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Best operating conditions to produce hydroxyapatite nanoparticles by means of a spinning disc reactor

A. F. D’ Intino,B. de Caprariis,M.L. Santarelli,N. Verdone,A. Chianese

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 156-160 doi: 10.1007/s11705-014-1427-9

Abstract: hydroxyapatite (Mg-HAP) nanoparticles were produced by a reaction-precipitation process by using a spinningdisc reactor (SDR) at high rotational speed.In particular, they were 51 nm in average size when the two reagents were fed over the disc symmetricallyat 3 cm from the disc center and a rotational speed of the disc reactor equal to 1400 r/min was adopted

Keywords： hydroxyapatite     nanoparticles     spinning disc reactor    

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Vibration analysis of blade-disc coupled structure of compressor

WANG Chunjie, SONG Shunguang, ZONG Xiao

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 302-305 doi: 10.1007/s11708-008-0064-8

Abstract: While a 3D assembly model of blade-disc structure was established, a finite element model for calculatingthe vibration characteristics during blade-disc coupling was built by taking into consideration thecoupling action of contact stress between the blade and the disc.The vibration characteristics of the blade-disc coupling structure was calculated and analyzed using

Keywords： blade-disc coupling     assembly     experiment     vibration     blade-disc structure    

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Wear mechanism of disc-brake block material for new type of drilling rig

WANG Xinhua, WANG Simin, ZHANG Siwei, WANG Deguo

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 10-16 doi: 10.1007/s11465-008-0009-2

Abstract: To improve friction and wear performance and service life of the disc-brake pair material of a drillingrig, a new type of asbestos-free frictional material with better performance for disc-brake blocks isAt the beginning of wear, the hard peaks from the friction surface of the disc-brake plough on the surface

Keywords： asbestos-free frictional     Fracture     cyclization     friction     disc-brake    

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Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 533-545 doi: 10.1007/s11709-023-0946-1

Abstract: The disc cutters of shield machines exhibit unsatisfactory adaptability and performance during the soft–hardTo analyze the rotation state, cutting performance, and adaptability of disc cutters during shield tunnelingAdditionally, the parameters of the models are modified based on laboratory disc cutter excavation testThe results of numerical calculation can reflect the load level and the behavior of the disc cuttersThe disc cutters in the center of the cutterhead should be specified with a lower starting torque to

Keywords： shield tunneling     disc cutter load     laboratory excavation test     numerical calculation     soft–hard varied    

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Biding strategy of vehicle parking for participating in energy and spinning reserve markets

Ali MANSOORI,Rahmat AAZAMI,Ramin SAYADI

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 403-411 doi: 10.1007/s11708-014-0333-7

Abstract: electric cars is presented to auction the management ability and correct parking planning in reserve spinning

Keywords： vehicle-to-grid (V2G)     spinning reserve     energy secondary market     smart parking    

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Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Frontiers of Structural and Civil Engineering   Pages 1370-1386 doi: 10.1007/s11709-023-0947-0

Abstract: The tunnel boring machine (TBM) is typically used in hard-rock tunnel excavation. Owing to the unsatisfactory adaptability of TBM to the surrounding rock, when crossing high-strength and high-wear strata, the TBM can easily cause defects, such as abnormal wear on cutters and overload damage to bearings, thus affecting the construction efficiency and cost. Therefore, high-pressure waterjet technology should be applied to assist in rock breaking for efficient TBM tunneling. In this study, the effects of water pressure, nozzle diameter, and nozzle speed on cutting are investigated via laboratory experiments of cutting hard rock using high-pressure waterjets. The penetration performance of the TBM under different water pressures is investigated via a field industrial penetration test. The results show that high-pressure waterjets are highly efficient for rock breaking and are suitable for industrial applications, as they can accommodate the advancing speed of the TBM and achieve high-efficiency rock breaking. However, during the operation of high-pressure waterjets, the ambient temperature and waterjet temperature in the tunnel increase significantly, which weakens the cooling effect of the cutterhead and decreases the construction efficiency of the TBM. Therefore, temperature control and cooling measures for high-pressure waterjets during their long-term operation must be identified. This study provides a useful reference for the design and construction of high-pressure water-jet-assisted cutterheads for breaking road headers.

