bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison and analysis of gate dielectrics for SiC MOSFET
Authors: Sun Zhongheng
Published: November 2023

SiC MOSFET has been widely used for its characteristics of lower on-off resistance, less switching loss, higher working frequency, and high-temperature resistance. With the scale down of Moore's Law, better gate dielectrics should be selected to improve the breakdown voltage and reduce the gate-drain current to ensure a good working mode of MOSFETs. The traditional gate dielectric is SiO2 but their dielectric constant is low and the interface characteristics at the junction of SiO2 and SiC are poor so various emerging materials have been created to replace the traditional SiO2. Emerging gate dielectrics such as high-k gate dielectrics are receiving a lot of attention today, they can increase breakdown voltage and decrease gate-drain current while maintaining oxide thickness. Among many emerging gate dielectrics, Al2O3, HfO2, and HfSiON have been noticed due to their good characteristics and a lot of research on them. This paper will focus on the analysis of the characteristics of these three materials and their applications in MOSFET. Finally, after a detailed analysis of the three materials, they three materials are compared to understand their differences.
Comparative Study of Dielectric Thin Films for GaN HEMTs
Authors: Zhang Haoyang
Published: November 2023

As a typical representative of the third generation of semiconductor materials, attracts wide attention, wide band-gap semiconductor gallium nitride (GaN) has many advantages that silicon materials do not have, now it has been used to fabricate many devices. And as one of the heterojunctions MESFET, GaN HEMTs have many excellent properties, e.g., high electric breakdown field, large saturation velocity, and low ON-resistance (Ron), wide band gap, and high mobility. The material can be employed in several fields as a result of its good qualities. All these amazing properties make it an excellent semiconductor material for communication, radar detection, guidance and other civilian and military fields. Specifically, there are mobile phones, satellite television receivers, voltage converters and radar equipment, power adapter and car charging. However, in the high-power application, the current collapses affected the performance of the devices badly. The article will discuss both high dielectric constant and low dielectric, which are used for reducing the current collapse, and improve the devices performance.
Application of Theoretical Computational Simulations in Lithium Metal Batteries
Authors: Wu Yuchen
Published: November 2023

In the area of high energy density batteries, lithium metal has attracted a lot of interest as an electrode material. But since lithium is so reactive, lithium metal batteries frequently have safety problems like thermal runaway, particularly under conditions such as overcharging, over-discharging, high temperatures, and mechanical impact. These safety issues can lead to dangerous situations such as battery explosion and fire. Furthermore, lithium-metal batteries are prone to dendrite development during the cycling process, which can pierce the separator and result in internal short-circuits, shortening the battery's cycle life. Lithium-metal battery use is strongly constrained by these important problems. To overcome these challenges, researchers are exploring various strategies, such as developing new electrolytes and additives, designing new battery structures, and exploring new anode materials. Computational simulations have emerged as a powerful tool to aid in this research. This review summarizes the recent applications of computational simulations in lithium metal batteries. Specifically, molecular dynamics (MD) and first-principles calculations have been widely employed to study key issues such as interface reactions, ion transport, and dendrite formation in lithium batteries. Additionally, this review discusses recent research directions in new types of ion electrolytes that can effectively address the safety concerns of lithium batteries and increase energy density, while still facing challenges in interface resistance and conductivity. The discussion of potential avenues for future research that will be pursued finishes this paper. These possibilities include multiscale simulations, the creation and manufacturing of new electrolyte materials, and the functional modification of lithium-metal anode surfaces.
Analysis on safety management measures in civil engineering construction
Authors: Fei Fan
Published: November 2023

Building construction involves many complex processes such as high-altitude operations, mechanized equipment operations, and transportation and handling of building materials. Construction is a high-risk industry with frequent accidents. Therefore, some efficient and practical preventive measures need to be proposed immediately to reduce the occurrence of these accidents. This paper introduces different types of construction accidents and analyzes the reasons in combination with the theory of accident causation, to provide implementable ways to improve the safety performance of construction projects. Finally, a few precautions are offered in this paper to prevent the similar accidents from happening. The research results show that measures such as improving the safety evaluation system, strengthening the operating environment, strictly controlling the installation and dismantling links, enhancing the lighting conditions at night, and controlling minor accidents can effectively prevent the occurrence of construction safety accidents.
Research on building design and construction application based on BIM technology
Authors: Huang Qingfeng
Published: November 2023

