Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 213

Conference Videos 7

Year

2023 12

2022 9

2021 23

2020 21

2019 16

2018 6

2017 10

2016 5

2015 8

2014 7

2013 7

2012 5

2011 10

2010 9

2009 29

2008 7

2007 8

2006 10

2005 3

2004 4

open ︾

Keywords

earthquake 13

Wenchuan Earthquake 10

China's space activities 4

earthquake prediction 4

Adsorption 2

Chaos 2

Fractional order 2

Human activities 2

Microbial community 2

Multi-agent system 2

cable-stayed bridge 2

nuclear power plant 2

reservoir 2

second-order 2

seismic hazard 2

selection 2

strong earthquake prediction 2

uncertainty 2

1 1

open ︾

Search scope:

排序： Display mode:

Prediction and thoughts of the Wenchuan large earthquake

Geng Qingguo

Strategic Study of CAE 2009, Volume 11, Issue 6, Pages 123-128

Abstract:

According to many years of earthquake prediction exploring work basedon analysis of drought -earthquake relations and ordered strong earthquake activities and the methodof strong geomagnetic storm combinations,the paper briefly reviewed the consecutive three year studiesof seismic activities in the Sichuan-Gansu-Qinghai-Shaanxiregion, especially within the Sichuan Abazhouarea, and revealed the main points of the "Urgent advice to enhance strong earthquake short-term

Keywords： Wenchuan Large Earthquake prediction drought-earthquake relations strong earthquake activities order strong geomagnetic storm combination method

HTML PDF Collect

Features of seismic hazard in large dam projects and strong motion monitoring of large dams

Martin WIELAND,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1, Pages 56-64 doi: 10.1007/s11709-010-0005-6

Abstract: The May 12, 2008 Wenchuan earthquake has damaged 1803 dams and reservoirs, and 403 hydropower plantsThe different features of earthquake hazard are presented, i.e., ground shaking, faulting and mass movementsThe earthquake behaviors of the Sefid Rud, Zipingpu and Shapai dams, which, in the past, have experiencedstrong ground shaking from nearby earthquakes, are discussed.Finally, the need for strong motion instrumentation of large dams is discussed.

Keywords： seismic hazard arch dam concrete face rockfill dam strong motion instrumentation reservoir-triggeredseismicity Wenchuan earthquake

HTML PDF Collect

A fractional-order multifunctionalstrong>nstrong>-step honeycomb RLCcircuit networkstrong> Article

Ling ZHOU, Zhi-zhong TAN, Qing-hua ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8, Pages 1186-1196 doi: 10.1631/FITEE.1601560

Abstract: resistance in the resistor network and equivalent impedance in the LC network, which are in the fractional-order

Keywords： Honeycomb network Equivalent transformation Fractional differential equation Impedance characteristics

HTML PDF Collect

Seismic design of high-rise towers for cable-stayed bridges under strong earthquakes

Yan XU, Shide HU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4, Pages 451-457 doi: 10.1007/s11709-011-0127-5

Abstract: first of a series of studies on the seismic design of high-rise towers for cable-stayed bridges under strongreoptimization of damper parameters or reconsideration of other energy dissipation devices will be needed if strong

Keywords： high-rise tower cable-stayed bridge strong earthquake seismic design

HTML PDF Collect

The scientific faith that earthquake is predictable should be insisted—the successful prediction of threestrong aftershocks of Wenchuan Earthquake

Wang Chengmin

Strategic Study of CAE 2009, Volume 11, Issue 6, Pages 107-110

Abstract:

Is earthquake predictable?This question has been discussed a lot by earthquake researchers and common people after the WenchuanEarthquake.The specialists in Chinese Earthquake Prediction Consultation Committee started the aftershockaction.From May 15 to August 15, the committee formally reported prediction results for 3 times and the three strongaftershocks, i.e.M 6.0 earthquake on May 18 in Jiangyou, M 6.4 earthquake on May 25 in Qingchuan and

Keywords： Wenchuan Earthquake aftershock of Wenchuan Earthquake earthquake short -impending prediction

HTML PDF Collect

The dawn of successful prediction of major earthquakes

Li Ping and Yang Mei’e

Strategic Study of CAE 2009, Volume 11, Issue 6, Pages 19-27

Abstract: recent 20 years, however, some seismologists abroad have taken a disappointed and pessimistic view to earthquakeThey suggest that the efforts should turn toward other fields, such as identification of building’s earthquake-proofinfluence some Chinese researchers of the seismological community who attempted to give up efforts for earthquake

