bluuebunny/crossref_metadata_2025 huggingface dataset:
Systematic Analysis and Application Prospect of Decision Tree
Authors: Xu JunYi
Published: December 2023

Decision making is common practice for everyone. One must make multiple decisions to move on during his/her lifetime. People are always eager to make the optimum decisions so that they could save energy and step in a right path. Although people try to avoid inferior options that comes with risk and danger, things happen from time to time. In this study, a powerful tool, decision tree, will be introduced to address this problem. With assistance of decision tree, one will make better choices more validly and more efficiently. Some concepts and algorithms of decision tree will be also included to understand examples from the application part. The purpose of this study is to introduce the concept of decision tree, analyze the advantages of decision tree and discuss its future. Although decision tree is widely utilized in many aspects in society, it still has shortcomings like overfitting and underfitting. Fortunately, there are methods such as pruning and random forest to solve these problems. The future of decision tree will be promising.
Theory And Application Analysis of Embedded Systems
Authors: Cai Chengxin
Published: December 2023

With the rapid advancement of information technology, society has seamlessly transitioned into the digital age, leading to profound transformations in both our productivity and way of life. Among the various forms of information technology, embedded systems have emerged as a ubiquitous presence in our production processes and daily routines. These systems have evolved hand in hand with modern information technology, continually striving for improvement and refinement. Embedded systems represent a specific category of information technology, characterized by their focus on applications, reliance on computer technology, and the ability to be tailored through customizable software and hardware. This article serves as an introduction to embedded systems, shedding light on their structure, distinguishing characteristics, and primary application scenarios in the current era. Furthermore, it explores the trajectory of their future development, delving into the emerging trends that are set to shape their evolution. By doing so, this discussion aims to foster the wider adoption and advancement of embedded systems in various domains. By comprehending the intricacies of embedded systems, this paper can leverage their capabilities to shape a future that is increasingly interconnected, efficient, and technologically empowered.
Comprehensive Analysis on Power Factor Correction Circuit
Authors: Xiao Lihao
Published: December 2023

With the development of industrial power electronics, the current era can be called the "world energy era". Energy has never been more important, especially with the growing demand for today's "green" energy sources. power factor correction circuits have become an integral part of most current AC voltage input power applications, whether it is automotive battery power, portable energy storage (such as power banks), traditional server power, or lighting systems. However, the basic principles of power factor correction converters are rarely described in detail. This paper will summarize and illustrate the basic principle of the power factor correction circuit, and first introduce the research background of power factor correction technology; At the same time, three operating modes of power factor correction circuit are analyzed: continuous on-mode (CCM), critical on-mode (CRM) and discontinuous on-mode (DCM), and their advantages and disadvantages are to be further discussed. In addition, the PFC converters with optimized topology and excellent performance will be introduced, and the application prospect and prospect of three-phase PFC converters will be presented.
Recent Advances in Electromagnetic Interference Suppression
Authors: Wang Chen
Published: December 2023

With the increasing popularity and complexity of electronic equipment, the problem of electromagnetic interference (EMI) has become increasingly prominent. Such interference can seriously affect the performance, reliability, and service life of the device and, in severe cases, may cause system failure or communication interruption. Existing EMI suppression techniques are widely used to address this issue, and this paper provides a comprehensive overview. Firstly, it introduces the impact and harm of EMI on us and then presents two forms of EMI, namely conducted EMI and radiated EMI, better to understand the sources and characteristics of these disturbances. Three different EMI filters, the advantages of soft switching compared to hard switching, the working principle of random modulation, and emerging trends in electromagnetic shielding are then analyzed and discussed. Finally, we comprehensively summarize the advantages and disadvantages of the above four methods and point out the possible limitations of each technique in practical applications. We also propose potential future research directions, which will help to overcome the shortcomings of existing technologies and promote the development of the field of EMI suppression.
A CMOS-Based 4-Bit Absolute-Value Detector for BCI Signal Feature Extraction
Authors: Yan Haien
Published: December 2023

In recent years, the integrated circuit industry has developed rapidly. Since the advent of the first computer, the performance of chips has increased exponentially while the size and power consumption have also decreased. Today, a high-performance chip is much smaller than a card. The increase in computing power also means that there are more possibilities in the field of computing and simulation. Many disciplines have also made new breakthroughs due to the improvement of computing power. Brain-computer interfaces and technologies such as rehabilitation medicine and virtual reality based on it are very promising technologies that allow the brain to interact directly with external devices. However, the signals of the human brain are very complex, and the brain-computer interface, as a signal relay station between the human brain and external devices, requires very powerful data processing capabilities. This article will first introduce the brain-computer interface technology and the method of processing the signals in it, and then propose an efficient absolute-value detector circuit design to achieve a very important step in signal processing.
Research On Mg Doping in Nitride Semiconductor Materials
Authors: Xu Zhichao
Published: December 2023

