Vertical Takeoff and Landing (VTOL) aircraft are designed to take off, hover, and land vertically. they require significant amount of thrust specially during takeoff and landing phases to counteract the force of gravi...
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ISBN:
(纸本)9783031751691;9783031751707
Vertical Takeoff and Landing (VTOL) aircraft are designed to take off, hover, and land vertically. they require significant amount of thrust specially during takeoff and landing phases to counteract the force of gravity. the ability to generate high thrust is a critical aspect of VTOL design. To generate the necessary thrust, VTOL aircraft require specialized propulsion systems such as ducted propellers. However, most of these aircraft continue to use general-purpose propulsion systemsthat leads to loss of thrust and efficiency. In this paper we discuss how we were able to achieve much higher thrust and efficiency gains by using electric ducted propellers. We will study the design considerations we made to make our propellers more efficient. Mechanical designs of the ducted propeller, the rotor, and other components are explained along with dimensions. the electrical subsystem including power, motor, controllers are also covered. We will also discuss the experimental setup we used to perform the tests. Experimental results were obtained and compared for our ducted propeller and general-purpose un-ducted propellers. Simulations were carried out using the CAD model of the propellers and results were compared with experimental data. We also present performance characteristics of our propellers under various mechanical and electrical conditions.
the proceedings contain 265 papers. the topics discussed include: the realization of outsourcing research journal's intelligent online submission system;the research of combined operating mode of real estate for a...
ISBN:
(纸本)9781479942619
the proceedings contain 265 papers. the topics discussed include: the realization of outsourcing research journal's intelligent online submission system;the research of combined operating mode of real estate for aged people based on the theory of BIM;the research of output and authentication methods of digital bills based on the fusion of identity information;the research of the engineering cost management based on the experimental simulation;the structure optimization of the siphonic bedpan's flow channel based on the numerical simulation technology;the study of embedded multifunctional downhole test system;the third-party applications development based on social network open platform;the water exchange numerical simulation in the tielu harbor haitang' bay sanya;and three-dimensional dynamic model of complex subgrade under traffic moving load.
Serverless computing breaks down applications into workflows of stateless functions, where the output of each function serves as the input for the next. When these workflows are distributed across multiple processing ...
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this research study introduces cutting-edge assistive technology that provides precise distance calculation and real-time object identification to enable people with vision impairments. Withthe help of the MobileNetV...
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Dental implants are a well-accepted form of prosthetic alternative for missing teeth. Owing to their demand, over 220 manufacturers have entered the market and produced a variety of implants with different make and sh...
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the proceedings contain 20 papers. the special focus in this conference is on Context-Aware systems and applications. the topics include: Modelling and reasoning about context-aware agents over heterogeneous knowledge...
ISBN:
(纸本)9783319563565
the proceedings contain 20 papers. the special focus in this conference is on Context-Aware systems and applications. the topics include: Modelling and reasoning about context-aware agents over heterogeneous knowledge sources;context-based project management;organisational knowledge sharing using social networking sites;context adaptive business networks;context-aware hand pose classifying algorithm based on combination of Viola-Jones method, wavelet transform, PCA and neural networks;a load balancing game approach for VM provision cloud computing based on ant colony optimization;optimizing the algorithm localization mobile robot using triangulation map;enhanced human activity recognition on Smartphone by using linear discrimination analysis recursive feature elimination algorithm;LCD-based on probability in content centric networking;multivariate cube for representing multivariable data in visual analytics;an approach to analyzing execution preservation in java program refactoring;a new method to analyze graphical user interfaces of android applications;an efficient method for time series join on subsequence correlation using longest common substring algorithm;an ORM based context model for context-aware computing;a conceptual framework for is project success;notes on recognizing echinocyte by the top-hat transform;personalized email user action prediction based on spamassassin;enhance performance of action evaluation functions with stochastic optimization algorithms and a method for mobility management in cellular networks using data mining.
Wireless Sensor Networks (WSNs) face significant challenges in terms of energy conservation, scalability, and data throughput owing to their limited node energy resources. this paper presents a low-energy data-centric...
