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Digitalization optical open loop test system for fiber optic gyroscope

ZHANG Deng-wei, SHU Xiao-wu, MU Xu-dong, LIU Cheng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 434-438 doi: 10.1007/s11465-006-0053-8

Abstract: rate is 8 MB/s and the open loop detection system for optic fiber gyros achieves standardization and completedigitalization simultaneously.

Keywords： stability     real-time controlling     standardization     controlling procedure     complete digitalization    

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Research progress and prospects of complete ammonia oxidizing bacteria in wastewater treatment

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1555-2

Abstract:

• Comammox bacteria have unique physiological characteristics.

Keywords： Complete ammonia oxidizing (comammox) bacteria     Nitrogen cycle     Physiological characteristics     Wastewater    

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Integration of microbial reductive dehalogenation with persulfate activation and oxidation (Bio-RD-PAO) for complete

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1457-8

Abstract:

•Bio-RD-PAO can effectively and extensively remove organohalides.

Keywords： Bio-RD-PAO     Microbial reductive dehalogenation     Persulfate     Organohalide respiration     Complete attenuation    

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Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 265-270 doi: 10.1007/s11783-009-0019-2

Abstract: CoO-SnO hybrid oxides were prepared by the coprecipitation method and were used to oxidate methane (CH) in presence of oxygen. The CoO-SnO with a molar ratio of Co/(Co+Sn) at 0.75 exhibited the highest catalytic activity among all the CoO-SnO hybrid oxides. Experimental results showed that the catalysts were considerably stable in the CH combustion reaction, and were verified by X-ray photoelectron spectra (XPS). It was found that CoO was the active species, and SnO acted as a support or a promoting component in the CoO-SnO hybrid oxides. The surface area was not a major factor that affected catalytic activity. The hydrogen temperature-programmed reduction (H-TPR) results demonstrated that the interaction between cobalt and tin oxides accelerated the mobility of oxygen species of CoO-SnO, leading to higher catalytic activity.

Keywords： Co3O4-SnO2     complete oxidation     methane (CH4)    

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Strategic Path for High-Quality Development of Construction Industry Driven by Digitalization

Sun Jie, Gong Xiaonan, Zhang Hong, Su Xing

Strategic Study of CAE 2021, Volume 23, Issue 4,   Pages 56-63 doi: 10.15302/J-SSCAE-2021.04.006

Abstract:

China’s construction industry has maintained a strong momentum of development these years; however, it still requires improvement in terms of efficiency, quality, safety, and environment protection. China’s construction industry is expected to be transformed and upgraded through digital science and technology innovation, thereby achieving high-quality development. Research methods used in this study include literature review, expert interview, and questionnaire survey. In this article, we first summarize the relationship between digital technology and construction industry transformation and analyze the development status of digital science and technology innovation in the construction industry. Subsequently, we summarize the ecological elements that drive the digital science and technology innovation of the construction industry from the perspectives of government departments, participating organizations, and market environment. Furthermore, we propose strategic paths to drive the high-quality development of the construction industry by means of digital science and technology innovation. This study is expected to provide policy recommendations and an implementation framework for the high-quality development of the industry.

Keywords： construction industry     digitalization     science and technology innovation     high-quality development    

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Porous silica synthesis out of coal fly ash with no residue generation and complete silicon separation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1712-2

Abstract:

● Both amorphous and crystalline silicon are completely separated from coal fly ash.

Keywords： Coal fly ash     Alkali fusion     Micro-/meso-porous Si     Zeolite MCM-48     Crystalline transformation    

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Synthesis of methanol and ethanol over CuZnAl slurry catalyst prepared by complete liquid-phase technology

Wei HUANG, Linmei YU, Wenhui LI, Zhili MA

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 472-475 doi: 10.1007/s11705-010-0525-6

Abstract: A new method, named the complete liquid-phase technology, has been applied to prepare catalysts for methanol

Keywords： methanol     slurry     ethanol     complete liquid-phase technology     CuZnAl catalyst    

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Digitalization for supply chain resilience and robustness: The roles of collaboration and formal contracts

