scholarly journals The development trend and prospect of automobile energy-saving standard system under the goal of peak carbon dioxide emissions

2021 ◽  
Vol 271 ◽  
pp. 02006
Author(s):  
Zheng Tianlei ◽  
Wang Zhao ◽  
Liu Shaohui ◽  
Bao Xiang ◽  
Liu Zhichao ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Energy Saving ◽  
Carbon Dioxide Emissions ◽  
Carbon Dioxide Emission ◽  
Development Trend ◽  
Developed Countries ◽  
Standard System ◽  
Current Status ◽  
Passenger Cars ◽  
The Development Trend

This paper conducts research on the development trend of automobile energy-saving standard system under China’s goal of peak carbon dioxide emissions by 2030. The research first sorted out the carbon dioxide emission standards and regulations of major automobile developed countries in the world, systematically analyzed the current status of China's automobile energy-saving standard system, and proposed the key problems at this stage. With the goal of peak carbon dioxide emissions as the core, the key tasks for the next phase of the construction of the automotive energy-saving standard system are proposed, including comprehensively promoting the formulation of fuel consumption standards for passenger cars and commercial vehicles from 2025 to 2030, and accelerating the construction of NEV energy-saving standard system.

The Study on Community Energy Planning and Emission Reduction in China

2012 ◽  
Vol 433-440 ◽  
pp. 1442-1446 ◽  
Author(s):  
Zhi Hua Zhou ◽  
Zi Chao Tan ◽  
Guo Qiang Yang ◽  
She Ming Qiu
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Carbon Dioxide Emissions ◽  
Carbon Dioxide Emission ◽  
Energy Structure ◽  
Regional Energy ◽  
Save Energy ◽  
Reduce Carbon Dioxide

Climate change is becoming a highlight of the world. As the world's second largest CO2 emission country, China faces increasing pressure. Energy consumption and utilizing is the major source of CO2 emissions. Optimization of the regional energy configuration can not only reduce energy consumption, but also reduce carbon dioxide emissions. Thus, it will achieve energy conservation and sustainable development. Based on the Eco-city constructed by China and Sino-Singapore, this paper calculates the regional energy-saving under the requirement of existing Energy Conservation Code, plans its energy saving quantity by taking some measurements and then predicts the carbon dioxide emission reductions. The result shows that using effective measures to save energy can reduce 227772t carbon dioxide emissions. Using renewable energy and energy saving measures will reduce 371414t CO2, which has a striking effect. So changing energy structure and using renew energy are main measures to reduce CO2 emission.

scholarly journals Measurement Models for Carbon Dioxide Emission Factors of Passenger Cars Considering Characteristics of Roads and Traffic

2021 ◽  
Vol 18 (4) ◽  
pp. 1594
Author(s):  
Guoqiang Zhang ◽  
Lianghui Wu ◽  
Jun Chen
Keyword(s):  
Carbon Dioxide ◽  
Exponential Function ◽  
Carbon Dioxide Emissions ◽  
Carbon Dioxide Emission ◽  
Road Networks ◽  
Emission Factors ◽  
Passenger Cars ◽  
Measurement Models ◽  
Double Exponential ◽  
Double Exponential Function

In order to effectively control carbon dioxide emissions of motorized vehicles, it is very important to measure their carbon dioxide emission factors. The objective of this paper was to develop measurement models for the carbon dioxide emission factors of passenger cars. Road systems of downtown areas of four typical Chinese counties were explored and 12 types of basic road networks were recognized and defined. With PTV Vissim, microscopic traffic simulation models were set up for every type of basic road network, average speeds of the simulated cars were collected, and carbon dioxide emissions were calculated using MOVES (Motor Vehicle Emission Simulator) software. For model development, the paper put forth two compound explanatory variables: the weighted average of segment lengths and the sum of critical ratios of volume to saturation flow rate. Six functional relationships for the variables were tested and the double exponential function was proven to be the most appropriate. Finally, for each of the 12 types of basic road networks, a measurement model for carbon dioxide emission factors was calibrated using the double exponential function for the variables. The measurement models can be used to estimate the carbon dioxide emissions of passenger cars concerning potential improvement schemes impacting traffic demand and/or traffic supply.

scholarly journals Current Status Investigation and Predicting Carbon Dioxide Emission in Latin American Countries by Connectionist Models

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1916 ◽  
Author(s):  
Mohammad Hossein Ahmadi ◽  
Mohammad Dehghani Madvar ◽  
Milad Sadeghzadeh ◽  
Mohammad Hossein Rezaei ◽  
Manuel Herrera ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Latin American ◽  
Carbon Dioxide Emissions ◽  
Carbon Dioxide Emission ◽  
Least Square ◽  
Current Status ◽  
Support Vector ◽  
Human Beings ◽  
Connectionist Models ◽  
Latin American Countries

