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Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production

GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 454-461 doi: 10.1007/s11465-008-0083-5

Abstract: The existing technology of flow manufacturing, which is mainly appropriate for high volume and repetitiveproduction, is proven difficult to be applied in high-mix/low-volume environments.To adapt lean production into the latter, a new type of flow manufacturing is proposed based on flowThe main idea is the dynamic formation of adaptable virtual production lines (called flow paths) correspondingFor the implementation, a mathematical programming method is suggested for the dynamic planning of flow

Keywords： appropriate     management technology     scheduling     technology     different    

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Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 643-651 doi: 10.1007/s11709-021-0709-9

Abstract: This study presents the results of the 3D microstructure, thermal conductivity, and heat flow in cement-basedBased on the analysis, the pore volume of 11000 µm3 was determined across the three densitiesmodel showed that heat flows through the cement paste solids and with an increase in porosity this flow

Keywords： 3D pore volume distribution     X-ray tomography     3D shape factor     heat flow    

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Assessment of liver volume variation to evaluate liver function

Cong Tong, Xinsen Xu, Chang Liu, Tianzheng Zhang, Kai Qu

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 421-427 doi: 10.1007/s11684-012-0223-5

Abstract: volumetry in cirrhosis and acute liver failure (ALF) patients, we explored the correlation between hepatic volumeto get a regression formula for standard liver volume (SLV) and BSA.It turned out that the mean liver volume of the control group was 1 058±337 cm3.The hepatic volume of cirrhosis patients in Child A, B level was not reduced, but in Child C level itwas significantly reduced with the lowest liver volume index (CTLV/SLV).

Keywords： liver volume variation     cirrhosis     acute liver failure (ALF)    

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Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1400-1414 doi: 10.1007/s11709-021-0779-8

Abstract: Aggregates are the biggest contributor to concrete volume and are a crucial parameter in dictating its, a detailed experimental investigation was carried out to evaluate the effect of sand-to-aggregate volume

Keywords： aggregates     non-destructive testing     sand-to-aggregate volume ratio (s/a)     maximum aggregate    

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Large-scale accumulation characteristic and distribution law of low porosity and permeability reservoir in China

Zhao Wenzhi,Wang Hongjun,Bian Congsheng,Wang Zecheng,Liu Guangdi

Strategic Study of CAE 2012, Volume 14, Issue 6,   Pages 31-39

Abstract: burial period and scale“exhausting gas” in uplift stage are the important gas source;the volumeflow and diffusion flow filling are the main migration and accumulation modes.

Keywords： low porosity and permeability reservoir     largescale gas accumulation     volume flow     diffusion flow     “pancake    

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Integration of molecular dynamic simulation and free volume theory for modeling membrane VOC/gas separation

Bo Chen, Yan Dai, Xuehua Ruan, Yuan Xi, Gaohong He

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 296-305 doi: 10.1007/s11705-018-1701-3

Abstract: membrane separation process for volatile organic compounds by combining the MD simulation with the free volumeand pure gas permeation data are employed to correlate pressure-irrelevant parameters for the free volumeproduct purity are reduced from 10% to less than 1%, and the deviations of the permeate and residue flow

Keywords： membrane vapor separation     membrane process modeling     process engineering     free volume theory     volatile organic    

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V-shaped substrate for surface and volume enhanced Raman spectroscopic analysis of microplastics

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1578-8

Abstract:

● V-shaped substrate was obtained for SERS analysis of microplastics (diameter ≈ 1 μm).

Keywords： SERS     V-shaped     AAO     Microplastic     Atmospheric aerosol    

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Modeling limit force capacities of high force to volume lead extrusion dampers

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 609-622 doi: 10.1007/s11709-021-0724-x

Abstract: Small volumetric sizes and high force capacities define high-force-to-volume (HF2V) devices, which can

Keywords： extrusion     lead dampers     upper and lower bound     analytical modelling     limit force    

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Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 973-987 doi: 10.1007/s11708-021-0762-z

