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Flexural-torsional buckling behavior of aluminum alloy beams

Xiaonong GUO,Zhe XIONG,Zuyan SHEN

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 163-175 doi: 10.1007/s11709-014-0272-8

Abstract: Finally, on the basis of the experimental and analytical results, theoretical formulae to estimate the

Keywords： flexural-torsional buckling     aluminum alloy beams (AAB)     finite element method (FEM)     theoretical formula    

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Study on temperature effects of single expansion joint bridge

Zhao Yibin and Shao Xudong

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 103-112

Abstract: Considering the distribution and development rule of cracks in approach pavement, theoretical formulas

Keywords： single expansion bridge     temperature effect     stress and deformation     theoretical formula     parameter analysis    

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Deriving Improved Newton's Second Law and the Law of Gravity at One Time with Form of Fractal Formula

Fu Yuhua

Strategic Study of CAE 2003, Volume 5, Issue 6,   Pages 55-58

Abstract:

Newton's second law and the law of gravity are summarized with experimental results. For discussing the possibility of deriving the two laws theoretically, according to the law of conservation of energy, the method of deriving improved Newton's second law and the law of gravity at one time with variable dimension fractal method is presented for an example (a small ball moves down along a long incline). For the sake of convenience, the results suitable for this example with the constant dimension fractal form are as follows： improved law of gravity F = - GMm/r1.99989 , and improved Newton's second law F = ma1.01458.

Keywords： Newton & acute     s second law     the law of gravity     theoretical derivation    

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A review on different theoretical models of electrocaloric effect for refrigeration

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 478-503 doi: 10.1007/s11708-023-0884-6

Abstract: This paper reviews the electrocaloric effect of ferroelectric materials based on different theoretical

Keywords： electrocaloric effect     effective Hamiltonian     phase-field modeling     different theoretical models    

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Experimental Demonstrations and Analysis for Continuous Rolling Tension Formula

Zhang Jinzhi,Zhao Houxin,Wang Zhe,Wang Baoluo

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 73-77

Abstract:

The continuous rolling tension formula is the core of the theory andIn 1960s, the author introduced continuous rolling differential formula, the dynamic tension formulafor multi-stands and the stable state tension formula.All these formuls have been discussed in detail.The Japanese derived the tension formula in theory inHerein, the tension formula is demonstrated by employing the data of the experimental results made by

Keywords： tension formula     experimental demonstrations     analytic root     deterministic    

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NOx removal by non-thermal plasma reduction: experimental and theoretical investigations

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1476-1484 doi: 10.1007/s11705-022-2165-z

Abstract: Green and efficient formula>Oxformulaformula>theoretical study on the formula> Keywords： ${\rm{NO}}_x $ removal     NTP reduction     mechanism     energy consumption    

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The Method and Formula for Stability Factor of Slope with State of Soil Original Stress

Wang Guoti

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 80-84

Abstract: In this paper, in consideration of the state of soil original stress, the calculating formula for safetyThere are many examples of safety factor using the formula of this paper, which have been calculatedThe formula have showed their clear concept, simple calculation and dependable result.

Keywords： ateral stress coefficient K0     state of original stress     formula of safety factor of stability    

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Thermal transport properties of monolayer phosphorene: a mini-review of theoretical studies

Guangzhao QIN, Ming HU

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 87-96 doi: 10.1007/s11708-018-0513-y

