Results 101 to 110 of about 173,657 (302)

Photolyzable Polymer Brushes: Subtractive 3D Structuring of Surfaces Using Water and Light

Angewandte Chemie, EarlyView.
Facile structuring of polymer brushes is achieved by flipping the process from controlled growth to controlled brush photolysis. Using surface‐initiated radical ring‐opening polymerization of cyclic monomers with photocleavable cyclobutane rings, photodegradable targets are embedded into the polymer chains. The enabled continuous subtractive patterning
Henrik Kalmer, Federica Sbordone, Phuong T. Do, Kai Mundsinger, Hazal Kayas, Robert T. Jones, Jayanti Mendhi, Tim R. Dargaville, Damien G. Harkin, Lukas Michalek, Andrew Nelson, Hendrik Frisch   +11 more
wiley   +2 more sources

Numerical Study on Influence of Cross Flow on Rewetting of AHWR Fuel Bundle

The Scientific World Journal, 2014
Numerical study on AHWR fuel bundle has been carried out to assess influence of circumferential and cross flow rewetting on the conduction heat transfer.
Mithilesh Kumar, D. Mukhopadhyay, A. K. Ghosh, Ravi Kumar   +3 more
doaj   +1 more source

Model‐based fault diagnosis and fault tolerant control in safety‐critical chemical reactors: An experimental study

AIChE Journal, EarlyView.
Abstract This study investigates a fault‐tolerant control (FTC) approach for continuous stirred‐tank reactors (CSTR), emphasizing the importance of timely interventions to ensure operational safety under fault conditions. A systematic methodology combining residual‐based fault estimation and Dynamic Safety Margin (DSM) monitoring is developed to guide ...
Pu Du, Ritu Ranjan, Benjamin Wilhite, Costas Kravaris   +3 more
wiley   +1 more source

TAMING THE TECHNOLOGICAL TYGERTHE REGULATION OF THE ENVIRONMENTAL EFFECTS OF NUCLEAR POWER PLANTS -A SURVEY OF SOME CONTROVERSIAL ISSUES--PART TWO [PDF]

, 1972
This article reviews the significance placed on environmental factors in nuclear plant licensing during -the 1960s, first considering the effect of recent legislation and the status of current controversies, and then briefly discussing proposals for ...
Davis, Joyce P.
core   +1 more source

Challenges and enablers in fluidization technology

AIChE Journal, EarlyView.
Abstract Gas–solid fluidized beds provide excellent heat and mass transfer for high‐throughput operations from coating to catalytic conversion and underpin emerging low‐carbon technologies. Yet industrial reliability, scale‐up, and control lag scientific understanding, particularly as finer, stickier, and more variable feedstocks increasingly challenge
J. Ruud van Ommen, Jia Wei Chew
wiley   +1 more source

Study on the effect of high temperature on the pore structure and closed-pore gas release behavior of nuclear-grade graphite IG110

Nuclear Engineering and Technology
As one of the fourth-generation nuclear energy systems, the Very High Temperature Gas cooled Reactors (VHTRs) face significant challenges related to material corrosion and radionuclide generation caused by impurity gases in the helium coolant.
Penghui Xiao, Huang Zhang, Bin Du, Huaqiang Yin, Xuedong He, Tao Ma   +5 more
doaj   +1 more source

Experimental and Numerical Study on Pressure Distribution of 90° Elbow for Flow Measurement

Science and Technology of Nuclear Installations, 2014
Numerical simulation is performed to investigate the pressure distribution of helium gas under high pressure and high temperature for 10 MW High Temperature Gas-Cooled Reactor (HTGR-10).
Beibei Feng, Shiming Wang, Shengqiang Li, Xingtuan Yang, Shengyao Jiang   +4 more
doaj   +1 more source

Focused technology: Nuclear propulsion [PDF]

The topics presented are covered in viewgraph form and include: nuclear thermal propulsion (NTP), which challenges (1) high temperature fuel and materials, (2) hot hydrogen environment, (3) test facilities, (4) safety, (5) environmental impact compliance,
Miller, Thomas J.
core   +1 more source

Asking the 5 W's for designing next‐generation bioprocessing

AIChE Journal, EarlyView.
Abstract Biotechnology is expanding beyond traditional, centralized fermentation and toward next‐generation bioprocessing paradigms that emphasize flexible deployment outside the laboratory with application‐specific performance. However, many bioprocesses fail to translate beyond proof‐of‐concept into industrially viable systems because early design ...
Sangdo Yook, Karoline Maria Vieira Nogueira, Raj Sukumar, Jenna Miller, Hal S. Alper   +4 more
wiley   +1 more source

Nuclear radiation problems, unmanned thermionic reactor ion propulsion spacecraft [PDF]

, 1972
A nuclear thermionic reactor as the electric power source for an electric propulsion spacecraft introduces a nuclear radiation environment that affects the spacecraft configuration, the use and location of electrical insulators and the science ...
Mondt, J. F., Nakashima, A., Sawyer, C. D.   +2 more
core   +1 more source