bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Comprehensive Evaluation Model Based on AHP-EWM
Authors: Shi Wenhui , Guo Jiayi , Ren Feng , Gao Xinyu , Sha Xu
Published: December 2023

Light pollution is becoming more and more serious due to the indiscriminate use of light by human beings. Light pollution is an inevitable negative impact in the process of urban development, and the degree of urban development is often inherently linked to the severity of pollution. This paper establishes a risk assessment model for light pollution using the entropy weight method and analytic hierarchy process to provide effective policy interventions for light pollution prevention and control. According to our research results, the higher the LPS (Light Pollution Score) value, the more severe the light pollution in the area. Through the calculation of our model, this paper eventually got the assessment scores of China's Greater Khingan Mountains, PUMA Township in Nevada, the suburb of St. Louis in Missouri, and Chinatown in San Francisco are 5.18475, 7.58404, 6.44596 and 14.50219, respectively.
Research on the Evaluation System of Light Pollution Risk Index
Authors: Li Tao , Li Ruixue , Yi Renjie
Published: December 2023

Light pollution is the general term for the sum of various harmful effects of artificial light. This report aims to establish a light pollution risk level evaluation model through light pollution risk assessment, and provide effective intervention strategies to mitigate the adverse effects of light pollution. First of all, the report follows the principle of scientific and comprehensive, and establishes a comprehensive evaluation system for the risk level of light pollution. Then, the corresponding data were collected, 19 indicators such as average night illumination, electricity consumption, glare index, artificial light intensity were selected as evaluation indicators, and the entropy weight method-TOPSIS comprehensive evaluation model was constructed to quantify the data, and the weights of each index were determined, and it was found that the proportion of glare index and community lighting weight was the largest. Then, applied to four different types of sites, the level of light pollution risk in different regions was discussed. Finally, the stability of the data is verified and it is concluded that prosperous cities have the highest light pollution levels, while protected areas have lower light pollution levels. The model passed the stability test, and a variety of visualization methods were used in the article to make the results more intuitive.
GIS-Based Analysis of Wildlife Habitat Suitability and Conservation Strategies in Maasai Mara Reserve
Authors: Xiao Mingzuo , Wang Yuyan , Ma Wenhui
Published: December 2023

The significance of conducting an animal habitats suitability analysis is to enhance sustainable management in the face of land use modification, population growth, and changing settlement patterns, thereby safeguarding Kenya's natural resources, tourism, biodiversity, resource utilization, and community livelihoods. This paper establishes a habitat suitability analysis of specific animal habitats based on GIS technology. Firstly, key indicators were identified and subjected to the single factor analysis. Secondly, the AHP model was employed to calculate the weights of the indicators. A comprehensive evaluation was then carried out to visualize the animal habitat suitability map. Finally, the results of the animal habitat suitability analysis were overlaid with the spatial data of the road network. Overall, the results show that the suitable habitat for wildlife habitat is concentrated in the eastern and western corners of the Masai Mara Reserve, evenly distributed in the south-eastern corner, with a small amount in the north. The impact of lost opportunities for people living near the reserve will be significantly reduced. A kernel density estimation model was introduced to make predictions based on the first law of geography. The visualized predictions show that the habitable range of animals is relatively close to the results of model 1, which proves that animal populations and the quality of human life are secure.
Measures to improve electric and electronic efficiecny in power plant
Authors: Li Guoyuan , Zhang Congchang , He Yao
Published: December 2023

Electric efficiecny is an important index in power plants which related to the net power output to the grid and also reflects the energy saving level which may lead to reward or penalty by the government. In this paper, measures to improve the plant electric efficiency and methods and design experiences to narrow down the gap between calculations and actual electric efficiceny are discussed. An example of plant power efficiecny in 2x1000MW power plant is also illusterated in this paper, of which the plant power efficiecny could be reduced to 3.2%.
Research on soil organic carbon pool and distribution characteristics in farmland
Authors: Wu Yinqi , Li Chuncheng , Yang Jun , Xiang Jianqiao , Xu Chunyan , Zhao Min , Yuan Zhiyang , Pan Fei
Published: December 2023

In this paper, the researches on the estimation of cultivgated soil organic carbon storage and its variation trend were conducted in Shayang County, a typical agricultural county in Jianghan Plain in China. The results showed that the order of soil organic carbon density (SOCD) was paddy soil > moisture soil > yellow brown soil, and the mean values were 4.46, 3.12 and 2.55 kg/m2, respectively. No matter which soil type, the organic carbon content of soil decreased gradually from the surface to the deep soil in the form of exponential function. By analyzing and processing the organic carbon data from 2001 to 2018, the average SOCD in the topsoil increased from 3.69 to 4.25 kg/m2, with an increase of 15.18%.
Fitting Analysis and Prediction of Carbon Sequestration in China Based on Clustering and Mode Decomposition
Authors: Chen Zhang , Peng Yuxu
Published: December 2023

