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Development Trends in Additive Manufacturing and 3D Printing Perspective

Bingheng Lu, Dichen Li, Xiaoyong Tian

Engineering 2015, Volume 1, Issue 1, Pages 85-89 doi: 10.15302/J-ENG-2015012

Abstract: technology makes its impact on traditional industry unpredictable. 3D printing will propel the revolution of fabricationmodes forward, and bring in a new era for customized fabrication by realizing the five "any"Innovations in material, design, and fabrication processes will be inspired by the merging of 3D-printing

Keywords： additive manufacturing 3D printing fabrication modes customized fabrication innovative design

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The impact of different voltage application modes on biodegradation of chloramphenicol and shift of microbial

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1576-x

Abstract:

● Presented coupled system enhanced biodegradation of antibiotic chloramphenicol.

Keywords： Electrical stimulation Biodegradation Microbial community Chloramphenicol

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Experimental analysis on strength and failure modes of wood beam-column connections

Zhenhua HUANG,Sheldon Q SHI,Liping CAI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3, Pages 260-269 doi: 10.1007/s11709-014-0261-y

Abstract: This research experimentally examined the strength, failure modes, and behaviors of dowel-bearing andfiber-bearing wood beam-column connections and explored the effects of cyclic loading on the strength, failure modes

Keywords： wood connection dowel-bearing fiber-bearing

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Mesoscale fabrication of a complex surface for integral impeller blades

Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1, Pages 116-131 doi: 10.1007/s11465-017-0426-1

Abstract: For the fabrication of a complex integral impeller, a micro-ball-end mill is designed in accordance with

Keywords： mesoscale fabrication micro-milling tool mesoscale milling impeller blade

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Optimization for operating modes based on simulation of seasonal underground thermal energy storage

ZHAO Jun, CHEN Yan, LI Xinguo

Frontiers in Energy 2008, Volume 2, Issue 3, Pages 298-301 doi: 10.1007/s11708-008-0053-y

Abstract: A simulation study was performed to study the influence of system operation modes on thermal recoveryindicate a thermal recovery ratio of less than 67% and different temperature distributions under three modes

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Multi-scale investigation of active failure for various modes of wall movement

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 961-979 doi: 10.1007/s11709-021-0738-4

Abstract: Hence, various modes of wall movement (translation and rotation) toward the active state are modeledon pressure distribution and deformation mechanisms are discussed with reference to the associated modes

Keywords： discrete-element modelling granular materials retaining walls particle shape arching

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Bi-modes alternation stepping ultrasonic motors

JIN Jiamei, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1, Pages 101-105 doi: 10.1007/s11465-008-0018-1

Abstract: Based on the principle of alternative operation of two bending vibration modes in an annular stator,The driving forces are generated from the motions of projections on the stator in two modes.

Keywords： miss-step bi-direction Two-phase sinusoidal positioning accumulative

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Improvement to observability measures of LFO modes in power systems with DFIGs

Shenghu LI

Frontiers in Energy 2021, Volume 15, Issue 2, Pages 539-549 doi: 10.1007/s11708-019-0617-z

Abstract: Observation of the low-frequency oscillation (LFO) modes in power systems is important to design theequations of the power system with the doubly-fed induction generators (DFIGs) are derived to find the LFO modesthe observability measure is improved to consider the initial output and the attenuation speed of the modesThe numerical results from the small and large-disturbance validate the LFO modes caused by the DFIGs

Keywords： wind power system low-frequency oscillation (LFO) observability measure sensitivity doubly-fed induction generator (DFIG)

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Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods

Zheng-Dong MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3, Pages 442-459 doi: 10.1007/s11465-018-0488-8

Abstract: The characteristic modes and the stress recovery process used to predict the stress distribution inside

Keywords： architectured material cellular materials multi-scale modeling homogenization method effective material properties computational method

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A multi-probe micro-fabrication apparatus based on the friction-induced fabrication method

Zhijiang WU, Chenfei SONG, Jian GUO, Bingjun YU, Linmao QIAN

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 333-339 doi: 10.1007/s11465-013-0276-4

Abstract:

