Results 101 to 110 of about 43,826 (248)

Contact cleaning of polymer film solar reflectors [PDF]

, 2015
This paper describes the accelerated ageing of polymer film reflecting surfaces under the conditions to be found during contact cleaning of Concentrating Solar Power (CSP) collectors in the presence of dust and sand particles.
Almond, Heather, Fernandez-Garcia, Aranzazu, King, Peter, Martinez-Arcos, Lucia, Sansom, Christopher, Sutter, Florian   +5 more
core   +3 more sources

Overcoming Challenges in 3D Printing of Polyolefins and Their Composites: A Review on Strategies for Improved Printability and Performance

Polymer Engineering &Science, EarlyView.
This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan, Philip McMorran, Marwan Eid, Julia Blair, Amar K. Mohanty, Manjusri Misra   +5 more
wiley   +1 more source

Microcraters in aluminum foils exposed by Stardust [PDF]

, 2006
We will present preliminary results on the nature and size frequency distribution of microcraters that formed in aluminum foils during the flyby of comet Wild 2 by the Stardust ...
Borg, J., Bradley, J.P., Bridges, John, Brownlee, D.E., Burchell, M.J., Cole, M.J., Dai, Z.R., Djouadi, Z., Floss, C., Franchi, I.A., Graham, G.A., Green, S.F., Heck, P., Hoppe, P., Hörz, F., Kearsley, A.T., Leitner, J., Leroux, H., Marhas, K.K., Schwandt, C.S., See, T.H., Stadermann, F.J., Stardust Cratering Team, The, Stephan, T., Teslich, N., Troadec, D., Tsou, P., Zolensky, M.E.   +27 more
core  

Process Window Optimization for Roll‐to‐Roll Slot‐Die Coating of High‐Resolution Dry Film Solder Resists for HDI PCB Applications

Polymer Engineering &Science, EarlyView.
A hydrodynamic process window for roll‐to‐roll slot‐die coating of photosensitive solder resist (PSR) was established by systematically varying the slot‐die gap and pump flow rate. Under the optimized conditions, a highly uniform 26 μm dry‐film solder resist (DFSR) layer with a thickness variation of ±3.74% was obtained without coating defects.
Geonu Kim, Woo Cheol Choi, Min Kwak, Jin Ho Shin, Jin Yong Seok, Ki‐Seok Jeon, Mincheol Chang, Chaehwan Jeong   +7 more
wiley   +1 more source

Sustainable Utilization and Fire Protection of Wood‐Based Composites in Buildings: Innovations, Challenges, and Future Directions

Sustainable Development, EarlyView.
ABSTRACT The increasing use of wood and wood‐based composites in construction reflects a global shift toward renewable materials that support sustainable development objectives, including carbon reduction and responsible resource use. While wood offers substantial environmental benefits compared to conventional materials such as concrete and steel, its
Qaisar Munir, Marko Hyvärinen, Timo Kärki   +2 more
wiley   +1 more source

Moisture movement in bulk stockpiles [PDF]

, 1995
Both drainage and evaporation are possible mechanisms for moisture loss in iron-ore and coal stockpiles. Some simple models are used to study both these mechanisms for various stages of stockpiling.
Fulford, G., McElwain, S.
core  

Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review

SmartBot, EarlyView.
Small‐body sampling robots are exploration systems that perform contact, sampling, and stable operations on microgravity bodies such as asteroids and comets. The authors review representative robot architectures and key technologies, focusing on the mechanisms, evolution, and coupling of sampling, mobility, and anchoring.
Yurui Shen, Yixin Zhu, Mingxia Bao, Ting Zhang, Jun Wu, Jingbin Hao, Dezheng Hua, Xinhua Liu   +7 more
wiley   +1 more source

Study on wetting and dust suppression characteristics of composite dust suppressant based on enhancement effect of fluorocarbon surfactant

Meikuang Anquan
Fluorocarbon surfactants could change coal structure and improve wettability characteristics, thus, it plays a significant role in coal dust prevention and control.
Chunshan ZHENG, Cancan LI, Bingyou JIANG, Sheng XUE, Xiaohan WANG, Suqian QIAN   +5 more
doaj   +1 more source

Evacuation of coal from hoppers/silos with low pressure pneumatic blasting systems [PDF]

, 1977
The need for an efficient, economical, effective and quiet device for moving coal and other difficult bulk solids was recognized. Thus came the advent of the low pressure pneumatic blasting system - a very efficient means of using a small amount of plant
Fischer, J. S.
core   +1 more source

Evaluating Plasma Torches as a Low‐Decarburization Preheating Method for MgO–C Refractory Linings

steel research international, EarlyView.
This study evaluates direct current (DC) plasma torches using nitrogen as an alternative preheating method for magnesia‐carbon (MgO–C) refractory‐lined ladles. Full‐scale trials at 0.7 and 1.5 MW are compared to conventional gas burner. Plasma‐heated samples show lower decarburization and improved surface integrity due to partial sintering and reduced ...
Marcus Holmström, Alvaro Rubio Ordoñez, Roberto Caballero Carlon, Björn Glaser   +3 more
wiley   +1 more source