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随着装配式钢结构在建筑工程领域的应用日益广泛，单边螺栓连接作为一种高效、便捷的连接方式，逐渐受到业界的青睐。H型钢梁、方钢管柱通过T型钢连接件和单边螺栓连接技术形成新型装配式钢框架结构，梁柱节点作为整个框架体系的核心，其抗震性能对整体结构的影响至关重要。为评估单边螺栓T型钢连接梁柱节点在地震过程中的损伤情况，开展了4种不同刚度单边螺栓T型钢连接梁柱节点的拟静力试验。通过试验，获得了单边螺栓T型钢连接梁柱节点的破坏模式、滞回性能和初始转动刚度，分析了不同刚度的T型钢连接件对梁柱节点的破坏模式、抗弯承载能力和转动刚度退化的影响。采用考虑残余变形累积损伤修正的Park-Ang损伤指数模型研究了试验中节点的损伤演化规律，结果表明：所提出的地震损伤模型能够较好地反映单边螺栓T型钢连接梁柱节点的损伤演化过程与破坏程度，为该类梁柱连接节点的优化设计和安全评估提供了理论依据和实践经验。

Objective To investigate the knowledge and practice regarding disposal of waste insulin needles in patients with diabetes mellitus. Methods Using self-designed questionnaires to investigate the knowledge and practice regarding disposal of waste insulin needles in 307 inpatients with diabetes mellitus. Results The total scores of disposal of insulin needles was(6. 60±1. 51). Univariate analysis showed that history of diabetes、history of insulin injection、receiving instruction of disposal of insulin needles were related with knowledge of disposal of insulin needles(P＜0. 05). 38. 11%(117/307)of patients recapped and threw the used insulin needles into waste containers and brought to hospital when returning hospital. 25. 08%(77/307) of patients recapped and threw into special waste containers. Conclusion The behaviors of disposing used insulin needles was not optimistic and medical staff should strengthen the education of disposing waste insulin needles, and promote the management of the disposal. (目的 调查废弃胰岛素针头处理相关知识和行为的现状。方法 采用自行设计的废弃胰岛素针头处理知识和行为问卷对307例住院糖尿病患者调查。结果 废弃胰岛素针头处理知识总分为(6. 60±1. 51)分。单因素分析结果显示, 糖尿病病史、胰岛素注射史时长、是否接受过废弃胰岛素针头处理的教育与废弃胰岛素针头处理知识有关(P＜0. 05)。38. 11%(117/307)的患者将废弃胰岛素针头盖好外针帽放进废弃容器内, 复诊时带回医院统一处理。25. 08%(77/307)的患者盖外针帽放进专用废弃容器内再丢进垃圾桶。结论 糖尿病患者废弃胰岛素针头处理行为方面不容乐观, 医护人员应加强废弃胰岛素针头处理的教育, 促进对废弃胰岛素针头的妥善管理。)