Keywords： Wenchuan Earthquake strong earthquake prediction microseism generating fault

HTML PDF Collect

Earthquakes in the north block of Tibet-Plateau and retrospect of prediction for Wenchuan M8.0 Earthquake

Men Kepei

Strategic Study of CAE 2009, Volume 11, Issue 6, Pages 82-88

Abstract: earthquake prediction with Chinese characteristics, and conceive strong earthquake with magnitude 7Based on this, the 2008 Wenchuan M 8.0 great earthquake was predicted and M≥7 strong earthquakes willMeanwhile, the cause of formation about Wenchuan Earthquake has been discussed primarily.The results show that strong earthquake and strong earthquake chain can be predicted.This method has a unique effect on mid-and-long term prediction for strong earthquake.

Keywords： the north block of Tibet Plateau informational orderly network structure the great Wenchuan Earthquake strong earthquake prediction

HTML PDF Collect

FESEstrong>’s Best Papers of 2017strong>

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1051-x

HTML PDF Collect

Photosynthesis and related metabolic mechanism of promoted rice (strong>Oryza sativastrong> L.) growth by TiOstrong>_{2strong>} nanoparticlesstrong>

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1282-5

Abstract: Abstract • The rice growth was promoted by nano-TiO2 of 0.1–100 mg/L. • Nano-TiO2 enhanced the energy storage in photosynthesis. • Nano-TiO2 reduced energy consumption in carbohydrate metabolism and TCA cycle. Titanium dioxide nanoparticle (nano-TiO2), as an excellent UV absorbent and photo-catalyst, has been widely applied in modern industry, thus inevitably discharged into environment. We proposed that nano-TiO2 in soil can promote crop yield through photosynthetic and metabolic disturbance, therefore, we investigated the effects of nano-TiO2 exposure on related physiologic-biochemical properties of rice (Oryza sativa L.). Results showed that rice biomass was increased >30% at every applied dosage (0.1–100 mg/L) of nano-TiO2. The actual photosynthetic rate (Y(II)) significantly increased by 10.0% and 17.2% in the treatments of 10 and 100 mg/L respectively, indicating an increased energy production from photosynthesis. Besides, non-photochemical quenching (Y(NPQ)) significantly decreased by 19.8%–26.0% of the control in all treatments respectively, representing a decline in heat dissipation. Detailed metabolism fingerprinting further revealed that a fortified transformation of monosaccharides (D-fructose, D-galactose, and D-talose) to disaccharides (D-cellobiose, and D-lactose) was accompanied with a weakened citric acid cycle, confirming the decrease of energy consumption in metabolism. All these results elucidated that nano-TiO2 promoted rice growth through the upregulation of energy storage in photosynthesis and the downregulation of energy consumption in metabolism. This study provides a mechanistic understanding of the stress-response hormesis of rice after exposure to nano-TiO2, and provides worthy information on the potential application and risk of nanomaterials in agricultural production.

Keywords： Nano-TiO₂ Rice Photosynthesis Metabolomics Energy storage

HTML PDF Collect

Sub-layer Movement in the Large-scale Stratum

Xu Shaoxie

Strategic Study of CAE 2006, Volume 8, Issue 6, Pages 14-22

Abstract: Events with strong tremble of sub-layer movement have been analyzed, which were recorded by stationsA certain relationship between events with strong tremble recoded by Golmud Station in November, 2001and earthquake occurred at west of Kunlun Mountain Pass, nearby the station, on 2001 - 11 - 14, hasThat information is very important for earthquake prediction research and geodynamic recognition.

