Now showing items 28540-28599 of 63073

• #### Magnetic field topology and chemical spot distributions in the extreme Ap star HD 75049 ﻿

(2015)
Context. Intermediate-mass, magnetic chemically peculiar (Ap) stars provide a unique opportunity to study the topology of stellar magnetic fields in detail and to investigate magnetically driven processes of spot formation. ...
• #### Magnetic Fields and Accretion on T Tauri Stars ﻿

(2015-04-20)
In this thesis, we study magnetic properties of Classical T Tauri Stars (CTTSs) using diffferent analysis methods from different angles. We first implement a least-squares deconvolution (LSD) code to enhance the signal-to-noise ...
• #### Magnetic fields in protoplanetary disks ﻿

(1996)
We study the origin, configuration and effects of magnetic fields in protoplanetary disks. Standard accretion disk models are adopted for protoplanetary disks to determine their electrical properties. A new computational ...
• #### Magnetic Flux Leakage Sensing: Modeling & Experiments ﻿

(2015-07-20)
Nondestructive evaluation (NDE) is the inspection of samples for physical defects without altering the sample in question in any aspect. Magnetic Flux Leakage (MFL) has become one of the most widely used NDE techniques in ...
• #### Magnetic flux leakage sensing: The forward and inverse problems ﻿

(2008)
Nondestructive evaluation (NDE) is the inspection of samples for corrosion and physical defects without altering them in any way. NDE has a critical role in the robotic inspection of energy pipelines in order to prevent ...
• #### Magnetic Flux Leakage System for External Robotic Inspection of Oil and Gas Pipelines ﻿

(2015-04-24)
Pipelines transport invaluable energy resources such as crude oil and natural gas over long distances. The integrity of the piping system in terms of safety of the process is then of high importance. However, pipes are ...
• #### Magnetic forces enable controlled drug delivery by disrupting endothelial cell-cell junctions ﻿

(2017)
The vascular endothelium presents a major transport barrier to drug delivery by only allowing selective extravasation of solutes and small molecules. Therefore, enhancing drug transport across the endothelial barrier has ...
• #### Magnetic helicity injection and velocity characteristics of rotating sunspots ﻿

(2011)
This thesis presents calculations of the magnetic helicity injection due to rotating sunspots and a determination of the characteristics of the rotating sunspots in the active regions with simple magnetic configurations. ...
• #### Magnetic measurements on chrome-cesium alum below 1° K ﻿

(1961)
The static and ballistic magnetic susceptibilities of a pressed powder sample of chrome-cesium alum, which was compounded in this laboratory, have been studied as a function of entropy at temperatures obtained by adiabatic ...
• #### Magnetic measurements on single crystals of ferric alum below 0.1&deg;K ﻿

(1957)
Abstract Not Available.

(1958)
• #### Magnetic Modeling of the Solar Corona ﻿

(2011)
The magnetic field is the dominant force in the Sun's outer atmosphere, the corona. It determines the large-scale structure of the corona, governs the small-scale activity that heats the plasma, and powers energetic transient ...
• #### Magnetic nanomaterials for applications in magnetic resonance imaging and cancer stem cell biology ﻿

(2014-11-04)
Magnetic nanomaterials are uniquely suited for applications in biology and medicine. With size compatibility, tunable physical properties, and the capacity for external magnetic control, nanoscale magnetic particles have ...
• #### Magnetic pair creation transparency in gamma-ray pulsars ﻿

(2012)
Magnetic pair creation, Î³ [arrow right] e + e - , is a key component in polar cap models of gamma-ray pulsars, and has informed assumptions about the still poorly understood radio emission. The Fermi Gamma-Ray Space ...
• #### Magnetic properties of chrome potassium alum below 1.0&deg; Kelvin ﻿

(1960)
Abstract Not Available.

