Results 41 to 50 of about 2,844,522 (254)

Performance prediction and procurement in practice : assessing the suitability of commodity cluster components for wavefront codes [PDF]

, 2009
The cost of state-of-the-art supercomputing resources makes each individual purchase a length and expensive process. Often each candidate architecture will need to be benchmarked using a variety of tools to assess likely performance.
Mills, A. B., Jarvis, S. A.; id_orcid, Herdman, J. A., Mudalige, Gihan R., Vadgama, A., Davis, J. A., Holt, J., Jarvis, Stephen A., Smith, J. A., Hammond, Simon D., Hammond, S. D., Miller, I., Mudalige, G. R.   +12 more
core   +1 more source

Monolithically 3D‐Printed Spectral‐Spatial Meta‐Authenticators

Advanced Materials, EarlyView.
A single height map printed in a low‐index resin by two‐photon lithography encodes multiple visible wavelengths in one metasurface without any polarization optics. A fabrication‐aware optimization folds the printable height levels into the design, so the device is printed as optimized.
Cherry Park, Shiqi Hu, Youngsun Jeon, Junsuk Rho   +3 more
wiley   +1 more source

ONLINE SURFACE MEASUREMENT WITH DIGITAL SHACK–HARTMANN WAVEFRONT SENSOR

, 2010
Shack–Hartmann wavefront sensor splits the incident wavefront into many subsections and transfers the distorted wavefront detection into the centroid measurement. The accuracy of the centroid measurement determines the accuracy of the SHWS.
XIANG LI, ZHONGPING FANG, LIPING ZHAO, XIAOMING YIN   +3 more
core   +1 more source

Chamanzar/WAVEFRONT: WAVEFRONT

, 2023
<p>The repository includes code and software related to the paper entitled Chamanzar, Elmer, Shutter, Hartings and Grover (2023).</p> <p>Presence of spreading depolarizations is known to indicate worsening brain injuries.
Chamanzar
core   +1 more source

Spatial Homeotropic and Planar Liquid Crystal Alignment Patterning

Advanced Materials Interfaces, EarlyView.
A voltage‐assisted two‐step photoalignment methodology achieves precise micro‐patterning of alternating planar and homeotropic liquid crystal domains. Applying an AC electric field during in situ laser illumination minimizes phase retardation, reducing the required exposure dose. This cooperative mechanism enables high‐resolution spatial patterning and
Mingye Li, Inge Nys, Jeroen Beeckman
wiley   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

Experimental Investigation of Pixelated Instantaneous Phase-Shifting Interferometry Using Liquid Crystal Spatial Light Modulator

Photonics
A pixelated instantaneous phase-shifting interferometry (PSI) using a phase-only liquid crystal spatial light modulator (LC-SLM) is developed and experimentally validated.
Fuzhong Bai, Zhiwen Zhao, Jiayi Chen, Xiaojuan Gao, Yubo Chang, Jianxin Wang, Jixiang Cai   +6 more
doaj   +1 more source

Parallelising wavefront applications on general-purpose GPU devices [PDF]

, 2010
Pipelined wavefront applications form a large portion of the high performance scientific computing workloads at supercomputing centres. This paper investigates the viability of graphics processing units (GPUs) for the acceleration of these codes, using ...
Pennycook, Simon J., Mudalige, Gihan R., Hammond, Simon D., Jarvis, Stephen A.   +3 more
core  

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source