Building Information model (BIM) is a kind of digital building information model. Through BIM technology, building information can be presented to each department of building engineering in the form of three dimensional (3D). In traditional building information management, design part and construction part are independent of each other. There is no unified standard and information management system between the two sides. As a result, the construction information between the design department and the construction department cannot be shared in time, and both sides are prone to make mistakes in the negotiation of construction issues. These mistakes not only delay the construction, but also increase the construction cost. With the development of BIM technology, each department of building can understand the details of the building more intuitively through the building information model. Designers and builders can communicate effectively in construction projects and coordinate problems in the construction process.
Research on the problems and strategies of sponge city construction in China
Authors: Zhu Jing
Published: November 2023

With the continuous progress of China's urbanization, problems such as rainwater runoff pollution, flood disaster and water resource shortage have become increasingly prominent. Sponge city is a good way to solve urban waterlogging and improve the water ecological environment. This paper first describes the water resources issues encountered by Chinese cities, and then it explains the significance of sponge city building, in order to further apply the idea of water ecological civilization construction and promote the construction of sponge city. China's creation of sponge cities is still in its early stages when compared to Western nations. In this paper, the effectiveness of the construction of Jiaozuo sponge city is examined together with the research state of sponge city construction in China. Finally, this paper discusses some problems in the process of sponge city construction and puts forward some concrete suggestions. It is expected to play a reference role in promoting the development of sponge city and improving the construction of sponge city in China.
Latest Advances in Perovskite LED Research
Authors: Ma Shuyang
Published: November 2023

In recent years, there is a growing need for a better performance, lower cost, brighter and longer life luminous and display technology. Perovskite materials have attracted widespread attention because of their excellent performance in optoelectronic devices. For example, it has high carrier mobility, small emission line width, bandgap tunability, and strong photoluminescence quantum yield (PLQY). As a result, perovskite light-emitting diodes (LEDs) have developed rapidly over the past few years. This article starts with the basic parameters of perovskite LED (PeLED) devices and describes the basic structure and working principle of perovskite LED devices. And it mainly reviews the development history of 3D perovskite LEDs and states the latest progress in the research of perovskite quantum dots (QDs) and hole transport layers (HTLs) and electron transport layers (ETLs) in perovskite LED devices. Finally, the problems restricting the development of perovskite LEDs are summarized. This article offers a comprehensive understanding of perovskite LED devices and their future research directions.
A Study on the Ephemerality of Public Space in Traditional Village from a Cognitive Perspective
Authors: LI Yiting , JIANG Peijia , LI Ziwei
Published: November 2023

Based on the design method of urban and rural planning, we combine the theories and methods of geography and habitat environment disciplines, and introduce the "schema" theory of psychology to construct the cognitive maps of residents and tourists. Using Zishan Village in Hanwang Town, Xuzhou City as an empirical case, we extracted regional characteristics and explored the cognitive evaluation of residents and tourists, and analyzed the research data in a qualitative and quantitative way. The satellite tracking 3D track function was used to record the travel routes and shooting points of the sample population, and the collected data were overlaid to analyze the overlap of the routes and shooting points, so as to derive the interest points of residents and tourists. The data were summarized in tabular form and imported into SPSS for cross-tabulation analysis and chi-square test. Questionnaire interviews were used to collect the personal feelings of residents and tourists from a qualitative perspective. The cognitive maps of residents and tourists were constructed and their differences were explored to visualize the regional characteristics of traditional village public space and to identify effective landscape design and public space construction, which can provide reference and basis for village construction.
Evolution, Challenges and Applications of Modern MOSFETs
Authors: Wu Yanming
Published: November 2023

As technology scales down to the nanoscale regime, MOSFETs are widely used in various applications today, which serve as key components in power supplies, amplifiers, digital circuits, and microprocessors. Their ability to control and switch high currents makes them essential in electronic devices, ranging from smartphones and laptops to industrial machinery and electric vehicles. However, traditional MOSFET designs face significant limitations due to quantum effects, increased variability, and many other issues. They are prone to overheating, which limits their power handling capability, and their switching speeds are relatively slow, leading to inefficiencies in high-frequency circuits. Furthermore, traditional MOSFETs suffer from voltage limitations and require complex driver circuits, restricting their use in certain high-voltage applications. This paper provides a focused exploration of the challenges and opportunities in designing nanoscale MOSFETs, which starts from providing a comprehensive overview of the history, differences, dilemmas, and applications of modern MOSFETs. By examining the evolution of MOSFET technology, discussing the challenges faced by designers, and exploring the wide range of applications, which aims to inspire further research, innovation, and advancements in this critical field of electronics.
A Review on Durability Analysis of FRP Bars based on Different Factors in Alkaline Environment
Authors: Zhou Zhenyao
Published: November 2023

