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Microstructures and mechanical properties of Ti3Al/Ni-based superalloy joints arc welded with Ti–Nb and Ti–Ni–Nb filler alloys

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Progress in Natural Science:Materials International 2014年第4期24卷 313-320页

作者： Bingqing Chen Huaping Xiong Bingbing Sun siyi tang Borui Du Neng Li Laboratory of Welding and Forging Beijing Institute of Aeronautical Materials

Dissimilar joining of Ti3Al-based alloy to Ni-based superalloy has been carried out using gas tungsten arc(GTA) welding technology with Ti–Nb and Ti–Ni–Nb filler *** joint welded with the Ti–Nb filler alloy contained much less interfacial brittle phases than the one using the Ti–Ni–Nb filler *** average room-temperature tensile strength of the joint welded with Ti–Nb was 202 MPa and the strength value of the one welded with Ti–Ni–Nb was 128 *** both fillers,the weak links of the dissimilar joints were the weld/In718 *** presence of TiNi,TiNi3 and Ni3Nb intermetallic compounds in the joint welded with Ti–Ni–Nb induced microcracks at the weld/In718 interface and deteriorated the mechanical properties of the *** the adoption of the Ti–Nb filler alloy decreased the formation tendency of interfacial brittle phases to some extent and thus enhanced the tensile strength of the joint.

关键词： Ti3Al Ni-based superalloy Arc welding Interface Intermetallics Mechanical properties

Preventive effect of kiwi berry(Actinidia arguta)on loperamide-induced constipation

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Food Science and Human Wellness 2024年第3期13卷 1410-1421页

作者： Jiyue Zhang Bin Li Ningxuan Gao Haikun Li Xingyue Cui Hanqian Jiang siyi tang Chenyu Jin Jinlong Tian College of Food Science Shenyang Agricultural UniversityShenyang 110866China

Constipation is a common intestinal *** berries can effectively prevent ***,studies have yet to be done to determine how kiwi berries prevent *** two weeks,mice in this study were continually orally gavaged with kiwi berry,loperamide,or a combination of the *** study found that the kiwi group's feces had more water than the constipated *** addition,kiwi berries can speed up gastrointestinal transit(GI),shorten the time it takes to pass the first dark stool,and dramatically enhance body weight *** the interstitial cells of Caj al(ICC)cells and colon tissues,alterations in the protein expression of vasoactive intestinal peptide(VIP),cyclic adenosine monophosphate(cAMP),protein kinase A(PKA),and aquapcrin-3(AQP3)were *** 3,6,and 12 h of ICC cells and mouse colon,the kiwi group's VIP,cAMP,PKA,and AQP3 protein expression levels were lower than those of the constipated *** kiwi berry can decrease the Firmicutes to Bacteroidetes ratio and boost the diversity and quantity of gut *** influencing the gut microbiota and VIP-cAMP-PKA-AQP3 signaling pathway,kiwi berries prevent constipation.

关键词： Kiwi berry Constipation VIP-cAMP-PKA-AQP3 Gut microbiota

Effects of Angelica sinensis extracts on lipid oxidation in fish feeds and growth performance of juvenile Jian carp(Cyprinus carpio var. Jian)

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Animal Nutrition 2019年第1期5卷 109-114页

作者： Huatao Li Dandan Yang Zhihao Li Mingquan He Fengyi Li Jun Jiang siyi tang Peiyuan Peng Wenhao Du Yuting Ma Ying Liu Key Laboratory of Sichuan Province for Conservation and Utilization of Fishes Resources in the Upper Reaches of the Yangtze River Neijiang Normal University College of Life Sciences Neijiang Normal University College of Animal Science and Technology Sichuan Agricultural University

The study was to explore the effect of the extracts of Angelica sinensis(EAs) on lipid oxidation in fish feeds compared with ethoxyquin(EQ) and the effect of dietary EAs on growth performance of carp(Cyprinus carpio var. Jian). Firstly, fish feeds were respectively added with EQ, and ethyl ether extract ethyl acetate extract(EAE), acetone extract, ethanol extract(EE) and aqueous extract(AQE) of Angelica sinensis, except for the control. The results showed that EAs and EQ inhibited lipid oxidation in fish feed(P < 0.05). Of all of the examined EAs, EAE showed the strongest protective effects against lipid oxidation(P < 0.05). Moreover, EAE at high concentrations showed a stronger effect on lipid oxidation compared with EQ(P < 0.05). Then, 7 experimental diets respectively supplemented with 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 g/kg of EAE were fed to the respective treatment groups for 30 d. Four replicates were performed for each treatment group; 20 carp(mean weight: 12.10 ± 0.13 g) were in each replicate. The result indicated that dietary EAE improved the growth performance in carp(P < 0.05). The appropriate con centration of EAE for carp growth was estimated to be 3.643 g/kg diet. Thus, EAE could be used as a natural antioxidant in feeds for Jian carp.