Keywords： tunnel boring machine     hard-rock cutting     free face     disc cutter     rock-cutting efficiency    

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Real-time task processing method based on edge computing for spinning CPS

Shiyong YIN, Jinsong BAO, Jie LI, Jie ZHANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 320-331 doi: 10.1007/s11465-019-0542-1

Abstract: Spinning production is a typical continuous manufacturing process characterized by high speed and uncertainEach manufacturing unit in spinning production produces various real-time tasks, which may affect productionmethod based on edge computing can effectively solve the delay problem of real-time task processing in spinning

Keywords： edge computing     real-time task     scheduling     CPS     spinning    

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Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 351-357 doi: 10.1007/s11465-019-0528-z

Abstract: Counter-roller spinning (CRS), where the mandrel is replaced by rollers, is an effective means of manufacturing

Keywords： large-sized cylindrical part     counter-roller spinning     aluminum alloy     finite element method     distributed    

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Optimal dynamic emergency reserve activation using spinning, hydro and demand-side reserves

S. Surender REDDY,P. R. BIJWE,A. R. ABHYANKAR

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 409-423 doi: 10.1007/s11708-016-0431-9

Abstract: It considers the reserves supplied by the conventional thermal generators (spinning reserves), hydro

Keywords： reserve activation approach     hydro power units     post contingency     sequential reserve activation approach     spinning    

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Effects of inclination angles of disc cutter on machining quality of Nomex honeycomb core in ultrasonic

Yidan WANG, Renke KANG, Yan QIN, Qian MENG, Zhigang DONG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 285-297 doi: 10.1007/s11465-021-0631-9

Abstract: Ultrasonic cutting with a disc cutter is an advanced machining method for the high-quality processingHowever, in existing research, the effect of the disc cutter orientation on the machining quality hasnot been studied in depth, and practical guidance for the use of disc cutters is lacking.In this work, the inclined ultrasonic cutting process with a disc cutter was analyzed, and cutting experimentsThis study investigates the influence of the inclination angles of a disc cutter on the machining quality

Keywords： Nomex honeycomb core     disc cutter     inclined ultrasonic cutting     machining quality    

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Performance of landfill leachate treatment system with disc-tube reverse osmosis units

WANG Baozhen, LIU Shuo, LIU Yanping, LI Xiujin

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 24-31 doi: 10.1007/s11783-008-0024-x

Abstract: Reverse osmosis system with the disc-tube module (DT-RO) was applied to treat landfill leachate on full

Keywords： chemical cleaning     product     organic     nitrogen     Effective    

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Adenovirus-mediated tissue inhibitor of metalloproteinase-3 gene transfection inhibits rabbit intervertebral disc

Xudong YU MM, Zengwu SHAO MD, Liming XIONG MD, Weiwei XU MM, Hezhong WANG MM, Huifa XU MM,

Frontiers of Medicine 2009, Volume 3, Issue 4,   Pages 415-420 doi: 10.1007/s11684-009-0072-z

Abstract: carrying tissue inhibitor of metalloproteinase-3 (RAdTIMP-3) against degeneration of rabbit intervertebral discMild or moderate rabbit lumbar disc degeneration model was constructed with the controllable axial loadingSafranin O-Fast green staining and type II collagen staining demonstrated better reserved integrity of discRAdTIMP-3 can effectively protect the matrix of rabbit intervertebral disc against overloading-induceddegeneration in a dose-dependent manner, resulting in the alleviation of disc degeneration.

