A5084299457- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Advanced Measurement and Detection Methods
- Heat Transfer Mechanisms
- Medical Imaging Techniques and Applications
- Advanced optical system design
- Optical Systems and Laser Technology
- Earthquake Detection and Analysis
- Optimization and Packing Problems
- Nanofluid Flow and Heat Transfer
- Infrared Target Detection Methodologies
- Optical Coatings and Gratings
- Hydrocarbon exploration and reservoir analysis
- Fusion materials and technologies
- Spectroscopy Techniques in Biomedical and Chemical Research
- Fluid Dynamics and Turbulent Flows
- Solar Thermal and Photovoltaic Systems
- Magnetic confinement fusion research
- Atomic and Subatomic Physics Research
- Ergonomics and Musculoskeletal Disorders
- Luminescence Properties of Advanced Materials
- NMR spectroscopy and applications
- Heat Transfer and Boiling Studies
- Advanced Optical Sensing Technologies
- Advancements in Photolithography Techniques
Beijing University of Technology
2024
Thermal enhancement of engine oil plays an important role in a variety industrial applications including heat exchangers, automotive cooling systems, renewable energy biomedical devices, and advanced manufacturing processes. Considering the high demand industry, present investigation explores thermal optimization contained porous inclined cavity involving dispersion hybrid nanoparticles along with inclusion micropolar fluid flow phenomena. Numerical analysis is performed on nanofluid...
The current analysis is carried out to study the laminar convective heat transfer characteristics that change with time in co-axial pipes along impact of radiation and variable surface temperature. flow assumed axial direction pipe, boundary condition at pipe due A two-dimensional mathematical model made up non-linear partial differential equations solved using implicit finite difference method. project involves predicting thermal efficiency a pipe's dependent across number model-relevant...
针对45 nm节点投影光刻物镜的应用, 开展了工作波长为193 nm的深紫外浸没式高数值孔径(NA)投影光刻物镜的研究和研制。设计了数值孔径(NA)为1.30的离轴三反射镜投影光刻物镜和NA为1.35的同轴两反射镜投影光刻物镜, 并对两个设计方案的优劣进行对比分析, 选择了同轴式结构作为最终的设计方案。分析了系统在不同NA情况下可变光阑与其远心度之间的关系, 提出了用双可变曲面光阑的设计方案来优化系统的远心度。实验表明, 应用本文设计方案, 光刻物镜的波像差小于1 nm, 畸变小于1 nm; 新型的可变光阑使系统NA在0.85~1.35变化时的最大远心度由5.83~17.57 mrad降低至0.26~3.21 mrad。本文提出的设计方案为45 nm节点高数值孔径投影光刻物镜的研制提供了有益的理论依据和指导。
Technology index of the optical imaging system was designed for purpose accelerator deuterium ion beam profile measurement. ZEMAX used to design and simulate system. The standard white light source line pair board were check result. It shown from result that this had good image quality. Distortion lower than 0.05%. MTFs center field edge higher 0.7 with an resolution 30 lp/mm. experiment in measurement showed diagnostic method based on scintillator screen feasible.
To address the problems that probe easy wears,the scanning speed is slow and scalability poor during contact measurement for precision process,a fin shape system developed based on virtual instrument laser triangulation.The principle of dimensions analyzed.The hardware architecture,software architecture,data acquisition,filtering algorithms other key technologies test systemare studied.The specific radius evaluation method given.