The primary issue with concrete structures is steel bar corrosion. Therefore, FRP (Fiber Reinforced Polymer) bars are often to substitute steel bars to tackle the issue of concrete swelling and cracking brought about by steel corrosion. FRP bars feature improved corrosion resistance, a stronger strength-to-quality ratio, and better fatigue resistance. However, the alkaline environment will affect the long-term strength and durability of FRP, according to certain research, which will cause the FRP bars mechanical characteristics to deteriorate. In this paper, the properties of FRP bars under alkaline conditions are reviewed, considering the harsh external environment and physical properties of FRP bars. Comprehensive investigation concludes that lowering the PH value of concrete and changing the kind of fiber material may considerably increase the endurance of FRP in alkaline environments. By demonstrating the microscopic breakdown process of FRP bars in an alkaline conditions using scanning electron microscopy. The Arrhenius acceleration theory was used to construct the present model for forecasting the long-term mechanical behavior of FRP bars, which shows how this material degrades under alkaline circumstances. This study may be utilized as a reference for FRP bars used in alkaline environments in terms of durability studies.
A scientometric review of structural topology optimization
Authors: Guo Qizhou
Published: November 2023

Structural topology optimization seeks to identify the most efficient way to allocate material within a given domain to achieve a specific design objective. This research area has broad applications in various fields, including mechanical design and other physical disciplines. Over the past two decades, a great variety of applications and diverse research papers on structural topology optimization have been undertaken and published in the last two decades to highlight its acceptance and advantages. This paper presents a scientometric analysis of 5713 papers published between 2000 and 2022 to provide an overview and visualization of the development of structural topology optimization. While there are numerous approaches to topology optimization, this study focuses on presenting a quantitative analysis of the most popular and influential methods. The method used in this paper involved data collection and analysis through CiteSpace, one of the most popular software tools in this field. This paper provides a comprehensive overview of the latest developments of research in structural topology optimization and identifies key directions for future research. The analysis of the top 10 co-cited articles revealed four main approaches that have been developed for structural topology optimization.
Research on the application of prefabricated green steel structure in public buildings
Authors: Sun Baizheng
Published: November 2023

The construction industry is a pillar industry to improve people's quality of life and promote social and economic development. It has the characteristics of high energy consumption and high pollution, which deviates from the requirements of green development advocated by people at present. In view of healthy long-term development, the building industry needs to take effective measures to reduce energy use. The components used in prefabricated steel construction projects are mainly processed in factory batches. After transportation to the construction site, they only need to be assembled in accordance with standard specifications and processes, which can shorten the construction period, reduce the generation of construction waste, and fully meet the development requirements of energy conservation and emission reduction. Therefore, prefabricated green steel structure has been widely used in the construction of modern public buildings. Firstly, this paper summarizes and analyses the development status and main types of prefabricated green steel structure. The practical application in public building construction is also discussed. It is hoped that the results can provide a valuable reference for the construction of similar projects.
Identification and control of prestress loss of concrete members
Authors: Chang Zhongyuan
Published: November 2023

Prestressing technology is widely used in buildings, Bridges and other infrastructures, but the problem of prestress loss has been a hinder for the use and maintenance of these facilities. so how to find the existence of prestress loss in time and accurately measure the existing effective prestress is a hot topic. This paper focuses on the development of prestress loss identification methods. They can be classified according to the technical route of direct measurement and indirect calculation. A large number of studies have shown that prestress loss often occurs in the construction stage of the structure. In order to better avoid the problems that may occur during this period, intelligent tensioning and grouting technology has been proposed and is constantly developing, serving various projects. By summarizing the advantages and disadvantages of existing studies, analysis of the means of prestress loss limitation can be formed, looking forward to peek the future development trend of intelligent control methods.
Molecular machine-based nanomaterials: Recent progress and prospects
Authors: Cheng Zhangqing
Published: November 2023

Molecular machines are chemical molecules (man-made or natural) which display triggered reversible conformational changes by external stimuli like pH and temperature, followed by observable changes. This property of controllable and coherent motion at molecular level can be observed through the synthesis of macroscopic materials from self-assembly of molecular machines. Due to these properties, molecular machine-based nanomaterials display a wide range of unique characteristics and various useful applications in biomedicine, energy, environmental engineering, etc. This paper reviews recent research articles on some potential applications including biosensing, therapeutics (with a focus on drug delivery system) and catalysis based on MMs and their composites to assess the current practicality of the technology. Although most materials are not ready for real-life applications yet and there is a lack of deep understanding of the efficacy, these nanomaterials display a wide range of very useful and unique characteristics and present a brand-new direction for tackling current challenges.
Carbon fiber comparison to traditional materials for the automotive industry
Authors: Zhao Jason Zijie
Published: November 2023