Currently, one of the biggest concerns of human beings is greenhouse gas emissions, especially carbon dioxide emissions in developed and under-developed countries. In this study, connectionist models including LSSVM (Least Square Support Vector Machine) and evolutionary methods are employed for predicting the amount of CO 2 emission in six Latin American countries, i.e., Brazil, Mexico, Argentina, Peru, Chile, Venezuela and Uruguay. The studied region is modelled based on the available input data in terms of million tons including oil (million tons), gas (million tons oil equivalent), coal (million tons oil equivalent), R e w (million tons oil equivalent) and Gross Domestic Product (GDP) in terms of billion U.S. dollars. Moreover, the available patents in the field of climate change mitigation in six Latin American countries, namely Brazil, Mexico, Argentina, Peru, Chile, Venezuela and Uruguay, have been reviewed and analysed. The results show that except Venezuela, all other mentioned countries have invested in renewable energy R&D activities. Brazil and Argentina have the highest share of renewable energies, which account for 60% and 72%, respectively.

scholarly journals The Problem of Carbon Dioxide Emissions from Closed Coal Mine Shafts – The Overview and the Case Study

2016 ◽  
Vol 61 (3) ◽  
pp. 587-600
Author(s):  
Paweł Wrona ◽  
Józef Sułkowski ◽  
Zenon Różański ◽  
Grzegorz Pach
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Carbon Dioxide Emission ◽  
Mining Area ◽  
Emission Point ◽  
Water Pumping ◽  
Gas Hazard ◽  
Flow Through ◽  
Reporting Procedures

Abstract Greenhouse gas emissions are a common problem noticed in every mining area just after mine closures. However, there could be a significant local gas hazard for people with continuous (but variable) emission of these gases into the atmosphere. In the Upper Silesia area, there are 24 shafts left for water pumping purposes and gases can flow through them hydraulically. One of them – Gliwice II shaft – was selected for inspection. Carbon dioxide emission with no methane was detected here. Changes in emission and concentration of carbon dioxide around the shaft was the aim of research carried out. It was stated that a selected shaft can create two kinds of gas problems. The first relates to CO2 emission into the atmosphere. Possible emission of that gas during one minute was estimated at 5,11 kg CO2/min. The second problem refers to the local hazard at the surface. The emission was detected within a radius of 8m from the emission point at the level 1m above the ground. These kinds of matters should be subject to regular gas monitoring and reporting procedures.

Driving Factors Analysis of Carbon Dioxide Emissions in China Based on STIRPAT Model

2013 ◽  
Vol 734-737 ◽  
pp. 1910-1914 ◽  
Author(s):  
Qiao Zhi Zhao ◽  
Qing You Yan
Keyword(s):  
Economic Growth ◽  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
High Speed ◽  
Carbon Dioxide Emission ◽  
Urbanization Process ◽  
Stirpat Model ◽  
Factors Analysis ◽  
Secondary Industry

China is developing at relatively high speed, not only the regional development speed should be focused upon, but also the environmental impact of economic growth should be paid attention to, especially the level change of carbon dioxide emission. To some degree, quantity of carbon dioxide emission has become one of the most important indexes for measuring quality of a nations economic growth. Thus, this thesis is trying to analyze the driving relations between economic growth and carbon dioxide. Upon STIRPAT model, ridge regression method and elasticity theory are applied to analyze the influencing factors of carbon dioxide quantity such as the population quantity, Chinas urbanization process, per capita GDP, energy density and the percentage of the secondary industry. Correspondingly, based on the different influencing variables to carbon dioxide emission quantity, needy measures are brought out to control and decrease emissions. Feasible suggestions are trying to improve Chinas economic development quality.

scholarly journals Analysis of College Research Paper Output Based on InCites Database – Take the Northwestern Polytechnical University for Example

2016 ◽  
Vol 9 (10) ◽  
pp. 133
Author(s):  
Fan Zong ◽  
Lifang Wang
Keyword(s):  
Research Evaluation ◽  
Development Trend ◽  
Research Paper ◽  
Current Status ◽  
Coordinated Development ◽  
Research Publications ◽  
Subject Areas ◽  
Evaluation Mechanism ◽  
The Development Trend

