Advances in Computer and Engineering Technology Research最新文献_第4页

Thermal Characteristics of Surface Fire Spreading Front Under Ambient Wind 环境风下地表火蔓延前沿的热特性

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p476

Ziwei Wang, Kuibin Zhou, Xianzheng Ma, Mengxing Li

{"title":"Thermal Characteristics of Surface Fire Spreading Front Under Ambient Wind","authors":"Ziwei Wang, Kuibin Zhou, Xianzheng Ma, Mengxing Li","doi":"10.61935/acetr.2.1.2024.p476","DOIUrl":"https://doi.org/10.61935/acetr.2.1.2024.p476","url":null,"abstract":"Surface fire is the most common form of forest fire, primarily spreading along the forest land's surface and causing damage to nearby low-lying seedlings, shrubs, and the root systems of vegetation at its base. In actual forest fire scenarios, the occurrence of fires is often accompanied by environmental winds due to the typically complex terrain in forested areas. Forest vegetation is densely distributed, and when surface fires encounter obstacles such as tree trunks, the advancing fire front may interact with the tree trunks under the influence of environmental winds. This study focuses on understanding the thermal characteristics of the interaction between the advancing fire front and tree trunks in the presence of environmental winds. To investigate this interaction, temperature measurements are conducted on both sides of the obstacles and in the downstream region of the flame. Additionally, measurements of radiant heat flux are taken in the upper space above the experimental setup. By analyzing flame morphology parameters and experimental measurements, trends in thermal characteristic parameters with spatial position are identified. Regression formulas are developed to describe the temperature difference between the windward and leeward sides of the obstacles and the height above the experimental platform. Furthermore, the influence of flame climbing on radiant heat transfer in the upper space is discussed.","PeriodicalId":503577,"journal":{"name":"Advances in Computer and Engineering Technology Research","volume":" 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140687422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving Mechanical Properties of the Fe/epoxy Composite with a Novel Room Temperature-Thermal Curing Process 用新型室温-热固化工艺改善铁/环氧树脂复合材料的机械性能

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p94

Haoqing Yang, Bailiang Zhuang, Yongyue Liu, Jingkun Li

{"title":"Improving Mechanical Properties of the Fe/epoxy Composite with a Novel Room Temperature-Thermal Curing Process","authors":"Haoqing Yang, Bailiang Zhuang, Yongyue Liu, Jingkun Li","doi":"10.61935/acetr.2.1.2024.p94","DOIUrl":"https://doi.org/10.61935/acetr.2.1.2024.p94","url":null,"abstract":"A novel room temperature-thermal curing process was proposed to fabricate the Fe/epoxy composite easily and rapidly. The effect of thermal curing on the microstructure and mechanical properties were investigated. The results show that the thermal curing leads to the coarsening of Fe phase and the dense of Fe/epoxy interface. The average diameter of Fe increased from 36.03 μm to 64.91 μm after thermal curing, leading to the microstructure evolved from the island shape to the quasi reticular structure. The voids in the Fe phase and cracks along the phase boundary in the Fe/epoxy composite disappeared under the effect of diffusion. The tensile strength increased from 13.14 MPa to 53.72MPa and the elongation increased from 5.86% to 8.18% after thermal curing, with the improvement of 308.8% and 39.6%, respectively. The combination of brittle fracture in Fe and the crack elongation along the interface of Fe/epoxy improve both the strength and the plasticity of the Fe/epoxy composite. The Fe grains sustain fine with average size of 0.49 μm, contains abundant low-angle grain boundary (LAGBs) and deformed grains, but the density of dislocation and the value of texture are extremely low.","PeriodicalId":503577,"journal":{"name":"Advances in Computer and Engineering Technology Research","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140689197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent research progress and prospect of graphene-based microwave absorbing materials 石墨烯基微波吸收材料的最新研究进展与展望

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p100

Tianyi Zhang

{"title":"Recent research progress and prospect of graphene-based microwave absorbing materials","authors":"Tianyi Zhang","doi":"10.61935/acetr.2.1.2024.p100","DOIUrl":"https://doi.org/10.61935/acetr.2.1.2024.p100","url":null,"abstract":"With the increasing use of electronic devices, electromagnetic wave pollution has become a hot topic of concern and discussion, and microwave absorption materials play an important role in civil and defense military fields. Therefore, the development of electromagnetic wave absorption materials with low density, thin thickness, wide effective bandwidth, and strong wave absorption performance has become the focus and goal of researchers. Graphene shows a unique two-dimensional structure, lightweight, large specific surface area, high electrical conductivity, and high thermal conductivity, which make it a promising electromagnetic wave-absorbing material. However, pure graphene material cannot meet the needs of practical applications due to bad impedance matching. Therefore, graphene is usually combined with other materials (such as carbon materials, magnetic metal, polymer, ferrite, and ceramic) to improve its wave absorption properties. In this review, we summarize recent research progress of different types of graphene-based microwave absorbing materials. In addition, the challenges and prospects for improving the microwave absorption properties of graphene-based composites are presented, which will be useful for those working in related fields.","PeriodicalId":503577,"journal":{"name":"Advances in Computer and Engineering Technology Research","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140689366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Simulation Analysis of Soil Cutting Mechanism Based on CEL Algorithm 基于 CEL 算法的土壤切割机制数值模拟分析