As automotive technology continues to advance; the industry is confronted with the ongoing challenge of improving car performance while maintaining safety and structural integrity. This long-standing challenge in the field of automotive technology may soon find a solution through the emergence of carbon fiber composite materials, potentially ushering in a new era of material dominance. Carbon fiber composites possess exceptional strength and extreme stiffness compared to metals, yet they exhibit a much lower density 80% less than steel. This unique combination of properties makes carbon fiber a possible alternative for automobile materials. Moreover, carbon fiber is a more sustainable material compared to traditional metals, offering environmental benefits. It also enables more efficient manufacturing techniques, contributing to reduced energy consumption and waste production. The present study investigates the feasibility of utilizing carbon fiber as the primary material for future automobiles, exploring the intricate aspects of its manufacturing process and examining the wide range of applications associated with this new material. By investigating carbon fiber's potential, the automotive industry could unlock many new opportunities for improved vehicle performance, fuel efficiency, and sustainability.
Current status and prospects of flexible solar cells
Authors: Xie Yiming
Published: November 2023

With the increasing global demand for clean energy, solar cells, as a renewable and pollution-free clean energy source, have attracted much attention. In the past, solar cells have always used rigid materials as substrates. However, this rigid solar panel is not only bulky and limited in layout, but also susceptible to external impact and damage, which is not conducive to its application in various scenarios. Flexible solar cells, developed from rigid solar cells, have the advantages of light weight, small size, high safety, and strong adaptability, gradually becoming the development trend of solar cells. The research and development of flexible solar cells benefit from the rapid development of materials. In recent years, the emergence of various new materials and preparation technologies, such as carbon fibers, polymers, organic materials, and nanostructures, has provided a better foundation for the preparation of flexible batteries. At the same time, flexible batteries can also be processed through printing, spraying and other processing methods, improving manufacturing efficiency. In addition, the demand for wearable devices, smart homes and other emerging scenarios in society has also accelerated the research and application of flexible solar cells, providing broad application prospects for their development. However, its cost is usually higher than that of rigid solar cells, and market regulation under new categories requires time to adapt. The development of flexible solar cells is benign, but it requires the market to test its standardization.
Ongoing advancement in examining si-based anode materials for lithium ion batteries
Authors: Liao Xiangyu
Published: November 2023

There is a developing interest in Lithium-ion batteries (LIBs) with more prominent energy thickness, and further developed cycling soundness has become progressively critical because of the rising fame of electric vehicles and convenient gadgets; efficient energy storage and utilization are vital for meeting these demands. Silicon-based materials offer a promising solution with a high hypothetical explicit limit, low lithium inclusion potential, predominance, and eco-agreeableness. Silicon has emerged as a formidable contender in advanced energy storage technology. Silicon-based materials are perceived as a highly promising option for the anode material in the up-and-coming age of LIBs. Despite the potential benefits of silicon-based anode materials, some limitations currently restrict their commercial use. Its significant volume changes during Li insertion/extraction resulting poor cycling performance and rapid electrochemical decay. This article summarizes current research on this issue. It analyzes silicon anode materials from two perspectives: different dimensional silicon nanostructures (zero-, one-, two-, and three-dimensional) and silicon-based composite materials. Like Carbon/Silicon composite materials. This article provides a comprehensive understanding of silicon anode materials' research status and a vital reference for optimizing their cycling abilities and improving their commercial value and serviceable range.
A review of RFID Tag based on TFT
Authors: Jialong Wen
Published: November 2023

Radiofrequency identification is a non-contact wireless identification technology that uses wireless radio frequency signals for specific target identification or data transmission and has broad application prospects in the period of the Internet of Things. A thin film transistor is a kind of field-effect transistor which is widely applied in the field of flat panel display, but it can also be applied to RFID technology. This paper first introduces the development history of RFID technology and explains the working principle, then briefly describes the structure and characteristics of TFT. After that, the article summarizes the research progress of RFID tags based on different kinds of TFTs at home and abroad by literature review. It is found that RFID tags based on metal oxide thin film transistors have the most advantages, such as better electrical properties, lower cost, good flexibility, high transparency, etc., which meet the need of people in certain application scenarios. Finally, the application prospects of this tag are presented.
Performance and modification of novel nanomaterials for the anode of lithium-ion batteries
Authors: Ji Haoxuan
Published: November 2023

