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Journal of Energy Chemistry 2025年第1期100卷 621-627页

作者： Fei Lv Longjie Liu Jiazhe Wu Pengfei Wang Lixia Pan Dengwei Jing Yubin Chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Combining water electrolysis and rechargeable battery technologies into a single system holds great promise for the co-production of hydrogen （H2） and ***,the design and development of such systems is still in its ***,an integrated hydrogen-oxygen （O2）-electricity co-production system featuring a bipolar membrane-assisted decoupled electrolyzer and a Na-Zn ion battery was established with sodium nickelhexacyanoferrate （NaNiHCF） and Zn2+/Zn as dual redox *** decoupled electrolyzer enables to produce H2and O2in different time and space with almost 100%Faradaic efficiency at 100 mA ***,the charged NaNiHCF and Zn electrodes after the electrolysis processes formed a Na-Zn ion battery,which can generate electricity with an average cell voltage of 1.75 V at 10 m A *** connecting Si photovoltaics with the modular electrochemical device,a well-matched solar driven system was built to convert the intermittent solar energy into hydrogen and electric energy with a solar to hydrogen-electricity efficiency of 16.7%,demonstrating the flexible storage and conversion of renewables.

关键词： Hydrogen Electricity Decoupled water electrolyzer Na-Zn ion battery Solar energy

Blood biomarkers of Alzheimer’s disease:important considerations for use in clinical practice

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Neural Regeneration Research 2025年第1期20卷 205-206页

作者： Sarah Fullam Sean O’Dowd Antoinette O’Connor Department of Neurology Tallaght University HospitalDublinIreland Academic unit of Neurology Trinity College DublinIreland

Introduction:Fluid and positron emission tomography(PET)biomarkers that enable the detection of the hallmark proteins of Alzheimer’s disease(AD)(amyloid and tau)have revolutionized our approach to the diagnosis of *** evolution of AD diagnostic criteria to include biological characterization(Alzheimer’s Association Working Group,2023)provides an appropriate framework to reduce levels of clinico-pathologic mismatch and improve in-vivo diagnostic *** the therapeutic landscape for neurodegenerative disease evolves,it is increasingly incumbent on clinicians to provide timely,and pathologically precise diagnoses for ***,the expensive and invasive nature of these tests limits their scalability.

关键词： Blood Alzheimer diagnosis

flow Control Effect on Unsteadiness of Shock Wave Induced Separation

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Journal of Thermal Science 2013年第6期22卷 511-516页

作者： Piotr Doerffer Janusz Telega Institute of Fluid flow Machinery Polish Academy of Sciences

In usual cases of significant pressure gradients and strong shocks, the front shock takes a fixed location along the wall, at which separation starts. Usually the rear shock is responding to vortex sheding by its deflection angle. In consequence main shock and rear shocks are moving whilst front shock is stable. The goal of the measurements presented here is to find out how the k-foot behaves during shock oscillations in the case when front shock is not fixed by the pressure gradient. Unsteady shock behaviour is also investigated when air jet vortex generators （AJVG） are used. Counteraction of the separation is directly related to the influence on unsteady processes in the shock wave induced separation.

关键词： shock wave boundary layer interaction unsteady effects separation

Dynamic Modelling of the DEP Controlled Boiling in a Microchannel

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Journal of Thermal Science 2018年第2期27卷 167-174页

作者： Marcin Lackowski Roman Kwidzinski Institute of Fluid flow Machinery Polish Academy of Sciences

The paper presents theoretical analysis of flow dynamics in a heated microchannel in which flow rate may be controlled by dielectrophoretic(DEP) forces. Proposed model equations were derived in terms of lumped parameters characterising the system comprising of DEP controller and the microchannel. In result, an equation for liquid height of rise in the controller was obtained from momentum balances in the two elements of the considered system. In the model, the boiling process in the heated section of microchannel is taken into account through a pressure drop, which is a function of flow rate and uniform heat flux. Presented calculation results show that the DEP forces influence mainly the flow rate in the microchannel. In this way, by proper modulation of voltage applied to the DEP controller, it is possible to lower the frequency of Ledinegg instabilities.

