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Managing crawling-type gastric adenocarcinoma with endoscopic techniques and postoperative monitoring

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World Journal of Gastroenterology 2024年第43期30卷 4657-4659页

作者： jia-chen yang Liu-Xiang chen Bing Hu Department of Gastroenterology and Hepatology/Digestive Endoscopy Medical Engineering Research Laboratory West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Gastroenterology and Hepatology/Medical Engineering Integration Laboratory of Digestive Endoscopy West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

Crawling-type gastric adenocarcinoma is a rare subtype of gastric cancer with diagnostic and therapeutic challenges due to its flat,ill-defined *** diagnostic techniques,such as narrow-band imaging and linear endoscopic ultrasonography,improve detection,but endoscopic submucosal dissection poses a risk of incomplete *** negative resection margins,vigilant postoperative monitoring is crucial due to the potential for *** letter highlights the importance of refined diagnostic criteria,individualized treatment approaches,and continuous follow-up to optimize management of this unique gastric cancer subtype.

关键词： Crawling-type gastric cancer Superficial flat tumor Positive resection margin Multiple biopsies Endoscopic submucosal dissection Postoperative monitoring

Effects of spinning parameters on microstructures of ellipsoidal heads during marginal-restraint mandrel-free spinning

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Advances in Manufacturing 2020年第4期8卷 457-472页

作者： jia-yang chen Yong-cheng Lin Guo-Dong Pang Xin-He Li School of Mechanical and Electrical Engineering Central South UniversityChangsha 410083People's Republic of China State Key Laboratory of High Performance Complex Manufacturing Changsha 410083People's Republic of China

Marginal-restraint mandrel-free spinning is an advanced technology for manufacturing ellipsoidal heads with large diameter-thickness *** effects of spinning parameters on the forming accuracy of ellipsoidal heads have been studied,and optimized spinning parameters have been *** microstructure evolution of a workpiece is usually very complicated in the spinning *** this work,the influence of spinning parameters on the microstructures of two-pass spun ellipsoidal heads is *** is found that the forming angle and feed rate of the first pass,angle between passes,and feed rate of the second pass significantly affect the ***,the evolution rule of the microstructures near the inner and outer surfaces of the spun parts is almost consistent.A large forming angle,large angle between passes,or large feed rate of the second pass are beneficial to obtain uniform microstructures.A small or large feed rate of the first pass reduces the microstructure *** improve the microstructure uniformity between the inner and outer surfaces,the optimized spinning parameters are determined.

关键词： Spinning Thin-walled ellipsoidal heads Spinning parameters Microstructure evolution

Residual-stress relaxation mechanism and model description of 5052H32 Al alloy spun ellipsoidal heads during annealing treatment

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Advances in Manufacturing 2022年第1期10卷 87-100页

作者： Yong-cheng Lin jiang-Shan Zhu jia-yang chen Jun-Quan Wang School of Mechanical and Electrical Engineering Central South UniversityChangsha 410083People’s Republic of China

Marginal-restraint mandrel-free spinning is an advanced technology for manufacturing ellipsoidal heads with large diameter-thickness ***,the spinning-induced residual stress,which greatly influences the in-service performance of spun heads,should be *** this study,the effects of annealing on the residual-stress relaxation behavior of 5052H32 aluminum alloy spun heads were *** is found that the residual stress first rapidly decreases and then remains steady with the increase in annealing time at the tested annealing *** relaxation of the residual stress becomes increasingly obvious with the increase in annealing *** the annealing temperature is less than 220℃,there are no obvious changes in grain ***,the spinning-induced dislocations are consumed by the static recovery behavior,which decreases the residual stress during *** the annealing temperature is approximately 300℃,the broken grains transform into equiaxed *** addition,static recrystallization and recovery behaviors occur simultaneously to promote the relaxation of the residual *** the different stress relaxation mechanisms,a model based on the Zener-Wert-Avrami equation was established to predict the residual-stress relaxation ***,the optimized annealing temperature and time were approximately 300C and 30 min,respectively.