Due to the burning of fossil energy which is a non-renewable nature resource, it has caused many environmental problems, then the world began to face energy shortage and environmental problems. In order to solve these two problems, people have started to develop new energy sources and vigorously research new methods for energys efficient storage and utilization. The Li-ion battery is a research priority because it has great properties such as high specific energy and environmental friendliness, but they still need further performance improvement before it can be put into use. In this paper, the lithium-ion batterys anode is selected as the research object to investigate the performance of carbon-based nanomaterials, silicon-based nanomaterials, and metal-based nanomaterials, and to study the actual performance and modification methods to analyze the application prospects of the materials. Improving the Li-ion battery cathode material performance can significantly improve the batterys capacity and performance stability, speed up the process of putting lithium-ion batteries into use, and improve people's ability to store and use energy to cope with the energy crisis.
Advanced development of hydrogen engines for diverse transportation
Authors: Zhang Yuqi
Published: November 2023

The hazard of conventional fossil fuels that transportation relies on nowadays has urged the scientific community to speed up the process of diminishing the pollutants caused by daily transportation and finding an opulent energy source for its superstition. Renewable resources and hydrogen are deemed as the next generation resource. However, hydrogen is the ultimate choice for transportation for its excellent performance both in the fields of environmental protection and energy. In this article, a study on the global production of hydrogen is performed, delving into the present conditions of the hydrogen industry. The principles referred to when choosing hydrogen to be an energy source for various transportation are discussed, and a comparison between conventional fuel engines and hydrogen fuel engines is made. The existing technical problems concerning the application of hydrogen engines or hydrogen fuel cells are reviewed. Combined with the usage of technologies on hydrogen, an envisage of future clean transportation is demonstrated.
Research on antenna design based on low-resolution digital-to-analog converters
Authors: Yang Yue
Published: November 2023

In the ever-evolving field of communication, the optimization of antenna design and structure has garnered significant attention from professionals. Effective antenna design plays a crucial role in ensuring reliable and efficient communication systems. However, the challenge lies in overcoming the limitations imposed by current low-resolution digital-to-analog converters (DACs) on the attainment of highly efficient antenna structures. This study aims to address this issue by exploring the potential of low-resolution DACs for improving the structural design of antennas. To achieve this, we propose gradient-based and low-complexity heuristic solutions that leverage global optimization techniques. By optimizing the antenna structure using these innovative approaches, we aim to enhance the overall performance and efficiency of communication systems. The significance of this research lies in its potential to revolutionize antenna design by overcoming the constraints of low-resolution DACs. By incorporating Sigma-Delta modulation in the filter design, we anticipate significant improvements in performance when the number of transmitting antennas is comparable to the number of users. Furthermore, our investigation reveals that the application of Compressed Sensing techniques yields results that closely align with the optimal solution in scenarios where the number of transmitting antennas greatly exceeds the number of users.
Synthesis and modification of carbon nanotubes
Authors: Qi Jia
Published: November 2023

Carbon nanotubes (CNTs) are mono-dimensional carbon nanomaterials with remarkable properties. Since their discovery by Iijima, they have been found to exhibit remarkable properties in mechanical, physical, and chemical fields. However, due to their harsh synthesis conditions and limited inherent properties, the large-scale application of CNTs is challenging. With the aim of providing a reference for further research and development of carbon nanotubes, this review summarizes the currently reported methods for synthesizing carbon nanotubes, focusing on the cost-effective arc-discharge method and chemical vapor deposition (CVD) which produce high-quality carbon nanotubes with stable performance. In addition, two different directions of CNT modifications are presented, namely, CNT filling technology and CNT solubility modification. Among them, the CNT filling technology can use CNTs as templates for nanodevice fabrication and test tubes for microscopic reactions. Meanwhile, solubility modification of CNTs is the key strategy to overcome its inherent limitations and expand their application fields.
The application of supramolecular chemistry in biomedicine
Authors: Wang Chenhao
Published: November 2023

Nowadays, with the development of the supramolecular chemistry theory, more and more products based on Supramolecular chemistry are applied in people's life. Due to the good hydrophobic/hydrophilic structure, biocompatibility, spontaneous self-assembly and other characteristics of supermolecules, these applications are particularly prominent in the field of biomedicine. In this paper, the research status, development trend and potential problems of supermolecular materials in the field of biomedicine will be reviewed from the aspects of peptide/polyamino acid self-assembled nanomaterials for cancer diagnosis and treatment and soybean protein drug carriers. The early diagnosis and treatment of tumors and the delivery of drugs have always been challenges in the medical field. However, with the dynamic, reversible and controllable characteristics of supermolecules, as well as their excellent biocompatibility, sequence controllability and high biological activity, people can develop imaging systems and drug carriers based on supermolecule theory to improve the diagnostic ability of certain diseases and the biological accessibility of certain drugs.
The influence and mechanism of transition metal ions dissolution in lithium-ion batteries
Authors: Zhang Zhaohua
Published: November 2023

