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Fluorene-based narrow-band-gap copolymers for red light-emitting diodes and bulk heterojunction photovoltaic

SUN Mingliang, WANG Li, XIA Yangjun, DU Bin, LIU Ransheng, CAO Yong

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 257-264 doi: 10.1007/s11705-008-0052-x

Abstract: A series of narrow band-gap conjugated copolymers (PFO-DDQ) derived from 9,9-dioctylfluorene (DOF) andEfficient energy transfer due to exciton trapping on narrow-band-gap DDQ sites has been observed.This indicates that these kinds of low band-gap polymers are promising candidates for polymeric solar

Keywords： simulator     Efficient     band-gap     PFO-DDQ50     intensity    

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Calculations of narrow-band transimissities and the Planck mean absorption coefficients of real gasesusing line-by-line and statistical narrow-band models

Huaqiang CHU, Mingyan GU, Huaichun ZHOU, Fengshan LIU

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 41-48 doi: 10.1007/s11708-013-0292-4

Abstract: Narrow-band transmissivities in the spectral range of 150 to 9300 cm and at a uniform resolution of25 cm were calculated using the statistical narrow-band (SNB) model with the band parameters of SoufianiCalculations of narrow-band transmissivity were conducted for gas columns of different lengths and containingNarrow-band transmissivities calculated by the SNB model are in large relative error at many bands.

Keywords： transimissity     HITEMP     HITRAN     Planck mean absorption coefficients    

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The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad

Liu Liangyan

Strategic Study of CAE 2001, Volume 3, Issue 9,   Pages 86-94

Abstract: Then the manufacture technology of band optical fiber including its structure, coatings, properties andMulti-core optical fiber band cable manufacture technology such as twisted loose-tube, center loose-tube, frame, dry core band optical cable was also discussed.

Keywords： optical communication     low transmission loss optical fiber     optical fiber band     band optical fiber cable    

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Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 403-411 doi: 10.1007/s11465-016-0405-y

Abstract: To study the performance of air bearing center cross gap, finite element models (FEMs) were establishedbased on air motion and Reynolds equations, effects of air supply pressure, and gap parameters on theoverturning moment and bearing capacity of air bearing center cross gap were analyzed.When gap width is lesser than 1 mm and gap depth is lower than 0.4 mm, bearing capacity and overturningA gap height difference results in the bearing capacity dropping rapidly.

Keywords： neutron stress spectrometer     sample table     support system     air bearing     center cross gap     simulation     experiment    

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Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 390-405 doi: 10.1007/s11465-020-0588-0

Abstract: In this study, a level set band method is proposed to overcome this drawback in handling topology changescontinuity of objective and constraint functions by incorporating one parameter, namely, level set bandproposed method demonstrates a flexible topology change by applying a certain size of the level set band

Keywords： level set method     topology optimization     density-based method     level set band    

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Bridging the gap: Neuro-Symbolic Computing for advanced AI applications in construction

Frontiers of Engineering Management   Pages 727-735 doi: 10.1007/s42524-023-0266-0

Abstract: Deep Learning (DL) has revolutionized the field of Artificial Intelligence (AI) in various domains such as computer vision (CV) and natural language processing. However, DL models have limitations including the need for large labeled datasets, lack of interpretability and explainability, potential bias and fairness issues, and limitations in common sense reasoning and contextual understanding. On the other side, DL has shown significant potential in construction for safety and quality inspection tasks using CV models. However, current CV approaches may lack spatial context and measurement capabilities, and struggle with complex safety and quality requirements. The integration of Neuro-Symbolic Computing (NSC), an emerging field that combines DL and symbolic reasoning, has been proposed as a potential solution to address these limitations. NSC has the potential to enable more robust, interpretable, and accurate AI systems in construction by harnessing the strengths of DL and symbolic reasoning. The combination of symbolism and connectionism in NSC can lead to more efficient data usage, improved generalization ability, and enhanced interpretability. Further research and experimentation are needed to effectively integrate NSC with large models and advance CV technologies for precise reporting of safety and quality inspection results in construction.

