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15th International Conference on Computing Communication and Networking Technologies, ICCCNT 2024

作者： Rampal, Sourav Ranganathaswamy, M.K. Tamkhade, Jayashree Vijayalakshmi, V.J. Marwaha, Pradeep Hariharasudhan, S. Chitkara University Chitkara Centre for Research and Development Himachal Pradesh 174103 India Karnataka Bangalore India Vishwakarma Institute of Technology Pune India Karpagam Academy of Higher Education Department of Electrical and Electronics Engineering Coimbatore641021 India Chitkara University Institute of Engineering and Technology Chitkara University Punjab Rajpura140417 India Prince Shri Venkateshwara Padmavathy Engineering College Department of Information Technology Chennai127 India

ISBN: (纸本)9798350370249

Dynamic content material is a rising shape of cell marketing, which is meant to decorate consumer engagement and improve marketing campaign effectiveness by taking full advantage of the cellular tool's native skills. In this observation, we inspect the effectiveness of dynamic content material in cell marketing by means of comparing it to extra conventional strategies, together with static banners, in addition to other forms of cellular-unique advertising. Our studies are comprised of a complete evaluation of existing literature, together with empirical statistics derived from surveys, interviews, and relevant case research. We recall the impact of different factors on marketing campaign overall performance, which includes tool attributes, ad shipping method, person interaction, and consumer conduct. Moreover, we explore more than a few famous marketing strategies, inclusive of retargeting and interactive commercials, and their effect on campaign achievement. We finish by supplying insights and guidelines for optimizing cellular advert campaigns and the usage of dynamic content material. © 2024 IEEE.

关键词： Marketing

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Evaluating wall installation methods for cylindrical solar cells in urban areas by luminous flux simulation 13

Evaluating wall installation methods for cylindrical solar c...

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13th IEEE Power and Energy Society: Innovative Smart Grid Technologies - Asia, ISGT Asia 2024

作者： Tamura, Fumiki Yokogawa, Shinji Hayase, Shuzi Nakamura, Masaki Hirami, Tomoyuki Hirotani, Daisuke Sono, Yuya Takenoya, Toshihiro Nomura, Daishiro Nomura, Takatoshi Hayashi, Masahiro Honma, Kento The University of Electro-Communications Graduate School of Informatics and Engineering Department of Informatics Tokyo Japan The University of Electro-Communications Info-Power Energy System Research Center Tokyo Japan Ushio Inc Marketing Division Climate Solution Department Japan Marketing Division Ushio Inc Global Warming Solution Group Climate Solution Department Japan Fujico CO. Ltd Technology Development Center Japan Ckd Corporation New Business Development Office Japan The University of Electro-Communications Informatics and Computer Engineering Tokyo Japan

ISBN: (纸本)9798350373929

In urban areas of Japan, such as Tokyo, overcrowding in condominiums and office buildings leaves limited flat land for installing solar panels, resulting in inadequate installation of renewable energy. To advance photovoltaic power generation and support Japan's goal of achieving carbon neutrality by 2050, we are exploring the use of cylindrical solar cells in these dense urban settings. Cylindrical solar cells are ideal for metropolitan installations due to their lightweight design and wind resistance. However, it is crucial to consider how installation configurations influence electricity production, especially the need to minimize shadowing from nearby buildings and other urban elements. This study utilized lighting simulation software to model the light flux based on actual installation conditions of cylindrical solar cells to identify optimal placement strategies. Additionally, this configuration was compared with traditional flat-plate solar cells under similar conditions. Findings indicate that cylindrical solar cells offer flexible installation options. Notably, employing a horizontal grid layout for cylindrical cells addresses the challenges associated with wall-mounted flat-plate cells, which suffer reduced luminous flux at higher solar altitudes. These results demonstrate that cylindrical solar cells can effectively overcome the challenges of photovoltaic installation in densely populated urban areas. © 2024 IEEE.

关键词： Apartment houses

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Challenges and Solutions for Seismic Amplitude Pitfalls in Dim Spot: Case Study from the Shaximiao Formation of Tight Sandstone Gas Reservoirs, the Western Sichuan Depression, China

SSRN

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SSRN 2024年

作者： Tan, Feng Yang, Ping Cao, Jun-Xing Li, Le Cui, Zhihua Ma, Qian Research and Development Center BGP CNPC Zhuozhou072751 China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Chengdu610059 China School of Civil and Transport Engineering Ningbo University of Technology Ningbo Zhejiang315211 China Exploration and Development Research Institute of Southwest Oil & Gasfield Company PetroChina Chengdu610041 China

