Results 141 to 150 of about 257,954 (306)

Balancing Crystallization Kinetics and Lattice Strain Enables Thermally Stable Slot‐Die‐Coated Narrow‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Unbalanced crystallization in mixed Sn‐Pb perovskites causes film defects and instability. CsPbI3 nanocrystals serve as nucleation seeds to regulate growth during slot‐die coating. Resulting solar cells retain 80% efficiency after nine thermal cycles. Operando GIWAXS confirms suppressed microstrain and lattice distortion, demonstrating that synergistic
Xiaojing Ci   +10 more
wiley   +1 more source

GRAZING ON PUBLIC LANDS IN THE 21ST CENTURY [PDF]

open access: yes
A panel of professionals from the ranching, environmental, agency, and university communities was assembled to examine trends relating to the future of grazing on federal lands.
Van Tassell, Larry W.   +2 more
core  

Phosphor‐Sensitized Ternary Organic Solar Cells Achieving 18.6% PCE via Ir(III)‐Mediated Triplet Energy Transfer and Non‐Radiative Recombination Suppression

open access: yesAdvanced Science, EarlyView.
A synergistic phosphor‐sensitization strategy (PSS) significantly enhances ternary OSCs performance. By integrating an Ir‐3 complex as a triplet energy mediator within a pyrazine‐based (N2) ternary blend (PM6:N2: L8‐BO) doped with 1 wt.% of Ir‐3 complex, and a PCE of 18.6% is achieved through efficient triplet‐triplet energy transfer (TTET), suppressed
Priyanka Yadav   +11 more
wiley   +1 more source

DEVELOPMENT AND FEDERAL GRAZING POLICY IMPACTS ON TWO COLORADO COUNTIES: A COMPARATIVE STUDY [PDF]

open access: yes
Ranchers have concern over how federal policies such as the Endangers Species Act, the Clean Water Act, and other laws and regulations will affect the status of their ranching operations.
Barlett, E. Tom, Rowe, Helen Ivy
core  

A comparison of the feeding and grazing behaviour of primiparous Holstein-Friesian and Jersey × Holstein-Friesian dairy cows [PDF]

open access: yes, 2012
Peer-reviewed articleFood intake and feeding behaviour of Holstein-Friesian (HF) and Jersey × Holstein- Friesian (J × HF) dairy cows (14 primiparous cows of each genotype) were measured during a 54-day confinement period [cows offered a complete diet ...
Kilpatrick, D. J.   +7 more
core  

Quantized Analog Inference Hardware Enabled by MoS2–Hf1‐xZrxO2 FeFET Synapses

open access: yesAdvanced Science, EarlyView.
A monolayer MoS2–HZO FeFET is presented as a pulse‐engineered neuromorphic device suitable for crossbar‐based analog computing. Programming‐pulse design enables tunable conductance trajectories for synaptic weight updates, while quantized machine‐learning approaches account for device variation, nonlinearity, and write noise, translating analog ...
Jeongmin Park   +8 more
wiley   +1 more source

Highly Linear Perovskite Synapses for Neuromorphic Computing

open access: yesAdvanced Science, EarlyView.
Voltage spikes applied to an Au/ACI‐phase perovskite/ITO memristor emulate the ionic signaling of a biological synapse, generating a tunable postsynaptic current. The vertically aligned perovskite film confines iodide‐vacancy migration, enabling highly linear, and symmetric conductance updates with 100 states and 5.5 aJ per event. Such synapses sustain
Zhongwen Sun   +7 more
wiley   +1 more source

Still Grazing Company : Media confirmation

open access: yes
Photocopy of three pages of a media briefing organised by Still grazing company of Mr Hugh Masekela1 online resource (3 ...

core  

Negative Gauge Factor Piezoresistance in Soft Strain and Pressure Sensors: Mechanisms, Materials, and Emerging Applications

open access: yesAdvanced Science, EarlyView.
Negative‐gauge‐factor materials reverse the usual rule of piezoresistive sensing: their resistance falls, rather than rises, under deformation. This review organizes such behavior into four mechanistic classes spanning intrinsic semiconductors, composites, conducting polymers, and engineered architectures.
Su‐Hyeong Lee   +2 more
wiley   +1 more source

Molecular Engineering of Multi‐Site Small‐Molecule Chelation for Highly Efficient and Stable n‐i‐p Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Li+ ion migration in Li‐TFSI‐doped Spiro‐OMeTAD impairs efficiency and device stability. Rather than replacing Li+, a multi‐site chelator is designed and introduced into Spiro‐OMeTAD to immobilize Li+ ions with high affinity. The synergistic effects of suppressing ion migration, inducing ordered molecular packing, boosting p‐doping efficiency, and ...
Xinbao Lin   +12 more
wiley   +1 more source

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