Summarized the achievements of various model research directions in nitride Mg doped semiconductors in this thesis. Due to the Internal properties of Mg acceptors which resulting the low ionization rate of acceptor, and the low hole mobility in heavily Mg doped nitrides, the conductivity of Mg doped nitrides is limited. At present, research is divided into three categories of models, one is a new type of polarization model. This model adopts a built-in electron polarization ionization acceptor dopant in the bulk uniaxial semiconductor crystal, and provides an attractive solution for the problem of P-type and n-type doping in broadband gap semiconductors. The other two are the traditional thermal activation model. There are mainly ultra-high-pressure-annealing (UHPA) and multicycle rapid thermal annealing (MRTA) respectively. Both of these schemes can activate more Mg impurities, resulting in higher conductivity in nitrides. The principles, advantages and disadvantages, and future development prospects will be explained of these three models in this thesis.
Review And Future of Non-Destructive Testing Methods for Composites in Aircraft
Authors: Tian Aoran
Published: December 2023

The application of carbon fiber in aerospace requires more advanced non-destructive testing methods due to its unique properties such as anisotropy. In this paper, mainstream non-destructive testing methods are introduced, including visual inspection, resonance test, acoustic emission, eddy current test, ultrasonic test, laser shearography, infra-red thermography, and X-ray. Their strengths and weaknesses are compared, and the common challenges are exposed. To solve those problems, some developing techniques such as hybrid methods and deep-learning-based automated inspection are proposed.
Consumption Analysis and Optimization Strategies for Four-Bit Absolute-Value Detectors
Authors: Jin Haokang
Published: December 2023

As embedded systems, communication systems, and neurology research continue to advance, the demand for high-performance components in digital circuits has risen. Simultaneously, there is a growing need for low-energy consumption. In this paper, Four-Bit Absolute-Value Detectors, as crucial components in digital circuits, have garnered significant attention for their role in achieving energy efficiency. This paper embarks on a comprehensive exploration, commencing with the fundamentals of circuit theory, circuit topologies, and circuit styles. Through extensive calculations and comparative studies, this paper conduct a thorough analysis of the factors influencing energy consumption in these circuits. The study reveals that various parameters have a substantial impact on energy consumption. To mitigate this, the author proposes multiple strategies, including gate size optimization, supply voltage optimization, and the selection of appropriate circuit styles. The significance of this study lies in providing foundational insights into the energy optimization of Four-Bit Absolute-Value Detectors. By investigating the interplay between gate sizes, supply voltage, path length, capacitance load, and circuit topology, this paper offer a holistic perspective on energy-efficient design.
Design of boom expansion principle and luffing system of side - mounted tower crane
Authors: Meng Lixia , Zhang Kuiyuan , Li Bin
Published: December 2023

In order to ensure normal movement and avoid interference in the erection and recovery process of the side-mounted rapid erection tower crane, our takes it as the research object, analyzes the structure composition and erection working principle of the boom part of the quick erection tower, and uses SolidWorks three-dimensional simulation to complete the drawing of different structure models of the tower crane. At the same time, the design of steel wire rope system is being studied, which provides a theoretical basis for the design of this kind of side-mounted tower crane.
Research of telescopic variable Boom length system for flat Boom tower crane
Authors: Luo Jiman , Yang Kun , Li Bin
Published: December 2023

The telescopic principle of its boom section is investigated using the luffing system of the horizontal lifting boom with telescopic operation as the aim. In order to ensure that the normal lifting and luffing work of the trolley can be ensured when the horizontal boom is telescoped and retracted, the support method of the rope system on the horizontal boom, including the lifting rope system, the luffing rope system, and the telescopic rope system, is studied. The procedure for locating the supporting pulley of the three rope systems is investigated, and the alteration in the length of the three ropes caused by the extension or contraction of the horizontal boom is examined. The boom system's force analysis is conducted, and the force expressions of each force member with the expansion and contraction of the boom are obtained, and the force state diagram of each force member is drawn by MATLAB software.
Research on Lifting Characteristics of Flat-Head Jib Tower Crane Based on Hydraulic Luffing Force
Authors: Wang Dan , Zhou Bopeng , Ding Guolin , Li Bin
Published: December 2023

This paper investigates a design and computational method for its lifting characteristics using the flathead jib tower crane as a research object. We use a mechanical model based on classical mechanical theory and derive the expression for the characteristic lifting equation. The influence of different hinge points of the hydraulic cylinder on the boom and other hinge points of the hydraulic cylinder on the slewing frame on the lifting characteristics is discussed by using MATLAB with examples, providing a theoretical benchmark for calculating the bearing characteristics of the flat head jib tower crane.
Design and Optimization of a CMOS-based 4-bit Absolute Value Detector
Authors: Liu Wencong
Published: December 2023

