High-Performance Biomimetic Water Channel: The Constructive Interplay of Interaction Parameters and Hydrophilic Doping Levels

2021 ◽  
Author(s):  
Mina Ebrahimi ◽  
Masumeh Foroutan
Keyword(s):  
High Performance ◽  
Water Channel ◽  
Interaction Parameters

Aerodynamics of High-Performance Wing Sails

1974 ◽  
Vol 11 (03) ◽  
pp. 270-276
Author(s):  
J. Otto Scherer
Keyword(s):  
High Performance ◽  
Water Channel ◽  
Test Results

Some of the primary requirements for the design of wing sails are discussed. In particular, the requirements for maximizing thrust when sailing to windward and tacking downwind are presented. The results of water channel tests on six sail section shapes are also presented. These test results include the data for the double-slotted flapped wing sail designed by David Hubbard for A. F. Di Mauro's IYRU "C" class catamaran Patient Lady II.

Measurement of photon interaction parameters of high-performance polymers and their composites

2018 ◽  
Vol 173 (5-6) ◽  
pp. 474-488 ◽  
Author(s):  
M. Büyükyıldız ◽  
M. A. Taşdelen ◽  
Y. Karabul ◽  
M. Çağlar ◽  
O. İçelli ◽  
...  
Keyword(s):  
High Performance ◽  
Interaction Parameters ◽  
Photon Interaction ◽  
High Performance Polymers

A TomoPIV Flow Field Study of NACA 63-215 Hydrofoil With CFD Comparison

2019 ◽  
Author(s):  
Mohammadamin Sheikhshahrokhdehkordi ◽  
Navid Goudarzi ◽  
Farhad Saffaraval ◽  
Seyedmohammad Mousavi sani ◽  
Peter Tkacik
Keyword(s):  
Flow Field ◽  
High Performance ◽  
Performance Metrics ◽  
Water Channel ◽  
Cost Effective ◽  
Streamwise Velocity ◽  
Ocean Current ◽  
Research Areas ◽  
The Difference ◽  
Lift And Drag

Abstract This paper investigates the unsteady flow field around the NACA 63-215 hydrofoil. Computational fluid dynamics (CFD) study is followed by tomographic particle image velocimetry (TomoPIV) experiments in a closed-loop water channel at Reynolds number of approximately 2.9 × 104. The k-ω SST turbulence model results, namely the performance metrics such as lift and drag coefficients, are within 2% of the published values in the literature. There is also a good agreement between the numerical and experimental flow filed characteristics (i.e. average total velocity) around the studied NACA 63-215 hydrofoil; a maximum difference of 2% is observed. The difference in the results is mainly from the implemented boundary condition constraints in the CFD model. Longitudinal variations of streamwise velocity (i.e. u component) deficit from CFD are within 5% of the experimental values. In contrast with 2D measurements, the TomoPIV captures the 3D phenomena such as out of the plane velocity gradients. The results from this work supports both fundamental and applied research areas such as studying the development of high-performance and cost-effective ocean current turbine array models.

High-performance polyamide membrane with tailored water channel prepared via bionic neural networks for textile wastewater treatment

2019 ◽  
Vol 7 (12) ◽  
pp. 6695-6707 ◽  
Author(s):  
Chao Liu ◽  
Chao Wang ◽  
Yongqiang Guo ◽  
Jiaming Zhang ◽  
Yingying Cao ◽  
...  
Keyword(s):  
Neural Networks ◽  
Wastewater Treatment ◽  
High Performance ◽  
Interfacial Polymerization ◽  
Water Channel ◽  
Aromatic Polyamide ◽  
Textile Wastewater ◽  
Skin Surface ◽  
Polyamide Membrane ◽  
Textile Wastewater Treatment

A novel aromatic polyamide (PA) reverse osmosis membrane with nanoscale water channels and hydrophilic molecular skin surface, similar to those of biomimetic neural networks, was realized for textile wastewater treatment via the facile strategy of interfacial polymerization with the addition of free radicals.

scholarly journals Investigating the Mechanisms of AquaporinZ Reconstitution through Polymeric Vesicle Composition for a Biomimetic Membrane

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1944
Author(s):  
Danhua Zhou ◽  
Hu Zhou ◽  
Shufeng Zhou ◽  
Yen Wah Tong
Keyword(s):  
Block Copolymers ◽  
High Performance ◽  
Water Channel ◽  
Bilayer Membrane ◽  
Amphiphilic Block Copolymers ◽  
Biomimetic Membranes ◽  
Polymeric Vesicles ◽  
Membrane Rigidity ◽  
Relationship Of ◽  
Protein Reconstitution

