检索范围:
排序: 展示方式:
Quan Yuan, Hui Gong, Hao Xi, Kaijun Wang
《环境科学与工程前沿(英文)》 2020年 第14卷 第3期 doi: 10.1007/s11783-020-1226-0
关键词: Anaerobic plug-flow feeding mode Anaerobic mixed-flow mode Fermentation pretreatment Substrate gradient Penetration depth
Organic and inorganic phosphorus uptake by bacteria in a plug-flow microcosm
Jinbo ZHAO, Xuehua LIU
《环境科学与工程前沿(英文)》 2013年 第7卷 第2期 页码 173-184 doi: 10.1007/s11783-013-0494-3
Yi Chen, Shilong He, Mengmeng Zhou, Tingting Pan, Yujia Xu, Yingxin Gao, Hengkang Wang
《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1069-0
The UASB system successfully treated sulfamethoxazole pharmaceutical wastewater. High concentration sulfate of this wastewater was the main refractory factor. UASB recovery performance after a few days of inflow arrest was studied. The optimal UASB operating conditions for practical application were determined.
关键词: Up-flow anaerobic sludge blanket (UASB) Methane production Sulfate reduction Sulfamethoxazole pharmaceutical wastewater Electron flow Recovery
Anaerobic treatment of wastewater containing methanol in up-flow anaerobic sludge bed (UASB) reactor
LIN Yishan, HE Yanling, MENG Zhuo, YANG Shucheng
《环境科学与工程前沿(英文)》 2008年 第2卷 第2期 页码 241-246 doi: 10.1007/s11783-008-0040-x
关键词: homogeneous spherical influent alkalinity process anaerobic treatment
《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1385-z
• UASB reactor can work efficiently with high COD/SO42- ratios when SDBS exists.
关键词: Up-flow anaerobic sludge blanket Organic sulfur Sodium dodecylbenzene sulfonate COD/SO42− ratio Microbial community
Nitesh Ganesh BHAT, B. Rajanarayan PRUSTY, Debashisha JENA
《能源前沿(英文)》 2017年 第11卷 第2期 页码 184-196 doi: 10.1007/s11708-017-0465-7
关键词: battery electric vehicle extended cumulant method photovoltaic generation plug-in hybrid electric vehicle probabilistic load flow
Technical measures to achieve a cleaner production mode for recycled paper mills
Chao HE, Zhaolin GU, Shucheng YANG, Jidong LIANG, Weina DAI, Yanling HE
《环境科学与工程前沿(英文)》 2010年 第4卷 第4期 页码 466-474 doi: 10.1007/s11783-010-0242-x
关键词: water reuse zero discharge anaerobic treatment recycled paper cleaner production
Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future
Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG
《能源前沿(英文)》 2012年 第6卷 第2期 页码 107-111 doi: 10.1007/s11708-012-0182-1
ZHOU Xiaoyan, WEN Xianghua, FENG Yan
《环境科学与工程前沿(英文)》 2007年 第1卷 第1期 页码 89-94 doi: 10.1007/s11783-007-0017-1
关键词: enzyme production fed-batch culture nitrogen-limited inoculation mmol/L
通过一个等价雷诺数揭示层流到湍流的转捩区域 Article
陈晓东
《工程(英文)》 2019年 第5卷 第3期 页码 576-579 doi: 10.1016/j.eng.2018.09.013
Flow transition from laminar to turbulent mode (and vice versa)—that is, the initiation of turbulence—is one of the most important research subjects in the history of engineering. Even for pipe flow, predicting the onset of turbulence requires sophisticated instrumentation and/or direct numerical simulation, based on observing the instantaneous flow structure formation and evolution. In this work, a local Reynolds number equivalence γ (ratio of local inertia effect to viscous effect) is seen to conform to the Universal Law of the Wall, where γ = 1 represents a quantitative balance between the abovementioned two effects. This coincides with the wall layer thickness (y+ = 1, where y+ is the dimensionless distance from the wall surface defined in the Universal Law of the Wall). It is found that the characteristic of how the local derivative of γ against the local velocity changes with increasing velocity determines the onset of turbulence. For pipe flow, γ ≈ 25, and for plate flow, γ ≈ 151.5. These findings suggest that a certain combination of γ and velocity (nonlinearity) can qualify the source of turbulence (i.e., generate turbulent energy). Similarly, a re-evaluation of the previous findings reveals that only the geometrically narrow domain can act locally as the source of turbulence, with the rest of the flow field largely being left for transporting and dissipating. This understanding will have an impact on the future large-scale modeling of turbulence.
