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The Following-observing Method for Substance Flow Analysis

Lu Zhongwu

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 18-25

Abstract: substance flow.Correspondingly, two methods for substance flow analysis were advanced : one of them is “ following-observing” method, and the other-“standing-observing” method.It is emphasized that the following-observing method is applicable not only for studying steady substanceThe following-observing model of substance flow was explained by using iron flow diagram in the life

Keywords： methods of substance flow analysis     following-observing method for substance flow analysis     basic equationsfor substance flow analysis     degree of unsteadiness of substance flow    

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Vanadium metabolism investigation using substance flow and scenario analysis

Fangfang ZHANG, Huiquan LI, Bo CHEN, Xue GUAN, Yi ZHANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 256-266 doi: 10.1007/s11783-013-0585-1

Abstract: This study conducts accounting and scenario analysis on the life cycle of vanadium metabolism in ChinaBased on the characteristics of vanadium life cycle and substance flow analysis (SFA) framework, we presentA scenario analysis was conducted to analyze the future developmental trend of vanadium metabolism inChina based on the SFA framework and the qualitative analysis of technology advancement and socio-economicThe scenario analysis indicates that the next 20 years is a critical period for the vanadium industry

Keywords： metabolism     vanadium industry     substance flow analysis     scenario analysis    

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Substance flow analysis for an urban drainage system of a representative hypothetical city in China

Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 746-755 doi: 10.1007/s11783-013-0551-y

Abstract: This paper discusses the use of substance flow analysis (SFA) as a tool to support quantified researchBased on the principle of mass balance, a static substance flow model is established to describe and

Keywords： substance flow analysis (SFA)     urban drainage system     representative hypothetical city (RH city)     water    

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Evaluation of global niobium flow modeling and its market forecasting

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 286-293 doi: 10.1007/s11708-022-0823-y

Abstract: Therefore, this paper will discuss different thoughts in material substitution and the substance flowof Nb throughout a static flow using Nb global data to have a better understanding of the process of

Keywords： niobium (Nb)     sustainability     substance flow analysis     recycling     industrial ecology    

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Sinks of steel in China–addition to in-use stock, export and loss

Hua GUO,Tianzhu ZHANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 141-149 doi: 10.1007/s11783-014-0696-3

Abstract: Based on the analysis of existing policies, the researchers propose that the steel demand structure will

Keywords： steel demand     driver     Material Flow Analysis (MFA)     Substance Flow Analysis (SFA)     addition to in-use stock    

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On the MHD squeeze flow between two parallel disks with suction or injection via HAM and HPM

D. D. GANJI,M. ABBASI,J. RAHIMI,M. GHOLAMI,I. RAHIMIPETROUDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 270-280 doi: 10.1007/s11465-014-0303-0

Abstract:

An analysis has been performed to study the problem of magneto-hydrodynamic (MHD) squeeze flow ofThe analytical methods called Homotopy Analysis Method (HAM) and Homotopy Perturbation Method (HPM) havecapabilities and wide-range applications of the proposed methods in comparison with a type of numerical analysis

Keywords： Homotopy Analysis Method     Homotopy Perturbation Method     incompressible flow     magneto-hydrodynamic flow     parallel    

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Effects of a structurally related substance on the crystallization of paracetamol

Ali SALEEMI, I.I. ONYEMELUKWE, Zoltan NAGY

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 79-87 doi: 10.1007/s11705-013-1308-7

Abstract: Paracetamol (PCM) was crystallized from an isopropanol (IPA) solution containing various small amounts of metacetamol as an additive. The effect on the nucleation kinetics was studied by measuring the induction time to nucleation and the metastable zone width using focused beam reflectance measurements (FBRM) and attenuated total reflectance (ATR-UV/Vis) spectroscopy. Both the induction time and the metastable zone width were expressed as functions of the additive concentration. Small amounts of metacetamol (1–4 mol-%) were found to cause significant inhibition to the nucleation by extending both the induction time and the metastable zone width. A progressive change in the morphology of the paracetamol crystals from tabular to columnar habit was observed with increasing metacetamol concentration. The solvent also had a significant effect on the size of the paracetamol crystals as smaller crystals were obtained in IPA than in aqueous solution. The dissolution rate of paracetamol was improved by the incorporation of metacetamol with 4 mol-% having the most effect. A supersaturation control (SSC) approach was implemented for the PCM-IPA system with and without metacetamol in an attempt to control and obtain larger metacetamol-doped paracetamol crystals.

Keywords： acetaminophen     metacetamol     crystallization     metastable zone width     induction time     supersaturation control    

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3D finite element method (FEM) simulation of groundwater flow during backward erosion piping

Kristine VANDENBOER,Vera van BEEK,Adam BEZUIJEN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 160-166 doi: 10.1007/s11709-014-0257-7

Abstract: In this work, a 3D numerical approach of the groundwater flow leading to the erosion mechanism of backward

Keywords： backward erosion piping     groundwater flow     3D finite element method (FEM)    

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Extended model predictive control scheme for smooth path following of autonomous vehicles

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 4-4 doi: 10.1007/s11465-021-0660-4

Abstract: This paper presents an extended model predictive control (MPC) scheme for implementing optimal path followingThen, an extended MPC method solved by differential evolution optimization algorithm is proposed to realizeoptimal smooth path following based on driving path features.Results indicate that the proposed method can obtain the smooth transition to follow the optimal drivableand satisfy the lateral dynamic stability and environmental constraints, which can improve the path following

Keywords： autonomous vehicles     vehicle dynamic modeling     model predictive control     path following     optimization    

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Numerical study and control method of interaction of nucleation and boundary layer separation in condensingflow

Liansuo AN , Zhi WANG , Zhonghe HAN ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 254-261 doi: 10.1007/s11708-009-0047-4

Abstract: of condensation was calculated by the quadrature method of moments that shows good accuracy with veryThe results show that the degree of flow separation in wet steam flow is greater than that in superheatedA method for controlling homogeneous nucleation and for reducing degree of flow separation in high-speedtransonic wet steam flow was presented.The numerical study provides a practical design method for turbine blade to reduce wetness losses.

