bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Reactive Nitrogen Emissions from Maize Ethanol Production Based on the DNDC Model
Authors: Yu Shujie , Yue Wencong 
Published: April 2022

Abstract
Agricultural system is an important source of reactive nitrogen (Nr) emissions. In this study, DNDC model was established for analyzing Nr emissions in maize planting and maize ethanol production under climate change scenarios (i.e., RCPs 4.5 and 8.5). The DNDC model was applied in maize fields of Shandong Province. The Nr emissions in 2025 and 2030 under the RCPs 4.5 and 8.5 scenarios would range from 2869.24 to 2969.18 kg N/ha. An inventory of Nr emissions in maize ethanol production was obtained in this study. The results showed that compared with maize planting in other cities, maize fields in Linyi would release the biggest amount of N2O and NO, as well as the smallest amount of NH3. The study can support decision making for Nr emissions reduction in agricultural systems.
Promotion of Nanotechnology for Properties of Anode Materials in Li-ion Batteries
Authors: Gu Rui 
Published: April 2022

Abstract
In recent years, the lithium-ion battery has been considered as one of the most potential energy storage technologies. At present, with the promotion of various electronic products (such as mobile phones, computers, cameras, etc.) and the popularity of electric vehicles, the requirements for battery performance have been further enhanced. In the research of enhancing battery performance, the improvement of electrode material is the most important aspect. For the traditional carbon anode materials, its performance cannot meet the needs of the next-generation lithium-ion batteries. Therefore, it is urgent to find new generation anode materials with a high specific capacity, high power, high safety, high cycle performance, and low cost. Among many improved methods of anode materials, nanotechnology is often considered. It has a significant effect on improving the cycle life, rate performance, and safety of batteries. This paper will mainly discuss three promising anode materials (silicon, lithium titanate, and transition metal oxides) and their improvement methods based on nanotechnology, including the current research progress, advantages, and disadvantages.
Progress study on the development of lithium-sulfur batteries
Authors: Han Weixuan , Li Zheya , Wang Rizhou 
Published: April 2022

Abstract
With the rapid development of the new energy industry in recent years, the demand for lithium batteries is very urgent, and at the same time, the requirements for the performance of lithium batteries are getting higher and higher. Lithium-sulfur batteries, as a very competitive lithium battery, can reach as much as five times the energy density of traditional lithium batteries. However, due to various limitations in the reaction process, Li-S batteries also need to undergo various performance improvements to improve the efficiency of Li-S batteries and industrial applications. This paper introduces the advantages and disadvantages of lithium-sulfur batteries as well as future challenges. It also introduces the recent developments in lithium-sulfur batteries from three different aspects, i.e., material modification, structure-based modifications, and discussion from the perspective of electrolyte additives.
Possibility of Building an Electric Plane: Starting from Existing Designed Models
Authors: Zhang Yijun 
Published: April 2022

Abstract
Entering the 21st century, searches for alternative energy have become more and more significant to mitigate the gradual deterioration of the environment and the dearth of fossil fuels such as petroleum. As a result, plenty of scientists start resorting to electricity, one kind of clean energy produced by natural power like wind and water. Electricity has recently been applied to vehicles after decades of research, and the technology of the application doesn’t stop progressing. However, the application on vehicles is not just a destination but a starting point for electric aircraft. Nowadays, the research of electric aircraft has been started by several companies. This review begins with the rapid development of new energies, summarizes current existing models of electric aircraft from Airbus, Boeing, and other companies and agencies, considers the possibility of electric aircraft, and provides the prospect of building an electric aircraft in the future. The review concludes that while building electric airplanes is possible, and the size is restricted to be small enough due to the restriction of the energy density of the battery.
Analysis of the social impact of heat engine and its future application
Authors: Ke Zhenying , Xu Yang , Guo Zihao 
Published: April 2022

Abstract
This paper aims to evaluate the social impact of the heat engine and analyze the application of heat engines in the future. This paper starts with some background information on heat engines and the challenges of gas pollution and gas shortage. The concepts of efficiency and environmental friendliness of the heat engine are widely discussed, which speeds up the development of several kinds of heat engines. We discuss the application of heat engines in different industries from three main aspects: agriculture, marine engine, and aviation. They improve our daily life and provide the required energy to the community. Thermoacoustic Heat Engine (TAHE), Liquid Air Cycle Engines (LACE), and a new class of Heat engine without the expulsion of reaction mass are introduced in this paper. Furthermore, the article will cover some futures. One is artificial intelligence, and another one is about biofuel, which helps heat engines to have higher efficiency and less pollution, and also how heat engines are involved in the next decade.
Hydrogen production, storage, and transportation and grid line support application
Authors: Zhou Jiadiao 
Published: April 2022

