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Theoretical Developments and Experimental Examinations in Special Relativity

Huang Zhixun

Strategic Study of CAE 2003, Volume 5, Issue 5,   Pages 7-18

Abstract: This would call into question whether the light speed is truly constant or not .

Keywords： special relativity     light speed constancy postulate     faster than light (superluminal)     fine structure constant    

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Effect of fine solid particles on absorption rate of gaseous CO

LU Sumin, MA Youguang, SHEN Shuhua, ZHU Chunying

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 368-372 doi: 10.1007/s11705-008-0067-3

Abstract: enhancement increased quickly with the increase of solid concentration in slurry at first, and then reached a constant

Keywords： constant     influence     soybean     solvent     concentration    

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and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1547-2

Abstract:

• DPAA sorption followed pseudo-secondary and intra-particle diffusion models.

Keywords： Diphenylarsinic acid (DPAA)     Sorption     Magnetite     Siderite     Sequential extraction     EXAFS    

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Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 991-1009 doi: 10.1007/s11705-022-2259-7

Abstract: insulation level of ultrahigh voltage transformers and reduce their weight and size, reducing the dielectric constantThe dielectric constant of a cellulose insulating paper can be effectively reduced by chemical or physicalforeign and domestic research status of the use of modification technology to reduce the dielectric constantThis paper can provide a reference for further research on low dielectric constant cellulose insulating

Keywords： low dielectric constant     chemical and physical modification     cellulose insulating paper     transformer    

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Collaborative control of fine particles and ozone required in China for health benefit

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1692-2

Abstract:

● Increased DAAO offsets 3/4 of the decrease of DAAP in 2013–2020.

Keywords： Excess deaths     Long-term exposure     Fine particle     Ozone    

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Properties of cement grout modified with ultra-fine slag

Sowmini GOPINATHAN, K B ANAND

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 58-66 doi: 10.1007/s11709-017-0383-0

Abstract: The grout mixes of the present study contain cement, ultra-fine slag (UFS), super plasticizer and waterUltra-fine slag can be used as a supplementary cementitious material in cementitious grouts in order

Keywords： cement grout     ultra-fine slag     flowability     bleeding     viscosity    

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Confinement properties of circular concrete columns wrapped with prefabricated textile-reinforced fine

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0955-0

Abstract: both reinforced concrete (RC) and plain concrete (PC) columns) and a prefabricated textile-reinforced fine

Keywords： textile-reinforced fine concrete     prefabricated shell     confined concrete column     confinement properties    

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Fine Chemicals in the New Century

Yang Jinzong

Strategic Study of CAE 2002, Volume 4, Issue 10,   Pages 21-25

Abstract:

Fine chemicals industry is one of the standards to evaluate the level of chemical industry.Several problems which should be taken into consideration in developing fine chemicals industry, including

Keywords： fine chemicals     environmental protection     core technology     energy saving     consumption decrease     specialty    

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The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

Mgboawaji Claude UJILE; Samuel Jonah ABBEY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7,   Pages 803-816 doi: 10.1007/s11709-022-0835-z

Abstract: Construction and demolition waste (CDW) are the largest waste products in the world today and competes as a viable recycled additive material in place of natural aggregates. Due to the increase in compressive strength of different mix proportions of CDW, it is also considered for reuse in concrete and subbase construction. This study shows the effect of CDW in expansive soil stabilization. The chemical and mechanical properties of these materials have shown that they are capable of developing compressive strength properties for replacement of cement with significant reduction in carbon emission. The inherent compositional properties of recycled CDW compared in this review suggests that CDW have good filler properties in highly expansive soils. Mixtures of crushed brick and recycled aggregates characterised based on chemical properties of different replacement ratios suggests that CDW of good-quality aggregates reduces swell potential of expansive soils and increased mechanical strength in pavement construction.

Keywords： mixed fine portions     construction and demolition waste     expansive soil     soil stabilization    

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Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 279-289 doi: 10.1007/s11708-014-0312-z

Abstract: Solar and wind are the most promising renewable energy resources. But their unpredictable and varying nature prevents them from being used as the sole resource for power generation. This paper presents a model of wind and solar thermal hybrid power plant with a spring storage system which is expected to play an efficient role in combating with the drawbacks related to renewable power generation. In the proposed scheme, wind energy is harnessed by a hybrid vertical axis wind turbine, solar energy is utilized by a Stirling engine, and the surplus energy is stored in a winding spring. The paper discusses the working methodologies and analyses the performance of such 2.6 kW hybrid power plant model. It has been observed that the plant is capable of consistently generating 50% of its rated capacity irrespective of limitations in solar and wind resources.