(1977)
• #### Magnetic purification and spectral dependence onpH of surfactant suspended single wall carbon nanotubes ﻿

(2004)
Many properties of single wall carbon nanotubes (SWNTs) are unique and advantageous. The electrical, thermal, and strength properties of SWNT are highly desirable for many applications. To take advantage of these properties ...
• #### Magnetic purification of a sample ﻿

(2011-05-10)
Methods for separating magnetic nanoparticles are provided. In certain embodiments, a method is provided for separating magnetic nanoparticles comprising: providing a sample comprising a plurality of magnetic nanoparticles; ...
• #### Magnetic recording on co-alloy perpendicular multilayers ﻿

(1998)
Perpendicular recording has the potential to achieve high-density data storage. As the linear density approaches to the superparamagnetic limit, traditional longitudinal recording may give way to perpendicular recording. ...
• #### Magnetic susceptibility studies in the dual hydrous oxide system NiO–Al_O_ ﻿

(1954)
Nickelous oxide, NiO, as normally prepared, consists of crystals larger than the colloidal range of particle size, and exhibits a transformation at about 250°C, detectable by back reflection x-ray diffraction, magnetic ...
• #### Magnetic tape coder and decoder ﻿

(1965)
The need for the magnetic tape coder and decoder system and the requirements set forth for its operation are discussed. The coder output which is to be recorded serially on one channel of a frequency modulated tape recorder ...
• #### Magnetic trapping of metastable 3P2 atomic strontium ﻿

(2003-01-13)
• #### Magnetically Controlled Accretion on the Classical T Tauri Stars GQ Lupi and TQ Hydrae ﻿

(2013)
We present high spectral resolution (R ≈ 108,000) Stokes V polarimetry of the classical T Tauri stars (CTTSs) GQ Lup and TW Hya obtained with the polarimetric upgrade to the HARPS spectrometer on the ESO 3.6 m telescope. ...
• #### Magnetism and Fermi surface in heavy fermion metals ﻿

(2009)
With a multitude of different phases and quantum critical points, heavy fermion materials should reign supreme as the prototype for competing order, a major contemporary theme in condensed matter physics. One key feature ...
• #### Magnetism, chemical spots, and stratification in the HgMn star ϕ Phoenicis ﻿

(2012)
Context. Mercury-manganese (HgMn) stars have been considered as non-magnetic and non-variable chemically peculiar (CP) stars for a long time. However, recent discoveries of the variability in spectral line profiles have ...
• #### Magnetite nanoparticles for removal of arsenic from drinking water ﻿

(2007)
Arsenic has become a major contaminant of concern due to the increased knowledge of its toxicological and carcinogenic effects on human health, causing the maximum contaminant level (MCL) to be lowered from 50mug/L to ...
• #### Magnetization and magnetoresistance in iron intercalated transition metal dichalcogenides ﻿

(2016-04-26)
The understanding of magnetism in strongly correlated electronic systems is a vital area of research. Not only is it linked to other phenomena like high temperature superconductivity in the cuprates and iron pnictides, but ...
• #### Magnetization Dynamics from Time-Dependent Noncollinear Spin Density Functional Theory Calculations ﻿

(2015)
A computational scheme, based on a time-dependent extension of noncollinear spin density functional theory, for the simultaneous simulation of charge and magnetization dynamics in molecular systems is presented. We employ ...

(1960)

(1966)
• #### Magnetization measurements near the superconducting transition temperature ﻿

(1967)
The thermodynamically reversible phase transition of a metal into a superconducting state has a critical field curve, which can be represented by: The difference in the specific heat of the two phases is given by ...