关键词： Spinning Residual stress Annealing treatment Microstructure evolution Relaxation mechanism

The discovery of the genus Indabracon van Achterberg （Hymenoptera： Braconidae： Braconinae）in China, with description of one new species

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Insect Science 2006年第4期13卷 319-323页

作者： jiaN-QUAN yang jia-HUA chen JUAN-JUAN LIU Beneficial Insects Lab Fujian Agriculture & Forestry University Fuzhou China

The genus Indabracon van Achterberg, 1993 was discovered in China, and one new species （I. bicolor sp. nov.） of this genus is fully described and illustrated in the present paper. A key to the species of the genus is provided. The new species is similar to the Indian species I. trimaculatus （Cameron, 1900） structurally, but differs for example by： basal half of pterostigma yellow; apical half dark brown; smooth postero-lateral area of the third tergite rather small; propodeum with belt of setae dorsally and lamelliform carinae posteriorly; ovipositor sheath approximately 0.60 times the forewing, somewhat longer than metasoma; the first tergite surface distinctly carinate and rugose, especially in its medial area and laterally. The type specimens are deposited in the Beneficial Insects Lab, College of Plant Protection, Fujian Agriculture ＆ Forestry University, China.

关键词： Braconidae Braconinae China Indabracon new species

An MSX infrared analysis of the superbubble around the giant HII region NGC3603

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Science China(Physics,Mechanics & Astronomy) 2010年第S1期53卷 271-273页

作者： WANG jia & chen yang Department of Astronomy,Nanjing University,Nanjing 210093,China 1. Department of Astronomy Nanjing University Nanjing 210093 China

Using the MSX mid-infrared observations,we reveal a 100pc-scale superbubble surrounding the giant HII region *** suggest that the diffuse surrounding infrared emission in bands A,C,and D is dominated by that of PAH and the emission in band E is dominated by that of dust *** fitted dust temperature is consistent with heating by the central cluster's UV *** derived gas-to-dust mass ratio for the bubble shell is of order 102.

关键词： superbubble HII region cluster PAH dust

The impact of nanoporous SiN_x interlayer growth position on high-quality GaN epitaxial films

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Chinese Science Bulletin 2011年第25期56卷 2739-2743页

作者： MA ZiGuang XING ZhiGang WANG XiaoLi chen Yao XU PeiQiang CUI YanXiang WANG Lu jiaNG yang jia HaiQiang chen Hong Beijing National Laboratory of Condensed Matter Institute of Physics Chinese Academy of Sciences Beijing 100190 China

The impact of nanoporous SiN x interlayer growth position on high-quality GaN epitaxial film was elucidated from the behavior of dislocations. The best quality GaN film was achieved when a nanoporous SiN x interlayer was grown on a rough layer, with the high-resolution X-ray diffraction rocking curve full width at half maximum for ( 1102 ) reflection decreasing to 223 arcs, and the total dislocation density reduced to less than 1.0×10 8 cm 2 . GaN films were grown on sapphire substrates by metal organic chemical vapor deposition. The quality of these films was investigated with high-resolution X-ray diffraction, atomic force microscopy, and cross-sectional transmission electron microscopy. A preference for the formation of half-loops to reduce threading dislocations was observed when an SiN x interlayer was grown on a rough layer. A growth mechanism is proposed to explain this preference.

关键词：氮化硅外延片多孔层间氮化镓 GaN薄膜化学气相沉积法透射电子显微镜

Gene expression in rat mesenchymal stem cells following treatment with natural cerebrolysin-containing serum Validation of a whole genome microarray technique

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Neural Regeneration Research 2010年第6期5卷 424-432页

作者： Yinghong Li Zhengzhi Wu Ming Li Xiuqin jia Min yang Manyin chen First Affiliated Hospital of Shenzhen University Shenzhen Institute of Integrated Chinese and Western Medicine Shenzhen 518035Guangdong Province China