A novel multi-probe micro-fabrication apparatus was developed based on the friction-induced fabricationWith a motorized linear stage, the maximum fabrication area of 50 mm × 50 mm can be achieved, andThe cantilever was designed as a structure of deformable parallelogram with two beams, by which the fabricationAs a low-cost and high efficiency fabrication device, the multi-probe micro-fabrication apparatus mayencourage the development of friction-induced fabrication method and shed new light on the texture engineering

Keywords： friction-induced fabrication silicon surface texture friction multi-probe

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Performance of completely autotrophic nitrogen removal over nitrite process under different aeration modes

GUO Jinsong, YANG Guohong, FANG Fang, QIN Yu

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4, Pages 439-445 doi: 10.1007/s11783-008-0046-4

Abstract: performance of completely autotrophic nitrogen removal over nitrite (CANON) process under different aeration modes

Keywords： Synthetic wastewater process Whereas biofilm detection

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Performance monitoring of non-gaussian chemical processes with modes-switching using globality-locality

Xin Peng, Yang Tang, Wenli Du, Feng Qian

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3, Pages 429-439 doi: 10.1007/s11705-017-1675-6

Abstract: In this paper, we propose a novel performance monitoring and fault detection method, which is based on modified structure analysis and globality and locality preserving (MSAGL) projection, for non-Gaussian processes with multiple operation conditions. By using locality preserving projection to analyze the embedding geometrical manifold and extracting the non-Gaussian features by independent component analysis, MSAGL preserves both the global and local structures of the data simultaneously. Furthermore, the tradeoff parameter of MSAGL is tuned adaptively in order to find the projection direction optimal for revealing the hidden structural information. The validity and effectiveness of this approach are illustrated by applying the proposed technique to the Tennessee Eastman process simulation under multiple operation conditions. The results demonstrate the advantages of the proposed method over conventional eigendecomposition-based monitoring methods.

Keywords： non-Gaussian processes subspace projection independent component analysis locality preserving projection finite mixture model

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Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1, Pages 3-17 doi: 10.1007/s11465-017-0408-3

Abstract:

It is costly and time consuming to use machining processes, such as grinding, polishing and lapping, to produce optical glass lenses with complex features. Precision glass molding (PGM) has thus been developed to realize an efficient manufacture of such optical components in a single step. However, PGM faces various technical challenges. For example, a PGM process must be carried out within the super-cooled region of optical glass above its glass transition temperature, in which the material has an unstable non-equilibrium structure. Within a narrow window of allowable temperature variation, the glass viscosity can change from 10⁵ to 10¹² Pa·s due to the kinetic fragility of the super-cooled liquid. This makes a PGM process sensitive to its molding temperature. In addition, because of the structural relaxation in this temperature window, the atomic structure that governs the material properties is strongly dependent on time and thermal history. Such complexity often leads to residual stresses and shape distortion in a lens molded, causing unexpected changes in density and refractive index. This review will discuss some of the central issues in PGM processes and provide a method based on a manufacturing chain consideration from mold material selection, property and deformation characterization of optical glass to process optimization. The realization of such optimization is a necessary step for the Industry 4.0 of PGM.

Keywords： precision glass molding optical lens constitutive modeling optimization manufacturing chain Industry 4.0

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Future Modes of Fuel Bioethanol Industry

Wang Meng, Tian Xiaojun, Chen Biqiang, Lin Hailong, Yue Guojun

Strategic Study of CAE 2020, Volume 22, Issue 2, Pages 47-54 doi: 10.15302/J-SSCAE-2020.02.007

Abstract: analyzes the status and problems of the fuel bioethanol industry, and proposes the general idea for future modesbetween industry, universities, and research institutions should be strengthened to innovate production modes

Keywords： fuel bioethanol intelligent production safety production future modes

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Atomistic characterization of binding modes and affinity of peptide inhibitors to amyloid-

Fufeng LIU,Wenjie DU,Yan SUN,Jie ZHENG,Xiaoyan DONG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 4, Pages 433-444 doi: 10.1007/s11705-014-1454-6

Abstract: However, atomic details of binding modes and binding affinities between these peptide inhibitors andMM/PBSA analysis further revealed that different peptide inhibitors have different modes of interaction

Keywords： Alzheimer’s disease amyloid β-protein peptide inhibitors protein-protein interaction molecular dynamics simulation