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激光表面熔凝对镍铝青铜组织演变和空蚀行为的影响 被引量:1
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作者 曾思琪 田静静 +2 位作者 胡树兵 肖明 彭博 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2023年第7期2090-2109,共20页
采用激光表面熔凝对镍铝青铜进行表面强化以提高其抗空蚀性能。通过XRD、SEM和TEM等手段对微观结构进行表征,并在超声空泡试验机上进行空泡测试。结果表明:采用功率为3 kW和扫描速度为10mm/s的激光参数时,耐蚀性和抗空蚀性能较铸态合金... 采用激光表面熔凝对镍铝青铜进行表面强化以提高其抗空蚀性能。通过XRD、SEM和TEM等手段对微观结构进行表征,并在超声空泡试验机上进行空泡测试。结果表明:采用功率为3 kW和扫描速度为10mm/s的激光参数时,耐蚀性和抗空蚀性能较铸态合金得到提高。熔凝处理过程中晶粒细化强化、位错强化和析出相强化的协同强化机制以及均匀组织消除选相腐蚀主导了熔凝后镍铝青铜的抗空蚀性能。 展开更多
关键词 镍铝青铜 激光表面熔凝 析出相 位错
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K-115增强自噬调控TGF-β1诱导的人Tenon囊成纤维细胞活化
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作者 樊芳 田净净 +3 位作者 赵智华 马清敏 李科军 贾志旸 《国际眼科杂志》 CAS 北大核心 2022年第9期1441-1445,共5页
目的:研究K-115对人Tenon囊成纤维细胞(HTFs)增殖和迁移的影响,并探讨其相关作用机制,为青光眼术后抗瘢痕治疗提供新思路。方法:选取2018-09/2019-09于河北省人民医院行青光眼手术患者的Tenon囊组织,采用组织块法进行HTFs原代培养,应用... 目的:研究K-115对人Tenon囊成纤维细胞(HTFs)增殖和迁移的影响,并探讨其相关作用机制,为青光眼术后抗瘢痕治疗提供新思路。方法:选取2018-09/2019-09于河北省人民医院行青光眼手术患者的Tenon囊组织,采用组织块法进行HTFs原代培养,应用转化生长因子-β1(TGF-β1)诱导HTFs模拟青光眼滤过性手术后的细胞活化模型,并采用K-115处理细胞。将细胞分为4组:对照组采用溶剂二甲基亚砜(DMSO)处理;TGF-β1组采用10μg/L TGF-β1处理24h;TGF-β1+5 K-115组采用5μmol/L K-115预处理2h后加入10μg/L TGF-β1处理24h;TGF-β1+10 K-115组采用10μmol/L K-115预处理2h后加入10μg/L TGF-β1处理24h。通过细胞增殖实验观察细胞的增殖能力;划痕试验检测细胞的迁移能力;透射电子显微镜观察细胞内自噬小体的形成;Hoechst 33342/PI染色观察细胞凋亡情况。结果:细胞增殖实验结果提示K-115可以抑制TGF-β1诱导的HTFs增殖;划痕试验提示K-115可以抑制TGF-β1诱导的HTFs迁移;透射电子显微镜结果显示K-115可以增强TGF-β1诱导的HTFs自噬。Hoechst 33342/PI染色提示K-115并未诱导细胞凋亡。结论:K-115可能是通过增加HTFs自噬而非诱导凋亡机制调控TGF-β1诱导的HTFs增殖及迁移能力。 展开更多
关键词 K-115 RHO激酶抑制剂 自噬 人Tenon囊成纤维细胞 瘢痕化 青光眼
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Polarization-based range-gated imaging in birefringent medium:Effect of size parameter 被引量:2
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作者 田恒 朱京平 +3 位作者 谭树文 田晶晶 张云尧 侯洵 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第12期282-290,共9页
We have investigated the effect of size parameter of the scatterer on the image quality obtained with polarization-based range-gated imaging in birefringent turbid medium. Both linearly and circularly polarized light ... We have investigated the effect of size parameter of the scatterer on the image quality obtained with polarization-based range-gated imaging in birefringent turbid medium. Both linearly and circularly polarized light were utilized for imaging.The simulated results indicate that the improvement of visibility is more pronounced using circularly polarized light for the birefringent medium composed of smaller-sized scatterers at lower values of optical thickness and the birefringent medium comprising larger-sized scatterers. In contrast, linearly polarized light provides better image quality for the birefringent medium composed of smaller-sized scatterers at larger values of optical thickness. The evolution of the polarization characteristics of backscattered light and target light under the conditions mentioned above was measured to account for these numerical results. 展开更多
关键词 POLARIZATION Monte Carlo simulation BIREFRINGENCE SCATTERING
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Iguratimod in treatment of primary Sjögren’s syndrome concomitant with autoimmune hemolytic anemia:A case report 被引量:1
