Indirect evaporative air-cooling system is an environmentally sustainable substitute for air-cooling interior spaces especially in hot and dry climates. In this work, a system is numerically simulated which is a heat ...
ISBN:
(数字)9781837243150
Indirect evaporative air-cooling system is an environmentally sustainable substitute for air-cooling interior spaces especially in hot and dry climates. In this work, a system is numerically simulated which is a heat and mass exchanger comprised of polymeric materials such as polypropylene and non-woven fabric cloth. The numerical simulation is carried out by using COMSOL Multiphysics to pretend the heat and mass exchanger in order to identify the ideal thermal comfort under actual climate conditions. It is noted that the system may higher values of energy efficiency ratio and coefficient of performance, as high as 22.3 and 6.55, respectively. The predicted results demonstrated in the dew-point effectiveness, wet-bulb effectiveness, and cooling capacity where the maximum determined values are 0.6, 0.73, and 471 W, respectively. These predicted findings were validated with experimental results which showed a maximum deviation of around 4.78 %. Based on the numerical simulation study and validation, the indirect evaporative air-cooling system be capable of the designed for different operational conditions and climatic zones as per the requirements of end users.
With the advancement of Software-Defined Networking (SDN) technology, network programmability and flexibility have been significantly enhanced. However, effectively integrating traditional network systems with emergin...
详细信息
ISBN:
(数字)9798331533694
ISBN:
(纸本)9798331533700
With the advancement of Software-Defined Networking (SDN) technology, network programmability and flexibility have been significantly enhanced. However, effectively integrating traditional network systems with emerging programmable platforms remains a critical research challenge. This paper proposes a fusion architecture based on the P4Runtime protocol to achieve deep integration of SONiC white box switches and the P4 platform. By introducing SDN programmability, we design and implement a hybrid model that enables traditional network architectures to achieve advanced functionalities with the assistance of external SDN controllers. This paper provides a detailed discussion of the architecture design and implementation process, including P4 code development, compilation, target configuration file generation, and interaction mechanisms between the control plane and the data plane. Furthermore, we validate the applicability and performance of the architecture in various scenarios, offering robust support for future research and applications in programmable networks.
The proposed paper highlights the need for advanced milk quality measurement systems to enhance food safety and ensure quality assurance. Conventional methods are inefficient and incapable of monitoring real-time qual...
详细信息
ISBN:
(数字)9798331521691
ISBN:
(纸本)9798331521707
The proposed paper highlights the need for advanced milk quality measurement systems to enhance food safety and ensure quality assurance. Conventional methods are inefficient and incapable of monitoring real-time quality changes, thereby posing potential risks. This work focuses on a milk quality measurement system incorporating a fringing field interdigital capacitive sensor, consisting of three key models: Capacitive Sensing with signal conditioning, Dielectric Property Analysis, and Predictive Quality Assessment. The IoT-based Capacitive Sensing Model detects minute changes in milk quality by measuring capacitance variations caused by dielectric properties. It includes temperature compensation for accurate results. The Dielectric Property Analysis Model correlates dielectric constants with milk quality parameters such as fat, protein, and contamination levels. The Predictive Quality Assessment Model uses machine learning algorithms to detect trends and provide alerts for deviations. Together, these models enable real-time monitoring, enhancing accuracy, reliability, and predictive capabilities, significantly improving food safety and quality assurance practices.
Accurate pest identification is crucial for both effective pest management and crop protection. Pests must be found early in order to minimise damage and guarantee crop security. Conventional techniques typically enta...
详细信息
ISBN:
(数字)9798331521691
ISBN:
(纸本)9798331521707
Accurate pest identification is crucial for both effective pest management and crop protection. Pests must be found early in order to minimise damage and guarantee crop security. Conventional techniques typically entail visual examination and professional involvement, which might be time-consuming and susceptible to errors by humans. On the other hand, deep learning-powered high-performance systems can now more accurately identify pests thanks to developments in computer vision. In this work, we employed the Keras-based deep learning models VGG16 and VGG19 to construct a passive pest detection system. We greatly improved the efficacy of these models in identifying pest species by using strategies such data augmentation, model optimization, and modification of validated models. The VGG16 model produced an amazing accuracy rate of 99.8% and VGG19 model produced an accuracy of 96.8 % in our testing.
This study describes a music recommendation system that uses TF-IDF vectorization and cosine similarity to propose songs based on lyrical similarities. By converting music lyrics into numerical vectors and assessing s...
详细信息
ISBN:
(数字)9798350357509
ISBN:
(纸本)9798350357516
This study describes a music recommendation system that uses TF-IDF vectorization and cosine similarity to propose songs based on lyrical similarities. By converting music lyrics into numerical vectors and assessing song similarities, the system generates textual-relevant recommendations. The model includes an option to filter by artist, which improves tailored recommendations. We used data preprocessing, stemming, and TF-IDF vectorization, along with cosine similarity, to provide music recommendations. The findings show that text-based similarity is beneficial for producing music recommendations. This method could benefit streaming services by pushing personalization beyond user preferences and collaborative filtering.
This study introduces a new way to improve the reliability of pea variety identification by using two methods together: Convolutional Neural Networks (CNN) and Naive Bayes (NB). Types of peas have small differences in...
