Results 121 to 130 of about 369,065 (358)

Reemergence of Plasmodium vivax Malaria in the Republic of Korea [PDF]

open access: green, 1998
Brian H. Feighner   +4 more
openalex   +3 more sources

The Relationship Between Comorbidities and Microbiologic Findings in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease

open access: yesInternational Journal of COPD, 2022
Hyewon Seo,1 Yun Su Sim,2 Kyung Hoon Min,3 Jae Ha Lee,4 Byung-Keun Kim,5 Yeon Mok Oh,6 Seung Won Ra,7 Tae-Hyung Kim,8 Yong Il Hwang,9 Jeong-Woong Park10 1Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic ...
Seo H   +9 more
doaj  

Electro‐Active Metasurfaces Controlling Exceptional Topological Phase Through Low‐Voltage Operation on Conductive Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This research investigates an electro‐active chiral optical response (EACOR)‐driven dual‐channel metasurfaces with fast electrical switching rates of 52 ms, and a low operating voltage of 0.5 V. The combination of polyaniline (PANI) thin film and the exceptional topological (ET) phase of chiral gold (Au) meta‐atoms modulate holographic images through ...
Jaekyung Kim   +4 more
wiley   +1 more source

Superionic Disulfonic Acid Polymers

open access: yesAdvanced Functional Materials, EarlyView.
A strategy is presented to enhance the mechanical and ion transport properties of acid‐functionalized polymers through controlled polymerizations of precisely designed disulfonic acid monomers with well‐defined functional group arrangements. This approach allows for fine control over molecular interactions, and unexpected hydrophobic characteristics ...
Xuelang Gao   +5 more
wiley   +1 more source

Ultrafast Room‐Temperature Nanofabrication via Ozone‐Based Gas‐Phase Metal‐Assisted Chemical Etching for High‐Performance Silicon Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
Ozone‐based gas‐phase metal‐assisted chemical etching enables unprecedented room‐temperature fabrication of high‐quality silicon nanowires. The superior oxidation potential of O3 drives rapid vertical etching (1 µm min−1) while maintaining exceptional structural integrity. The pristine nanowire surfaces enable high‐performance core‐shell photodetectors
Hyein Cho   +11 more
wiley   +1 more source

Ternary Transistors With Reconfigurable Polarities

open access: yesAdvanced Functional Materials, EarlyView.
Polarity‐reconfigurable ternary transistors are demonstrated using black phosphorus homojunction with asymmetric contacts and split‐gate structures. Suppression of majority carrier injection, while Fowler–Nordheim tunneling of low‐density minority carriers persists, enables a well‐defined intermediate state with improved on/off ratios.
Dongju Yeom   +11 more
wiley   +1 more source

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