Results 111 to 120 of about 218,219 (240)

Laser Active Optical Systems (LAOSs) for Material Processing

open access: yesMicromachines
The output energy of Laser Active Optical Systems (LAOSs), in which image brightness is amplified within the laser-active medium, is always higher than the input energy. This contrasts with conventional optical systems (OSs).
Vladimir Chvykov
doaj   +1 more source

Semiconductor Processing with Excimer Lasers: An Overview

open access: yes, 1983
The present level of development of excimer lasers, as it relates to semiconductor processing, and the advantages of these lasers for such processing, are reviewed.
R. T. Young
core   +1 more source

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies

open access: yesSmart Molecules, EarlyView.
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Litao Zhou   +3 more
wiley   +1 more source

Molecular‐Scale Geometric Control of Organosiloxane Cage Frameworks Via Rigid Organic Bridges

open access: yesSmall Methods, EarlyView.
Rigid phenylene bridges with predefined Si–Ph–Si angles enable molecular‐level control of cage‐type organosiloxane frameworks. Hydrolysis and condensation of meta‐ and para‐bis(triethoxysilyl)benzene in the presence of tetramethylammonium hydroxide yield a mixture of cage trimers and tetramers, and hexamers, respectively, providing a new insight into ...
Taiki Hayashi   +5 more
wiley   +1 more source

Economic Burden and Treatment Patterns Among Patients Diagnosed With Vitiligo in Japan: An Observational Retrospective Cohort Study

open access: yesThe Journal of Dermatology, EarlyView.
ABSTRACT Vitiligo, a common and chronic depigmentation disorder, significantly impacts patients' quality of life and exerts a substantial economic burden. The deleterious impact of vitiligo can be exacerbated by comorbid conditions, including psychiatric and autoimmune conditions.
Naoki Oiso   +9 more
wiley   +1 more source

Glass from Teniky (Madagascar): Geochemical Evidence for Multiple Production Systems and Long‐Distance Exchange in the Mediaeval Indian Ocean

open access: yesArchaeometry, EarlyView.
ABSTRACT The inland rock‐cut site of Teniky, located in the Isalo massif of southern Madagascar, represents an exceptional archaeological context recently dated to the 11th–12th centuries ad, corresponding to the early phases of settlement on the island.
Jean Rodier   +2 more
wiley   +1 more source

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

Afghanite: A New Silicate‐Matrix Reference Material for In Situ Halogen and Sulfur Microanalysis

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points A new silicate matrix reference material for in situ chlorine and sulfur determination. Homogeneous across all measured elements. No matrix effects for Cl when calibrating silicate matrices, in contrast to scapolite, which causes systematic Cl overestimation of up to 13%.
Sebastian Stumpf   +7 more
wiley   +1 more source

Swiss Practice Recommendations for Chronic Prurigo Including Prurigo Nodularis

open access: yesInternational Journal of Dermatology, EarlyView.
Chronic prurigo, including prurigo nodularis, is a chronic, often treatment‐refractory condition characterized by persistent pruritus and chronic scratch lesions. Advances in the understanding of its underlying pathophysiology have enabled the development of novel targeted therapies; however, management remains challenging due to the expanding range of
Simon M. Mueller   +11 more
wiley   +1 more source

Semiconductor processing with excimer lasers [PDF]

open access: yes, 1983
The advantages of pulsed excimer lasers for semiconductor processing are reviewed. Extensive comparisons of the quality of annealing of ion-implanted Si obtained with XeCl and ruby lasers have been made.
Young, R.T.   +5 more
core  

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