详细信息
ISBN:
(数字)9798331521691
ISBN:
(纸本)9798331521707
This study introduces a new way to improve the reliability of pea variety identification by using two methods together: Convolutional Neural Networks (CNN) and Naive Bayes (NB). Types of peas have small differences in appearance, making it hard to sort them using old ways. In this study, the task was to classify different types of peas into three groups: Azad P-1, Pusa Pragati, and Arkel. The suggested plan combines the good things of CNN for getting features from picture data and NB for chance sorting. The CNN part finds complex patterns and space details in pea pictures, while the NB sorter improves sorting using chance modeling. The combination of these two ways tries to use their different good points, which makes a strong and true pea-kind identification system. Testing on a big group of data shows that the mixed model - CNN and NB together is good. The proposed model gets an overall accuracy of 96.2% in the case of the testing dataset. The study helps in how to look at farm pictures. It's useful for scientists and workers who work with peas, pea growing and improving them.
Retrieval-augmented generation (RAG) expands the capabilities of large language models (LLMs) in various applications by integrating relevant information retrieved from external data sources. However, the RAG systems ...
详细信息
ISBN:
(数字)9798350368741
ISBN:
(纸本)9798350368758
Retrieval-augmented generation (RAG) expands the capabilities of large language models (LLMs) in various applications by integrating relevant information retrieved from external data sources. However, the RAG systems are exposed to substantial privacy risks during the information retrieval process, leading to potential data leakage of private information. In this work, we present a Privacy-preserving Retrieval-augmented generation via Embedding Space Shifting (PRESS), systematically exploring how to protect privacy in RAG systems. Specifically, we first conduct proximal policy optimization (PPO) based training on pre-trained language models to generate target training samples. Then we employ a purposive shift fine-tuning on the text embedding model with the generated samples for guiding the RAG system to map potential privacy leaking queries to safe target in embedding space. Extensive experimental results on representative models and datasets demonstrate that our protection method achieves high defense performance with high efficiency while keeping the normal functionality of the RAG system.
The non-contact accuracy of infrared thermography has made it indispensable for electrical equipment inspection. In order to recognize electrical equipment in thermal pictures, this study presents a revolutionary neur...
详细信息
ISBN:
(数字)9798331533205
ISBN:
(纸本)9798331533212
The non-contact accuracy of infrared thermography has made it indispensable for electrical equipment inspection. In order to recognize electrical equipment in thermal pictures, this study presents a revolutionary neural network-based learning model. Based on the neural network algorithm, the proposed work suggests a real-time object detection model YOLO-V8, that can predict the coordinate points, orientation angle, and type of class of certain equipment. To improve accuracy, particularly for small items, the model incorporates an orientation consistency prior. In the proposed work, an extensive thermal imaging dataset of a distribution transformer; covered a range of settings and equipment kinds. According to experimental results, the suggested model achieves a mean average precision of 93.7%, demonstrating its robustness to noise and ability to function at 20 frames per second resulting in accurate detection of different segments of a distribution transformer in a thermal image.
This paper presents a novel automated system that leverages a Raspberry Pi to operate a 24 GHz single-channel continuous wave (CW) radar for through-the-wall concurrent vital sign monitoring of two subjects. The syste...
详细信息
ISBN:
(数字)9798331510473
ISBN:
(纸本)9798331510480
This paper presents a novel automated system that leverages a Raspberry Pi to operate a 24 GHz single-channel continuous wave (CW) radar for through-the-wall concurrent vital sign monitoring of two subjects. The system autonomously performs independent component analysis using the joint approximation diagonalization of eigenmatrices (ICA-JADE) to separate both individuals' breathing rates (BR). It applies the maximal overlap discrete wavelet transform (MODWT) after ICA-JADE to extract heart rates (HR). By integrating the radar system and ICA-JADE into an embedded platform, the system operates without requiring manual intervention. The automation framework enables real-time processing, enhancing the system's practical deployment in real-world applications. The results demonstrate high accuracy in isolating BR and HR using ICA-JADE, as benchmarked against conventional chest belts and ECG measurements. This fully automated approach shows significant potential for applications such as search and rescue operations, security surveillance, and remote healthcare monitoring through barriers.
Brain tumors are abnormal cells that grow inside the brain. If not diagnosed or treated early, such incidents can be fatal. Types of brain tumors include meningioma, glioma, and pituitary tumors. Magnetic resonance im...
详细信息
ISBN:
(数字)9798331521691
ISBN:
(纸本)9798331521707
Brain tumors are abnormal cells that grow inside the brain. If not diagnosed or treated early, such incidents can be fatal. Types of brain tumors include meningioma, glioma, and pituitary tumors. Magnetic resonance imaging (MRI) is an essential resource in diagnosis due to the clear expression of brain tissues, enabling professionals to analyze abnormal developments in the brain. The detection and classification of brain tumors using MRIs can be automated using machine learning techniques that can help to identify and diagnose brain tumors in their early stages, and subsequent treatment may result in a lower death rate. Transfer Learning allows the transfer of knowledge learned from large-scale datasets to other smaller datasets, thus avoiding wide-ranging training requirements with high accuracy and making the system converge much faster. This substantially minimizes computational resources and time in the training process. Transfer Learning also enables the effective MRI image abstraction of complex features, improved accuracy in tumor detection and classification, minimizes overfitting, especially with small amounts of medical data. In this work, we have used Transfer Learning with two pre-trained deep models, VGG16 and ResNet-50 on 3064 images available in the dataset to classify brain tumors. Fine-tuning for VGG16 and ResNet-50, we achieved validation accuracies of 98.85% and 97.72%, respectively. The results show that transfer learning can be used for the classification of brain tumors to enhance efficiency and precision for early detection and treatment.
暂无评论