Keywords： tissue inhibitor of metalloproteinase-3     intervertebral disc     rabbit     gene therapy    

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Spinning from Nature: Engineered Preparation and Application of High-Performance Bio-Based Fibers Review

Zongpu Xu, Mingrui Wu, Qi Ye, Dong Chen, Kai Liu, Hao Bai

Engineering 2022, Volume 14, Issue 7,   Pages 100-112 doi: 10.1016/j.eng.2021.06.030

Abstract: The natural spinning systems that produce such fibers are highly energy efficient, inspiring researchersto mimic these processes to realize robust artificial spinning.Various bioinspired spinning methods, strengthening strategies for mechanically strong fibers, and thechallenges in reproducing the mechanical performance of natural systems and understanding their dynamic spinning

Keywords： Bio-based fiber     Hierarchical structure     Bioinspired spinning     Strengthening strategy     Fiber applications    

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Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 810-831 doi: 10.1007/s11708-021-0760-1

Abstract: The subcritical reactor is an important part of the whole CiADS project.Currently, a pool-type LBE cooled fast reactor is chosen as the subcritical reactor of the CiADS.conducted simultaneously to support the design and construction of the CiADS LBE-cooled subcritical reactorTherefore, it is necessary to introduce the efforts made in China in the LBE-cooled fast reactor to provide, and the efforts to build the LBE-cooled fast reactor are presented.

Keywords： LBE (lead bismuth eutectic) coolant reactor     China initiative Accelerator Driven System (CiADS) project    

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An old issue and a new challenge for nuclear reactor safety

F. D’AURIA

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 854-859 doi: 10.1007/s11708-021-0729-0

Abstract: Nuclear reactor safety (NRS) and the branch accident analysis (AA) constitute proven technologies: these

Keywords： large break loss of coolant accident (LBLOCA)     nuclear reactor safety (NRS)     licensing perspectives     basis    

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Title Author Date Type Operation

Best operating conditions to produce hydroxyapatite nanoparticles by means of a spinning disc reactor

A. F. D’ Intino,B. de Caprariis,M.L. Santarelli,N. Verdone,A. Chianese

Journal Article

Vibration analysis of blade-disc coupled structure of compressor

WANG Chunjie, SONG Shunguang, ZONG Xiao

Journal Article

Wear mechanism of disc-brake block material for new type of drilling rig

WANG Xinhua, WANG Simin, ZHANG Siwei, WANG Deguo

Journal Article

Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Journal Article

Biding strategy of vehicle parking for participating in energy and spinning reserve markets

Ali MANSOORI,Rahmat AAZAMI,Ramin SAYADI

Journal Article

Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Journal Article

Real-time task processing method based on edge computing for spinning CPS

Shiyong YIN, Jinsong BAO, Jie LI, Jie ZHANG

Journal Article

Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Journal Article

Optimal dynamic emergency reserve activation using spinning, hydro and demand-side reserves

S. Surender REDDY,P. R. BIJWE,A. R. ABHYANKAR

Journal Article

Effects of inclination angles of disc cutter on machining quality of Nomex honeycomb core in ultrasonic

Yidan WANG, Renke KANG, Yan QIN, Qian MENG, Zhigang DONG

Journal Article

Performance of landfill leachate treatment system with disc-tube reverse osmosis units

WANG Baozhen, LIU Shuo, LIU Yanping, LI Xiujin

Journal Article

Adenovirus-mediated tissue inhibitor of metalloproteinase-3 gene transfection inhibits rabbit intervertebral disc

Xudong YU MM, Zengwu SHAO MD, Liming XIONG MD, Weiwei XU MM, Hezhong WANG MM, Huifa XU MM,

Journal Article

Spinning from Nature: Engineered Preparation and Application of High-Performance Bio-Based Fibers

Zongpu Xu, Mingrui Wu, Qi Ye, Dong Chen, Kai Liu, Hao Bai

Journal Article

Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

Journal Article

An old issue and a new challenge for nuclear reactor safety

F. D’AURIA

Journal Article