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高亚军,李生秀
《中国工程科学》 2002年 第4卷 第7期 页码 74-79
结合多年的田间试验研究,对前人诸多研究结果进行了总结和深入分析。结果表明:农田水肥效应大小与试验方法有关,田间试验与模拟试验得到的结论相反。主要原因在于研究中"水"的概念各不相同,从旱棚试验或盆栽试验的结果推断水肥效应与实际情况相距较大。多数情况下,养分亏缺仍是北方旱区作物增产的主要限制因子。灌水的效果取决于土壤底墒、生育期降水、土壤肥力及灌水时期等各种因素。在现有的水资源条件下,提高养分供应水平是北方旱区大部分农田作物增产的主要途径。加强夏闲期降水的蓄积、提高土壤底墒是冬麦区作物高产的重要条件。
Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN
《环境科学与工程前沿(英文)》 2009年 第3卷 第1期 页码 38-47 doi: 10.1007/s11783-009-0007-6
关键词: step-feed biological contact oxidation process (SBCOP) inter-recycle biological contact oxidation process (IBCOP) river water removal efficiency nitrogen transformation the Dianchi Lake watershed
ENHANCING RAINFALL-RUNOFF POLLUTION MODELING BY INCORPORATION OF NEGLECTED PHYSICAL PROCESSES
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 553-565 doi: 10.15302/J-FASE-2023519
The growing need to mitigate rainfall-runoff pollution, especially first flush, calls for accurate quantification of pollution load and the refined understanding of its spatial-temporal variation. The wash-off model has advantages in modeling rainfall-runoff pollution due to the inclusion of two key physical processes, build-up and wash-off. However, this disregards pollution load from wet precipitation and the relationship between rainfall and runoff, leading to uncertainties in model outputs. This study integrated the Soil Conservation Service curve number (SCS-CN) into the wash-off model and added pollutant load from wet precipitation to enhance the rainfall-runoff pollution modeling. The enhanced wash-off model was validated in a typical rural-residential area. The results showed that the model performed better than the established wash-off model and the commonly-used event mean concentrations method, and identified two different modes of pollution characteristics dominated by land pollution and rainfall pollution, respectively. In addition, the model simulated more accurate pollutant concentrations at high-temporal-resolution. From this, it was found that 12% of the total runoff contained 80% to 95% of the total load for chemical oxygen demand, total N, and total P, whereas it contained only 15% of the total load for NH4+-N. The enhanced model can provide deeper insights into non-point pollution mitigation.
关键词: Erhai Lake field experiment non-point source pollution load rainfall runoff wash-off model
Full scale amendment of a contaminated wood impregnation site with iron water treatment residues
Sanne Skov NIELSEN, Peter KJELDSEN, Rasmus JAKOBSEN
《环境科学与工程前沿(英文)》 2016年 第10卷 第4期 doi: 10.1007/s11783-016-0842-1
关键词: Field experiment Iron oxide Arsenic Stabilization Wood preservation sites
Design and experiment of a novel pneumatic soft arm based on a deployable origami exoskeleton
《机械工程前沿(英文)》 2023年 第18卷 第4期 doi: 10.1007/s11465-023-0770-2
关键词: pneumatic soft arm soft airbag deployable origami exoskeleton bistable characteristics cargo-loading capacity
《环境科学与工程前沿(英文)》 2023年 第17卷 第11期 doi: 10.1007/s11783-023-1734-9
● Photochemical conversion of chlorobenzene (CB) on α-Fe2O3 was evaluated.
