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通过对3个12.9级高强度螺栓连接端板节点和1个10.9级高强度螺栓连接端板节点的拟静力试验，对节点的破坏模式、滞回性能、承载能力和耗能能力等滞回性能进行了对比分析。结果表明：12.9级高强度螺栓连接端板节点试件破坏时倾向于螺纹处发生脆性断裂，无明显塑性变形，而10.9级高强度螺栓连接端板节点试件在破坏时表现为受拉区螺栓脱扣；12.9级螺栓可以有效地延缓端板节点刚度的退化，同时提高节点的承载能力；使用12.9级高强度螺栓替代10.9级高强度螺栓能够提高节点的耗能能力，设置端板加劲肋能够提高节点在发生较大塑性变形时的耗能能力。通过有限元计算进一步研究了轴压比、端板厚度和螺栓预紧力等参数对12.9级高强度螺栓端板节点在往复荷载作用下受力性能的影响，分析表明：端板厚度为20 mm时，12.9级和10.9级高强度螺栓连接端板节点的滞回曲线接近，抗震性能相当，而端板厚度为24 mm的12.9级高强度螺栓连接端板节点的抗震性能有明显提高。

首先采用ABAQUS有限元软件,结合国内已通过试验验证的节点域箱形加强式工字形柱弱轴连接以及已有的焊接节点试验,验证了有限元模拟的有效性。在通过有限元软件ABAQUS模拟几种不同构造形式的削弱型节点,并与标准型节点在单调荷载作用下的承载力、循环荷载作用下的滞回曲线、骨架曲线、强度与刚度退化曲线、断裂指数等方面进行了对比分析,研究结果表明:节点域箱形加强式工字形柱弱轴连接节点局部削弱可以改善节点的破坏形态,实现塑性铰的外移,防止节点脆性断裂;当采用节点域箱形加强式工字形柱弱轴连接的节点形式,由于弱轴方向本身抗侧刚度较大,同时考虑建筑功能要求、抗震效果及经济性等指标,弱轴方向宜采用削弱型节点,其中腹板开孔型节点承载力及刚度没有过多的下降,且滞回曲线饱满,耗能性能及延性较好。而狗骨削弱型节点存在侧向失稳的问题,因此建议节点域箱形加强式工字形柱弱轴连接削弱型节点应采用腹板开孔型节点。

回顾性分析安徽中医药大学附属铜陵市中医医院成功诊治的1例乙肝肝硬化患者误服土三七 致合并肝窦阻塞综合征 (HSOS) 的病例, 通过对该病例的诊断及中西医结合治疗进行分析, 以期提高医务人员 对 HSOS的认识及为临床治疗提供参考, 做到早诊断、早治疗, 以免漏诊漏治。 [ABSTRACT FROM AUTHOR]

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The volatile components of six different grades of jasmine tea samples were analyzed and identified using sensory evaluation method and headspace solid-phase microextraction method, combined with gas chromatography-mass spectrometry technology( HS-SPME/ GC-MS). The results showed that total 52 aroma constituents were identified and the dominant ones being esters, alcohols, alkenes, aldehydes, ketones, phenols and other compounds. Esters and alcohols were key aroma compounds, among which benzyl acetate, linalool, (Z)-3-hexene-benzoate, methyl anthranilate, methyl salicylate and methyl benzoate were the dominant aroma substances. Sixteen aroma components, including (Z)-3-hexene-benzoate, indole, T-juninol, eugenol and α-farnesene, were significantly positively correlated with the aroma quality of jasmine tea. Further research found that the use of XFJTF index could more accurately distinguish the pros and cons of aroma quality of different grades of jasmine tea. [ABSTRACT FROM AUTHOR]

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Objective: To explore the effect of different anesthesia methods on the hemodynamics and stress response during the stereotactic intracranial hematoma removal of the hypertensive cerebral hemorrhage. Methods 80 patients who underwent the stereotactic intracranial hematoma removal in with the hypertensive intracerebral hemorrhage Handan Central Hospital and the Second Hospital of Hebei Medical University from April 2020 to December 2021 were selected into the study. They were randomly divided into the observation group and the control group, with 40 cases in each group. The patients in the observation group were given the scalp nerve block anesthesia before the stereotactic intracranial hematoma removal, and the patients in the control group were given the local infiltration anesthesia before the stereotactic intracranial hematoma removal. The mean arterial pressure (MAP), heart rate (HR), cortisol (COR), norepinephrine (NE) and epinephrine (E) were compared between the two groups before the anesthesia (T0), scalp cutting (T1), drilling (T2) and suture (T3). The pain levels of the two groups of patients were compared at 1 h, 6 h, and 12 h after the surgery, and the Glasgow Coma Score (GCS) score and neurological impairment score (CCS) scores of the two groups before and after the operation were compared. Results The MAP and HR of the control group at T1, T2, and T3 were significantly higher than those at T0 (P < 0.05), and the MAP and HR of the observation group at T1, T2, and T3 were significantly lower than those of the control group (P < 0.05). Cor, NE and E of the observation group at T1, T2, and T3 were significantly lower than those of the control group (P < 0.05). In the control group, Cor, NE and E at T1, T2 and T3 were significantly higher than those at T0 (P < 0.05). The numerical pain rating scale (NRS) scores of the observation group at 1 h, 6 h, and 12 h after the surgery were significantly lower than those of the control group (P < 0.05). The GCS scores of the two groups were significantly higher at 3 days after the surgery, and the CCS scores were significantly lower than those before the surgery (P < 0.05). Conclusion The scalp nerve block anesthesia in the stereotactic removal of intracranial hematoma in patients with the hypertensive intracerebral hemorrhage has more stable hemodynamics and less stress response. [ABSTRACT FROM AUTHOR]

