Results 91 to 100 of about 71,933 (344)

Toughness of Confined Auxetic Foams

Advanced Engineering Materials, EarlyView.
Auxetic (negative Poisson's ratio) materials offer benefits such as impact mitigation, thermal insulation, vibration damping, and reduced shear strain, although their fracture mechanics are largely unexplored. This study investigates damage initiation and propagation in confined re‐entrant auxetic foams from polyurethane via experimental ...
Adrianos E. F. Athanasiadis, Oliver Duncan, Michal K. Budzik, Marcelo A. Dias   +3 more
wiley   +1 more source

Potential of 5% tamarind extract gel as an etching agent: tensile strength and scanning electron microscope (SEM) evaluation

Dental Journal, 2020
Background: Acid etching is a stage in obtaining bonds between composites and enamel. The application of acid to the enamel surface, however, can cause dissolution of hydroxyapatite and demineralisation of the enamel surface.
Erawati Wulandari, Faiqatin Cahya Ramadhani, Nadie Fatimatuzzahro   +2 more
doaj   +1 more source

The Prevalence of Carbon-13 in Respiratory Carbon Dioxide As an Indicator of the Type of Endogenous Substrate. The change from lipid to carbohydrate during the respiratory rise in potato slices [PDF]

, 1970
Isotope discrimination is a common feature of biosynthesis in nature, with the result that different classes of carbon compounds frequently display different 13C/12C ratios.
Epstein, Samuel, Jacobson, Bruce S., Laties, George G., Smith, Bruce N.   +3 more
core   +2 more sources

Experiments And Modeling Of Ion Exchange Resins For Nuclear Power Plants

, 2012
Resins are used in nuclear power plants for water ultrapurification. Two approaches are considered in this work: column experiments and simulations. A software called OPTIPUR was developed, tested and used. The approach simulates the onedimensional reactive transport in porous medium with convectivedispersive transport between particles and diffusive ...
Mabrouk, Aurélie, Lagneau, Vincent, de Dieuleveult, Caroline, Bachet, Martin, Schneider, Hélène, Coquelet, Christophe   +5 more
openaire   +4 more sources

Comparative Study of Experimental Methods for Measuring Thermal Properties of 100Cr6 Steel Powders

Advanced Engineering Materials, EarlyView.
This study investigates the thermal properties of 100Cr6 steel in both bulk and powder forms. Measuring the very low thermal conductivity typically exhibited by powders poses significant challenges. To address this, two novel measurement techniques—temperature gradient and finite laser pulse response—are introduced and evaluated by comparison with the ...
Junsheng Zhuo, Hagen P. Kohl, Dongmei Liu, Lisa Matthäus, Arne Bochmann, Aaron Berger, Sebastian Weber, Stefan Nolte, Stephanie Lippmann   +8 more
wiley   +1 more source

Dependence of Na+ leakage on intrinsic properties of cation exchange resin in simulated secondary environment for nuclear power plants

Nuclear Engineering and Technology, 2023
Material corrosion in nuclear power plant (NPP) is not controlled only by amine injection but also by ion exchange (IX) which is the best option to remove trace Na+. This study was conducted to understand the Na+ leakage characteristics of IX beds packed
Hyun Kyoung Ahn, Chi Hyun An, Byung Gi Park, In Hyoung Rhee   +3 more
doaj  

Agro-materials : a bibliographic review [PDF]

, 2002
Facing the problems of plastic recycling and fossil resources exhaustion, the use of biomass to conceive new materials appears like a reasonable solution.
A. Rouilly, Archodulaki V.-M., Arvanitoyannis I.S., Bassi S., Bastioli C., Biliaderis C.G., Boye J.I., Bureau G., Coffey D.G., Dalgleish D.G., Damodaran S., Damodaran S., Di Gioia L., Donth E.-J., Dulog L., Ernst A.J., Fennema O.R., Gennadios A., Gennadios A., Gerngross T.U., Gregory S.R., Hague J., Helme J.-P., Huang H.C., Iglesias H.A., L. Rigal, Li Y., Lim J.-K., Lourdin D., McCarthy J.L., Miers J., Moe S.T., Nayak P.L., Oakenfull D., Onteniente J.-P., Onteniente J.-P., Otaigbe J.U., Otaigbe J.U., Otaigbe J.U., Poppe J., Poutanen K., Rees D.A., Scheer H., Schröter E., Segalen P., Showmura R.S., Stauderer M., Swenson H., Tomihata K., Voragen A.G.J., Yamaguchi H., Yamauchi K.   +51 more
core   +1 more source

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

Advanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung, Sung Yoon Min, Byungsoo Kang, Yongseok Yoo, Jihun Jang, Yeoun‐Woo Jang, Hyojeong Choi, Hyeong Won Lee, Swarup Biswas, Yongju Lee, Mansoo Choi, Phillip Lee, Min Seok Jang, Hyeok Kim, Shu Yang   +14 more
wiley   +1 more source

Firm Entry, Productivity Differentials and Turnovers in Import Substituting Markets: A study of the petrochemical industry in Colombia [PDF]

This paper analyses plant entry, total factor productivity growth, average productivity level differentials and turnovers across Colombia's petrochemical industry for the 1974-1998 period.
Carlos Pombo, Luis Gutierrez
core  

Extracorporeal Catalytic Hemoperfusion Therapy for Refractory Septic Shock Using Ceria Nanoparticle‐Embedded Porous Microbeads

Advanced Functional Materials, EarlyView.
This study introduces an extracorporeal hemoperfusion system incorporating porous microbeads embedded with autocatalytic ceria nanoparticles (CeNPs) for targeted reactive oxygen species (ROS) scavenging in septic shock. The blood‐compatible hemoperfusion cartridge demonstrated significant improvements in survival, hemodynamic stability, and organ ...
Pilseon Im, Han‐Gil Jeong, Donghee Kim, Jimin Song, Ngoc Man Phan, Eun‐seo Choi, Young‐Min Kim, Seo‐Hyeon Jeong, Jooho Park, Inwon Park, Jaeyun Kim   +10 more
wiley   +1 more source