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Optimal dome design considering member-related design constraints

Tugrul TALASLIOGLU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1150-1170 doi: 10.1007/s11709-019-0543-5

Abstract: This study proposes to optimize the design of geometrically nonlinear dome structures. A new Multi-objective Optimization Algorithm named Pareto Archived Genetic Algorithm (PAGA), which has an ability of integrating the nonlinear structural analysis with the provisions of American Petroleum Institute specification is employed to optimize the design of ellipse and sphere-shaped dome configurations. Thus, it is possible to investigate how the qualities of optimal designations vary considering the shape, size, and topology-related design variables. Furthermore, the computing efficiency of PAGA is evaluated considering six multi-objective optimization algorithms and eight quality measuring indicators. It is shown that PAGA has a capability of both exploring an increased number of pareto solutions and predicting a pareto front with a higher convergence degree. Moreover, the inclusion of shape-related design variables leads to a decrease in both the weights of dome structures and their load-carrying capacities. However, the designer easily determines the most requested optimal design through the archiving feature of PAGA. Thus, it is also demonstrated that the proposed optimal design procedure increases the correctness degree in the evaluation of optimal dome designs through the tradeoff analysis. Consequently, PAGA is recommended as an optimization tool for the design optimization of geometrically nonlinear dome structures.

Keywords: dome structure     geometric nonlinearity     multi-objective optimization     API RP2A-LRFD    

Combustion and emissions of RP-3 jet fuel and diesel fuel in a single-cylinder diesel engine

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 664-677 doi: 10.1007/s11708-021-0787-3

Abstract: The combustion characteristics and emission behaviors of RP-3 jet fuel were studied and compared to commercialcrank angle (CA) after top dead center (ATDC)) were adjusted to evaluate the engine performances of RPIn comparison to diesel fuel, RP-3 jet fuel shows a retarded heat release and lagged combustion phaseAs a result, RP-3 jet fuel features a longer ignition delay (ID) time, a shorter combustion durationCompared with diesel fuel, the nitrogen oxides (NOx) emissions of RP-3 jet fuel are

Keywords: RP-3 jet fuel     diesel     engine     combustion     emissions    

An experimental study on spray auto-ignition of RP-3 jet fuel and its surrogates

Yaozong DUAN, Wang LIU, Zhen HUANG, Dong HAN

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 396-404 doi: 10.1007/s11708-020-0715-y

Abstract: The spray auto-ignition characteristics of RP-3 jet fuel and its three surrogates, the 70% mol -decane/30% mol 1,2,4-trimethylbenzene blend (Surrogate 1), the 51% mol -decane/49% mol 1, 2, 4-trimethylbenzeneSurrogate 1 and Surrogate 2 possess the same components, but their blending percentages are differentRP-3 jet fuel, respectively.fuel, whereas Surrogates 2 and 3 show quite similar auto-ignition propensity with RP-3 jet fuel.

Keywords: RP-3 jet fuel     surrogate     spray auto-ignition     constant volume combustion chamber    

Experience gained in analyzing severe accidents for WWER RP using CC SOCRAT

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 872-886 doi: 10.1007/s11708-021-0796-2

Abstract: realistic estimates for all parameters important for computational justification of the reactor plant (RP

Keywords: system of codes for realistic analysis of severe accidents (SOCRAT)     design basis accidents (DBAs)     severe accidents (SAs)     computer code (CC)     nuclear power plant (NPP) design     water-cooled water-moderated (WWER)     modeling     model     safety requirements    

High-order moment methods for LRFD including random variables with unknown probability distributions

Zhao-Hui LU, Yan-Gang ZHAO, Zhi-Wu YU

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 288-295 doi: 10.1007/s11709-013-0210-1

Abstract: The reliability-based load and resistance factors design (LRFD) has been widely used in the structuralIn this paper, the high-order moment methods for LRFD including random variables with unknown probabilitycan be determined even when the probability distributions of the basic random variables are unknown; 2)

Keywords: high-order moment methods     applicable range     load and resistance factors     target mean resistance    

API-based assessment on urban air environment bearing capability in China

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1049-1055 doi: 10.1007/s11783-014-0662-0

Abstract: capacity; a new method for assessing urban air environment carrying capacity based on air pollution index (API

