Mechanical properties and microstructure of artificial sand
2024/7/1 Scanning electron microscopy (SEM) tests are conducted on artificial sand products made from stone chips in Shangqiu, Henan Province. The research findings indicate احصل على السعر
Enhancing the groundwater storage estimates by integrating MT
2024/7/1 The term “HNP” in this study refers to the eastern and northern plains of Henan Province, China. It encompasses the region east of ... Groundwater in the region mainly exists احصل على السعر
Soil and Rockfill Dams Safety Assessment for Henan Province
2023/8/31 It is of great significance to explore the spatial and temporal evolution of soil and rockfill dam deformation, ensuring the safety of people’s lives and healthy economic احصل على السعر
Frontiers Experimental Study on Preparation and Performance of ...
2022/1/5 According to the specifications of China codes (GB/T14684-2011, 2011; GB/T14685-2011, 2011), the properties of fine and coarse aggregates were measured.The احصل على السعر
Experimental study on tensile strength development of concrete
2017/5/1 Manufactured sand crushed from stone or gravel, also known as machine-made sand, artificial sand or crushed-stone sand, has been used as a substitute of natural sand in احصل على السعر
The daily output of machine-made sand in Qixian County Henan
[The daily output of machine-made sand in Qixian County Henan exceeds 50,000 tons] On May 21, 2021, the construction and production operation of the super-large high-quality machine احصل على السعر
Influence of Machine-Made Sand Performance on Concrete
2021/1/27 E3S Web of Conferences, open access proceedings in environment, ... KZJ New Materials Group Henan Co., Ltd., Xinxiang, Henan 453731, China . ... The MB value of احصل على السعر
Influence of Machine-Made Sand Performance on Concrete
linear relationship between the MB value of machine-made sand and the stone powder content. It can be seen from Table 2-5 that the selected machine-made sand has high calcium oxide احصل على السعر
Data in Brief - ResearchGate
88 consisted of y ash, slag and silica fume, the crushed stone and the manufactured sand. The cement fl ’ 89 compressive strength and tensile strength at 28 days ranged in 35.5 63.4 MPa احصل على السعر
Analysis on Research Status of Road Performance of Machine
2020/10/1 In order to analyze the application status of machine-made sand in concrete pavement structure, and discuss new ideas for the development of machine-made sand احصل على السعر
Delineation of groundwater prospective zones using multivariate
2024/3/29 Groundwater is an essential resource that meets all of humanity’s daily water demands, supports industrial development, influences agricultural output, and maintains احصل على السعر
Soil and Rockfill Dams Safety Assessment for Henan
As of 2022, Henan Province has 28 large dams with a storage capacity of 6045 million m3, including 25 soil and rockfill dams, accounting for 89.3% of the total number of large dams in احصل على السعر
Analysis of Hydrogeochemical Characteristics and
2021/12/9 Hexavalent chromium contamination in groundwater has become a very serious and challenging problem. Identification of the groundwater chemical characteristics of the sites and their control mechanisms for احصل على السعر
Coupling Coordination Degree of Land, Ecology, and Food and Its ...
2024/9/14 From an ecological perspective, the forest coverage rate in Henan Province reached 24.14% in 2020, with the overall ecological environment quality continuously احصل على السعر
(PDF) A New Machine Learning Approach for parameter
2021/1/1 This is an open access article distrib uted under the terms of the ... Henan Province is located in th e central-eastern ... in Henan province of China, a new machine احصل على السعر
Study on Strength Developing Regularity of Concrete with Proto-Machine ...