Abstract
The clean energy demand worldwide has increased significantly with the increase in population. One of the most potential candidates to fulfill the energy requirements is renewable resources, and the most environmentally friendly fuel is hydrogen. This study concentrates on hydrogen technology and introduces its production, storage, transportation, and gridline support application. Results show that methane steam reforming and electrolysis of water are common hydrogen production methods. The electrolysis of water technique can be close to renewable energy source because of device simplicity. In addition, produced hydrogen gases or liquid are stored in natural sites such as salt caverns or vessels made of metals, polymers, and composites. The composite hydrogen vessel benefits from light weight and high-pressure limit for movable storage such as transportation, while the low-cost metal container fits the purpose of stationary storage. The fuel cell can power electric motors for busses and cars without a carbon footprint by burning hydrogen gases. Finally, the physical storage of hydrogen gases or liquid can have high scalability to store seasonal fluctuation of renewable energy to gridline.
Analysis models for China's carbon trading market: comparison and outlook
Authors: Duan Chener , Mi Yiran , Lan Ziye 
Published: April 2022

Abstract
At the national and international levels, human-induced climate change has become a significant political concern, with the large rise in carbon dioxide concentration being a pressing issue that must be addressed. Carbon trading has shown to be one of the most successful strategies to accomplish energy saving and emission reduction as a flexible tool for dealing with climate change. As the nation with the highest carbon emissions today, China’s research on its carbon trading market has a guiding significance to the globe. The study findings of different models focusing on carbon trading markets are presented from three aspects: carbon emission reduction efficiency, carbon market efficiency, and internal information change trends in the carbon market. The results show that the efficiency of China’s pilot carbon market is currently poor, with just a mediocre efficiency attained. The existing carbon market’s key issues are its low transaction volume and weak market liquidity. Based on the comprehensive review of and comparison among existing models studying the carbon trading market, we proposed plausible suggestions for future research directions and development methods of the carbon trading market, including the utilization of carbon tax, improved market transparency, and government oversight.
Research on declaration strategy of virtual power plant spot market considering transaction price risk
Authors: He Jie , Luo Xi , Zhao Wen 
Published: April 2022

Abstract
In order to control the risk of power spot market price fluctuation on the operation benefit of virtual power plant, the transaction risk of virtual power plant operator is studied, and the virtual power plant declaration strategy considering spot transaction risk is proposed. The fluctuation of spot market price may cause the profit change or even loss of virtual power plant. According to the expectation of market price fluctuation, the expected risk constraint of virtual power plant based on conditional value at risk is established to ensure that the transaction risk of virtual power plant declaration strategy is within its tolerable range. On this basis, a virtual power plant spot market declaration strategy model considering transaction price risk is proposed. The model optimizes the maximum expected return and considers the constraints including expected risk constraints. Finally, an example is constructed based on the actual data of a virtual power plant to verify the effectiveness of the proposed method.
Feasibility Invetigation of Several Hydrogen Generation & Storage Methods
Authors: Jiang Zhengtong 
Published: April 2022

Abstract
Sustainable development has always been one of the main agendas of countries all over the world, where energy issue is always a significant part of sustainable development. Finding a clean and sustainable energy to replace highly polluting and nonrenewable energy (e.g., fossil fuel) is one of the main goals of sustainable development. As a clean, safe, efficient energy with a wide range of raw materials, hydrogen is one of the important topics in energy research. Based on the goal of sustainable development, this paper selects a part of hydrogen production, transportation and storage methods for analysis. According to qualitative and quantitative investigation, this paper illustrates the feasibility of large-scale application of these methods. In addition, this paper will also explore the future development prospects of these technologies. These results offer a guideline for further development and implementation of hydrogen energy.
The hazards, treatment measures and sustainable development of electronic waste
Authors: He Zhaohua , Yue Yichen , Wang Yuyan 
Published: April 2022

Abstract
The faster upgrading and the rising consumer’s demand for electrical and electronic equipment (EEE) results in an ever-increasing number of waste electrical and electronic items (WEEE), which became a severe pollution problem at both local and global scales. This paper presents the current six categories of EEE that are widely used for electronic waste (E-waste) management worldwide and the major component of E-waste: non-hazardous materials, heavy metal, and persistent organic pollutants (POPs). To learn about E-waste’s negative impacts on both environment and the human body, this paper will show the specific polluting route in air, water, and soil. Those pollutants would affect the environment through burning and directly released into the air, penetrating and leaking into water and soil. The polluted environment and the poor sanitary conditions will further destroy people’s health. This paper shows and summarizes the development of current E-waste management, from direct landfill to chemical disposal, to today’s eco-friendly way--bioleaching. Future E-waste disposal technology needs to become more environmentally friendly and more efficient for reusable material recovery. Therefore, we hope that E-waste management can closely connect with Sustainable Development Goals (SDGs). We need to apply SDGs into every aspect of E-waste management, which can significantly reduce the adverse effects of E-waste and be beneficial for the electronic industry.
Evaluation and future development direction of paper straw and plastic straw
Authors: Qiu Ningxin , Sha Minghui , Xu Xinyu 
Published: April 2022

