Results 71 to 80 of about 267,997 (294)

Broadband subwavelength imaging of flexural elastic waves in flat phononic crystal lenses

Scientific Reports, 2023
Subwavelength imaging of elastic/acoustic waves using phononic crystals (PCs) is limited to a narrow frequency range via the two existing mechanisms that utilize either the intense Bragg scattering in the first phonon band or negative effective ...
Hrishikesh Danawe, Serife Tol
doaj   +1 more source

The Extraordinary `Superthin' Spiral Galaxy UGC7321. I. Disk Color Gradients and Global Properties from Multiwavelength Observations

, 1999
We present B- and R-band imaging and photometry, H-alpha narrow-band imaging, NIR H-band imaging, and HI 21-cm spectroscopy of the nearby Sd spiral galaxy UGC7321. UGC7321 exhibits a remarkably thin stellar disk with no bulge component.
Aoki T. E., Barteldrees A., Bergvall N., Bouchet P., Cox A. L., de Blok W. J. G., de Blok W. J. G., de Grijs R., de Jong R. S., Disney M. J., Firmani C., Gerritsen J. P. E., Guibert J., Hamabe M., J. S. Gallagher III, Just A., Karachentsev I., Karachentsev I., Kodaira K., L. D. Matthews, Lequeux J., Makarov D. I., Makarov D. I., Sage L. J., Sasaki T., Secker J., van der Kruit P. C., W. van Driel, Xilouris E. M., Zasov A. V.   +29 more
core   +2 more sources

The Impact of High‐Productivity Processing on the Fatigue Failure of an Additive Manufactured Superalloy HAYNES 282

Advanced Engineering Materials, EarlyView.
The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh, Ahmed Fardan, Tatiana Mishurova, Eduard Hryha   +3 more
wiley   +1 more source

The diagnostic value of narrow-band imaging for early and invasive lung cancer: a meta-analysis

Clinics
This study aimed to compare the ability of narrow-band imaging to detect early and invasive lung cancer with that of conventional pathological analysis and white-light bronchoscopy.
Juanjuan Zhu, Wei Li, Jihong Zhou, Yuqing Chen, Chenling Zhao, Ting Zhang, Wenjia Peng, Xiaojing Wang   +7 more
doaj   +1 more source

Colour analysis of degraded parchment [PDF]

, 2013
Multispectral imaging was employed to collect data on the degradation of an 18th century parchment by a series of physical and chemical treatments. Each sample was photographed before and after treatment by a monochrome digital camera with 21 narrow-band
Giacometti, A, Gibson, A, Macdonald, LW, Terras, M, Weyrich, T   +4 more
core  

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Use of narrow band imaging in a group endoscopy practice

Endoscopy International Open, 2013
Background and study aim: Narrowband imaging (NBI) is an enhanced endoscopic optical technique which filters white light and accentuates imaging of the mucosal vasculature. Potential clinical applications of NBI include endoscopic inspection of Barrett’s
Patrick Yachimski
doaj   +1 more source

Solutions of several theory and technique problems in high-space-resolving hotspot electron temperature diagnosis techniques in inertial confinement fusion

AIP Advances, 2022
In implosion experiments, bremsstrahlung radiation ratios of broad-energy-band x-ray emission intensities (sampled by Ross pair) and narrow-energy-band x-ray emission intensities (sampled by multilayer) are typically used to extract the hotspot electron ...
Kuan Ren, Li Yao, Shenye Liu, Rongqing Yi, Baozhong Mu, Jingtao Zhu, Jie Xu, Wenjie Li, Wanli Shang, Jianjun Dong, Zhiwen Yang, Xing Zhang, Zhurong Cao, Yulong Li, Tao Xu, Zhanyang Guan, Huiyue Wei, Jiamin Yang, Yongkun Ding, Baohan Zhang, Shaoen Jiang, Feng Wang   +21 more
doaj   +1 more source

The Subaru COSMOS 20: Subaru Optical Imaging of the HST COSMOS Field with 20 Filters

, 2015
We present both the observations and the data reduction procedures of the Subaru COSMOS 20 project that is an optical imaging survey of the HST COSMOS field, carried out by using Suprime-Cam on the Subaru Telescope with the following 20 optical filters ...
Arimoto, N., Aussel, H., Capak, P., Carollo, M., Fevre, O. Le, Hayashino, T., Ichikawa, A., Ilbert, O., Kaifu, N., Kajisawa, M., Karoji, H., Kobayashi, M. A. R., Komiyama, Y., Lilly, S., Miyazaki, S., Mobasher, B., Murayama, T., Nagao, T., Ohta, K., Okamura, S., Renzini, A., Rich, M., Salvato, M., Sanders, D. B., Schinnerer, E., Scoville, N., Shimasaku, K., Shioya, Y., Taniguchi, Y., Tasca, L.   +29 more
core   +3 more sources

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

Advanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge, Ahsan Irshad, Umar Jamil, Srosh Fazil, Khuram Liaqat, Kashif Shahzad, Fakhar Alam, Mehboob Alam   +7 more
wiley   +1 more source