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On the improvement design of dynamic characteristics for the roller follower of a variable-speed plate

Hui Ching FAN, Hong Sen YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1, Pages 5-15 doi: 10.1007/s11465-012-0310-y

Abstract: The design procedure to improve the kinematic and dynamic motion characteristics is presented and twodesign examples with discussions are provided.the simulations of the kinematic and dynamic models by ADAMS are carried out and verified that the design

Keywords： cam mechanism variable input speed kinematic design dynamic design optimal design

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A hybrid method for product low-end disruptive innovation

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0690-6

Abstract: Thus, they cannot easily identify and respond to the LDI design needs.This study proposes a hybrid method for the product LDI in two levels of the product design based onThe feasibility of the proposed method is verified in the design of a new dropping pill machine.

Keywords： low-end disruptive innovation product design design improvement theory of inventive problem solving

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Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Frontiers in Energy 2016, Volume 10, Issue 1, Pages 88-104 doi: 10.1007/s11708-015-0387-1

Abstract: The optimized structure strength design and finite element analysis method for very high pressure (VHPThe structure design feature, the mechanical models and the typical position of stress analysis of theThe strength design criteria and strength analysis results of the welded rotor are given.The results show that the strength design of improved structure of the VHP welded rotor of the 700°C

Keywords： 700°C ultra-super-critical unit steam turbine very high pressure rotor structure strength design strengthdesign criteria finite element analysis

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Exploring differentiated improvement strategies of cultivated land quality in China

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023523

Abstract:

● Cultivated land quality can be considered in four dimensions: suitability, contiguity, resistance, and ecological stress.

Keywords： China cultivated land quality differentiated improvement food security

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Research progress on genetic improvement of

Chuanping YANG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 4, Pages 391-401 doi: 10.15302/J-FASE-2017183

Abstract: Over the past 30 years, effective progress has been made in genetic improvement and molecular breedingAll this research has provided a model and data for the foundation of forest genetic improvement and

Keywords： Betula platyphylla genetic improvement molecular breeding seed orchard

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A review of systematic evaluation and improvement in the big data environment

Feng YANG, Manman WANG

Frontiers of Engineering Management 2020, Volume 7, Issue 1, Pages 27-46 doi: 10.1007/s42524-020-0092-6

Abstract: The purpose of this paper is to provide an overview and discussion of systematic evaluation and improvementFurthermore, we explore the systematic improvement studies and application fields.

Keywords： big data evaluation methods systematic improvement big data analytic techniques data mining

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Quality and efficiency improvement technology for five megawatt offshore wind turbines and its application

Huali HAN

Frontiers of Engineering Management 2020, Volume 7, Issue 4, Pages 618-621 doi: 10.1007/s42524-020-0142-0

Keywords： renewable energy megawatt offshore wind turbine technology-driven quality improvement

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Embryo-mediated genome editing for accelerated genetic improvement of livestock

Zachariah MCLEAN, Björn OBACK, Götz LAIBLE

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 2, Pages 148-160 doi: 10.15302/J-FASE-2019305

Abstract: Such a breeding strategy would enable a more targeted, accelerated approach for livestock improvement

Keywords： cattle cloning CRISPR/Cas9 cytoplasmic injection embryo genome editing germline chimaeras HDR livestock improvement

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Structrue innovation for quantitative transfer of viscous liquid in sample pretreatment device

Cao Guozhong,Tan Runhua,Zhang Peng,Yang Zhiyan

Strategic Study of CAE 2010, Volume 12, Issue 1, Pages 30-35

Abstract: effect in computer-aided innovation software-InventionTool3.0, the choice, evaluation and amendment of design

Keywords： TRIZ TOC pretreatment device improvement design

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Management System and Education Model in Developed Countries for Engineering Management Major Education Improvement

Jian-ya Jiang,Yang-wei Rao

Frontiers of Engineering Management 2014, Volume 1, Issue 4, Pages 406-409 doi: 10.15302/J-FEM-2014049

Abstract: Different developed countries have differences in regulations for engineering management systems. The related education modes and their curriculum arrangement in universities in the US, UK, and Germany show their specializations. Through comparative research into engineering management systems and professional education modes between China and these developed countries, the paper proposes suggestions for improving the education of engineering management majors in China, which could speed up development of Chinese engineering general contracting enterprises and engineering project management enterprises.