This research paper introduces a meticulously crafted blueprint for a 4-bit Absolute Value Detector (AVD) utilizing cutting-edge Complementary Metal-Oxide-Semiconductor (CMOS) technology. The proposed architectural marvel has been specifically fine-tuned to cater to the demands of high-speed, energy-efficient applications, making it applicable across a wide spectrum of signal-processing domains. At its core, this design harnesses the synergistic power of multiplexers, a ripple carry adder, and a comparator, strategically orchestrated to swiftly and accurately determine the absolute magnitude of the input signal, subsequently comparing it against a predefined threshold. The resultant circuit stands as a testament to its prowess, boasting a remarkably low latency while maintaining commendably low power consumption and a robust resistance to external noise interference. In doing so, it not only aligns itself with the contemporary requirements of rapid real-time signal processing but also paves the way for scalability, positioning itself as a viable solution for more intricate and demanding applications. By doing so, this innovation not only contributes to the ongoing evolution of electronic technologies but also sets the stage for future research endeavors, promising a brighter and more sophisticated future for the field.
3D NAND Based on Conventional Flash Memory Architecture Research and Application Prospects
Authors: Li Botao , Lu Ziqi , Xu Yuwei
Published: December 2023

With the rapid development of computer technology as a whole, the performance requirements of modern computer systems for storage technology are becoming higher and higher. This paper discusses the response to the problems that have arisen with the traditional storage in today's era, that is, the construction principle of the new storage three-dimensional memory (3D NAND) and the future development. Traditional storage in order to enhance the storage space of the plane flash memory, can only be components for shrinking, when shrinking to a certain extent when the flash memory will occur uncontrollable hidden danger, so the invention of 3D NAND. By vertically stacking many layers of memory cells, the storage density per unit area is greatly increased, with high-speed reading and writing, large capacity, low power consumption and other characteristics. Nowadays, 3D NAND is widely used in enterprises, and the industry is hopeful about the long-term prospects of the growing global demand for data generation and storage and the introduction of new technologies. The development of 3D NAND technology provides higher storage density and lower cost for NAND flash memory to meet the growing demand for data storage. This paper provides a systematic summary of existing research on 3D NAND in the hope that it will better enhance the overall technology improvement in the storage industry.
The Research Status of Knee Rehabilitation Robots
Authors: Song Ruiyan
Published: December 2023

Knee injuries have become an increasing challenge to human health in recent years. It not only affects the quality of life but also puts enormous pressure on the healthcare system. Therefore, research on effective knee rehabilitation has become particularly important. This paper reviews the current research status of knee rehabilitation robots, analyses the rehabilitation needs, and reveals the key role of robots in rehabilitation. In addition, the key technologies are analyzed, and the challenges and directions for future development are pointed out, providing useful guidance for further development in the field of knee rehabilitation robotics.
Research On Intelligent Engineering Management System Based on Rfid
Authors: Sheng Yi , Wang Jingtai , Zhang Dexiang , Long Haotian
Published: December 2023

The radio frequency electron label technology is one kind of automatic diagnosis technology, its through the wireless radio frequency way carries on the non-contact two-way data communication, utilizes the wireless radio frequency way to the record media to carry on the renewal, thus achieves the recognition target and the exchange of the data purpose. The radio frequency electron label technology's appearance, causes the article to scan when may to the supply chain in the product logistics information to carry on the sharing and the real-time tracking, fully combines the modern information technology, establishes the supply chain and the seller between the information interaction, objectively improves the supply chain and the logistics management standardization. In addition, based on the radio frequency electron label technology and establishes the wisdom project management system through carries on the data interaction, realizes the long-distance range reads, the non-contact recognition, the rapid readout, the simultaneous processing many labels the data and so on the operation, may help the enterprise operator to do well the material recognition work, satisfies the enterprise practical demand practically.
Research on Fuel atomization technology in aero engine
Authors: Yang Ren , Ji Zijie , Zhao Junjie
Published: December 2023

Recently, fuel combustion-related performances of aero engines are increasingly demanding, and their combustion quality directly affects their power, economy and emission characteristics, and a series of key performance indicators. The fuel atomization is the key link to determine the combustion condition. Therefore, this paper clarifies the mechanism of fuel atomization in aero-engines, studies the characteristics and methods of fuel atomization in aero-engines, and analyzes the influencing factors in the this process. The results indicate that lower fuel viscosity, smaller surface tension and appropriate temperature pressure, nozzle geometry, etc. can better enhance the fuel atomization performance. Herein, good atomization effect is the premise of efficient combustion, and it is important for energy saving and environmental protection. For the future development of engines, the rational organization of combustion is essential to improve their performance.
A Solar Cell Characteristic Measurement Device Based on STM32
Authors: Xie Sizhe
Published: December 2023