关键词： dielectrophoresis boiling microchannel two-phase flow pressure drop

Prediction of Thermal Behavior of Pyrolyzed Wet Biomass by Means of Model with Inner Wood Structure

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Journal of Thermal Science 2015年第1期24卷 82-89页

作者： Sylwia Polesek-Karczewska Dariusz Kardas Institute of Fluid flow Machinery of Polish Academy of Sciences

A simplified one-dimensional transient model for biomass pyrolysis in a fixed bed cylindrical reactor has been formulated and experiments have been carded out to verify the calculation results regarding temperature distribu- tion. The mathematical model accounts for mass, momentum and heat transfer, including moisture evaporation and convection of pyrolysis gases. Numerical simulation has allowed to predict temperature and heat flux distri- bution, and the dynamics of feedstock devolatilization. Special attention has been devoted to the analysis of the effect of biomass moisture content on the pyrolysis process. The model of moisture vaporization in biomass bed was proposed, which included structure of surface of biomass particles. Assuming that vaporization occurs on the border of the dry and wet areas of the bed, the flux of water vaporization depends on the specific surface area of the particles and overall heat flux.

关键词： Pyrolysis Fixed Bed Evaporation Mass Source

Measurements of Water-Air flow Phenomena in a Chamber with a Rotating Shaft

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Journal of Thermal Science 2021年第1期30卷 242-247页

作者： TIUTIURSKI Paweł HERCEL Paulina TELEGA Janusz KARDAŚDariusz flow and Combustion Department Renewable Energy FacultyInstitute of Fluid Flow Machinery Polish Academy of SciencesFiszera 1480-231GdańskPoland flow and Combustion Department Experimental Aerodynamics FacultyInstitute of Fluid Flow Machinery Polish Academy of SciencesFiszera 1480-231GdańskPoland

The paper concerns the phenomena of the fluid film that occurs in the bearing chamber of an aircraft *** geometry of the system includes two concentric cylinders,between which there is a mixture of oil and *** fluid circulates in a closed *** rotary movement of the inner cylinder causes creation of the fluid film on the walls of the *** article proposes a measurement method that is allowing observation of this fluid film and,in particular,analysis of the movement of the air bubbles occurring in the *** own model of the bearing chamber with transparent walls was constructed for the *** the investigation,water was used instead of *** of the behaviour of the flow was possible thanks to video recordings made with the use of a fast-capture *** results presented in the paper include velocity magnitudes of the air bubbles in the fluid film in dependence on the rotational speed of the shaft and water volume fraction and with a range from 0.37 to 0.91 m/*** results presented in this article can be used for the bearing chamber numerical models validation.

关键词： bearing chamber measurements fluid film velocity two-phase flow

flow Structure and Heat Exchange Analysis in Internal Cooling Channel of Gas Turbine Blade

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Journal of Thermal Science 2016年第4期25卷 336-341页

作者： Ryszard Szwaba Piotr Kaczynski Piotr Doerffer Janusz Telega Institute of Fluid-flow Machinery Polish Academy of Sciences(IMP PAN)

This paper presents the study of the flow structure and heat transfer,and also their correlations on the four walls of a radial cooling passage model of a gas turbine *** investigations focus on heat transfer and aerodynamic measurements in the channel,which is an accurate representation of the configuration used in *** for the heat transfer coefficient and the pressure drop used in the design of radial cooling passages are often developed from simplified *** is important to note that real engine passages do not have perfect rectangular cross sections,but include coiner fillet,ribs with fillet radii and special ***,this work provides detailed fluid flow and heat transfer data for a model of radial cooling geometry which possesses very realistic features.

