Results 71 to 80 of about 112,510 (283)

Mechanical stability in flexible perovskite solar cells: Interface engineering and device design

open access: yesFlexMat, EarlyView.
Statistics of the improvement methods for f‐PSCs. Abstract Flexible perovskite solar cells (f‐PSCs) demonstrate significant potential for application in next‐generation wearable electronic devices and photovoltaic building integration due to their high power conversion efficiency and excellent power‐to‐weight ratio. However, the inherent brittleness of
Hong‐Yi Hou   +3 more
wiley   +1 more source

Mathematical model of a special conveyor with suspended belt and distributed drive.

open access: yesBulletin of Bryansk state technical university, 2014
Mathematical model of a conveyor with suspended belt and distributed drive is developed. The modeling results presented in the article.
Evgeniy Tolkachev, Aleksandr Lagerev
openaire   +3 more sources

GPS-guided mobile robot platform featuring modular design elements for agricultural applications : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Engineering in Mechatronics at Massey University Turitea Campus, Palmerston North, New Zealand [PDF]

open access: yes, 2016
The agricultural industry has not seen significant innovation in development of low-cost automated farming solutions, with current systems costing several thousands of dollars to implement.
Corpe, Samuel John Oldfield
core  

Tracing the evolution of root coverage: Clinical milestones leading to a minimally invasive era

open access: yesJournal of Periodontology, EarlyView.
Abstract Over the past several decades, periodontal plastic surgery has undergone a remarkable transformation, particularly in the field of root coverage procedures. This review traces the historical evolution of surgical techniques, from the early use of pedicle flaps and free gingival grafts (FGGs) to the development of bilaminar approaches ...
Lorenzo Tavelli   +6 more
wiley   +1 more source

Frequency Analysis of a Cable with Variable Tension and Variable Rotational Speed [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2011
In this paper coupled nonlinear equations of motion of a suspended cable with time dependent tension and velocity are derived by using Hamilton’s principal.
Moharam Habibnejad, AliAkbar Alipour
doaj  

Recent Advances in Conductive Rubber Composites: Progress, Challenges, and Emerging Opportunities

open access: yesMacromolecular Rapid Communications, EarlyView.
This study reviews the recent advances in conductive rubber composites, focusing on key aspects such as material selection, conductive mechanisms, interfacial engineering, processing methods, vulcanization strategies, and practical applications. It also discusses current challenges and highlights emerging directions that are shaping the development of ...
Lu Yin   +3 more
wiley   +1 more source

Evaluating land–sea linkages using land cover change and coral reef monitoring data: A case study from northeastern Puerto Rico

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Land cover change that leads to increased nutrient and sediment runoff is an important driver of change in coral reef ecosystems. In this study, we combined satellite remote sensing and field monitoring to assess concomitant changes in watershed land cover and coral cover in northeastern Puerto Rico in 2000–2015.
Pirta Palola   +5 more
wiley   +1 more source

Apollo mission experience [PDF]

open access: yes, 1972
Dosimetric implications for manned space flight are evaluated by analyzing the radiation field behind the heavy shielding of a manned space vehicle on a near-earth orbital mission and how it compares with actual exposure levels recorded on Apollo ...
Schaefer, H. J.
core   +1 more source

The Macroeconomic Drivers of Carbon Emissions in East Africa: Capital‐Driven Versus Trade‐Driven Globalization

open access: yesSustainable Development, EarlyView.
ABSTRACT East Africa has recorded strong economic growth over the past three decades alongside a steady rise in carbon emissions, raising concerns about whether the region can sustain growth without worsening environmental pressures. This study incorporates key macroeconomic drivers of carbon emissions using panel data for 9 countries from 1990 to 2023,
Princewill Okwoche   +2 more
wiley   +1 more source

Chapter 39 Suspends, Belt

open access: yes, 2016
In Chapter 36 we noted that the anterior leaflet edge is roughly fixed in position throughout systole and in Chapter 28 that this edge position is almost independent of its interaction with the posterior leaflet. This suggests that effective coaptation requires the posterior leaflet to conform tightly to the edge of the stiff anterior leaflet.
Ingels, Jr, Neil B, Karlsson, Matts
openaire   +1 more source

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