Abstract: Phosphorene, a two-dimensional (2D) elemental semiconductor with a high carrier mobility and intrinsic direct band gap, possesses fascinating chemical and physical properties distinctively different from other 2D materials. Its rapidly growing applications in nano-/opto-electronics and thermoelectrics call for fundamental understanding of the thermal transport properties. Considering the fact that there have been so many studies on the thermal transport in phosphorene, it is on emerging demand to have a review on the progress of previous studies and give an outlook on future work. In this mini-review, the unique thermal transport properties of phosphorene induced by the hinge-like structure are examined. There exists a huge deviation in the reported thermal conductivity of phosphorene in literature. Besides, the mechanism underlying the deviation is discussed by reviewing the effect of different functionals and cutoff distance in calculating the thermal transport properties of phosphorene. It is found that the (vdW) interactions play a key role in the formation of resonant bonding, which leads to long-ranged interactions. Taking into account of the vdW interactions and including the long-ranged interactions caused by the resonant bonding with large cutoff distance are important for getting the accurate and converged thermal conductivity of phosphorene. Moreover, a fundamental insight into the thermal transport is provided based on the review of resonant bonding in phosphorene. This mini-review summarizes the progress of the thermal transport in phosphorene and gives an outlook on future horizons, which would benefit the design of phosphorene based nano-electronics.

Keywords： thermal transport     phosphorene     resonant bonding    

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Prediction of the theoretical and semi-empirical model of ambient temperature

Foued CHABANE,Noureddine MOUMMI,Abdelhafid BRIMA,Abdelhafid MOUMMI

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 268-276 doi: 10.1007/s11708-016-0413-y

Abstract: It is well known that the ambient temperature is a sensitive parameter which has a great effect on biology, technology, geology and even on human behavior. A prediction is a statement about an uncertain event. It is often, but not always, based upon experience or knowledge. Although guaranteed accurate information about the future is in many cases impossible, prediction can be useful to assist in making plans about possible developments. As a result, temperature profiles can be developed which accurately represent the expected ambient temperature exposure that this environment experiences during measurement. The ambient temperature over time is modeled based on the previous and data and using a Lagrange interpolation. To observe the comprehensive variation of ambient temperature the profile must be determined numerically. The model proposed in this paper can provide an acceptable way to measure the change in ambient temperature.

Keywords： ambient temperature     environment     correlation     theoretical model     semi-empirical    

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Theoretical and technological exploration of deep

Heping XIE, Yang JU, Shihua REN, Feng GAO, Jianzhong LIU, Yan ZHU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 603-611 doi: 10.1007/s11708-019-0643-x

Abstract: To effectively acquire coal resources deeper than 2000 m, new theoretical and technological conceptsThen, it presents a new theoretical concept, including the theories of mining-induced rock mechanics,In summary, this paper develops new theoretical and technological systems for accomplishing groundbreaking

Keywords： coal resource     deep in situ     fluidized mining     theoretical system     key technologies     strategic roadmap    

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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.It is proved that the theory is rational and correct by comparing the experimental flow rate and the theoreticalIn 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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Lingguizhugan Decoction, a Chinese herbal formula, improves insulin resistance in overweight/obese subjects

Frontiers of Medicine 2022, Volume 16, Issue 5,   Pages 745-759 doi: 10.1007/s11684-021-0880-3

Abstract: Lingguizhugan Decoction (LGZG) has been investigated in basic studies, with satisfactory effects on insulin resistance in non-alcoholic fatty liver disease (NAFLD). This translational approach aimed to explore the effect and underlying mechanism of LGZG in clinical setting. A randomized, double-blinded, placebo-controlled trial was performed. A total of 243 eligible participants with NAFLD were equally allocated to receive LGZG (two groups: standard dose and low dose) or placebo for 12 weeks on the basis of lifestyle modifications. The primary efficacy variable was homeostasis model assessment of insulin resistance (HOMA-IR). Analyses were performed in two populations in accordance with body mass index (BMI; overweight/obese, BMI ≥ 24 kg/m2; lean, BMI < 24 kg/m 2). For overweight/obese participants, low-dose LGZG significantly decreased their HOMA-IR level compared with placebo (−0.19 (1.47) versus 0.08 (1.99),P = 0.038). For lean subjects, neither dose of LGZG showed a superior effect compared with placebo. Methylated DNA immunoprecipitation sequencing and real-time qPCR found that the DNA N6-methyladenine modification levels of protein phosphatase 1 regulatory subunit 3A (PPP1R3A) and autophagy related 3 (ATG3) significantly increased after LGZG intervention in overweight/obese population. Low-dose LGZG effectively improved insulin resistance in overweight/obese subjects with NAFLD. The underlying mechanism may be related to the regulation of DNA N6-methyladenine modification of PPP1R3A and ATG3. Lean subjects may not be a targeted population for LGZG.