关键词： Angelica sinensis Extracts Ethoxyquin Lipid oxidation Growth performance

Numerical simulation of horizontal transversal displacement under different fixed clamping force of welding fixture for superalloy during TIG welding

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China Welding 2018年第2期27卷 19-23页

作者： Zhang Wenyang Guo Shaoqing Yuan Zhongjin tang siyi Liang Jiayu Welding and Forge Process Laboratory AECC Beijing Institute of Aeronautical Materials Beijing 100095 China Dassault Systemes SIMULIA Corp. (China) Beijing 100025China

A numerical model is established by Abaqus software for superalloy during tungsten inert gas （TIG） welding with welding fixture to simulate the weld temperature filed, stress and strain field, and weld plate＇s horizontal trasnsveral shift. The clamp force perpendicular to the weld plate varying with welding time was analyzed. The maximum clamp force during welding process was calculated. Under the condition of insufficient of clamping force, a half or one third of the maximum clamp force for example, the weld plate＇s horizontal transversal displacement could happen and also be computed.

关键词： TIC welding welding fixture clamping force transverse displacement finite element method

Preventive effect of kiwi berry(Actinidia arguta) on loperamide-induced constipation

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Food Science and Human Wellness 2023年

作者： Bin Li Jiyue Zhang Ningxuan Gao Haikun Li Xingyue Cui Hanqian Jiang siyi tang Chenyu Jin Jinlong Tian College of Food Science， Shenyang Agricultural University

Constipation is a common intestinal disease. Kiwi berries can effectively prevent constipation. However， studies have yet to be done to determine how kiwi berries prevent constipation. For two weeks， mice in this study were continually orally gavaged with kiwi berry， loperamide， or a combination of the two. This study found that the Kiwi group’s feces had more water than the constipated mice. In addition， kiwi berries can speed up gastrointestinal transit (GI)， shorten the time it takes to pass the first dark stool， and dramatically enhance body weight gain. In the interstitial cells of Cajal (ICC) cells and colon tissues， alterations in the protein expression of vasoactive intestinal peptide (VIP)， cyclic adenosine monophosphate (cAMP)， protein kinase A (PKA)， and aquaporin-3 (AQP3) were found. At 3， 6， and 12 h of ICC cells and mouse colon， the Kiwi group’s VIP， cAMP， PKA， and AQP3 protein expression levels were lower than those of the constipated mice. The kiwi berry can decrease the Firmicutes to Bacteroidetes ratio and boost the diversity and quantity of gut microbiota. By influencing the gut microbiota and VIP-cAMP-PKA-AQP3 signaling pathway， kiwi berries prevent constipation.

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The effect of kiwi berry(Actinidia arguta)on preventing and alleviating loperamide-induced constipation

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Food Innovation and Advances 2023年第1期2卷 1-8页

作者： Jiyue Zhang Dongnan Li Qilin Tian Yumeng Ding Hanqian Jiang Guang Xin Shunchang Cheng siyi tang Chenyu Jin Jinlong Tian Bin Li College of Food Science Shenyang Agricultural UniversityShenyang 110866LiaoningChina

This research aimed to study the preventive and relieving outcomes of kiwi berry on *** administration of kiwi berries to mice resulted in a significant increase in body weight gain of 148.2%compared to mice that were *** number of stools and the water content of stools both increased by 138.5%and 106.5%,*** gastrointestinal transit rate increased by 45.3%,and the time it took for the first dark stool to form decreased by 57.5%.The levels of the excitability neurotransmitters were found to be higher in the group that had been given kiwi berries in comparison to the group that had been given *** opposite results were produced by vasoactive intestinal peptide(VIP)and aquaporin-3(AQP3).In addition,kiwi berry consumption may lessen epithelial cell apoptosis and promote colon *** the results point to kiwi berries as an extremely promising food supplement for the prevention and relief of constipation in the future since they successfully prevent and alleviate constipation brought on by loperamide.

