodes for reducing the metal work-function
(ELSEVIER SCIENCE SAPO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2016)This paper reports the design, facile synthesis and purification of four pi-conjugated donor-acceptor small molecules comprising heteroaromatic units, DA-1-DA-4, for surface and electronic structure modification of gold ... -
PI-controlled ANN-based Energy Consumption Forecasting for Smart Grids
(IEEE, 2015)Although Smart Grid (SG) transformation brings many advantages to electric utilities, the longstanding challenge for all them is to supply electricity at the lowest cost. In addition, currently, the electric utilities must ... -
PI-V plus Sliding Mode Based Cascade Control of Magnetic Levitation
(IEEE, 2015)Magnetic levitation systems are able to provide frictionless, reliable, fast and economical operations in wide-range applications. The effectiveness and applicability of these systems require precise feedback control ... -
Planar MEMS Variable Optical Attenuators (VOAs) with Linear Attenuation-Voltage Characteristics
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 01.01.2019)Variable optical attenuators (VOAs) are essential components in wavelength division multiplexing (WDM) networks, light waveform generators, and optical fiber test equipment. Among various types of planar MEMS VOAs, a shutter ... -
Plasmon Enhanced Emission of Perovskite Quantum Dot Films
(CAMBRIDGE UNIV PRESS, 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA, 2018)We propose and demonstrate the photoluminescence enhancement of CsPbBr3 perovskite quantum dot films in the presence of Au nanoparticles. Embedded into a polymer matrix, Au nanoparticle-quantum dot film assemble prepared ...