CAD model update on as-built geometries with morphing technique: ITER winding pack

The paper presents an application the research results previously done by group on the influence of technological parameters to the deformation angle and finish surface quality in order to choose technology parameters for the incremental sheet forming (ISF) process to produce products for the purpose of rapid prototyping or single-batch production, including all steps from design and process 3D CAD model, calculate and select the technological parameters, setting up manufacturing and the stage of post-processing. The samples formed successfully showed high applicability of this technology to practical work, the complex products with the real size can be produced in industries: automotive, motorcycle, civil...

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Analysis and CAD modelling of a new geometric spiroid hob

International Review of Applied Sciences and Engineering ◽

10.1556/1848.2015.6.2.2 ◽

2015 ◽

Vol 6 (2) ◽

pp. 89-93

Author(s):

S. Bodzás ◽

I. Dudás

Keyword(s):

Computer Modelling ◽

Cad Model ◽

Axial Section ◽

Cad Modelling ◽

Definition Of

The objectives of this publication are the analysis of surfaces and edges of a new geometric spiroid hob with arched profile in axial section and the definition of their equations for computer modelling. On the basis of this we will work out the CAD model of hob for our further geometric calculations.

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A Novel Approach to the Banyu Urip 3D Geologic Model Update

10.29118/ipa.50.17.546.g ◽

2018 ◽

Author(s):

Adam Zeiza

Keyword(s):

Novel Approach ◽

Model Update ◽

Geologic Model

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A CAD Model for the Inductive Strip in Finline

10.21236/ada199346 ◽

1988 ◽

Author(s):

Jeffrey B. Knorr

Keyword(s):

Cad Model

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Community-based model for the delivery of antiretroviral therapy in Cambodia: a quasi-experimental study protocol

BMC Infectious Diseases ◽

10.1186/s12879-021-06414-y ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Sovannary Tuot ◽

Alvin Kuo Jing Teo ◽

Kiesha Prem ◽

Pheak Chhoun ◽

Chamroen Pall ◽

...

Keyword(s):

Experimental Study ◽

Antiretroviral Therapy ◽

Scale Up ◽

Economic Evaluations ◽

People Living With Hiv ◽

Cad Model ◽

Community Based ◽

Quasi Experimental ◽

Living With Hiv ◽

Art Delivery

Abstract Background Multi-month dispensing (MMD) is the mainstay mechanism for clinically stable people living with HIV in Cambodia to refill antiretroviral therapy (ART) every 3-6 months. However, less frequent ART dispensing through the community-based ART delivery (CAD) model could further reduce the clients’ and health facilities’ burden. While community-based services have been recognized as an integral component of HIV response in Cambodia, their role and effectiveness in ART delivery have yet to be systematically assessed. This study aims to evaluate the CAD model’s effectiveness on the continuum of care and treatment outcomes for stable people living with HIV in Cambodia. Methods We will conduct this quasi-experimental study in 20 ART clinics across the capital city and nine provinces between May 2021 and April 2023. Study sites were purposively selected based on the availability of implementing partners, the number of people living with HIV each clinic serves, and the accessibility of the clinics. In the intervention arm, approximately 2000 stable people living with HIV will receive ART and services from the CAD model. Another 2000 stable people living with HIV in the control arm will receive MMD—a standard care model for stable people living with HIV. The primary outcomes will be retention in care, viral load suppression, and adherence to ART. The secondary endpoints will include health providers’ work burden, the model’s cost-effectiveness, quality of life, mental health, social support, stigma, and discrimination. We will compare the outcome indicators within each arm at baseline, midline, and endline using descriptive and inferential statistics. We will evaluate the differences between the intervention and control arms using the difference-in-differences method. We will perform economic evaluations to determine if the intervention is cost-effective. Discussion This study will build the evidence base for future implementation and scale-up of CAD model in Cambodia and other similar settings. Furthermore, it will strengthen engagements with community stakeholders and further improve community mobilization, a vital pillar of the Cambodian HIV response. Trial registration ClinicalTrials.gov, NCT04766710. Registered 23 February 2021, Version 1.

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FedPSO: Federated Learning Using Particle Swarm Optimization to Reduce Communication Costs

Sensors ◽

10.3390/s21020600 ◽

2021 ◽

Vol 21 (2) ◽

pp. 600

Author(s):

Sunghwan Park ◽

Yeryoung Suh ◽

Jaewoo Lee

Keyword(s):

Particle Swarm Optimization ◽

Data Privacy ◽

Particle Swarm ◽

Global Model ◽

Network Communication ◽

Improve Performance ◽

Communication Performance ◽

Swarm Optimization ◽

Model Update ◽

Network Environments

Federated learning is a learning method that collects only learned models on a server to ensure data privacy. This method does not collect data on the server but instead proceeds with data directly from distributed clients. Because federated learning clients often have limited communication bandwidth, communication between servers and clients should be optimized to improve performance. Federated learning clients often use Wi-Fi and have to communicate in unstable network environments. However, as existing federated learning aggregation algorithms transmit and receive a large amount of weights, accuracy is significantly reduced in unstable network environments. In this study, we propose the algorithm using particle swarm optimization algorithm instead of FedAvg, which updates the global model by collecting weights of learned models that were mainly used in federated learning. The algorithm is named as federated particle swarm optimization (FedPSO), and we increase its robustness in unstable network environments by transmitting score values rather than large weights. Thus, we propose a FedPSO, a global model update algorithm with improved network communication performance, by changing the form of the data that clients transmit to servers. This study showed that applying FedPSO significantly reduced the amount of data used in network communication and improved the accuracy of the global model by an average of 9.47%. Moreover, it showed an improvement in loss of accuracy by approximately 4% in experiments on an unstable network.

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Automatized Evaluation of Students’ CAD Models

Education Sciences ◽

10.3390/educsci11040145 ◽

2021 ◽

Vol 11 (4) ◽

pp. 145

Author(s):

Nenad Bojcetic ◽

Filip Valjak ◽

Dragan Zezelj ◽

Tomislav Martinec

Keyword(s):

Computer Aided Design ◽

Three Dimensional ◽

Computer Application ◽

Test Cases ◽

Cad Model ◽

Computer Solution ◽

3D Cad ◽

Computer Aided ◽

Cad Models ◽

Aided Design

The article describes an attempt to address the automatized evaluation of student three-dimensional (3D) computer-aided design (CAD) models. The driving idea was conceptualized under the restraints of the COVID pandemic, driven by the problem of evaluating a large number of student 3D CAD models. The described computer solution can be implemented using any CAD computer application that supports customization. Test cases showed that the proposed solution was valid and could be used to evaluate many students’ 3D CAD models. The computer solution can also be used to help students to better understand how to create a 3D CAD model, thereby complying with the requirements of particular teachers.

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