The Topsis algorithm is used to evaluate the environmental status of the existing countries and give suggestions for the overall environmental development. In this paper, a method of statistical clustering and pattern decomposition is proposed. Among them, pattern decomposition is an idea to evaluate the work of evaluating carbon sequestration from different angles, and then comprehensively consider the evaluation. Statistical clustering is to describe the similarity between different regions more clearly. This study finally predicts the potential carbon sequestration in China, which is a new attempt for carbon sequestration research. This paper aims to achieve the following objectives : 1. Analyze the common characteristics between different regions in China, and make a reasonable explanation, systematically evaluate the current carbon sequestration level and potential capacity in China.2. 2. Long-term and short-term prediction of China 's future carbon sequestration level. Discuss and clarify the experimental conclusions in detail, and give systematic and reasonable suggestions. It is concluded that the carbon sequestration level of the two regions in the next 40 years will increase by 6 ~ 700,000 tons of carbon sequestration on the basis of the original.
Research on the Impact of Drought Environment on Plant Community Diversity Based on Differential Equation Models
Authors: Li Wang , Su Taorui , Yang Zhuoheng
Published: December 2023

Plants play a crucial role in the influence of ecological environment. In order to predict the changes of plant communities in dry weather, this paper firstly collected monitoring data from a sample of grassland ecological stations from the China Biological Research Network (CERN), and constructed a linear model for the changes of plant communities under different climatic conditions, and since the linear correlation of this model was not strong, this paper then constructed a new non-linear correlation model. Firstly, the interspecific competition model of vegetation community was constructed from the interspecific competition model, and then the functional relationship between drought rate and plant growth rate was obtained using the logistic function, and the multi-species competition model was improved. Finally, data from ecological stations were used to visualise vegetation competition and development.
A Study on The Tectonic Control and Metallogenic Regularity of The Sanjiang Sanjiang Metallogenic Belt Cobalt Deposit in Yunnan Province
Authors: Xia Guoti , Yang Jianbo , Fan Ligang , Wang Chaoyong
Published: December 2023

The Sanjiang region of Yunnan is rich in minerals, especially known for gold, copper, lead zinc, and iron ore deposits. There are many genetic types of ore deposits, and most of the ore deposits (points) and anomalies are controlled by the northwest north-south structural belt. The regional tectonic activity is strong and the metallogenic conditions are superior. In this paper, the structural ore-controlling effect and metallogenic regularity of Sanjiang Metallogenic Belt cobalt deposit in Yunnan Province are further studied. The mineralization of the ore belt is most closely related to the Caledonian submarine hydrothermal sedimentation, and after mineralization, it was obviously transformed by Indosinian metamorphism and hydrothermal superposition. Some scholars have carried out relevant research on the geological and geochemical characteristics and genesis of the deposit, and think that the deposit is stratabound-reformed, jet sedimentary, hydrothermal sedimentary-tectonic reformed, etc. However, the chemical properties of ductile rocks are inactive and the permeability is poor, which makes the ore-forming fluid difficult to lose, which is beneficial to the full water-rock reaction between minerals in hydrothermal solution and surrounding rocks flowing through carbonate rocks, resulting in a large number of minerals precipitation and enrichment. When the soft and hard rocks alternate with each other, it is beneficial to form bedding detachment structure to become ore storage space, and it is also beneficial to the precipitation of minerals along the chemical interface and the enrichment of minerals.
Optimal Design and Research on Honeycomb-Like Structure Geothermal Production and Irrigation Well Network
Authors: Lin Zhongkuo , Bao Jungang , Wang Youhui
Published: December 2023

Inspired by the honeycomb shape structure, this structural shape was applied to the design of the geothermal well network, and the CMG simulation software with STARS as the core was used to establish a geothermal resource geological conceptual model of the Liaohe Oilfield Shenyang Oil Production Plant Oilfield. This model applied hydrothermal coupling simulation technology, studied the heat recovery effects of different production and irrigation well networks, conducted comparative analysis, and finally optimized the production and irrigation well network design and chose an inclined seven-point well network. The main advantages of using this honeycomb structure are reduced investment, maximum utilization of space, and larger Covers heat storage area to obtain maximum heat recovery, and it is easy to convert to other good network forms and adjust later.
Treatment Methods and Hazards Analysis of Microplastics in the Aquatic Environment
Authors: Luo Haoran
Published: December 2023