Sustainable intensification of agriculture is key to feeding Africa in the 21st century
Shenggen FAN
《农业科学与工程前沿(英文)》 2020年 第7卷 第4期 页码 366-370 doi: 10.15302/J-FASE-2020342
Africa in facing numerous challenges in the 21st century in feeding its rapidly increasing population. Land resources have become limited due to urbanization and industrialization. The existing agricultural land has been degraded and soil fertility has declined due to unsustainable farming practices. Despite of progress made in the past several decades, hunger and malnutrition in Africa still hinder health, human development and economic growth, which will become even worse in the future if proper measures are not taken. Sustainable intensification is the only solution to tackling both environmental sustainability including climate change and malnutrition, i.e., to produce more foods in terms of nutrients human body needs with less natural resources and carbon emissions. To achieve this vision, innovations in technologies, policies and institutions are essential. The Chinese experience in Agricultural Green Development (AGD) can be shared with Africans when the region is pursuing its sustainable intensification strategy.
关键词: Africa sustainable intensification Agricultural Green Development climate change malnutrition
张明亮,沈永明
《中国工程科学》 2007年 第9卷 第8期 页码 92-96
从求解一维圣维南方程组的Preissmann 4点隐式差分格式出发, 建立了一维河网及渠网数学模型,并对计算中所涉及的一些关键技术问题进行了较为详细的阐述。利用模型对树状渠网的恒定流及复杂的环状渠网和河网的非恒定流对模型进行验证。验证结果表明,水位和流量过程计算值与Islam的计算值吻合较好,各渠道的流量分配计算结果精度也较高,为河网及渠网的水量调度提供了一个较为简便实用的工具,为建立渠网及河网的综合水质生态数学模型打下基础。
关键词: Preissmann格式 渠网及河网 流量分配 水质模型
Anefficient quadrature demodulator for medical ultrasound imaging
Hao ZHOU,Yin-fei ZHENG
《信息与电子工程前沿(英文)》 2015年 第16卷 第4期 页码 301-310 doi: 10.1631/FITEE.1400205
关键词: B-mode ultrasound imaging Color flow imaging Quadrature demodulation Finite impulse response filter
黄锐,杨立中,范维澄
《中国工程科学》 2001年 第3卷 第11期 页码 45-48
高层住宅主支式排烟道的主烟道中烟气流动可看作是一维定常垂直摩擦管流。通过计算管流流动相与颗粒相的物理参数沿管程分布情况,确定了颗粒相流动情况,进而判断烟气排放情况。这受到排烟系统高度、烟道管径,及材料组成等因素的影响,通过预设排烟系统高度并保证良好排放情况,求得主烟道管径应满足的条件。这使得布设排烟道时可以找到一个较好的横截面尺寸,既满足烟气排放条件,又节约修建材料。
Dissolved methane in anaerobic effluent: Emission or recovery?
《环境科学与工程前沿(英文)》 2022年 第16卷 第4期 doi: 10.1007/s11783-022-1537-4
关键词: Anaerobic treatment Municipal wastewater Dissolved methane Methane recovery Carbon emission
标题 作者 时间 类型 操作
Aerobic granular sludge formation based on substrate availability: Effects of flow pattern and fermentation
Quan Yuan, Hui Gong, Hao Xi, Kaijun Wang
期刊论文
Organic and inorganic phosphorus uptake by bacteria in a plug-flow microcosm
Jinbo ZHAO, Xuehua LIU
期刊论文
Feasibility assessment of up-flow anaerobic sludge blanket treatment of sulfamethoxazole pharmaceutical
Yi Chen, Shilong He, Mengmeng Zhou, Tingting Pan, Yujia Xu, Yingxin Gao, Hengkang Wang
期刊论文
Anaerobic treatment of wastewater containing methanol in up-flow anaerobic sludge bed (UASB) reactor
LIN Yishan, HE Yanling, MENG Zhuo, YANG Shucheng
期刊论文
Deciphering the effect of sodium dodecylbenzene sulfonate on up-flow anaerobic sludge blanket treatment
期刊论文
Cumulant-based correlated probabilistic load flow considering photovoltaic generation and electric vehicle
Nitesh Ganesh BHAT, B. Rajanarayan PRUSTY, Debashisha JENA
期刊论文
Technical measures to achieve a cleaner production mode for recycled paper mills
Chao HE, Zhaolin GU, Shucheng YANG, Jidong LIANG, Weina DAI, Yanling HE
期刊论文
Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future
Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG
期刊论文
Influence of glucose feeding on the ligninolytic enzyme production of the white-rot fungus Phanerochaete
ZHOU Xiaoyan, WEN Xianghua, FENG Yan
期刊论文
Sustainable intensification of agriculture is key to feeding Africa in the 21st century
Shenggen FAN
期刊论文