Results 71 to 80 of about 2,198,954 (282)

Multiple Wavelength Free-Space Laser Communications [PDF]

, 2003
Free-space optical communications systems in the atmosphere, based on intensity modulation and direct detection, are heavily affected by fading caused by turbulence cells of varying scale and motion.
Perlot, Nicolas, Hennes Henniger, Giggenbach, Dirk, Nicolas Perlot, Henniger, Hennes, Florian David, Robert Purvinskis, David, Florian, Dirk Giggenbach, Purvinskis, Robert   +9 more
core   +1 more source

Strategy of Triple‐Gradient in Binary Pixels for Flexible Pressure Sensing with High Sensitivity and Wide‐Range Linearity

Advanced Science, EarlyView.
A flexible pressure sensor with triple‐gradient design of conductivity, modulus, and dimension in binary micro‐dome pixels is proposed. Based on precisely‐designed CNT/PDMS matrix, the device exhibits a linear sensitivity of 974.1 kPa−1 across range up to 1.8 MPa (R2 > 0.99), offering an effective strategy for potential applications in healthcare ...
Yifan Liu, Xiao Xu, Fengming Hu, Yuanzhe Liang, Zidong Yin, Biao Qi, Ruolin Liu, Ziyi Dai, Jianyi Luo, Bingpu Zhou   +9 more
wiley   +1 more source

Systematic Multi‐Level Analyses Decode the Arthritis‐Neurodegeneration Axis With In Vivo Validation

Advanced Science, EarlyView.
Arthritis and neurodegeneration are usually studied as separate disorders, but this study connects them through population evidence, genetic inference, transcriptomic mapping, and mouse models. It highlights RNF40 as a context‐dependent joint‐brain candidate, induced in inflammatory joints yet functionally linked to dopamine‐neuron vulnerability ...
Jinwen Wang, Wenhui Xie, Lei Yang, Zhengrong Wang, Yi Huang, Peng Huang, Yuan Liu, Jun Hu   +7 more
wiley   +1 more source

Prevention and correction of residual refractive errors after cataract surgery

Journal of Clinical Ophthalmology and Research, 2017
Cataract surgery today has become more of a refractive surgery with high patient expectations and demand for independence from glasses. With advances in biometry, precise intraocular lens (IOL) power calculation is the most important step in achieving ...
Jeevan S Ladi
doaj   +1 more source

An Error Protection Protocol for user-transparent bridging of Fast Ethernet data transmission over the optical fading channel in an Aeronautical environment [PDF]

, 2008
This paper presents an extensive insight into error protection techniques for free space optical links, focusing in particular in aeronautic stratospherically applications.
Serrano-Solsona, Clara, Henniger, Hennes, Epple, Bernhard   +2 more
core  

Ion‐Gating Reservoir Computing for Preprocessing‐Free Speech Recognition from Throat Vibrations

Advanced Electronic Materials, EarlyView.
This work presents a throat‐mounted mechanoelectric sensor integrated with an ion‐gel/graphene reservoir device for on‐device speech recognition. The system converts raw biomechanical vibrations into rich nonlinear current dynamics, enabling efficient classification through a simple linear readout. The approach highlights a compact and tunable physical‐
Daiki Nishioka, Akito Tateyama, Hina Kitano, Takashi Nakanishi, Kazuya Terabe, Takashi Tsuchiya   +5 more
wiley   +1 more source

Refractive Outcome after Phacoemulsification Using Optical Biometry versus Immersion Ultrasound Biometry [PDF]

The Egyptian Journal of Hospital Medicine, 2019
Purpose: To compare refractive outcome after phacoemulsification using optical biometry versus immersion ultrasound biometry (US) .Patients and methods: A prospective, comparative, non-randomized interventional study included 100 eyes divided into 2 groups: Group (A): (Immersion US biometry) included 50 eyes.
Fatma A. Atwa, Hayam S. Kamel, Rehab M. Kamel, Ahmed A. Abd El Fatah   +3 more
openaire   +1 more source

Comparison of Ultrasound Biometry with Optical Biometry for Measurement of Axial Length and Calculation of Intraocular Lens Power in Patients Undergoing Routine Cataract Surgery [PDF]

Objective: To compare the axial length and intraocular lens power calculated by using ultrasound biometry and optical biometry in patients with cataract Methodology: It was prospective randomized control trial carried out at eye department of Pakistan ...
Rahim, Sumaira, Armoghan, Nida, Khan, M. Arif, Imran, Khadija, Nazir, Fahmina, Nida Fatima   +5 more
core   +1 more source

Smart Flexible Tactile Sensors: Recent Progress in Device Designs, Intelligent Algorithms, and Multidisciplinary Applications

Advanced Intelligent Discovery, EarlyView.
Flexible tactile sensors have considerable potential for broad application in healthcare monitoring, human–machine interfaces, and bioinspired robotics. This review explores recent progress in device design, performance optimization, and intelligent applications. It highlights how AI algorithms enhance environmental adaptability and perception accuracy
Siyuan Wang, Ming Dong, Rongrong Bao, Caofeng Pan   +3 more
wiley   +1 more source

Optical biometry-based axial length alterations after intravitreal dexamethasone implant

, 2019
Purpose: To investigate changes in axial length after intravitreal dexamethasone implantation in patients with macular edema. Methods: We performed a prospective comparative study of 46 patients with unilateral macular edema, due to diabetic retinopathy,
Ayca Kupelı (6402644), Vuslat Gurlu (6402647), Sadık Altan Ozal (4702459), Ece Ozal (4702456)   +3 more
core   +3 more sources