Microplastics (MPs) are tiny plastic shards with a diameter of less than 5 millimeters that are produced by many processes like the splintering of synthetic fibers. MPs pollution has become a serious problem for the ecosystem. These minute plastic fragments are already pervasive in terrestrial and aquatic habitats, endangering wildlife, ecosystems, and perhaps even human health. This paper lists and compares various MPs treatment methods, explains the potential hazards of MPs, and concludes with recommendations by comparing policies and measures in different countries. In this paper, MPs treatment methods are classified as physical, chemical and biological based on different mechanisms of action, and new treatment methods are found to have the advantage of saving resources and improving removal efficiency. The potential hazards of MPs are seen in the restriction of the activities of marine organisms, leading to drowning, asphyxiation or inflammatory reactions, and in the human population, where they enter the human system through the food chain and accumulate in various tissues, ultimately endangering health. Furthermore, by comparing the measures taken by countries to deal with plastic waste, countries should develop policies that are compatible with the disposal of MPs. This study has important implications for the development and innovation of MPs removal technology, providing a more effective and sustainable solution for countries to address MPs pollution.
Research on the Causes, Effects and Countermeasures of Overcultivation
Authors: Zhang Zhongze
Published: December 2023

In recent years, the overcultivation of land has become one of the major concerns of people. With the growing population, people have a greater demand for food and a greater desire for open areas, so more and more land is being reclaimed (wasteland, grassland, woodland). This paper discusses the harm of desertification to the surrounding environment and analyzes the causes of this phenomenon. The results show that soil erosion, water flow loss and vegetation destruction directly lead to the imbalance of ecosystem. By studying the classification of land desertification, soil pH and water content, vegetation coverage and other aspects, this paper believes that reducing overcultivation can effectively solve land desertification and other environmental problems, which also needs the help of the government, enterprises and the masses, promulgating laws prohibiting excessive overcultivation, and calling on the people to reduce overcultivation. Develop more advanced technology to improve the efficiency of land use. At the same time, this paper hopes that all sectors of society will have better ways to reduce the big problem of land overcultivation.
Analysis and Forecast of Land Use Based on Patch-generating Land Usage Simulation (PLUS) Model: A Case of Shaanxi Province in China
Authors: Wang Yunqiu
Published: December 2023

China has witnessed a substantial number of land-use type shifts and broken land-use distribution patterns as a result of massive irrational exploitation, which has led to problems like a significant loss of environmental habitability and declining ecosystem functioning. Investigating the origins and mechanisms of land-use change is essential. The results show that earlier land-use models, which also lacked simulation studies and projections of land-use changes in Shaanxi Province over a 20-year timeframe, find it difficult to integrate quantitative and spatial pattern forecasts. This paper uses the patch-generating land usage simulation (PLUS) model to assess Shaanxi Province's land use patterns between 2000 and 2020 and predict land usage for the year 2025.Farmland, woodlands, and grassland are the three main land types that make up most of the Shaanxi Province's total area. Forests make up most of the land that will be transferred between 2000 and 2020, while agriculture makes up most of the land that will be transferred. Most of the elements influencing the spread of all land use types were rainfall and Normalized Difference Vegetation Index (NDVI). The central and southern regions of Shaanxi province will primarily experience changes in land use by 2025.This research offering a resource for Shaanxi Province's science of land use structure and efficient land resource allocation.
Positive and Negative Effects of Using Animals as Humans’ Entertainment Purposes
Authors: Hu Zhipei
Published: December 2023

Animals have been used for human beings’ entertainment for centuries. The problem existed now will be whether humans should stop using animals for their entertainment purposes or not. This study analyzes the causes and consequences of using animals for humans’ entertainment and compares the benefits and drawbacks resulted from it in order to give out appropriate measures to solve the problem of animals being abused by humans. This study first introduces the history of animals being used as humans’ entertainment purposes and then it analyzes the reasons behind this. It mainly discusses about the effects that animals being used as humans’ entertainment purposes can result in, including both negative ones and positive ones. It then quotes multiple perspectives towards the phenomenon, including opponents arguing that animals should never be used for human beings' entertainment because they also deserve to have their freedoms as humans do, and advocates suggesting that people catching animals in cages is sometimes actually helping them. Finally, it suggests appropriate courses of action to solve the issue. Encouraging people to stop supporting zoos and circuses that are not yet proven to have suitable treatments towards animals and shutting down zoos and circuses having cruel treatments towards animals will be the next steps to relieve the phenomenon. This study is hoped to raise people’s awareness of being concerned with those animals that are suffered from humans’ cruel treatments and change some animal conservationists’ stereotype that using animals for humans’ entertainment is always unethical.
Application of “3S” Technology in Land Resource Management
Authors: Xue Haosu
Published: December 2023