Keywords： hybrid vertical axis wind turbine     Stirling engine     solar-thermal energy     wind energy     constant torque spring    

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Recycled glass replacement as fine aggregate in self-compacting concrete

Yasser SHARIFI, Mahmoud HOUSHIAR, Behnam AGHEBATI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 419-428 doi: 10.1007/s11709-013-0224-8

Abstract: Therefore, replacement of waste glass with fine aggregate in SCC should deeply be investigated comparedThe aim of the present study is to investigate the effect of glass replacement with fine aggregate onIn present study, fine aggregate has been replaced with waste glass in six different weight ratios rangingdifferent glass replacement ratios is not remarkable, thus it can be produced SCC with waste glass as fine

Keywords： Self Compacting Concrete (SCC)     recycle glass     fine aggregate     fresh and hardened properties    

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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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Isolating higher yielding and more stable rice genotypes in stress environments: fine-tuning a selection

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023521

Abstract:

● Score index methods readily discriminate genotypes adapted to a target environment.

Keywords： Aerobic rice     breeding selection     drought resilience     production capacity index     resilience capacity index     stress score index     upland    

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β-Nickel hydroxide cathode material for nano-suspension redox flow batteries

Yue LI, Cheng HE, Elena V. TIMOFEEVA, Yujia DING, Javier PARRONDO, Carlo SEGRE, Vijay RAMANI

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 401-409 doi: 10.1007/s11708-017-0496-0

Abstract: absorption spectroscopy to obtain the shift in the oxidation state of Ni (X-ray adsorption near edge structuredistances between Ni and surrounding atoms in charged and discharged states (extended X-ray absorption finestructure, EXAFS).

Keywords： sub>2     scanning electronic microscopy (SEM)     X-ray diffraction (XRD)     X-ray adsorption near edge structure(XANES)     extended X-ray absorption fine structure (EXAFS)    

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Long-term trends of fine particulate matter and chemical composition in the Pearl River Delta Economic

Xuemei WANG,Weihua CHEN,Duohong CHEN,Zhiyong WU,Qi Fan

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 53-62 doi: 10.1007/s11783-014-0728-z

Abstract: Understanding the trends in PM levels is essential for formulating clean air plans. This paper analyzes PM data from various published sources for the years 2000 to 2010 in the Pearl River Delta Economic Zone (PRDEZ). The long-term variation in PM mass concentration is analyzed. Results show that PM , organic carbon (OC), elemental carbon (EC), and show a similar trend, increasing before 2005 and then decreasing slightly. The annual average PM concentration ranges from 49.1 μg·m in 2000 to 64.3 μg·m in 2010, with a peak of 84.1 μg·m in 2004. None of these 11 years meets the new National Ambient Air Quality standard (NAAQS) for PM (35 μg·m ). Overall average concentrations of OC, EC, and are 13.0, 6.5, and 11.8 μg·m , respectively. and respectively have concentrations of 1.5 μg·m and 2.9 μg·m in 2000 and 6.4 μg·m and 5.3 μg·m in 2010, with a statistically significant average annual trend of+ 0.2 μg·m ·yr and+ 0.1 μg·m ·yr . In certain geographic regions, OC and EC contribute most of the PM , while in other regions secondary water-soluble ions are more important. In general, OC and are the dominant components of PM , contributing 20.6% and 18.6%, respectively. These results provide, for the first time, a better understanding of the long-term PM characteristics and trends, on a species-by-species basis, in the PRDEZ. The results indicate that PM abatement needs to prioritize secondary species.

Keywords： long-term trends     fine particulate matter     chemical components     Pearl River Delta Economic Zone (PRDEZ)    

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Title Author Date Type Operation

Theoretical Developments and Experimental Examinations in Special Relativity

Huang Zhixun

Journal Article

Effect of fine solid particles on absorption rate of gaseous CO

LU Sumin, MA Youguang, SHEN Shuhua, ZHU Chunying

Journal Article

and siderite: Evidence from sorption kinetics, sequential extraction and extended X-ray absorption fine-structure

Journal Article

Research progress on low dielectric constant modification of cellulose insulating paper for power transformers

Journal Article

Collaborative control of fine particles and ozone required in China for health benefit

Journal Article

Properties of cement grout modified with ultra-fine slag

Sowmini GOPINATHAN, K B ANAND

Journal Article

Confinement properties of circular concrete columns wrapped with prefabricated textile-reinforced fine

Journal Article

Fine Chemicals in the New Century

Yang Jinzong

Journal Article

The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

Mgboawaji Claude UJILE; Samuel Jonah ABBEY

Journal Article

Analysis and characterization of wind-solar-constant torque spring hybridized model

Shantanu ACHARYA,Subhadeep BHATTACHARJEE

Journal Article

Recycled glass replacement as fine aggregate in self-compacting concrete

Yasser SHARIFI, Mahmoud HOUSHIAR, Behnam AGHEBATI

Journal Article

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

Journal Article

Isolating higher yielding and more stable rice genotypes in stress environments: fine-tuning a selection

Journal Article

β-Nickel hydroxide cathode material for nano-suspension redox flow batteries

Yue LI, Cheng HE, Elena V. TIMOFEEVA, Yujia DING, Javier PARRONDO, Carlo SEGRE, Vijay RAMANI

Journal Article

Long-term trends of fine particulate matter and chemical composition in the Pearl River Delta Economic

Xuemei WANG,Weihua CHEN,Duohong CHEN,Zhiyong WU,Qi Fan

Journal Article