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作者 Juan Zhang Xin Wang +4 位作者 jing-jing tian Rong Zhu Rui-Xue Duo Yi-Chen Huang Hai-Li Shen 《World Journal of Clinical Cases》 SCIE 2022年第4期1286-1290,共5页
BACKGROUND Primary Sjögren's syndrome(pSS)concomitant with autoimmune hemolytic anemia(AIHA)but without eye and mouth dryness is exceedingly rare.Iguratimod(IGU)has been widely used in the treatment of pSS.Ho... BACKGROUND Primary Sjögren's syndrome(pSS)concomitant with autoimmune hemolytic anemia(AIHA)but without eye and mouth dryness is exceedingly rare.Iguratimod(IGU)has been widely used in the treatment of pSS.However,there are few reports about the application of IGU in pSS concomitant with AIHA.CASE SUMMARY Here,we present the case of a patient with pSS concomitant with AIHA but without eye and mouth dryness.The patient was initially diagnosed with hyperplastic anemia and AIHA while pSS was missed,and was finally diagnosed with pSS concomitant with AIHA.The patient was treated with IGU along with prednisone and hydroxychloroquine,and her hemoglobin,reticulocytes and IgG returned to normal levels.CONCLUSION IGU was effective for and well tolerated by our patient with pSS concomitant with AIHA,and may be a promising therapy for the treatment of this disease. 展开更多
关键词 Autoimmune hemolytic anemia IGURATIMOD Primary Sjögren’s syndrome Case report
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Long-term efficacy of capecitabine plus oxaliplatin chemotherapy on stage Ⅲ colon cancer: A meta-analysis
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作者 Hong-Tao Fu Ying-Ying Xu +5 位作者 jing-jing tian Jia-Xin Fu Shao-Ling Nie Yan-Yan Tang Ping Chen Liang Zong 《World Journal of Meta-Analysis》 2020年第1期27-40,共14页
BACKGROUND Many clinical studies for the long-term survival or efficacy of capecitabine plus oxaliplatin(XELOX)in colon cancer have already been studied,but its clinical benefit is controversial.AIM To evaluate the lo... BACKGROUND Many clinical studies for the long-term survival or efficacy of capecitabine plus oxaliplatin(XELOX)in colon cancer have already been studied,but its clinical benefit is controversial.AIM To evaluate the long-term efficacy of XELOX regimen in comparison with other adjuvant chemotherapy protocols in colon cancer.METHODS By searching the PubMed,EMBASE and Cochrane databases,a total of 12 randomized controlled trials involving 6698 stageⅢcolon cancer cases(XELOX protocol:n=3298 cases;other adjuvant chemotherapy protocol:n=3268 cases)were included.The parameter outcomes included the overall survival and the disease-free survival.The quality control of selected literature was based on the Jadad scale and the GRADE system.RESULTS In comparison to other adjuvant chemotherapy regimen,XELOX regimen showed a better overall survival(odds ratio=1.29,95% confidence interval:1.15-1.44,P<0.0001)and a better disease-free survival(odds ratio=1.32,95%confidence interval:1.18-1.46,P<0.0001)for colon cancer patients,suggesting the XELOX regimen can be a good option for postoperative treatment of stage III colon cancer.CONCLUSION The XELOX regimen can be a preferred option for adjuvant treatment of stageⅢcolon cancer after surgery. 展开更多
关键词 Capecitabine plus oxaliplatin chemotherapy Colon cancer META-ANALYSIS Long-term effect
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