Land resource management is one of the most important ways to deal with the relationship between land resource and human being to improve land use efficiency and gain more benefits. “3S” technology refers to remote sensing (RS), global positioning system (GPS) and geological information system (GIS). “3S” technology is widely used in different fields generally as an excellent method and it has advantages to exploit in land resource management. Now as the population grows, the conflict between land resource and mankind extrudes with global resource shortage. The effort using “3S” cannot be ignored. This article explains the definition and ability of “3S” technology and analyze the application of “3S” in the Investigation of land resource, land environment dynamic monitoring, land evaluation, land consolidation and land planning. The author concludes the utilization of “3S” technology in land resource management and looks forward its development in the future from different perspectives. Informatization, intelligent and integration are three directions “3S” will make progress. This article takes some examples to illustrate how to help “3S” technology step forward in the future. Through these ways, the optimized “3S” technology has ability to overcome disadvantages and build up new use of the way. So the efficiency of land resource management will be improved obviously to achieve the sustainable use goal of land resource.
Relationship Between Life Cycle Assessment and Sustainable Development Goals: Potential, Challenges and Future Directions
Authors: Shen Jinyao
Published: December 2023

The convergence of Life Cycle Assessments (LCAs) and Sustainable Development Goals (SDGs) forms a substantial approach towards enhancing the comprehension of environmental impacts, underpinning sustainable decision-making strategies. As holistic analytical tools, LCAs critically contribute to the achievement of SDGs by assessing environmental ramifications throughout a product or service's lifecycle. This integration not only unveils synergies and trade-offs among various goals but also fortifies the monitoring and evaluation of sustainable development progress. Significant challenges impeding effective alignment, such as augmenting data quality, formulating LCA methodologies tailored for SDG appraisal, and harnessing the potential of emerging LCA methodologies, are elaborated. The paper accentuates the crucial role of robust indicators and targets in tracking progress and informing policy, thus emphasizing the need for continuous monitoring in LCA-SDG integration. Bearing significant implications for researchers, policymakers, and practitioners, future work should focus on refining LCA methodologies specific to SDG assessment, enhancing data quality, fostering interdisciplinary collaboration, conducting practical case studies, and maintaining persistent evaluation of LCA-SDG initiatives. In essence, the amalgamation of LCAs and SDGs could significantly accelerate sustainable development objectives, fostering a future that is both ecologically responsible and prosperous.
Nuclear Pollution and Its Effects on Marine Ecosystems
Authors: Han Xinran
Published: December 2023

Nuclear pollution is a severe environmental problem deriving mainly from industrial activities and can pose extremely negative affect to plants and animal bodies. Nuclear waste also has extreme negative effect on human bodies and can cause various diseases including skin disease, infant deficiency and cancer. There are few studies about the effect of nuclear waste to food webs and how it affects different trophic levels within the ecosystems. This study explains the effect of nuclear pollution on the marine ecosystems and focuses on the transportation of the pollutants through food webs as well as the sufferance of species in different trophic levels. It is concluded that nuclear pollutants can experience biomagnification within food webs and are transported to higher trophic levels by their food consumption. In addition, planktons, fish and seals are representative species of different trophic levels in marine food webs, and these species all suffer from nuclear contamination after nuclear pollutants enter their bodies through biomagnification. Future studies can focus on the process of energy transportation within food webs, such as whether the absorption of energy would be less efficient by higher trophic levels after consuming organisms with nuclear pollutants inside comparing to organisms with no nuclear pollutants. This study propose a explanation of respective effects of different trophic levels in marine ecosystems by nuclear pollutions, which can call on attention to the extreme negative effect of nuclear pollution to marine ecosystems.
Effect of Climate Change on the Invasive Alien Plant Species
Authors: Chen Siru
Published: December 2023

The introduction of invasive alien plant species (IAPS), which have strong competitiveness will outcompete the native species, destroy the ecological balance and results in loss of biodiversity. Under staggering changes of climate scenarios, the damage brought by invasion could be even more unpredictably severe. To better protect the original biodiversity, possible evolution process of distribution and mechanisms of some invasive species, and some efficient approaches that could deal with invasive organisms is concluded below. The results illustrate that based on their dominant biological mechanisms, the invaded geographical regions will increase in the future and with different species, the rate of expansion may vary. The elevational changes of invaded regions will also occur due to rising temperature. With increasing rate of globalization and climate change, there will be more frequent species exchange in the future. Controlling or preventing the presence of IAPS out of natural range, especially the presence caused by anthropogenic activity will still be extremely crucial. It is also necessary to keep carrying out experiment, modelling and analysis to comprehend the nature of invasive species. The paper summarizes the possible effect and mechanisms of typical species that can be used by the authorities, in order to develop effective control and management strategies in the nearly future.
Impact of Climate Change on Environment and Marine Species of the Artic Ocean
Authors: He Yue , Ling Zijun
Published: December 2023