Dim spot reservoirs were once thought to be as abundant as bright spots and were widely distributed in major oil and gas basins. The presence of seismic amplitude pitfalls results in the number of identified dim spots being far fewer than bright spots. In this study, we first discuss the challenges of identifying dim spot sandstone in the tight gas formations of the Shaximiao Group in the Western Sichuan Depression and then propose two solutions to help improve detection capacity. The primary challenge arises when the reflection coefficient curve crosses the zero axis with increasing incident angles, leading to a "positive-negative interference" that weakens the stacked amplitude. For that, we explore using AVO forward modelling to understand the phenomena of being "hidden" on PP waves and not so "dark" on PS waves. Based on this understanding, we propose using a preferred angle domain stacking method on PP waves and a direct identification method on PS waves. Practical applications in the Zhongjiang and Zitong areas demonstrate the effectiveness of the solutions in identifying hidden channel sandstone reservoirs. We suggest adapting these methods to discover more dim spot reservoirs in other areas, especially in tight reservoirs. © 2024, The Authors. All rights reserved.

关键词： Shear waves

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Implementing Machine Learning Algorithms to Indentify Distributed Denial-of-Service Attacks 7

Implementing Machine Learning Algorithms to Indentify Distri...

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7th International Conference on Image Information Processing, ICIIP 2023

作者： Mehra, Ankush Singh, Gurpreet Badotra, Sumit Kaur, Balwinder Verma, Amit Lovely Professional University Department of Computer Science And Engineering Punjab Phagwara India Bennett University School of Computer Science Engineering And Technology Greater Noida India University Center For Research And Development Chandigarh University Department of Computer Science And Engineering Mohali Gharuan India

ISBN: (纸本)9798350371406

An Internet server, service, or network may be the subject of a distributed denial-of-service (DDoS) assault, in which the attacker attempts to interrupt regular traffic by flooding the target with an excessive amount of data requests. Network security has been severely compromised as a result. We choose the vast majority of network parameters to characterize the traffic in order to get a complete picture of it. As a further step toward lowering the detection time complexity, we employ the PCA approach to compress the features' dimensions. Using principal component analysis (PCA), we can save much of the original data while drastically cutting down on forecast time. After data dimensionality reduction, the RNN is used to train and get a detection model. In comparison to other approaches for detecting DDoS assaults, PCA-RNN performs much better on the real-world dataset, as shown by the evaluation results. © 2023 IEEE.

关键词： Principal component analysis

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Preparation of Gas-Suspended Proppant and Field Fracturing Trials

Preparation of Gas-Suspended Proppant and Field Fracturing T...

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International Conference on Energy Engineering, ICEE 2023

作者： Zhang, Jingchun Ren, Hongda Meng, Xiangyan Tang, Xiaochuan Jia, Penghui Engineering Technology Research Institute Xinjiang Oilfield Company CNPC Karamay834000 China Xinjiang Key Laboratory of Shale Oil Exploration and Development Karamay834000 China Xinjiang Oilfield Company CNPC Karamay834000 China Zhundong Oil Production Plant Xinjiang Oilfield Company CNPC Changji831511 China

ISBN: (纸本)9789819771455

In recent hydraulic fracturing field tests around the world, the proppant placement in fractures has been observed by drilling cores from the fractured formation, which showed that the proppant placement in fractures is shorter than expected. To achieve further placement of proppant in fractures and improve the fracturing effect, this study modified the proppant surface using a chemical modifier so that the proppant could adsorb tiny gas bubbles and suspend in water or slick water, thereby improving the proppant transport. The effects of modifier dosage, temperature, drag reducer dosage and salt concentration on the suspension performance of gas-suspended proppant were investigated in the laboratory. The gas-suspended proppant was adopted in completing field trials for 2 wells. Cumulative oil production of 32 days from these two wells demonstrates enhancements of 59.7% and 5.8% over the offset well, respectively. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Field tests Gas-suspended proppant Hydraulic fracturing Production enhancement Surface modification

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A review on non-isolated low-power DC-DC converter topologies with high output gain for solar photovoltaic system applications

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Clean Energy 2022年第4期6卷 557-572页

作者： Tole Sutikno Hendril Satrian Purnama Nuryono Satya Widodo Sanjeevikumar Padmanaban Mohd Rodhi Sahid Department of Electrical Engineering Industrial Technology FacultyUniversitas Ahmad Dahlan55191 YogyakartaIndonesia Embedded System and Power Electronics Research Group 55191 YogyakartaIndonesia CTiF Global Capsule Department of Business Development and TechnologyAarhus UniversityHerning 7400Denmark School of Electrical Engineering Faculty of EngineeringUniversiti Teknologi MalaysiaJohorMalaysia

