Results 111 to 120 of about 197,605 (292)

Analysis of the Systematic Errors Found in the Kipp & Zonen Large-Aperture Scintillometer [PDF]

open access: yes
Studies have shown a systematic error in the Kipp & Zonen large-aperture scintillometer (K&ZLAS) measurements of the sensible heat flux, H. We improved on these studies and compared four K&ZLASs with a Wageningen large-aperture scintillometer at the ...
Hartogensis, O.K., Kesteren, A.J.H., van
core   +2 more sources

Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates

open access: yesAdvanced Functional Materials, EarlyView.
Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi   +3 more
wiley   +1 more source

Dispensing Volumetric Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon   +5 more
wiley   +1 more source

Screening for refractive error among primary school children in Bayelsa state, Nigeria

open access: yesThe Pan African Medical Journal, 2013
INTRODUCTION: Vision screening study in primary school children has not been done in Bayelsa State. This study aims to screen for refractive error among primary school children in Bayelsa State and use the data to plan for school Eye Health Program ...
Ibeinmo Opubiri, Chinyere Pedro-Egbe
doaj   +1 more source

An Analysis of Some Refractive Error Trends in US Air Force Pilots and Navigators [PDF]

open access: yes
Refractive error trends with age in US Air Force pilots and ...
Dunsky, I. L., Levene, J. R.
core   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

open access: yesAdvanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo   +11 more
wiley   +1 more source

Situation analysis on the integration of refractive error services provided by optometrists into the national health services in Kenya

open access: yesBMC Public Health
Introduction Even though the burden of uncorrected refractive error could potentially be addressed through innovative and cost-effective approaches, integration of the services into the National Health Services (NHS) is desirable.
Shadrack Muma   +2 more
doaj   +1 more source

Perbandingan Besaran Sferikal Ekuivalen Berdasarkan Metode Pengukuran Visus Subjektif Dan Objektif Penderita Ametropia Pada Mahasiswa Fakultas Kedokteran Universitas Sam Ratulangi [PDF]

open access: yes, 2014
: Ametropia or refractive error of the eye is the case almost every time we encounter in our environment and increasing steadily each year. One of the factors why refractive error often are not fully corrected due to the difference in the value of ...
Lintong, F. (Fransisca)   +2 more
core  

ERRORS OF REFRACTION. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1895
These eighteen propositions will assist the beginner to more readily understand the many pages treating of the same subjects in all our text-books. With a second lecture on the lenses which correct the errors of refraction, and a third lecture on the frames which hold the lenses which correct the errors of refraction, we will have completed the "House
openaire   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy