Pub Date : 2024-04-02DOI: 10.54254/2753-8818/34/20241186
Ke Zhang, Zhanqiang Ru, Peng Ding, Kunkun Hao, Tengfei Han, Chengao Wang, Yang Xiang
Due to the different divergence angles in two perpendicular directions and the presence of astigmatism in edge-emitting semiconductor lasers, the communication distance and efficiency of underwater communication are seriously affected. Therefore, based on the fact that the semiconductor laser beam belongs to Gaussian beam, satisfying Gaussian characteristics and collimating and expanding characteristics, a system composed of fast-axis collimation mirror and variable magnification beam expander is designed. Simulation is performed, and the final divergence angle is calculated. Experimental results show that the divergence angles of the fast axis and the slow axis have been compressed from 49 and 9, respectively, to 0.315 mrad and 0.180 mrad. Simulation demonstrates that the system can achieve propagation over a distance of 100m underwater and solve the alignment difficulty of APT. The designed structure is compact, easy for processing and adjustment, with high practical value, which helps to solve the problems of optical energy loss and low coupling efficiency in underwater long-distance communication.
{"title":"Variable magnification beam expander system based on semiconductor laser","authors":"Ke Zhang, Zhanqiang Ru, Peng Ding, Kunkun Hao, Tengfei Han, Chengao Wang, Yang Xiang","doi":"10.54254/2753-8818/34/20241186","DOIUrl":"https://doi.org/10.54254/2753-8818/34/20241186","url":null,"abstract":"Due to the different divergence angles in two perpendicular directions and the presence of astigmatism in edge-emitting semiconductor lasers, the communication distance and efficiency of underwater communication are seriously affected. Therefore, based on the fact that the semiconductor laser beam belongs to Gaussian beam, satisfying Gaussian characteristics and collimating and expanding characteristics, a system composed of fast-axis collimation mirror and variable magnification beam expander is designed. Simulation is performed, and the final divergence angle is calculated. Experimental results show that the divergence angles of the fast axis and the slow axis have been compressed from 49 and 9, respectively, to 0.315 mrad and 0.180 mrad. Simulation demonstrates that the system can achieve propagation over a distance of 100m underwater and solve the alignment difficulty of APT. The designed structure is compact, easy for processing and adjustment, with high practical value, which helps to solve the problems of optical energy loss and low coupling efficiency in underwater long-distance communication.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"22 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140754010","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/31/20240862
Xuyang Wang
This article delves into the inherent security of blockchain technology by evaluating the sophisticated techniques it employs. Key among these are mathematical hash functions, elliptic curve cryptography, and zero-knowledge proofs. Mathematical hash functions ensure that data stored is immutable; any slight alteration to the information will lead to a drastically different hash output, making any tampering evident. Elliptic curve cryptography provides a robust encryption mechanism, ensuring that data transactions remain confidential and secure. Meanwhile, zero-knowledge proofs enable one party to prove to another that they possess specific knowledge without revealing the actual information, further bolstering privacy. Owing to these technological underpinnings, blockchain not only excels in safeguarding sensitive data but also facilitates operations like verifying information authenticity. Moreover, in sectors like supply chain management, it offers capabilities for precise logistics positioning and traceability. Such applications underline blockchains potential as a tool for transparency and security in various industries. Through these features and mechanisms, blockchain stands as an exemplar of digital security in todays interconnected era.
{"title":"Blockchain security and applications: A comprehensive analysis from hash functions to consensus algorithms","authors":"Xuyang Wang","doi":"10.54254/2753-8818/31/20240862","DOIUrl":"https://doi.org/10.54254/2753-8818/31/20240862","url":null,"abstract":"This article delves into the inherent security of blockchain technology by evaluating the sophisticated techniques it employs. Key among these are mathematical hash functions, elliptic curve cryptography, and zero-knowledge proofs. Mathematical hash functions ensure that data stored is immutable; any slight alteration to the information will lead to a drastically different hash output, making any tampering evident. Elliptic curve cryptography provides a robust encryption mechanism, ensuring that data transactions remain confidential and secure. Meanwhile, zero-knowledge proofs enable one party to prove to another that they possess specific knowledge without revealing the actual information, further bolstering privacy. Owing to these technological underpinnings, blockchain not only excels in safeguarding sensitive data but also facilitates operations like verifying information authenticity. Moreover, in sectors like supply chain management, it offers capabilities for precise logistics positioning and traceability. Such applications underline blockchains potential as a tool for transparency and security in various industries. Through these features and mechanisms, blockchain stands as an exemplar of digital security in todays interconnected era.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"162 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140755021","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/31/20241037
Yifeng Wang
The article delves into the intricate relationship between symmetry and mathematical imaging, spanning various mathematical disciplines. Symmetry, a concept deeply ingrained in mathematics, manifests in art, nature, and physics, providing a powerful tool for understanding complex structures. The paper explores three types of symmetriesreflection, rotational, and translationalexemplified through concrete mathematical expressions. Evariste Galoiss Group Theory emerges as a pivotal tool, providing a formal framework to understand and classify symmetric operations, particularly in the roots of polynomial equations. Galois theory, a cornerstone of modern algebra, connects symmetries, permutations, and solvability of equations. Group theory finds practical applications in cryptography, physics, and coding theory. Sophus Lie extends group theory to continuous spaces with Lie Group Theory, offering a powerful framework for studying continuous symmetries. Lie groups find applications in robotics and control theory, streamlining the representation of transformations. Benoit Mandelbrots fractal geometry, introduced in the late 20th century, provides a mathematical framework for understanding complex, self-similar shapes. The applications of fractal geometry range from computer graphics to financial modeling. Symmetrys practical applications extend to data visualization and cryptography. The article concludes by emphasizing symmetrys foundational role in physics, chemistry, computer graphics, and beyond. A deeper understanding of symmetry not only enriches perspectives across scientific disciplines but also fosters interdisciplinary collaborations, unveiling hidden order and structure in the natural and designed world. The exploration of symmetry promises ongoing discoveries at the intersection of mathematics and diverse fields of study.
文章深入探讨了对称性与数学成像之间错综复杂的关系，涉及多个数学学科。对称是数学中根深蒂固的概念，它体现在艺术、自然和物理学中，为理解复杂结构提供了强有力的工具。本文通过具体的数学表达方式，探讨了反射、旋转和平移三种类型的对称。埃瓦里斯特-伽罗瓦群论（Evariste Galoiss Group Theory）是一个关键工具，它为理解和分类对称运算（尤其是多项式方程的根）提供了一个形式框架。伽罗瓦理论是现代代数的基石，它将对称性、排列和方程的可解性联系在一起。群论在密码学、物理学和编码理论中都有实际应用。索菲斯-李通过《李群理论》将群理论扩展到连续空间，为研究连续对称性提供了一个强大的框架。李群应用于机器人学和控制理论，简化了变换的表示。Benoit Mandelbrots 在 20 世纪末提出的分形几何学为理解复杂的自相似形状提供了一个数学框架。分形几何的应用范围从计算机制图到金融建模。对称性的实际应用扩展到数据可视化和密码学。文章最后强调了对称性在物理、化学、计算机制图等领域的基础性作用。加深对对称性的理解不仅能丰富各科学学科的视角，还能促进跨学科合作，揭示自然界和设计世界中隐藏的秩序和结构。对对称性的探索有望在数学与不同研究领域的交汇点上带来持续的发现。
{"title":"Symmetry and symmetric transformations in mathematical imaging","authors":"Yifeng Wang","doi":"10.54254/2753-8818/31/20241037","DOIUrl":"https://doi.org/10.54254/2753-8818/31/20241037","url":null,"abstract":"The article delves into the intricate relationship between symmetry and mathematical imaging, spanning various mathematical disciplines. Symmetry, a concept deeply ingrained in mathematics, manifests in art, nature, and physics, providing a powerful tool for understanding complex structures. The paper explores three types of symmetriesreflection, rotational, and translationalexemplified through concrete mathematical expressions. Evariste Galoiss Group Theory emerges as a pivotal tool, providing a formal framework to understand and classify symmetric operations, particularly in the roots of polynomial equations. Galois theory, a cornerstone of