Results 141 to 150 of about 227,483 (326)

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

A high accuracy measurement of CH4 and CO2 using system state parameter equivalence correction method

Frontiers in Physics
To enable to achieve high performance measurement of CH4 and CO2 gases in the field environment, a measuring system using infrared tunable diode laser absorption spectroscopy (TDLAS) technology was proposed in this paper.
Yebo Liu, Xiaofeng Li, Jiayuan Chen, Liang Du, Pengcheng Lu, Chen Chen   +5 more
doaj   +1 more source

Solid-State Excitation Laser for Laser-Ultrasonics [PDF]

, 2010
The inspection speed of laser-ultrasonics compared with conventional ultrasonic testing is limited by the pulse repetition rate of the excitation laser.
Fix, A., Frede, M., Mahnke, P., Neumann, J., Peuser, P., Platz, W., Schnars, U.   +6 more
core  

Enhancing the Ferroelectricity of MAPbI3 via Hydroxyl Groups to Boost Photocatalytic Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydroxyl groups in (EOA)2PbBr4 enable a rearrangement of the polar MA+ ions in MAPbI3, which enhances the Ps‐electric field and promotes the separation of photogenerated carriers. Consequently, the (EOA)2PbBr4/MAPbI3 composite exhibits the enhanced CO production yield in photocatalytic CO2 reduction reactions.
Zhaohui Fang, Zhihan Yu, Yulong Liao, Yuanxun Li, Minshu Chen, Yuan Teng, Quanjun Xiang   +6 more
wiley   +1 more source

Management of Gingival Overgrowth During Orthodontic Treatment Using a Blue Laser: A Case Report [PDF]

Clin Case Rep
ABSTRACT Blue laser‐assisted management of gingival overgrowth demonstrated excellent healing with minimal postoperative scarring, along with reduced pain and bleeding, and a relatively shorter surgical time. Despite a partial relapse observed after 3 months, this incisional intervention facilitated the orthodontist's ability to achieve a more ...
Assaf R, Hamadah O.
europepmc   +2 more sources

Development of Selective Plane Illumination Surface Enhanced Raman Scattering Spectral Microscopy for Improved Cellular Imaging

Journal of Raman Spectroscopy, EarlyView.
Selective plane illumination (SPI) is combined with SERS spectral imaging to reduce background, improve image contrast, and enable improved spectroscopy from molecules on the surface of nanoparticles. This approach provides improved imaging and spectroscopy from nanoparticles in complex environments, such as biological cells.
Abigail E. Smith, Zachary D. Schultz
wiley   +1 more source

Oral PHGG ameliorates atopic dermatitis‐like dermatitis with concurrent modulation of colonic IgA and cecal microbiota: implications for the gut–skin axis

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Atopic dermatitis (AD) is increasingly recognized as a systemic inflammatory disorder linked to intestinal immune and microbiome dysregulation. However, whether dietary galactomannan fibers can mitigate AD through coordinated modulation of the gut–skin axis remains unexplored.
Derrick Kakooza, Hyeonjun Yu, Jonghyun Jeong, Jung Cheul Shin, Woo Jung Kim, Sung‐Kwon Moon, Hoon Kim   +6 more
wiley   +1 more source

Tunable diode laser absorption spectroscopy characterization of impulse hypervelocity CO2 flows

, 2009
Doctorat en Sciences de l ...
openaire   +2 more sources

A Shock‐Tube Study of the HCl + M →$\to $ H + Cl + M (M = Ar) Rate Constant Using HCl Laser Absorption Near 3.3 µm

International Journal of Chemical Kinetics, EarlyView.
ABSTRACT Hydrogen chlorine (HCl) is an important combustion intermediate during plastic (municipal waste) and composite propellant (aerospace) combustion, but the understanding of its high‐temperature chemistry is still evolving. In this study, the pyrolysis of 0.5% HCl in Ar was investigated behind reflected shock waves in a shock tube at temperatures
Claire M. Grégoire, Olivier Mathieu, Eric L. Petersen   +2 more
wiley   +1 more source

NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes

Laser &Photonics Reviews, EarlyView.
This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber, Mithun Pal, Lukas Fürst, Emily Hruska, Christoph Gruber, Marcus Ossiander, Birgitta Bernhardt   +6 more
wiley   +1 more source