Frontiers of Engineering Management   Pages 5-19 doi: 10.1007/s42524-022-0229-x

Abstract: Accordingly, this study intends to explore how digitalization helps build supply chain resilience andand supply chain resilience and an indirect-only mediation effect on the relationship between digitalizationFindings reveal the differential roles of digitalization as a technical factor and supply chain collaborationParadoxically, formal contracts enhance the relationship between digitalization and supply chain resilienceThe validation of moderating effects determines the boundary conditions of digitalization and supply

Keywords： digitalization     supply chain     resilience     robustness     collaboration     formal contract    

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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-dimensionalultrasonic immersion transmission technique, the overlapping transmission spectra of acoustic waves, a completeThere is a very good agreement between the experimental result and the range of frequencies of the complete

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

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Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 247-251 doi: 10.1007/s11705-018-1710-2

Abstract: Nanostructured metal surfaces have been known to exhibit properties that deviate from that of the bulk material. By simply modifying the texture of a metal surface, various unique optical properties can be observed. In this paper, we present a simple two step electrochemical process combining electrodeposition and anodization to generate black gold surfaces. This process is simple, versatile and up-scalable for the production of large surfaces. The black gold films have remarkable optical behavior as they absorb more than 93% of incident light over the entire visible spectrum and also exhibit no specular reflectance. A careful analysis by scanning electron microscopy reveals that these unique optical properties are due to their randomly rough surface, as they consist in a forest of dendritic microstructures with a nanoscale roughness. This new type of black films can be fabricated to a large variety of substrates, turning them to super absorbers with potential applications in photovoltaic solar cells or highly sensitive detectors and so on.

Keywords： nanostructuration     light absorption     coating     gold     electrodeposition     anodization    

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Big data and machine learning: A roadmap towards smart plants

Frontiers of Engineering Management   Pages 623-639 doi: 10.1007/s42524-022-0218-0

Abstract: Industry 4.0 aims to transform chemical and biochemical processes into intelligent systems via the integration of digital components with the actual physical units involved. This process can be thought of as addition of a central nervous system with a sensing and control monitoring of components and regulating the performance of the individual physical assets (processes, units, etc.) involved. Established technologies central to the digital integrating components are smart sensing, mobile communication, Internet of Things, modelling and simulation, advanced data processing, storage and analysis, advanced process control, artificial intelligence and machine learning, cloud computing, and virtual and augmented reality. An essential element to this transformation is the exploitation of large amounts of historical process data and large volumes of data generated in real-time by smart sensors widely used in industry. Exploitation of the information contained in these data requires the use of advanced machine learning and artificial intelligence technologies integrated with more traditional modelling techniques. The purpose of this paper is twofold: a) to present the state-of-the-art of the aforementioned technologies, and b) to present a strategic plan for their integration toward the goal of an autonomous smart plant capable of self-adaption and self-regulation for short- and long-term production management.

Keywords： learning     artificial intelligence     smart sensor     cyber–physical system     Industry 4.0     intelligent system     digitalization    

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Smart contract applications in the built environment: How prepared are Nigerian construction stakeholders?

Frontiers of Engineering Management doi: 10.1007/s42524-023-0275-z

Abstract: Studies have demonstrated that advanced technology, such as smart contract applications, can enhance both pre- and post-contract administration within the built environment sector. Smart contract technology, exemplifying blockchain technologies, has the potential to improve transparency, trust, and the security of data transactions within this sector. However, there is a dearth of academic literature concerning smart contract applications within the construction industries of developing countries, with a specific focus on Nigeria. Consequently, this study seeks to explore the relevance of smart contract technology and address the challenges impeding its adoption, offering strategies to mitigate the obstacles faced by smart contract applications. To investigate the stakeholders, this research conducted 14 virtual interview sessions to achieve data saturation. The interviewees encompassed project management practitioners, senior management personnel from construction companies, experts in construction dispute resolution, professionals in construction software, and representatives from government construction agencies. The data obtained from these interviews underwent thorough analysis employing a thematic approach. The study duly recognizes the significance of smart contract applications within the sector. Among the 12 identified barriers, issues such as identity theft and data leakage, communication and synchronization challenges, high computational expenses, lack of driving impetus, excessive electricity consumption, intricate implementation processes, absence of a universally applicable legal framework, and the lack of a localized legal framework were recurrent impediments affecting the adoption of smart contract applications within the sector. The study also delves into comprehensive measures to mitigate these barriers. In conclusion, this study critically evaluates the relevance of smart contract applications within the built environment, with a specific focus on promoting their usage. It may serve as a pioneering effort, especially within the context of Nigeria.