modern algebra, connects symmetries, permutations, and solvability of equations. Group theory finds practical applications in cryptography, physics, and coding theory. Sophus Lie extends group theory to continuous spaces with Lie Group Theory, offering a powerful framework for studying continuous symmetries. Lie groups find applications in robotics and control theory, streamlining the representation of transformations. Benoit Mandelbrots fractal geometry, introduced in the late 20th century, provides a mathematical framework for understanding complex, self-similar shapes. The applications of fractal geometry range from computer graphics to financial modeling. Symmetrys practical applications extend to data visualization and cryptography. The article concludes by emphasizing symmetrys foundational role in physics, chemistry, computer graphics, and beyond. A deeper understanding of symmetry not only enriches perspectives across scientific disciplines but also fosters interdisciplinary collaborations, unveiling hidden order and structure in the natural and designed world. The exploration of symmetry promises ongoing discoveries at the intersection of mathematics and diverse fields of study.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"231 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140754706","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/34/20241168
Xingyue Li, Jun Lu
This paper proposes a fault-tolerant frequent itemset mining algorithm (FT_HTlist) based on the linear table when the fault-tolerance is 1. The algorithm uses the method of concatenating 1 in the highest bit of the binary number of the known fault-tolerant frequent patterns to generate the candidate fault_tolerant patterns, called FT_Candidate. The algorithm is based on the data structure of the linear table for fault-tolerant frequent itemset mining. This method does not need recursion, so it reduces the consumption of mining space. At the same time, the paper proposed a deduplication algorithm to remove the support for repeat calculations. So the algorithm has a strong advantage in spatial performance. In addition, the algorithm only needs to mine two horizontal chains of the FT_Candidate, thus reducing the consumption of mining time. Finally, the paper shows the time performance and space performance of the proposed algorithm under sparse datasets and dense datasets. The results show that our algorithm has better mining time than other algorithms, and the horizontal chain reduces the memory occupation of the algorithm.
{"title":"FT_HTlist: A fault-tolerant frequent itemset mining algorithm based on the linear table","authors":"Xingyue Li, Jun Lu","doi":"10.54254/2753-8818/34/20241168","DOIUrl":"https://doi.org/10.54254/2753-8818/34/20241168","url":null,"abstract":"This paper proposes a fault-tolerant frequent itemset mining algorithm (FT_HTlist) based on the linear table when the fault-tolerance is 1. The algorithm uses the method of concatenating 1 in the highest bit of the binary number of the known fault-tolerant frequent patterns to generate the candidate fault_tolerant patterns, called FT_Candidate. The algorithm is based on the data structure of the linear table for fault-tolerant frequent itemset mining. This method does not need recursion, so it reduces the consumption of mining space. At the same time, the paper proposed a deduplication algorithm to remove the support for repeat calculations. So the algorithm has a strong advantage in spatial performance. In addition, the algorithm only needs to mine two horizontal chains of the FT_Candidate, thus reducing the consumption of mining time. Finally, the paper shows the time performance and space performance of the proposed algorithm under sparse datasets and dense datasets. The results show that our algorithm has better mining time than other algorithms, and the horizontal chain reduces the memory occupation of the algorithm.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"38 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140752027","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/34/20241146
Zhen Ren
This paper presents an in-depth exploration of the integration of Artificial Intelligence (AI) in theatre, with a focus on the creation of AI-generated stage plays. Utilizing ChatGPT's language model and deep learning algorithms, the research investigates AI's capability to generate compelling scripts, characters, and narratives for theatrical productions. The study employs a mixed-methods approach, analyzing existing AI-generated theatrical works and conducting experimental script creation using AI. The findings highlight both the potential and limitations of AI in theatre, emphasizing the need to balance AI-generated content with the intrinsic human qualities of theatrical performances. The paper contributes to the understanding of AI's impact on theatre and raises questions about audience engagement and authenticity in AI-generated content.