With the increasing development of the new energy photovoltaic (PV) industry and in-depth research of PV materials, it has become crucial to measure the characteristics of such materials. This enables R&D personnel to quickly iterate PV materials for further advancements. In the traditional R&D of photovoltaic materials, researchers often need to continuously iterate the materials, repeatedly measure the experimental materials, and ultimately get the best material ratio structure. Therefore, this paper designed an experimental device based on the STM32 chip for measuring solar cell characteristics. It can accurately and quickly measure the characteristics of a certain solar cell. CIGS thin-film solar cells were used as the experimental materials, and the light-dark voltammetry and temperature resistance experiments were done in turn. Therefore, it proved that the device has great commercial prospects.
Research Status and Perspectives of Plastic Degradation
Authors: Tian Zefeng
Published: December 2023

Contemporary society has witnessed a large variety of hazard plastic made. Plastic waste has become a major concern for individuals, governments, and organizations all over the world. The extensive use of plastics in producing consumer goods has resulted in huge amounts of plastic waste that has to be managed appropriately. Plastic waste is hazardous to the environment because it takes a long time to decompose. This article starts with a range of explanation techniques and outlines their principles and origins, for examples of common practices in today's culture include photocatalytic degradation, thermal degradation, biodegradation, etc. In the hope that they might effectively decompose these toxic compounds, many people are now pursuing study in these areas in order to offer a quick analysis of the current major explanation methods. A rise in future deteriorating methods can alleviate the negative effects on both human and animals’ life, and thus a healthier ecological environment can be achieved.
Application of MOFs in The Field of Adsorption And Separation
Authors: Zhao Yining
Published: December 2023

Metal-organic frameworks (MOFs) materials are a new type of zeolite-like porous materials with high porosity, high adsorption capacity and good thermal stability, which have attractive application potential in gas adsorption separation, photoelectric performance, catalysis, sensors and other aspects. Computational chemistry can not only break through the limitations of traditional methods, but also provide theoretical basis for the design of the best adsorption materials and the determination of ideal operating circumstances, and realize the shift from the main experience to the quantitative and directional preparation, thus saving a lot of complicated experimental research. As a result, it is important to carry out theoretical research on methane adsorption in MOFs materials. In this research, the adsorption properties, gas separation, seawater desalination and chiral drug separation in MOFs materials were systematically studied by molecular simulation method. This research can provide a new design approach for the synthesis and structural design of MOFs materials, and expand their applications in other fields
The Effect of MOFs on Carbon Dioxide Adsorption
Authors: Wang Junze
Published: December 2023

With the rapid increase in carbon dioxide emissions, the development of efficient treatment technologies is urgent. Metal organic frameworks (MOFs) are utilized in various fields, such as gas storage, gas adsorption, drug delivery, and more, making them a highly promising material. MOFs also play a crucial role in CO2 adsorption. This article begins with a brief introduction to the principles of carbon dioxide adsorption, explaining the basic characteristics and fundamental adsorption mechanisms of MOFs. It then provides a more specific understanding of MOFs by discussing several aspects, including the synthesis methods, crystal structures, properties of various MOFs, and the influence of branch additions on their performance. This facilitates readers in gaining a more concrete impression and a better understanding of MOFs. However, despite the good performance of MOFs in carbon dioxide adsorption, there are still certain shortcomings in terms of stability, selectivity, and large-scale applications, which will be elaborated on in detail in the later prospects analysis.
Application of MOFs in Lithium-Ion Batteries
Authors: Liu Junfeng
Published: December 2023

In recent ten years, environmental pressure has been increasing, and the demand for batteries has been increasing, requiring high cycling capacity and large capacity clean batteries. This article introduces the research and application of metal–organic frameworks (MOFs) in lithium-ion batteries. This article also introduces the types and characteristics of MOFs, and explains the mechanism by which MOFs-based functional materials improve battery performance, such as enhancing electrode conductivity through the good conductivity of MOFs nanomaterials. The stable spatial structure of MOF materials brings more ion adsorption sites and changes in buffer electrode materials. Then, through the application of Co-MOFs materials in batteries, a brief introduction was given on the application of MOFs for negative electrode materials in lithium-ion batteries, demonstrating the superiority of MOFs as electrode materials. Finally, by introducing the characteristics of MOFs materials, the application of MOFs in batteries was prospected, and more design possibilities for MOFs materials were proposed.
Nanotechnology and Biomaterials in Orthopaedic Medical Applications
Authors: Sun Yihan
Published: December 2023