Aquaporin-Z (AqpZ) are water channel proteins with excellent water permeability and solute rejection properties. AqpZ can be reconstituted into vesicles utilizing cell-like bilayer membranes assembled from amphiphilic block copolymers, for the preparation of high-performance biomimetic membranes. However, only a few copolymers have been found suitable to act as the membrane matrix for protein reconstitution. Hence, this work analyzes the mechanism of protein reconstitution based on a composition-reconstitution relationship. The vesicle formation and AqpZ reconstitution processes in various amphiphilic block copolymers were investigated in terms of size, morphology, stability, polymeric bilayer membrane rigidity, and thermal behavior. Overall, this study contributes to the understanding of the composition-reconstitution relationship of biomimetic membranes based on AqpZ-reconstituted polymeric vesicles.

Concept of a Small Modular SCWR with Horizontal Fuel Assemblies

2021 ◽  
Author(s):  
Thomas Schulenberg ◽  
Ivan Otic
Keyword(s):  
High Performance ◽  
Single Channel ◽  
Water Channel ◽  
Heat Removal ◽  
Pressure Losses ◽  
The Core ◽  
Small Modular Reactor ◽  
Single Channel Analysis ◽  
Fuel Assemblies ◽  
Channel Analysis

Abstract Based on the concept of the High Performance Light Water Reactor (HPLWR), an innovative concept of a small modular reactor is presented, which shall have smaller peak cladding temperatures than the HPLWR due to better coolant mixing, and which shall enable a passive residual heat removal by natural convection. The core is designed with horizontal fuel assemblies of 40 fuel rods each, including an internal water channel to improve moderation. Supercritical water is heated up in seven steps, when running through these assemblies, and the reflector around the core is used as mixing channels. A single channel analysis, considering an average fuel assembly and a hot channel, provides a first estimate of pressure losses, coolant and peak cladding temperatures. More design optimization and analyses will be needed, however, to assess the feasibility of such a concept.

Aerodynamics of High Performance Wing Sails

1974 ◽  
Author(s):  
Otto Scherer
Keyword(s):  
High Performance ◽  
Water Channel ◽  
Test Results

Some of the primary requirements for the design of wing sails are discussed. In particular, the requirements for maximizing thrust when sailing to windward and tacking down wind are presented. The results of water channel tests on six sail section shapes are also presented. These test results include the data for the double slotted flapped wing sail designed by Mr. David Hubbard for Mr. A. F. Di Mauro's IYRU "c" class catamaran PATIENT LADY II.

scholarly journals Flow Testing and Analysis of the FSP-1 Experiment

2017 ◽  
Author(s):  
Grant L. Hawkes ◽  
Warren F. Jones ◽  
Wade Marcum ◽  
Aaron Weiss ◽  
Trevor Howard
Keyword(s):  
Flow Rate ◽  
High Performance ◽  
National Laboratory ◽  
Water Channel ◽  
Flow Characteristics ◽  
Separate Branch ◽  
Flow Test ◽  
Enriched Uranium ◽  
Test Reactor ◽  
Fuel Meat

The U.S. High Performance Research Reactor conversions fuel development team is focused on developing and qualifying the uranium-molybdenum (U-Mo) alloy monolithic fuel to support conversion of domestic research reactors to low enriched uranium. Several previous irradiations have demonstrated the favorable behavior of the monolithic fuel. The Full Size Plate 1 (FSP-1) fuel plate experiment will be irradiated in the northeast (NE) flux trap of the Advanced Test Reactor (ATR). This fueled experiment contains six aluminum-clad fuel plates consisting of monolithic U-Mo fuel meat. Flow testing experimentation and hydraulic analysis have been performed on the FSP-1 experiment to be irradiated in the ATR at the Idaho National Laboratory (INL). A flow test experiment mockup of the FSP-1 experiment was completed at Oregon State University. Results of several flow test experiments are compared with analyses. This paper reports and shows hydraulic analyses are nearly identical to the flow test results. A water channel velocity of 14.0 meters per second is targeted between the fuel plates. Comparisons between FSP-1 measurements and this target will be discussed. This flow rate dominates the flow characteristics of the experiment and model. Separate branch flows have minimal effect on the overall experiment. A square flow orifice was placed to control the flowrate through the experiment. Four different orifices were tested. A pressure differential versus flow rate curve for each orifice is reported herein. Fuel plates with depleted uranium in the fuel meat zone were used in one of the flow tests. This test was performed to evaluate flow test vibration with actual fuel meat densities and reported.

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

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