Results 51 to 60 of about 142,078 (293)

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

Advanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

Equivalence of the (generalised) Hadamard and microlocal spectrum condition for (generalised) free fields in curved spacetime [PDF]

, 2009
We prove that the singularity structure of all n-point distributions of a state of a generalised real free scalar field in curved spacetime can be estimated if the two-point distribution is of Hadamard form.
A. Strohmaier, D. Hall, E. Nelson, H.-J. Borchers, H.H. Schaefer, K. Pohlmeyer, K. Sanders, K. Schmüdgen, Ko Sanders, L. Hörmander, M. Dütsch, M.J. Radzikowski, O.W. Greenberg, P.G. Federbush, R. Brunetti, R. Verch, R.M. Wald, S. Hollands, S. Hollands   +18 more
core   +1 more source

Adapting to Changing Rainfall and Developing Off‐Farm Employment: Implications for the Adoption of Direct Seeding in Rice Production

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Rice is the main staple food for more than half of the world's population and the income from rice is an essential source for livelihoods of millions of households. We examine whether direct seed in rice production is an adaptation of rice farmers to rainfall changes and farm labor scarcity.
Manh Hung Do
wiley   +1 more source

Adaptive firing angle compensation control for mitigating DC subsequent commutation failure

电力工程技术, 2022
Subsequent commutation failure of the high voltage direct current (HVDC) transmission system has a seriously negative impact on the stable operation of the AC-DC hybrid power grid.
YANG Chengxiang, YAO Wei, ZHOU Hongyu, LI Peiping, LI Chenghao, WEN Jinyu   +5 more
doaj   +1 more source

The Role of Social Food Infrastructure in Addressing SNAP Participation Gaps: Evidence From Linked Administrative and Ground‐Sourced Data

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We link American Community Survey and SNAP records for 185,000 units with ground‐sourced social food infrastructure data from FindFoodIL (Illinois Extension SNAP‐Ed) to examine SNAP participation determinants among eligible units. Bivariate probit models reveal, beyond SNAP offices, quantity of social infrastructure is associated with ...
Michael Lotspeich‐Yadao, Caitlin Kownacki, Jennifer McCaffrey, Craig Wesley Carpenter   +3 more
wiley   +1 more source

Research on the characteristics of multi-infeed DC system with hybrid commutation converter suppressing successive commutation failure

International Journal of Electrical Power & Energy Systems
In view of the problem of successive commutation failure in multi-infeed direct current systems, this paper investigates the commutation characteristics of hybrid commutation convert technology and its application in mitigating successive commutation ...
Jian Cui, Zhichang Yuan, Kangsheng Cui, Long Zhang, Pengbo Zhao, Zhanqing Yu, Xiaoguang Wei, Xuejiao Han   +7 more
doaj   +1 more source

Full-Bridge Converter with Soft Commutation in All Load Range

Глобальная ядерная безопасность, 2022
The development of converters with soft commutation improves issues of radiation interference and electromagnetic compatibility, reduce weight and size parameters by increasing efficiency and conversion frequency.
S. A. Baran, G. P. Smetankin
doaj   +1 more source

Commutation relations and hypercyclic operators [PDF]

, 2012
In this paper we establish hypercyclicity of continuous linear operators on $H(\mathbb{C})$ that satisfy certain commutation relations.Comment: Published in Archiv der Mathematik, the final publication is available at springerlink ...
Kim, Vitaly E.
core   +1 more source

Measuring Nutrition Security Using the Consumer Food Data System Datasets

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT Nutrition security is an emerging concept lacking a consensus definition, conceptualization, or standardized measure. This perspectives manuscript synthesizes findings from two previously published analyses to assess the feasibility of using available measures of key dimensions of nutrition security from two Consumer Food Data System (CFDS ...
Vibha Bhargava, Jung Sun Lee, Travis A. Smith   +2 more
wiley   +1 more source

Reliability analysis and reliable operation of three-level ANPC inverter

Frontiers in Energy Research, 2023
The three-level active neutral-point-clamped (3L-ANPC) inverters have been widely used in medium-voltage high-power electrical drives. The purpose of this paper is to achieve the reliable operation for 3L-ANPC inverters by reliability analysis and ...
Xiaolin Zheng, Xiaoxiao Huang, Peiyu Chen, Zhiqiang Chong, Zhongchen Yuan   +4 more
doaj   +1 more source