关键词： constipation prevention colon

CCR3基因在呼吸道过敏性疾病中对相关炎性细胞的作用研究

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临床耳鼻咽喉头颈外科杂志 2021年第1期35卷 80-84页

作者：唐思艺朱新华(审校) 南昌大学第二附属医院南昌330006 南昌大学医学院南昌大学第二附属医院耳鼻咽喉头颈外科

呼吸道过敏性疾病主要包括变应性鼻炎(allergic rhinitis,AR)和哮喘(allergic asthma,AA),AA主要特征为气道炎症、可逆性气道阻塞和气道高反应性,AR的特征是气道高反应性、鼻黏膜肿胀、血管通透性增强、有大量清水样分泌物,上下气道的... 详细信息

呼吸道过敏性疾病主要包括变应性鼻炎(allergic rhinitis,AR)和哮喘(allergic asthma,AA),AA主要特征为气道炎症、可逆性气道阻塞和气道高反应性,AR的特征是气道高反应性、鼻黏膜肿胀、血管通透性增强、有大量清水样分泌物,上下气道的同一性使AR与AA的发病密切相关。据资料统计,全球儿童AR的发病率为2%~25%,成人为10%~40%[1]。

关键词： CC趋化因子受体3 呼吸道过敏性疾病嗜酸粒细胞肥大细胞嗜碱粒细胞

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完整与支离:2020年度罗中立奖学金

当代美术家 2021年第3期 60-62页

作者：唐思意不详

本届奖学金的作品主题风格区分比较明显,大致可以分为科技发展与人的关系、疫情下艺术家从微观出发对生活社会思考这两个方面。展览作品的呈现完成度高,与此同时作品的呈现又是支离的,在相对独立的空间中,同时用到了绘画、视频、装置,... 详细信息

本届奖学金的作品主题风格区分比较明显,大致可以分为科技发展与人的关系、疫情下艺术家从微观出发对生活社会思考这两个方面。展览作品的呈现完成度高,与此同时作品的呈现又是支离的,在相对独立的空间中,同时用到了绘画、视频、装置,从平面到空间的运用,这样的展出方式让观者分散了注意力,也增加了艺术家对不同媒介控制的难度,对于作品运用媒介的张力可能会相互抵消,笔者通过对展览作品的讨论分析艺术家创作中完整与支离的关系。

关键词：艺术与科技青年艺术媒介

镧系Eu^(3+)/PMMA聚合物杂化探针的制备及其对唾液酸的传感检测应用

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发光学报 2023年第11期44卷 2076-2080页

作者：闵华刘丽夏继绩徐陈唐思祎李颖上海理工大学科技发展研究院技术转移中心上海200093 上海理工大学材料与化学学院上海200093

设计合成了一种Eu^(3+)离子功能化的聚合物基稀土杂化探针。利用苯甲酰三氟丙酮(BFA)与镧系Eu^(3+)进行配位反应得到配合物Eu(BFA)_(3)后再进一步与MMA单体进行聚合制备得到聚合物杂化探针分子Eu‐(BFA)_(3)@PMMA,对Eu(BFA)_(3)@PMMA的... 详细信息

设计合成了一种Eu^(3+)离子功能化的聚合物基稀土杂化探针。利用苯甲酰三氟丙酮(BFA)与镧系Eu^(3+)进行配位反应得到配合物Eu(BFA)_(3)后再进一步与MMA单体进行聚合制备得到聚合物杂化探针分子Eu‐(BFA)_(3)@PMMA,对Eu(BFA)_(3)@PMMA的结构和荧光性能进行了详细的探究,并且将其用于肿瘤标志物唾液酸(SA)的传感检测应用。研究结果表明,SA能对Eu(BFA)_(3)@PMMA的荧光产生明显的猝灭效果。此外,在最佳激发波长为325 nm时进行荧光性能对比实验发现Eu(BFA)_(3)@PMMA对SA具有较强的选择性和抗干扰能力,且检出限较低。

关键词：镧系配合物杂化探针唾液酸荧光传感

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