Keywords： insulin resistance     non-alcoholic fatty liver disease     Chinese herbal medicine     randomized controlled trial     DNA N6-methyladenine modification    

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Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1404-8

Abstract:

• Possible formation pathways of H2S were revealed in thiophene pyrolysis.

Keywords： Density functional theory     Waste rubber     Thiophene     H2S     Pyrolysis    

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Iteration framework for solving mixed lubrication computation problems

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 635-648 doi: 10.1007/s11465-021-0632-8

Abstract: A discretization formula of the Reynolds equation, which is based on the Crank–Nicolson method, is proposed

Keywords： mixed lubrication     discretization formula     relative error     Reynolds equation     asperity    

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enhancement in high acidity using di-(2-ethylhexyl)phosphoric acid with [Cl] present: an experimental and theoretical

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 56-67 doi: 10.1007/s11705-022-2185-8

Abstract: Separation of vanadium from black shale leaching solution at low pH is very meaningful, which can effectively avoid the generation of alkali neutralization slag and the resulting vanadium loss. In this study, coordination mechanism of vanadium in acid leaching solution at low pH was investigated with the intervention of chloride ions. Under the conditions of pH 0.8, di-(2-ethylhexyl)phosphoric acid concentration of 20%, phase ratio of 1:2, and extraction time of 8 min, the vanadium extraction could reach 80.00%. The Fourier transform infrared and electrospray ionization results reveal that, despite the fact that the chloride ion in the leachate could significantly promote vanadium extraction, the chloride ion does not enter the organic phase, indicating an intriguing phenomenon. Among Cl−–V, SO42−–V, and H2O–V, the V–Cl bond is longer and the potential difference between coordinate ions and vanadium is smaller. Therefore, VO2+ gets easily desorbed with chloride ions and enter the organic phase. At the same time, the hydrogen ions of di-(2-ethylhexyl)phosphoric acid also enter the water phase more easily, which reduces the pH required for the extraction reaction.

Keywords： vanadium     black shale     solvent extraction     high acidity extraction    

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Title Author Date Type Operation

Flexural-torsional buckling behavior of aluminum alloy beams

Xiaonong GUO,Zhe XIONG,Zuyan SHEN

Journal Article

Study on temperature effects of single expansion joint bridge

Zhao Yibin and Shao Xudong

Journal Article

Deriving Improved Newton's Second Law and the Law of Gravity at One Time with Form of Fractal Formula

Fu Yuhua

Journal Article

A review on different theoretical models of electrocaloric effect for refrigeration

Journal Article

Experimental Demonstrations and Analysis for Continuous Rolling Tension Formula

Zhang Jinzhi,Zhao Houxin,Wang Zhe,Wang Baoluo

Journal Article

NOx removal by non-thermal plasma reduction: experimental and theoretical investigations

Journal Article

The Method and Formula for Stability Factor of Slope with State of Soil Original Stress

Wang Guoti

Journal Article

Thermal transport properties of monolayer phosphorene: a mini-review of theoretical studies

Guangzhao QIN, Ming HU

Journal Article

Prediction of the theoretical and semi-empirical model of ambient temperature

Foued CHABANE,Noureddine MOUMMI,Abdelhafid BRIMA,Abdelhafid MOUMMI

Journal Article

Theoretical and technological exploration of deep

Heping XIE, Yang JU, Shihua REN, Feng GAO, Jianzhong LIU, Yan ZHU

Journal Article

Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical

ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong

Journal Article

Lingguizhugan Decoction, a Chinese herbal formula, improves insulin resistance in overweight/obese subjects

Journal Article

Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Journal Article

Iteration framework for solving mixed lubrication computation problems

Journal Article

enhancement in high acidity using di-(2-ethylhexyl)phosphoric acid with [Cl] present: an experimental and theoretical

Journal Article