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Geochmeical features and geological significance of Granitoid Rocks in Guaizihu， Ejinaqi， Inner Mongolia

Yan Haiqing,Chen Yuan and Fan Mochun、Ren Jianmei、Jiang Shan、Lv Jinliang、Zhao Shixiang、Fan Chaofeng

Strategic Study of CAE 2015, Volume 17, Issue 2,   Pages 97-105

Abstract: This paper， using petrogeochemistry method and combining the study of macropetrology in the field， revealedGuaizihu granite belongs to low Sr and low Yb type.- crustal thickening.A series of evidence showed that the disappearing of ancient Asia ocean in the east of Central Asianorogenic belt， which is represented by Engel Usu ophiolite belt， occured at the end of the early Permian

Keywords： Ejinaqi； Himalayan type granite； petrogeochemistry； crustal thickening； Central Asian Orogenic Belt    

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Special issue on the Asian Congress on Biotechnology 2011

Bang-Ce YE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 125-125 doi: 10.1007/s11705-012-1291-4

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A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 272-279 doi: 10.1007/s11783-010-0234-x

Abstract: A hybrid membrane process for simultaneous sludge thickening and digestion (MSTD) was studied.The thickening and digestion effects in the MSTD were further analyzed based on a mass balance analysis

Keywords： membrane filtration     sludge digestion     sludge thickening     waste activated sludge    

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Microdamage study of granite under thermomechanical coupling based on the particle flow code

Frontiers of Structural and Civil Engineering   Pages 1413-1427 doi: 10.1007/s11709-023-0953-2

Abstract: experimental data are obtained, particularly in terms of the compression, tension, and elastic responses of granite

Keywords： thermomechanical coupling effect     granite     improved linear parallel bond model     thermal property     particle    

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Simple model of sludge thickening process in secondary settlers

Yuankai ZHANG,Hongchen WANG,Lu QI,Guohua LIU,Zhijiang HE,Songzhu JIANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 319-326 doi: 10.1007/s11783-014-0758-6

Abstract: Sludge thickening occurs in the lower portions of secondary clarifiers during their operation.In this study, by detecting the hindered zone from the complete thickening process of activated sludgesludge thickening in the hindered zone was developed.zone showed limited thickening.To explore different sludge settling and thickening mechanisms, the curves of sludge thickening and sludge

Keywords： wastewater treatment plants     secondary settler     sludge thickening     sludge settling     hindered zone    

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Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 753-760 doi: 10.1007/s11783-011-0368-5

Abstract: Gravitational thickening is the prevailing method to reduce sludge volume but the process is slow andThis paper investigated the potential benefits of sonication on enhancing the sludge gravitational thickeningWeak sonication (<680 kJ·kg DS) improved the sludge gravitational thickening while high ultrasonic energyConsidering both the sludge thickening efficiency and energy consumption, the optimum conditions wereWeak sonication could substitute expensive polyelectrolyte coagulant for sludge thickening.

Keywords： activated sludge     sonication     settlability     dry weight     extracellular polymeric substances     polyelectrolyte    

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Analysis on the Characteristics of Metal Belt Drive With Magnet

Luo Shanming,Guo Yingfu,Chen Anhua,Yu Yidao,Chen Lifeng

Strategic Study of CAE 2005, Volume 7, Issue 7,   Pages 76-80

Abstract:

The characteristics of metal belt drive with magnet (MBDM) are introduced in this paper.The results show that the friction force between pulley and metal belt can be increased by a great extent

Keywords： belt drive     metal belt     magnetic attraction     electromechanical coupling    

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Study on the Crustal Stability in Three-Gorges Area of the Yangtze River

Li Ping,Li Yuanjun

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 26-34

Abstract: p>The Three-Gorges Dam on the Yangtze River is situated on the intact rock mass composed of diorite-granite

Keywords： Three-Gorges Dam on the Yangtze River     Huangling block     strong seismogenic zone     crustal stability    

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A full-scale integrated-bioreactor with two zones treating odours from sludge thickening tank and dewatering

Jianwei Liu, Kaixiong Yang, Lin Li, Jingying Zhang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0932-8

Abstract: A full-scale integrated-bioreactor consisting of a suspended zone and an immobilized zone was employed to treat the ordours emitted from a wastewater treatment plant. The inlet concentrations of H S and NH were 1.6–38.6 mg·m and 0.1–6.7 mg·m , respectively, while the steady-state outlet concentrations were reduced to 0–2.8 mg·m for H S and 0–0.5 mg·m for NH . Both H S and NH were eliminated effectively by the integrated bioreactor. The removal efficiencies of H S and NH differed between the two zones. Four species of microorganisms related to the degradation of H S and NH were isolated. The characteristics and distributions of the microbes in the bioreactor depended on the inlet concentration of substrates and the micro-environmental conditions in the individual zones. Product analysis indicated that most of the H S was oxidized into sulfate in the immobilized zone but was dissolved into the liquid phase in the suspended zone. A large amount of NH was converted into nitrate and nitrite by nitration in the suspended zone, whereas only a small amount of NH was transferred to the aqueous phase mainly by absorption or chemical neutralization in the immobilized zone. Different microbial populations dominated the individual zones, and the major biodegradation products varied accordingly.