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the proceedings contain 47 papers. the topics discussed include: fuzzy estimation of link travel time from a digital elevation model and road hierarchy level;optimizing sample patches selection of CNN to improve the m...
ISBN:
(纸本)9789897583711
the proceedings contain 47 papers. the topics discussed include: fuzzy estimation of link travel time from a digital elevation model and road hierarchy level;optimizing sample patches selection of CNN to improve the mIOU on landslide detection;2D-STR: reducing spatio-temporal traffic datasets by partitioning and modeling;deriving spelling variants from user queries to improve geocoding accuracy;a method of terrain crack removal suited for large differences in boundary LoD;georeferencing of road infrastructure from photographs using computer vision and deep learning for road safety applications;accuracy assessment of a photogrammetric UAV block by using different software and adopting diverse processing strategies;and reaction-diffusion model describing the morphogenesis of urban systems in the US.
Image processing has become one of the popular neuromorphic computingapplications in recent years. Most of the application areas require an efficient and realtime image processing system. Memristor is a useful memor...
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ISBN:
(数字)9798331501488
ISBN:
(纸本)9798331501495
Image processing has become one of the popular neuromorphic computingapplications in recent years. Most of the application areas require an efficient and realtime image processing system. Memristor is a useful memory device which plays an important role to design an image processing system and realization of hardware design. Due to the non-volatile nature of memory and less power consumption, Memristor has a huge application in the field of image processing. Being a memory device, Memristor can preserve data and parameters during processing time and reducing the need for data transfer as well as storage. In this research, Memristor in the form of CNN architecture will store the image extracted data where pixel image is given as an input and voltage pulses are generated according to the pixel value. the voltage pulses are then applied as input to the Memristor crossbars and compared with a certain threshold voltage above which an output neuron responds. the above mention system is trained for image recognition applications in realtime scenarios. the realtime image processing based Memristor system can have huge application areas such as medical imaging, security, computer vision and robotics.
the proceedings contain 38 papers. the special focus in this conference is on Dynamic Response and Failure of Composite Materials. the topics include: Detection of Impact Damages on Full Scale Wing Using Distributed F...
ISBN:
(纸本)9783031776960
the proceedings contain 38 papers. the special focus in this conference is on Dynamic Response and Failure of Composite Materials. the topics include: Detection of Impact Damages on Full Scale Wing Using Distributed Fiber Optics Sensors Network;evolution of Unstable Skin-Stringer Debonding Propagation in Composite Aircraft Structures: Implications on Damage Tolerant Design;a Benchmark Between Conventional and Custom Heat Treaments for Inconel 718 Alloy Processed through Cold Metal Transfer Technology;real-time Shearography Measurements of 3D Printed Auxetic Specimens During Flexural Tests;analysis of the Crushing Behavior of Flat Composite Plates Produced by Sheet Molding Compound;effect of Tightening Torque on Bearing Performance of Kevlar Fiber Composite Bolted Joints Produced by Additive Manufacturing;general Damage Detections on Composite Panels Using Computer Vision Algorithms;Crashworthiness of C-Shaped CFRP Composites: A Numerical and Experimental Study;a Numerical-Experimental Study on the Impact Behaviour of Additive Manufactured bcc Lattice Structures;development of a Numerical Methodology Able to Simulate the Unstable Mixed Mode Delamination Growth in Stiffened Composite Panels Under Cyclic Loading Conditions;Numerical Investigation on the Static and Dynamic Behaviour of an Additive Manufactured UAV’s Horizontal Tail;Low Velocity Impact (LVI) Simulation of a CFRP Ply-Drop Laminates: A Numerical Analysis;structural Sandwich Panels for Roofing systems in Civil applications;Comparison of Various Processing Treatments on Uniaxial Compression Performance of Large Scale Additively Manufactured thermoplastic ABS Chopped Fiber Composite Structures;layer Height Treatments on Uniaxial Compression Performance of Industrial Large-Scale Additively Manufactured Polymer Composite Structures;homogenization Techniques for Nanocomposites: A Comprehensive Review.
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