The convergence of nanotechnology and biomaterials has heralded a transformative era in orthopaedics, revolutionizing the diagnosis, treatment, and rehabilitation of musculoskeletal disorders. This paper explores the profound impact of this synergy, focusing on innovations in implant design, regenerative therapies, targeted drug delivery, and advanced diagnostics. Nanotechnology's precision engineering has enabled the creation of implants that mimic natural bone, facilitating integration and improving mechanical stability. The fusion with biomaterials has led to scaffolds that foster tissue regeneration and implants with enhanced biocompatibility and longevity. The paper also delves into the challenges of this convergence, such as ensuring biocompatibility, navigating regulatory landscapes, and translating laboratory innovations into clinical practice. The research found that the strategic integration of nanotechnology and biomaterials holds immense promise for reshaping orthopaedic care, enhancing patient outcomes, and elevating the standards of treatment. This research signifies a critical exploration of the convergence of nanotechnology and biomaterials within orthopaedics, offering a comprehensive analysis that not only elucidates the transformative potential of this fusion but also provides insights and guidance for future research and clinical applications, thereby contributing to the advancement of personalized and effective treatments in the field.
Applications of 3D Printing in the Automobile Industry: Technologies, Impacts, and Future Perspectives
Authors: Pan Junyu
Published: December 2023

3D Printing, a technology that emerged in 1981, is a process of creating objects by adding layers of material. This technological advancement facilitates the production of intricate forms or configurations that are typically challenging or unattainable through traditional manufacturing techniques. There are multiple production methods available in the field of 3D Printing, each possessing distinct advantages and disadvantages. The automobile Industry has become a significant economic and industrial force over decades, using considerable materials, including iron, aluminum, and steel, to produce billions of vehicles. This article will delve into an in-depth exploration of various technological attributes, comparing their advantages and shortcomings. The central focus of this study revolves around understanding the application of three-dimensional (3D) printing in the automotive sector, pinpointing its existing limitations, and projecting its potential trajectory in the industry's future landscape. With the rapid development of materials science, new materials and production methods are widely used. 3D Printing is the rising star of these methods, and it has been applied extensively in the automobile industry to enhance prototyping, customization, and lightweight.
Comparing the CO2 emissions of three type of Vehicles
Authors: Gu Vinny Weilun
Published: December 2023

In the quest for sustainable transportation, this research delves deep into the   lifecycle CO2 emissions of Internal Combustion Engine Vehicles (ICEVs), Electric Vehicles (EVs), and Plug-in Hybrid Electric Vehicles (PHEVs), unveiling surprising intricacies. While ICEVs maintain a predictable emission pattern, the story for EVs and PHEVs is far more captivating, with emissions dancing to the rhythm of regional energy mixes, grid demands, and charging nuances. This study not only deciphers the complexities of vehicular emissions but also paints a vivid picture of the transformative potential of cleaner energy grids. As the   narrative of EVs and PHEVs unfolds, the research spotlights the pivotal role they could play in sculpting a greener transportation future. Beyond mere data, this exploration beckons readers into a compelling journey from the heart of our current transportation landscape to the promising horizons of sustainable mobility. Dive in to discover the challenges, opportunities, and innovations that could redefine our relationship with the road.
Mechanism and Application of Constructed Wetlands in Sewage Treatment
Authors: Wu Yaxin
Published: December 2023

In recent years, with the increasingly serious problem of global water pollution, constructed wetlands with high efficiency, high adaptability and low cost, as an effective wastewater treatment technology has been widely studied and applied. This article mainly introduced the common types of constructed wetlands, including surface flow constructed wetlands, subsurface flow constructed wetlands and a variety of composite constructed wetlands, and the mechanism of microorganisms, plants and substrates in constructed wetlands. Differently constructed wetlands are suitable for different scenes. It can be seen from the data that the constructed wetlands with different compositions have good effects on the removal of chemical oxygen demand (COD), biochemical oxygen demand (BOD), total nitrogen (TN), total phosphorus (TP), ammonia nitrogen (NH4+-N) in sewage. Microorganisms have good removal and transformation effects on nitrogen and phosphorus, and the application of biofilm technology also has good prospects and value. Plants can be used in the absorption and transformation of heavy metals. The adsorption of the matrix is mainly a physical process, which uses its loose porous and large specific surface area to adsorb pollutants. Artificial wetlands have a positive impact on sewage treatment and are conducive to the construction of ecological civilization.
Progress of ceramic materials in the application of armor protection
Authors: Yi Xianfei
Published: December 2023