Abstract
In recent years, plastic pollution has become one of the environmental issues of concern. This article explores the hazards of plastic straws and analyzes whether the decision to replace plastic straws with paper straws in the context of plastic restriction is entirely environmentally friendly. The results show that plastic films used in agricultural production remain in the soil after weathering and degradation, affecting soil structure, water and nutrient transfer processes, secondary salinization, and hindering plant growth. Microplastics in terrestrial and marine ecosystems are taken up by and accumulate in organisms and enter the human food web, affecting the human central nervous system and reproductive system. This article concludes that paper straws contain harmful additives, are challenging to recycle and degrade, are costly to build, are not environmentally friendly, and have a low promotional rate by studying their life cycle, content, recycling rate, degradation rate, usage problems, and applying. The paper also introduces the advantages of some new green straws, such as bamboo straws, wheat straws, PLA straws, and stainless-steel straws, which are environmentally friendly, durable, biodegradable, recyclable, and reusable. This essay aims to find better alternatives to address the potential environmental problems associated with plastic straws and mitigate the environmental hazards associated with the use of plastic products.
Current status and development trend of dehumidification technology in low-humidity industries
Authors: Yin Heng , Yin Yonggao 
Published: April 2022

Abstract
There are few studies on dehumidification of low-humidity industries which are closely related to production, especially emerging industries. In this paper, the dehumidification demands of low-humidity industries are investigated and analyzed, and the necessity of maintaining low humidity of each industry was emphasized. It introduces the common dehumidification technologies and their applicability in different applications, and on this basis summarizes the application scope division diagram of dehumidification system for low-humidity industries, which can be used as a reference for the initial scheme selection. In the future, the research direction of humidity control technology in low-humidity industries should focus on the development of new desiccant materials, the integration of multiple dehumidification technologies and the complementarity of their advantages and disadvantages, and the development of pilot projects to determine the potential for system transformation. Finally, the existing problems are introduced to ensure that the dehumidification work of the low-humidity industries can be carried out effectively in the future.
Technical application of waste oil treatment in compound field
Authors: Yang Jing , Teng Jiahuang , Dou Mingyuan , Zou Shuai , Feng Qing , Huang Fuchuan 
Published: April 2022

Abstract
This paper introduces the technology of treating waste oil by using composite fields such as gravity field, electric field and ultrasonic .Improper treatment of waste engine oil will seriously pollute the environment, and it can be put into industrial production after appropriate pretreatment.The device pretreates and recycles the waste oil, the equipment operates stably, which can not only save the cost, but also reduce the pollution to the environment, and has good social and economic benefits.
Research progress of biogas decarbonization
Authors: Teng JiaHuang , Yang Jing , Dou MingYuan , Zou Shuai , Feng Qing , Li HaoMing , Huang FuChuan 
Published: April 2022

Abstract
Taking biogas decarbonization process as the theme, this paper introduces several kinds of process methods for producing dry ice by separating carbon dioxide based on biogas, relevant research results at home and abroad, as well as the advantages and disadvantages of various process methods. Finally, the relevant application cases and the new direction of future development are introduced. This paper introduces the biogas decarbonization process and related equipment, which provides theoretical support for future research.
Evaluation Research on Safety Management Capability at Construction Sites of Construction projects
Authors: Yu Cong , Li Ailin 
Published: April 2022

Abstract
As a pillar industry in China, the construction industry is developing rapidly. However, casualties occur frequently due to such problems as unclear division of safety responsibilities, inadequate safety management at construction sites, insufficient safety education, and insufficient supporting safety resources. Considering the constraints of safety management capability at the construction sites of construction projects. Recommendations for improvement of safety management capability are made in this paper based on the results of evaluation of actual cases and analysis of causes according to actual situations of the projects by building a model using the fuzzy comprehensive evaluation method, multiplicative synthesis and combination weight method. And entropy method on the basis of the indicator system for evaluation of safety management capability at the construction sites under the three-level indicator system established.
Study on ecological environment change of water source area of the middle route of South-to-North Water Diversion Project in the past 20 years
Authors: Cheng Kuo , Mo Ziyang 
Published: April 2022

