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| 1 | Four-axis trochoidal toolpath planning for rough milling of aero-engine blisks显示文摘The Blade Integrated Disk(Blisk) is one of the key components in the aero-engine, it is generally manufactured by the multi-axis milling and almost 90% raw materials are removed. To avoid the full immersion of a cutter in the rough machining of a blisk channel, the trochoidal milling is a promising strategy since it can keep a small immersion angle in the rough milling process while maintaining the high machining efficiency. However, while toolpaths are being planned for the trochoidal milling process, the conventional methods are mainly for the planar machining area with fixed tool orientations, which cannot be used for complex channels where the multi-axis machining should be employed. To this end, this paper presents a four-axis trochoidal toolpath planning method with a ball-end cutter, and thus the blisk channel can be machined efficiently.For this to happen, the trochoidal paths are planned in the parametric domain and then mapped into the physical domain, with tool orientations controlled by the quaternion interpolation method to have smooth tool movement along the toolpaths. Both geometric simulation and physical milling experiments of the proposed method have convincingly demonstrated the validation of the proposed method. | Ming LUO Ce HAH Hafiz M.HAFEEZ | 2019 | Chinese Journal of Aeronautics2019，32，8： | 9 |
| 2 | Effect of Hydrostatic Pressure on LPSO Kinking and Microstructure Evolution of Mg–11Gd–4Y–2Zn–0.5Zr Alloy显示文摘Two different kinds of hot compressions,namely normal-compression and can-compression,were performed on the Mg–11 Gd–4 Y–2 Zn–0.5 Zr alloy,featured with long period stacking ordered(LPSO)phase.The kinking behavior of LPSO phase and microstructure evolution was investigated to clarify the effect of levels of imposed hydrostatic pressure.The results suggest that the LPSO phases including both the intragranular 14 H-LPSO phase and intergranular 18 R-LPSO phase suffer severe kinking behavior under higher hydrostatic pressure induced by can-compression,which is firstly characterized with more kinking times and smaller relative kinking width.The main reason for such enhanced LPSO kinking during cancompression may be mainly ascribed to the higher dislocation density under a higher level of hydrostatic pressure.Meanwhile,a competitive relationship between the kink behaviors of intergranular 18 R-LPSO phase and intragranular 14 H-LPSO phase was observed.That is,the intergranular 18 R-LPSO phase only kinks obviously on the condition that the surrounded intragranular 14 H-LPSO phase scarcely kinks.In contrast to the distinctive kinking of LPSO phase,the dynamic recrystallization(DRX)mechanism shows less dependence on the hydrostatic pressure.Resultantly,similar DRX fractions and crystallographic texture were attained for two compression processes owing to the similar operation of deformation mode. | Ce Zheng Shuai-Feng Chen Rui-Xue Wang Shi-Hong Zhang Ming Cheng | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，2： | 2 |
| 3 | Texture modification and mechanical properties of AZ31 magnesium alloy sheet subjected to equal channel angular bending显示文摘Analysis of the recently proposed equal channel angular bending(ECAB)process is provided on thin hotrolled AZ31 magnesium alloy sheets.In particular,effects of deformation temperature and strain path on the texture evolution and mechanical properties are systematically investigated under single pass ECAB at various temperatures and multi-pass ECAB process that involves changes in strain paths.It is found that simultaneous activation of multiple twinning types is successfully introduced during ECAB,which results in obvious tilted component of basal texture.Attributed to the domination of extension twins,weaker basal textures are detected after both single pass ECAB at 150℃and three cross passes ECAB at 200℃.After annealing,the basal texture is further weakened via twin-related recrystallization and the annealed microstructure is featured with mixture of basal and non-basal orientated grains.Additionally,the effect of grain orientation on the mode of plastic deformation and the roles of grain orientation and grain boundary on the local strain accommodation are coherently studied.This study reveals that over 60%increase of uniform elongation with marginal reduction of tensile strength less than 5%can be achieved for single pass ECAB at 150℃and three cross passes ECAB at 200℃,which is the result of larger fraction of grains favored with extension twinning and better local strain accommodation. | Shuai-Feng Chen Hong-Wu Song Ming Cheng Ce Zheng Shi-Hong Zhang Myoung-Gyu Lee | 2021 | Journal of Materials Science & Technology2021，，8： | 2 |
