Results 141 to 150 of about 525,598 (308)

Progress Toward Efficient Wide‐Gap Cu(In,Ga)(S,Se)2 Thin‐Film Solar Cells

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
Wide‐gap Cu (In,Ga)(S,Se)2 thin‐film solar cells are studied in view of their performance, limitations, and opportunities for further optimization. Different sources of open circuit voltage limitations were discussed and weighted. Interface recombination appears the main recombination channel, which however can be influenced heavy alkali treatment ...
Setareh Zahedi‐Azad   +25 more
wiley   +1 more source

Exploring the Impedance Spectroscopy in Hole‐Conductor‐Free Mesoscopic Perovskite Solar Cells

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
This study employs impedance spectroscopy (IS) to investigate the carrier dynamics of printable perovskite solar cells (p‐MPSCs). The exceptional stability of p‐MPSCs enables reliable IS measurements under various conditions. We develop an equivalent circuit model to analyze the IS data, linking each circuit element to specific dynamic processes.
Cheng Qiu   +5 more
wiley   +1 more source

Dihotomy of Law: Historical Analysis, Current Trends, a Combination of Private and Public Principles in Civil Law

open access: yesТеоретическая и прикладная юриспруденция, 2019
The article is devoted to the perception of private and public law in the tradition of the Romano-German legal family. With the use of formal-logical, sociological-legal and retrospective methods of research the author studies the transformation of views
M. V. Tregubov
doaj  

Tracing holotype trajectories: Mapping the movement of the most valuable herbarium specimens

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Global efforts to protect biodiversity depend on fair access to key plant specimens. This study examines the distribution of 119,361 holotypes—unique herbarium specimens used to formally describe new plant species. By linking collection and storage data, we found that holotypes are increasingly held closer to their places of origin, particularly in ...
Dominik Tomaszewski   +2 more
wiley   +1 more source

Why Autonomous Vehicles Are Not Ready Yet: A Multi‐Disciplinary Review of Problems, Attempted Solutions, and Future Directions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong   +13 more
wiley   +1 more source

From Ministries of Food to National Food System Committees: A Global Mapping and Typology of Multisectoral Food System Governance Institutions

open access: yesSustainable Development, EarlyView.
ABSTRACT Transforming the ways food systems are governed is key to achieving better social, environmental, and economic outcomes, all crucial to sustainable development. Strong multisectoral governance is critical to achieving this, but there is little evidence on the structure and function of governance mechanisms in this context.
Dori Patay   +8 more
wiley   +1 more source

Unravelling the Green Hydrogen Value Chain: A Digital Sustainability Toolset Advancing Clean Energy and Decent Jobs

open access: yesSustainable Development, EarlyView.
ABSTRACT The transition to affordable and clean energy sources is essential for creating a sustainable future. Green hydrogen, as an emerging energy carrier, has the potential to meet increasing energy demands while mitigating environmental impact and achieving SDG 7.
A. Telukdarie, K. Murulane, X. Maphisa
wiley   +1 more source

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