As one of the four oceans on earth, the Arctic Ocean plays a vital role in affecting the ecological environment of the earth. Due to vegetation degradation, natural disasters and human activities, acid rain, global warming and ozone layer destruction as the main forms of climate change have brought serious negative impacts on the Arctic Ocean ecosystem and its environment. Currently, the Arctic Ocean is one of the regions of the world most affected by climate change. Climate change is caused by many factors. Vegetation degradation and atmospheric particulate matter caused by natural or human activities are major contributors to global climate change. Climate change has led to a dramatic rise in Arctic temperatures and increased mercury pollution. Pollution and reduced sea ice are also affecting many plant and animal species. In this paper, the causes of climate change and the effects on the environment and biodiversity in the Arctic Ocean are studied, and the improvement measures are proposed. In the future, people should pay more attention to carbon emissions, advocate low-carbon life, and pay attention to environmental protection. This study provides a theoretical basis for people to pay more attention to the abnormal changes of the Arctic Ocean environment and pay more attention to improving the environment.
Categories of Climate Change and Impact on Bird Behavior
Authors: Yu Yichen
Published: December 2023

Birds are extremely vulnerable to even tiny changes in temperature, moisture and climate. The possible effects climate change, like temperature or precipitation, can have on their survival has gradually increased over time. This study looks at these effects, particularly on their behavior changes, which is categorized into either migration or reproduction. Furthermore, birds have managed to micro-evolve in order to avoid ecological mismatches that can lower their possibility of survival and reproduction. This study then discusses birds’ behavioral microevolution as an alternative solution to the changes brought about by climate change. Overall, climate change influence both resident and migratory birds to a large extent. Although they are able to utilize microevolution, this effort might not be enough to cover for potential drawbacks.
Impact of Climate Change on Ancient Chinese Dynasties
Authors: Zhang Rongxuan
Published: December 2023

Since the dawn of history of China, the rise and fall of dynasties has been an irresistible historical process. This paper aimed to interpret the succession of dynasties from a historical, social, and cultural perspective. Throughout history, many theories have emerged to explain these factors. Climate change has been a concern in recent years, and many countries have begun to take action to address the issues brought about by climate change. In recent years, when discussing the rise and fall of Dynasties in Chinese history, people tend to explore the essential reasons rather than surface events. This paper focuses on the impact of climate change on several aspects of the dynasties, like development and agriculture. Which may be related to national fortune or productivity, but it is undeniable that the rise and fall of each dynasty has its own corresponding climate characteristics, so when looking at historical issues, it is worth exploring the overall law of climate change affecting the rise and fall of dynasties in history of China.
Harm of Delivery Packaging on Environment and Improvements
Authors: Du Yuqian
Published: December 2023

In recent years, environmental problems caused by material production and consumption are attracting more attention. Express delivery packaging is a principal content of them since online shopping is getting more popular. The tendency of wasting resources on delivery packages should be taken seriously. This article summarizes different materials of the delivery package and the harm to the environment of them and accordingly raises several solutions. At present, plastics are the most prominent material of concern in terms of packaging for courier services, as their production and recycling procedures have the most significant negative influence on the environment. The impact of other types of courier packaging materials such as cardboard boxes, woven bags, and others should also not be overlooked. The production, use, and recycling processes of these materials can lead to issues such as microplastic pollution, excessive carbon emissions, and air pollution. Ways to improve and address these issues include using easily recyclable materials, replacing non-biodegradable materials with biodegradable green alternatives, reducing excessive packaging, and implementing relevant regulations and policies. The emphasis on decreasing the negative impact of delivery packages on the environment is significant for sustainable development.
Study Progress on the Ecological Effects of Biochar in Soil
Authors: Wang Yixuan
Published: December 2023

Soil is an indispensable and important part of human production and life, and biochar, as an important form of utilization of biomass energy, can be widely used in soil conditioning and crop conditioning. Currently, a systematic framework for studying biochar's ecological impact on soil is still required. This paper briefly introduces the basic preparation method of biochar, structural characterization of biochar, and briefly describes its basic properties. By adsorbing pollutants with a high specific surface area and strong adsorption, biochar can be used to clean up heavy metal contamination in soil. It can also boost soil fertility by increasing enzyme activity and organic carbon content, as well as by reducing bulk weight and increasing cation exchange to increase soil fertility retention capacity. In addition the moderate addition of biochar can also play a positive role in crop conditioning to a certain extent. The purpose of this paper is to summarize the basic theories and research related to the study of the ecological effects of biochar in soil by introducing the typical preparation methods and basic properties of biochar, so as to facilitate the subsequent further research.
Glass Classification and Composition Study based on systematic clustering
Authors: Xie Jiadong , Li Yixun , Huang Bochen , Chen Yiyi , He Yimeng
Published: December 2023

