Research on the Contour Capture Algorithm of the Key Action of Dance with Computer-Aided

2021 ◽  
Vol 7 (5) ◽  
pp. 1160-1169
Author(s):  
Jin Zhang ◽  
Xin Li
Keyword(s):  
Response Time ◽  
Experimental Results ◽  
Action Sequence ◽  
Posture Change ◽  
Concave Part ◽  
Computer Aided

In order to solve the problem that the current key dance motion contour capture algorithm cannot effectively capture the concave part of the key dance motion contour, which leads to large contour capture error and long response time, a computer-aided key dance motion contour capture algorithm is proposed. The action sequence without background is obtained from the dance video, and the action sequence is optimized to reduce the interference of contour capture. Algorithm tracks the posture change of the object in the dance action sequence, determines the contour capture area, and completes the contour capture of the dance key action. Experimental results show that the proposed method can effectively improve the capture accuracy and shorten the response time.

Computer Aided Resistance Prediction Of High Speed Planing Hull Forms

1994 ◽  
pp. 23-43
Author(s):  
Mohd. Ramzan Mainal
Keyword(s):  
High Speed ◽  
Computational Procedure ◽  
Model Testing ◽  
Experimental Results ◽  
Total Resistance ◽  
Computer Prediction ◽  
Computer Aided ◽  
Tremendous Amount ◽  
Resistance Prediction ◽  
Hull Forms

Planing crafts have been the traditional solution to high speed at sea. However, the limitations on high speed planing hull forms in a seaway have led to a tremendous amount of work currently being carried out on hydrofoils, catamarans and hybrid crafts. Despite these facts, the warship, commercial and pleasure markets still show demands for planing crafts and many new designs appear every year. The objective of this paper is to develop a computational procedure for predicting the total resistance of hard chine planing hull forms, prior to model testing. The computer prediction is later validated with existing experimental results.

Computer Aided Finite Element Simulation of the Developed Driller System for Bone Drilling Process in Orthopedic Surgery

2019 ◽  
Vol 18 (04) ◽  
pp. 583-594 ◽  
Author(s):  
Kadir Gok ◽  
Arif Gok ◽  
Yasin Kisioglu
Keyword(s):  
Finite Element ◽  
Temperature Rise ◽  
Orthopedic Surgery ◽  
Soft Tissues ◽  
Experimental Results ◽  
Drilling Process ◽  
Drill Bit ◽  
Bone Drilling ◽  
Computer Aided ◽  
Driller System

Heat reveals during the bone drilling operations in orthopedic surgery because of friction between bone and surgical drill bit. The heating causes extremely important damages in bone and soft tissues. The heating has a critical threshold and it is known as 47∘C. If bone temperature value exceeds 47∘C, osteonecrosis occurs in bones and soft tissues. Many factors such as surgical drill bit geometry and material, drilling parameters, coolant has important roles for the temperature rise. Many methods are used to decrease the temperature rise. The most effective method among them is to use the coolant internally. Numeric simulations of a new driller system to avoid the overheating during the orthopedic operating processes were performed in this study. The numerical simulation with/without coolant was also performed using the finite element based software. Computer aided simulation studies were used to measure the bone temperatures occurred during the bone drilling processes. The outcomes from the simulations were compared with the experimental results. A good temperature level agreement between the experimental results and FEA simulations was found during the bone drilling process.

Extrusion Process Modeling for Aqueous-Based Ceramic Pastes—Part 2: Experimental Verification

2013 ◽  
Vol 135 (5) ◽  
Author(s):  
Mingyang Li ◽  
Lie Tang ◽  
Robert G. Landers ◽  
Ming C. Leu
Keyword(s):  
Constitutive Model ◽  
Response Time ◽  
Rapid Change ◽  
Experimental Studies ◽  
Extrusion Process ◽  
Experimental Results ◽  
Constitutive Law ◽  
Extrusion Force ◽  
Air Bubble ◽  
Highly Nonlinear

In the Part 1 paper, a constitutive law for the extrusion process of aqueous-based ceramic pastes was created. In the study described herein, a capillary rheometer was used to calibrate the viscosity of an alumina paste, and a single extruder system was used to conduct extrusion experiments to validate the constitutive model. It is shown that the extrusion response time and its change both depend on the amount of air in the extruder and the magnitude of the extrusion force. When the extrusion force is small, the rapid change of extrusion response time gives the extrusion dynamic an apparent quadratic response. When the extrusion force is large, the extrusion response time changes slowly, and is dominated by a first-order response. Air bubble release was observed in some of the experiments. A series of simulation and experimental studies were conducted to validate the predictive capabilities of the constitutive model for both steady-state and transient extrusion force behaviors. Good agreements between the simulation and experimental results were obtained. The experimental results demonstrate that the constitutive model is capable of capturing the characteristics of the highly nonlinear response at low extrusion forces and the air bubble release phenomenon. The numerical studies show that the decrease in the extrusion force during an air bubble release depends on the volume of the air bubble.