Abstract
The South-to-North Water Diversion Project (SNWDP), which began operation in 2013, is an important step in China’s water resources development, and the middle route of SNWDP is one of the most important parts. However, this project has caused a certain negative impact on the ecological environment of Danjiangkou reservoir, the water source area of this project. This study uses DEM data and Landsat data for different years to analyze land-use changes in QGIS software and discusses the causes and impacts of the middle route of SNWDP. The results show that the present area of water and vegetation increased significantly, while the cultivated land and human area (including urban, rural and other areas of human activity) decreased obviously compared with 1999. The reasons for this change include natural conditions, engineering construction and policies, but policies such as raising the Danjiangkou dam and returning farmland to forests have played a bigger role. The impacts of SNWDP include water quality deterioration, soil erosion, changes in vegetation area, changes in biodiversity and changes in the lives of residents in the area. These impacts have positive reference significance for the construction of water conservancy undertakings in China in the future.
Impacts of Ethiopia Dam on Vegetation and Water and Ecological Countermeasures
Authors: Chen Pengyu , Liang Tengyuan , Wu Zibin 
Published: April 2022

Abstract
Ethiopia is one of the highest lying countries in Africa, known as the “Roof of Africa”. The Grand Ethiopian Renaissance Dam is established to solve the problem of electricity shortage, storing and supplying water. This study analyzes the impacts of the Renaissance Dam in Ethiopia on vegetation and water through random forest model and index map via semi-automatic classification module of QGIS’s plugin. Results show that area of vegetation around the dam decreases and the water area increases during dam construction. Based on previous studies, the dam has variable impacts on surrounding vegetation, water quality and level. Renaissance dam has had a negative impact on the surrounding vegetation and water level for decades of construction, but a positive impact on the water quality. Considering the ecological system and sustainable development as the ultimate goal, it needs to make full use of environmental assessment and establish the ecological operation mode of dam for achieving better results.
Comprehensive evaluation method for site selection of LNG bunkering stations in Bohai Rim ports
Authors: Zhao Xinzhe , Ding Wentao , Su Mengchao , Peng Yun , Song Xiangqun 
Published: April 2022

Abstract
With the introduction of emission peak and carbon neutrality strategy, green shipping has already become an urgent need for the development of water transportation industry. Using liquified natural gas (LNG)-powered ships is an effective way to deal with carbon emission, and more and more shipping companies are willing to choose it as the main ship type in the future. As the open cooperation portal to the Asia-Pacific region, the Bohai Rim region occupies an important position in China national shipping system. Focusing on the bunkering needs of LNG-powered ships in the future, ports in the Bohai Rim region should add LNG bunkering stations with reasonable layout and complete facilities. This paper constructs a comprehensive evaluation system for the site selection of LNG bunkering stations in coastal ports from five aspects: natural factors, infrastructure factors, economic factors, safety factors and policy factors, and conducts the evaluation on the alternative port areas. After comprehensive analysis, the Caofeidian Port Area of Tangshan Port is recommended as the location of LNG bunkering station.
Researches on Ecological Solidification and Melioration Effects of Plants on Silty Soft Soil
Authors: Wang Tao , Zhu Qi , Bi Shiming , Wang Jing , Fu Pin 
Published: April 2022

Abstract
Dredged soil from river and lake is a typical silty soft soil, which has a high potential for farmland utilization. However, the newly dredged soil generally has high water content and poor engineering properties, therefore, it must be dehydrated and solidified before utilization. The traditional dehydration and solidification methods have disadvantages such as high energy consumption and secondary pollution risk. A method of soil solidification and amelioration by using plants is explored in this research. Four species of Pennisetum hydridum, Sorghum bicolor × Sorghum sudanense, Typha angustifolia, and Zea mays, were used as the research objects, planted in silty soft soil. The solidification and amelioration effects of different plants were studied by observing the changes in soil mechanics and physicochemical properties before and after the experiment. The results showed that: all the four tested species showed soil solidification effects in different degrees, the Pennisetum hydridum with 0.5m planting distance showed the best effect. The four tested species increased the soil organic matter content in varying degrees, among which the mix-planting of Pennisetum hydridum and Typha angustifolia showed the best effect. Pennisetum hydridum can increase the soil alkaline hydrolyzable nitrogen(AH-N) content, Typha angustifolia can simultaneously increase the soil available phosphorus and available potassium content. In addition, the four tested species showed varying degrees of amelioration effects on physical properties. The Pennisetum hydridum shows the best amelioration effect, followed by Sorghum bicolor × Sorghum sudanense. In summary, it is feasible to use plants to solidify and ameliorate silt soft soil, which is beneficial to realize the resource utilization of dredged soil, especially suitable for agricultural land use.