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1Academic Journal
Alternate Title: Research on digital pre-distortion compensation method of BDS B2 signal. (English)
المصدر: Systems Engineering & Electronics; Nov2024, Vol. 46 Issue 11, p3827-3834, 8p
مصطلحات موضوعية: BEIDOU satellite navigation system, POWER spectra, SIGNAL filtering, STATISTICAL correlation, POWER amplifiers
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2Academic Journal
Alternate Title: Hyperspectral inversion study of Vertisol soil moisture content based on ensemble learning. (English)
المصدر: Journal of Agricultural Resources & Environment / Nongye Ziyuan yu Huanjing Xuebao; 2023, Vol. 40 Issue 6, p1426-1434, 9p
مصطلحات موضوعية: PARTIAL least squares regression, SOIL moisture, SUPPORT vector machines
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3Academic Journal
Alternate Title: Spatio-temporal patterns of land use spatial conflict of important wetlands in ecological fragile area: A case study of Yulin City. (English)
المصدر: Ecological Science; Sep2023, Vol. 42 Issue 5, p188-195, 8p
مصطلحات موضوعية: WATER quality, WATER security, GEOGRAPHIC information system software, ENVIRONMENTAL quality, LAND use
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4Academic Journal
Alternate Title: Influence analysis of transmission channel phase distortion on the quality of non-constant envelope signal. (English)
المصدر: Systems Engineering & Electronics; Jun2023, Vol. 45 Issue 6, p1597-1605, 9p
مصطلحات موضوعية: GLOBAL Positioning System, ARTIFICIAL satellites in navigation, SATELLITE positioning, SIGNALS & signaling, PERFORMANCE theory
مصطلحات جغرافية: CHINA
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5Academic Journal
Alternate Title: Hyperspectral inversion model of Zn in high standard farmland soil in Xiping County. (English)
المصدر: Journal of Agro-Environment Science; 2022, Vol. 41 Issue 10, p2223-2231, 9p
مصطلحات موضوعية: LEAST squares, SPECTRAL reflectance, SOIL sampling, LOGARITHMS
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6Academic Journal
Alternate Title: Impact of narrowband interference on the BDS-3 B2 signal quality. (English)
المصدر: Systems Engineering & Electronics; Jul2022, Vol. 44 Issue 7, p2286-2292, 7p
مصطلحات موضوعية: ARTIFICIAL satellites in navigation, POWER spectra, ACQUISITION of data, BANDWIDTHS, CURVES, MEASUREMENT errors
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7Academic Journal
Alternate Title: Eurotium cristatum Biotransformation Plant Phenolic Compounds and Affects Their Biological Activities: A Review. (English)
المصدر: Food Research & Development; 2022, Vol. 43 Issue 8, p193-201, 9p
مصطلحات موضوعية: PHENOLS, BIOCONVERSION, CATECHIN, FOOD industry, POLYPHENOL oxidase, TEA, AMYLASES
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8Academic Journal
Alternate Title: Molecular composition and structural model of resinite in Fushun resinitic liptobiolith. (English)
المصدر: Coal Science & Technology (0253-2336); Jun2021, Vol. 49 Issue 6, p135-144, 10p
مصطلحات موضوعية: ALIPHATIC compounds, SMALL molecules, MOLECULAR weights, AMBER, CARBOXYL group, NAPHTHALENE derivatives, BENZENE derivatives
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9Academic Journal
Alternate Title: Analysis of Microbial Community Structure Changes of Wheat Bran during Fermentation by High-throughput Sequencing. (English)
المصدر: Shipin Kexue/ Food Science; 2020, Vol. 41 Issue 24, p102-109, 8p
مصطلحات موضوعية: LACTIC acid bacteria, WHEAT bran, PATHOGENIC bacteria, PRINCIPAL components analysis, MICROBIAL communities, ENTEROBACTER
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10Academic Journal
Alternate Title: Study on the flexural mechanical properties of self-compacting concrete beams under the action of freeze-thaw. (English)
المصدر: China Sciencepaper; Oct2020, Vol. 15 Issue 10, p1157-1176, 6p
مصطلحات موضوعية: CONCRETE beams, FREEZE-thaw cycles, SELF-consolidating concrete, FAILURE mode & effects analysis, BEARINGS (Machinery)
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11
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12Report
Relation: 海洋与湖沼; http://ir.qdio.ac.cn/handle/337002/175400
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13Report
Relation: 海洋学报; http://ir.qdio.ac.cn/handle/337002/173426
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14Report
Relation: 海洋与湖沼; http://ir.qdio.ac.cn/handle/337002/172746
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15Academic Journal
Alternate Title: Effects of Açaí and its alcohol extract on the immunity, endocrine hormone and neurotransmitter of mice with deficiency-heat and deficiencycold pattern. (English)
المصدر: Journal of Beijing University of Traditional Chinese Medicine; 2019, Vol. 42 Issue 7, p560-565, 6p
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16Report
Relation: 农业机械学报; http://ir.rcees.ac.cn/handle/311016/40375
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17Report
Relation: 环境科学; 赵庆良,马慧雅,任玉芬,等. 利用delta~(15)N-NO_3~-和 delta~(18)O-NO_3~-示踪北京城区河流硝酸盐来源[J]. 环境科学,2016,37(5):1692-1698.; http://ir.rcees.ac.cn/handle/311016/36514
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18Academic Journal
المساهمون: 100191,北京大学神经科学研究所教育部和卫生部神经科学重点实验室, 10019北京大学神经科学研究所教育部和卫生部神经科学重点实验室, 北京大学第三医院神经科
مصطلحات موضوعية: 微量元素组学 无症状性临床前期阿尔茨海默病 相关性 Trace element profiling Preclinical Alzheimer disease Relationship
Relation: 神经疾病与精神卫生.2014,14,(4),325-329.; 1127460; http://hdl.handle.net/20.500.11897/266171
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19Academic Journal
Alternate Title: Energy loss analysis of electromagnetic induction heating device for magnesium reduction tank. (English)
المصدر: Journal of Mechanical & Electrical Engineering; Feb2018, Vol. 35 Issue 2, p175-180, 6p
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20Academic Journal
المساهمون: 100176,国家康复辅具研究中心附属康复医院, 北京大学医学部教育部和卫生部神经科学重点实验室, 北京体育大学生命科学院
مصطلحات موضوعية: 规律性运动, 水迷宫, α-分泌酶/ADAM10活性, 学习记忆, Aβ, Regular exercises, Water maze, α-secretase/ADAM10 activity, Learning and memory
Relation: 神经疾病与精神卫生.2013,13,(3),232-234.; 1259580; http://hdl.handle.net/20.500.11897/288634