Keywords： engineering management system education mode comparative research training improvement

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Genetic improvement of wheat grain quality at CIMMYT

Carlos GUZMÁN, Karim AMMAR, Velu GOVINDAN, Ravi SINGH

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 3, Pages 265-272 doi: 10.15302/J-FASE-2019260

Abstract:

The International Maize and Wheat Improvement Center (CIMMYT) is the global leader in publicly-fundedWheat quality improvement is a central component of all the breeding efforts at CIMMYT and the Wheatand environmental effects on quality traits, (3) characterization of genetic resources for quality improvement

Keywords： biofortification breeding grain quality wheat

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Molecular regulation and genetic improvement of seed oil content in

Wei HUA,Jing LIU,Hanzhong WANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 3, Pages 186-194 doi: 10.15302/J-FASE-2016107

Abstract: As an important oil crop and a potential bioenergy crop, L. is becoming a model plant for basic research on seed lipid biosynthesis as well as seed oil content, which has always been the key breeding objective. In this review, we present current progress in understanding of the regulation of oil content in , including genetics, biosynthesis pathway, transcriptional regulation, maternal effects and QTL analysis. Furthermore, the history of breeding for high oil content in is summarized and the progress in breeding ultra-high oil content lines is described. Finally, prospects for breeding high oil content cultivars are outlined.

Keywords： breeding maternal effects oilseed rape QTL

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Air quality improvement in Los Angeles—Perspectives for developing cities

David D. Parrish,Jin Xu,Bart Croes,Min Shao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0859-5

Abstract: Air quality improvement in Los Angeles can inform air quality policies in developing cities.Opportunities for co-benefits for climate and air quality improvement are identified.Air quality improvement in Los Angeles, California is reviewed with an emphasis on aspects that may informcontrasted with those of Los Angeles, and the opportunities for co-benefits for climate and air quality improvement

Keywords： Air pollution Ozone Particulate matter Control technology

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FOR USE IN AGROECOSYSTEM IMPROVEMENT IN SEMI-ARID AREAS WITH A FOCUS ON CENTRAL ANATOLIA, TURKEY

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4, Pages 568-582 doi: 10.15302/J-FASE -2019270

Abstract: i> and Casuarina have been evaluated for their potential use in agroecosystem improvement

Keywords： actinorrhizal trees / agroforestry / climate change / ecosystem restoration

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Ductility improvement of GFRP-RC beams using precast confined concrete block in compression zone

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0968-8

Abstract: Fiber-reinforced polymers (FRPs) have received considerable research attention because of their high strength, corrosion resistance, and low weight. However, owing to the lack of ductility in this material and the quasi-brittle behavior of concrete, FRP-reinforced concrete (FRP-RC) beams, even with flexural failure, do not fail in a ductile manner. Because the limited deformation capacity of FRP-RC beams depends on the ductility of their compression zones, the present study proposes using a precast confined concrete block (PCCB) in the compression zone to improve the ductility of the beams. A control beam and four beams with different PCCBs were cast and tested under four-point bending conditions. The control beam failed due to shear, and the PCCBs exhibited different confinements and perforations. The goal was to find an appropriate PCCB for use in the compression zone of the beams, which not only improved the ductility but also changed the failure mode of the beams from shear to flexural. Among the employed blocks, a ductile PCCB with low equivalent compressive strength increased the ductility ratio of the beam to twice that of the control beam. The beam failed in pure flexure with considerable deformation capacity and without significant stiffness reduction.

Keywords： ductility four-point bending test glass fiber-reinforced polymer precast confined concrete block