Privacy-Preserving Breast Cancer Prediction Based on Logistic Regression
Computer journal, May 15, 2024
A three-probe method for accurate nanoscale thermal transport measurements
Applied physics letters, Apr 29, 2024
Flexible nanohybrid substrates utilizing gold nanocubes/nano mica platelets with 3D lightning-rod effect for highly efficient bacterial biosensors based on surface-enhanced Raman scattering
Journal of materials chemistry. B, 2024
Photocurable 3D-printed AgNPs/Graphene/Polymer nanocomposites with high flexibility and stretchability for ECG and EMG smart clothing
Chemical engineering journal, Mar 1, 2024
Facile Fabrication and Analysis of Highly Sensitive PtTFPP/Carbon Black/Polystyrene Oxygen-Sensitive Composite Films for Optical Dissolved-Oxygen Sensor
ACS applied electronic materials, Feb 7, 2024
Droplets Impacting on Superheated Surfaces with Asymmetric Re-Entrant Microgrooves
Journal of Orthopaedic Surgery and Research, Jan 5, 2024
Background The purpose of this study was to investigate the influence of different residual menis... more Background The purpose of this study was to investigate the influence of different residual meniscus volume on the biomechanics of tibiofemoral joint after discoid lateral meniscus (DLM) surgery by finite element analysis. Methods A knee joint model was established based on CT and MRI imaging data. The DLM model was divided into five regions according to conventional meniscectomy, with volumes of 15%, 15%, 15%, 15%, 15%, and 40% for each region. Additionally, the DLM model was divided into anterior and posterior parts to obtain ten regions. The DLM was resected according to the design scheme, and together with the intact discoid meniscus, a total of 15 models were obtained. Finite element analysis was conducted to assess shear and pressure trends on the knee joint. The study observed significant changes in peak shear stress and compressive stress in the lateral meniscus and lateral femur cartilage. As the meniscus volume decreased, there was an increase in these stresses. Specifically, when the meniscus volume reduced to 40%, there was a sharp increase in shear stress (302%) and compressive stress (152%) on the meniscus, as well as shear stress (195%) and compressive stress (157%) on the lateral femur cartilage. Furthermore, the model grouping results showed that preserving a higher frontal volume in the meniscus model provided better biomechanical advantages. The use of finite element analysis has demonstrated that preserving more than 55% of the meniscus volume is necessary to prevent a significant increase in joint stress, which can potentially lead to joint degeneration. Additionally, it is crucial to preserve the front volume of the DLM in order to achieve improved knee biomechanical outcomes.
The residual volume of the discoid lateral meniscus (DLM) after surgery can vary due to various f... more The residual volume of the discoid lateral meniscus (DLM) after surgery can vary due to various factors, and the impact of residual volume on the biomechanics of the tibiofemoral joint has been scarcely studied. This study aimed to investigate the differences in the biomechanics of the tibiofemoral joint caused by varying volumes of residual meniscus using nite element analysis. A knee joint model was established based on CT and MRI imaging data. The DLM model was divided into ve regions according to conventional meniscectomy, with volumes of 15%, 15%, 15%, 15%, 15%, and 40% for each region. Additionally, the DLM model was divided into anterior and posterior parts to obtain ten regions. The DLM was resected according to the design scheme, and together with the intact discoid meniscus, a total of 15 models were obtained. Finite element analysis was conducted to assess shear and pressure trends on the knee joint. The decrease in meniscus volume from 100-40% resulted in a gradual increase in peak compressive and shear stresses in the lateral femoral cartilage and lateral meniscus, with a signi cant increase at 40%. Moreover, when considering the differences in anterior and posterior volumes, meniscus models with greater preservation of the anterior volume exhibited better biomechanical advantages. Finite element analysis suggests that preserving 85-55% of the meniscus volume should be attempted during DLM surgery. Additionally, preserving the anterior volume of the DLM is crucial for achieving better biomechanical outcomes in the knee.