BACKGROUND： Natural cerebrolysin （NC）, a Chinese herbal drug for the treatment of Alzheimer＇s disease （AD）, induces mesenchymal stem cell （MSC） differentiation into neuron-like cells, with low toxicity. But the mechanisms involved in NC effects on MSCs remain poorly understood. OBJECTIVE： We used a whole genome microarray technique to further investigate the molecular, genetic, and pharmacodynamic mechanisms of NC on MSC gene expression profiles. DESIGN, TIME AND SETTING： A parallel, controlled, in vitro experiment was performed at the First Affiliated Hospital of Shenzhen University, Shenzhen Institute of Integrated Chinese and Western Medicine, China, between September 2006 and October 2008. MATERIALS： NC was provided by Shenzhen Institute of Integrated Chinese and Western Medicine China. It was predominantly composed of Renshen （Radix Ginseng）, Tianma （Rhizoma Gastrodiae） and Yinxingye （Ginkgo Leaf） and prepared by conventional water extractJon technology. Twelve adult, male, New Zealand rabbits were included, six of which underwent intragastric administration of NC extract for 1 month to create NC-containing serum. METHODS： Bone marrow was collected from the tibia and femur of Sprague Dawley rats, aged 6 8 months old. Rat MSCs were isolated and purified by the whole bone marrow adherence method. After in vitro culture, MSCs from passage 4 were treated with NC-containing serum for 48 hours, and total RNA was extracted. Gene expression in MSCs was analyzed using Affymetrix whole genome microarray analysis. MAIN OUTCOME MEASURES： Differentially expressed genes in NC serum-treated MSCs. RESULTS： NC treated MSCs displayed 46 differentially expressed genes, 22 with upregulated expression （fold change 〉 2） and 24 with downregulated expression （fold change 〈 -2）. Differentially expressed genes participated in neuronal growth, differentiation, and function, cell growth, differentiation, proliferation, apoptosis, signal transduction, substance/energy metabolism, ion trans

关键词： natural cerebrolysin whole genome chip mesenchymal stem cells gene expression profile Alzheimer's disease neural regeneration neurodegenerative disease

中国共产党领导移风易俗的史实考察及经验启示

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毛泽东邓小平理论研究 2023年第2期 87-96,109页

作者：杨家宸西安理工大学马克思主义学院

作为马克思主义政党,推动社会革命是中国共产党的重要使命,移风易俗是中国共产党推动社会革命的重要内容。建立新社会、树立新风尚需要移风易俗,我们党领导移风易俗的主要内容包括变革愚昧精神风气、消除不良社会风气、革除落后家庭风... 详细信息

作为马克思主义政党,推动社会革命是中国共产党的重要使命,移风易俗是中国共产党推动社会革命的重要内容。建立新社会、树立新风尚需要移风易俗,我们党领导移风易俗的主要内容包括变革愚昧精神风气、消除不良社会风气、革除落后家庭风气、改变肮脏(邋遢)生活风气,树立科学、良性、平等、健康的新风俗。中国共产党通过不同时期领导的移风易俗运动积累了丰富的社会治理经验,对培育良好的社会氛围,进一步推动社会进步,使中国式现代化真正实现物质文明丰裕和精神文明丰富,推动形成物质文明和精神文明相统一的人类文明新形态具有重要意义。

关键词：中国共产党移风易俗史实经验

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立体图像中间视点生成算法

天津大学学报 2011年第4期44卷 339-343页

作者：杨嘉琛安坤王斌天津大学电子信息工程学院天津300072 国家海洋技术中心天津300112 北京机械工业自动化研究所北京100120

针对观看三维场景时如何自由选择视点与立体景物多视点拍摄困难的问题,提出了一种立体图像中间视点生成算法.算法首次使用图像中物体边缘进行特征点提取,然后利用特征点建立Delaunay三角形网格,并通过网格映射进行视差矢量场快速计算,... 详细信息

针对观看三维场景时如何自由选择视点与立体景物多视点拍摄困难的问题,提出了一种立体图像中间视点生成算法.算法首次使用图像中物体边缘进行特征点提取,然后利用特征点建立Delaunay三角形网格,并通过网格映射进行视差矢量场快速计算,最后通过内插算法进行中间视点图像生成.实验结果表明,合成的中间视点图像质量良好,可以正确地反映原有左右视点内容,并且具有良好的视觉效果.

关键词：立体图像中间视点生成视差矢量场视差估计边缘检测