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Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 268-278 doi: 10.1007/s11465-012-0331-6

Abstract:

This paper deals with the contact stress, power loss, and pitting of spur gear tooth in altered tooth-sumgearing for a tooth-sum of 100 teeth when altered by±4% tooth-sum.Analytical and experimental methods were performed to investigate and compare the altered tooth-sum gearingagainst the standard tooth-sum gearing.The negative alteration in the tooth-sum performed better than the positive alteration in a tooth-sum

Keywords： spur gear     power recirculating test rig     altered tooth-sum gearing     scanning electron microscopy (SEM)    

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Numerically investigating the crushing of sandstone by a tooth hob

Frontiers of Structural and Civil Engineering   Pages 964-979 doi: 10.1007/s11709-023-0978-6

Abstract: To investigate the mechanical process that occurs between rocks and tooth hobs, the crushing of sandstonewith a tooth hob was simulated using reconstructed multi-mineral mesoscopic numerical models of variousWhen a piece of sandstone is crushed by the tooth of a hob rolling at a constant speed, the resultantreaction forces of the sandstone on the tooth first hinder and then contribute to the rolling of theBecause the tooth was subjected to reaction forces from the sandstone, forces and moments were applied

Keywords： sandstone     tooth hob     crushing process     reaction force     numerical simulation    

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Coordinated shift control of nonsynchronizer transmission for electric vehicles based on dynamic tooth

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 887-900 doi: 10.1007/s11465-021-0653-3

Abstract: swiftness of gear shifting, this paper proposes a coordinated shift control method based on the dynamic toothspeed synchronization, angle synchronization is adopted to synchronize the SL quickly to the target tooth

Keywords： nonsynchronizer automated mechanical transmission (NSAMT)     planetary gear     coordinated shift control     dynamic tooth    

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Distributed optimization based on improved push-sum framework for optimization problem with multiple

徐谦,俞楚天,袁翔,韦梦立,刘洪喆

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 9,   Pages 1253-1260 doi: 10.1631/FITEE.2200596

Abstract: To this end, with the push-sum framework improved, the distributed optimization algorithm is newly designed

Keywords： Distributed optimization     Nonidentical constraints     Improved push-sum framework    

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Russian school of the theory and geometry of gearing: Its origin and golden period (1935 --1975)

Dmitry BABICHEV,Sergey LAGUTIN,Natalya BARMINA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 44-59 doi: 10.1007/s11465-015-0360-z

Abstract: the twentieth century, Soviet scientists were among the world leaders in the theory and geometry of gearingThe authors of the current paper review works related to the development of the theory of gearing (TG

Keywords： theory of gearing (TG)     gear geometry     generating surface     gear synthesis     gear analysis    

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An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 511-518 doi: 10.1631/FITEE.1400269

Abstract: In this paper, an improved low-complexity sum-product decoding algorithm is presented for low-densityMoreover, when compared with the sum-product algorithm (SPA), the proposed decoding algorithm can achieve

Keywords： Computational complexity     Coding gain     Fast Fourier transform (FFT)     Low-density parity-check (LDPC) codes     Sum-product    

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Intestinal Epithelial Axin1 Deficiency Protects Against Colitis via Altered Gut Microbiota

Shari Garrett,Yongguo Zhang,Yinglin Xia,Jun Sun,

Engineering doi: 10.1016/j.eng.2023.06.007

Abstract: Axin1ΔIEC mice exhibited altered goblet cell spatial distribution, PC

Keywords： Axin1     Bacteria     Microbiome inflammation     Inflammatory bowel disease     Immunity     Microbiome     Paneth cells     Akkermansia muciniphila     Wnt    

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A microarray study of altered gene expression during melanoblasts migration in normal pigmented White

Yulin LI,Deping HAN,Junying LI,Dawn KOLTES,Xuemei DENG

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 4,   Pages 299-306 doi: 10.15302/J-FASE-2014040

Abstract: The genes with significantly altered expression involved in melanoblast migration and development suggested

Keywords： Silky Fowl     White Leghorn     melanoblast migration     gene expression    

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CRISPR Narrows Gap between Genetically Altered Foods and Consumers

Sarah C.P. Williams

Engineering 2023, Volume 20, Issue 1,   Pages 6-8 doi: 10.1016/j.eng.2022.11.002

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Development of Vibration Control Technologies for Marine Power and Gearing Systems

Xie Xiling , Dong Guangming , Lin Feng , Zhang Zhiyi , Wen Xueyou

Strategic Study of CAE 2022, Volume 24, Issue 6,   Pages 193-202 doi: 10.15302/J-SSCAE-2022.06.018

Abstract:

The vibration waves induced by marine power and gearing systems traveltheoretical research and engineering application of the vibration control technologies for marine power and gearingThe challenges of vibration control technologies for marine power and gearing systems are analyzed subsequentlyTo promote the vibration control technologies for marine power and gearing systems in China, research

Keywords： power and gearing systems     vibration and sound radiation     low-noise propulsion     vibration control    

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Primary cilia in hard tissue development and diseases

Frontiers of Medicine 2021, Volume 15, Issue 5,   Pages 657-678 doi: 10.1007/s11684-021-0829-6