To obtain the influence of the production of raw materials and buried environment changes on their composition, this study analyzes a batch of ancient glass products in China. In the history of the Silk Road, glass was an important trade item. The main raw material of ancient glass is quartz sand, with a high melting point, so it is necessary to add solvents and stabilizers for refining. Different solvents contain different main components. The results show that the burial environment change of ancient glass products can affect their color, ornamentation, and composition ratio. The addition of different cosolvents to the production process can lead to different compositions of ancient glass products. The analysis of ancient glass products plays an important role in providing a better understanding of the Silk Road trade and technology exchange.
Study on Intercalated Melt-blown Nonwovens Based on Product Performance Control Mechanism
Authors: Feng Jiaxin , Li Riyin , Wang Jiale , Wu Chen
Published: December 2023

There are many factors affecting the preparation of intercalation melt-blown nonwovens, and scientists are committed to studying the conditions required for optimal product performance. Therefore, in order to study the optimal conditions, this paper first uses multiple linear regression to explore the correlation between intercalation rate and the change rule. It is found that intercalation rate is related to the change rule of thickness and filtration resistance, but has nothing to do with other indicators. In order to explore the relationship between process parameters and structure variables, a multi-layer perceptron (BP neural network) model with process parameters as input and structure variables as output is established. The relationship between input and output is obtained by using the trained network and the functional relationship is calculated. By analyzing the function, it is found that the correlation between the receiving distance and thickness and porosity is stronger than the positive correlation between the hot air speed and the compression resilience is stronger than the negative correlation between the hot air speed. The correlation between hot air velocity and thickness and porosity is weaker than that of receiving distance, and the correlation between hot air velocity and compressive resilience is weaker than that of receiving distance.
Study On the Composition of Glass Products Based on Soft Voting Model and Grey Correlation Analysis
Authors: Li Chenyang , Zhang Jiani
Published: December 2023

The inspection and identification of ancient glass composition has always been an important research content, this paper on the ancient glass as a medium, for its chemical composition, weathering characteristics and classification rules and other aspects of the study, the establishment of a soft voting integrated learning model to random forest algorithm, SVM algorithms and GBDT algorithms as a base classifier, the use of soft voting on the base classifier for the classification of the results of the integration of the learning, and then to the The chemical composition of unknown artefacts is analysed and classified, and the classification accuracy of soft voting is as high as 96.6%, and the coverage rate of ROC curve reaches 99.1%, which indicates that it is reasonable and effective to solve the problem with the integrated learning model. Finally, by changing the number of decision trees, the classification accuracy rate is found to be unchanged, which verifies that the sensitivity of this model is good. In addition, this paper establishes a grey correlation analysis model to generate grey correlation coefficient matrix heat map for the chemical composition of different categories of glass artifacts, the horizontal coordinate of the heat map is the parent sequence, the vertical coordinate is the subsequence, according to the heat map of the correlation between the chemical composition of different types of glass artifacts to summarize and analyze, and in order to validate the reasonableness of the model, but also its Spearman correlation analysis, the results of the analysis of the two models are similar, so it can be judged that the application of the model is reasonable and effective. The results of the two models are similar, so it can be judged that the results of the grey correlation analysis model applied are reasonable. Finally, a detailed comparison of the chemical composition correlations of the major categories and subcategories is carried out, which is a differential analysis of the correlations of different categories of chemical compositions.
Research And Design of A 3D Reconstruction Algorithm with Lio Algorithm
Authors: Tian Fangzheng
Published: December 2023

Based on existing research results, this article uses the WheelTev Ackermann-type robot to implement the Fast-Lio and related improved algorithms and initializes system parameters under the condition of tight coupling of laser radar and inertial navigation unit data. At the same time, the obtained point cloud map is subjected to backend loop detection to remove graphic distortion generated during mapping and achieve 3D structure reproduction in multiple semi-open environments. Selected scenes with structural features in the campus of Southeast University were used to test the algorithm's effectiveness, and the robot was able to successfully complete mapping requirements and achieve automatic cruising and return in industrial scenes, demonstrating the algorithm's reliability in industrial scenes. The algorithm was also tested on some open-source datasets, and the experimental results showed improvements in some performance parameters, especially in computational load and robustness compared to existing algorithms.
Transient Stability Impact of Short Circuit Fault System Based on SVC And PSS Applications
Authors: Gao Xinyue , Liu Xuanzhe , Zhang Dapeng
Published: December 2023