{"title":"The role of AI in theatre: Exploring the creation of AI-generated stage plays","authors":"Zhen Ren","doi":"10.54254/2753-8818/34/20241146","DOIUrl":"https://doi.org/10.54254/2753-8818/34/20241146","url":null,"abstract":"This paper presents an in-depth exploration of the integration of Artificial Intelligence (AI) in theatre, with a focus on the creation of AI-generated stage plays. Utilizing ChatGPT's language model and deep learning algorithms, the research investigates AI's capability to generate compelling scripts, characters, and narratives for theatrical productions. The study employs a mixed-methods approach, analyzing existing AI-generated theatrical works and conducting experimental script creation using AI. The findings highlight both the potential and limitations of AI in theatre, emphasizing the need to balance AI-generated content with the intrinsic human qualities of theatrical performances. The paper contributes to the understanding of AI's impact on theatre and raises questions about audience engagement and authenticity in AI-generated content.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"25 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140753794","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/34/20241138
Shaohan Qin
The temperature distribution of flames has long been a fascinating topic of study. To quantitatively analyze the temperature field of flames, traditional methods include infrared devices, thermocouples and thermometer. However, these conventional techniques provide only cross-sectional snapshots while lacking the capability to offer real-time 3D temperature field visualization. This paper proposed a different approach to measure the 3D temperature field with accurate data and details by applying the digital holography. First, based on digital holography and the equations of thermodynamics, we derived the equation between the phase difference and temperature. Then we built a transmission off-axis digital holographic microscopy in the experimental section to perform static and dynamic flame measurements. To calibrate the actual temperatures and test our theorys accuracy, we also took photographs of the flames as a standard reference using an infrared thermal imager. Finally, we obtained a quantitative 3D distribution of the temperature field and a qualitative dynamic process of 3D temperature field. Our results show that the temperature decreases from the center of the flame and follows a general pattern. The comparison with infrared imaging shows that digital holography offers an accurate measurement of the temperature.
{"title":"Capturing the 3D secrets of a flickering candle: Based on digital holographic microscopy","authors":"Shaohan Qin","doi":"10.54254/2753-8818/34/20241138","DOIUrl":"https://doi.org/10.54254/2753-8818/34/20241138","url":null,"abstract":"The temperature distribution of flames has long been a fascinating topic of study. To quantitatively analyze the temperature field of flames, traditional methods include infrared devices, thermocouples and thermometer. However, these conventional techniques provide only cross-sectional snapshots while lacking the capability to offer real-time 3D temperature field visualization. This paper proposed a different approach to measure the 3D temperature field with accurate data and details by applying the digital holography. First, based on digital holography and the equations of thermodynamics, we derived the equation between the phase difference and temperature. Then we built a transmission off-axis digital holographic microscopy in the experimental section to perform static and dynamic flame measurements. To calibrate the actual temperatures and test our theorys accuracy, we also took photographs of the flames as a standard reference using an infrared thermal imager. Finally, we obtained a quantitative 3D distribution of the temperature field and a qualitative dynamic process of 3D temperature field. Our results show that the temperature decreases from the center of the flame and follows a general pattern. The comparison with infrared imaging shows that digital holography offers an accurate measurement of the temperature.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"17 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140754850","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/34/20241162
Shixuan Li
In the contemporary digital landscape, architectural firms are increasingly reliant on sophisticated websites to showcase their portfolios and engage with clients. This paper delves into creating a user-centered website, emphasizing the critical role of front-end development in marrying aesthetics with functionality. Through a detailed examination, the study highlights prevailing trends in user interaction, visual design, and technological integration specific to architectural web platforms. In this paper, a prototype website was designed and implemented, utilizing HTML5, CSS3, and JavaScript, coupled with responsive design principles and interactive features. The development process involved using interactive keywords, a dynamic project gallery, and a responsive navigation menu, all facilitated by Java Server Pages (JSP) for back-end integration. This approach underscored the importance of user-centered design in web development for architectural firms. This study successfully integrated an intuitive user interface with advanced functionality, resulting in a web design that not only aesthetically aligns with the architectural firms brand identity but also enhances user engagement. Key results include an innovative scrolling gallery showcasing architectural projects, seamless integration of JSP for dynamic content management, and a notable improvement in website navigability and responsiveness, leading to a more interactive and satisfying user experience.
