Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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Rational construction of low-cost, efficient, and durable electrocatalysts for the hydrogen evolution reaction(HER) is essential to further develop water electrolysis industry. Inspired by the natural enzyme catalysis with coordination environments of catalytic sites and three-dimensional structures, we construct an efficient Ru-based …
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The main purpose of this work is to assess whether the Chinese market efficiency has changed over the years. The first chapter will provide a brief overview of the Chinese political and economic history, with a focus on the development of exchange markets. It is essential to understand the history and the crucial steps in the evolution of Chinese …
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But it increases by about 50% in the western region. Since energy intensity is the reciprocal of energy efficiency, it equals that energy efficiency for the construction sector in western China declines by 1/3. In the same way, energy efficiency of the construction sector improves by about and 40% in the eastern and central …
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eciency in construction industry has not been evaluated. To fill the research gap, we evaluate the energy efficiency of construction industry between 2011 and 2020 using the sample of 30 provinces in China. The energy eciency of construction industry is divided into the governance e-ciency and production eciency and is evaluated through
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This paper examined the research efficiency of Chinese higher education institutions with a sample of 105 universities (35 universities in each group of "Project 211", "Project 985" and general universities). In order to analyze the relative research efficiency among "Project 211"and "Project 985" and general universities, the method of Data …
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Econometric research findings demonstrate that fiscal incentives significantly benefit China's economic recovery in terms of green initiatives and energy efficiency (Chang et al., 2022b).The effects of subsidies, tax incentives, and financial assistance programs on energy efficiency were calculated to be 0.29, 0.37, and 1.98, respectively.
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China has enormous energy efficiency improvement potential according to the IEA's Efficient World Scenario (EWS). Ensuring that China seizes all efficiency opportunities in a cost-effective manner will be crucial for both China and the world's transition to low-carbon energy. Energy consumption could reach a peak by 2030 and …
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Energy technical efficiency in Chinese construction industry increased by approximately 1.6% annually, which means that the gap in energy technical efficiency among China's all regions has gradually narrowed since 2006. This is attributed to the research on the technology regarding energy conservation and emissions reduction in …
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Over the past 30 years, China has become the world's largest infrastructure market, thanks to its economic reforms and burgeoning urbanization effort.As positive and dramatic as this evolution has been, it is now possible to identify several critical issues that will bear heavily on the direction and shape of China's infrastructure planning and its …
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Firstly, carbon emission efficiency of China's construction industry is low with a clear downward trend, where the efficiency average value is about 0.8 during the whole sample period. Moreover, the carbon emission efficiency of 2009–2016 is much lower than that of 2003–2008 because the construction output made a consistent …
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Abstract: In the context of China's "double carbon" target, paying attention to regional green total. factor energy efficiency (GTFEE) is crucial for ensuring a fundamental guarantee for ...
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Stepwise construction of Pt decorated oxygen-deficient mesoporous titania microspheres with core-shell structure and magnetic separability for efficient visible-light photocatalysis. Author links open overlay panel Zhijian Li b 1, Yao Wang a 1, ... This work was supported by the National Natural Science Foundation of China (Nos. 51372041 ...
DetailsTo better reveal the regional differences in carbon emissions induced by LUCC, the concept of LUCC-induced carbon emissions efficiency (LCEE) was developed, and an analytical framework for its measurement, transfer characteristics, and driving process was built in this study. Taking Chengdu-Chongqing economic circle (CCEC) as …
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Construction weather window and efficiency analysis for the China adjacent seas was carried out using ERA5 reanalysis wind data and the hindcast wave data. Yearly averaged workloads of pile foundation construction were calculated and presented in Fig. 10. As can be seen, the workloads vary significantly in space, and the …
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To define and quantify the "Green Efficiency" of the construction industry, this study integrated greenhouse gas (GHG), air pollutant emissions, and energy consumption into the efficiency evaluation framework, which was established using data envelopment analysis (DEA) and Malmquist models to measure China's provincial green …
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A peak energy use between 1155 and 1243 Mtce is projected to occur in 2050. As China takes great efforts to cap its total energy consumption, it is important to understand the future energy use in all sectors. This paper aims to present a long-term prediction of energy use in China's construction and building sectors (CBS) up to the …
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The Chinese government proposed the establishment of China National Ecological Civilization Pilot Zone in 2016 to further explore the coordinated development of economy and environment. Fujian, Jiangxi, and Guizhou provinces were selected as the first batch of pilot zones. After years of exploration, it is necessary to discuss and …
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The purpose of this paper is to develop an efficiency measurement for the CE and explore the regional differences of construction productive efficiency across the three regions of China.,Data envelopment analysis (DEA) is an objective benchmarking methodology used for measuring the performance of construction productivity.
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In the HSR area, if we combine Japanese experience and the related know-how with highly reliable and safe components and Chinese efficient construction and manufacturing ability and highly progressive development, the results will contribute much to HSRs across the world (Zhang 2009b).
