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| 1 | Influence of Processing Conditions on Microstructure and Mechanical Properties of Large Thin-Wall Centrifugal Ti–6Al–4V Casting显示文摘在这个工作,包括张力的静电干扰和扔的大薄墙的圆柱的 Ti-6Al-4V 的损坏忍耐性质,温度并且热均衡说的紧迫(HIPping ) 在微结构特征和机械性质上处理的模子预热的效果被学习了。试验性的结果显示出那,增加的模子预热从 673 的温度到 873K,扔的微观结构从 Widmanst 的混合物变化 ? tten 和殖民地微观结构到一个主要殖民地。厚墙节的中心比边和薄节有相对粗糙的微观结构。更低的模子预热温度引起更多的孔。HIPping 过程,它不仅有效地减少扔的毛孔而且增加优先的谷物边界结合并且变粗微观结构,对改进扔的韧性必要。由于表面上的氧污染和更好的微观结构,生气的节上的微坚硬的侧面从表面介绍一个减少的趋势给内部。为预热的不同模子的反应层的厚度温度将近一样(~ 450 畃洠捩潲 ' 跍?湩琠敨戠楬摮栠汯? 楷桴愠搠慩敭整 ? 景 ? 0? | Xin Feng Jianke Qiu Yingjie Ma Jiafeng Lei Yuyou Cui Xinhua Wu Rui Yang | 2016 | Journal of Materials Science & Technology2016,32,4: | 9 |
| 2 | Prediction of Deformation and Footprint of High-speed Rotating Radial Tires显示文摘In this research,the tire deformations due to rotation are divided into three parts:tread,belt and carcass.Tread deformation is obtained by using a rotating hollow cylinder model,belt expansion is calculated according to the laminated composite shell theory,and a formula of dynamic equilibrium profile is built to investigate carcass deformation.Moreover,a simple method is used to predict the footprint changes caused by tire deformation.Results show that a large deformation is occurring at tire shoulder,a smaller one at tread centre,and the shoulder deformations are mostly caused by carcass.Length of footprint side edges increase with tire rolling speed increasing.The predicted tread,belt,carcass deformations and footprint changes are in good agreement with finite element analysis results.The proposed method and the results will offer a helpful guidance to tire and vehicle engineers. | CUI Zhibo CHAI Delong LYU Jiafeng HU Kai ZHANG Chunsheng HOU Dandan WANG Youshan | 2020 | 橡胶工业2020,67,5: | 2 |
| 3 | What confines an annual plant to two separate zones along coastal topographic gradients?显示文摘 | Qiang He Baoshan Cui Yanzi Cai Jiafeng Deng Tao Sun Zhifeng Yang | 2009 | Hydrobiologia2009,,1: | 1 |
| 4 | Diversity and Selectivity of Flowervisiting Insects in Xipu Forest Park显示文摘[Objective]This study was conducted to understand the species and quantity of flowervisiting insects in Xipu Forest Park,supplement the data of local flowervisiting insects,and fill the research gap of flowervisiting insects in the Lesser Hinggan Mountain.[Method]The methods of route survey and sample plot survey were used to investigate the community of flowervisiting insects,and the method of net catching was used to collect flowervisiting insects and record relevant data.[Results]A total of 1526 flowervisiting insects belonging to 79 species,27 families and 9 orders were found.Among them,Lepidoptera was the most,accounting for 40.51%,while Odonata,Mantodea,Hemiptera and Thysanoptera are the least.The results showed that the insect diversity index and insect dominance index were higher in the flower cultivation area,the insect evenness index was highest in the lawn area,and the flowervisiting insects in arbor area and flower shrub area were more similar.Rosaceae had the most flowervisiting insects,followed by Compositae,Cruciferae and Leguminosae.[Significance]The study provides scientific basis and data support for the rational development and utilization,biodiversity protection and sustainable development of forest parks. | WANG Xuechun YANG Shuhan YIN Shi CUI Jiafeng LUO Zhiwen | 2021 | 生物灾害科学2021,44,1: | 0 |
| 5 | Research on Facial Expression Capture Based on Two-Stage Neural Network显示文摘To generate realistic three-dimensional animation of virtual character,capturing real facial expression is the primary task.Due to diverse facial expressions and complex background,facial landmarks recognized by existing strategies have the problem of deviations and low accuracy.Therefore,a method for facial expression capture based on two-stage neural network is proposed in this paper which takes advantage of improved multi-task cascaded convolutional networks(MTCNN)and high-resolution network.Firstly,the convolution operation of traditional MTCNN is improved.The face information in the input image is quickly filtered by feature fusion in the first stage and Octave Convolution instead of the original ones is introduced into in the second stage to enhance the feature extraction ability of the network,which further rejects a large number of false candidates.The model outputs more accurate facial candidate windows for better landmarks recognition and locates the faces.Then the images cropped after face detection are input into high-resolution network.Multi-scale feature fusion is realized by parallel connection of multi-resolution streams,and rich high-resolution heatmaps of facial landmarks are obtained.Finally,the changes of facial landmarks recognized are tracked in real-time.The expression parameters are extracted and transmitted to Unity3D engine to drive the virtual character’s face,which can realize facial expression synchronous animation.Extensive experimental results obtained on the WFLW database demonstrate the superiority of the proposed method in terms of accuracy and robustness,especially for diverse expressions and complex background.The method can accurately capture facial expression and generate three-dimensional animation effects,making online entertainment and social interaction more immersive in shared virtual space. | Zhenzhou Wang Shao Cui Xiang Wang JiaFeng Tian | 2022 | Computers, Materials & Continua2022,,9: | 0 |
| 6 | Expert Consensus on Nutritional Support for Children with Congenital Heart Disease(2023 Edition)显示文摘The second edition of the expert consensus on pediatric nutrition was formed based on a global update of pedia-tric nutrition guidelines or consensus worldwide,the management of congenital heart disease,and the results of multi-center clinical nutrition research for congenital heart disease following thefirst Chinese consensus edition of 2016.The consensus was also shaped by the results of three discussion sessions and two questionnaires con-ducted by the 13-member collaboration group.This process was informed by both clinical guidelines and expert consensus.The quality of literature,both in English and Chinese,and the level of recommendations were evaluated using the Grading of Recommendations Assessment,Development,and Evaluations(GRADE)system. | Xuming Mo Wei Cai Jirong Qi Zhuoming Xu Ying Wang Weihui Yan Shoujun Li Nianguo Dong Xinxin Chen Jinfen Liu Qiang Shu Jimei Chen Haibo Zhang Hao Zhang Quansheng Xing Qi An Xiaofeng Li Xu Wang Yan He Junwu Su Taibing Fan Teng Ming Weibing Tang Li Hong Jinghao Zheng Ming Ye Guocheng Sun Yiqun Ding Liang Tao Yifeng Yang Zhongshi Wu Hua Cao Qiang Wang Keming Yang Libing Zhang Ping Wen Yanqin Cui Bo Zhai Yong Zou Qingya Tang Rui Chen Chun Wu Zhiyu Feng Caixia Liu Yaping Mi Rufang Zhang Ke Lin Xin Li Mingan Pi Xiangming Fan Shanshan Shi Peng Huang Zhengxia Pan Jiafeng Qi Renwei Chen Shuguang Tao Yaqin Shu Huifeng Zhang Lan Jiang Min Da Nishant Patel Liang Hu Cardiac Surgery Group of Pediatric Surgery Society of Chinese Medical Association and Parenteral Enteral Nutrition Society of Chinese Medical Association | 2023 | Congenital Heart Disease2023,18,6: | 0 |