{"title":"Design and implementation of architectural websites based on Java: A case study of architectural firm website","authors":"Shixuan Li","doi":"10.54254/2753-8818/34/20241162","DOIUrl":"https://doi.org/10.54254/2753-8818/34/20241162","url":null,"abstract":"In the contemporary digital landscape, architectural firms are increasingly reliant on sophisticated websites to showcase their portfolios and engage with clients. This paper delves into creating a user-centered website, emphasizing the critical role of front-end development in marrying aesthetics with functionality. Through a detailed examination, the study highlights prevailing trends in user interaction, visual design, and technological integration specific to architectural web platforms. In this paper, a prototype website was designed and implemented, utilizing HTML5, CSS3, and JavaScript, coupled with responsive design principles and interactive features. The development process involved using interactive keywords, a dynamic project gallery, and a responsive navigation menu, all facilitated by Java Server Pages (JSP) for back-end integration. This approach underscored the importance of user-centered design in web development for architectural firms. This study successfully integrated an intuitive user interface with advanced functionality, resulting in a web design that not only aesthetically aligns with the architectural firms brand identity but also enhances user engagement. Key results include an innovative scrolling gallery showcasing architectural projects, seamless integration of JSP for dynamic content management, and a notable improvement in website navigability and responsiveness, leading to a more interactive and satisfying user experience.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"421 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140751448","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/31/20241079
Tianyun Deng
In the rapidly evolving landscape of global travel, understanding international flight prices has become pivotal for both travellers and airlines. This paper delves into the intricate web of factors influencing flight prices, utilizing a dataset from Ease My Trip spanning 50 days. Employing rigorous data processing techniques, including handling missing values and label encoding, the study explores correlations between various parameters such as cabin class, flight numbers, airlines, and duration, shedding light on pricing dynamics. The research employs linear regression, decision trees, and random forest models for prediction. The results showcase the significance of class, flight numbers, and duration on prices. Particularly, higher cabin classes correlate strongly with increased prices, offering vital insights for airlines to optimize revenue. The models predictive accuracies are commendable, with the random forest model standing out, explaining 98.9% of the variance. This study not only illuminates the complex interplay of factors steering international flight prices but also provides airlines with robust pricing strategies. The findings empower travellers to make informed decisions, promising a harmonious future for the aviation industry in an ever-changing global market.
{"title":"International flight fare prediction and analysis of factors impacting flight fare","authors":"Tianyun Deng","doi":"10.54254/2753-8818/31/20241079","DOIUrl":"https://doi.org/10.54254/2753-8818/31/20241079","url":null,"abstract":"In the rapidly evolving landscape of global travel, understanding international flight prices has become pivotal for both travellers and airlines. This paper delves into the intricate web of factors influencing flight prices, utilizing a dataset from Ease My Trip spanning 50 days. Employing rigorous data processing techniques, including handling missing values and label encoding, the study explores correlations between various parameters such as cabin class, flight numbers, airlines, and duration, shedding light on pricing dynamics. The research employs linear regression, decision trees, and random forest models for prediction. The results showcase the significance of class, flight numbers, and duration on prices. Particularly, higher cabin classes correlate strongly with increased prices, offering vital insights for airlines to optimize revenue. The models predictive accuracies are commendable, with the random forest model standing out, explaining 98.9% of the variance. This study not only illuminates the complex interplay of factors steering international flight prices but also provides airlines with robust pricing strategies. The findings empower travellers to make informed decisions, promising a harmonious future for the aviation industry in an ever-changing global market.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"43 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140752004","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/34/20241154
Zixi Chen
Illuminance is a measurement proportional to the intensity of light. When light is incident on a surface, the angle it makes with the normal vector of the surface plane is the angle of incidence. This paper focuses on an investigation of the relationship between the illuminance of reflected light from a glass block and the angle of incidence of the light on the block. By applying Fresnels coefficients, an expression for the illuminance of reflected light is derived in terms of the angle of incidence. The controlled measurements, including the illuminance of s-polarized and p-polarized light of a green laser (532nm), are directly measured to arrive at a set of calculated reflected illuminance at 10 different angles of incidence. The reflected illuminance is also experimentally measured with a light sensor at these angles. Upon the comparison between the two sets of data in this paper, a close resemblance of the shape of their curves is observed, both revealing an increasing reflected illuminance with a growing rate with respect to the increase of the angle of incidence. However, due to some expected systematic errors in the experiment, the calculated data has a generally higher reflected illuminance than the theoretical data at each angle of incidence. Overall, it is confirmed that as the angle of incidence increases, the illuminance of the reflected light increases with a growing rate.