| 4 | Colloidal crystals self-assembled on the end face of fiber:fabrication and characterizations显示文摘 | Yan Haitao Wang Ming Ce Yixian | 2009 | Optical Fiber Technology2009，，15： | 1 |
| 5 | Peroxisome proliferator?activated receptor-gamma agonist rosiglitazone reverses the adverse effects of diet-induced obesity on oocyte quality显示文摘 | Minge CE Bennett BD Norman RJ | 2008 | Endocrinology2008，149，5： | 1 |
| 6 | Controlling dynamic recrystallization via modified LPSO phase morphology and distribution in Mg-Gd-Y-Zn-Zr alloy显示文摘Featured initial microstructures of Mg-11Gd-4Y-2Zn-0.5Zr alloy(wt%) were obtained by adjusting temperatures of solid solution and cooling methods, including island intergranular 18R and 14H LPSO phases with low-density stacking faults, differentially spaced lamellar intragranular 14H-LPSO phases, and network intergranular 18R-LPSO phases with high-density intragranular stacking faults. Effects of these featured LPSO phases and stacking faults on dynamic recrystallization(DRX) behavior were investigated via hot compression. Promoted DRX behavior via particle stimulated nucleation(PSN) is introduced by coexisting intergranular island 18R and 14H LPSO phases and intragranular wide spacing lamellar 14H-LPSO phases, contributing the highest DRX fraction of 42.6%. Conversely, it is found that DRX behavior with network intergranular 18R-LPSO phases and dense intragranular stacking fault is considerably inhibited with the lowest fraction of 22.8%. That is, the restricted DRX due to dislocations pinning by stacking faults overwhelms the enhanced DRX behavior via PSN of island intergranular 18R and 14H LPSO phases. Specially, compared with dense intragranular lamellar 14H-LPSO phases, high-density stacking faults exert a larger inhibition effect on DRX behavior. | Ce Zheng Shuaifeng Chen Ming Cheng Shihong Zhang Yingju Li Yuansheng Yang | 2023 | Journal of Magnesium and Alloys2023，11，11： | 1 |
| 7 | Modeling the Dynamic Recrystallization of Mg–11Gd–4Y–2Zn–0.4Zr Alloy Considering Non-uniform Deformation and LPSO Kinking During Hot Compression显示文摘Hot compression tests of Mg–11 Gd–4 Y–2 Zn–0.4 Zr alloy(GWZK114)were conducted at a deformation temperature range of 300–500°C and a strain rate range of 0.01–10.0 s-1.Based on systematic microstructure observation,it is confirmed that long period stacking ordered(LPSO)phase displays essential and evolving roles on the dynamic recrystallization(DRX)behavior.The results indicate that the plastic deformation is mainly coordinated by simultaneous exist of LPSO kinking of lamella 14 H-LPSO phase and DRX at 350–450℃,and DRX at 500℃.Further,it is found that the LPSO kinking induced during 350–450℃can delay the DRX.A phenomenological DRX model of GWZK114 alloy is established to be XDRX=1.exp[-0.5((ε-εc)/ε^*)0.91].Non-uniform distribution of plastic strain during compression was considered via finite element method and it ensures a good prediction of DRX fraction under a large plastic strain.Meanwhile,an enhanced DRX model,taking its formulation as XDRX={1.exp[-0.5((ε-εc)/ε*)0.91]}(T/(226.8)-1)n,n=3.82ε0.083,is proposed for the first time to capture the hindering effect of 14 H-LPSO kinking on DRX behavior.The predicted results of this enhanced DRX model agree well with the experimental cases,where 14 H-LPSO kinking is dominated or partially involved(300–450℃).Besides,a size model of DRX grains is also established and can depict the evolution of DRX grain size for all the investigated compression conditions with accounting for temperature rising at high strain rates(5 s^-1 and 10 s^-1). | Hong-Xuan Zhang Shuai-Feng Chen Ming Cheng Ce Zheng Shi-Hong Zhang | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，9： | 1 |