Abstract: A fan-stirred combustion chamber is deve-loped for spherically expanding flames, with P and T up to 10 bar and 473 K, respectively. Turbulence characteristics are estimated using particle image velocimetry (PIV) at different initial pressures (P = 0.5–5 bar), fan frequencies (ω = 0–2000 r/min), and impeller diameters (D = 100 and 114 mm). The flame propagation of methanol/air is investigated at different turbulence intensities (u′=0–1.77 m/s) and equivalence ratios (φ = 0.7–1.5). The results show that u′ is independent of P and proportional to ω, which can be up to 3.5 m/s at 2000 r/min. LT is independent of P and performs a power regression with ω approximately. The turbulent field is homogeneous and isotropic in the central region of the chamber while the inertial subrange of spatial energy spectrum is more collapsed to –5/3 law at a high ReT. Compared to laminar expanding flames, the morpho-logy of turbulent expanding flames is wrinkled and the wrinkles will be finer with the growth of turbulence intensity, consistent with the decline of the Taylor scale and the Kolmogorov scale. The determined SL in the present study is in good agreement with that of previous literature. The SL and ST of methanol/air have a non-monotonic trend with φ while peak ST is shifted to the richer side compared to SL. This indicates that the newly built turbulent combustion chamber is reliable for further experimental study.

Keywords： fan-stirred combustion chamber     turbulence characteristics     particle image velocimetry (PIV)     methanol     turbulent expanding flames    

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Radiative properties of materials with surface scattering or volume scattering: A review

Qunzhi ZHU, Hyunjin LEE, Zhuomin M. HANG

Frontiers in Energy 2009, Volume 3, Issue 1,   Pages 60-79 doi: 10.1007/s11708-009-0011-3

Abstract: particulate media and porous materials are important in thermal engineerit transfer between surfaces and volumeRigorous solutions and approximation methods for surface scattering and volume scattering are described

Keywords： aerogel     fiber     particle scattering     radiative properties     soot     surface roughness    

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selected semi-volatile organic compounds in water using automated online solid-phase extraction with large-volume

Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 417-425 doi: 10.1007/s11783-011-0310-x

Abstract: automated online solid-phase extraction technique coupled with programmed-temperature vaporization large-volumeFor a sample volume of 10 mL, the linear calibrations ranged from 0.01 or 0.05 to 2.5μg·L , and the method

Keywords： automated solid-phase extraction     programmed-temperature vaporization     large-volume injection     gas chromatography    

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China Engineering Science 2002 Volume 4 Contents

Strategic Study of CAE 2002, Volume 4, Issue 12,   Pages 91-94

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China Engineering Science 2001 Volume 3 Contents

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 96-99

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Numerical study of internal flow field and flow passage improvement of an inlet particle separator

Florian PAOLI, Tong WANG

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 386-397 doi: 10.1007/s11708-011-0156-8

Abstract: By performing gas flow field numerical simulations for several inlet Reynolds numbers (from 2 × 10to 9 × 10 ) and byflow ratios (from 10% to 20%), the present study has proposed to improve the flowNo particle has been included in the gas flow for a -epsilon turbulence model.Then the flow passage improvement method has focused on the separation area.in this study has succeeded in designing a shape which enhances the flow behavior.

Keywords： streamlines     pressure losses     flow passage improvement     inlet particle separator (IPS)    

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Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 429-445 doi: 10.1007/s11709-013-0226-6

Abstract: Low and high volume fly ash concrete mixtures were studied systematically with the addition of acceleratingAlso, it can be noted that the high volume fly ash (50%) addition in concrete showed a reduction in strength

Keywords： fly ash     pozzolanic index     steam curing     superplasticizer     accelerator     steel fibres     elastic modulus    

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Title Author Date Type Operation

Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production

GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen

Journal Article

Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using

Journal Article

Assessment of liver volume variation to evaluate liver function

Cong Tong, Xinsen Xu, Chang Liu, Tianzheng Zhang, Kai Qu

Journal Article

Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio

Journal Article

Large-scale accumulation characteristic and distribution law of low porosity and permeability reservoir in China

Zhao Wenzhi,Wang Hongjun,Bian Congsheng,Wang Zecheng,Liu Guangdi

Journal Article

Integration of molecular dynamic simulation and free volume theory for modeling membrane VOC/gas separation

Bo Chen, Yan Dai, Xuehua Ruan, Yuan Xi, Gaohong He

Journal Article

V-shaped substrate for surface and volume enhanced Raman spectroscopic analysis of microplastics

Journal Article

Modeling limit force capacities of high force to volume lead extrusion dampers

Journal Article

Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV

Journal Article

Radiative properties of materials with surface scattering or volume scattering: A review

Qunzhi ZHU, Hyunjin LEE, Zhuomin M. HANG

Journal Article

selected semi-volatile organic compounds in water using automated online solid-phase extraction with large-volume

Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE

Journal Article

China Engineering Science 2002 Volume 4 Contents

Journal Article

China Engineering Science 2001 Volume 3 Contents

Journal Article

Numerical study of internal flow field and flow passage improvement of an inlet particle separator

Florian PAOLI, Tong WANG

Journal Article

Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Journal Article