Keywords： Biological deodorization     Microbial characteristics     Ammonia     Hydrogen sulfide     Wastewater treatment plant    

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Dynamic failure analysis on granite under uniaxial impact compressive load

ZHAI Yue, MA Guowei, HU Changming, ZHAO Junhai

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 253-260 doi: 10.1007/s11709-008-0042-6

Abstract: loading tests were produced in the modified split Hopkinson pressure bar (SHPB) with pulse shaper on graniteIt was shown that the failure of the granite cylinder was typical tensile splitting failure mode by suddenBesides, it was concluded that not only the strength of granite increased, but also the fragment sizecrack length, crack angle, crack space and friction coefficient on the macro-mechanical properties of graniteAccordingly, the strain-dependency of the compression strength and the fragmentation degree of granite

Keywords： numerical calculation     coefficient     cylinder     splitting parallel     strain-dependency    

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clinical outcome in chronic heart-failure patients with reduced ejection fraction: evidence from an Asian

Frontiers of Medicine 2022, Volume 16, Issue 2,   Pages 295-305 doi: 10.1007/s11684-021-0857-2

Abstract: The association among plasma trimethylamine-N-oxide (TMAO), FMO3 polymorphisms, and chronic heart failure (CHF) remains to be elucidated. TMAO is a microbiota-dependent metabolite from dietary choline and carnitine. A prospective study was performed including 955 consecutively diagnosed CHF patients with reduced ejection fraction, with the longest follow-up of 7 years. The concentrations of plasma TMAO and its precursors, namely, choline and carnitine, were determined by liquid chromatography-mass spectrometry, and the FMO3 E158K polymorphisms (rs2266782) were genotyped. The top tertile of plasma TMAO was associated with a significant increment in hazard ratio (HR) for the composite outcome of cardiovascular death or heart transplantation (HR=1.47, 95% CI=1.13–1.91, P=0.004) compared with the lowest tertile. After adjustments of the potential confounders, higher TMAO could still be used to predict the risk of the primary endpoint (adjusted HR=1.33, 95% CI=1.01–1.74, P=0.039). This result was also obtained after further adjustment for carnitine (adjusted HR=1.33, 95% CI=1.01–1.74, P=0.039). The FMO3 rs2266782 polymorphism was associated with the plasma TMAO concentrations in our cohort, and lower TMAO levels were found in the AA-genotype. Thus, higher plasma TMAO levels indicated increased risk of the composite outcome of cardiovascular death or heart transplantation independent of potential confounders, and the FMO3 AA-genotype in rs2266782 was related to lower plasma TMAO levels.

Keywords： chronic heart failure     trimethylamine-N-oxide     flavin monooxygenase 3     single nucleotide polymorphism    

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Multiscale RBF-based central high resolution schemes for simulation of generalized thermoelasticity problems

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 429-455 doi: 10.1007/s11709-018-0483-5

Abstract: In this study, average-interpolating radial basis functions (RBFs) are successfully integrated with centralhigh-resolution schemes to achieve a higher-order central method.In the central high resolution formulation, RBFs lead to a reconstruction with the optimum recovery withAs RBFs work satisfactory on non-uniform cells/grids, the proposed central scheme can handle adaptedsimulations, the multiresolution–based grid adaptation approach is then integrated with the RBF-based central

Keywords： central high resolution schemes     RBFs     higher order accuracy     generalized thermoelasticity     multiresolution-based    

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Degradation of refractory organics in concentrated leachate by the Fenton process: Central composite