Keywords： sub-layer movement in the large-scale stratum events with strong tremble earthquake prediction

HTML PDF Collect

Adsorption characteristics of ciprofloxacin onto g-MoSstrong>_{2strong>} coated biochar nanocompositesstrong>

Zhenyu Yang, Rong Xing, Wenjun Zhou, Lizhong Zhu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-019-1218-0

Abstract: In addition, the adsorption of CIP onto g-MoS2-BC composites also exhibited strong dependence on the

Keywords： Adsorption Ciprofloxacin g-MoS₂ nanosheets Biochar Soil remediation

HTML PDF Collect

A newly defined dioxygenase system from strong>Mycobacterium vanbaaleniistrong> PYR-1 endowed with an enhanced activity of dihydroxylation of high-molecular-weight polyaromatichydrocarbonsstrong>

Yiquan Wu, Ying Xu, Ningyi Zhou

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1193-5

Abstract: • Mycobacterium vanbaalenii PYR-1 utilizes PAHs at different rates. • Both NidA3B3 and FNidA3B3 catalyze high-molecular-weight PAHs dihydroxylation. • NidA3B3 shows an enhanced activity with an endogenous electron transport chain. • FNidA3B3 has an enhanced activity by 50% approximately compared with NidA3B3. • FNidA3B3/NidA3B3 and NidAB in the same strain come from different ancestors. NidA3B3 is a terminal dioxygenase whose favorable substrates are high-molecular-weight polyaromatic hydrocarbons (PAHs) from Mycobacterium vanbaalenii PYR-1, a powerful PAHs degradation strain. NidA3B3 was reported to incorporate a dioxygen into the benzene ring of PAHs when equipped with an exogenous electron transport chain components PhdCD from Nocardioides sp. strain KP7 by biotransformation, but this enzyme system was not particularly efficient. In this study, strain PYR-1 was confirmed to utilize four different PAHs at different growth rates. When PhtAcAd, an endogenous electron transport chain of a phthalate dioxygenase system, was substituted for PhdCD to couple with NidA3B3, the specific activity to convert phenanthrene by strain BL21(DE3) [pNidA3B3-PhAcAd] was 0.15±0.03 U/mg, but the specific activity of strain BL21(DE3) [pNidA3B3-PhdCD] was only 0.025±0.006 U/mg. In addition, FNidA3, encoded by a newly defined ORF, has a prolonged 19-amino acid sequence at the N-terminal compared with NidA3. FNidA3B3 increased the activity by 50% approximately than NidA3B3 when using PhtAcAd. Components of the electron transport chain PhtAc and PhtAd were purified and characterized. The Km, kcat, kcat/Km values of the PhtAd were 123±26.9 M, 503±49.9 min−1, 4.1 M−1·min−1, respectively. And the Km, kcat, kcat/Km values of the ferredoxin PhtAc were 52.5±9.7 M, 3.8±0.19 min−1 and 0.07 M−1·min−1, respectively. Basing on the phylogenetic analysis, NidA3/FNidA3 were far from its isoenzyme NidA from the same strain. Combining their primary differences of transcriptional pattern in vivo, it indicated that the functionally similar Rieske dioxygenases NidA3B3/FNidA3B3 and NidAB might originate from different ancestors.

Keywords： Biodegradation polyaromatic hydrocarbons biotransformation ring-hydroxylating dioxygenase system

HTML PDF Collect

Fabrication and photocatalytic ability of an Au/TiOstrong>_{2strong>}/reduced graphene oxide nanocompositestrong>

Fenghe Lv, Hua Wang, Zhangliang Li, Qi Zhang, Xuan Liu, Yan Su

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-017-0977-8

Abstract: A new type of Au/TiO /reduced graphene oxide (RGO) nanocomposite was fabricated by the hydrothermal synthesis of TiO on graphene oxide followed by the photodeposition of Au nanoparticles. Transmission electron microscopy images showed that Au nanoparticles were loaded onto the surface of both TiO and RGO. Au/TiO /RGO had a better photocatalytic activity than Au/TiO for the degradation of phenol. Electrochemical measurements indicated that Au/TiO /RGO had an improved charge transfer capability. Meanwhile, chemiluminescent analysis and electron spin resonance spectroscopy revealed that Au/TiO /RGO displayed high production of hydrogen peroxide and hydroxyl radicals in the photocatalytic process. This high photocatalytic performance was achieved via the addition of RGO in Au/TiO /RGO, where RGO served not only as a catalyst support to provide more sites for the deposition of Au nanoparticles but also as a collector to accept electrons from TiO to effectively reduce photogenerated charge recombination.