Keywords： built environment industry     digitalization     Nigeria     smart contract     technological revolution    

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Research on key technology of thin seam plough complete equipment

Song Qiushuang

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 33-38

Abstract: present situation of coal mining technology, proposes the technical matters of China's coal plow completeequipment system, gives some technical solutions through analyzing and researching on key technology of complete

Keywords： complete plant of plough     directional and quantitative pushing     heterogeneous geological     selfadaptation    

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A complete modeling and simulation of DFIG based wind turbine system using fuzzy logic control

Abdelhak DIDA,Djilani BENATTOUS

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 143-154 doi: 10.1007/s11708-016-0402-1

Abstract: The current paper talks about the variable speed wind turbine generation system (WTGS). So, the WTGS is equipped with a doubly-fed induction generator (DFIG) and two bidirectional converters in the rotor open circuit. A vector control (VC) of the rotor side converter (RSC) offers independent regulation of the stator active and reactive power and the optimal rotational speed tracking in the power maximization operating mode. A VC scheme for the grid-side converter (GSC) allows an independent regulation of the active and reactive power to exchange with the grid and sinusoidal supply currents and keeps the DC-link voltage constant. A fuzzy inference system (FIS) is adopted as an alternative of the conventional proportional and integral (PI) controller to reject some uncertainties or disturbance. The performances have been verified using the Matlab/Simulink software.

Keywords： wind turbine generation system (WTGS)     doubly-fed induction generator (DFIG)     maximum power point tracking (MPPT)     vector control (VC)     fuzzy logic controller (FLC)    

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Analysis on Methods of Forming the Ideas of Creating a Completely New Product

Shi Aifen,Xie Jianhua

Strategic Study of CAE 2002, Volume 4, Issue 11,   Pages 89-93

Abstract:

Starting with the requirements of the society and consumers, this article focuses on the study of the flowchart and the technique of forming the ideas of creating a completely new product. Taking the analysis of the process of forming the idea of inventing a flying machine as an example, it explores the internal law of forming the ideas of creating a completely new product.

In the course of the study, the following steps are taken： Firstly, find the main characteristics of the product designed in mind. Secondly, look for the matter which possesses these characteristics according to the implicative nature of matter-element. Thirdly, compose these elements on the basis of their internal relations and a proper principle to get a system set of matter-element. Finally, adjust, perfect and evaluate it and get the set of ideas of creating a completely new product.

Keywords： the complete new product     the idea     matter-element     the implicative nature of matter-element    

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Title Author Date Type Operation

Digitalization optical open loop test system for fiber optic gyroscope

ZHANG Deng-wei, SHU Xiao-wu, MU Xu-dong, LIU Cheng

Journal Article

Research progress and prospects of complete ammonia oxidizing bacteria in wastewater treatment

Journal Article

Integration of microbial reductive dehalogenation with persulfate activation and oxidation (Bio-RD-PAO) for complete

Journal Article

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Journal Article

Strategic Path for High-Quality Development of Construction Industry Driven by Digitalization

Sun Jie, Gong Xiaonan, Zhang Hong, Su Xing

Journal Article

Porous silica synthesis out of coal fly ash with no residue generation and complete silicon separation

Journal Article

Synthesis of methanol and ethanol over CuZnAl slurry catalyst prepared by complete liquid-phase technology

Wei HUANG, Linmei YU, Wenhui LI, Zhili MA

Journal Article

Digitalization for supply chain resilience and robustness: The roles of collaboration and formal contracts

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

Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Journal Article

Big data and machine learning: A roadmap towards smart plants

Journal Article

Smart contract applications in the built environment: How prepared are Nigerian construction stakeholders?

Journal Article

Research on key technology of thin seam plough complete equipment

Song Qiushuang

Journal Article

A complete modeling and simulation of DFIG based wind turbine system using fuzzy logic control

Abdelhak DIDA,Djilani BENATTOUS

Journal Article

Analysis on Methods of Forming the Ideas of Creating a Completely New Product

Shi Aifen,Xie Jianhua

Journal Article