Senem Yazici Guvenc, Gamze Varank

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1294-1

Abstract: Abstract • 90% total COD, 95.3% inert COD and 97.2% UV254 were removed. • High R2 values (over 95%) for all responses were obtained with CCD. • Operational cost was calculated to be 0.238 €/g CODremoved for total COD removal. • Fenton oxidation was highly-efficient method for inert COD removal. • BOD5/COD ratio of leachate concentrate raised from 0.04 to 0.4. The primary aim of this study is inert COD removal from leachate nanofiltration concentrate because of its high concentration of resistant organic pollutants. Within this framework, this study focuses on the treatability of leachate nanofiltration concentrate through Fenton oxidation and optimization of process parameters to reach the maximum pollutant removal by using response surface methodology (RSM). Initial pH, Fe2+ concentration, H2O2/Fe2+ molar ratio and oxidation time are selected as the independent variables, whereas total COD, color, inert COD and UV254 removal are selected as the responses. According to the ANOVA results, the R2 values of all responses are found to be over 95%. Under the optimum conditions determined by the model (pH: 3.99, Fe2+: 150 mmol/L, H2O2/Fe2+: 3.27 and oxidation time: 84.8 min), the maximum COD removal efficiency is determined as 91.4% by the model. The color, inert COD and UV254 removal efficiencies are determined to be 99.9%, 97.2% and 99.5%, respectively, by the model, whereas the total COD, color, inert COD and UV254 removal efficiencies are found respectively to be 90%, 96.5%, 95.3% and 97.2%, experimentally under the optimum operating conditions. The Fenton process improves the biodegradability of the leachate NF concentrate, increasing the BOD5/COD ratio from the value of 0.04 to the value of 0.4. The operational cost of the process is calculated to be 0.238 €/g CODremoved. The results indicate that the Fenton oxidation process is an efficient and economical technology in improvement of the biological degradability of leachate nanofiltration concentrate and in removal of resistant organic pollutants.

Keywords： Concentrated leachate     Fenton oxidation     Central composite design     Biodegradability     Inert COD    

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Development of a multi-component drug from turmeric using central composite design

Xiaohang ZHANG,Shengnan HAN,Yan LI,Jianlan JIANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 362-368 doi: 10.1007/s11705-014-1439-5

Abstract: methodology to develop multi-component drugs based on traditional Chinese medicines has been developed using centralResponse surface methodology based on a central composite design was applied to determine the quantitativeThese results demonstrate that response surface methodology based on a central composite design is suitable

Keywords： multi-component drug development     central composite design     turmeric     curcuminoids    

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Prevalence of vitamin D deficiency in girls with idiopathic central precocious puberty

Yue Zhao, Wenjun Long, Caiqi Du, Huanhuan Yang, Shimin Wu, Qin Ning, Xiaoping Luo

Frontiers of Medicine 2018, Volume 12, Issue 2,   Pages 174-181 doi: 10.1007/s11684-017-0544-5

Abstract:

The relationship between vitamin D deficiency and idiopathic central precocious puberty (ICPP) has

Keywords： idiopathic central precocious puberty     threshold effects     vitamin D status    

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Title Author Date Type Operation

Geochmeical features and geological significance of Granitoid Rocks in Guaizihu， Ejinaqi， Inner Mongolia

Yan Haiqing,Chen Yuan and Fan Mochun、Ren Jianmei、Jiang Shan、Lv Jinliang、Zhao Shixiang、Fan Chaofeng

Journal Article

Special issue on the Asian Congress on Biotechnology 2011

Bang-Ce YE

Journal Article

A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Journal Article

Microdamage study of granite under thermomechanical coupling based on the particle flow code

Journal Article

Simple model of sludge thickening process in secondary settlers

Yuankai ZHANG,Hongchen WANG,Lu QI,Guohua LIU,Zhijiang HE,Songzhu JIANG

Journal Article

Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Journal Article

Analysis on the Characteristics of Metal Belt Drive With Magnet

Luo Shanming,Guo Yingfu,Chen Anhua,Yu Yidao,Chen Lifeng

Journal Article

Study on the Crustal Stability in Three-Gorges Area of the Yangtze River

Li Ping,Li Yuanjun

Journal Article

A full-scale integrated-bioreactor with two zones treating odours from sludge thickening tank and dewatering

Jianwei Liu, Kaixiong Yang, Lin Li, Jingying Zhang

Journal Article

Dynamic failure analysis on granite under uniaxial impact compressive load

ZHAI Yue, MA Guowei, HU Changming, ZHAO Junhai

Journal Article

clinical outcome in chronic heart-failure patients with reduced ejection fraction: evidence from an Asian

Journal Article

Multiscale RBF-based central high resolution schemes for simulation of generalized thermoelasticity problems

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI

Journal Article

Degradation of refractory organics in concentrated leachate by the Fenton process: Central composite

Senem Yazici Guvenc, Gamze Varank

Journal Article

Development of a multi-component drug from turmeric using central composite design

Xiaohang ZHANG,Shengnan HAN,Yan LI,Jianlan JIANG

Journal Article

Prevalence of vitamin D deficiency in girls with idiopathic central precocious puberty

Yue Zhao, Wenjun Long, Caiqi Du, Huanhuan Yang, Shimin Wu, Qin Ning, Xiaoping Luo

Journal Article