Results 191 to 200 of about 5,684,589 (342)

Pick‐and‐Place Grippers with Tunable Adhesion from Capped Soft Hollow Pillar Structure

Advanced Materials Technologies, EarlyView.
Mushroom‐shaped soft hollow pillars (SHPs) with a mushroom cap, or capped SHPs (C‐SHPs) are introduced for improved tunable adhesion under pneumatic actuation. The mushroom cap optimizes stress distribution and alters crack initiation on the contact interface, leading to significantly improved adhesion strength and tunability.
Yanbing Tang, Farshad Goodarzi, Guangchao Wan, Wanliang Shan   +3 more
wiley   +1 more source

Missed Appointments and Associated Factors Among Children Accessing Anti-Retroviral Therapy During the COVID-19 Pandemic in South Western Uganda. [PDF]

HIV AIDS (Auckl)
Nduhukire T, Adebayo IA, Luwaga R, Mandela I, Napyo A, Ainamani H, Musiime V.   +6 more
europepmc   +1 more source

Prevalence, Rates and Correlates of Intimate Partner Violence Among South African Women During Pregnancy and the Postpartum Period

Maternal and Child Health Journal, 2015
Allison K. Groves, D. Moodley, Luz McNaughton-Reyes, Sandra L Martin, V. Foshee, S. Maman   +5 more
semanticscholar   +1 more source

A Unified Enhanced Quasi‐Electrostatic 3D Charge Model for Accurate Prediction and Design Optimization of Contact‒Separation Triboelectric Nanogenerators

Advanced Materials Technologies, EarlyView.
New theoretical model for vertical contact and separation mode triboelectric nanogenerator is proposed. Detailed derivation process and results are discussed. Numerical solutions and parametric studies are presented. Calculated results are validated by experimental outcomes.
Seokjin Kim, Jang‒Woo Han, Jihoon Chung   +2 more
wiley   +1 more source

Potential for Bias in Prevalence Estimates when Not Accounting for Test Sensitivity and Specificity: A Systematic Review of COVID-19 Seroprevalence Studies. [PDF]

Int J Public Health
Haile SR, Kronthaler D.
europepmc   +1 more source

Fabrication Optimization of van der Waals Metasurfaces: Inverse Patterning Boosts Resonance Quality Factor

Advanced Optical Materials, EarlyView.
An optimized fabrication approach for the nanostructuring of optical metasurfaces from van der Waals materials like hexagonal boron nitride is presented. The resonator geometries show enhanced geometric homogeneity, resulting in a significant increase in quality factors of symmetry‐protected bound states in the continuum resonances.
Jonas Biechteler, Connor Heimig, Thomas Weber, Dmytro Gryb, Luca Sortino, Stefan A. Maier, Leonardo de S. Menezes, Andreas Tittl   +7 more
wiley   +1 more source

Carbon‐Coated Moth‐Eye Structure: An Ultrabroadband THz‐DUV Near‐Perfect Absorber

Advanced Optical Materials, EarlyView.
A silicon moth‐eye surface coated with pyrolytic carbon achieves >98% absorption from 1 to 1200 THz by combining gradient‐index matching with PyC's broadband conductivity, forming an ultra‐broadband absorber from THz to deep UV. Experimental results and simulations agreed well.
Yuki Hakamada, Maria Cojocari, Mizuho Matoba, Shotaro Kawano, Haruyuki Sakurai, Kuniaki Konishi, Daniil Pashnev, Surya Revanth Ayyagari, Vytautas Janonis, Andrzej Urbanowicz, Saulius Tumėnas, Justinas Jorudas, Irmantas Kašalynas, Janna Pennanen, Adigun Deborah Amos, Aleksandr Saushin, Georgy Fedorov, Yuri Svirko, Polina Kuzhir   +18 more
wiley   +1 more source

Climate change and its impact on wheat distribution in semi-arid ecosystems: A case study from the Sultanate of Oman. [PDF]

PLoS One
Al-Kindi KM, Al-Lawati AH.
europepmc   +1 more source

Development of automated welding process for field fabrication of thick walled pressure vessels. Fourth quarter technical progress report for period ending September 28, 1980

, 1980

openalex   +2 more sources

New Archaeological Research in the Northwest Quarter of Jerash and Its Implications for the Urban Development of Roman Gerasa

American Journal of Archaeology, 2015
A. Lichtenberger, R. Raja
semanticscholar   +1 more source