Keywords: air pollution index (API)     air environment bearing capability     key city     assessment method    

Damage mode and failure mechanism of starch based API gluelam bonding

Shi Junyou,Xu Wenbiao and Wang Shumin

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 40-44

Abstract:

The starch- based aqueous polymer isocycante(API)gluelam bonding as the

Keywords: bonding structure     accelerated aging     fracture character     damage mode    

An oversampling approach for mining program specifications None

Deng CHEN, Yan-duo ZHANG, Wei WEI, Rong-cun WANG, Xiao-lin LI, Wei LIU, Shi-xun WANG, Rui ZHU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 6,   Pages 737-754 doi: 10.1631/FITEE.1601783

Abstract: Automatic protocol mining is a promising approach for inferring accurate and complete API protocols.Additionally, accurate and complete API protocols are more likely to be achieved.Furthermore, our technique can mine API protocols for classes never even used in programs, which are

Keywords: Object usage scenario     API protocol mining     Program temporal specification mining     Oversampling    

A new slicing method of reverse engineering based on the principle of refraction and reflection

LIU Ya-xiong, ZONG Xue-wen, TANG Yi-ping, LU Bing-heng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 323-328 doi: 10.1007/s11465-006-0041-z

Abstract: Eventually, a RP model of a temporomandibular joint fabricated according to its slicing pictures is illustrated

Keywords: immemorial     RP     reflection     mathematical transformation     temporomandibular    

Improvement in the synthesis of 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid 2-benzothiazolyl

GAO Shihao, SUN Chenghui, ZHAO Xinqi, GAO Changquan

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 80-84 doi: 10.1007/s11705-008-0017-0

Abstract: 2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid 2-benzothiazolyl thioester(III), an importantintermediate of the fourth generation cephalosporins, was efficiently synthesized by reacting 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid (I) with 2,2′-dibenzothiazole disulfide (II) in

Keywords: 5-Amino-1     2     4-thiadiazol-3-yl     1     2-dichloroethane     important intermediate     2-benzothiazolyl thioester     temperature    

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 142-146 doi: 10.1007/s11705-009-0233-2

Abstract: TiO-AlOmixed oxides with different compositions ranging from 40wt-% to 95wt-% of TiO were prepared by sol-gel method and impregnated with different amounts of VO. Supports and catalysts were characterized by X-ray diffraction (XRD), physisorption, temperature preprogrammed reduction (H-TPR), and ammonia temperature programmed desorption (NH-TPD). TiO content in the support had obvious effect on the crystal structure, texture characteristic, acid property, and catalytic activity in dehydrogenation of ethylbenzene (EB) with carbon dioxide. The highest catalytic activity was acquired when the TiO content was 50 wt-%.

Keywords: desorption     different     TiO-AlOmixed     physisorption     ethylbenzene    

Al2O3 and CeO2-promoted MgO sorbents for CO2 capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 83-93 doi: 10.1007/s11705-017-1691-6

Abstract: A series of Al O and CeO modified MgO sorbents was prepared and studied for CO sorption at moderate temperatures. The CO sorption capacity of MgO was enhanced with the addition of either Al O or CeO . Over Al O -MgO sorbents, the best capacity of 24.6 mg-CO /g-sorbent was attained at 100 °C, which was 61% higher than that of MgO (15.3 mg-CO /g-sorbent). The highest capacity of 35.3 mg-CO /g-sorbent was obtained over the CeO -MgO sorbents at the optimal temperature of 200 °C. Combining with the characterization results, we conclude that the promotion effect on CO sorption with the addition of Al O and CeO can be attributed to the increased surface area with reduced MgO crystallite size. Moreover, the addition of CeO increased the basicity of MgO phase, resulting in more increase in the CO capacity than Al O promoter. Both the Al O -MgO and CeO -MgO sorbents exhibited better cyclic stability than MgO over the course of fifteen CO sorption-desorption cycles. Compared to Al O , CeO is more effective for promoting the CO capacity of MgO. To enhance the CO capacity of MgO sorbent, increasing the basicity is more effective than the increase in the surface area.