(1971)
• #### Magneto - Gas Sigma Xi Lecture ﻿

(1962-03-02)
• #### Magneto-mechanical Neuromodulation ﻿

(2015-04-24)
Noninvasive control of the electrical activity in specific cells in the brain would transform fundamental neuroscience research and the development of therapeutic technologies. Current neural stimulation methods such as ...
• #### Magneto-optical Kerr effect and magnetic circular dichroism in ferromagnetic indium-manganese-arsenic/gallium-antimony heterostructures ﻿

(2002)
This thesis describes a Magneto-Optical Kerr Effect (MOKE) and Magnetic Circular Dichroism (MCD) study of ferromagnetism in III-V magnetic semiconductor heterostructures. This work was initiated due to the much recent ...

(1998)

(1977)
• #### Magnetoreflection spectroscopy of monolayer transition-metal dichalcogenide semiconductors in pulsed magnetic fields ﻿

(2016)
The authors describe recent experimental efforts to perform polarization-resolved optical spectroscopy of monolayer transition-metal dichalcogenide semiconductors in very large pulsed magnetic fields to 65 T. The experimental ...
• #### Magnetosheath plasma at 60 Re ﻿

(1972)
The Apollo 12 Suprathermal Ion Detector Experiment on the surface of the moon observes magnetosheath plasma as the moon passes out of the earth's magnetosphere. The first six months of SIDE data in the sheath were analyzed ...
• #### Magnetospheric Model Performance During Conjugate Aurora ﻿

(2014-04-23)
At 16:40 UT on August 17th, 2001, the IMAGE satellite was in position to view an auroral storm in the Northern Hemisphere, while the POLAR satellite was simultaneously in position to view the storm in the Southern Hemisphere. ...

(1973)

(1975)
• #### Magnificat ﻿

(1981-02-17)
• #### Magnificent desolation--the deserted temple of Luxor, S.W. from top of the first pylon, Egypt (48) ﻿

(1904)
View of the temple of Luxor
• #### The magnificent jewelery of the Pharaohs (Queen Ahhotep, 17th Century B.C.): Cairo Museum, Egypt (13) ﻿

(1904)
Pharaoh's jewelry in museum
• #### 'Magnificent Obsession' At RMC ﻿

(1961-04-21)
• #### Magnitude estimation of conceptual data dimensions for use in sonification ﻿

(2000)
Most data exploration tools are exclusively visual, failing to exploit the advantages of the human auditory system, and excluding students and researchers with visual disabilities. Sonification uses non-speech audio to ...
• #### Magnitude Squared Design of Recursive Filters with the Chebyshev Norm Using a Constrained Rational Remez Algorithm ﻿

(1994-05-01)
We describe a Remez type exchange algorithm for the design of stable recursive filters for which the Chebyschev norm of H(w) - F(w) is minimized, where H(w) and F(w) are the realized and desired magnitude squared frequency ...
• #### Magnitude Squared Design of Recursive Filters with the Chebyshev Norm Using a Constrained Rational Remez Algorithm ﻿

(1994-10-01)
We describe a Remez type exchange algorithm for the design of stable recursive filters for which the Chebyschev norm of H(w) - F(w) is minimized, where H(w) and F(w) are the realized and desired magnitude squared frequency ...
• #### Magnitude Weighting and Time Segmentation for Phase-Only Reconstruction of Signals ﻿

(1981-04-01)
Phase-only reconstruction of signals and its application to blind-deconvolution were introduced recently by Oppenheim, and by Hayes, et.al. In this report, we briefly present another description of this phase-only ...
• #### Magouta (Old tune of horse drivers) ﻿

(1979-03-09)
• #### Magruder To Talk On Student Role In Missions Program ﻿

(1958-10-24)

(1846)
• #### Maguire ﻿

(1964-11-12)
• #### Maguire to Speak at Religious Week Observance Here ﻿

(1964-10-22)
• #### The Mah'mil. ﻿

(1836)
A mahh'mil, a square skeleton-frame of wood with a pyramidal top and cover of black brocade, on the back of a camel led by a man. Engraving (prints).
• #### Mahammedan Cemetery, Cairo, Egypt (1018) ﻿

(1901)
Aerial view of the Mahammedan Cemetery