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高速铁路简支箱梁架设工期研究 被引量:4
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作者 薛国华 《铁路工程造价管理》 2006年第4期13-16,共4页
从高速铁路补充定额入手,结合案例分析研究了简支箱梁架设进度、供应范围、加快架设进度的措施,为设计阶段高速铁路简支箱梁工期的确定分析提供一种思路。
关键词 高速铁路 简支箱梁 工期研究
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小湾水电站地下厂房施工期洞室群施工仿真模拟的研究 被引量:7
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作者 王民寿 杨兴国 +1 位作者 谢培忠 张文仲 《云南水力发电》 2000年第2期44-49,共6页
扼要介绍了国家“九五”科技攻关于题“小湾超大型地下厂房洞室群合理施工顺序研究”中地下洞室群仿真模拟程序TUNNEL的特点以及在小湾水电站超大型地下厂房枢纽洞室群施工合理工期论证研究中的应用。
关键词 小湾水电站 地下洞室群 施工仿真模拟 工期研究
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倒三角空心螺钉辅助横形拉力螺钉与股骨颈系统固定PauwelsⅢ型股骨颈骨折
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作者 沈师 许玉林 +4 位作者 李宇洁 徐学鹏 向飞帆 叶俊武 卓乃强 《中国组织工程研究》 CAS 北大核心 2024年第33期5351-5356,共6页
背景:PauwelsⅢ型股骨颈骨折具有较高的垂直剪切力、术后并发症发生率高等特征,是一种典型的不稳定骨折。目前治疗PauwelsⅢ型骨折固定方式较多,何种内固定为青壮年PauwelsⅢ股骨颈骨折的最佳固定方式,尚无明确结论。目的:比较3枚倒三... 背景:PauwelsⅢ型股骨颈骨折具有较高的垂直剪切力、术后并发症发生率高等特征,是一种典型的不稳定骨折。目前治疗PauwelsⅢ型骨折固定方式较多,何种内固定为青壮年PauwelsⅢ股骨颈骨折的最佳固定方式,尚无明确结论。目的:比较3枚倒三角空心螺钉辅助横形拉力螺钉、股骨颈系统固定PauwelsⅢ型青壮年股骨颈骨折的临床效果。方法:选择2021年5月至2022年12月于西南医科大学附属医院就诊,采用3枚倒三角空心螺钉辅助横形拉力螺钉与股骨颈系统治疗的PauwelsⅢ型青壮年股骨颈骨折患者21例,其中9例采用3枚倒三角形空心螺钉+1枚垂直骨折线的横行拉力螺钉治疗(3+1空心螺钉组),12例患者采用股骨颈系统固定治疗(股骨颈系统组)。在手术时间、术中失血量、手术切口总长度、术中透视次数,骨折愈合时间、肢体功能等方面对两种固定方式进行比较。结果与结论:①所有患者均获得随访,3+1空心螺钉组患者随访时间10-25个月,平均(17.44±4.30)个月;股骨颈系统组患者随访时间8-24个月,平均(15.58±4.68)个月。②在术中透视次数、术后3个月Harris评分方面,股骨颈系统组优于3+1枚空心螺钉组,差异有显著性意义(P<0.05);3+1枚空心螺钉组的术中失血量、切口总长度、股骨颈短缩距离优于股骨颈系统组,差异有显著性意义(P<0.05);两组患者的手术时间、骨折愈合时间、末次随访Harris评分方面差异均无显著性意义(P>0.05)。③提示3枚倒三角空心螺钉辅助横形拉力螺钉与股骨颈系统治疗青壮年PauwelsⅢ型股骨颈骨折均能取得良好的临床效果,股骨颈系统术中透视次数更少、早期整体稳定性更好,而3+1枚空心螺钉固定更微创、操作更便捷。两种固定方式均值得临床应用与推广,可结合临床实际情况进行选择。 展开更多
关键词 股骨颈骨折 PauwelsⅢ型 股骨颈系统 倒三角空心螺钉 横形拉力螺钉
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Necessity Is the Mother of Invention for Research and Extension Agenda of Rubber Smallholders
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作者 Rahim Md. Sail Sucihatiningsih Dian Wisika Prajanti Hanina Halimatusaadiah Hamsan 《Journal of Agricultural Science and Technology(B)》 2017年第6期367-373,共7页
Researchers and extensionists would pursue their interests to develop new inventions and encourage rubber smallholders to adopt new technology and practices to increase production of their holdings. Three interrelated... Researchers and extensionists would pursue their interests to develop new inventions and encourage rubber smallholders to adopt new technology and practices to increase production of their holdings. Three interrelated systems, research and development (R&D) system, extension/delivery system and client (smallholders) system, are responsible to make the rubber industry viable and dynamic. The extension system is also encouraged to identify and carry out related research activities besides its own core function to enhance clients' understanding and to use the findings as basis to plan effective strategies for implementation. Knowledge acquisition among clients is critical in capacity building process. With knowledge, clients tend to develop favorable attitude and use it to develop specific skill to practice recommended technology and new practices. Necessity is the mother of invention in times of need, especially when rubber price is low. Researchers, extensionists and smallholders are "forced" to collaborate and become creative to fred alternative ways and uses of natural rubber to increase demand of the commodity. When natural rubber price is low, funding for research needs to be maintained at current level, or in some cases, funding is increased to ensure that the industry is not void of new technology and new products. The main goal of the rubber industry is to ensure that new technology and practices are continuously being generated and developed by researchers to be adopted by rubber smallholders. The adoption of new technology and practices by smallholders ensures that production of natural rubber continues to increase, while income of smallholders is maintained or increased at an appreciative level to offset low rubber prices. There is an inclination in the rubber industry that when the commodity's price is low, activities and programs related to research and dissemination of research results would follow to be reduced, resulting in stagnation and opportunities for future growth of the industry. The National Blue Ocean Strategy (NBOS) should be used to harness expertise in research among researchers of local universities, as well as to cooperate among extensionists from agencies at state and national levels to help disseminate research results. The NBOS can reduce cost, and has bigger impacts and wider applications of natural rubber for local and international markets. 展开更多
