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Creation and integration mechanism of instrumentation flexible developing system

Xiaoli XU, Qiushuang LIU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 235-240 doi: 10.1007/s11465-011-0122-5

Abstract: development (R&D) of modern instrumentation products, based on the concept of an instrumentation flexibledeveloping system (IFDS), this paper discusses the creation and open flexible integration mechanism,perfects the integrated supporting environment and integrated system of the flexible interconnection, and constructs the new flexible integrated system.

Keywords： modern instrumentation developing     flexible interconnection     flexible integration mechanism     rapid integration    

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Piezoelectric pump with flexible venous valves for active cell transmission

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0712-4

Abstract: In this study, we designed a piezoelectric pump with a flexible venous valve inspired by that of humanscomputational model of the electric-solid-liquid multi-physical field coupling of the piezoelectric pump with a flexible

Keywords： venous valve     flexible venous valve     cell transmission     organ-on-a-chip system     piezoelectric device    

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Review on flexible perovskite photodetector: processing and applications

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0749-z

Abstract: Next-generation optoelectronics should possess lightweight and flexible characteristics, thus conformingFlexible photodetectors as fundamental devices have been receiving increasing attention owing to theirTypical applications of perovskite-based flexible photodetectors such as optical communication, imageChallenges and future research directions of perovskite-based flexible photodetectors are proposed in, but also to serve as the roadmap for further developments of flexible photodetectors and exploring

Keywords： photodetector     perovskite     flexible     processing     application    

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A review of the scalable nano-manufacturing technology for flexible devices

Wenbin HUANG,Xingtao YU,Yanhua LIU,Wen QIAO,Linsen CHEN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 99-109 doi: 10.1007/s11465-017-0416-3

Abstract: we summarize the status and the limitations of current nano-patterning techniques for scalable and flexible

Keywords： flexible nano-manufacturing     flexible devices     nanofabrication     scalability    

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Analytical dynamic solution of a flexible cable-suspended manipulator

Mahdi BAMDAD

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 350-359 doi: 10.1007/s11465-013-0271-9

Abstract:

Cable-suspended manipulators are used in large scale applications with, heavy in weight and long in span cables. It seems impractical to maintain cable assumptions of smaller robots for large scale manipulators. The interactions among the cables, platforms and actuators can fully evaluate the coupled dynamic analysis. The structural flexibility of the cables becomes more pronounced in large manipulators. In this paper, an analytic solution is provided to solve cable vibration. Also, a closed form solution can be adopted to improve the dynamic response to flexibility. The output is provided by the optimal torque generation subject to the actuator limitations in a mechatronic sense. Finally, the performance of the proposed algorithm is examined through simulations.

Keywords： parallel robot     flexible cable     suspended robot     dynamic    

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Possible role of power-to-heat and power-to-gas as flexible loads in German medium voltage networks

Mark KUPRAT, Martin BENDIG, Klaus PFEIFFER

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 135-145 doi: 10.1007/s11708-017-0472-8

Abstract: This curtailment of RES leads to economic losses and could be avoided through flexible loads.

Keywords： power-to-gas     power-to-heat     flexible loads     ancillary services     coherent energy systems    

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Dynamics Modeling of Spacecraft with Composite Flexible Structures

Qu Guangji,Cheng Daosheng

Strategic Study of CAE 1999, Volume 1, Issue 2,   Pages 52-56

Abstract:

It is a conventional method to build dynamic models of flexible spacecraft with hybrid coordinatesRigid main body is attached by flexible module, to which kinds of large flexible appendages are fixedThe flexible multi-modules main body, taking on a lower stiffness, and several kinds of large flexibleappendages attached to it make the whole spacecraft as an all-flexible structure system.some of its flexible appendages are not fixed to the rigid main body directly.