This paper uses scientific metrology methods to analyse the current status and the development trend of the research paper output of NWPU (Northwestern Polytechnical University) based on the Incites database from 1981 to 2014. The result shows that the research publications have increased notablely. Whereas, there still has some problems need to be solved, such as low quality and non-widely distributed subject areas. This paper hereby proposes some advice that NWPU should, starting with perfecting the research evaluation mechanism, improve the internationalization level and international influence while encourage the coordinated development of new-rising subjects and interdisciplines.

scholarly journals Review and Development Trend of Digital Hydraulic Technology

2020 ◽  
Vol 10 (2) ◽  
pp. 579
Author(s):  
Qiwei Zhang ◽  
Xiangdong Kong ◽  
Bin Yu ◽  
Kaixian Ba ◽  
Zhengguo Jin ◽  
...  
Keyword(s):  
Energy Saving ◽  
Developmental Process ◽  
Development Trend ◽  
Research Status ◽  
Uniform Definition ◽  
Definition Of ◽  
The Development Trend ◽  
Exact Definition

Since the emergence of digital hydraulic technology, it has achieved good results in intelligence, integration, energy saving, etc. After decades of development, and it has also attracted wide attention in the industry. However, for many years, the definition of digital hydraulic technology has differed between researchers, and there is no uniform definition. Such a situation affects the development of it to a certain extent. Therefore, this paper gives the exact definition of digital hydraulic technology based on a large number of researches on it. At the same time, the paper analyzes the research status and developmental process of the such a technology, and we forecast the development trend of it.

scholarly journals ENERGY-RELATED CARBON DIOXIDE EMISSIONS AND ENVIRONMENTAL EFFICIENCY IN THE EUROPEAN UNION AGRICULTURE: COMPARISON OF DIFFERENT BENCHMARKING TECHNIQUES

2016 ◽  
Vol 38 (3) ◽  
pp. 192-206 ◽  
Author(s):  
Tomas Baležentis ◽  
Daiva Makutėnienė
Keyword(s):  
Carbon Dioxide ◽  
European Union ◽  
Carbon Dioxide Emissions ◽  
Carbon Dioxide Emission ◽  
Value Added ◽  
The European Union ◽  
Undesirable Output ◽  
Energy Technologies ◽  
Desirable Output ◽  
Low Performance

The literature suggests different approaches towards modelling of the environmental impact caused by the production processes. The present paper attempts to establish a framework for multicriteria comparison of agricultural sectors of the European Union Member States and identify the performance gaps in terms of energy-related carbon dioxide emission. The research relies on the two approaches, viz. the by-production approach and the multi-criteria decision making approach. The environmental performance indicators were evaluated in regards to the desirable output (gross value added), inputs, and the undesirable output (carbon dioxide emission). The results indicate that Slovakia, Estonia, Lithuania, and Hungary should attempt to improve their carbon factors by implementing cleaner energy technologies. The combinations of by-production sub-indices suggest that productivity gains are more important for Sweden, Belgium, Poland, and France. Czech Republic, Latvia, and Finland are specific with low performance in terms of both the intended production and the undesirable output. The MCDM approach identified similar trends in performance as suggested by country ranking and correlation analysis.

scholarly journals The Latest Progress and Development Trend in the Research of Ballistocardiography (BCG) and Seismocardiogram (SCG) in the Field of Health Care

2021 ◽  
Vol 11 (19) ◽  
pp. 8896
Author(s):  
Xiuping Han ◽  
Xiaofei Wu ◽  
Jiadong Wang ◽  
Hongwen Li ◽  
Kaimin Cao ◽  
...  
Keyword(s):  
Health Care ◽  
Health Assessment ◽  
Development Trend ◽  
Developed Countries ◽  
Current Status ◽  
Research Subjects ◽  
Leading Position ◽  
Important Direction ◽  
Set Up ◽  
The Developed Countries

The current status of the research of Ballistocardiography (BCG) and Seismocardiogram (SCG) in the field of medical treatment, health care and nursing was analyzed systematically, and the important direction in the research was explored, to provide reference for the relevant researches. This study, based on two large databases, CNKI and PubMed, used the bibliometric analysis method to review the existing documents in the past 20 years, and made analyses on the literature of BCG and SCG for their annual changes, main countries/regions, types of research, frequently-used subject words, and important research subjects. The results show that the developed countries have taken a leading position in the researches in this field, and have made breakthroughs in some subjects, but their research results have been mainly gained in the area of research and development of the technologies, and very few have been actually industrialized into commodities. This means that in the future the researchers should focus on the transformation of BCG and SCG technologies into commercialized products, and set up quantitative health assessment models, so as to become the daily tools for people to monitor their health status and manage their own health, and as the main approaches of improving the quality of life and preventing diseases for individuals.

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