Results 121 to 130 of about 4,149,746 (288)

Transformer‐Based PET/CT Fusion Enables Preoperative Prediction and Prognostic Stratification of Spread Through Air Spaces in Lung Adenocarcinoma

Advanced Science, EarlyView.
An eight‐stream 2.5D Transformer integrates complementary PET metabolic and CT morphologic information to estimate spread‐through‐air‐spaces risk before surgery in lung adenocarcinoma. The model generalizes across independent centers, while its continuous risk score independently stratifies progression‐free survival, supporting further prospective ...
Xin‐Yu Zhu, Meng Meng, Zhen‐Zhen Wang, Deng‐Lu Lu, Ya‐Min Wei, Xu‐Chang Mi, Xing‐Yu Mu, Wei Fu   +7 more
wiley   +1 more source

Multidisciplinary Optimization Design of Ultra‑high Altitude Solar UAV

Nanjing Hangkong Hangtian Daxue Xuebao
Ultra‑high altitude solar UAV has the characteristics of ultra‑high aspect ratio and ultra‑lightweight structure. Its aerodynamic layout parameters are not only closely related to the aerodynamic characteristics and static stability of the whole aircraft，
YAO Yuan, XU Yiming, ZHANG Yu, DAI Yuke, ZUO Jianwei   +4 more
doaj   +1 more source

Stress-constrained topology optimization using the constrained natural element method [PDF]

This paper presents a topology optimization framework to achieve volume minimization with Crossland fatigue constraints under proportional loading using the Constrained Natural Element Method.
CHEN, Yanda, MONTEIRO, Eric, Monteiro, E., FAVIER, Véronique, KOUTIRI, Imade   +4 more
core   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Feasibility Analysis of a Return to Launch Site Partially Reusable Microlauncher via Multidisciplinary Optimization

Aerospace
Reusable launch vehicles are a key category of next-gen European launchers, as multiple companies are in advanced stages of study and are shifting towards the development of first demonstrators.
Alexandru-Iulian Onel, Tudorel-Petronel Afilipoae, Oana-Iuliana Popescu, Georgiana Ichim, Alexandra Popescu, Ionuț Bunescu   +5 more
doaj   +1 more source

Topology optimization of structures in unilateral contact

, 2010
In this paper a general framework for topologyoptimization of structures in unilateral contact isdeveloped. A linear elastic structure that is unilaterallyconstrained by rigid supports is considered.
Klarbring, Anders, Strömberg, Niclas, Klarbring, A, Strömberg, Niclas,, Klarbring, Anders,   +4 more
core   +1 more source

Environmental Effects on RRAM Cells Based on 2D Halide Perovskite Materials

Advanced Electronic Materials, EarlyView.
RRAM offers high speed, scalability, and low power, positioning it as a next‐generation non‐volatile memory. Two‐dimensional halide perovskites show promise due to tunable optoelectronic properties and flexible processing but suffer from environmental sensitivity. This review examines degradation from humidity, temperature, light, and strain, discusses
Mojtaba Joodaki, Babitha Arun, Hartmut Hillmer, Chih‐Chieh Hsu   +3 more
wiley   +1 more source

Research on the layout design and optimization method for low drag and low sonic boom supersonic civil aircraft

Kongqi donglixue xuebao
Supersonic civil aircraft have become one of the important directions for the future development of civil aviation. For the rapid conceptual design and performance optimization of supersonic civil aircraft layouts, an aerodynamic optimization framework ...
Qinze Zheng, Yu Liang, Chong Pan, Lifeng Wang   +3 more
doaj   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss, Michael Seibt, Martin Wenderoth, Oliver Bünermann, Ole Bunjes, Till Domröse, Christian Eckel, Francesca Falorsi, Christoph Flathmann, Monica Kolek Martinez de Azagra, Matthias Krüger, Jonas Lindner, Tobias Meyer, Claus Ropers, Ulrich Ross, Kai Rossnagel, Sreeju Sreekantan Nair Lalithambika, Simone Techert, Georg A. Traeger, Cynthia Volkert, R. Thomas Weitz, Alec M. Wodtke   +21 more
wiley   +1 more source

Improving Organizations by Replacing the "Mechanical" Model with the "Organic" one [PDF]

Informatică economică, 2007
Organizations are currently viewed as artificial structures. However, in our opinion, organizations seem to match a biological structure much better. This paper explores this new approach with some interesting conclusions and results: organizations aim ...
doaj