Results 21 to 30 of about 278,880 (218)

Optimization and Optimizers for Adversarial Robustness

CoRR, 2023
Empirical robustness evaluation (RE) of deep learning models against adversarial perturbations entails solving nontrivial constrained optimization problems. Existing numerical algorithms that are commonly used to solve them in practice predominantly rely on projected gradient, and mostly handle perturbations modeled by the $\ell_1$, $\ell_2$ and $\ell_\
Hengyue Liang, Buyun Liang 0001, Le Peng, Ying Cui, Tim Mitchell, Ju Sun   +5 more
openaire   +2 more sources

Development of spatially variant photonic crystals to control light in the near-infrared spectrum

Scientific Reports, 2022
Spatially Variant Photonic Crystals (SVPCs) have shown the ability to control the propagation and direction of light in the near-infrared spectrum. Using a novel approach for simplified modeling and fabrication techniques, we designed unique, spatially ...
Andrew Volk, Amit Rai, Imad Agha, Tamara E. Payne, Jimmy E. Touma, Rudra Gnawali   +5 more
doaj   +1 more source

Optimizing Thermalization

Physical Review Letters, 2022
9 pages, 4 figures. Accompanying paper of arXiv:2111.12130.
Kamil Korzekwa, Matteo Lostaglio
openaire   +6 more sources

Rapid and reliable re-design of miniaturized microwave passives by means of concurrent parameter scaling and intermittent local tuning

Scientific Reports, 2023
Re-design of microwave passive components for the assumed operating frequencies or substrate parameters is an important yet a tedious process. It requires simultaneous tuning of relevant circuit variables, often over broad ranges thereof, to ensure ...
Slawomir Koziel, Anna Pietrenko-Dabrowska   +1 more
doaj   +1 more source

Study on Synergistic Effect of Directional Chemical Reaction⁃Assisted SAGD under Three⁃Dimensional Physical Simulationon

Shiyou huagong gaodeng xuexiao xuebao
In the process of heavy oil thermal recovery using SAGD (Steam⁃Assisted Gravity Drainage) technology, conventional thermal recovery boilers are mainly used for heat generation.
Tao LIN, Qiaobo WANG, Hongzhi SONG, Zhongtao YUAN, Tianliang LI   +4 more
doaj   +1 more source

Time and Power Allocation for Energy Efficiency Maximization in Wireless-Powered Full-Duplex Relay Systems

Future Internet, 2019
In this paper, we propose an optimal time and power allocation scheme in a wireless power supply full-duplex (FD) relay system, where we consider the number of relay antennas in the energy harvesting stage.
Xin Song, Yue Ni, Xiuwei Han, Lei Qin, Li Dong   +4 more
doaj   +1 more source

A subexponential-time, polynomial quantum space algorithm for inverting the CM group action

Journal of Mathematical Cryptology, 2020
We present a quantum algorithm which computes group action inverses of the complex multiplication group action on isogenous ordinary elliptic curves, using subexponential time, but only polynomial quantum space.
Jao David, LeGrow Jason, Leonardi Christopher, Ruiz-Lopez Luis   +3 more
doaj   +1 more source

A SiO2 Hybrid Enzyme-Based Biosensor with Enhanced Electrochemical Stability for Accuracy Detection of Glucose

International Journal of Analytical Chemistry, 2023
A novel enzyme-based biosensor for glucose detection is successfully developed using layer-by-layer assembly technology. The introduction of commercially available SiO2 was found to be a facile way to improve overall electrochemical stability.
Li Mei, Yiting Yang, Jiagen Li, Shuyong Shang, Xiaohong Fu   +4 more
doaj   +1 more source

Research on polymer solution rheology in polymer flooding for Qikou reservoirs in a Bohai Bay oilfield

Journal of Petroleum Exploration and Production Technology, 2018
This study explored the potential applications of three newly modified polymers [a linear polymer, a hydrophobic association of partially hydrolyzed polyacrylamide (HAHPAM), and a polymer–surfactant] as flooding agents in a specific oilfield. Rheological
Leilei Tie, Meng Yu, Xiang Li, Wenhui Liu, Bo Zhang, Zhen Chang, Yufei Zheng   +6 more
doaj   +1 more source

Are Fertility Preservation Procedures Before Gonadotoxic Therapy and Hematopoietic Stem Cell Transplantation Feasible and Safe in Very Young Children? A Retrospective Cohort Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian, Yannick Braun, Till‐Martin Theilen, Anke Barnbrock, Theresa Rohm, Fabienne Hammant, Nicole Sänger, Aynura Abbasova‐Semiz, Jan‐Henning Klusmann, Thomas Klingebiel, Udo Rolle, Peter Bader, Henning C. Fiegel, Andrea Jarisch   +13 more
wiley   +1 more source