Results 41 to 50 of about 58,144 (218)

Dual Hiding in Digital Image Files [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2011
The technique of information hiding is one of information security techniques, which works on embedding information on media in such a way that avoid bringing suspicion of discovering transmission between two ends.
Farah Mohammed
doaj   +1 more source

The blue compact dwarf galaxy I Zw 18: a comparative study of its low-surface-brightness component [PDF]

, 2002
(abridged): Using HST and ground-based optical and NIR imaging data, we investigate whether the blue compact dwarf (BCD) galaxy I Zw 18 possesses an extended low-surface-brightness (LSB) old stellar population underlying its star-forming (SF) regions. We
Fricke, K. J., Green, R. F., Guseva, N. G., Izotov, Y. I., Noeske, K. G., Papaderos, P., Thuan, T. X.   +6 more
core   +2 more sources

Regeneration and Herbivory Across Multiple Forest Types Within a Megafire Burn Scar

Fire
Human activities are increasing the occurrence of megafires that alter ecological dynamics in forest ecosystems. The objective of this study was to understand the impacts of a 610 km2 megafire on patterns of tree regeneration and herbivory across three ...
Devri A. Tanner, Kordan Kildew, Noelle Zenger, Benjamin W. Abbott, Neil Hansen, Richard A. Gill, Samuel B. St. Clair   +6 more
doaj   +1 more source

Modulating Interfacial Potential Gradients in Metal−Carbon Catalysts via Phase‐Engineering for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
It is elucidated that phase engineering of cobalt modulates the interfacial potential gradients of cobalt–carbon electrocatalysts, enhancing the intrinsic electrocatalytic performance. Modulating the dominant crystalline phase of cobalt from a hexagonal close‐packed to a face‐centered cubic enriches the electron density of carbon shells, thereby ...
Ji‐Oh Kim, Hengquan Guo, Seonghee Kim, Jae Bin Park, Seongwook Chae, Taekyun Kwon, Seungjo Hong, Byeong Jin Kim, Guadalupe Arturo De la Garza Gonzalez, Minjoon Park, Jae Ho Kim, Oi Lun Li, Seung Geol Lee, Jin Hong Lee   +13 more
wiley   +1 more source

What Is in the Bank? Assessing Persistent Soil Seed Bank Density of Sclerocactus wrightiae (Cactaceae)

Diversity
Wright fishhook cactus is a small globose cactus endemic to an area of 280,000 ha in south-central Utah and was listed as endangered in October of 1979 by the U.S. Fish and Wildlife Service (USFWS).
David Lariviere, Val Anderson, Robert Johnson, Randy Larsen   +3 more
doaj   +1 more source

The stellar disk thickness of LSB galaxies

, 2004
We present surface photometry results for a sample of eleven edge-on galaxies observed with the 6m telescope at the Special Astrophysical Observatory (Russia).
Barteldrees A., Beijersbergen M., D. Bizyaev, de Blok W. J. G., de Grijs R., de Jong R., Holley-Bockelmann J. K., Karachentsev I., Karachentsev I., Pfenniger D., S. Kajsin, van der Kruit P., Xilouris E. M., Xilouris E. M., Zasov A., Zwaan M.   +15 more
core   +1 more source

Frontier Advances of Emerging High‐Entropy Anodes in Alkali Metal‐Ion Batteries

Advanced Functional Materials, EarlyView.
Recent advances in microscopic morphology control of high‐entropy anode materials for alkali metal‐ion batteries. Abstract With the growing demand for sustainable energy, portable energy storage systems have become increasingly critical. Among them, the development of rechargeable batteries is primarily driven by breakthroughs in electrode materials ...
Liang Du, Kaidi Zhang, Liang Wang, Di Zhao, Mengqing Hu, Mingli Li, Ming Zhou, Zhenzhen Wu, Mengyang Dong, Bo Fu, Porun Liu, Yun Wang, Hongxia Wang, Yuantong Gu, Lei Zhang   +14 more
wiley   +1 more source

On the relation between circular velocity and central velocity dispersion in high and low surface brightness galaxies [PDF]

, 2005
In order to investigate the correlation between the circular velocity Vc and the central velocity dispersion of the spheroidal component sigma_c, we analyzed these quantities for a sample of 40 high surface brightness disc galaxies (hereafter HSB), 8 ...
A. Pizzella, Beijersbergen M., Carollo C. M., Corsini E. M., de Blok W. J. G., E. Dalla Bonta, E. M. Corsini, F. Bertola, Guthrie B. N. G., Jorgensen I., L. Coccato, M. Sarzi, Persic M., Sandage A.   +13 more
core   +4 more sources

Auto‐Routing Fluidic Printed Circuit Boards

Advanced Robotics Research, EarlyView.
This work introduces (STREAM) software tool for routing efficiently advanced macrofluidics, an open‐source software tool for automating the design of 3D‐printable fluidic circuit boards. STREAM streamlines tube routing and layout, enabling the rapid fabrication of fluidic networks for soft robotics, lab‐on‐a‐chip devices, microfluidics, and biohybrid ...
Savita V. Kendre, Lehong Wang, Haotian Liu, Markus P. Nemitz   +3 more
wiley   +1 more source

COVID-19 vaccine uptake in Zimbabwe and Sierra Leone: an application of Health Belief Model constructs

BMC Public Health
Introduction While African countries, in general, experienced a milder COVID-19 impact compared to Western nations, they faced challenges with vaccine uptake.
Simon Ssentongo, Alex Muhereza, Morie Mustapha, Ruth Gemi, Dennis Cherian, Rebecca Waugh, Benjamin Crookston, Cougar Hall, Mary Linehan, Hayden Borg, Joshua West   +10 more
doaj   +1 more source