Results 101 to 110 of about 24,977,723 (298)

Homeland Security Affairs Journal, Volume 14 / 2018 [PDF]

, 2018
Homeland Security Affairs is the peer-reviewed online journal of the Naval Postgraduate School Center for Homeland Defense and Security (CHDS), providing a forum to propose and debate strategies, policies, and organizational arrangements to strengthen U ...

core   +1 more source

Regional trade and sustainable intensification advance rice self-sufficiency in East Africa

Environmental Research Letters
Many global regions, including East Africa, implement policy goals advocating increased agricultural self-sufficiency to promote economic development and food security. Required increases in production can, however, negatively impact the environment.
Julian Joseph, Diana Luna Gonzalez, Günther Fischer, Sylvia Tramberend, Taher Kahil   +4 more
doaj   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

Advanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin, Gloria R. Young, Francesca Tallia, Reece N. Oosterbeek, Shaaz Ghouse, Edward Spiers, Nupur Kohli, Tom Briggs, Marc Masen, Siwei Li, Ren‐Jei Chung, Jonathan R. T. Jeffers, Julian R. Jones   +12 more
wiley   +1 more source

Edge‐Channel Aggregation Network and Two‐Stage Fine Tuning Scheme for Handwritten Dongba Character Recognition

CAAI Transactions on Intelligence Technology
Handwritten Dongba Character Recognition (HDCR) contains a large number of visually similar characters with subtle and fragile edge cues, posing severe challenges to feature learning. To address this issue, an Edge Channel Aggregation Network (EdgeCANet)
Xiali Li, Yang Xiao, Xiaojun Bi, Yanlong Luo   +3 more
doaj   +1 more source

Untangling Sudan’s Discord: Decrypting the Intricate Threads of Turmoil

The Journal of Intelligence, Conflict and Warfare
The conflict in Sudan between its military forces and a rival paramilitary group, exacerbated by allied militias, has escalated into a dire humanitarian crisis, reminiscent of past civil wars where hundreds of thousands perished.
Frederick Appiah Afriyie
doaj   +1 more source

Electrodeposition in Structural Lattices of Variable Architectures

Advanced Engineering Materials, EarlyView.
Electrodeposition enables geometry‐sensitive, autonomous void filling while simultaneously tuning chemical and mechanical properties. The development of approaches that can autonomously fill and heal material voids and yield composites with tailorable properties is increasingly relevant in engineering.
Yeong‐Man Kwon, Jingwen Zhang, Guido Musso, Alessandro F. Rotta Loria   +3 more
wiley   +1 more source

National Security Commission on Artificial Intelligence: First Quarter Recommendations, March 2020 [PDF]

, 2020
A quarterly report detailing recommendations for areas identified in most need of attention, ripe for action, or foundational to AI and national security.
National Security Commission on Artificial Intelligence (U.S.)
core  

Microstructure‑Dependent Phase Transformations Under High‑Pressure Laser Heating in Additively Manufactured AlCrFe2Ni2

Advanced Engineering Materials, EarlyView.
Additively manufactured AlCrFe2Ni2 with contrasting BCC/B2‐dominant and lamellar FCC + BCC/B2 microstructures exhibits the same pressure‐induced BCC/B2 → HCP transformation. Under laser heating at high pressure, HCP is destabilized, and a cubic BCC/B2 + FCC assemblage is recovered, while the lower‐scan‐speed microstructure transforms at a lower ...
Raimundas Sereika, Hunter Kantelis, Yogesh K. Vohra, Shengbiao Zhang, Wuxian Yang, Wen Chen   +5 more
wiley   +1 more source

Lightweight tomato ripeness detection algorithm based on the improved RT-DETR

Frontiers in Plant Science
Tomatoes, widely cherished for their high nutritional value, necessitate precise ripeness identification and selective harvesting of mature fruits to significantly enhance the efficiency and economic benefits of tomato harvesting management.
Sen Wang, Sen Wang, Huiping Jiang, Huiping Jiang, Jixiang Yang, Jixiang Yang, Xuan Ma, Xuan Ma, Jiamin Chen, Jiamin Chen, Zhongjie Li, Zhongjie Li, Xingqun Tang, Xingqun Tang   +13 more
doaj   +1 more source