关键词： cooling internal blade channels heat exchange transient liquid crystal method

Full Wavefield Analysis for Damage Assessment in Composite Materials

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Transactions of Nanjing University of Aeronautics and Astronautics 2018年第2期35卷 264-274页

作者： Tomasz Wandowski Pawel Malinowski Wieslaw Ostachowicz Institute of Fluid flow Machinery Polish Academy of Sciences

In this paper damage assessment based on guided elastic wave propagation phenomenon is *** waves are generated by piezoelectric transducer and registered by scanning laser doppler vibrometer(SLDV).Signal processing is based on the analysis of full wavefield measurements gathered from dense mesh of measurement points spanned over area of investigated *** wavefield measurement approach allows creation of animations presenting the guided wave propagation in the *** such approach is suitable for analysis of interaction of guided waves with discontinuities located in *** the research attention is paid especially on analysis of phenomenon of S0/A0′guided wave mode conversion due to interaction with investigated discontinuities-teflon inserts and impact *** presented work is related to glass fibre reinforced polymer(GFRP)*** the research,auxiliary non-destructive testing(NDT)method is also *** aim of this method is to indicate the depth of discontinuity,and to prove that delamination was created in the case of impact *** method is based on terahertz spectroscopy(THz)where the analysis of propagation of electromagnetic waves in the terahertz band is *** spectroscopy method can be utilized for damage assessment in the dielectric materials like GFRP.

关键词： damage assessment guided wave propagation (GW) mode conversion terahertz spectroscopy(THz)

Modeling of fluid dynamics interacting with ductile fraction propagation in high pressure pipeline

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Acta Mechanica Sinica 2009年第3期25卷 311-318页

作者： Mihaela Popescu Department of Process Technology Flow Technology GroupSINTEF Materials and Chemistry

This paper presents a computational model for the fluid dynamics in a fractured ductile pipe under high pressure. The pressure profile in front of the crack tip, which is the driving source of crack propagation, is computed using a nonlinear wave equation. The solution is coupled with a one dimensional choked flow analysis behind the crack. The simulation utilizes a high order optimized prefactored compact-finite volume method in space, and low dispersion and dissipation Runge-Kutta in time. As the pipe fractures the rapid depressurization take place inside the pipe and the propagation of the crack-induced waves strongly influences the outflow dynamics. Consistent with the experimental observation, the model predicts the expansion wave inside the pipe, and the reflection and outflow of the wave. The model also helps characterize the propagation of the crack dynamics and fluid flows around the tip of the crack.

关键词： Fluid dynamics High pressure pipeline -Ductile fracture propagation - Finite volume method

Effect of Thermal Treatment on CFRP Parts Before and After Adhesive Bonding

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Transactions of Nanjing University of Aeronautics and Astronautics 2018年第2期35卷 256-263页

作者： Pawe H Malinowski Mirosaw Sawczak Tomasz Wandowski Wiesaw M Ostachowicz Institute of Fluid flow Machinery Polish Academy of Sciences

Numerous non-destructive techniques are being investigated for assuring quality of the adhesive *** research presented here is focused on non-destructive assessment of carbon fibre reinforced polymer(CFRP)*** surface condition directly influences the performance of adhesive *** structural joints should ensure safe usage of a ***,some modifications of the surface may lead to weak bond that cannot carry the desired *** is why there is a search for methods of surface assessment before ***,reliable techniques are required to allow to verify the integrity of the adhesive bond after manufacturing or bonded *** focus on the laser induced fluorescence(LIF)method for assessing the surface *** LIF is a noncontact measurement *** the context of adhesive bond assessment the electromechanical impedance(EMI)method is *** EMI uses surface bonded piezoelectric sensors for excitation and *** investigated samples were made of CFRP *** samples were treated at elevated *** influence of the thermal treatment was studied using *** thermal treatment at 220℃could be clearly distinguishedrom the rest of the considered *** thermally treated plates were bonded to untreated plate and then they were measured with the EMI method to study the influence of the treatment on the adhesive *** changes of EMI spectra were significant for the treatment at 280 ℃ and for some thermally treated samples that were later contaminated with de-icing fluid.

关键词： adhesive joints carbon fibre reinforced polymer (FRP) composite laminates composite materials andrepairs composites electromechanical impedance non-destructive testing (NDT)