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A mini-microbial fuel cell for voltage testing of exoelectrogenic bacteria

Xiaoxin CAO , Xia HUANG , Xiaoyuan ZHANG , Peng LIANG , Mingzhi FAN ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 307-312 doi: 10.1007/s11783-009-0028-1

Abstract: This paper presents a rapid voltage testing system of exoelectrogenic bacteria called Quickscreen, whichcould be determined within about five hours by using Quickscreen, and that its time was relatively rapid

Keywords： microbial fuel cell     exoelectrogenic bacteria     rapid screening    

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Low-dose CT for lung cancer screening: opportunities and challenges

Hongbing Shen

Frontiers of Medicine 2018, Volume 12, Issue 1,   Pages 116-121 doi: 10.1007/s11684-017-0600-1

Abstract: Screening for lung cancer coupled with earlier intervention has long been studied as an approach to mortalityOn the basis of this finding, LDCT has been recommended for lung cancer screening in high-risk populationsIn addition, intractable problems gradually emerged with the progress of LDCT screening.This paper summarizes and discusses the main observations and challenges of LDCT screening for lung cancerComplementary biomarkers and technical improvement are expected in the field of lung cancer screening

Keywords： lung cancer     low-dose computerized tomography     early detection     opportunities     challenges    

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Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 595-595 doi: 10.1007/s11783-012-0452-5

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Systematic screening procedure and innovative energy-saving design for ionic liquid-based extractive

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 34-45 doi: 10.1007/s11705-022-2234-3

Abstract: In this study, a systematic screening strategy and innovative energy-saving design for ionic liquid-based

Keywords： ionic liquid     entrainer screening     feasibility analysis     extractive distillation    

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Screening of indicator pharmaceuticals and personal care products in landfill leachates: a case study

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1716-y

Abstract:

● A systematic framework was developed to identify i-PPCPs for landfill leachate.

Keywords： Landfill leachates     PPCPs     Indicator     Screening criteria     Source-specificity    

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Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 378-390 doi: 10.15302/J-FEM-2015061

Abstract: As one of the primary business centers of China, Guangzhou has been undergoing rapid growth and expansionupgraded its transport infrastructure, especially with the highly beneficial expansion of its Subway Mass RapidPositive steps have also been taken to continue planning the construction of new roads, a Bus Rapid Transitto develop an advanced high-efficiency public transportation modality for Guangzhou, viz. the Group RapidThis paper outlines the PRT/GRT (PRT: Personal Rapid Transit) smart-vehicle modality and also puts forth

Keywords： public transportation system     innovative city transportation     Subway Mass Rapid Transit (MRT)     Bus RapidTransit (BRT)     Group Rapid Transit (GRT)     Personal Rapid Transit (PRT)    

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Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping

Yucheng DING, Changhe LI, Dichen LI, Guoxin YU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 111-119 doi: 10.1007/s11465-009-0020-2

Abstract: Laminated object manufacturing (LOM) is one of the commercialized rapid prototyping (RP) processes, where

Keywords： rapid prototyping     laminated object manufacturing     knife-cutting     tracing error    

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Combination of ARTP mutagenesis and color-mediated high-throughput screening to enhance 1-naphthol yield

Chenggang Qiu, Alei Zhang, Sha Tao, Kang Li, Kequan Chen, Pingkai Ouyang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 793-801 doi: 10.1007/s11705-019-1876-2

Abstract: Then, a microbial clone screening system was used to accelerate the operation.Meanwhile, a novel color-mediated high-throughput screening using 4-aminoantipyrine was performed to

Keywords： Bacillus cereus QCG     naphthalene     1-naphthol     ARTP mutagenesis     high-throughput screening     4-aminoantipyrine    

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Total stress rapid drawdown analysis of the Pilarcitos Dam failure using the finite element method

Daniel R. VANDENBERGE

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 115-123 doi: 10.1007/s11709-014-0249-7

Abstract: Rapid drawdown is a critical design condition for the upstream or riverside slope of earth dams and leveesA new total stress rapid drawdown method based on finite element analysis is used to analyze the rapidanalysis suggests that undrained strengths from ICU tests must be reduced by 30% for use with this rapid

Keywords： rapid drawdown     finite element     total stress     slope stability    

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Experimental study and field application of calcium sulfoaluminate cement for rapid repair of concrete

Yanhua GUAN, Ying GAO, Renjuan SUN, Moon C. WON, Zhi GE

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 338-345 doi: 10.1007/s11709-017-0411-0