关键词: Photochemical conversion Chlorobenzene α-Fe2O3 PCDD/Fs Mineral particulate
Biaxial tensile-compressive experiment of concrete at high temperatures
SONG Yupu, ZHANG Zhong, QING Likun, YU Changjiang
《结构与土木工程前沿(英文)》 2007年 第1卷 第1期 页码 94-98 doi: 10.1007/s11709-007-0009-z
关键词: increase Offshore Engineering temperature relationship addition
Yong SHUAI, Xinlin XIA, Heping TAN
《能源前沿(英文)》 2010年 第4卷 第4期 页码 488-495 doi: 10.1007/s11708-010-0007-z
关键词: Monte Carlo method solar energy radiation performance cavity receiver
Zhijie HUANG, Xiaodan REN, Zuyu CHEN, Daosheng LING
《结构与土木工程前沿(英文)》 2019年 第13卷 第6期 页码 1350-1362 doi: 10.1007/s11709-019-0559-x
关键词: underwater explosion centrifuge experiment shock load dynamic response accumulated shock impulse
Parameter for judging reactivity of coal and coke
HE Hongzhou, LUO Zhongyang, CEN Kefa
《能源前沿(英文)》 2008年 第2卷 第3期 页码 354-358 doi: 10.1007/s11708-008-0052-z
关键词: thermogravimetric analysis specific maximum different lithotype experiment TGA experiment
How did Archimedes discover the law of buoyancy by experiment?
Hidetaka KUROKI
《机械工程前沿(英文)》 2016年 第11卷 第1期 页码 26-32 doi: 10.1007/s11465-016-0368-z
After Archimedes and Vitruvius era, for more than 2000 years, it has been believed that the displaced water measurement of golden crown is impossible, and at his Eureka moment, Archimedes discovered the law of buoyancy (Proposition 7 of his principles) and proved the theft of a goldsmith by weighing the golden crown in water.
A previous study showed that a small amount of displaced water was able to be measured with enough accuracy by the introduced method. Archimedes measured the weight of displaced water. He did not find the law of buoyancy but rather specific gravity of things at the moment.
After which, Archimedes continued to measure the specific gravity of various solids and fluids. Through these measurements, he reached the discovery of the law of buoyancy directly by experiment. In this paper, the process to the discovery of Archimedes’ principle (Proposition 5) is presented.
关键词: Archimedes’ principle buoyancy specific gravity Eureka Vitruvius displaced water balance floating body
Analysis and experiment on structure parameters for an energy reclaiming suspension
CHEN Shi‘an, HE Ren, LU Senlin
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 200-204 doi: 10.1007/s11465-008-0024-3
关键词: Experimental investigation analogous coulomb hydraulic performance suspension
Recent progress in electric-field assisted combustion: a brief review
《能源前沿(英文)》 2022年 第16卷 第6期 页码 883-899 doi: 10.1007/s11708-021-0770-z
关键词: electric field combustion flame stabilization emission reduction flame propagation
Analysis and experiment of controllability of magnetorheological fluids based on micro-pipeline
Yongqing SU, Yikuan SONG, Jiguang YUE
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 339-344 doi: 10.1007/s11465-009-0048-3
关键词: Magneto-rheological fluids (MRF) micro-pipeline coupled model multi-physics simulation
A MATLAB code for the material-field series-expansion topology optimization method
《机械工程前沿(英文)》 2021年 第16卷 第3期 页码 607-622 doi: 10.1007/s11465-021-0637-3
关键词: MATLAB implementation topology optimization material-field series-expansion method bounded material field dimensionality reduction
标题 作者 时间 类型 操作
Field experiment on biological contact oxidation process to treat polluted river water in the Dianchi
Lu LI, Shuguang XIE, Hui ZHANG, Donghui WEN
期刊论文
Full scale amendment of a contaminated wood impregnation site with iron water treatment residues
Sanne Skov NIELSEN, Peter KJELDSEN, Rasmus JAKOBSEN
期刊论文
Atmospheric heterogeneous reaction of chlorobenzene on mineral -FeO particulates: a chamber experiment
期刊论文
Biaxial tensile-compressive experiment of concrete at high temperatures
SONG Yupu, ZHANG Zhong, QING Likun, YU Changjiang
期刊论文
Numerical simulation and experiment research of radiation performance in a dish solar collector system
Yong SHUAI, Xinlin XIA, Heping TAN
期刊论文
Centrifuge experiment and numerical analysis of an air-backed plate subjected to underwater shock loading
Zhijie HUANG, Xiaodan REN, Zuyu CHEN, Daosheng LING
期刊论文
Analysis and experiment on structure parameters for an energy reclaiming suspension
CHEN Shi‘an, HE Ren, LU Senlin
期刊论文
Analysis and experiment of controllability of magnetorheological fluids based on micro-pipeline
Yongqing SU, Yikuan SONG, Jiguang YUE
期刊论文