Keywords： spacecraft     composite flexible structure     dynamics of flexible structures     hybrid coordinate method    

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Estimation of flexible pavement structural capacity using machine learning techniques

Nader KARBALLAEEZADEH, Hosein GHASEMZADEH TEHRANI, Danial MOHAMMADZADEH SHADMEHRI, Shahaboddin SHAMSHIRBAND

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1083-1096 doi: 10.1007/s11709-020-0654-z

Abstract: process regression, M5P model tree, and random forest used for the prediction of structural numbers in flexibleDataset of this paper is related to 759 flexible pavement sections at Semnan and Khuzestan provinces

Keywords： transportation infrastructure     flexible pavement     structural number prediction     Gaussian process regression    

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A literature review of smart warehouse operations management

Frontiers of Engineering Management 2022, Volume 9, Issue 1,   Pages 31-55 doi: 10.1007/s42524-021-0178-9

Abstract: management based on the characteristics of smart warehouses, including the perspectives of information interconnection

Keywords： smart warehouse     operations management     interconnection     automation     integration     sustainability    

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Design and applications of morphing aircraft and their structures

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0750-6

Abstract: structures, lattice technology for reducing structural weight, and multi-mode morphing combined with flexibleThird, the paper discusses multiple challenges, including flexible structures, flexible skins, and control

Keywords： morphing aircraft     additive manufacturing     lattice structure     smart material     flexible structure     flexible    

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A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1208-1220 doi: 10.1007/s11705-023-2304-1

Abstract: Flexible and sustainable sodium lignosulfonate-based electrodes are successfully developed, showing perfectoxide and polyaniline is undoubtedly beneficial to advance the process for the construction of green flexible

Keywords： molecular synergy     pseudocapacitive lignosulfonate     flexible electronic devices     asymmetric supercapacitor    

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Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial

P. SRINIVASA RAO,P. DINESH,G. SARAVANA ILANGO,C. NAGAMANI

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 199-210 doi: 10.1007/s11708-015-0350-1

Abstract: Partial shading is a common phenomenon in PV arrays. They drastically reduce the power output because of mismatch losses, which are reliant on the shape of the shade as well as the locations of shaded panels in the array. The power output can be improved by distributing the shade over various rows to maximize the current entering the node. A Su-Do-Ku configuration can be used to rearrange the physical locations of the PV modules in a total cross tied PV array with the electrical connections left unchanged. However, this arrangement increases the length of the wire required to interconnect the panels thus increasing the line losses. In this paper, an improved Su-Do-Ku arrangement that reduces the length of the wire required for the connection is proposed. The system is designed and simulated in a Matlab/Simulink environment for various shading patterns and the efficacies of various arrangements are compared. The results prove that the power output is higher in the proposed improved Su-Do-Ku reconfiguration technique compared to the earlier proposed Su-Do-Ku technique.

Keywords： array configuration     mismatch losses     partial shading     line losses     Su-Do-Ku arrangement    

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Implementation of a flexible Major Vacation Toll-free Program for small passenger vehicles in China

Meng XU, Ziyou GAO

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 498-499 doi: 10.15302/J-FEM-2017111

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Synthesis and properties of polybenzazoles containing flexible methylene in backbone

XU Xiaohui, LIU Xiaoyun, ZHOU Chengjun, ZHUANG Qixin, HAN Zhewen

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 412-416 doi: 10.1007/s11705-008-0073-5

Abstract: A novel series of polybenzazoles with rigid-rod benzoxazole cycle and soft methylene segment was designed and synthesized via solution condensation polymerizations from 4,6-diamino-1,3-benzenediol diphosphate, terephthalic acid and aliphatic dicarboxylic acid. The structures of polybenzazoles were characterized by means of FT-IR, H NMR and Wide-angle X-ray diffraction (WAXRD). All the polymers show excellent thermal stability and the s was above 471°C. The intrinsic viscosities [] of the polymers ranged from 0.8 to 0.9. The UV-Vis absorption peaks of the polymers in MSA were blue-shifted from 429 nm for PBO to 291 nm for PBOC7, and the Stokes shifts in PL spectra enlarged.