Abstract: Based on the laboratory results, the CSA cement was selected as the partial-depth rapid repair materialcement concrete had good short-term and long-term performances and, therefore, was suitable for the rapid

Keywords： Calcium Sulfoaluminate (CSA) cement     Type III cement     coefficient of thermal expansion (CTE)     shrinkage     rapid    

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Design and characteristics of electric supercharger for diesel engine acceleration by additional rapid

YAO Chun-de, ZHOU Hong-xiu

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 409-412 doi: 10.1007/s11465-006-0048-5

Abstract: The ES (electric supercharger) driven by a high-speed brushless motor was developed to solve the problem of smoke caused by the turbocharger s sluggish response during acceleration. Its rotation speed was from 6 000 r/min to 24 000 r/min, and the maximum flux was 0.1 kg/s. The structural design of the electric supercharger is novel, which makes it easier to set the lubricating installation and to assemble. The velocity distribution at the outlet of the electric supercharger is determined by hot-wire anemometry under various rotation speeds in steady state. Furthermore, the trends of the flux and charge rate with various speeds were analyzed. In addition, the transient response was detected from the motor setup to smooth running within 10 s, 15 s, 20 s and 25 s respectively, and the characteristic of the transient flux is under pilot study. Research results indicate that the electric supercharger can respond rapidly with the great flux, and it is independent of the operating conditions of a diesel engine. Therefore, it is a feasible way to reduce smoke emission and improve the acceleration performance.

Keywords： acceleration     velocity distribution     high-speed brushless     turbocharger     electric supercharger    

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Status of hyperhomocysteinemia in China: results from the China Stroke High-risk Population Screening

Frontiers of Medicine 2021, Volume 15, Issue 6,   Pages 903-912 doi: 10.1007/s11684-021-0871-4

Abstract: A nationwide survey was conducted from October 2018 to September 2019 to assess the prevalence of hyperhomocysteinemia (Hhcy) and its influencing factors in China. A standardized questionnaire was used to collect information. Hhcy was defined as the level of serum homocysteine (HCY) ≥15.0 µmol/L. The H-type hypertension (HHYP) was defined as hypertension with an elevated serum HCY (≥15.0 µmol/L). Finally, 110 551 residents ≥40 years of age from 31 provinces in the mainland of China were included. Overall, the median serum HCY level was 10.9 µmol/L (interquartile range 7.9–15.1). A total of 28 633 participants (25.9%) were defined as Hhcy. The Hhcy prevalence ranged from 7.9% in Shanghai to 56.8% in Tianjin. The data showed that serum HCY levels were associated with age, male gender, cigarette smoking, hypertension, diabetes, ethnicity, endurance in exercise (inverse), and fruit and vegetable intake (inverse). In addition, 15 486 participants were defined as HHYP, and the rate was 14.0%. HHYP was an independent predictor of stroke with an adjusted odds ratio of 1.752 (95% CI 1.338–2.105). The geographical distribution pattern of the Hhcy epidemic reflects dynamic differences, and national strategies should be carried out to further improve the care of patients with Hhcy across China.

Keywords： homocysteine     hyperhomocysteinemia     H-type hypertension     Chinese    

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Screening of potential aquatic probiotics from the major microflora of guppies (

Aparna BALAKRISHNA, T. R. KEERTHI

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 163-173 doi: 10.1007/s11705-012-1283-4

Abstract: The fish ( ) was used as the source for probiotics. 46 bacterial isolates were obtained from the skin, gills, guts and intestines of the guppy, (collected from a government model fish farm in Kottayam, India). Of the above isolated strains, four isolates were selected based on their inhibitory spectrum against five indicator strains, 1739, 3906, 2495, 1271 and 1424 (standard cultures collected from Microbial Type Culture Collection (MTCC) Chandigarh, India). Among the resulting isolates, two were gram-positive cocci, namely MBTU-PB2 and MBTU-PB3 and belong to the genus . The other two were gram-negative rods, namely MBTU-PB1 and MBTU-PB4, of the genera and , respectively. The basic probiotic characteristics of these isolates such as the production of bacteriocin like inhibitory substances (BLIS), antibiotic sensitivities and growth profiles were also determined. The above four isolated strains exhibited different antagonisms than the five indicator strains. During incubation, the antibacterial activity gradually increased in the inhibition zone and was influenced by the lag period ( ) and doubling time. The lag periods for most of the four selected strains were shorter than those of the indicator strains and the isolates had different growth rates ( ) than the indicator strains. All four isolates produced BLIS, however, the strains had different BLIS activities against the indicator strains. Treatment of the neutralized cell free supernatants of the selected isolates with proteases eliminated or reduced the BLIS activity, suggesting a proteinaceous nature of the inhibitory compounds. Further, the optimum BLIS activity was observed at neutral pH after 18 h of incubation. The antibiotic sensitivity assay revealed that the isolates were susceptible to routinely used antibiotics, whereas the plasmid profiles showed that the plasmids had no role in the antagonistic properties of the four isolated strains. The results showed that the isolates could be a promising source for biocontrol agents in aquacultures.