Lithium-ion battery (LIB) has been extensively applied in the field of power vehicles and energy storage. Extending the service life is the research priority. Transition metal (TM) ions dissolved from the cathode are considered a key factor affecting battery electrochemical properties. To reveal comprehensively the mechanisms of influence of TM ions at the full-cell level, this paper reviews the recent efforts of the exploration of TM ions affecting lithium-ion batteries using conventional metal oxide as cathode matched with graphite, silicon-containing, or Li metal as anode, respectively. The existence of TM ions in electrolyte or solid electrolyte interphase (SEI) films can change the morphology, the structure as well as the component concentration of the SEI films and accelerate the side reaction as a catalyst. In the comparison of different TM ions, the failure mechanism could be diverse, and it is proved that Mn ion is the most detrimental and extensively studied. However, in some special lithium-ion battery systems, TM ions are even in favour of electrochemical performance by forming LiF-rich SEI components.
Advancements in anode and cathode nanomaterials for high-performance Li-ion batteries
Authors: Li Lilan
Published: November 2023

Commercially, lithium-ion batteries are the most popular batteries for electric devices, while energy density and stability have become more important for electric vehicles. Therefore, there is an increased interest in producing advanced lithium-ion batteries with a greater range of electric storage capability and improved electron transfer efficiency. Over the past few years, nanotechnology has been widely applied to enhance the physical properties of materials through the application of surface treatments or the modification of nanostructures. The significant development potential of nanotechnic applications for lithium-ion batteries is the reason for this discussion. There have been several advancements in graphene, carbon nanotubes, silicon-based and other metal-based anodes, lithium cobalt oxide, lithium iron phosphate, and nickel-based cathodes, their fabrication processes and understanding of mechanisms, as well as trends for further improvement of those previously discovered. These advancements have led to the development of batteries with greater capacity and greater performance, better stability, quicker charging times, and a longer cycle life.
Research on the recycling methods for lithium-ion batteries in the electric vehicle industry
Authors: Wang Tianyu
Published: November 2023

The accelerating threat of climate change has spotlighted the imperative for greener transportation solutions, resulting in the swift transition to electric vehicles (EVs). An essential aspect of this transformation is the integration of lithium-ion batteries as energy storage. However, the subsequent challenge of managing end-of-life batteries has underscored the urgency for efficient recycling strategies to mitigate environmental risks and economic losses. By researching current valuable articles, this article gives an overview of the current challenges in recycling lithium-ion batteries, including issues with electrode materials, ageing, and safety concerns, as well as various recycling techniques explored in response to these challenges, such as pyrometallurgical and hydrometallurgical processes, direct recycling, and emerging biological recycling methods.
Research on landscape design of Chinese museumsTaking Suzhou museum as an example
Authors: Zhou Yuhang
Published: November 2023

Museum design needs to consider how art and architecture can be combined to create a unique, aesthetically pleasing and attractive space. In the new Chinese pattern, a point is often used as the axis, and the elements, color matching and space proportion on both sides are symmetrical forms, showing a stable and dignified symmetry aesthetic feeling. The new Chinese style needs to be integrated into the landscape design, because the color requirements of the new Chinese style reflect Chinese characteristics. At the same time, it is combined with modern landscape materials, and the classical "national color" is perfectly integrated with modern materials. Therefore, this paper investigates the design of several museums and new Chinese style buildings, summarizes the environmental factors, functional factors, artistic factors and technical factors, and believes that environmental factors, artistic factors and technical factors are important, while functional factors are not. Finally, taking the Suzhou Museum as an example, this paper discusses the importance of several factors to provide help and reference for the subsequent museum design. The factors that should be considered in the design of the Suzhou Museum include environment, function, art and technology. The factors to be considered in the design of buildings include Functional requirements, building safety, building environment, building materials, building shapes, building costs, and building regulations.
Methods for improving the stability of perovskite materials and their conversion efficiency
Authors: Li Zhuoxuan , Yin Lingfei , Zong Xiaoxi
Published: November 2023

he research on perovskite thin film solar cells has made great progress in recent years and is believed to be a material with enormous potential for development. However, problems like relatively poor stability, environmental unfriendliness and low large-area photoelectric conversion efficiency remain to solve. Its large-scale production is still a long way off. This study introduces the recent progress of the perovskite materials for perovskite solar cells and reviews the three ways of improving the stability and photoelectric conversion efficiency of perovskite materials for solar cells, including dye sensitization, doping and graphene oxidation. Diverse dyes for sensitization of perovskite materials are listed, and their mechanics are briefly introduced. The principles of how doping and graphene oxidation improve the stability and photoelectric conversion efficiency of perovskite materials are also described in this manuscript. Finally, based on those methods, suggestions for the future development of perovskite materials for solar cells are provided.
The development and application of CMOS image sensor
Authors: Li Gongchen , Zhao Fangji , Wang Zicheng , Chen Zhe
Published: November 2023

