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Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0737-8

Abstract: The build orientation is crucial in AM because it affects the as-built part, including its part accuracy, surface roughness, support structure, and build time and cost.This study proposes a method to determine the build orientation of multi-feature mechanical parts (MFMPsorientation from those ABOs.measured average sampling surface roughness of the most crucial feature of the bracket in the original orientation

Keywords： selective laser melting (SLM)     build orientation determination     multi-feature mechanical part (MFMP)    

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Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing based on triangular fuzzy number

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 133-150 doi: 10.1007/s11465-020-0610-6

Abstract: Second, the optimal AM part build orientation is determined using the genetic algorithm to optimize theLastly, an improved adaptive slicing algorithm is utilized to reduce the entire build time while maintaining

Keywords： surface accuracy optimization     multiple circular holes     additive manufacturing (AM)     part build orientation    

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INTERCROPPING: FEED MORE PEOPLE AND BUILD MORE SUSTAINABLE AGROECOSYSTEMS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 373-386 doi: 10.15302/J-FASE -2021398

Abstract:

Intercropping is a traditional farming system that increases crop diversity to strengthen agroecosystem functions while decreasing chemical inputs and minimizing negative environmental effects of crop production. Intercropping is currently considerable interest because of its importance in sustainable agriculture. Here, we synthesize the factors that make intercropping a sustainable means of food production by integrating biodiversity of natural ecosystems and crop diversity. In addition to well-known yield increases, intercropping can also increase yield stability over the long term and increase systemic resistance to plant diseases, pests and other unfavorable factors (e.g. nutrient deficiencies). The efficient use of resources can save mineral fertilizer inputs, reduce environmental pollution risks and greenhouse gas emissions caused by agriculture, thus mitigating global climate change. Intercropping potentially increases above- and below-ground biodiversity of various taxa at field scale, consequently it enhances ecosystem services. Complementarity and selection effects allow a better understanding the mechanisms behind enhanced ecosystem functioning. The development of mechanization is essential for large-scale application of intercropping. Agroecosystem multifunctionality and soil health should be priority topics in future research on intercropping.

 

Keywords： agroecosystems ， crop diversity ，intercropping，interspecific interactions，sustainable agriculture    

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Utilizing big data to build personalized technology and system of diagnosis and treatment in traditional

Baoyan Liu

Frontiers of Medicine 2014, Volume 8, Issue 3,   Pages 272-278 doi: 10.1007/s11684-014-0364-9

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Build a Bridge between Science and Economy

Hans-Jurgen Warnecke

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 16-17

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Numerical investigation of the influence of casting techniques on fiber orientation distribution in ECC

Chung Nguyen VAN; Hai TRAN THANH; Thuc Nhu NGUYEN; Jianchun LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1424-1435 doi: 10.1007/s11709-022-0870-9

Abstract: The orientation of fibers, in this regard, is one of the major factors influencing the ductile behaviorIn this study, fiber orientation distributions in ECC beams influenced by different casting techniquesThe simulation results show a significant impact of the casting direction on fiber orientation distributionsIn addition, casting positions show negligible influences on the orientation distribution of fibers in

Keywords： ECC     fiber orientation distribution     casting direction     casting position    

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Crystallographic orientation effect on cutting-based single atomic layer removal

Wenkun XIE, Fengzhou FANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 631-644 doi: 10.1007/s11465-020-0599-x

Abstract: In the present study, the crystallographic orientation effect on the cutting-based single atomic layer

Keywords： ACSM     single atomic layer removal mechanism     crystallographic orientation effect     mechanical cutting     Manufacturing    

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Tomographic diagnosis of defects in hydraulic concrete structure

ZHAO Mingjie, XU Xibin

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 226-232 doi: 10.1007/s11709-008-0027-5

Abstract: The influences of water, scale and orientation of defect, processing methods and theoretical model onDefects with the orientation perpendicular to the direction of the diagnosis may have higher precision

Keywords： satisfactory     processing     orientation     tomographic diagnosis     orientation perpendicular    

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Progress in studies of sex determination mechanisms and sex control techniques in

Qian ZHOU,Songlin CHEN

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 2,   Pages 113-123 doi: 10.15302/J-FASE-2016093

Abstract: It has a female heterogametic sex determination system (ZW/ZZ) and environmental factors can induce sex-reversalof females to phenotypic males, suggesting that it is a promising model for the study of sex determinationThis paper reviews the progress in research on sex determination mechanisms research in our laboratoryThese research advances have provided insight into the regulation of sex determination and enabled efficient

Keywords： Cynoglossus semilaevis     sex determination     sex control technique    

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Planar jumping with stable landing through foot orientation design and ankle joint control

Qilong YUAN, I-Ming CHEN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 100-108 doi: 10.1007/s11465-012-0318-3

Abstract:

This paper introduces a method to generate the planar jumping motion for biped robot. In this work, through determining the upper body posture trajectory in the flight phase, the foot landing posture is made to be flat while landing. Together with properly designing the trajectory for local center of gravity and the foot landing velocity, the soft landing trajectory is generated. A controller on the ankle joint is added to avoid significant impact with the ground and stabilize the robot after landing. Jumping motion with stable landing is achieved in a dynamic simulation environment based on this method.