Keywords： aquaculture     normal flora     immunomodulatory effect     probiotic     antagonistic principle     bacteriocin like inhibitory substances    

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Application of rapid thermal processing on SiN thin film to solar cells

LI Youjie, LUO Peiqing, ZHOU Zhibin, CUI Rongqiang, HUANG Jianhua, WANG Jingxiao

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 519-523 doi: 10.1007/s11708-008-0095-1

Abstract: Rapid thermal processing (RTP) of SiN thin films from PECVD with low temperature was investigated.
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Low-k integration: Gas screening for cryogenic etching and plasma damage mitigation

Romain Chanson, Remi Dussart, Thomas Tillocher, P. Lefaucheux, Christian Dussarrat, Jean François de Marneffe

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 511-516 doi: 10.1007/s11705-019-1820-5

Abstract: The integration of porous organo-silicate low- materials has met a lot of technical challenges. One of the main issues is plasma-induced damage, occurring for all plasma steps involved during interconnects processing. In the present paper, we focus on porous SiOCH low- damage mitigation using cryogenic temperature so as to enable micro-capillary condensation. The aim is to protect the porous low- from plasma-induced damage and keep the -value of the material unchanged, in order to limit the RC delay of interconnexion levels while shrinking the microchip dimension. The cryogenic temperature is used to condense a gas inside the porous low- material. Then, the etching process is performed at the temperature of condensation in order to keep the condensate trapped inside the material during the etching. In the first part of this work, the condensation properties of several gases are screened, leading to a down selection of five gases. Then, their stability into the porous structure is evaluated at different temperature. Four of them are used for plasma damage mitigation comparison. Damage mitigation is effective and shows negligible damage for one of the gases at –50°C.

Keywords： low-k     nanotechnology     micro-electronics     cryo-etching     plasma processing    

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Title Author Date Type Operation

A mini-microbial fuel cell for voltage testing of exoelectrogenic bacteria

Xiaoxin CAO , Xia HUANG , Xiaoyuan ZHANG , Peng LIANG , Mingzhi FAN ,

Journal Article

Low-dose CT for lung cancer screening: opportunities and challenges

Hongbing Shen

Journal Article

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Journal Article

Systematic screening procedure and innovative energy-saving design for ionic liquid-based extractive

Journal Article

Screening of indicator pharmaceuticals and personal care products in landfill leachates: a case study

Journal Article

Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

Journal Article

Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping

Yucheng DING, Changhe LI, Dichen LI, Guoxin YU

Journal Article

Combination of ARTP mutagenesis and color-mediated high-throughput screening to enhance 1-naphthol yield

Chenggang Qiu, Alei Zhang, Sha Tao, Kang Li, Kequan Chen, Pingkai Ouyang

Journal Article

Total stress rapid drawdown analysis of the Pilarcitos Dam failure using the finite element method

Daniel R. VANDENBERGE

Journal Article

Experimental study and field application of calcium sulfoaluminate cement for rapid repair of concrete

Yanhua GUAN, Ying GAO, Renjuan SUN, Moon C. WON, Zhi GE

Journal Article

Design and characteristics of electric supercharger for diesel engine acceleration by additional rapid

YAO Chun-de, ZHOU Hong-xiu

Journal Article

Status of hyperhomocysteinemia in China: results from the China Stroke High-risk Population Screening

Journal Article

Screening of potential aquatic probiotics from the major microflora of guppies (

Aparna BALAKRISHNA, T. R. KEERTHI

Journal Article

Application of rapid thermal processing on SiN thin film to solar cells

LI Youjie, LUO Peiqing, ZHOU Zhibin, CUI Rongqiang, HUANG Jianhua, WANG Jingxiao

Journal Article

Low-k integration: Gas screening for cryogenic etching and plasma damage mitigation

Romain Chanson, Remi Dussart, Thomas Tillocher, P. Lefaucheux, Christian Dussarrat, Jean François de Marneffe

Journal Article