scholarly journals Design and Realization of Remote Graphic Design System Based on Computer Aid

2021 ◽  
Vol 2074 (1) ◽  
pp. 012028
Author(s):  
Yan Liu
Keyword(s):  
Graphic Design ◽  
Experimental Results ◽  
Design System ◽  
Computer Aid ◽  
Computer Aided ◽  
Standard Value ◽  
The Difference

Abstract The traditional remote graphic design system cannot provide users with the basis of design geometry theory, which leads to the disharmony of the design works. For this reason, a computer-aided remote graphic design system is proposed. Determine the image import direction, obtain the contour ratio, compare it with different dynamic rectangle ratios, and give the difference between the image and the standard value and the recommended adjustment value. The experimental results show that the works designed by the design system conform to geometry, are visually harmonious, and the evaluation results are good.

Research on dynamic load balancing of data flow under big data platform

2021 ◽  
pp. 2150014
Author(s):  
Junlin Sun ◽  
Yi Zhang
Keyword(s):  
Big Data ◽  
Load Balancing ◽  
Response Time ◽  
Dynamic Load ◽  
Loss Rate ◽  
Data Flow ◽  
Experimental Results ◽  
Dynamic Load Balancing ◽  
Data Platform ◽  
Flow Loss

In the big data platform, because of the large amount of data, the problem of load imbalance is prominent. Most of the current load balancing methods have problems such as high data flow loss rate and long response time; therefore, more effective load balancing method is urgently needed. Taking HBase as the research subject, the study analyzed the dynamic load balancing method of data flow. First, the HBase platform was introduced briefly, and then the dynamic load-balancing algorithm was designed. The data flow was divided into blocks, and then the load of nodes was predicted based on the grey prediction GM(1,1) model. Finally, the load was migrated through the dynamic adjustable method to achieve load balancing. The experimental results showed that the accuracy of the method for load prediction was high, the average error percentage was 0.93%, and the average response time was short; under 3000 tasks, the response time of the method designed in this study was 14.17% shorter than that of the method combining TV white space (TVWS) and long-term evolution (LTE); the average flow of nodes with the largest load was also smaller, and the data flow loss rate was basically 0%. The experimental results show the effectiveness of the proposed method, which can be further promoted and applied in practice.

Development of Computer-Aided Manufacturing System for a Jewelry-Making CNC Machine

2014 ◽  
Vol 596 ◽  
pp. 83-89 ◽  
Author(s):  
Ya Miao ◽  
Kai He ◽  
Hai Tao Fang ◽  
Zhi Min Zhou ◽  
Ru Xu Du
Keyword(s):  
Manufacturing System ◽  
Experimental Results ◽  
Machining Process ◽  
Computer Interface ◽  
Machining Parameters ◽  
Basic Design ◽  
Human Computer Interface ◽  
Cnc Machine ◽  
Gold Bead ◽  
Computer Aided

Abstract. This paper designs a CAM system for a jewelry-making CNC machine. The CAM system not only provides a human-computer interface for setting machining parameters, but also can generate special NC programs automatically and realize the simulation for the machining process. In addition, the paper gives an efficient application for machining an ellipsoidal gold bead. The basic design of the jewelry-making CAM system and the experimental results are presented.

CONSTRUCTING SURFACE FEATURES THROUGH DEFORMATION

2010 ◽  
Vol 10 (01) ◽  
pp. 41-56
Author(s):  
XIAOPING WANG ◽  
SHENGLAN LIU ◽  
LIYAN ZHANG
Keyword(s):  
Computer Graphics ◽  
Computer Aided Design ◽  
Mechanical Design ◽  
Computational Cost ◽  
Experimental Results ◽  
Mathematical Approach ◽  
Computer Aided ◽  
Aided Design ◽  
Low Computational Cost ◽  
Frequent Problem

A frequent problem in computer aided mechanical design is the construction of arbitrarily-shaped ribs and beads on surfaces, to increase their rigidity or for aesthetic reasons. We improve upon a previous mathematical approach for defining such ribs and beads, based on using so-called extension functions to define a deformation matrix, which is then applied to the underlying shape. Our improvements offer important practical advantages: firstly, by use of cosine extension functions, we get a greater control over, and flexibility of, rib shape, including the possibility of repeating ribs; secondly, we can directly control the spine curves. We give experimental results to demonstrate that the method is simple and intuitive, has low computational cost, and is potentially useful for computer aided design, computer graphics and other applications.

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