Keywords： advanced AI in construction     safety and quality inspection     Neuro-Symbolic Computing     Deep Learning     computer vision    

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Wide gap active brazing of ceramic-to-metal-joints for high temperature applications

K. Bobzin,L. Zhao,N. Kopp,S. Samadian Anavar

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 71-74 doi: 10.1007/s11465-014-0291-0

Abstract: metal, active elements and WC particles were analyzed to understand the mechanism of the so called wide gap

Keywords： wide gap     active brazing     nickel filler metals     high temperature application     WC     Al2O3   

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Organophosphate esters in sediment from Taihu Lake, China: Bridging the gap between riverine sources

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1464-9

Abstract:

• Eleven OPEs were detected in river sediment and lake sediment in Taihu Lake.

Keywords： Organophosphate esters     Partition     Vertical distribution     Composition profile     Positive matrix factorization    

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Investigating the role of exiting vehicles and turn indicator usage in gap acceptance at single-lane

Nathan P. BELZ

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 8-16 doi: 10.1007/s11709-016-0365-7

Abstract: This research addresses the nature of gap distributions and use of turn indicators by exiting vehicles

Keywords： roundabouts     exiting vehicles     turn indicator use     headways    

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between office workers’ staying and workstation attributes in a non-territorial office using ultra wide band

Xinnan ZHANG, Takashi IZATO, Junzo MUNENOTO, Daisuke MATSUSHITA, Tetsu YOSHIDA

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4,   Pages 438-449 doi: 10.1007/s11709-010-0076-4

Abstract: staying and moving characteristics of office workers in a non-territorial office using an ultra wide band

Keywords： workplace     non-territorial office     staying behavior     ultra wide band (UWB)     sensor network    

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Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 235-240 doi: 10.1007/s11465-017-0458-6

Abstract: We describe the formation of nested wrinkles created by the thermal mismatch between a narrow-band thinWhen a film is described as “narrow-band”, it literally means that the film band width is much shorterA silicon mask was used during film sputtering to create narrow-band films on poly (dimethylsiloxane)

Keywords： nested and hierarchical wrinkles     morphology     amplitude saturation     boundary effect    

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Existence of complete band gaps in 2D steel-water phononic crystal with square lattice

Cunfu HE, Huanyu ZHAO, Ruiju WEI, Bin WU

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 450-454 doi: 10.1007/s11465-010-0105-y

Abstract: This paper theoretically and experimentally studies the existence of complete band gaps in two-dimensionalThe band structure of phononic crystal is calculated by a plane wave expansion (PWE) method.immersion transmission technique, the overlapping transmission spectra of acoustic waves, a complete bandgap, is experimentally measured along the two high-symmetry directions of the first irreducible Brillouingap.

Keywords： phononic crystal     plane wave expansion (PWE) method     experimental study    

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Bridging the gap between laboratory and field moduli of asphalt layer for pavement design and assessment

Huailei CHENG; Liping LIU; Lijun SUN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 267-280 doi: 10.1007/s11709-022-0811-7

Abstract: Asphalt pavement is a key component of highway infrastructures in China and worldwide. In asphalt pavement design and condition assessment, the modulus of the asphalt mixture layer is a crucial parameter. However, this parameter varies between the laboratory and field loading modes (i.e., loading frequency, compressive or tensile loading pattern), due to the viscoelastic property and composite structure of the asphalt mixture. The present study proposes a comprehensive frequency-based approach to correlate the asphalt layer moduli obtained under two field and three laboratory loading modes. The field modes are vehicular and falling weight deflectometer (FWD) loading modes, and the laboratory ones are uniaxial compressive (UC), indirect tensile (IDT), and four-point bending (4PB) loading modes. The loading frequency is used as an intermediary parameter for correlating the asphalt layer moduli under different loading modes. The observations made at two field large-scale experimental pavements facilitate the correlation analysis. It is found that the moduli obtained via laboratory 4PB tests are pretty close to those of vehicular loading schemes, in contrast to those derived in UC, IDT, and FWD modes, which need to be adjusted. The corresponding adjustment factors are experimentally assessed. The applications of those adjustment factors are expected to ensure that the moduli measured under different loading modes are appropriately used in asphalt mixture pavement design and assessment.