DetailsThe objective of this study is to evaluate the overall technical efficiency, labor efficiency, capital efficiency and equipment efficiency of 30 Chinese construction sectors to foster sustainable economic growth in the construction industry.,This study employed the super-efficiency data envelopment analysis (SE-DEA) and artificial neural ...
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This work was supported by National Natural Science Foundation of China (22022404, 22074050, 21904103), the Fundamental Research Funds for the Central Universities (CCNU22QN007), the Open Research Fund of State Key Laboratory of Chemo/Biosensing and Chemometrics (2021005), the Ministry of Education Key …
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Facile construction of photocatalytic cellulose-based sponge with stable flotation properties as efficient and recyclable photocatalysts for sewage treatment ... 1 School of Textiles, Zhongyuan University of Technology, No. 41 Zhongyuan Road (M), Zhengzhou, Henan Province 450007, China; Collaborative Innovation Centre of Textile and Garment ...
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@article{Zhang2023MagneticFM, title={Magnetic Field-assisted Microbial Corrosion Construction Iron Sulfides Incorporated Nickel-Iron Hydroxide towards Efficient Oxygen Evolution}, author={Xianzheng Zhang and Yanan Chen and Zhiyong Ye and Huilin Hu and Ling Lei and Feng You and Junlong Yao and Huan Yang and Xueliang Jiang}, …
DetailsChina is a world leader in capital construction. In the construction field, the shift toward prefabricated construction has become an important path for industrial transformation. This paper refers to the …
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Ensuring high energy efficiency standards for new construction may allow China to achieve its greatest potential for energy savings (Amecke et al., 2013) and GHG emissions reduction (Li and Colombier, 2009; Xu et al., 2010). The core objective that China's building energy efficiency, in the current and future strategy, must achieve is a ...
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To illustrate the effects of external MF on the biofilm, components of different corrosion biofilms are analyzed. Raman peaks of the biofilm generated by SRB corrosion at 290 and 350 cm −1 represent the vibration of Fe–S, and peaks at 150 and 510 cm −1 are assigned to the vibration of Ni–O (Fig. 2 (a)) [43].Obviously, the positive shift of Fe–S …
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Annual Report on China Building Energy Efficiency (China Construction Industry Publishing House, 2015). Buildings Energy Data Book: 2.2 Residential Sector Characteristics (US DOE, 2012).
DetailsThe utilization of rural construction land in Chinese poor counties, which is mainly used for urbanization development, construction for farmers' new housing, infrastructure development (transportation, water conservancy), industrial project, and tourist attraction development, is vital to poverty reduction efficiency (PRE), which could …
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This study describes the first nation-wide data platform including the entire spectrum of brain tumour entities, which will allow better management and more efficient application of patient data in China. Methods and analysis: The National Brain Tumor Registry of China (NBTRC) is a registry of real-word clinical data on brain tumours. It is ...
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Construction of a macromolecular structural model of Chinese lignite and analysis of its low-temperature oxidation behavior ... High water content in lignite leads to its low combustion efficiency, which hinders its large-scale utilization. Herein, lignite was dried under nitrogen atmosphere and changes in its pore structure and functional ...
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T o this. end, this paper delineates two primary objectives: (1) identifying optimal research methodologies. and index parameters for evaluating carbon emission efficiency in the construction ...
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It was found that the total factor energy efficiency change (TFEECH) and technology change (TECH) in China's construction industry was underestimated because of the environmental factors and random errors. As the construction industry generates more than 30% of global greenhouse gases and more than 40% of global urban waste …
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One of China's key initiatives has always been to coordinate the development of water resources and the economy. This research taking specific data as an example, and develop an evaluation index system of coupling coordination degree (CCD) for evaluating China's water resources utilization efficiency (WUE) and economic development level …
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This condition indicates that the efficiency of HSFC in China has not improved greatly, and the majority of provinces maintain the same or even show a decreasing trend in the construction efficiency. The EC and TC and EC indices in the eastern, central, and northeastern regions are greater than 1, while the TC indices in the …
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The conclusions are as follows: (1) The average production efficiency of the construction industry in eastern, central and western China decreases successively, and the efficiency value in eastern and central China is higher than the national average, while the efficiency value in western China is opposite, which is consistent with the previous ...
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1. Introduction. Resource-based cities are those whose leading industries involve the exploitation and processing of natural resources, such as minerals, forests, and fossil fuel (The Chinese Government, 2013a).The heavy resource dependence of resource-based cities inevitably leads to a large demand for fossil fuel, a vast quantity of CO 2 …
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Abstract*. The development objective of GEF Efficient and Green Freight Transport Project for China is to (i) improve the Recipient's institutional capacity to formulate and evaluate policies and strategies to promote green freight transport systems; and (ii) pilot innovative carbon emission. This project has three components.
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Nowadays, China insists on the strategy of ecological priority and green development, and the Yangtze River Economic Belt is a pioneering demonstration belt for the construction of ecological civilization in China. Promoting industrial ecological efficiency is of great significance to Chinese sustainable development and high-quality …
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