照度是与光的强度成正比的测量值。当光线入射到一个表面时，它与表面平面的法向量所成的角度就是入射角。本文主要研究玻璃砖反射光的照度与玻璃砖上光线入射角之间的关系。通过应用菲涅尔系数，得出了以入射角为单位的反射光照度表达式。受控测量包括直接测量绿色激光（532nm）的 s 偏振光和 p 偏振光的照度，从而得出 10 个不同入射角的一组反射照度计算值。在这些角度下，还使用光传感器对反射照度进行了实验测量。本文对这两组数据进行比较后发现，它们的曲线形状非常相似，都显示出反射照度随着入射角度的增加而增加。不过，由于实验中存在一些预期的系统误差，在每个入射角上，计算数据的反射照度普遍高于理论数据。总之，可以肯定的是，随着入射角度的增加，反射光的照度也在不断增加。
{"title":"Investigation on angle of incidence and light reflectance","authors":"Zixi Chen","doi":"10.54254/2753-8818/34/20241154","DOIUrl":"https://doi.org/10.54254/2753-8818/34/20241154","url":null,"abstract":"Illuminance is a measurement proportional to the intensity of light. When light is incident on a surface, the angle it makes with the normal vector of the surface plane is the angle of incidence. This paper focuses on an investigation of the relationship between the illuminance of reflected light from a glass block and the angle of incidence of the light on the block. By applying Fresnels coefficients, an expression for the illuminance of reflected light is derived in terms of the angle of incidence. The controlled measurements, including the illuminance of s-polarized and p-polarized light of a green laser (532nm), are directly measured to arrive at a set of calculated reflected illuminance at 10 different angles of incidence. The reflected illuminance is also experimentally measured with a light sensor at these angles. Upon the comparison between the two sets of data in this paper, a close resemblance of the shape of their curves is observed, both revealing an increasing reflected illuminance with a growing rate with respect to the increase of the angle of incidence. However, due to some expected systematic errors in the experiment, the calculated data has a generally higher reflected illuminance than the theoretical data at each angle of incidence. Overall, it is confirmed that as the angle of incidence increases, the illuminance of the reflected light increases with a growing rate.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"44 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140754072","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}
Pub Date : 2024-04-02DOI: 10.54254/2753-8818/31/20240997
Xueqi Zhao
High-rise building is the trend of the future construction industry and the symbol of the continuous development of urbanization in China. However, safety accidents often occur during the construction of high-rise buildings, which bring people property losses, and sometimes even endanger the safety of life. Therefore, in order to effectively reduce the construction safety accident rate and improve the level of risk management, the construction of high-rise building safety risk focus on and research. This paper first analyzes the construction characteristics of high-rise buildings and accident types. According to the accident cause theory and hazard identification method, the major hazard sources in high-rise building construction are identified. Finally, this paper analyzes the construction of high-rise building risk factors. This paper can provide a theoretical basis for the construction of high-rise building safety risk assessment system, and provide a scientific and reliable risk management platform for the relevant units, so as to improve the safety awareness and risk management level of construction personnel.
{"title":"Research on high-rise building risk identification and safety risk factor analysis","authors":"Xueqi Zhao","doi":"10.54254/2753-8818/31/20240997","DOIUrl":"https://doi.org/10.54254/2753-8818/31/20240997","url":null,"abstract":"High-rise building is the trend of the future construction industry and the symbol of the continuous development of urbanization in China. However, safety accidents often occur during the construction of high-rise buildings, which bring people property losses, and sometimes even endanger the safety of life. Therefore, in order to effectively reduce the construction safety accident rate and improve the level of risk management, the construction of high-rise building safety risk focus on and research. This paper first analyzes the construction characteristics of high-rise buildings and accident types. According to the accident cause theory and hazard identification method, the major hazard sources in high-rise building construction are identified. Finally, this paper analyzes the construction of high-rise building risk factors. This paper can provide a theoretical basis for the construction of high-rise building safety risk assessment system, and provide a scientific and reliable risk management platform for the relevant units, so as to improve the safety awareness and risk management level of construction personnel.","PeriodicalId":489336,"journal":{"name":"Theoretical and Natural Science","volume":"99 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140754275","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}
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