Results 41 to 50 of about 43,714 (217)
Surface‐Spin‐Induced Magnetic Loss Enhancement in Ultralight Electromagnetic Absorbers
Advanced Science, EarlyView.Fe3O4 nanoparticles with different hollow rates were synthesized to demonstrate the key role of surface moment in magnetic loss process. Using the same volume filling ratio, the 54.1% hollow Fe3O4 absorber represents about 20% enhancement in the imaginary part (μ'') than solid particles due to the coexisting magnetic resonance of inside and outside ...
Ruimin Ren +5 more
wiley +1 more source
ENSURING QUALITY OF LIFE OF CANCER PATIENTS THROUGH OPTIMAL ORAL HEALTH
Journal of Cancer and Allied Specialties, 2018 -
Saima Chaudhry, Ayyaz Ali Khan
doaj +1 more source
Advanced Science, EarlyView.A graphene aerogel with a spherical‐pore structure is constructed via microbubble templating. This unique architecture suppresses strain‐induced percolation of conductive networks, enabling dynamic frequency tuning. It also delivers enhanced low‐frequency absorption with an effective absorption bandwidth of 2.56 GHz, covering 91% of the low‐frequency ...
Liang Li +7 more
wiley +1 more source
Advanced Science, EarlyView.This study reports lightweight, elastic ceramic fabrics with broadband electromagnetic absorption (EAB = 9.8 GHz) and high‐temperature thermal insulation, enabled by precise microstructural control during ultrafast high‐temperature sintering (UHS), which induces the precipitation of defect‐rich t‐ZrO2 nanograins and turbostratic C nanoclusters.
Jiahao Yang +9 more
wiley +1 more source
Modified MXene Aerogel With Broadband Microwave Absorption Inspired by Melanophila Acuminata Beetle
Advanced Science, EarlyView.This work introduces a novel biomimetic strategy inspired by the infrared‐sensing sensilla of the Melanophila acuminata beetle. We have designed a multi‐level aerogel, featuring a three‐dimensional carbon framework decorated with synergistic CeO2 nanoparticles and Ti3C2Tx MXene nanosheets.
Zhiwei Liu +6 more
wiley +1 more source
Radar Cross Section Reduction of Microstrip Patch Antenna using Metamaterial Techniques [PDF]
Journal of Electrical and Electronics Engineering, 2021 Radar cross section (RCS) reduction has become one of the critical research areas in recent years. The RCS of the target should be small to avoid detection.
Syamly SB, Job Chunkath
doaj
Advanced Science, EarlyView.By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Zhanming Wu +5 more
wiley +1 more source
Cailiao gongcheng, 2019 For the purpose of electromagnetic requirement without reflective layer, the absorbing properties of sandwich structures were calculated. According to the calculated results, different kinds of absorbing foams were prepared and the electromagnetic ...
MA Xiang-yu +5 more
doaj
Prevalence of malocclusion and orthodontic treatment need in 10-year-old New Zealand children
Australasian Orthodontic Journal, 2000 The need for orthodontic treatment was determined in a random sample of 10-year-old Dunedin, New Zealand schoolchildren using the Dental Aesthetic Index (DAI); an index based on the social acceptability of dental appearance.
Johnson Mark, Harkness Michael
doaj +1 more source
Glossa, 2017 Children with Specific Language Impairment (SLI) and children with Developmental Dyslexia (DD) have problems comprehending relative clauses (RCs) and find object RCs more difficult than subject RCs, as do typically developing children.
Bruna Molteni +4 more
doaj +2 more sources