Abstract: Bone and teeth are hard tissues. Hard tissue diseases have a serious effect on human survival and quality of life. Primary cilia are protrusions on the surfaces of cells. As antennas, they are distributed on the membrane surfaces of almost all mammalian cell types and participate in the development of organs and the maintenance of homeostasis. Mutations in cilium-related genes result in a variety of developmental and even lethal diseases. Patients with multiple ciliary gene mutations present overt changes in the skeletal system, suggesting that primary cilia are involved in hard tissue development and reconstruction. Furthermore, primary cilia act as sensors of external stimuli and regulate bone homeostasis. Specifically, substances are trafficked through primary cilia by intraflagellar transport, which affects key signaling pathways during hard tissue development. In this review, we summarize the roles of primary cilia in long bone development and remodeling from two perspectives: primary cilia signaling and sensory mechanisms. In addition, the cilium-related diseases of hard tissue and the manifestations of mutant cilia in the skeleton and teeth are described. We believe that all the findings will help with the intervention and treatment of related hard tissue genetic diseases.

Keywords： primary cilia     bone     mechanical sensing     hard tissue     cilium-related bone disease     tooth    

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An investigation into the vibration of harmonic drive systems

M. Masoumi, H. Alimohammadi

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 409-419 doi: 10.1007/s11465-013-0275-5

Abstract: study the effects of different involved parameters such as the geometry of the flexspline and its gear tooth

Keywords： harmonic drive system     strain wave gearing mechanism     vibration analysis     natural frequencies    

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An array of two periodic leaky-wave antennas with sum and difference beam scanning for application in Research Article

Mianfeng HUANG, Juhua LIU,liujh33@mail.sysu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 4,   Pages 567-581 doi: 10.1631/FITEE.2200473

Abstract: the two LWAs, two beams with two different directions can be realized, which can be combined into a sumMeasurement results show that the sum beam can reach a gain up to 15.9 dBi and scan from -33.4° to 20.8scanning range, the direction of the null in the difference beam is consistent with the direction of the sum

Keywords： Antenna     Leaky-wave antenna (LWA)     Substrate-integrated waveguide (SIW)     Sum and difference beam     Target    

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Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management

Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath

Frontiers of Medicine 2010, Volume 4, Issue 2,   Pages 147-156 doi: 10.1007/s11684-010-0030-9

Abstract: The pandemic H1N1 2009 influenza virus has caused the first influenza pandemic of the 21st century, leading to disproportionate fatalities in the low-risk population despite the generally mild nature of the illness. Advances in sci

Keywords： influenza A virus     H1N1 subtype     pandemic     pathogenesis     virulence factors     immunity     management     antiviral    

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Mathematical model and manufacture programming of loxodromic-type normal circular-arc spiral bevel gear

Zhenyun DUAN, Houjun CHEN, Zhilan JU, Jian LIU

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 312-321 doi: 10.1007/s11465-012-0308-5

Abstract: loxodromic-type normal circular-arc spiral bevel gear is proposed as a novel application of the circular-arc toothBased on the principle of molding-surface conjugation, the study develops a mathematical model for the toothalignment curve and the computational flow at the design stage to enable the generation of the toothMachining of the tooth surface is then carried out to determine the interference-free tool path of the

Keywords： loxodrome     circular-arc tooth profile     Wildhaber-Novikov (W-N) gear     spiral bevel gear    

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Title Author Date Type Operation

Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Journal Article

Numerically investigating the crushing of sandstone by a tooth hob

Journal Article

Coordinated shift control of nonsynchronizer transmission for electric vehicles based on dynamic tooth

Journal Article

Distributed optimization based on improved push-sum framework for optimization problem with multiple

徐谦,俞楚天,袁翔,韦梦立,刘洪喆

Journal Article

Russian school of the theory and geometry of gearing: Its origin and golden period (1935 --1975)

Dmitry BABICHEV,Sergey LAGUTIN,Natalya BARMINA

Journal Article

An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Journal Article

Intestinal Epithelial Axin1 Deficiency Protects Against Colitis via Altered Gut Microbiota

Shari Garrett,Yongguo Zhang,Yinglin Xia,Jun Sun,

Journal Article

A microarray study of altered gene expression during melanoblasts migration in normal pigmented White

Yulin LI,Deping HAN,Junying LI,Dawn KOLTES,Xuemei DENG

Journal Article

CRISPR Narrows Gap between Genetically Altered Foods and Consumers

Sarah C.P. Williams

Journal Article

Development of Vibration Control Technologies for Marine Power and Gearing Systems

Xie Xiling , Dong Guangming , Lin Feng , Zhang Zhiyi , Wen Xueyou

Journal Article

Primary cilia in hard tissue development and diseases

Journal Article

An investigation into the vibration of harmonic drive systems

M. Masoumi, H. Alimohammadi

Journal Article

An array of two periodic leaky-wave antennas with sum and difference beam scanning for application in

Mianfeng HUANG, Juhua LIU,liujh33@mail.sysu.edu.cn

Journal Article

Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management

Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath

Journal Article

Mathematical model and manufacture programming of loxodromic-type normal circular-arc spiral bevel gear

Zhenyun DUAN, Houjun CHEN, Zhilan JU, Jian LIU

Journal Article