Results 51 to 60 of about 119,351 (264)

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Karl Ristikivi Vahemere-ruum / Karl Ristikivi’s Mediterranean space

open access: yesMethis: Studia Humaniora Estonica, 2014
Karl Ristikivi (1912–1977) was a well-travelled Estonian writer whose imaginative spatial images are based equally on landscapes he actually experienced and on journeys he perhaps traced on a map with his finger and followed in his imagination.
Brita Melts
doaj   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee   +6 more
wiley   +1 more source

Short-term natural history of macular neovascularization in nonexudative age-related macular degeneration using multimodal imaging

open access: yesScientific Reports
The short-term conversion rate of a non-exudative macular neovascularization (ne-MNV) to an exudative stage in age-related macular degeneration (AMD) was evaluated in a single-center, retrospective case control study and associated imaging ...
Anna-Maria Haas   +6 more
doaj   +1 more source

Thermally Robust Spin–Orbit Torque Switching in Low‐Resistivity Mo‐Alloyed β‐W Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
Mo‐alloyed β‐W heterostructures exhibit enhanced spin‐orbit torque efficiency, reduced resistivity and switching current density, and reliable operation from −50 to +150°C. The optimized W87.3Mo12.7 device achieves high spin Hall conductivity with thermal robustness, highlighting its potential for energy‐efficient magnetic memory and automotive ...
Han Seok Ko   +7 more
wiley   +1 more source

Daily vertical migrations of aquatic organisms and water transparency as indicators of the potential exposure of freshwater lakes to light pollution

open access: yesActa Biologica Sibirica
Light pollution, which disrupts the vital functions of organisms, including aquatic organisms, has become widespread in recent years. One of the main biological features of aquatic organisms is the presence of daily vertical migrations (DVM). However, as
Yana K. Ermolaeva   +13 more
doaj   +1 more source

High‐Performance n‐Type Organic Thermoelectrics Enabled by Control Over Microstructure, Orientation and Contact Plane in Naphthalenediimide‐Bithiazole‐Copolymer Films

open access: yesAdvanced Functional Materials, EarlyView.
Effective control over the crystalline contact plane and microstructure of a naphthalenediimide‐bithiazole copolymer enables high‐performance n‐type thermoelectrics. While rubbing alignment induces a detrimental edge‐on orientation, subsequent solvent vapor‐induced re‐orientation facilitates a favorable mixed face‐on/edge‐on morphology.
Suhao Wang   +13 more
wiley   +1 more source

Förderung unternehmerischen Denkens und Handelns in der universitären Übungsfirma

open access: yesZeitschrift für Hochschulentwicklung, 2015
Entrepreneurship Education ist ein zentrales Anliegen im polyvalenten Masterstudium Wirtschaftspädagogik an der Universität Graz. Für die Kompetenzentwicklung der Studierenden im Sinnes eines breiten Verständnisses von Entrepreneurship Education kommt ...
Elisabeth Riebenbauer, Michaela Stock
doaj   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

open access: yesAdvanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Rhythm generation and rhythm perception in insects: The evolution of synchronous choruses

open access: yesFrontiers in Neuroscience, 2016
Insect sounds dominate the acoustic environment in many natural habitats such as rainforests or meadows on a warm summer day. Among acoustic insects, usually males are the calling sex; they generate signals that transmit information about the species ...
Manfred eHartbauer, Heiner eRömer
doaj   +1 more source

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