Keywords: CO2 capture     MgO sorbents     Al2O3     CeO2     flue gas    

A Storage-Driven CO2 EOR for a Net-Zero Emission Target Article

Yueliang Liu, Zhenhua Rui

Engineering 2022, Volume 18, Issue 11,   Pages 79-87 doi: 10.1016/j.eng.2022.02.010

Abstract: >2 emissions by storing CO2 in oil reservoirs.CO2 EOR—whose main target is to realize net-zero or even negative CO2 emissionsStorage-driven CO2 EOR is superior to conventional CO2 EOR in improving sweepingthan conventional CO2 EOR.Moreover, the amount of sequestrated CO2 in storage-driven CO2 EOR exceeds the amount

Keywords: CO2     EOR     Net CO2     emissions     Dimethyl ether     Storage-driven CO2     EOR     CO2     sequestration    

The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: To enhance the stability, the traditional carrier Al2O3 with a small amount, wasintroduced into Pb/SiO2 catalyst in this study.It has been proved that Al2O3 can inhibit the reduction of PbO, and weaken theAs a result, 3Al15Pb/SiO2 catalyst exhibits a much higher stability up to more than 150 h.addition, a simple schematic diagram of the change of surface species on the catalyst surface after Al2<

Keywords: Pb/SiO2     Al2O3     propane dehydrogenation     propene     stability    

Biodegradation of 2-methylisoborneol by bacteria enriched from biological activated carbon

Rongfang YUAN, Beihai ZHOU, Chunhong SHI, Liying YU, Chunlei ZHANG, Junnong GU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 701-710 doi: 10.1007/s11783-011-0367-6

Abstract: One of the most common taste and odour compounds (TOCs) in drinking water is 2-methylisoborneol (2-MIBFour bacterial strains for degrading 2-MIB were isolated from the surface of a biological activated carbonThe removal efficiencies of 2-MIB with initial concentrations of 515 ng·L were 98.4%, 96.3%, 95.0%,The kinetic model showed that biodegradation of 2-MIB at an initial dose of 4.2 mg·L was a pseudo-first-orderThese degraders decomposed 2-MIB to form 2-methylenebornane and 2-methyl-2-bornane as the products.

Keywords: 2-methylisoborneol (2-MIB)     biodegradation     2-methylenebornane     2-methyl-2-bornane     pseudo-first-order reaction    

Title Author Date Type Operation

Optimal dome design considering member-related design constraints

Tugrul TALASLIOGLU

Journal Article

Combustion and emissions of RP-3 jet fuel and diesel fuel in a single-cylinder diesel engine

Journal Article

An experimental study on spray auto-ignition of RP-3 jet fuel and its surrogates

Yaozong DUAN, Wang LIU, Zhen HUANG, Dong HAN

Journal Article

Experience gained in analyzing severe accidents for WWER RP using CC SOCRAT

Journal Article

High-order moment methods for LRFD including random variables with unknown probability distributions

Zhao-Hui LU, Yan-Gang ZHAO, Zhi-Wu YU

Journal Article

API-based assessment on urban air environment bearing capability in China

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Journal Article

Damage mode and failure mechanism of starch based API gluelam bonding

Shi Junyou,Xu Wenbiao and Wang Shumin

Journal Article

An oversampling approach for mining program specifications

Deng CHEN, Yan-duo ZHANG, Wei WEI, Rong-cun WANG, Xiao-lin LI, Wei LIU, Shi-xun WANG, Rui ZHU

Journal Article

A new slicing method of reverse engineering based on the principle of refraction and reflection

LIU Ya-xiong, ZONG Xue-wen, TANG Yi-ping, LU Bing-heng

Journal Article

Improvement in the synthesis of 2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(Z)-methoxyiminoacetic acid 2-benzothiazolyl

GAO Shihao, SUN Chenghui, ZHAO Xinqi, GAO Changquan

Journal Article

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

Journal Article

Al2O3 and CeO2-promoted MgO sorbents for CO2 capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Journal Article

A Storage-Driven CO2 EOR for a Net-Zero Emission Target

Yueliang Liu, Zhenhua Rui

Journal Article

The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Journal Article

Biodegradation of 2-methylisoborneol by bacteria enriched from biological activated carbon

Rongfang YUAN, Beihai ZHOU, Chunhong SHI, Liying YU, Chunlei ZHANG, Junnong GU

Journal Article