Keywords： wet steam     two-phase flow     spontaneous condensation     numerical simulation     flow separation     profile loss    

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Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical

ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 13-19 doi: 10.1007/s11465-007-0002-1

Abstract: Meanwhile, the theoretical equation of the pump flow rate is established.Finally, a real valveless piezoelectric pump with unsymmetrical ridges is manufactured, and the flowIt is proved that the theory is rational and correct by comparing the experimental flow rate and thetheoretical flow rate.In addition, for calculating the theoretical flow rate, the positive and converse flow resistance coefficients

Keywords： unsymmetrical     theoretical flow     theoretical equation     pump flow     converse flow    

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Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor

LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 448-452 doi: 10.1007/s11708-008-0088-0

Abstract: The tip clearance unsteady flow development from the inlet to the outlet of an axial-flow rotor was revealedThe experiment provides test basis for thoroughly understanding the tip clearance unsteady flow and buildinginteraction models of tip clearance flow and main flow.

Keywords： development     endwall     unsteady pressure     pressure measurement     experiment    

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Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang WANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 267-275 doi: 10.1007/s11709-010-0035-0

Abstract: Discrete element method (DEM) was developed to simulate the corn-shaped particles flow in the hopper.And the velocity distribution is more uniformity and is closer to the mass flow with the friction coefficient

Keywords： discrete         element          method        (DEM)             non-spherical    

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Sustainable design of sanitation system based on material and value flow analysis for urban slum in Indonesia

Ken USHIJIMA, Mitsuteru IRIE, Neni SINTAWARDANI, Jovita TRIASTUTI, Umi HAMIDAH, Tadaharu ISHIKAWA, Naoyuki FUNAMIZU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 120-126 doi: 10.1007/s11783-012-0460-5

Abstract: Material flow analysis (MFA) and value flow analysis (VFA) were applied to the sanitation system in anBecause such disadvantages do not go back to disposers, but passed to downstream, the current value flowBased on current material and value flow structures, a resource recycling sanitation system scenario

Keywords： material flow     value flow     resource recycling system     sustainable design     initial cost     urban slum    

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A novel method to investigate voltage stability of IEEE-14 bus wind integrated system using PSAT

Satish KUMAR,Ashwani KUMAR,N. K. SHARMA

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 410-418 doi: 10.1007/s11708-016-0440-8

Abstract: This paper presents the line indices method to identify these weak buses, so that some corrective actionthe test system is integrated and the performance of the system is verified by calculating the power flow(PF) using the power system analysis tool box (PSAT) and line indices of the integrated test system.The PF and load flow results are used to calculate line indices for the IEEE-14 bus test system which

Keywords： voltage stability     line indices     power system analysis tool box (PSAT)     wind system     line loading     power flow    

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Title Author Date Type Operation

The Following-observing Method for Substance Flow Analysis

Lu Zhongwu

Journal Article

Vanadium metabolism investigation using substance flow and scenario analysis

Fangfang ZHANG, Huiquan LI, Bo CHEN, Xue GUAN, Yi ZHANG

Journal Article

Substance flow analysis for an urban drainage system of a representative hypothetical city in China

Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN

Journal Article

Evaluation of global niobium flow modeling and its market forecasting

Journal Article

Sinks of steel in China–addition to in-use stock, export and loss

Hua GUO,Tianzhu ZHANG

Journal Article

On the MHD squeeze flow between two parallel disks with suction or injection via HAM and HPM

D. D. GANJI,M. ABBASI,J. RAHIMI,M. GHOLAMI,I. RAHIMIPETROUDI

Journal Article

Effects of a structurally related substance on the crystallization of paracetamol

Ali SALEEMI, I.I. ONYEMELUKWE, Zoltan NAGY

Journal Article

3D finite element method (FEM) simulation of groundwater flow during backward erosion piping

Kristine VANDENBOER,Vera van BEEK,Adam BEZUIJEN

Journal Article

Extended model predictive control scheme for smooth path following of autonomous vehicles

Journal Article

Numerical study and control method of interaction of nucleation and boundary layer separation in condensingflow

Liansuo AN , Zhi WANG , Zhonghe HAN ,

Journal Article

Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical

ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong

Journal Article

Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor

LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang

Journal Article

Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang WANG,

Journal Article

Sustainable design of sanitation system based on material and value flow analysis for urban slum in Indonesia

Ken USHIJIMA, Mitsuteru IRIE, Neni SINTAWARDANI, Jovita TRIASTUTI, Umi HAMIDAH, Tadaharu ISHIKAWA, Naoyuki FUNAMIZU

Journal Article

A novel method to investigate voltage stability of IEEE-14 bus wind integrated system using PSAT

Satish KUMAR,Ashwani KUMAR,N. K. SHARMA

Journal Article