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目的探讨心駐康复护理对心肌梗死患者行介入治疗后预后情况,方法的入该院2017年3月至2019年2月 收治的心肌梗死行介入治疗的患者100例.将其随机分为干预组和对照组.各50例。对照组实施常规护理干预,干预组实装常 か理十心胜康复护理。收集并分析两组患者生活质量(GQOL-74)评分,护理满意度及护理干预过程中并发症情况及工作人员 满意度、采用抑郁自评量表(SDS)和 自评量表(SAS)量表对患者 都及焦虑评分的差异,结果千預组干預后SAS, SDS 评分均低于对照组,而QOL.1-74 评分高子对照垣,差开均有计学真义(P0.05);干预组护理满意度为96.00%(48/50).高于 对照组的80.00 % (40/50).差异有统计学意义(P.0.05);干预组并发症发生率为10.00%(5/50),低于对照组的26,00%(13/ 50),差并有统计学意义(P 0.05)。结论 心脏康复护理可提高心肌梗死行介入手术治疗后患者的生活质量,经其不良心理 收况,提高术后预后效果。 [ABSTRACT FROM AUTHOR]

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[Objective] The present paper aimed to reveal the landscape pattern evolution and driving factors of karst rocky desertification area, and provide a reference for optimizing the land landscape pattern, rocky desertification control and regional sustainable development in the demonstration area. [Method] Taking the typical Karst Plateau Bijie Salaxi demonstration area as the research object, the remote sensing images of three key time periods were selected, including ETM in 2005, 2010 and OLI in 2015. 3 S technology and landscape index analysis method were employed to study landscape pattern and the driving factors. [Result] The main landscape of the study area was cultivated land, followed by shrub forest. The changes of landscape transfer were mainly manifested in the transformation from cultivated land to forest, grassland and construction land, which accounted for 73. 31 % and 24. 75 % of the cultivated land transfer respectively in 2010; By 2015, they accounted for 79. 80 % and 19. 99 % respectively. At the landscape type level, the fragmentation degree of cultivated land, forestland and shrub land was increasing, and the fragmentation degree of grassland and construction land increased first and then decreased. Except for the unused land, the landscape patch shape tended to be complicated. In the overall level of the landscape, the landscape of demonstration area had developed in the direction of fragmentation, complexity, discretization and homogenization in the last 10 years. [Conclusion] The implementation of rocky desertification control project, urbanization construction and land abandonment were the main factors leading to the change of landscape pattern. [ABSTRACT FROM AUTHOR]

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Objective To explore the psychosocial factors in patients with pelvic organ prolapse and depression. Methods A total of 199 patients with pelvic organ prolapse screened from a certain population in Xinjiang were randomly selected in this study. The depressive symptoms were assessed by Hamilton depression scale (HAMD-24). For 199 patients, 62 cases were accompanied by depressive symptoms (depression group), and 137 without depression symptom (nondepression group). Hamilton anxiety scale (HAMA-14), Eysenck personality questionnaire (EPQ), Simplified coping style questionnaire (SCSQ) and Social support rating scale (SSRS) were used to evaluate two groups of patients. Results Depression was found in 31.2% of patients with pelvic organ prolapse. There were statistically significant differences in anxiety, neuroticism, negative coping and subjective support scores between the depression group and the non-depression group (P＜0.05). It was found that anxiety and neuroticism were risk factors for patients of pelvic organ prolapse combined with depression (OR=1.691 and 1.819). Conclusion Medical staff should pay attention to the psychological intervention of the related factors of patients with pelvic organ prolapse and depression, improve the mental health of patients, and promote conservative treatment and surgical treatment of pelvic organ prolapse. [ABSTRACT FROM AUTHOR]

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