Bulletproof ceramics have emerged as crucial elements within contemporary ballistic protection systems, aiding in safeguarding individuals and assets against various threats. As the demand for enhanced protection continues to rise, understanding the evolution and advancements in ceramic armor materials becomes imperative. This paper presents a comprehensive analysis of the evolution, properties, and advancements in ceramic armor materials. The nuanced comparative study of these ceramics includes highlighting the distinct ballistic properties of each, with a particular emphasis on the balance between hardness and potential fragility, as well as Silicon Carbide’s promising composite ceramics. The paper spotlights the transformative potential of graphene-modified ceramics, functional gradient materials, and micro-laminates. Alumina ceramics underscore the significance of microstructural optimization and the role of grain size adjustments. Conclusively, this paper offers a panoramic view of the past, present, and future trajectories of ceramic armor materials, advocating for continued research and innovation in this critical domain.
Principles of Biomimetic solid-state nanopores and the application to biosensors
Authors: Tang Zhuoming
Published: December 2023

The wide application of biomimetic solid-state nanopores in biosensors has made them a high-profile research area. It can be applied in several fields such as genomics, proteomics, biomedicine, and environmental monitoring. Bionic solid-state nanopores have demonstrated the capability to detect biomolecules and creatures, including proteins, nucleic acids, cells, and microbes, with a notable degree of sensitivity and selectivity. Biomimetic solid-state nanopores offer several advantages over conventional biosensors. An innovative kind of biosensor is called biomimetic solid state nanopores. This study provides a comprehensive overview of the principle, construction, and use of the bionic solid state nanopore sensor. Bionic solid-state nanopores are of significant importance within the realm of biosensors. Firstly, it has micrometer or nanometer scale, which can effectively capture and control target molecules; Additionally, the dimensions of the biomimetic solid-state nanopores can be modified, along with the surface functionalization, in order to enhance the performance of the sensor and expand its potential applications. In addition, the structural stability and reusability of biomimetic solid-state nanopores also guarantee the long-term application of biosensors. Through in-depth research and development, it is expected to promote the technological progress in the field of biosensors, and provide more accurate and reliable detection methods for life science, medical diagnosis, environmental protection and other fields.
Solid-State Nanopores Used for the Detection of DNA Molecules
Authors: Wu Kaiyan
Published: December 2023

Solid-state nanopore is crucial in dection of DNA molescules. DNA is made up of two antiparallel strands of polynucleotides. They are joined together by hydrogen bonds between complementary base pairs. The DNA structures are essential for the ability of genetic carrier to control gene expression, promote DNA recombination, and enhance mutagenesis. There are many ways to do DNA testing. Among these methods, nanopore have relatively small size which allows single-molecule detection. It is also less expensive. There are two kinds of nanopores, which are solid-state nanopore and biological nanopore. Solid state nanopore has better capacity to be incorporated into systems and arrays. The channel length and diameter of it can be controlled easily. In addition, its surface properties are also tunable. Therefore, this essay discussed concerning with the different types of nanopore technology: FEB, FIB and wet etching. The mechanism of nanopore was also explained. The existence of nanopores is conducive to a series of research on genes, pharmaceuticals, biology and so on.
The Modification of Graphite in Lithium-Ion Batteries and its Applications
Authors: Li Anqi
Published: December 2023

Lithium-ion batteries (LIB) dominate the battery market because of their excellent performance. However, the potential safety hazard of lithium-ion batteries is still regarded as an important factor hindering their further development. Lithium-ion batteries are highly flammable. In fact, there have been multiple cases of explosions caused by lithium-ion battery which result in severe burns over the past decades. Other concerns including recyclability and low power density produces obstacles to this technology. Graphite is a material with excellent conductivity. It has many outstanding electronic and mechanical properties. The basic and applied research on graphite has become a current frontier and hotspot. Therefore, graphite is also used to modify lithium-ion batteries. Especially using graphite to modify the anode material greatly improves its original performance. This work firstly introduced the physical and chemical properties of graphite. Subsequently, how graphite can enhance the efficiency LIB was introduced. A detailed introduction was given concerning with graphite modified anode materials. This work will promote the application of graphite in lithium-ion batteries.
Microalgae Organisms in Capturing Carbon Dioxide: Mechanism and Application
Authors: Zhao Leyi
Published: December 2023

In recent years, the application of fixing carbon dioxide (CO2) by using microalgae to reduce greenhouse effects has been considered a promising technology. Most researchers have paid attention to the economic value of this technology in the conversion of CO2 into energy and fuel products without pollution. This article provides the latest progress on the principles and practical applications of microalgae in CO2 capture, including biological products and biofuel products, and also discusses the challenges and solutions faced by microalgae technology and future expectation, which indicate that cynobacteria can help people alleviate energy crises and reduce the environmental issues of global warming by using natural biological animals to ease the pressure on the planet in an environmentally-friendly way. Based on the above introduction of the principles of microalgae technology, the article predicts the development prospects and potential of microalgae technology and proposes methods for the commercialization of microalga.
Research Progress of Treatment Method of Metal Ion in Wastewater
Authors: Zhao Huanrui
Published: December 2023