Enhanced boiling heat transfer on three-dimensional hybrid micropillar array surfaces
International Journal of Heat and Mass Transfer, Feb 29, 2024
Review and Prospect: Applications of Exponential Signals with Machine Learning in Nuclear Magnetic Resonance
Spectroscopy, Aug 31, 2023
冷媒R-134a與HFO-1234yf在平滑管內之流動沸騰熱流分析與比較
The characteristics of convection boiling heat transfer coefficients and two-phase flow pressure ... more The characteristics of convection boiling heat transfer coefficients and two-phase flow pressure drops were measured for R-134a and HFO-1234yf flowing in smooth tube with inner diameter of 3.9 mm. The range of mass flux is between 200 to 500 kg/m2s, heat flux ranging from 5.67 to 26.18 kW/m2, evaporating temperature ranging from 6℃ to 15℃. Results showed that, the heat transfer coefficients of R-134a and HFO-1234yf increase with mass flux, heat flux and saturation temperature. The effect of heat flux on the heat transfer was large at low vapor quality, the effect of mass flux on the heat transfer was large at high vapor quality, and the heat transfer coefficient of HFO-1234yf is almost same as that of R-134a. For the pressure drops, under the same experimental conditions, the pressure drops of R-134a are higher than that of HFO-1234yf. Between experimental data and correlations proposed for the heat transfer coefficients, Wattlet and Chato’s correlation can predict data in smooth tube within 50%. For the pressure drops, Friedel’s correlation can predict the data within 30%.
Research on Laboratory Evaluation of Coalbed Methane Reservoir Water Blocking Damage Removal in Hancheng Block
IOP conference series, Sep 5, 2020
Owing to factors such as production system change, pump shutdown and workover, there was sudden d... more Owing to factors such as production system change, pump shutdown and workover, there was sudden drop in formation fluid velocity of coalbed methane well in Hancheng block, resulting in water blocking damage, the gas production plunged after the well was reopened. In order to remove the water blocking damage of coalbed methane reservoir, this paper integrated extensive survey, initially selected two nonionic surfactants (B4-B5) and three anionic surfactants (B1-B3) as the experimental subjects. The results showed that the mixed effect of B3 and B5 is the best. In order to further improve the formula system, the experimental study on the selection of auxiliaries was conducted, the results showed that under the premise of meeting environmental protection, ethanol could play a good role in reducing surface tension and defoaming, and the effect was best when the addition amount was 3%. The formula of coal seam water blocking agent PT was determined through the laboratory water-blocking evaluation experiment, and laid the foundation for the subsequent field test.
Effect of the inlet location on the performance of parallel-channel cold-plate
IEEE Transactions on Components and Packaging Technologies, Mar 1, 2006
ABSTRACT This study numerically examines the influence of inlet locations on the performance of t... more ABSTRACT This study numerically examines the influence of inlet locations on the performance of the Multichannel cold-plates. A total of five inlet configurations (namely I-, Z-, ]-, L-, and Γ-arrangement) are investigated in this study. The velocity maldistribution and nonuniformity of temperature field caused by the fluid flow are shown in the simulation. For I-arrangement, higher inlet flow rate of the cold-plate shows more considerable maldistribution, and this maldistribution is decreased when the number of channels of the cold-plate is increased. The Z-arrangement and L-arrangements show a pronounced flow-recirculation that eventually leads to a much larger temperature difference along the surface of the cold-plate. Conversely, there is no flow recirculation in the ]-arrangement and a comparatively uniform flow distribution is seen. For the same average inlet velocity, I-arrangement has the highest pressure drop whereas ]-arrangement shows the lowest pressure drop. The I- and Γ-arrangement give the best heat transfer performance due to their impingement configurations whereas the Z-arrangement shows the lowest heat transfer performance for its dramatic flow recirculation and maldistribution.
structures are often employed to achieve superhydrophobicity. In condensation, utilizing such a s... more structures are often employed to achieve superhydrophobicity. In condensation, utilizing such a surface is not necessarily advantageous because the macroscopically observed Cassie droplets are usually in fact partial Wenzel in condensation. The increase in contact angle through introducing microstructures on such two-tier roughened surfaces may result in an increase in droplet departure diameter and consequently deteriorate the performance. In the meantime, nanostructure roughened surfaces could potentially yield efficient shedding of liquid droplets, whereas microstructures roughened surfaces often lead to highly pinned Wenzel droplets. To attain efficient shedding of liquid droplets in condensation on a superhydrophobic surface, a Bond number (a dimensionless number for appraising dropwise condensation) and a solid-liquid fraction smaller than 0.1 and 0.3, respectively, are suggested.
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Papers by Ming-Chang Lu