Results 161 to 170 of about 275 (256)

Calibration‐Free Estimation of Cerebrovascular Reactivity From Resting‐State BOLD fMRI Using Reconstructed Respiratory Fluctuations

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cerebrovascular reactivity (CVR) provides an important index of vascular health and is conventionally quantified using a hypercapnic gas or breath‐hold challenge in conjunction with blood‐oxygen‐level‐dependent functional magnetic resonance imaging (BOLD‐fMRI).
Abdoljalil Addeh, Ethan Church, Muhammad Mahajna, Karen Ardila, Pattarawut Charatpangoon, Alexander D. Cohen, Yang Wang, Rebecca J. Williams, G. Bruce Pike, M. Ethan MacDonald   +9 more
wiley   +1 more source

Bidirectional wavelength-division-multiplexing fibre-free-space optical communications using polarisation multiplexing technique and tunable optical vestigial sideband filter. [PDF]

Commun Eng
Lin HM, Wang CP, Lu HH, Hayle ST, Huang XH, Hsu WW, Chung YC, Bai YY, Okram K, Lu JM.   +9 more
europepmc   +1 more source

Incomplete Spoiling Correction for 3D T1$$ {T}_1 $$ Mapping

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Assess the impact of incomplete spoiling and spatial saturation on T1$$ {T}_1 $$ mapping using the variable flip angle (VFA) spoiled gradient recalled echo sequence (SPGR). Develop a correction for incomplete spoiling that results in an accurate estimate of T1$$ {T}_1 $$, essential for quantitative MRI applications.
Gabriela Belsley, Damian J. Tyler, Matthew D. Robson, Elizabeth M. Tunnicliffe   +3 more
wiley   +1 more source

Joint Transmit Power Allocation and Splitting for SWIPT Aided OFDM-IDMA in Wireless Sensor Networks. [PDF]

Sensors (Basel), 2017
Li S, Zhou X, Wang CX, Yuan D, Zhang W.
europepmc   +1 more source

Predictive Assessment of Progressive Damage in Mechanically Fastened Glass–Epoxy Composites

Polymer Composites, EarlyView.
Progressive damage in mechanically fastened glass–epoxy composites. ABSTRACT Ensuring the structural integrity of advanced composites necessitates precise methodologies for forecasting the onset and progression of damage. This research focused on the predicting progressive damage (PD) for riveted joints composite laminates employing a combined ...
Nabi Mehri Khansari, Mohammadjavad Mazaheri, Naghdali Choupani   +2 more
wiley   +1 more source

Recycled Polyacrylonitrile Nanofiber Interleaves With Graphene Nanoplatelets for Adhesively Bonded Composite Joints: Lap‐Shear and Opening‐Mode Fracture Performance

Polymer Composites, EarlyView.
Textile‐waste Orlon is transformed into recycled PAN nanofiber interleaves for tougher and more damage‐resistant adhesive bondlines. ABSTRACT This study presents a sustainable toughening strategy for adhesively bonded CFRP joints by using electrospun polyacrylonitrile (PAN) nanofiber interleaves produced from virgin PAN (vPAN) and recycled PAN (rPAN ...
Mehmet Emin Çetin, Asım Üstün, Mehmet Okan Erdal, Hasan Ulus   +3 more
wiley   +1 more source

The Effect of Veil Type and Laminate Architecture on the Mechanical and Dynamic Performance of Aramid Fiber Interlayered Thermoplastic Veil/Epoxy Composites: A Comprehensive Evaluation

Polymer Composites, EarlyView.
Graphical summary of the aramid fiber/thermoplastic veil laminates: (a) H‐2/1 and H‐2/2 hybrid architectures, (b) contrasting FG and PI/aramid microstructures, (c) flexural stiffness ranking, and (d) damping response, illustrating that fine‐glass (FG) veils maximize stiffness while PEI, PI, and PEEK veils maximize damping, with PPS providing an ...
Yavuz Selim Tarih
wiley   +1 more source

Performance enhancement of MC-CDMA system through novel sensitive bit algorithm aided turbo multi user detection. [PDF]

PLoS One, 2015
Kumaravel R, Narayanaswamy K.
europepmc   +1 more source

Functionally Graded Nanofiber Interlayers for Hydrothermally Aged Glass/Epoxy Laminates: Mechanical Performance and Electromagnetic Attenuation

Polymer Composites, EarlyView.
Functionally graded Ag/Fe3O4‐loaded PAN nanofiber interlayers for improved mechanical performance and EMI attenuation in GFRP laminates. ABSTRACT Functionally graded Ag/Fe3O4‐loaded polyacrylonitrile (PAN) nanofiber interlayers were placed between selected glass fabric plies to improve interlaminar damage resistance in glass fiber‐reinforced polymer ...
Hasan Ulus, Mehmet Emin Çetin, Bertan Beylergil, Alp Oral Salman, Mürsel Ekrem, Hayrettin Düzcükoğlu   +5 more
wiley   +1 more source