2012/4/26 The proto-machine-made sand is a new environmental protection manufactured material, which is produced by technical improvement of stone cleaned by water firstly before احصل على السعر
About - hehong
Henan Hehong Machinery Technology Co., Ltd. is a machinery manufacturing enterprise integrating research and development, processing and manufacturing, installation and احصل على السعر
Modelling flash floods in ungauged mountainous catchments
Henan province, China: A machine learning approach for parameter regionalization ... Proportion of sand and clay area (%); proportion of sandy loam Henan Hydrological Bureauاحصل على السعر
Henan Qunying Machine Manufacture Co., Ltd. - Made-in
Henan Qunying Machinery Manufacturing Co. Ltd is a collection of scientific research, production, sales, service as one of the large modern joint-stock enterprises, the company is located in احصل على السعر
The Spatiotemporal Variations in and Propagation of
2024/10/18 Additionally, Henan Province is a typical multi-basin aggregation area, spanning four major river basins: the Hai River, the Yellow River, the Yangtze River, and the احصل على السعر
Experimental study on tensile strength development of concrete
2017/5/1 Manufactured sand crushed from stone or gravel, also known as machine-made sand, artificial sand or crushed-stone sand, has been used as a substitute of natural sand in احصل على السعر
Metro System Inundation in Zhengzhou, Henan Province, China
2022/7/29 In this study, we investigated the flooding accident that occurred on Metro Line 5 in the capital city of Zhengzhou, Henan Province, China. On 20 July 2021, owing to an احصل على السعر
A New Machine Learning Approach for parameter
A New Machine Learning Approach for parameter regionalization of Flash Flood Modelling in Henan Province, China Sijia Hao1,2, Qiang Ma2,*, Xiaoyan Zhai2, Guomin Lyu2, Suqi Fan1,2, احصل على السعر
Spatiotemporal Dynamics of Ecosystem Water Yield Services and
2024/9/9 Water yield (WY) service is the cornerstone of ecosystem functionality. Predicting and assessing the impact of land use/land cover (LULC) changes on WY is imperative for a احصل على السعر
Experimental study on tensile strength development of concrete
2017/5/1 Manufactured sand crushed from stone or gravel, also known as machine-made sand, artificial sand or crushed-stone sand, has been used as a substitute of natural sand in احصل على السعر
Metro System Inundation in Zhengzhou, Henan
2022/7/29 In this study, we investigated the flooding accident that occurred on Metro Line 5 in the capital city of Zhengzhou, Henan Province, China. On 20 July 2021, owing to an extreme rainstorm, serious inundation occurred in the احصل على السعر
A New Machine Learning Approach for parameter
A New Machine Learning Approach for parameter regionalization of Flash Flood Modelling in Henan Province, China Sijia Hao1,2, Qiang Ma2,*, Xiaoyan Zhai2, Guomin Lyu2, Suqi Fan1,2, احصل على السعر
Spatiotemporal Dynamics of Ecosystem Water Yield Services and
2024/9/9 Water yield (WY) service is the cornerstone of ecosystem functionality. Predicting and assessing the impact of land use/land cover (LULC) changes on WY is imperative for a احصل على السعر
Henan Anshun Machinery Equipment Co., Ltd.-Crusher, Sand Making Machine ...
Henan ANSHUN Machinery Equipment Co., Ltd. is a modern enterprise integrating research and development, production, sales, and service of mining crushing, construction sand and gravel احصل على السعر
Study of the Interaction between Yellow River Water and ... - MDPI
2022/7/7 Determining the interaction between surface water and groundwater is crucial for the protection of groundwater resources. Based on the data of natural geography, geological احصل على السعر
Spatio-temporal characteristics of adaptability between crop
2020/5/20 Henan Province is currently implementing the groundwater protection plan, and will gradually control the exploitation of groundwater in the future. Therefore, the adaptability of احصل على السعر
Carbon Storage Change Analysis and Emission Reduction ... - MDPI
2021/2/14 In terms of the contribution of land use to carbon emissions, food security land in Henan Province was responsible for 4.56 million tons in 1990, which declined slightly to 4.37 احصل على السعر
Application of the Reconstructed Solar-Induced Chlorophyll
2024/8/28 Solar-induced chlorophyll fluorescence (SIF) serves as a proxy indicator for vegetation photosynthesis and can directly reflect the growth status of vegetation. Using SIF احصل على السعر
Optimizing Land Use for Carbon Neutrality: Integrating ... - MDPI
2024/1/15 This study aims to examine the impact of land use variations on carbon emissions by incorporating the development of photovoltaics as a scenario. To meet this end, احصل على السعر
Artificial Sand - What Is It and How to Make It? Fote Machinery
2024/7/15 Designed for heavy-duty working conditions, the processing capacity is up to 2,000 t/h. ... sand making and sand washing. Machine-made sand has unlimited development احصل على السعر
Influence of Machine-Made Sand Performance on Concrete
2021/1/1 Influence of machine-made sand quality on concrete performance.[D] Social Sciences Edition,2016. Research on performance of artificial sand with different fineness احصل على السعر
Evolution and Analysis of Water Yield under the Change of Land
2024/9/9 Understanding the interrelationships between land use, climate change, and regional water yield is critical for effective water resource management and ecosystem احصل على السعر
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