Keywords： Reduced graphene oxide Au TiO₂ Nanocomposite Photocatalysis

HTML PDF Collect

Effects of cultivation strategies on the cultivation of strong>Chlorellastrong> sp.HQ in photoreactorsstrong>

Xiaoya Liu, Yu Hong, Peirui Liu, Jingjing Zhan, Ran Yan

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1162-z

Abstract: The microalgal growth potential evaluated by the maximal growth rate (Rmax) was in the order of HMTC>

Keywords： Chlorella sp. HQ Cultivation strategy lipids Nitrogen removal Phosphorus removal Reactive oxygen species

HTML PDF Collect

Forward osmosis coupled with lime-soda ash softening for volume minimization of reverse osmosisconcentrate and CaCOstrong>_{3strong>} recovery: A case study on the coalchemical industrystrong>

Jiandong Lu, Shijie You, Xiuheng Wang

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1301-6

Abstract: Abstract • Forward osmosis (FO) coupled with chemical softening for CCI ROC minimization • Effective removal of scale precursor ions by lime-soda ash softening • Enhanced water recovery from 54% to 86% by mitigation of FO membrane scaling • High-purity CaCO3 was recovered from the softening sludge • Membrane cleaning efficiency of 88.5% was obtained by EDTA for softened ROC Reverse osmosis (RO) is frequently used for water reclamation from treated wastewater or desalination plants. The RO concentrate (ROC) produced from the coal chemical industry (CCI) generally contains refractory organic pollutants and extremely high-concentration inorganic salts with a dissolved solids content of more than 20 g/L contributed by inorganic ions, such as Na+, Ca2+, Mg2+, Cl−, and SO42−. To address this issue, in this study, we focused on coupling forward osmosis (FO) with chemical softening (FO-CS) for the volume minimization of CCI ROC and the recovery of valuable resources in the form of CaCO3. In the case of the real raw CCI ROC, softening treatment by lime-soda ash was shown to effectively remove Ca2+/Ba2+ (>98.5%) and Mg2+/Sr2+/Si (>80%), as well as significantly mitigate membrane scaling during FO. The softened ROC and raw ROC corresponded to a maximum water recovery of 86% and 54%, respectively. During cyclic FO tests (4 × 10 h), a 27% decline in the water flux was observed for raw ROC, whereas only 4% was observed for softened ROC. The cleaning efficiency using EDTA was also found to be considerably higher for softened ROC (88.5%) than that for raw ROC (49.0%). In addition, CaCO3 (92.2% purity) was recovered from the softening sludge with an average yield of 5.6 kg/m3 treated ROC. This study provides a proof-of-concept demonstration of the FO-CS coupling process for ROC volume minimization and valuable resources recovery, which makes the treatment of CCI ROC more efficient and more economical.

Keywords： Coal chemical industry Forward osmosis Chemical softening Reverse osmosis concentrate

HTML PDF Collect

Title Author Date Type Operation

Prediction and thoughts of the Wenchuan large earthquake

Geng Qingguo

Journal Article

Features of seismic hazard in large dam projects and strong motion monitoring of large dams

Martin WIELAND,

Journal Article

A fractional-order multifunctionalstrong>nstrong>-step honeycomb RLCcircuit networkstrong>

Ling ZHOU, Zhi-zhong TAN, Qing-hua ZHANG

Journal Article

Seismic design of high-rise towers for cable-stayed bridges under strong earthquakes

Yan XU, Shide HU

Journal Article

The scientific faith that earthquake is predictable should be insisted—the successful prediction of threestrong aftershocks of Wenchuan Earthquake

Wang Chengmin

Journal Article

The dawn of successful prediction of major earthquakes

Li Ping and Yang Mei’e

Journal Article

Earthquakes in the north block of Tibet-Plateau and retrospect of prediction for Wenchuan M8.0 Earthquake

Men Kepei

Journal Article

FESEstrong>’s Best Papers of 2017strong>

Journal Article

Photosynthesis and related metabolic mechanism of promoted rice (strong>Oryza sativastrong> L.) growth by TiOstrong>_{2strong>} nanoparticlesstrong>

Yingdan Zhang, Na Liu, Wei Wang, Jianteng Sun, Lizhong Zhu

Journal Article

Sub-layer Movement in the Large-scale Stratum

Xu Shaoxie

Journal Article

Adsorption characteristics of ciprofloxacin onto g-MoSstrong>_{2strong>} coated biochar nanocompositesstrong>

Zhenyu Yang, Rong Xing, Wenjun Zhou, Lizhong Zhu

Journal Article