Results 71 to 80 of about 17,830,648 (250)

Intracrystalline Void‐Mediated Toughening of Brittle Crystals in Quail Eggshells

Advanced Functional Materials, EarlyView.
In quail eggshells, the high density and disordered arrangement of intracrystalline voids inhibit lattice cleavage, suppress long‐range crack propagation, and promote deformation twinning and quasi‐plasticity, serving as an essential toughening motif. We show that these voids remain within a narrow subcritical size range and therefore predominantly do ...
Jingxiao Zhong, Qihang Wang, Andre E. Vellwock, Sinuhe Perea Puente, Tingting Zhu, Jia Hui Lim, Kadda Medjoubi, Sebastian Hoerl, Erika Griesshaber, Wolfgang W. Schmahl, Yannicke Dauphin, Emeline Raguin, Peter Werner, Francesco Stellacci, Michael V. Swain, Peter Fratzl, Shahrouz Amini   +16 more
wiley   +1 more source

Neuromorphic Devices for Extreme Environments: State‐Variable Reliability and Stabilization Strategies

Advanced Functional Materials, EarlyView.
Neuromorphic devices for extreme environments are interpreted through the physical states that store and process information. Radiation, temperature extremes, and vacuum can perturb vacancies, filaments, trapped charges, polarization, interfaces, and readout signals.
Taehyun Park, Geon Park, Junhyung Cho, Jaechan Song, Wangmyung Choi, Jaehyun Hur, Nicola Gasparini, Hocheon Yoo   +7 more
wiley   +1 more source

Tear film parameters in females with thyroid eye disease and diabetes: an observational study

Journal of the Pakistan Medical Association
Objective: To assess different tear film parameters in female patients with thyroid eye disease and diabetes using a single portable device. Method: The observational study was conducted at the College of Applied Medical Sciences, King Saud University,
Mana Alafri Alanazi, Amaal Almutairi, Alanoud Abdulaziz Al-Massaad, Mashaaer Abdulwahhab Baashen, Meznah Saud Almutairi, Abdulaziz Alhssan, Gamal Abdel-Rahman El-Hiti   +6 more
doaj   +1 more source

Evaluation of Tear Film Osmolarity in Cases with Chronic Blepharitis

, 2015
Objectives: To investigate the tear film osmolarity in eyes with chronic blepharitis. Materials and Methods: Patients with symptomatic chronic blepharitis were included in the study. After ophthalmologic examination, tear osmolarity was measured.
Şule Ziylan, Ferda Çiftçi, YENEREL, NURSEL MELDA, Ebru Görgün, ZİYLAN, ŞULE, Canan Aslı Utine, KÜÇÜMEN, RACİHA BERİL, Raciha Beril Küçümen, Nursal Melda Yenerel, YILDIRIM, CANAN ASLI, ÇİFTÇİ, FERDA, GÖRGÜN, EBRU   +11 more
core   +1 more source

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

Advanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen, Lei Wu, Jingran Liu, Damiano Pasini   +3 more
wiley   +1 more source

Operator learning for models of tear film breakup

Tear film (TF) breakup is a key driver of understanding dry eye disease, and estimating TF thickness and osmolarity from fluorescence (FL) imaging typically requires solving computationally expensive inverse problems.
Arnab Roy, Qinying Chen, Tobin A Driscoll   +2 more
core   +1 more source

A Comprehensive Assessment of Tear-Film-Oriented Diagnosis (TFOD) in a Dacryoadenectomy Dry Eye Model

, 2023
Tear film instability is a major cause of dry eye disease. In order to treat patients with short tear film breakup time (TBUT)-type dry eye, the development of tear film stabilizing agents is essential. However, the lack of an appropriate animal model of
Masatoshi Hirayama, Yoko Ogawa, Kazuno Negishi, Shigeto Shimmura, Naofumi Takai, Masatoshi Yamamoto, Taeko Nagata, Kazunari Higa, Dogru Murat, Emi Inagaki, Yasunori Sato, Yuichiro Ochiai, Saki Sakakura, Hiroshi Toshida   +13 more
core   +1 more source

In Situ Interfacial Assembly of Dynamic Semi‐Interpenetrating Biopolymer Networks for Robust and Mechanically Adaptive Droplet Interfaces

Advanced Functional Materials, EarlyView.
A dynamic interfacial semi‐interpenetrating polymer network is constructed by sequential assembly of β‐sheet‐rich SF and CS‐RL. The SF framework provides mechanical strength, while dynamically associated CS‐RL enables local rearrangement, allowing droplets to rapidly reconfigure without loss of interfacial integrity.
Yaping Zhang, Yujie Liu, Yikai Xu, Xunda Feng, Ling Zhang, Hongbo Zeng, Hao Liu, Xiaohui Mao   +7 more
wiley   +1 more source

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

Advanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis, Vasiliki Safranoglou, Luis Gulfo, Michael R. Wisnom, Martin Fagerström, Malin Åkermo, Soraia Pimenta, Dan Zenkert, Leif E. Asp   +8 more
wiley   +1 more source

Clinical observation of tear film breakup time with a novel smartphone-attachable technology. [PDF]

BMC Ophthalmol, 2023
Zhang X, Shen J, Kang Z, Chen A, Cao Q, Xue C.   +5 more
europepmc   +1 more source