نتایج جستجو برای: dw

تعداد نتایج: 5506  

Journal: :AJNR. American journal of neuroradiology 2003
Avi Mazumdar Pratik Mukherjee Jeffrey H Miller Hiten Malde Robert C McKinstry

BACKGROUND AND PURPOSE Wallerian degeneration, the secondary degeneration of axons from cortical and subcortical injury, is associated with poor neurologic outcome. Since diffusion-weighted (DW) imaging is sensitive to early changes of cytotoxic edema, DW imaging may depict the acute injury to descending white matter tracts that precedes Wallerian degeneration; this injury is not visible on con...

Journal: :Seizure 2008
Masahiro Mizobuchi Chiharu Tanaka Kazuya Sako Atsuko Nihira Takenori Abe Atsushi Shirasawa

We evaluated the correlation between the periodic sharp wave complexes (PSWC) on EEG and the spreading lesions on diffusion-weighted (DW) magnetic resonance images (MRI) in two cases of Creutzfeldt-Jakob disease (CJD). In Case 1, DW-MRI showed increased signal intensity in bilateral caudate, bilateral parietal, and right temporo-occipital cortex at 7 weeks after onset. EEG showed PSWC of 1Hz fr...

Journal: :Magnetic resonance in medicine 2009
J Michael Tyszka Lawrence R Frank

High-resolution, diffusion-weighted (DW) MR microscopy is gaining increasing acceptance as a nondestructive histological tool for the study of fixed tissue samples. Spin-echo sequences are popular for high-field diffusion imaging due to their high tolerance to B(0) field inhomogeneities. Volumetric DW rapid acquisition with relaxation enhancement (DW-RARE) currently offers the best tradeoff bet...

2014
ELHAJ ELAMIN JAMEL FEKI

The design process of a data warehouse (DW) raises many problems and then is considered as a complex and tedious task. DW designers follow different levels concerning the design process; among these levels the conceptual level gains a significant care in the literature so far. Recently, using a hybrid approach conjugated to a semantic resource is considered as a successful way for designing a D...

Journal: :Journal of food science and technology 2015
Jovana Petrović Jasmina Glamočlija Dejan Stojković Ana Ćirić Lillian Barros Isabel C F R Ferreira Marina Soković

A very well-known and appreciated mushroom, Agrocybe aegerita (Brig.) Sing, was the subject of chemical profiling, antioxidant assays and sensory evaluation test in cream cheese. Methanolic extract obtained from a wild sample of A. aegerita fruiting body was fully chemically identified. Sample was found to be rich in carbohydrates (84.51 g/100 g dw), ash and proteins (6.69 g/100 g dw and 6.68 g...

Journal: :Bioresource technology 2013
Tommy Pepè Sciarria Alberto Tenca Alessandra D'Epifanio Barbara Mecheri Giuseppe Merlino Marta Barbato Sara Borin Silvia Licoccia Virgilio Garavaglia Fabrizio Adani

Improving electricity generation from wastewater (DW) by using olive mill wastewater (OMW) was evaluated using single-chamber microbial fuel cells (MFC). Doing so single-chambers air cathode MFCs with platinum anode were fed with domestic wastewater (DW) alone and mixed with OMW at the ratio of 14:1 (w/w). MFCs fed with DW+OMW gave 0.38 V at 1 kΩ, while power density from polarization curve was...

2009
P. Yan X. R. Wang

Finding a new control parameter for magnetic domain wall DW motion in magnetic nanostructures is important in general and in particular for the spintronics applications. Here, we show that a circularly polarized magnetic field CPMF at gigahertz frequency microwave can efficiently drive a DW to propagate along a magnetic nanowire. Two motion modes are identified: rigid DW propagation at low freq...

Journal: :Angewandte Chemie 2004
Takeshi Kawase Kenji Tanaka Nami Shiono Yohko Seirai Masaji Oda

Manipulation of a magnetic state by a spin-polarized current is one of the exciting topics in solid state physics. We succeeded in driving a magnetic domain wall (DW) in magnetic nanowire by an electric current flowing through the wire. Figure 1 (a) shows a schematic illustration of a top view of a sample. One end of the L-shaped wire is connected to a diamond shaped pad which acts as a DW inje...

Journal: :Molecules 2011
Ashutosh Singh Kebba Sabally Stan Kubow Danielle J Donnelly Yvan Gariepy Valérie Orsat G S V Raghavan

A response surface method was used to optimize the microwave-assisted extraction parameters such as extraction time (t) (min), solvent (methanol) concentration (S) (v/v) and microwave power level (MP) for extraction of antioxidants from potato peels. Max. total phenolics content of 3.94 mg g⁻¹ dry weight (dw) was obtained at S of 67.33%, t of 15 min and a MP of 14.67%. For ascorbic acid (1.44 m...

2006
Jose-Norberto Mazón Juan Trujillo Jens Lechtenbörger

It is widely accepted that a requirement analysis phase is necessary to develop data warehouses (DWs) which adequately represent the information needs of DW users. Moreover, since the DW integrates the information provided by data sources, it is also crucial to take these sources into account throughout the development process to obtain a consistent representation. In this paper, we use multidi...

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