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Now showing items 4966-4985 of 7544

MAC Security and Security Overhead Analysis in the IEEE 802.15.4 Wireless Sensor Networks

Xiao, Yang; Chen, Hsiao-Hwa; Sun, Bo; Wang, Ruhai; Sethi, Sakshi (2006)

Sensor networks have many applications. However, with limited resources such as computation capability and memory, they are vulnerable to many kinds of attacks. The IEEE 802.15.4 specification defines medium access control ...
Machine learning based spectrum decision in cognitive radio networks

Araseethota Manjunatha, Koushik (University of Alabama Libraries, 2018)

The cognitive radio network (CRN) is considered as one of the promising solutions to address the issue of spectrum scarcity and eective spectrum utilization. In a CRN the Secondary User (SU) is allowed to occupy the spectrum ...
Machine learning enhanced 5G vehicle-to-everything (V2X) communication networks with millimeter-waves and terahertz links

Rasheed, Iftikhar (University of Alabama Libraries, 2020)

With the incoming of 5G communications, Vehicular Networks have the hope to achieve ultra-high data transmission rate with extremely low end-to-end delay. However, the dynamic nature of transportation traffic and increased ...
Machining using a diamond-coated cutting tool: finite element simulations and experiments

Qin, Feng (University of Alabama Libraries, 2012)

Chemical vapor deposition (CVD) diamond-coated tools have the advantage of a low cost and flexibility in fabrications when compared with sintered polycrystalline diamond (PCD) tools in machining lightweight high-strength ...
Madame Octavia Walton Le Vert, 1810-1877

Delaney, Caldwell (University of Alabama Libraries, 1952)

The marriage at Augusta in 1809 of Sarah Minge Walker and George Walton united two of Georgia's prominent post-Revolutionary families.
“Madmen and fools": mental illness and disability in Middleton and Rowley's The Changeling

McNamee, Hope Elizabeth (University of Alabama Libraries, 2020)

Criticism of The Changeling, while abundant, has historically either neglected the madhouse subplot or treated it as a symbolic reflection of the main plot. While some scholars have examined the historical context of the ...
Madness, the supernatural, and child murder in tragedy

Hutchison, Gennifer Arwen (University of Alabama Libraries, 2017)

Child murder in modern American drama draws heavily from Greek tragic traditions, both stylistically and thematically. The number of playwrights (and authors) who have chosen to include infanticide in their works in both ...
Maffei 1 with the Hubble Space Telescope

Buta, Ronald J.; McCall, Marshall L. (American Astronomical Society, 2003-03)

High-resolution R, I, and Hα images of the center of Maffei 1, the nearest normal giant elliptical galaxy (M^0/_v = -20.9), have been acquired with the Hubble Space Telescope. At its distance of 3.0 Mpc, 1 pixel in the ...
Magic city jews: integration and public memory in birmingham, alabama, 1871-1911

Young, Melissa Farah (University of Alabama Libraries, 2020-08)

The numerous books and articles that record the actions of Birmingham’s first Jewish residents generally discuss the actions of these transatlantic and domestic migrants in two ways. They either frame the individuals’ daily ...
Magmatism, metamorphism, and deformation in the Mountain Home Metamorphic Complex, Blue Mountains Province, Oregon, and its role in late Jurassic deformation in the western North American Cordillera

Anderson, Bryan Scott (University of Alabama Libraries, 2013)

Orogenesis in the Blue Mountains Province (BMP) of NE Oregon involved the accretion of various tectonostratigraphic terranes in concert with syn-tectonic magmatism. Timescales of deformation, metamorphism and magmatism in ...
Magnetic and Microwave Properties of Ferrimagnetic Zr-substituted Ba2Zn2Fe12O22 (Zn-Y) Single Crystals

Jalli, Jeevan; Hong, Yang-Ki; Bae, Seok; Lee, Jae-Lin; Abo, Gavin S.; Park, Ji-Hoon; Choi, Byoung-Chul; Mewes, Tim; Kim, Seong-Gon; Gee, Sung-Hoon; Nam, In-Tak; Tanaka, Terumitsu (2011)
Magnetic and Structural Properties of MnBi Multilayered Thin Films

Mankey, Gary (AIP Publishing, 2014-02-27)

Magnetic and structural properties of MnBi films with thicknesses up to 50 nm were investigated. Thin films of the MnBi LTP (Low Temperature Phase) were fabricated onto silica-glass substrates by sputter-deposition of Bi/Mn ...
Magnetic anisotropies and dynamic magnetic properties in multilayered thin films

Beik Mohammadi, Jamileh (University of Alabama Libraries, 2017)

Theoretical and experimental research on magnetic materials and magnetic devices intend to investigate novel materials and structures which can be used for the next generation spintronic devices. Moreover, it is essential ...
The Magnetic Anisotropy and Domain Structure of Permalloy Antidot Arrays

Mankey, Gary (2000-04-28)

The magnetic properties of antidot arrays in permalloy films were studied using magnetic force microscopy (MFM), the magneto-optical Kerr effect (MOKE), and torque magnetometry. New observations of the magnetic domain ...
Magnetic anisotropy graded media and Fe-Pt alloy thin films

Lu, Zhihong (University of Alabama Libraries, 2009)

Anisotropy graded media is promising to overcome the writability problem in achieving ultrahigh areal density for magnetic recording media. To more conveniently study and compare various media with regard to a particular ...
Magnetic Behavior of ₁ and CoxNi(1−x) Pseudomorphic Films

Mankey, Gary (1998-06-04)

We set out to compare the ferromagnetic behavior of ₁ and CoₓNi(1−ₓ) films of varying stoichiometry epitaxially grown on Cu(100). The thickness chosen was 5 ML over a wide alloy composition range. Using a scaling law for ...
Magnetic heating of Fe3O4 nanoparticles and magnetic micelles for a magnetothermally-triggered drug delivery system for cancer therapy

Bennett, James Brandon (University of Alabama Libraries, 2012)

Magnetic nanoparticles, MNPs, combined with stimuli-responsive polymers show potential to enhance the efficacy of cancer therapy in multifunctional nanoscale drug delivery systems. This project investigates the use of iron ...
Magnetic Order and Phase Transitions in Fe_50Pt_50–xRh_x

Mankey, Gary (International Union of Crystallography, )

Polarized and unpolarized neutron diffraction techniques have been applied to study the temperature-dependent magnetic and structural properties of four 200 nm-thick (Fe_50)(Pt_50-x)(RH_x) films with x = 5, x = 10, x = ...
Magnetic Properties and Structure of Low Temperature Phase MnBi with Island Structure

Mankey, Gary (2017-02-22)

The magnetic properties of the low temperature phase (LTP) MnBi thin films of islands structure are discussed. The LTP MnBi islands are formed onto silica substrates after the multilayers Bi(3.2nm)/Mn(2nm)x N are deposited ...
Magnetic properties and structure of Mn-x alloy thin films

Zhao, Siqian (University of Alabama Libraries, 2018)

Among the rare earth free/less permanent magnet candidates, the L10 MnAl, L10 MnGa and D022 Mn3-δGa (δ=0~1) exhibit high magnetic anisotropy energy, which is of the order of 10^7 erg/cm3, despite the spin orbit coupling ...

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