Along with the rapid development of urbanization in China, a series of environmental problems have accompanied, especially industrial effluents containing heavy metals such as lead, cadmium, mercury, etc., which have caused great damage to water, soil and earth, and have caused great harm to human health. In this article, new processes such as adsorption, membrane separation, chemical precipitation, ion exchange, bio-adsorption, and bio-reduction are introduced. The technology has shown excellent results in a variety of working conditions, opening up new ways for the treatment of heavy metal pollution in water. The development of this topic is of great and urgent practical significance for the protection of ecological environment and the promotion of sustainable development in China.
Application of Metal-Organic Frameworks (MOFs) in Carbon Capture
Authors: Cao Litian
Published: December 2023

The rising levels of CO2 are unavoidably connected to climate change and its consequences on atmospheric temperatures throughout the world. Carbon capture and storage (CCS) is a dependable and practical method for capturing carbon emissions from industry. This article introduces the realms of direct air capture, post-combustion carbon capture, and pre-combustion carbon capture. Furthermore, the paper delves into the fascinating world of metal-organic frameworks (MOFs) materials with a high porosity, tunable structures, and exceptional adsorption capacities that can effectively absorb substantial quantities of CO2, qualifying them as promising candidates for reducing greenhouse gas emissions. The synthesis methods and performance evaluation of MOF materials concerning carbon capture were introduced. Some of the challenges associated with MOFs are also discussed, including their reduced stability at high temperatures and sensitivity to moisture. This paper provides a comprehensive overview of carbon capture technologies, highlighting the potential of MOFs while addressing current challenges and opportunities in the field.
Application of CRISPR gene editing technology in cystic fibrosis treatment
Authors: Xia Kaisheng
Published: December 2023

CRISPR-Cas9 gene editing technology is to identify the target genome sequence through artificially designed sgRNA, guide Cas9 protease, so that it can effectively cut the DNA double strand, form a double strand break, repair after damage to lead to gene knockout or knock-in, and finally achieve the purpose of modifying genomic DNA which leading CRISPR a technology can effectively repair, correct or regulate genetic mutations associated with genetic diseases, providing patients with new treatment options. However, despite the remarkable progress, CRISPR technology still faces many challenges in its clinical application, including ethics and safety. This article reviews the principle and development of CRISPR technology, as well as its application in the treatment of cystic fibrosis, and summarizes the challenges of CRISPR in clinical applications. More importantly, this article focuses on some current improvements to CRIPSR to make CRISPR gene editing technology more valuable and meaningful in the treatment of genetic diseases in the future.
The Applications of Florescence Analysis: Determination of Ephedrine
Authors: Cheng Xianyang
Published: December 2023

Fluorescence analysis is a widely used detection method which can be used in many disciplines, including biotechnology and clinical practice. Fluorescence analysis is a strong instrument that can quickly and accurately detect a variety of chemicals. It is a useful approach due to its rapid and low-cost characteristics. Especially in the analysis of pharmaceutical ingredients, the fluorescence analysis method has been widely used by researchers. Ephedrine, a kind of natural medicine, is an indispensable component in the preparation of anaesthetics. Achieving efficient and rapid detection of ephedrine is an important research topic. Fluorescence analysis can precisely meet such needs due to its rapid and accurate detection. Therefore, the use of fluorescence analysis in ephedrine has become a research hotspot in recent years. In this article, various aspects of fluorescence analysis would be introduced from its working principle, characteristics, advantages and disadvantages. This work will contribute to the further development of this field.
Application of Graphene Technology in the Removal of Heavy Metal Ions in Wastewater
Authors: Guo Tianze
Published: December 2023

Nowadays, heavy metal pollution has become a serious problem. Toxic heavy metal ions can result in extreme damage to the environment and human society. Under that situation, methods that can remove the heavy metal ions in water have been required. Graphene technology can be widely applied to the removal of heavy metal ions. This article will explain the preparation of graphene oxide and reduced graphene oxide and the efficiency and influence factors of the method applied in water treatment. The method can remove many kinds of mainly occurring toxic heavy metal ions with very high efficiency. Also, large-scale production of graphene oxide can be achieved. The removal of heavy metal ions in water by graphene technology can be a practical method in the water treatment field.
Application of Artificial Wetlands in Water Pollution
Authors: Li Xinyu
Published: December 2023

With the development of social economy, a large number of pollutants such as heavy metals enter water bodies. Artificial wetlands have emerged with unique advantages in removing water pollutants, like removing the phosphorus or sodium, especially suitable for developing countries. Wetland aquatic plants have a large biomass and high organic content. Using aquatic plants as raw materials for anaerobic fermentation can not only produce biogas as bioenergy, but also achieve effective disposal of aquatic plants, avoiding secondary pollution and waste of biomass resources. Based on previous research on anaerobic fermentation of aquatic plants, this article explains the two reaction mechanisms of anaerobic digestion and their applications in constructed wetlands.
A Study on the Geological Characteristics and Genetic Types of Dashipo Andalusite Deposit in Yingjiang County, Yunnan Province
Authors: Wang Xiaoliu , Shi Ping , Xu Rongyong , Li Wei , Liu Dianrui
Published: December 2023

