Results 81 to 90 of about 238,064 (305)

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Associations between refraction and ocular biometry in Chinese preschoolers aged 3–6 years: a cross-sectional study in Shunyi, Beijing

BMJ Open
Objective To estimate the associations between refraction and ocular biometry of preschool children (3–6 years old) in Shunyi District, Beijing.Design Cross-sectional study.Setting This study was conducted in 11 kindergartens in Shunyi District, Beijing ...
Rui Wang, Aimin Jiang, Jing Yuan, Qing Xu, Liting Zhu, Zhanfeng Li   +5 more
doaj   +1 more source

One‐Step Curcumin‐Mediated Multiphoton Lithography for Bioactive 3D Scaffolds

Advanced Functional Materials, EarlyView.
Curcumin‐mediated multiphoton lithography enables one‐step fabrication of highly architected complex gelatin methacryloyl scaffolds by exploiting curcumin as a multifunctional bioactive photoinitiator. The resulting 3D structures support mesenchymal stem cell adhesion, proliferation, and migration, while exhibiting dual antibacterial activity through ...
Myrto Charitaki, Michalis Stavrou, Chrysanthi Pinelopi Apostolidou, Elmina Kabouraki, David Gray, Anna Mitraki, Anthi Ranella, Maria Farsari   +7 more
wiley   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

Quantitative assessment of relative peripheral refraction in children with different refractive statuses and its associations with ocular biometry

Frontiers in Medicine
BackgroundThis study aimed to evaluate the distribution of relative peripheral refraction (RPR) and its relationship with ocular biometry in Chinese children of different refractive statuses.MethodsThis study included 309 participants aged 4 to 14 years ...
Chaoying Ye, Chaoying Ye, Chaoying Ye, Xingxue Zhu, Xingxue Zhu, Xingxue Zhu, Yangfan Xu, Yangfan Xu, Yangfan Xu, Yuliang Wang, Yuliang Wang, Yuliang Wang, Yujia Liu, Yujia Liu, Yujia Liu, Jianmin Shang, Jianmin Shang, Jianmin Shang, Xiaomei Qu, Xiaomei Qu, Xiaomei Qu   +20 more
doaj   +1 more source

Broadband Silicon‐On‐Glass Reflective Dielectric Metasurface for THz Beam Steering in 6G Wireless Networks

Advanced Functional Materials, EarlyView.
A CMOS‐compatible, all‐dielectric Silicon‐on‐Glass reflective metasurface enables low–loss terahertz wavefront control for future 6G wireless communication. Mie‐resonant silicon pillars provide full phase coverage near 500 GHz, achieving experimentally validated single‐, dual‐, and five‐beam steering with sub‐1.5° angular error and less than 3 dB ...
Rithwik Premanand, Yi Ji Tan, Thomas CaiWei Tan, Prakash Pitchappa, Hemanth Kumar Cheemalamarri, A. S. Madhukumar, Ranjan Singh   +6 more
wiley   +1 more source

Prevalence and Pattern of Ocular Morbidities among Pediatric Patients Attending Tertiary Eye Hospital in Nepal: A Descriptive Cross-Sectional Study

Journal of Nepal Medical Association
Introduction: A hospital based cross-sectional study was conducted to determine the prevalence and pattern of ocular morbidities among pediatric patients attending a tertiary eye hospital in Nepal.
Raju Kaiti, Monika Mandal, Ranjila Shyangbo, Aayusha Regmi, Chandra Maya Gurung, Santosh Paudel   +5 more
doaj   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

Advanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang, Chao Hsuan (Joseph) Sung, Haitao Yu, Ezra Sarmiento, Katarina Kotanchek, Ryan Christopher Lee, Michelle Chan, David Kisailus   +7 more
wiley   +1 more source

Ocular Morbidity among Orphanages

Journal of Nepal Medical Association, 2010
INTRODUCTION: The study assesses the spectrum of ocular morbidity and predictors of morbidity in children living in orphanages in the Kathmandu Valley.
M K Shrestha, L Wolf, U Shrestha, K Gurung, B S Chansi, P Dhungana, R Gurung, S Ruit   +7 more
doaj   +1 more source

Means Tables and Post-hoc comparisons Bum1, Bum2 vs SAL for Ocular Refraction and Vitreous Chamber Depth

, 2013
Means Tables and Post-hoc comparisons Bum1, Bum2 vs SAL for Ocular Refraction and Vitreous Chamber ...
Sheila G. Crewther (73517), Melanie J. Murphy (73518), David P. Crewther (73519)   +2 more
core   +1 more source