Results 161 to 170 of about 23,730,815 (255)

Reversible Data Hiding Scheme Based on Neighboring Pixel Differences

open access: yes, 2013
[[abstract]]In this paper, we propose a reversible data hiding algorithm for grayscale images. Specifically, our algorithm is based on the histogram modification technique.
蔡淵裕;Tsai, Yuan-Yu;蔡篤校;劉兆樑;Liu, Chao-Liang
core  

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

Information hiding in speech signals for secure communication

open access: yes, 2015
While traditional digital encryption methods are useful, there are many other options for hiding your information. This book provides a number of methods to hide secret speech information using a variety of digital speech coding standards.
Wu, Zhijun,1965 May-, Wu, Zhijun
core  

Above Room Temperature Ferroelectricity in Epitaxially Strained KTaO3

open access: yesAdvanced Materials, EarlyView.
Through precise epitaxial engineering, the cubic and paraelectric KTaO3${\rm KTaO}_3$ is transformed into a robust ferroelectric. By leveraging lattice‐mismatched substrates to apply controlled epitaxial strain, a stable ferroelectric ground‐state is achieved with a transition temperature as high as 475 K, establishing KTaO3${\rm KTaO}_3$ as a highly ...
Tobias Schwaigert   +11 more
wiley   +1 more source

Reversible Data Hiding Based on Block Truncation Coding Using Difference Expansion

open access: yes, 2009
[[abstract]]In this thesis, we propose a reversible data hiding scheme based on Block Truncation Coding (BTC). In our proposed methods, we apply Difference Expansion Method to hiding secret data in reconstruction pixels of BTC codes.
Yi-Jie Liu
core  

Data‐Driven Materials Science for Energy‐Sustainable Applications

open access: yesAdvanced Materials, EarlyView.
Data‐driven approaches powered by artificial intelligence are transforming materials discovery for energy sustainability. This review examines how auto‐generated high‐quality materials databases and domain‐specific language models accelerate research in photovoltaics, thermoelectrics, batteries and magnetic materials. Applications involve extraction of
Jacqueline M. Cole
wiley   +1 more source

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