Keywords： biped jumping     stable landing control     jumping motion generation    

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The build up of teams of professionals is the most urgent task for engineering management in China

Zhang Shourong

Strategic Study of CAE 2008, Volume 10, Issue 12,   Pages 36-38

Abstract: After reviewing the current situation of engineering management in China, the author realized that the buildprofessionals is the most urgent task for engineering management in China, and specific suggestions for build

Keywords： engineering management     build up of teams of professionals     up grading    

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Rapid method for on-site determination of phenolic contaminants in water using a disposable biosensor

Yuanting LI, Dawei LI, Wei SONG, Meng LI, Jie ZOU, Yitao LONG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 831-838 doi: 10.1007/s11783-012-0393-z

Abstract: The prepared biosensor was applied to the rapid determination of phenolic contaminants within 15 minutesAs an example, the biosensor for catechol determination displayed a linear range of 8.0 × 10 to 2.0

Keywords： on-site determination     tyrosinase biosensor     phenolic contaminants     single-walled carbon nanotubes     gold    

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Winner determination problem with loss-averse buyers in reverse auctions

Xiaohu QIAN, Min HUANG, Yangyang YU, Xingwei WANG

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 212-220 doi: 10.15302/J-FEM-2017019

Abstract: This paper considers a novel winner determination problem in a multiple-object reverse auction in whichA corresponding winner determination model based on cumulative prospect theory is proposed.

Keywords： reverse auction     loss aversion     winner determination     improved ant colony algorithm    

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Comments on “Determination of heterozygosity for avirulence/virulence loci through sexual hybridization

Ralf T. Voegele

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1,   Pages 121-122 doi: 10.15302/J-FASE-2017142

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Experimental determination of Cd

Farhah Amalya ISMAIL, Ahmad Zaharin ARIS

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 356-364 doi: 10.1007/s11783-013-0488-1

Abstract: Carbonate shells have an astonishing ability in the removal of Cd in a short time period with emphasis on being a low cost adsorbent. In the present study, the sorption capacity of carbonate shells was studied for Cd in batch experiments. The influence of different carbonate shell sizes and physico-chemical factors were evaluated and the results were analyzed for its correlation matrices by using Predictive Analytics Software (PASW). The mineralogy state of aqueous solution regarding the saturation index was simulated using PHREEQC to identify the Cd uptake mechanism. The Cd uptake rates were calculated as well as Ca , concentration, pH, ambient humidity and temperature were measured. Cd removal of 91.52% was achieved after 5 h adsorption. The adsorption efficiencies were significantly influenced by pH as they increased with the increase of pH from acidic solution (5.50±0.02) to slightly alkaline (7.60±0.05). In addition, the mineralogy state of aqueous solution calculated from PHREEQC confirmed that the increment of Ca and concentrations in solution was attributed to the dissolution of carbonate shells. Moreover, the ion exchange adsorption mechanism of Cd toward Ca was identified as the process involved in Cd uptake.

Keywords： carbonate shell     cadmium     heavy metal     adsorption mechanism     saturation state    

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Title Author Date Type Operation

Build orientation determination of multi-feature mechanical parts in selective laser melting via multi-objective

Journal Article

Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing based on triangular fuzzy number

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Journal Article

INTERCROPPING: FEED MORE PEOPLE AND BUILD MORE SUSTAINABLE AGROECOSYSTEMS

Journal Article

Utilizing big data to build personalized technology and system of diagnosis and treatment in traditional

Baoyan Liu

Journal Article

Build a Bridge between Science and Economy

Hans-Jurgen Warnecke

Journal Article

Numerical investigation of the influence of casting techniques on fiber orientation distribution in ECC

Chung Nguyen VAN; Hai TRAN THANH; Thuc Nhu NGUYEN; Jianchun LI

Journal Article

Crystallographic orientation effect on cutting-based single atomic layer removal

Wenkun XIE, Fengzhou FANG

Journal Article

Tomographic diagnosis of defects in hydraulic concrete structure

ZHAO Mingjie, XU Xibin

Journal Article

Progress in studies of sex determination mechanisms and sex control techniques in

Qian ZHOU,Songlin CHEN

Journal Article

Planar jumping with stable landing through foot orientation design and ankle joint control

Qilong YUAN, I-Ming CHEN

Journal Article

The build up of teams of professionals is the most urgent task for engineering management in China

Zhang Shourong

Journal Article

Rapid method for on-site determination of phenolic contaminants in water using a disposable biosensor

Yuanting LI, Dawei LI, Wei SONG, Meng LI, Jie ZOU, Yitao LONG

Journal Article

Winner determination problem with loss-averse buyers in reverse auctions

Xiaohu QIAN, Min HUANG, Yangyang YU, Xingwei WANG

Journal Article

Comments on “Determination of heterozygosity for avirulence/virulence loci through sexual hybridization

Ralf T. Voegele

Journal Article

Experimental determination of Cd

Farhah Amalya ISMAIL, Ahmad Zaharin ARIS

Journal Article