Researchers are currently focusing on two solutions, namely Static VAR compensator (SVC) and power system stabilizer (PSS), to address different power system stability issues in large area interconnected power grids. To enhance transient stability, researchers have suggested a combined approach involving SVC and PSS. In this method, SVC and PSS coordinate and cooperate with each other to provide better stability assurance. To verify the feasibility of this method, simulation experiments were conducted using MATLAB. Simulated the situation of single-phase ground fault, two-phase ground fault, and three-phase ground fault in the power system, and tested the effectiveness of SVC and PSS respectively. The simulation results show that the combined use of SVC and PSS can significantly improve the transient stability of power systems and effectively reduce the impact of faults on the system. In summary, the combined use of SVC and PSS can effectively solve various power system stability issues that may arise in large-scale interconnected power grids. By conducting simulation experiments in MATLAB, researchers have verified the feasibility of this method under different fault conditions, providing strong support for practical applications.
A Way to Optimize Delay of Carry-Skip Adders by Using Blocks of Variable Sizes
Authors: Zong Chi
Published: December 2023

As one of the most common operational modules in computer processors, the optimization of the propagation delay of adders has attracted extensive attention of researchers. This article proposes a method of optimizing the delay of carry-skip adders by using blocks of variable sizes. By increasing the sizes of the bypass stages gradually and then decreasing it stage by stage, keeping the delay of the first and last stage short, the total propagation delay is optimized. Compared with fixed size carry-skip adders, the delay of variable sizes carry-skip adders has a square root relationship with the number of bits. Thus, when the number of bits is large, the propagation delay is significantly reduced. After calculation, when the number of bits is 16, the propagation delay decreases by 16.67%, and when the number of bits is 256, it decreases by 52.78%. Due to the shorter propagation delay, variable sizes carry-skip adders have faster operation speed and can be applied to improve the performance of computer processors.
Circuit design and energy optimization strategy for a four-bit absolute value detector
Authors: Ke Minghan
Published: December 2023

The demands placed on the quality of products and services within the realm of electronic technology have reached unprecedented heights. The utilization of electronic decoders has thus become incredibly extensive to meet these evolving needs. Among the integral components of electronic decoders, the absolute value detector holds a significant position. In our pursuit to enhance the efficiency of electronic decoders, this paper have identified substantial room for improvement within the currently prevalent absolute value detector designs. This paper introduces a novel absolute value detector design scheme that promises remarkable advancements. It is worth noting that the performance of this newly proposed absolute value detector far surpasses that of the traditional counterparts. Through rigorous calculations and testing, our absolute value detector exhibits an impressive performance profile, boasting a delay of 34.13FO4 (1V) and an energy consumption of 184.832Eu (1V). These results undoubtedly hold the potential to catalyze innovation in digital decoder technology, offering fresh insights into how we can elevate the overall quality of digital decoders. This contribution paves the way for product enhancements and serves as a valuable resource for those striving to stay at the forefront of electronic technology advancements in our fast-paced information-driven society.
The methods of Mg-doped GaN-based p-type semiconductors
Authors: Dong Xinhao
Published: December 2023

This article mainly discusses the disadvantages of the third-generation semiconductor material based on GaN and points the ways of optimization and development. The P-type doping optimization method is especially focused. As the core element of P-type doping, Mg element has its advantages and disadvantages in research and use, and some improvement methods are pointed out. In addition, the principles of several specific P-type doping methods, mainly including polarization-induced doping, Mg-delta doping, superlattice doping, and Mg-In co-doping are discussed.
Research On the Design Process of Irregular-Shaped TBM Cutterhead
Authors: Han Xingchao , Li Nan , Hu Rui , Chen Shiyou
Published: December 2023

On the basis of a full analysis of the application market for the irregular-shaped TBM, this paper generally discusses the design features of the cutterhead of irregular-shaped TBM, i.e., the design principles of profiling cutterhead and combined cutterhead, and focuses on a series of key technologies such as overall structure design of cutterhead, geological adaptability design tool, cutting tools design and wear resistance improvement design, which have a guiding significance to cutterhead design of irregular-shaped TBM. The research provides an important reference for the design of cutterhead of more complex irregular-shaped TBM
Research Progress of Chip Types and Their Applications
Authors: Chen Zhixin , Huang Mingjun , Kang Haoyuan
Published: December 2023