The Dashipo andalusite deposit in Yingjiang County, Yunnan Province is taken as an example in this article to discuss the geological characteristics of andalusite ore occurrence and to analyze the genesis of the deposit. The ore body is mainly found in the middle strata of the Upper segment of the Gaoligongshan Group in the Middle Proterozoic (Pt2gl2), with the ore-bearing layers consisting of Andalusite mica schist, Andalusite mica quartz schist, and Andalusite mica quartz schist. The main features of the deposit include its super-large scale, the medium to stable distribution of the ore layer, and the uniform grade changes. Most of the red feldspar in the deposit is composed of self-shaped to semi-self-shaped long columnar metamorphic crystals that are distributed along the schistosity of the ore layer. The ore material has a simple composition with relatively low content of harmful components, making it rare in China. Based on the location of the deposit, characteristics of the ore body, structural features of the ore, mineral associations, and chemical composition of the ore, it is preliminarily believed that the deposit belongs to the regional metamorphic type, which holds great significance for searching for similar types of deposits.
Research on the Impact of Energy on Emission Reduction and Environmental Protection
Authors: Jia Zhipeng , Liu Heyuan , Lu Yuanze
Published: December 2023

All nations are concerned about how to deal with the problem of the increasing carbon dioxide emissions in the globe today. By replacing traditional non-renewable energy with clean energy, greenhouse gas emissions can be reduced, thus helping to tackle climate change. Since the industrial revolution, global greenhouse gas emissions and the amount of energy generated from fossil fuels have increased dramatically, resulting in the highest levels of atmospheric carbon dioxide in 400,000 years. Therefore, this article aims to analyze the data on various energy consumption and carbon dioxide emissions by incorporating them into a multiple linear model, in order to identify the impact of different energy sources on carbon dioxide emissions. The results show that only oil, coal, and hydropower have a significant positive correlation with carbon dioxide emissions, while other energy sources do not have a significant relationship. Based on the above analysis, it is hoped to provide some meaningful recommendations.
Plasma-Doped Carbon-Based Anode Materials in Potassium Ion Batteries: A Review of Current and Future Prospects
Authors: Zhang Yichi
Published: December 2023

With the increasing demand for energy, finding clean, efficient, and renewable energy storage solutions is a crucial focus in today's world. In this context, potassium-ion batteries have garnered widespread research and attention as an essential solution to address environmental pollution and future energy challenges. This paper focuses on one of the key components of potassium-ion batteries - the anode materials, with a special emphasis on plasma-doped carbon-based anode materials. Initially, the significance of carbon-based anode materials in ion batteries is introduced. Subsequently, a detailed exploration is conducted on the diverse applications of plasma-doped carbon-based anode materials in lithium-ion, sodium-ion, and potassium-ion batteries. These materials demonstrate excellent electrochemical performance, significantly improving the energy density, cycle life, and stability of the batteries. Looking ahead, we will additionally discuss the optimization of synthesis methods, further enhancement of electrochemical properties, and the prospective development of large-scale production techniques. Finally, the study underscores the potential of plasma-doped carbon-based anode materials to emerge as a new trend in the field of future energy storage, making a substantial contribution to advancing sustainable energy storage technologies.
Preface: 1st International Conference on Fluid Mechanics, Computational Mathematics and Physics (FMCMP 2023)
Authors: Chen Yinwei , Garcia Suzanne
Published: December 2023

The 1st International Conference on Fluid Mechanics, Computational Mathematics and Physics (FMCMP 2023) was held in Xi'an City, China during November 18-19, 2023, it included original and peer-reviewed research papers.

FMCMP is an annual international conference devoted to the discussion of original work on theoretical, computational, and experimental aspects of the mechanics of fluids, with special regards to the Navier-Stokes equations. FMCMP conference covers the field of Fluid Mechanics, Computational and Applied Mathematics, and Physics.

FMCMP aims to provide a knowledge exchange and sharing platform of fluid mechanics, computational mathematics and physics for the aviation and aerospace industry, automobile industry, shipbuilding industry, etc. We welcome experts in fields related to fluid mechanics, computational mathematics and physics to join us.

We would like to thank all the author submitted papers to this FMCMP 2023 and thank all the reviewers for their time and effort in reviewing articles. Especially we would like to thank the organizing committee for their valuable advices in the organization and helpful peer review of the papers.

Organizing Committee of FMCMP 2023

Xi'an City, China