This paper focuses on the development of Complementary metal-oxide semiconductor (CMOS) image sensor and its applications in aerospace, medical and automotive fields. Firstly, the representative events in history and the contributions of some companies to CMOS image sensor are described. Subsequently, some characteristics of CMOS image sensor are analyzed in the image field involved. In order to evaluate the performance of CMOS image sensor, single even effect and electronic endoscope structures are analyzed and active and passive range finder experiments are carried out. The results show that the imaging based on CMOS sensor can fully meet the requirements of imaging applications in many fields.
Solar photovoltaics: Silicon cell principles, technology implementation, and future development
Authors: Guo Shuai , Xiong Haozhong , Xin Guanlin , Shan Yifeng
Published: November 2023

Solar energy is one of the most well-known renewable energies in the world, which can be directly used as heating source or can be converted to other sources of energy, like electricity. In this paper, the main technology of solar energy named solar photovoltaic will be discussed. Solar Photovoltaic utilizes the property of semiconductor, talking mainly about silicon in this project, to realize this technology. This is widely used as crystalline PV cells, thin film PV, and other PV technology (such as multi-junction PV cells and concentrating systems). The cost of power from PV plants has decreased globally around years but it still needs to reduce capital cost for countries lacking sunlight. In comparison to other renewable or non-renewable energy producing methods, PV has probably a smaller environmental effect. In normal operation, PV emits no gaseous or liquid contaminations and no radioactive substances, but people still need to strengthen the recycle of old silicon cells to avoid the leakage of toxic substances. The global photovoltaic market has increased rapidly in recent years, and it will also keep this increase in the future. The purpose of this project is giving a basic understanding of photovoltaics in these areas.
Covid 19 Pandemic: The Inspiration to Start Online Business
Authors: Zaitun Zaitun , Juliyanto Faishal
Published: November 2023

The pandemic of covid-19 which was announced as a disaster by President Joko Widodo on March 2, 2020 has been shaking the economic scope of Indonesia. More department stores and even big shopping centers forcibly closed due to the policy of social distancing and local lockdown. As the consequence, more people lost their jobs which worsening the economic sector. Besides this sadly fact, more people started to utilize social media to promote products. The changing of people’s behaviors who previously used to shop offline to online sites became the main reason for businesses owners to take this opportunity to keep their businesses survive. This new life style also inspired many people to start online trades to earn their livings. The objective of this descriptive paper was to present how one of English students of Faculty of Education, Muhammadiyah University of Jakarta, who joined entrepreneur class was being inspired by the situation of covid-19 to start online business. This study used both observation and unstructured interview as the tools in collecting the data. The results of the study presented three answers of the research questions, namely: first, the student was inspired by the rapid spreading of online business and most business owners who promoted various products online. Second, in the preparation, he determined a label as his virtual store name, designing logo, creating ‘thank you’ card and buying good quality materials with low prices for the packaging. Third, after the first three months becoming reseller of women’s stuffs such as body treatment, bags, shoes, cosmetics and various accessories, up to end of September, more than hundred goods had been sold and he could earn around one million of net-profit every month. Even more, currently, he has been saving money as the capital, stocking quite big number of stuffs and planning to have one physical store to run the business offline after the pandemic is over.
The Determinants of Profitability In Processed Food Industry In Indonesia
Authors: Guo Ren Ren
Published: November 2023

The main purpose of this study is to explore the impact of working capital, sales growth, debt to equity, and operating efficiency ratio on the profitability of processed food industry in Indonesia. The profitability in this study is measured through return on equity (ROE). The research is a quantitative research method by using secondary data for seventeen processed food companies listed in Bursa Efek Indonesia from 2013 until 2019.The research shows:1) working capital has significant positive effect on processed food company’s profitability; 2) Sales growth has significant negative effect on processed food company’s profitability; 3) the debt to equity or leverage does not have any effect on processed food company’s profitability, 4) operating efficiency ratio has significant negative effect on processed food company’s profitability.
Islamic Economic Methodology Aproach to Achieve Economic Equity: Epistemological Study
Authors: Azlina Nur , Maesarach R. Melda , Said Muhammad
Published: November 2023

