Showing 61 - 80 results of 97 for search '"Heilongjiang Province"', query time: 0.05s Refine Results
  1. 61

    Effects of Different Intertillage Practices on Soil Biochemical Properties and Soybean Yield in Soybean Fields by Mingcong Zhang, Yanhong Zhou, Chenglin Li, Cheng Yuan, Mingfen Shan, Yuxin Fan, Zhongxia Yu, Linfeng Ren, Liu Cui, Chen Wang

    Published 2025-01-01
    “…Heilongjiang Province, China, is a major soybean-producing area where low temperatures in early spring and poor soil moisture retention are the main limiting factors leading to low soybean yields. …”
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    An Airborne Gravity Gradient Compensation Method Based on Convolutional and Long Short-Term Memory Neural Networks by Shuai Zhou, Changcheng Yang, Yi Cheng, Jian Jiao

    Published 2025-01-01
    “…This method outperforms traditional neural networks’ multi-layer perceptrons (MLPs) in terms of compensation accuracy on both simulated and measured airborne gravity gradient data from Heilongjiang Province.…”
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    The Effect of Climate Change on Variations in Dew Amount in a Paddy Ecosystem of the Sanjiang Plain, China by Yingying Xu, Baixing Yan, Jie Tang

    Published 2015-01-01
    “…Due to global warming, a drying and warming trend has been observed over the last 50 years in the Sanjiang Plain of Heilongjiang Province, China, which could significantly affect the condensation of vapor in paddy ecosystems. …”
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    Field Measurement of Dynamic Compressive Stress Response of Pavement-Subgrade Induced by Moving Heavy-Duty Trucks by Lingshi An, Feng Zhang, Yongchang Geng, Bo Lin

    Published 2018-01-01
    “…In order to study the distribution characteristic of dynamic pressure of pavement-subgrade in more detail, truck loadings, truck speeds, and dynamic pressure distributions at different depths were monitored under twenty-five working conditions on the section of Qiqihar-Nenjiang Highway in Heilongjiang Province, China. The effects of truck loading, truck speed, and depth on dynamic compressive stress response can be concluded as follows: (1) increasing truck loading will increase the dynamic pressure amplitude of subgrade-pavement and dominant frequencies are close to the characteristic frequencies caused by heavy-duty trucks at the speed of 70 km/h; (2) as truck speed increases, the dynamic pressure amplitudes of measuring points have an increasing tendency; the dynamic pressure spectrums are also significantly influenced by truck speed: the higher the truck speed, the wider the spectrum and the higher the dominant frequencies; (3) as depth increases, the dynamic pressure amplitudes of measuring points decrease rapidly. …”
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  10. 70

    Damage Characteristics Caused by Deep-Hole Blasting near Normal Fault and Its Effects on Coal and Gas Outbursts by Kui Gao, Guodong Qiao, Zegong Liu, Wei Xia

    Published 2022-01-01
    “…Based on cases of coal and gas outbursts in the Didaoshenghe Coal Mine in Heilongjiang Province, China, an important reason for such incidents is considered to be the blasting areas of normal faults being disturbed by air-powered coal drilling.…”
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  11. 71

    Research on the Relationship between Business Cycle and Industrial Fluctuations in Northeast China Based on Complete Ensemble Empirical Mode Decomposition with Adaptive Noise by Yinan Zhou, Guofeng Gu, Qiushuang Ren

    Published 2021-01-01
    “…The results obtained are as follows: (1) In the three northeastern provinces of China, economic fluctuations were almost free from the influence of the primary industry, most affected by the secondary industry, and gradually influenced by the tertiary industry after the 21st century. (2) Regarding the short-term business cycle of each province, economic development was the most stable when the market and government participated in the development of the secondary industry simultaneously. (3) The midterm business cycle of Jilin Province was affected by the investment of equipment in secondary and tertiary industries, while that of Liaoning Province was affected by the investment of equipment in the secondary industry. (4) Investment in the equipment of the secondary industry and the construction of secondary and tertiary industries was the key to maintaining the stability of long-term business cycle in Heilongjiang Province, and that in the construction of secondary and tertiary industries was the key to maintaining the stability of long-term business cycles in Jilin and Liaoning Provinces.…”
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    Variations of the Reference Evapotranspiration and Aridity Index Over Northeast China: Changing Properties and Possible Causes by Liguo Cao, Zhengchao Zhou

    Published 2019-01-01
    “…Spatially, the high values of AI and ET0 were primarily at the western part of the study area except for the Heilongjiang province, and the stations showing low values were mainly distributed in the central and eastern part. …”
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    Identifying groundwater potential zones in a typical irrigation district using the geospatial technique and analytic hierarchy process by QianYu Song, Meng Ma, YuYu Liu, ZhongPeng Wang, WenYong Wu, ZhengHe Xu, Jianwen Xue

    Published 2025-12-01
    “…This study delineates Groundwater Potential Zones (GWPZs) in the Heping Irrigation District of Heilongjiang Province using GIS and AHP. The 12 key factors influencing groundwater potential (GWP) were analyzed, and a comprehensive evaluation map was created, categorizing the area into five suitability grades: 0.03% is classified as very good, 10.79% as good, 57.41% as moderate, 30.93% as poor, and 0.84% as very poor. …”
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    Research on the Operational Parameters and Performance of Key Components of an Industrial Hemp Harvester and Drier by Chao Feng, Changxi Liu, Bosheng Wang, Hang Shi, Hao Sun, Yufei Li, Jun Hu

    Published 2025-01-01
    “…Industrial hemp has significant utilization value, and China is the largest producer of industrial hemp in the world, primarily growing hemp for fiber. Heilongjiang Province is the largest area of hemp fiber cultivation in China. …”
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