Results 81 to 90 of about 47,067 (257)

Understanding cationic polyelectrolyte thermogels with varying charge densities toward biomaterials design

BMEMat, EarlyView.
Cationic polyurethane thermogels with customizable charge density were developed, exhibiting enhanced pH‐responsiveness. This work elucidates how cationic charges influence self‐assembly and thermogelling, providing insights for designing smart biomaterials.
Belynn Sim, Yi Jing Wong, Hamzah Kamaruddin, Qianyu Lin, Pablo Mota‐Santiago, Nigel Kirby, Alexis Lee, Yihao Leow, Alice Anhan Chen, Rubayn Goh, Xian Jun Loh   +10 more
wiley   +1 more source

Resonant THz sensor for paper quality monitoring using THz fiber Bragg gratings

, 2013
We report fabrication of THz fiber Bragg gratings (TFBG) using CO2 laser inscription on subwavelength step-index polymer fibers. A fiber Bragg grating with 48 periods features a ~4 GHz-wide stop band and ~15 dB transmission loss in the middle of a stop ...
Bock, Wojtek J., Chinifooroshan, Yasser, Markov, Andrey, Skorobogatiy, Maksim, Tripathi, Saurabh M., Yan, Guofeng   +5 more
core   +1 more source

Spatially resolved 23Na magnetic resonance dispersion measurement in porous media

The Canadian Journal of Chemical Engineering, EarlyView.
Quantitative 23Na MRI was employed to analyze dispersion in realistic core plug samples and was compared with the conventional breakthrough curve. 23Na MRI provided a more effective aassessment of core plug heterogeneity than the conventional method. Abstract Tracer tests are widely used in the petroleum industry to assess reservoir core plugs, relying
Rheya Rajeev, Mohammad Sadegh Zamiri, Andrés Ramírez Aguilera, Florea Marica, Laura Romero de Zerón, Bruce J. Balcom   +5 more
wiley   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Near-field terahertz time-domain spectroscopy for in-line electrical metrology of semiconductor integration processes for memory

Communications Engineering
Monitoring electrical properties in semiconductor integration processes is crucial in identifying electrical defects that determine the reliability and performance of metal oxide semiconductor field-effect transistors. A non-destructive in-line metrology
Sunhong Jun, Inkeun Baek, Suhwan Park, Eun Hyuk Choi, Jongmin Yoon, Iksun Jeon, Yoonkyung Jang, Martin Priwisch, Wontae Kim, Suncheul Kim, Taejoong Kim, Taeyong Jo, Myungjun Lee, Sungyoon Ryu, Namil Koo, Yusin Yang   +15 more
doaj   +1 more source

Application of Conductivity Combined with Various Other Instrumental Analyses in the Detection of the Freshness and Yolk-to-White Ratio of Liquid Egg [PDF]

Shipin Kexue
This study established a rapid and efficient technique to detect the freshness and yolk-to-white ratio of liquid egg based on conductivity combined with salinity, total dissolved solids (TDS), pH, and color parameters. The results showed that during the
DOU Wenhao, WANG Hailing, HUANG Zilong, YANG Fuming, CHI Yuan, CHI Yujie
doaj   +1 more source

Testing the validity of THz reflection spectra by dispersion relations

, 2005
Complex response function obtained in reflection spectroscopy at terahertz range is examined with algorithms based on dispersion relations for integer powers of complex reflection coefficient, which emerge as a powerful and yet uncommon tools in ...
A. Pashkin, E. Gornov, K.-E. Peiponen, K.-E. Peiponen, M. C. Nuss, M. Khazan, M. Kuwata-Gonokami, V. Lucarini, V. Lucarini, Y. Ino, Y. Svirko   +10 more
core   +1 more source

Corrosion effect of hydrochloric acid on the granite: Insights from electrical conductivity, mineral composition, and tensile behavior

Deep Underground Science and Engineering, EarlyView.
The evolution of electrical conductivity, mineral composition, and tensile behavior such as peak strength, average stiffness, and the energy evolution of the granite specimen under different HCl conditions are studied, analyzed as well as quantified, and investigated, respectively.
Yanan Gao, Yikang Cheng, Guanglei Cai, Yuan Gao, Jianwei Tian, Mingzhong Gao   +5 more
wiley   +1 more source

Mean sensitive, mean equicontinuous and almost periodic functions for dynamical systems

, 2019
We show that an $R^d$-topological dynamical system equipped with an invariant ergodic measure has discrete spectrum if and only it is $\mu$-mean equicontinuous (proven for $Z^d$ before).
García-Ramos, Felipe, Marcus, Brian
core   +1 more source

Bioinspired Janus Evaporator for Efficient Desalination of Saline‐Alkali and Seawater Through Photothermal‐Capillary Effects

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work combines textile technology to ingeniously integrate a hydrophobic PP/MXene photothermal sheath with a hydrophilic cotton core into functionalized yarns, successfully developing a Janus core‐sheath evaporator (PM‐CSY‐F). The evaporator demonstrates outstanding evaporation rates and efficient desalination efficiency when applied to treating ...
Qi Zhang, Pengfei Zhang, Shan Song, Chengyu Fu, Limeng Yang, Cuihong Sheng   +5 more
wiley   +1 more source