Results 41 to 50 of about 3,671 (259)

EPR Spectroscopy Investigation of Cu2+ Ions Adsorbed in Tannin-Formaldehyde Resins of Mimosa (Acacia mearnsii) Bark Extracts

Journal of Spectroscopy, 2015
The chemical environment of Cu2+ ions adsorbed in tannin-formaldehyde resins of Acacia mearnsii bark extracts, prepared from polybutene, is investigated by EPR spectroscopy at 300 K. The spectrum is simulated considering two isolated axial Cu(II) species
Marcelo H. Herbst, Ney V. Vugman
doaj   +1 more source

Design and placement of synthetic sex pheromone traps for cacao mirids in Ghana [PDF]

, 2018
Cacao mirids (Sahlbergella singularis, Distantiella theobroma and Bryocoropsis laticollis) were captured in pheromone traps releasing a 2:1 blend of the sex pheromone components of the two first named species in a series of five experiments on cacao ...
C.A.M. Campbell, D.R. Hall, Hall, Hardie, J.E. Sarfo, Lavabre, Wills   +6 more
core   +1 more source

Solid state thermal control polymer coating Patent [PDF]

, 1968
Development of solid state polymer coating for obtaining thermal balance in spacecraft ...
Pezdirtz, G. F.
core   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Film Thickness Changes in EHD Sliding Contacts Lubricated by a Fatty Alcohol

, 2006
This paper describes the appearance of abnormal film thickness features formed in elastohydrodynamic contacts lubricated by a fatty alcohol. Experiments were conducted by varying the slide to roll ratio between a steel ball and a glass disk in a ball-on ...
Vergne, Philippe, Yagi, Kazuyuki
core   +2 more sources

Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn2+ Migration in Quasi‐Solid‐State Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
The disordered growth of dendrites, corrosion, parasitic side reactions, slow de‐solvation kinetics, and inherent safety risks significantly hinder the practical deployment of conventional liquid electrolyte zinc‐ion batteries. In contrast, the novel PU‐EG+DMPA‐Zn polyurethane quasi‐solid‐state electrolyte, enriched with abundant polar functional ...
Ruiqi Liu, Changding Wang, Fu Wan, Kaida Hu, Da Yang, Yaoyang Xia, Wenwei Yin, Yupeng Lin, Yuejiao Chen, Shuhui Sun, Weigen Chen   +10 more
wiley   +1 more source

The effect of boundary slip on elastohydrodynamic lubrication [PDF]

, 2014
Pressure-induced boundary slip in elastohydrodynamic lubrication, on application of an oleophobic coating, is measured by photobleached-fluorescence imaging velocimetry.
Ponjavic, A, Wong, JSS
core   +1 more source

Robust and Reversible Thermofluorescence in Solvent‐Free Thermoplastic Polyurethane Composites

Advanced Functional Materials, EarlyView.
Thermofluorescent polymer composites with high‐contrast optical outputs are prepared by solvent‐free blending of indenoquinacridone dye into a thermoplastic polyurethane matrix. The temperature‐dependent fluorescence originates from aggregation–dissociation of the dye molecules, regulated by competing hydrogen bonds from the polymer matrix.
Guanghua Yu, Bowen Tian, Jazmine Aiya Marquez, Chia‐Min Hsieh, Qingsheng Wang, Hung‐Jue Sue, Mohammed Al‐Hashimi, Peiran Wei, Lei Fang   +8 more
wiley   +1 more source

Angle of repose and segregation in cohesive granular matter

, 2001
We study the effect of fluids on the angle of repose and the segregation of granular matter poured into a silo. The experiments are conducted in two regimes where: (i) the volume fraction of the fluid is small and it forms liquid bridges between ...
A. Castellanos, A. Kudrolli, A. Mehta, A. Samadani, A. Samadani, Azadeh Samadani, B.J. Persson, D.J. Hornbaker, G. McKinley, G.K. Batchelor, H.A. Makse, H.M. Jaeger, J. Bridgewater and, L. Bocquet, N. Fraysse, O. Pitois, P. Tegzes, R. Albert, R.M. Nedderman, S. Gaudet, S. Savage, T. Boutreax, T.C. Halsey, T.G. Mason, Y. Xu   +24 more
core   +1 more source

Characterization of Microplastics in Human Gastric Cancer and Control Tissues and Analysis of Associated Genetic Features

Advanced Healthcare Materials, EarlyView.
This study characterizes the presence of microplastics in human normal gastric, para‐tumor, and gastric tumor tissue and confirms the association between microplastic exposure and lymph node metastasis in gastric cancer. This study explores the transcriptomic changes induced by microplastic exposure, laying the foundation for further investigation into
Liqiao Chen, Jialin Li, Yan Wu, Han Bao, Xuesong Yang, Guoqing Lv, Ke Ji, Ji Zhang, Xiaojiang Wu, Kai Zhou, Jieli Xu, Jiatian Tang, Xiyuan Han, Anqiang Wang   +13 more
wiley   +1 more source