Keywords： condensation     Wide-angle     absorption     excellent     diffraction    

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Integration of renewable energies, flexible loads and storages into the German power grid: Actual situation

Harald SCHWARZ, Xiaoshu CAI

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 107-118 doi: 10.1007/s11708-017-0470-x

Abstract: Starting from the late 1990’s, the German government decided to change the national electric power supply system dramatically. The main stimulating instrument was the German Law on Renewable Energies (Erneuerbare Energien Gesetz (EEG)), which guaranteed a fixed feed-in tariff to everyone who was willing to invest into renewable generation. Based on the year of commissioning, defined revenues per kWh were fixed for the next 20 years. Due to a very attractive over-funding, more than 1.5 million renewable generation units were connected to the German grid up to the end of 2015. According to the EEG, renewable generation units can feed to the grid wherever they are located and whenever they are able to produce. The old physical principle was and is still neglected, which clearly stated that generation always has to follow the demand—simply due to the limited availability of storages in the power system. Only in cases, when temporarily renewable overproduction exceeds the tolerable loading of lines or transformers respectively endangers the system stability in total, are German grid operators allowed to announce curtailments by emergency measures. Even in such cases, the “not produced energy” from renewable sources has to be funded. Although the installed capacity from renewables is much higher than the peak load in Germany, it contributes only about 32% to German average annual energy. Unfortunately, the regional distribution of renewable generation and load is very different, e.g. in the northeast of Germany, this Renewable Energy (RE)-ratio meanwhile exceeds 100% due to the high RE-penetration and low load. High transits of renewable overproduction from the north to the south will be necessary at nearly every day per year. Therefore, a tremendous change is needed within the German power grid. This paper will give a first overview followed by several others, describing possible solutions on how to overcome this critical situation.

Keywords： grid integration     renewable energies     system stability     storages     flexible loads     new market design    

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Title Author Date Type Operation

Creation and integration mechanism of instrumentation flexible developing system

Xiaoli XU, Qiushuang LIU

Journal Article

Piezoelectric pump with flexible venous valves for active cell transmission

Journal Article

Review on flexible perovskite photodetector: processing and applications

Journal Article

A review of the scalable nano-manufacturing technology for flexible devices

Wenbin HUANG,Xingtao YU,Yanhua LIU,Wen QIAO,Linsen CHEN

Journal Article

Analytical dynamic solution of a flexible cable-suspended manipulator

Mahdi BAMDAD

Journal Article

Possible role of power-to-heat and power-to-gas as flexible loads in German medium voltage networks

Mark KUPRAT, Martin BENDIG, Klaus PFEIFFER

Journal Article

Dynamics Modeling of Spacecraft with Composite Flexible Structures

Qu Guangji,Cheng Daosheng

Journal Article

Estimation of flexible pavement structural capacity using machine learning techniques

Nader KARBALLAEEZADEH, Hosein GHASEMZADEH TEHRANI, Danial MOHAMMADZADEH SHADMEHRI, Shahaboddin SHAMSHIRBAND

Journal Article

A literature review of smart warehouse operations management

Journal Article

Design and applications of morphing aircraft and their structures

Journal Article

A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

Journal Article

Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial

P. SRINIVASA RAO,P. DINESH,G. SARAVANA ILANGO,C. NAGAMANI

Journal Article

Implementation of a flexible Major Vacation Toll-free Program for small passenger vehicles in China

Meng XU, Ziyou GAO

Journal Article

Synthesis and properties of polybenzazoles containing flexible methylene in backbone

XU Xiaohui, LIU Xiaoyun, ZHOU Chengjun, ZHUANG Qixin, HAN Zhewen

Journal Article

Integration of renewable energies, flexible loads and storages into the German power grid: Actual situation

Harald SCHWARZ, Xiaoshu CAI

Journal Article