| 8 | Randomized, Controlled Trial of a Sustained Delivery Formulation of 5-Fluorouracil for the Treatment of Failing Blebs显示文摘 | Arun Kumar Narayanaswamy Kelvin Lee Ma Zhen Jocelyn Chua Shu Ming Chai Pui Yi Boey Ce Zheng Tin Aung Subramanian Venkatraman Tina Tzee Ling Wong | 2012 | Ophthalmology2012，，2： | 1 |
| 9 | Peroxisome proliferator- activated receptor-gamma agonist rosiglitazone reverses the adverse effects of diet-induded obesity on oocyte quality 显示文摘 | Minge CE Bennett BD Norman R J | 2008 | Endocrinology2008，149，5： | 1 |
| 10 | Phase-transfer catalyzed Michael addition reaction using a new C2-symmetric quaternary ammonium salt derived from L-proline 显示文摘 | SU Ce XIE Yi Ming ZHANG Qing Tang | 2011 | Catal Lett2011，141，7： | 1 |
| 11 | Direct synthesis of ultrafine tetragonal BaTiO 3 nanoparticles at room temperature显示文摘 | Jian Quan Qi Tao Peng Yong Ming Hu Li Sun Yu Wang Wan Ping Chen Long Tu Li Ce Wen Nan Helen Lai Wah Chan | 2011 | Nanoscale Research Letters2011，，： | 1 |
| 12 | Peroxisome proliferatoractivated receptor-gamma agonist rosiglitazone reverses the adverse effects of diet-induced obesity on oocyte quality显示文摘 | Minge CE Bennett BD Norman RJ | 2008 | Endocrinology2008，149，5： | 1 |
| 13 | Provenance of sediments in the northern Manila Trench:An assessment from detrital zircon geochronology显示文摘Manila Trench is a critical region for revealing the tectonic evolution and source-to-sink process of the South China Sea,but the sediment provenance in the northern part of the trench remains unclear.In this study,we present a first detrital zircon U-Pb geochronology of sediments in the northern Manila Trench,in the vicinity of Northwestern Luzon Island,to identify the sediment provenance and understand the source-to-sink process in the marginal sea.The study shows that the sediments yielded multiple zircon age populations at ca.123,221,443,565,906,and 1871 Ma.A detailed detrital zircon age study indicates that the sediments were derived mainly from Taiwan Island,China,rather than the nearby Luzon Island.In comparison with the modern drainage systems surrounding northeastern South China Sea,this study further confirms that the sediments primarily originated from the Gaoping River(ca.45%),with subordinate contributions from the Lanyang River(ca.24%)and Min River(ca.19%).The study also elucidates two completely different sedimentary transport modes in the northern Manila Trench.The transportation of sediments from southwestern Taiwan Island is primarily related to the gravity-driven transport through the Gaoping submarine canyon.Furthermore,a quarter of detritus derived from eastern Taiwan Island might have been transported by the deep-water circulation of the Luzon Strait.This study highlights the provenance and transport pathway of sediments in the northern Manila Trench and provides a solution for understanding the source-to-sink process in the marginal sea. | Ce WANG Heqi CUI Letian ZENG Ming SU | 2023 | Science China Earth Sciences2023，66，1： | 0 |
| 14 | Comment on:the tumour microenvironment shapes innate lymphoid cells in patients with hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC)is the fourth leading cause of cancer-related deaths worldwide(1).Resident immune cell populations within the liver,which is considered the largest immune organ,increase the pathological complexity of HCC(2).Innate lymphoid cells(ILCs),recently identified leukocytes,are a family of innate immune cells with similar characters to T lymphocytes.ILCs largely exist in intestinal mucosal tissue and regulate intestinal inflammation,mucosal defense,and tissue repair in gut disease processes(3).Unlike T cells,ILCs lack antigen-specific receptors;therefore,they cannot directly mediate antigen-specific responses(4).However,they can be activated by cytokines and/or natural cytotoxic receptors(such as NKp44)(5).ILCs are a highly heterogeneous cell population with high plasticity.Based on the expression of transcription factors and the production of different cytokines,ILCs can be divided into ILC1,ILC2,and ILC3,which are counterparts of the three main helper T cell subsets(Th1,Th2,and Th17)(6).Although ILCs can be detected in various tumor types,their specific contribution to tumor immunity is yet to be thoroughly elucidated. | Lixia Xu Qingxia Yang Ce Tang Ming Kuang | 2022 | Hepatobiliary Surgery and Nutrition2022，11，2： | 0 |
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