Results 101 to 110 of about 239,856 (283)

Born-Infeld with Higher Derivatives

, 2012
We present new models of non-linear electromagnetism which satisfy the Noether-Gaillard-Zumino current conservation and are, therefore, self-dual. The new models differ from the Born-Infeld-type models in that they deform the Maxwell theory starting with
Chemissany, Wissam, Kallosh, Renata, Ortin, Tomas   +2 more
core   +1 more source

Advanced Techniques for Scalable Woven E‐Textiles Manufacturing

Advanced Materials Technologies, EarlyView.
This review highlights recent advances in scalable weaving techniques for e‐textiles, emphasizing innovations in multilayer structures, conductive yarn integration, and loom modifications. It summarizes emerging materials, fabrication strategies, and performance considerations that enable reliable, durable, and industrially scalable woven electronic ...
Faisal Abedin, Seonyoung Youn, Amanda C. Mills   +2 more
wiley   +1 more source

Mechanical characteristics analysis of the downhole completion string in the open hole section of a small wellbore

Frontiers in Mechanical Engineering
For horizontal wells with small wellbores and large-diameter pipe strings, pipe sticking is prone to occur during oilfield completion operations. Avoiding pipe sticking can effectively save construction costs.
Liangliang Dong, Weijian Yang, Hongli Li, Bo Li, Xiaohua Zhu   +4 more
doaj   +1 more source

Extremal black holes in D=5: SUSY vs. Gauss-Bonnet corrections

, 2007
We analyse near-horizon solutions and compare the results for the black hole entropy of five-dimensional spherically symmetric extremal black holes when the N=2 SUGRA actions are supplied with two different types of higher-order corrections: (1 ...
A. Castro, A. Castro, A. Castro, A. Dabholkar, A. Dabholkar, A. Dabholkar, A. Sen, A. Sen, A. Sen, A. Sen, A. Sinha, B. Pioline, B. Sahoo, B. Sahoo, C. Vafa, D. Astefanesei, D. Astefanesei, D. Bak, D.P. Jatkar, F. Larsen, G. Lopes Cardoso, G. Lopes Cardoso, G.L. Cardoso, H.K. Kunduri, Ivica Smolić, J.R. David, J.R. David, J.R. David, K. Goldstein, M. Alishahiha, M. Alishahiha, M. Cvitan, M. Guica, M.-x. Huang, M.R. Garousi, Maro Cvitan, P. Kraus, P. Kraus, P. Prester, Predrag Dominis Prester, R.-G. Cai, R.-G. Cai, Silvio Pallua, V. Hubeny   +43 more
core   +1 more source

Roadmap to Precision 3D Printing of Cellulose: Rheology‐Guided Formulation, Fidelity Assessment, and Application Horizons

Advanced Materials Technologies, EarlyView.
This critical review presents a comprehensive roadmap for the precision 3D printing of cellulose. Quantitative correlations link ink formulation and rheological properties to print fidelity and final material performance. This framework guides the development of advanced functional materials, from biomedical scaffolds to electromagnetic shielding ...
Majed Amini, Hadi Hosseini, Seyyed Alireza Hashemi, Mohammad Arjmand   +3 more
wiley   +1 more source

Development and Application of Hydraulic Control Gas Lift Mandrel

Shiyou jixie, 2017
To address the issue of continuous gas lift string with conventional gas lift valve being unable to build casing pressure, a hydraulic control mandrel has been developed.
Gao Xiang, Xiao Guohua, Jiang Weizhong, Wang Lei, Huang Mei   +4 more
doaj  

Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators

Advanced Materials Technologies, EarlyView.
Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks, Burhan Bin Asghar Abbasi, Zhen Jiang   +2 more
wiley   +1 more source

Logarithmic Corrections to Schwarzschild and Other Non-extremal Black Hole Entropy in Different Dimensions

, 2013
Euclidean gravity method has been successful in computing logarithmic corrections to extremal black hole entropy in terms of low energy data, and gives results in perfect agreement with the microscopic results in string theory.
A Ashtekar, A Ashtekar, A Chatterjee, A Ghosh, A Ghosh, A Ghosh, A Majhi, A Medved, A Sen, A Strominger, Ashoke Sen, BR Majhi, C Cherubini, D Vassilevich, DN Page, DV Fursaev, DV Fursaev, G Gibbons, I Mandal, J Breckenridge, J Engle, J Engle, J Engle, KA Meissner, KS Gupta, KV Krasnov, L Smolin, M Bañados, M Domagala, M Duff, M Duff, M Duff, M-I Park, N Mavromatos, ND Birrel, P Kraus, PB Gilkey, R Aros, R Banerjee, R Banerjee, R Basu, R-G Cai, RB Mann, RB Mann, RC Myers, RK Kaul, RK Kaul, RK Kaul, S Banerjee, S Banerjee, S Bhattacharyya, S Carlip, S Christensen, S Christensen, S Christensen, S Das, S Das, S Ferrara, S Mukherji, SN Solodukhin, SN Solodukhin, SN Solodukhin, SN Solodukhin, T Govindarajan, T Jacobson   +64 more
core   +1 more source

Scalable Task Planning via Large Language Models and Structured World Representations

Advanced Robotics Research, EarlyView.
This work efficiently combines graph‐based world representations with the commonsense knowledge in Large Language Models to enhance planning techniques for the large‐scale environments that modern robots will need to face. Planning methods often struggle with computational intractability when solving task‐level problems in large‐scale environments ...
Rodrigo Pérez‐Dattari, Zhaoting Li, Robert Babuška, Jens Kober, Cosimo Della Santina   +4 more
wiley   +1 more source

A geometric analysis-based approach toward mechanical analytics of multi-packer completion tubular string

Journal of Petroleum Exploration and Production Technology
Multi-packer completion strings have played a pivotal role in secure exploitation of oil and gas, increasing production and mitigating greenhouse gas emissions.
Tiannan Deng, Ziqiang Zeng, Jiuping Xu, Jinxing Wen   +3 more
doaj   +1 more source