Chip plays a vital role in human life. In recent years, the development of chips has sped up, and various innovations and breakthroughs have been emerging. This paper aims to discuss the research status of the types and application scenarios of chips, and introduce their classification, advantages and disadvantages, application scenarios and future prospect. The types of chips can be classified according to the processing signal, function, manufacturing process and application scenario. They have abundant advantages, so they are used in plentiful fields like automotive industry, medical rehabilitation, and Internet of Things, while there still exist several disadvantages. In the future, countries should vigorously support the development of chips, and researchers should pay attention to the shortcomings and conduct research on these weak points. This paper focuses on the characteristics and applications of chips, and expects that more people in society will pay attention to this field, laying the foundation for future development.
Application of MOFs in Hydrogen Storage
Authors: Zhou Yuzhe
Published: December 2023

This research analyzes the current energy problems and environmental problems and proposes to use hydrogen energy as a clean alternative energy source, which has high energy density and less pollution. After comparing the advantages and disadvantages of various hydrogen storage solutions, metal-organic frameworks (MOFs) are selected as the storage and transportation medium because of its large capacity, favourable reversibility, appropriate reaction conditions and relatively low density. The hydrogen storage mechanism of MOFs and the factors affecting its hydrogen storage capacity are introduced and discuss some methods to improve the storage features of MOFs. Three promising, MOFs, MOF-5, MIL-101 and NU-1501, are listed and their storage performance and specific structure are introduced. The current problems in the application and processing of partial hydrogen storage MOFs are proposed, and some feasible solutions and processing methods are introduced. Finally, the application prospects of MOFs are prospected and suitable development directions are proposed, which will be helpful for future research.
Shaping Methods of Metal–Organic Frameworks for Natural Gas Storage
Authors: Hu Chunqi
Published: December 2023

The eco-friendly advantages of cleaner fuels such as natural gas have been extensively documented. However, the practical utilization of these fuels is restricted by the limitations of existing gas storage technologies. In this discussion, this paper evaluates the broad spectrum of possibilities that gas fuels present for transforming the energy sector, while also addressing the hindrances posed by current storage technologies that impede this transition. This paper scrutinizes the practical implications of natural gas storage, employing crystalline, porous metal-organic frameworks (MOFs) while referring to the latest benchmark outcomes and ultimate storage objectives in this domain. Specifically, this delve into the industrial constraints posed by the typically powdered form of MOFs and emphasize the recent advancements in MOF shaping. In contrast to their unprocessed powder condition, the features of MOFs as shaped in this study are examined, and a full review of several structuring methods is provided. The industrial usage of MOFs in applications involving gas processing is anticipated to be accelerated by this research.
Research progress in CO2 capture technology
Authors: Xu Jiayuan
Published: December 2023

The creation of effective CO2 capture systems is a critical undertaking since carbon dioxide (CO2) emissions have a significant impact on global climate change. Carbon dioxide capture technology is an important environmental protection technology that can effectively reduce greenhouse gas emissions. In this article, the technical principles of carbon capture are introduced, along with a thorough explanation of the benefits and drawbacks of each carbon capture technology. The article also discusses the potential future directions for development of technologies. The use of activated carbon, organic amine water, amino acid and other technologies to capture carbon dioxide has been put into application. To achieve higher treatment efficiency and efficiency, new materials such as metal-organic frameworks (MOFs), biological methods, and membrane separation method are also being further explored. Overall, carbon capture technology is a technology with broad development prospects and application prospects. Although most of these technologies are still in the laboratory stage and only a small portion are in operation, they will shine brightly in the future and become a top priority in affecting climate change of Earth.
Overview of CRISPR/Cas Gene Editing System and Its Carrier System
Authors: Zhu Zihe
Published: December 2023

The CRISPR/Cas9 system, which is currently extensively employed in gene editing-related engineering, is a flexible immune system in bacteria and archaea that reacts to viruses, bacteriophages, and foreign DNA. Cas proteins can cut foreign DNA into small molecule fragments, which are then integrated into CRISPR arrays; When the relevant DNA invades again, it can be accurately identified and cut off. The discovery of the CRISPR system is a major breakthrough in biology because it operates more efficiently and concisely than the previous two generations of technology, providing a powerful tool for gene therapy and diagnosis, as well as fine medicine. With the iteration and evolution of CRISPR/Cas systems, the first problem today is not only a better system, but also how to accurately and efficiently deliver this system to the target cell or tissue. Today's mature carrier technology is roughly divided into viral and non-viral vectors, viral vectors are more easily absorbed and accepted by cells due to viral characteristics, but their problems are limited viral capacity, difficult large-scale production, immunogenicity and random insertion mutations. Non-viral vectors are now developing extremely rapidly, using a variety of materials including lipids, polymers, peptides and inorganic nanoparticles. This article mainly introduces the molecular mechanism of today's CRISPR/Cas system, introduces today's mainstream gene vector technology and proposes some improvement measures, and finally discusses the current limitations of this technology and the future development direction.