Keywords： asphalt mixture layer     stiffness modulus     loading mode     UC/4PB/IDT     FWD     frequency    

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Nongray radiation from gas and soot mixtures in planar plates based on statistical narrow-band spectral

Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 149-158 doi: 10.1007/s11708-010-0124-8

Abstract: Based on the statistical narrow-band (SNB) spectral model with an exponential-tailed inverse intensityThe effect of soot volume fraction up to 1×10 on the source term, the narrow-band radiation intensities

Keywords： soot     combustion     SNB model     nongray radiation    

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An extended cell-based smoothed discrete shear gap method (XCS-FEM-DSG3) for free vibration analysis

M. H. NGUYEN-THOI,L. Le-ANH,V. Ho-HUU,H. Dang-TRUNG,T. NGUYEN-THOI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 341-358 doi: 10.1007/s11709-015-0302-1

Abstract: A cell-based smoothed discrete shear gap method (CS-FEM-DSG3) was recently proposed and proven to beextended finite element method (XFEM) to give a so-called extended cell-based smoothed discrete shear gap

Keywords： cracked Reissner-Mindlin shell     free vibration analysis     cell-based smoothed discrete shear gap method(CS-FEM-DSG3)     extended cell-based smoothed discrete shear gap method (XCS-FEM-DSG3)     smoothed finite element    

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Title Author Date Type Operation

Fluorene-based narrow-band-gap copolymers for red light-emitting diodes and bulk heterojunction photovoltaic

SUN Mingliang, WANG Li, XIA Yangjun, DU Bin, LIU Ransheng, CAO Yong

Journal Article

Calculations of narrow-band transimissities and the Planck mean absorption coefficients of real gasesusing line-by-line and statistical narrow-band models

Huaqiang CHU, Mingyan GU, Huaichun ZHOU, Fengshan LIU

Journal Article

The Latest Development of Optical Fiber, Optical Fiber Band and Optical Cable Technology Abroad

Liu Liangyan

Journal Article

Air bearing center cross gap of neutron stress spectrometer sample table support system

Yang LI,Yunxin WU,Hai GONG,Xiaolei FENG

Journal Article

Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Journal Article

Bridging the gap: Neuro-Symbolic Computing for advanced AI applications in construction

Journal Article

Wide gap active brazing of ceramic-to-metal-joints for high temperature applications

K. Bobzin,L. Zhao,N. Kopp,S. Samadian Anavar

Journal Article

Organophosphate esters in sediment from Taihu Lake, China: Bridging the gap between riverine sources

Journal Article

Investigating the role of exiting vehicles and turn indicator usage in gap acceptance at single-lane

Nathan P. BELZ

Journal Article

between office workers’ staying and workstation attributes in a non-territorial office using ultra wide band

Xinnan ZHANG, Takashi IZATO, Junzo MUNENOTO, Daisuke MATSUSHITA, Tetsu YOSHIDA

Journal Article

Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

Journal Article

Existence of complete band gaps in 2D steel-water phononic crystal with square lattice

Cunfu HE, Huanyu ZHAO, Ruiju WEI, Bin WU

Journal Article

Bridging the gap between laboratory and field moduli of asphalt layer for pavement design and assessment

Huailei CHENG; Liping LIU; Lijun SUN

Journal Article

Nongray radiation from gas and soot mixtures in planar plates based on statistical narrow-band spectral

Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU

Journal Article

An extended cell-based smoothed discrete shear gap method (XCS-FEM-DSG3) for free vibration analysis

M. H. NGUYEN-THOI,L. Le-ANH,V. Ho-HUU,H. Dang-TRUNG,T. NGUYEN-THOI

Journal Article