Results 51 to 60 of about 10,396 (188)

Derivation of Calabi-Yau Crystals from Chern-Simons Gauge Theory [PDF]

, 2005
We derive new crystal melting models from Chern-Simons theory on the three-sphere. Via large N duality, these models compute amplitudes for A-model on the resolved conifold.
Okuda, Takuya
core   +2 more sources

Graph neural network‐based attack prediction for communication‐based train control systems

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract The Advanced Persistent Threats (APTs) have emerged as one of the key security challenges to industrial control systems. APTs are complex multi‐step attacks, and they are naturally diverse and complex. Therefore, it is important to comprehend the behaviour of APT attackers and anticipate the upcoming attack actions.
Junyi Zhao, Tao Tang, Bing Bu, Qichang Li   +3 more
wiley   +1 more source

A Single-Stage LED Driver Based on ZCDS Class-E Current-Driven Rectifier as a PFC for Street-Lighting Applications [PDF]

, 2018
This paper presents a light-emitting diode (LED) driver for street-lighting applications that uses a resonant rectifier as a power-factor corrector (PFC).
Chainarin Ekkaravarodome, Kamon Jirasereeamornkul, Kohji Higuchi, Marian K. Kazimierczuk, Phatiphat Thounthong, Satit Mangkalajan   +5 more
core   +2 more sources

Time‐Domain Computation of Propagation Characteristics of Partial Discharge in Cross‐Linked Polyethylene High‐Voltage Cable Incorporating Modified Frequency‐Dependent Parameters

High Voltage, EarlyView.
ABSTRACT The propagation characteristics of partial discharge (PD) in cables impact PD detection sensitivity, defect localisation accuracy and defect severity evaluation. Currently, the effects of semiconducting materials' frequency‐dependent properties and corrugated aluminium sheath structures on PD signal propagation in high‐voltage (HV) cables ...
Weisheng He, Yang You, Zhaoguo Wu, Zhe Hou, Xiong Liu, Xiao Ren, Yuan Yan   +6 more
wiley   +1 more source

A Comprehensive Analysis of Losses and Efficiency in a Buck ZCS Quasi-Resonant DC/DC Converter

Journal of Low Power Electronics and Applications
As power electronics continue to advance, the demand for highly efficient and low-loss DC/DC converters has grown significantly. This article comprehensively analyses ZCS quasi-resonant switch cell losses and efficiency in buck L-type zero-current ...
Nikolay Hinov, Tsvetana Grigorova
doaj   +1 more source

Is surgery more effective than non-surgical treatment for spinal stenosis and which non-surgical treatment is more effective? a systematic review [PDF]

, 2013
BACKGROUND: Spinal stenosis can be treated both conservatively and with decompression surgery. OBJECTIVES: To explore the effectiveness of surgery vs conservative treatment, and conservative interventions for spinal stenosis.
Comer, C, May, Stephen
core   +1 more source

Membranes for Periodontal and Bone Regeneration: Everything You Need to Know

Journal of Periodontal Research, EarlyView.
This paper presents and highlights a summary of the past, present, and future of membranes for oral regeneration in clinical applications and fundamental studies. ABSTRACT Implant dentistry and periodontology have shown an increasing demand for regenerative procedures associated with biomaterials targeting successful clinical outcomes and predictable ...
Marcel F. Kunrath, Gabriel L. Magrin, Candida S. Zorzo, Ingrid Rigotto, Hanna Aludden, Christer Dahlin   +5 more
wiley   +1 more source

Comparative assessment of clinical performance and Streptococcus mutans adherence in primary molars restored with Bioflx and Zirconia crowns: A split-mouth pilot study

Journal of Indian Society of Pedodontics and Preventive Dentistry
Aim: To evaluate and compare the clinical efficiency and Streptococcus mutans adherence in primary molars restored with Bioflx and Zirconia crowns (ZCs).
Apoorva Goswami, Hemalatha Ramkumar, Shankar Paulindraraj, Trophimus Gnanabagyan Jayakaran, Kalpana Hari Krishnan, Aroonika Bedre   +5 more
doaj   +1 more source

FORMATION OF «FALSE ANNUAL RINGS» ON SCALE OF JUVENILE COHO SALMON ONCORHYNCHUS KISUTCH IN LAKE KURSIN (LOWER KAMCHATKA RIVER)

Известия ТИНРО, 2019
During spring-summer flood (in June-July). transit underyearling of coho salmon, having or having no scales, migrate to Lake Kursin at the lower Kamchatka River, where resident coho salmon never spawn.
V. F. Bugaev, D. P. Pogorelova
doaj   +1 more source

A Fault-Tolerant T-Type Multilevel Inverter Topology with Soft-Switching Capability Based on Si and SiC Hybrid Phase Legs [PDF]

, 2016
The performance of a novel three-phase four-leg fault-tolerant T-Type inverter topology is presented in this paper, which significantly improves the inverter\u27s fault-tolerant capability regarding device switch faults.
Demerdash, Nabeel, He, Jiangbiao, Katebi, Ramin, Wei, Lixiang, Weise, Nathan   +4 more
core   +1 more source