Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及
滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及
滯回曲線,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱
頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
Therapeutic effects of stellate ganglion block with super lizer ha - 550 on migraine
超激光疼痛治療儀星狀神經節阻
滯治療偏
頭痛14例
He just walked and his mind drifted slowly like a torpid stream.
他只是埋
頭走,腦袋裡思想都凝
滯了,有如一汪流不動的溪水。
A received bill of lading is usually unacceptable to the bank or the importer as the goods may be left on the dock or in the godown for weeks or even months before actual shipment takes place
銀行或進口商一般不願接受備運待裝提單,因為貨物可能被
滯留于碼
頭幾周甚至幾個月以後才能裝運。
Although the accuracy in meterological forecast of tropical cyclones has been distinctly improved, it is still a difficult problem confronting masters and anti - typhoon team leaders of the companies how to steer clear of typhoon reasonably and safely in case that the actual resistance to typhoon is strong enough, the sea area wide enough, and the time permitting ; to avoid unreasonable deviation, anchoring for shelter, blindly rushing onto her path, being involved in storm area, even into the the center of typhoon ; under the limitation of the condition of the sea area and time. how to take correct meassures to escape, such as navigating with wind or windward in bias angle, slowing down, anchoring, berthing alongside the warf, mooring to buoy, etc. as early as possible
盡管氣象部門對熱帶氣旋監測預報的準確率已經比過去有了明顯的提高,然而船舶在海上如何避離臺風,如何做到在本船實際抗風能力允許、海域條件允許、時間也充裕的前提下合理避臺,安全避臺,避免不合理的繞航、 「扎風」 ,避免盲目冒進「搶風
頭」 ,更避免被捲入強風區甚至臺風中心;在海域條件受限、時間尷尬的情況下又如何正確採取偏順航、偏頂航、
滯航、錨泊、系岸、系浮等抗臺措施和技術,盡快擺脫臺風的影響,仍然是擺在船長和公司防抗臺領導小組面前的一個實實在在的難題。
An earsplitting noise of merrymaking issued from the open windows and died out far away under the serene evening sky while peasants, belated in the lanes, turned and looked at the flaring rooms
樓里像辦喜事一樣,喧鬧聲震耳欲聾,從每扇窗戶傳出去,消失在遠處的寧靜暮色之中,晚歸的農民
滯留在籬笆外邊,回過
頭來瞧著這座燈火輝煌的別墅。
S had left monte cristo, he fell into profound gloom. around him and within him the flight of thought seemed to have stopped ; his energetic mind slumbered, as the body does after extreme fatigue
在他的身體和在他的內心,一切的思想全都停
滯了,他那強有力的
頭腦和他的身體都已在極端的疲倦以後隱入了微睡狀態。
After several stages of exploration in the past twenty years, china ' s financial reform has made great progress. nevertheless, many " sequelae " have been left and its process embodies gradualness, oriented by the government jagging and unbalancing
但由於改革最初是按照「摸著石
頭過河」的方式展開的,因此留下了許多的「后遺癥」 ,並表現出漸進性、政府主導性、
滯后性和非均衡性的特點。
It is difficult to be settled by classical theories because of fixed quality and quantity. this thesis bases on the improvement of traditional way, overcomes its i ack experience, takes the more advanced fuzzy decision - making and optimal selection theory, researches into the established model and gets the result that it ' s best to set pangtoupao storage and detention flood area on the left side of menjiang river by comparing the four schemes and ten objectives of fixed quality and quantity. the result holds identical views with the result of usual economic evaluation. so it ' s the first time using fuzzy decision - making and optimal selection theory to resolve the important and pragmatic problem comprehensively and scientifically
本文在總結用傳統的方法研究經驗與不足的基礎上,採用目前較先進的模糊優化理論及建立起的模型進行蓄
滯洪區設置及規模研究,通過對嫩江四個蓄
滯洪區方案, 10個定性定量目標的優化比選,得出在嫩江左岸設置胖
頭泡蓄
滯洪區最優,其優選結果與採用常用經濟評價方法所得結果基本一致,從而第一次用模糊優化理論較全面科學地解決松花江流域防洪工程中確定蓄
滯洪區規模這一重大實際問題。
After landing in the countrys capital colombo we traveled to the severely affected village of matara, and witnessed the following vivid scenes that revealed the disasters devastating effects : a small, dark - skinned old woman sitting amid collapsed houses with a look of shock on her face a skinny old man trying to move a heavy stone with his bare hands in front of a house a stupefied mother holding a piece of withered paper in her hand, looking for her lost baby young children who had lost their mothers, their tear - stained faces unwashed people with expressionless faces, not knowing what to do, without will or aim
從斯里蘭卡首都可倫坡前往災區馬塔拉的途中,我們目睹了海嘯過后滿目凄然的景象:一位弱小黝黑的老婦人一臉驚嚇地坐在倒塌的房屋之間枯瘦如柴的老翁正奮力以雙手移動屋前的大石
頭神情呆
滯的母親手持斑駁泛黃的紙張,尋找失蹤的小孩失去母親的孩童,滿臉淚痕人們面無表情茫然失措,完全失去意志力與目標。
After 15 years of economic stagnation and political drift, japan is starting to look perkier
在經歷了15年的經濟停
滯和政治搖擺后,日本經濟復甦風
頭漸勁。
But it is not enough for the new demand after china entry to the wto, or for the demand of the shipping industry management, or for the need of the social market system. some of the laws and rules are out of date. specially, some of the heading laws has not been made out
但從完善交通航運法律體系,適應加入世界貿易組織后的新形勢,滿足今後航運行業管理的需要來看,現有法律、法規同建立社會主義市場經濟的要求,同航運管理的需求相比,還不完善,有的法規
滯后,有些方面還存在空缺,特別是一些龍
頭法還處于空白狀況。
Natasha did not leave her room that morning. with tightly shut, parched lips, and dry, staring eyes, she sat at the window uneasily watching the passers - by along the street, and hurriedly looking round at any one who entered her room
她癟著乾裂的嘴唇,睜開一對哭乾眼淚的
滯然不動的眼睛,坐在窗口,焦急不安地注視街上的過往行人,慌張地回
頭望著向她房裡走來的人。
However, problems caused by traditional ideologies and an insufficiency in attaching importance to talents have come into existence in many basic levels, and these problems have hindered the development of our society. based upon a through investigation and a profound analysis, this thesis argues that so far we have confronted the following problems : 1. an inferior quality in the administration of personnel file, which finds expressions in a lack of individuality and innovation as well as a fake and inaccuracy in the contents and the superiority of politics over the professions
通過大量的調查研究,作者認為人事檔案目前明顯存在的問題主要有:一、人事檔案材料內容質量不高,表現為千人一面、缺乏個性,更新滯后、內容陳舊,把關不嚴、難辨真偽,重政治輕業務等;二、人檔分離現象日趨嚴重, 「無頭檔案」增多;三、人事檔案管理體制不適應新的形勢,表現為管理體制上是多頭管理,管理體繫上仍為傳統的三大類管理,管理方法上「檔隨人走」 ,管理模式上實行封閉式管理;四、人事檔案管理方式陳舊、手段落後,仍以手工操作為主。