The major challenges of the high-gain DC-DC boost converters are high-voltage stress on the switch,extreme duty ratio operation,diode reverse-recovery and converter efficiency *** are many topologies of high-gain converters that have been widely developed to overcome those problems,especially for solar photovoltaic(PV)power-system *** this paper,20 high-gain and low-power DC-DC converter topologies are selected from many topologies of available ***,seven prospective topologies with conversion ratios of>15 are thoroughly reviewed and *** selected topologies are:(i)voltage-multiplier cell,(ii)voltage doubler,(iii)coupled inductor,(iv)converter with a coupled inductor and switch capacitor,(v)converter with a switched inductor and switched capacitor,(vi)cascading techniques and(vii)voltage-lift *** topology has its advantages and disadvantages.A comparison of the seven topologies is provided in terms of the number of components,hardware complexity,maximum converter efficiency and voltage stress on the *** are presented in ***,in the future,it will be easier for researchers and policymakers to choose the right converter topologies and build them into solar PV systems based on their needs.

关键词： distributed energy and smart grid energy and environment energy system and policy solar

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Study on empirical model and CFD about pressure rising in Cab during door closure 60

Study on empirical model and CFD about pressure rising in Ca...

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60th International Conference on Vibroengineering

作者： Su, Lili Pan, Zuofeng Qiu, Wenjie Li, Hongliang Peng, Tao Zhang, Zhiguo Automotive Engineering Research Institute Co. Ltd Tianjin China FAW Research and Development Institute State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise & Safety Control Changchun China College of Automobile and Transportation Tianjin University of Technology and Education Tianjin China

Aiming at the problem that there is a strong eardrum pressure in the passenger car during the closing process, two analysis and prediction methods, fast formula prediction and CFD simulation based on accurate models, are proposed. The regression model of ear pressure comfort was established by DOE method and multiple linear regression;The simulation software star-CCM+ is applied to simulate and analyze the dynamic characteristics of the flow field in the cockpit during the closing process by using the overlapping grid technology, and the pressure change curve near the ear is obtained. Finally, the CFD numerical simulation model is established by comparing and analyzing the regression prediction analysis results and the real vehicle test data. The results show that the effects of closing speed, effective opening area of pressure relief valve and air tightness of the whole vehicle on the pressure of passengers' eardrums decrease in turn, and the prediction error of multiple linear regression equation is 17 %;The analysis error of the internal flow field dynamic characteristic model based on refined modeling is 8 %. This study provides a theoretical basis for solving the problem of rapid prediction of eardrum pressure and optimization of engineering structure. © 2022 JVE International. All rights reserved.

关键词： Design of experiments

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Residential electricity current and appliance dataset for AC-event detection from Indian dwellings

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Energy Informatics 2022年第4期5卷 1-12页

作者： Tejaswini, Dharani Ramapragada, Pavan Gundepudi, Sraavani Kandukuri, Prabhakar Rao Garg, Vishal Mathur, Jyotirmay Gupta, Rajat Center for IT in Building Science International Institute of Information Technology Hyderabad500032 India Center for Energy and Environment Malaviya National Institute of Technology Jaipur302017 India Low Carbon Building Research Group School of Architecture Oxford Institute for Sustainable Development Oxford Brookes University OxfordOX3 0BP United Kingdom

Air Conditioners (ACs) have become a major contributor to residential electricity consumption in India. Non-intrusive Load Monitoring (NILM) can be used to understand residential AC use and its contribution to electricity consumption. NILM techniques use ground truth information along with meter readings to train disaggregation algorithms. There are datasets available for disaggregation, but no dataset is available for a hot tropical country like India especially for AC event detection. Our dataset’s primary objective is to help train NILM algorithms for AC event detection and compressor operations. The dataset comprises of home-level electrical current consumption and manually tagged AC ground truth (ON/OFF status) data at 1-min interval, indoor environment temperature and relative humidity readings at 5-min interval and dwelling, AC and household characteristics. The data was collected from 11 homes located in a composite climate zone-Hyderabad, India for 19 summer days (May) 2019. The dataset consists of 1.6 million data points and 450 AC cycles with each cycle having a runtime of more than 60 min (> 2000 compressor ON/OF cycles). Public availability of such a dataset will allow researchers to develop, train and test NILM algorithms that recognize AC and identify compressor operations. © 2022, The Author(s).

关键词： Domestic appliances

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Automatic Detection Method of Target Axis and Mark Ring Based on Edge Optimization and Line Screening

Automatic Detection Method of Target Axis and Mark Ring Base...