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Copyright of China Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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【Objective】To instigate the effects of several probiotics on the weight gain, intestinal enzyme activity and serum immune index of Liuzhou Ma chicken, the probiotic effects of several probiotics were compared.【Method】2000 5-day-old Liuzhou Ma chickens were divided into 8 groups, one group was the control that no probiotics were added to the drinking water, and the other seven groups were the experimental groups with different probiotics. In a certain period of time, randomly grab the chicks of 20 or more and weigh them to calculate the body weight gain; At the end of the trial period, 10 Liuzhou Ma chickens were individually bled in each group, and serum was collected for the detection of immunoglobulin content; After the anatomy was performed, the contents of the duodenum, jejunum, ileum and cecum were taken, and lipase activity, amylase activity and protease activity were detected.【Result】The results showed that the probiotics test groups had a good promoting effect on the body weight gain of Liuzhou Ma chicken. Among them, the F1 group and the Kb group had extremely significant differences in weight gain(P<0.01); The results of intestinal enzyme activity tests showed that there were significant differences in lipase, amylase and protease activity between different probiotics(P<0.05); Probiotics can increase serum immunoglobulin A, G, M content(P<0.05).【Conclusion】Probiotics can increase body weight gain, intestinal enzyme activity and immune index of Liuzhou Ma chicken. This study provides data support for the practical application of probiotics. [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Micro-droplet spraying technology on fabric surface is used to print and deposit conductive circuits. In order to clarify the deposition process of droplets on twill fabrics, the geometric structure of twill fabric is established based on the model of cross section and structural parameters of twill fabric. On this basis, The fluid volume method is used to establish the finite element model of collision and deposition of droplets and twill fabrics, and the morphological changes of droplets in different stages after collision with twill fabric are studied. The results show that the complete morphological change process of the droplets after collision with the twill fabric is obtained, the correctness of the finite element model is verified,and the internal mechanism of the change of droplet morphology is clarified. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Postcholecystectomy syndrome (PCS) is a common syndrome with complex etiologies after laparoscopic cholecystectomy, rather than a specific disease. In addition to bile duct stones, bile duct injury, and sphincter of Oddi dysfunction, PCS is also associated with the abnormalities in bile acid pool, farnesoid X receptor, and GPBAR1/TGR5 pathways after surgery, reductions in fibroblast growth factor 19 and surfactant protein D, changes in gastrointestinal hormones such as motilin and cholecystokinin, and disappearance of various physiological reflexes and nerve reflexes involving the gallbladder. All these changes in physiological function can induce PCS. As the number of patients undergoing laparoscopic cholecystectomy is increasing year by year, the incidence rate of PCS is also increasing. This article briefly summarizes the etiology, pathophysiology, diagnosis, treatment, and prevention of PCS. [ABSTRACT FROM AUTHOR]

Objective To investigate the vasodilating effects of protocatechuic aldehyde (PCA) on rat superior mesenteric arterial rings as well as its mechanism. Methods The tension of rat superior mesenteric arterial rings was recorded by a sensitive myograph system in vitro. We measured isometric tension changes in preconstricted rat superior mesenteric artery rings induced by potassium chloride (KCl, 60mmol/L), serotomin (5-HT, 105mol/L), and phenylephrine (PE, 105mol/L) after PCA treatment at different concentrations, respectively. We also observed vasodilating effects of PCA on KCl (60mmol/L) preconstricted rat superior mesenteric arterial rings after incubation with different inhibitors, i.e., L-NAME, Indo, ODQ, 4-AP (KV channel blocker), TEA (KCa channel blocker), BaCl2 (Kir channel blocker), and Glib (KATP channel blocker), respectively. Results PCA (106-103mol/L) could relax KCl (60mmol/L) and 5-HT(105mol/L) preconstricted rat superior mesenteric arterial rings in a concentration-dependent manner. Indo of endothelial mechanism inhibitor blocked the vasodilating effect of PCA. 4-AP and BaCl2 of potassium ion channel inhibitors affected the vasodilatation induced by PCA in KCl (60mmol/L)-preconstricted rat mesenteric artery. Conclusion PCA can relax KCl (60mmol/L), or 5-HT preconstricted rat superior mesenteric arterial rings. This effect is associated with the inhibition of potassium channels and endothelial mechanism. [ABSTRACT FROM AUTHOR]

Beijing-Tianjin inter-city railway travels through the edge of land subsidence funnels. With the increase of uneven settlement, it becomes a threaten for the safe operation of the railway, d ime series interferometry technology is used to obtain the surface deformation along the railway, and cross-section method is used to reveal the spatial distribution and evolution characteristics of uneven subsidence. The results show that the gradient can well reflect the regional uneven land subsidence, which has presented positive correlation with the thickness of compressible layers, groundwater pumping and the railway operation. Compression layers are the basic preconditions, while the groundwater exploitation and utilization and the railway operation are the main reasons for land subsidence. The spatial-temporal distribution of the two factors may jointly determine the evolution of the non-uniform land subsidence. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao is the property of Journal of Nanjing Agricultural University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)