关键词 NECESSITY research and extension agenda rubber smallholders
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Acupuncture and moxibustion for functional hypothalamic amenorrhea by establishing artificial cycle:a controlled trial 被引量:5
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作者 许素瑜 李艳 +1 位作者 吴菲远 卓晓云 《World Journal of Acupuncture-Moxibustion》 CSCD 2016年第1期7-13,共7页
Objective To observe the clinical efficacy of acupuncture and moxibustion in treatment of functional amenorrhea by establishing artificial cycle.Method One hundred and twelve eligible patients with functional amenorrh... Objective To observe the clinical efficacy of acupuncture and moxibustion in treatment of functional amenorrhea by establishing artificial cycle.Method One hundred and twelve eligible patients with functional amenorrhea were divided into an acupuncture-moxibustion group(64 cases) and a western medication group(48 cases) by adopting random method.According to the pattern differentiation of amenorrhea of traditional Chinese medicine,the patients in the acupuncture-moxibustion group were classified into two types:amenorrhea due to blood depletion and amenorrhea due to stagnation of blood.For patients with amenorrhea due to blood depletion,Guanyuan(关元 CV4),Zhongji(中极CV 3),GuiTlai(归来ST 29),Geshu(膈俞 BL 17),Ganshu(肝俞BL 18),Pishu(脾俞 BL 20) and Shenshu(肾俞 BL 23) were selected.At first,BL 17,BL 18,BL 20 and BL 23 were needled;after deqi,reinforcing method was applied,and the needles were not retained.Then,warmingneedle moxibustion was applied at CV 4,CV 3 and ST 29,and the needles were retained for 30 min.For patients with amenorrhea due to stagnation of blood,CV 3,Qihai(气海CV 6),Xuehai(血海 SP 10),Sanyinjiao(三阴交 SP 6)and Xingjian(行间 LR 2) were selected,reducing method was applied,and the needles were retained for 30 min.The treatment was performed once a day,and treatment for 15 consecutive days were the 1st cycle.The 2nd and3 rd cycles started from the 5th day of menstruation(for the patients still not menstruating,the 2nd and 3rd cycles started from the 29 th and 57 th days since the 1st day of treatment),and the treatment lasted for 15 days.Three cycles were needed.In the western medicine group,estrogen-progestogen was taken orally for 21 days(one cycle) to establish a artificial cycle.The levels of FSH and LH were tested and compared on the 3rd day of menstruation before treatment and after the 3rd cycle of treatment,and the adverse effects were analyzed statistically.Follow-up visit was conducted for the patients after treatment for three cycles,and the recurrence rate was calculated.Result The levels of FSH and LH of patients with functional amenorrhea were enhanced significantly through establishing artificial cycle by acupuncture and moxibustion.There was no significant difference between the acupuncture-moxibustion group and the western medication group in effective rate(P〉0.05);but the adverse effect rate(1.49%) and recurrence rate(25.0%) of the acupuncture-moxibustion group were lower than that of the western medication group(with the adverse effect rate of 4.14%,and recurrence rate of 69.8%)(both P〈0.05).Conclusion The levels of FSH and LH of patients with functional amenorrhea can be enhanced significantly through establishing artificial cycle by acupuncture and moxibustion.The efficacy of acupuncture and moxibustion in treatment of functional amenorrhea by establishing artificial cycle is equivalent to that of oral administration of estrogen-progestogen in treatment of functional amenorrhea by establishing artificial cycle,but the adverse effect rate and recurrence rate of acupuncture and moxibustion group are lower. 展开更多
关键词 functional amenorrhea acupuncture and moxibustion artificial cycle controlled trial
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