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Image Processing, Computer Vision and Machine Learning (ICICML), International Conference on

作者： Xinrui Yang Junbiao Chen Mingwei Gao Jing Cao Kai Wang School of Optics and Photonics Beijing Institute of Technology Beijing China Testing Technology Center Norinco Group Testing and Research Institute Xi’an China Development Planning Service Norinco Group Testing and Research Institute Xi’an China

ISBN: (数字)9798350355413

ISBN: (纸本)9798350355420

Aiming at the problem that traditional target contour and central axis detection algorithms are easily affected by factors such as non-uniform backgrounds, incomplete target imaging, and tail flame interference, which can lead to deviations in the central axis and mass center, an automatic detection method for the object central axis and mark rings based on edge optimization and line screening is proposed. Firstly, the frame difference algorithm is combined with canny algorithm to initially locate the ROI region of the moving target. Then, an improved edge detection algorithm based on the OTSU method is used to automatically extract the effective edges. Firstly, the frame difference algorithm is combined with the canny algorithm to initially locate the ROI region of the moving target. Then, an improved edge detection algorithm based on the OTSU algorithm is used to automatically extract the effective edges. After that, the target attitude interval and length threshold are calculated using EDLines algorithm, and the central axis is selected based on hough transform and line screening criteria. Finally, the mark rings are detected through RGB image segmentation and morphological operations, and their intersections with the central axis are used as the feature points. The experimental results show that the proposed method has obvious advantages over the traditional algorithms in engineering application, detection efficiency and accuracy.

关键词： Image segmentation Image edge detection Noise Fires Tail Interference Transforms Feature extraction Solids Optimization

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Anti-inflammatory and anabolic biphasic scaffold facilitates osteochondral tissue regeneration in osteoarthritic joints

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Journal of Materials Science & technology 2023年第25期156卷 20-31页

作者： Xiangbo Meng Ling Li Cuishan Huang Keda Shi Qingqiang Zeng Chunyi Wen Sibylle Grad Mauro Alini Ling Qin Xinluan Wang Translational Medicine R&D Center Institute of Biomedical and Health EngineeringShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China AO Research Institute Davos Clavadelerstrasse 8Davos Platz 7270Switzerland Musculoskeletal Research Laboratory Department of Orthopaedics & TraumatologyThe Chinese University of Hong KongHong Kong SAR 999077China CAS-HK Joint Lab of Biomaterials Joint Laboratory of Chinese Academic of Science and Hong Kong for BiomaterialsTranslational Medicine Research and Development CenterShenzhen Institutes of Advanced Technology of Chinese Academy of Sciences and The Chinese University of Hong KongChina Department of Biomedical Engineering Faculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong SAR 999077China

Osteochondral defects (OCD) are common but difficult to heal due to the low intrinsic repair capacity of cartilage and its complex hierarchical structure. In osteoarthritis (OA), OCD become more challenging to repair as both cartilage and subchondral bone regeneration are further impaired due to the arthritic environment. Numerous biomaterials have been developed and tested in osteochondral defects while ignoring the inflammatory environment. To target this challenging underlying pathophysiology, we designed and fabricated a biphasic porous and degradable scaffold incorporating anti-inflammatory and anabolic molecules by low-temperature rapid prototyping technology, and its effects on promoting osteochondral regeneration were evaluated using our well-established OA-OCD rabbit model. The biphasic porous scaffolds consisted of poly lactic-co-glycolic acid (PLGA) with kartogenin (KGN) for cartilage repair and PLGA and β-calcium phosphate (PLGA/β-TCP) with cinnamaldehyde (CIN) for subchondral bone repair. KGN is a molecule for promoting chondrogenesis and CIN is a phytomolecule for enhancing osteogenesis and alleviating inflammation. The biphasic scaffolds PLGA/KGN-PLGA/β-TCP/CIN (PK/PTC) with bio-mimic structure provided stable mechanical properties and exhibited excellent biocompatibility to support cell adhesion, proliferation, migration, and distribution. Furthermore, KGN and CIN within biphasic scaffolds could be released in a controlled and sustained mode, and the biphasic scaffold degraded slowly in vitro . Evaluating the repair of 16-weeks post-implantation into critically sized OA-OCD rabbit models revealed that the biphasic scaffold could promote subchondral bone and cartilage regeneration, as well as reverse subchondral osteosclerosis caused by inflammation in vivo . These findings support the utilization of the PK/PTC scaffold for osteochondral regeneration and provide a promising potential strategy for clinical application for the treatment of patients with

关键词： Biphasic scaffold Osteochondral defect Osteoarthritis Kartogenin Cinnamaldehyde Anti-inflammation

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