Economic policies based on capitalism and socialism have proven to have failed to create a just economy. As a result of adhering to capitalist and socialist ideologies, macroeconomic imbalances and national instability occur. The welfare and prosperity of the people does not depend on production alone, but also on its proper distribution. Wealth in a country can be produced in large quantities, but if its distribution is not based on true and fair principles, then the country will not be able to achieve prosperity. This article aims to find out how the methodology of Islamic economics realizes equity and falah. This research uses descriptive qualitative research method with a literature review approach. Data collection techniques, with literature, from several sources obtained that are relevant to the theme. Books, journals, websites, and others. The data analysis technique is descriptive qualitative, describing the study of Islamic economic epistemology that can help realize economic equity. The results in this study BMT is a financial institutional system that is able to reform the conventional economic system and bring economic justice and equitable distribution with practical provisions through syar'i arrangements in collecting and distributing through wadi'ah, mudharabah, musyarakah, murabahah, salam, istishna transactions. , ijarah, and qardh. The implementation of Islamic social finance in Indonesia can be seen through the existence of various financial institutions that provide financial services by involving Islamic social funds such as Baznas (National Amil Zakat Agency), BWI (Indonesian Waqf Board) and other institutions with the aim of embracing the middle, small, and medium-sized micro communities.
Pancasila Implementation Strategy as Dar al-ahdi wa al-syahadah
Authors: Murod Ma'mun , Patrianti Tria , Andriyani Lusi , Usni Usni , Gunanto Djoni
Published: November 2023

Pancasila has become an agreement as to the final form of state philosophy or ideology. Pancasila is considered a "middle way". Muhammadiyah, as an important actor in the process of formulating Pancasila, feels it is important to maintain Pancasila as the basis of the state. At the 47th Muhammadiyah congress in Makassar, 2015, Muhammadiyah decided to make Pancasila as Dār Al-Ahdi Wa Al-Syahādah. This paper examines the Pancasila Implementation Strategy as Dār Al-Ahdi Wa Al-Syahādah to provide solutions to the ideological and practical problems of Pancasila. There are many challenges facing Pancasila. Some are ideological and some are practical. The ideological challenges are relatively reduced as a result of the commitment of Islamic organizations such as Muhammadiyah to Pancasila. On the other hand, the practical challenges related to the implementation of Pancasila are even greater. For example, Pancasila has played a role in Indonesian economic policies in dealing with COVID-19, business monopolies and oligarchs, and eradicating corruption?. This study uses the Literature Review method for meta-analysis of data by reviewing several articles in national and international journals. The conclusion is that the Pancasila problem is more related to the implementation of the values contained in the Pancasila precepts. The very great values of Pancasila are not able to colour the life of the nation and state.
Abordagens Baseada na Natureza Para Gestão Sustentável de Águas Pluviais em Ambientes Urbanos: Uma Análise Bibliométrica
Authors: Alves Ronaldo , Rudke Anderson Paulo , Martins Jorge Alberto , Moreira dos Santos Mauricio
Published: November 2023

Este estudo avaliou as tendências emergentes e tópicos relevantes sobre gestão de águas pluviais em ambientes urbanos e sistemas de drenagem que englobam abordagens baseadas na natureza. Com base no banco de dados Scopus, 4.849 artigos publicados entre 1995 e 2023 foram selecionados para a análise bibliometria. O software VOSviewer foi utilizado para agrupar os artigos em temas de importância e Sistemas de Informação Geográfica (SIG) para gerar representação cartográfica anamorfose, demonstrando os locais onde a temática é mais abordada. Além disso, o método de diagrama de cordas foi utilizado para verificar a cooperação internacional em pesquisas sobre a temática. No geral, os resultados revelaram um notável aumento na quantidade de estudos nos últimos anos. Os temas mais abordados estão fortemente vinculados ao escoamento, inundações, tempestades, águas pluviais e qualidade da água. Estados Unidos, China e países europeus se destacaram como principais protagonistas nessas pesquisas. Contudo, há uma crescente colaboração e participação de instituições de países em desenvolvimento na condução de estudos, mostrando uma tendência de internacionalização nas pesquisas. Por fim, verifica-se que não há uma padronização terminológica na abordagem dos sistemas de drenagem pluvial sustentável. Cada região global ou país reflete um entendimento compartilhado localmente, resultando em uma diversidade de terminologias empregadas.