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p336

Daofa Liu, Yang Liu, Kangjian Shao, Zhengpeng Pu, Rui Niu

引用次数: 0

Preparation of porous carbon fibres : A review 多孔碳纤维的制备：综述

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p286

Liping Liu, Huanting Li, Guohua Zhang, Jianbing Li

引用次数: 0

The Effect of Light Interventions on Nap Quality and Subjective Alertness 光干预对睡眠质量和主观警觉性的影响

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p314

Yuhao Wu, Yuanli Yang, Kai Liu, Min Cheng, Genxing Ren, Nianyu Zou, Ling Yu, Xiaoyang He

{"title":"The Effect of Light Interventions on Nap Quality and Subjective Alertness","authors":"Yuhao Wu, Yuanli Yang, Kai Liu, Min Cheng, Genxing Ren, Nianyu Zou, Ling Yu, Xiaoyang He","doi":"10.61935/acetr.2.1.2024.p314","DOIUrl":"https://doi.org/10.61935/acetr.2.1.2024.p314","url":null,"abstract":"The human eyes can perceive light even when napping during the day. In order to further investigate the effects of constant light exposure during napping on nap quality and subjective alertness, seven lighting conditions were designed in this paper, L0 (darkness), L1 (60 lx, 2800 k), L2 (300 lx, 2800 k), L3 (600 lx, 2800 k), L4 (60 lx, 5800 k), L5 (300 lx, 5800 k), L6 (600 lx, 5800 k). 12 participants were invited to perform a 30-minute light intervention nap experiment. Participants' Pittsburgh Sleep Quality Index (PSQI), Electroencephalographic (EEG), Karolinska Sleepiness Scale (KSS), skin temperature, and heart rate data were recorded. The results show that at L2 afternoon nap, θ band share is higher than other lighting conditions. At L6 afternoon nap, the δ band share was the lowest. High illuminance and low CCT significantly affected immediate subjective alertness during nap wakefulness, but reduced afternoon alertness was not related to light during nap. Although post-nap vigilance was lowest in L0 darkness, it rose rapidly to a maximum within 30 min of waking. From 0-25 min of napping, heart rate decreased significantly at L1 vs. L4, and skin temperature increased significantly at L2 vs. L5. None of the seven lighting conditions (L0-L6) inhibited participants' napping to a greater extent, and high illuminance and high colour temperature did not significantly increase the level of nap arousal (25-30 min).","PeriodicalId":503577,"journal":{"name":"Advances in Computer and Engineering Technology Research","volume":" 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140687841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the public safety protection distance of high-sulfur natural gas conditioning plant 高硫天然气调节厂公共安全防护距离研究

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p384

Linxia Zhang, Jing Li, Ming Wen, Song Zhao, Zhenxi Yang, Qingxiu Yu, Min Dai

引用次数: 0

Construction Technology of Steel Structures in Large Public Buildings 大型公共建筑钢结构施工技术

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p67

Tingyu Duan, Yun Chen, Rumin Lu

引用次数: 0

Steel structure design and analysis of a modern extreme sports center 现代极限运动中心的钢结构设计与分析

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p73

Wan Zhang, Pei Zhang, Jiwei Zhu

{"title":"Steel structure design and analysis of a modern extreme sports center","authors":"Wan Zhang, Pei Zhang, Jiwei Zhu","doi":"10.61935/acetr.2.1.2024.p73","DOIUrl":"https://doi.org/10.61935/acetr.2.1.2024.p73","url":null,"abstract":"A modern extreme sports center consists of a three-story main structure and ancillary structures. The overall architectural shape is simple and elegant. In order to ensure that the center has the high strength, earthquake resistance, corrosion resistance and other characteristics required for extreme sports venues, while taking into account comfort and aesthetics, the building structure adopts a steel frame structure system. This article uses the PKPM2021-V2.1.1.1 version software to conduct an overall calculation and analysis of this steel structure project, and checks the floor displacement calculated by the elastic method under the action of wind load or frequent earthquake standard values. The results show that the vertical structure of this structure is The deformation of the axial members meets the requirements of the code; the displacement ratio and inter-story displacement ratio of the structure under the action of specified horizontal seismic forces considering the influence of accidental eccentricity are checked, and the results show that the structure does not belong to torsional irregularity; the overturning resistance of the structure is checked and The shear-to-weight ratio was calculated and the results showed that the stability of the structure met the specification requirements. It can be seen from the above calculation and analysis that this structure can meet the specification requirements under various working conditions, and the structural design is safe and reliable.","PeriodicalId":503577,"journal":{"name":"Advances in Computer and Engineering Technology Research","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the Indoor Thermal Environment of Several Traditional Chinese Residential Buildings 中国几种传统住宅建筑的室内热环境研究

Advances in Computer and Engineering Technology Research Pub Date : 2024-04-18 DOI: 10.61935/acetr.2.1.2024.p432

Huanyi Wang, Li Zhou, Chunyan Liu

引用次数: 0