Results 141 to 150 of about 2,082,471 (408)

Halide Perovskite Photocatalysts for Clean Fuel Production and Organic Synthesis: Opportunities and Challenges

open access: yesAdvanced Materials, EarlyView.
This review provides the state‐of‐the‐art overview of halide perovskite‐based photocatalysts for hydrogen production from water and halogen acid solutions, CO2 reduction into value‐added chemicals, and organic chemical transformations. Different types of halide perovskite photocatalysts and their relative efficiencies for hydrogen generation and CO2 ...
Siddharth Singh   +8 more
wiley   +1 more source

Immunoglobulin G4-related dacyroadenitis presenting as bilateral chorioretinal folds from severely enlarged lacrimal glands

open access: yesAmerican Journal of Ophthalmology Case Reports, 2018
Purpose: To describe a case of immunoglobulin G4 (IgG4)-related dacyroadenitis presenting as bilateral chorioretinal folds from eyeball compression by massively enlarged lacrimal glands.
Toru Kurokawa   +5 more
doaj   +1 more source

Norm upper-semicontinuity of functions supported on open abelian isotropy in étale groupoids (a corrigendum to "Reconstruction of groupoids and C*-rigidity of dynamical systems," Adv. Math 390 (2021), 107923) [PDF]

open access: yesarXiv
We consider \'etale Hausdorff groupoids in which the interior of the isotropy is abelian. We prove that the norms of the images under regular representations, of elements of the reduced groupoid $C^*$-algebra whose supports are contained in the interior of the isotropy vary upper semicontinuously. This corrects an error in [T.M. Carlsen, E.
arxiv  

Searches for New Quarks and Leptons Produced in Z-Boson Decay [PDF]

open access: yes, 1989
We have searched for events with new-particle topologies in 390 hadronic Z decays with the Mark II detector at the SLAC Linear Collider. We place 95%-confidence-level lower limits of 40.7 GeV/c^2 for the top-quark mass, 42.0 GeV/c^2 for the mass of a ...
Abrams, G. S.   +13 more
core  

Phonon Driven Ferroelectricity and Raman Active Modes in Hybrid Organic‐Inorganic Perovskites

open access: yesAdvanced Materials, EarlyView.
Ferroelectric domains, a hallmark of ferroelectricity, are studied using temperature‐dependent Raman spectroscopy to uncover characteristic phonons associated with ferroelectric phase transitions in different n‐value HOIPs. Higher n‐value HOIP demonstrate a reduced ferroelectric switching energy barrier, providing valuable insights for optimizing ...
Chuanzhao Li   +6 more
wiley   +1 more source

Comparison of fusion versus non-fusion surgery for retro-odontoid pseudotumor with atlanto-axial subluxation

open access: yesNorth American Spine Society Journal, 2021
Background: Due to the limited number of reports comparing posterior fusion with posterior decompression alone for retro-odontoid pseudotumor, there remains no consensus on treatment preference, especially in older patients. This study compared posterior
Masashi Uehara   +9 more
doaj  

Next‐Generation Image Sensors Based on Low‐Dimensional Semiconductor Materials

open access: yesAdvanced Materials, EarlyView.
Low‐dimensional semiconductor materials are promising candidates for photosensitive components in next‐generation image sensors. This review offers a thorough and timely examination of novel image sensors, covering their working principles, intriguing materials categorized into four main groups, and advanced imaging applications.
Yunxia Hu   +3 more
wiley   +1 more source

Role of infill parameters on the mechanical performance and weight reduction of PEI Ultem processed by FFF

open access: yesMaterials & Design, 2020
In comparison with conventional manufacturing technologies, Fused Filament Fabrication (FFF) offers countless benefits. It broadens the horizons of the design of structural components with high geometrical complexity, and lighter elements can be obtained
Albert Forés-Garriga   +3 more
doaj  

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