收縮同期 的英文怎麼說
中文拼音 [shōusuōtóngqī]
收縮同期
英文
systolic time interval-
The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete
研究結果表明，水泥的品種和用量是影響混凝土收縮值的主要因素之一，當混凝土中水泥用量超過470kg / m ~ 3時，混凝土的收縮值超過400 10 ~ （ - 6 ） ，在約束狀態下存在高開裂風險；採用細砂使混凝土單位用水量顯著提高，收縮值也大幅增加；優質粉煤灰總體上能抑制混凝土的收縮，以超量方式摻入其抑制作用更加明顯，但粉煤灰混凝土早期的粘聚性較差，應注意養護，以免失水產生龜裂；早強減水劑和緩凝減水劑都會使混凝土收縮值增加；膨脹劑只能補償混凝土部分收縮，同時受緩凝劑和粉煤灰的抑制，而且膨脹使混凝土的體積安定性增加了不確定因素，膨脹劑不是解決混凝土收縮裂縫的良方。Pansystolic murmurs begin with s1, extend throughout systole, and are characteristically uniform in intensity systolic ejection murmurs have been likened to the chug of a steam engine laboring up a hill, while pansystolic murmurs have been likened to the high - pitched wail of the engine ' s whistle
全收縮期雜音與s1同時開始，貫穿整個收縮期，它被比作蒸汽機爬山時發出的「嘎嚓」聲，全收縮期雜音則被比作蒸氣機氣笛的尖嘯聲。Creep analysis methods of high - rise buildings and large span buildings can only refer to creep coefficient method in bridge engineering or the method of degree of creep in hydraulic construction engineering under the present experiment conditions. in this paper, the incremental expressions of concrete creep and shrinkage strain when the initial computational age is not the same as the loading age are derived and corrected from the concept of concrete creep coefficient and the mean value theorem of integral and the principle of superposition. the differences of efficiency and accuracy of creep analysis between the finite element method with creep coefficient and the initial stress method with degree of creep are presented. this paper suggests that engineers should use the initial stress method with degree of creep to estimate the influences of creep on high - rise buildings and large span buildings on the basis of conceptual design
基於現有的試驗資料，高層及大跨度民用建築的徐變分析只能參照橋梁結構中的徐變系數方法或水工結構中的徐變度方法進行.從徐變系數的定義出發，利用積分中值定理和疊加原理，推導並修正了加載齡期與起算齡期不同時徐變收縮應變增量的表達式，對比了應用徐變系數分析徐變的有限元法和應用徐變度分析徐變的初應變法在效率和精度上的差別，並建議應從概念設計的角度出發，採用徐變度的初應變法來估算徐變對高層及大跨度民用建築的影響Abstract : creep analysis methods of high - rise buildings and large span buildings can only refer to creep coefficient method in bridge engineering or the method of degree of creep in hydraulic construction engineering under the present experiment conditions. in this paper, the incremental expressions of concrete creep and shrinkage strain when the initial computational age is not the same as the loading age are derived and corrected from the concept of concrete creep coefficient and the mean value theorem of integral and the principle of superposition. the differences of efficiency and accuracy of creep analysis between the finite element method with creep coefficient and the initial stress method with degree of creep are presented. this paper suggests that engineers should use the initial stress method with degree of creep to estimate the influences of creep on high - rise buildings and large span buildings on the basis of conceptual design
文摘:基於現有的試驗資料，高層及大跨度民用建築的徐變分析只能參照橋梁結構中的徐變系數方法或水工結構中的徐變度方法進行.從徐變系數的定義出發，利用積分中值定理和疊加原理，推導並修正了加載齡期與起算齡期不同時徐變收縮應變增量的表達式，對比了應用徐變系數分析徐變的有限元法和應用徐變度分析徐變的初應變法在效率和精度上的差別，並建議應從概念設計的角度出發，採用徐變度的初應變法來估算徐變對高層及大跨度民用建築的影響This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway
負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。Likewise, the stethoscope allows the examiner to detect mid systolic clicks in mitral valve prolapse and pericardial friction rubs
同樣聽診器有利於檢查者發現二尖瓣脫垂時收縮中期喀喇音和心包摩擦音。When the amount of powder is same, the finer the powder, the less the ratio of linear contraction ; at the same hydration, different fines of particle results in the different linear contraction regulation. in initial hydration, the ratio grows with the fines ; the less fines the fewer ratios. after that linear contraction of hpc gradually gets to the balance
高鈦礦渣的加入明顯降低混凝土的線收縮率，摻量相同時，礦渣細度的越細，高鈦渣混凝土線收縮率越小；相同齡期時，摻不同細度高鈦礦渣混凝土收縮28天內，高鈦礦渣混凝土收縮率與高鈦礦渣的細度幾乎成比例的增長，而後期收縮線比較平，說明後期的收縮基本達到平衡。By means of comparative experiments, this paper illustrates the influences of different cements, admixtures of flash - setting agents, water cement ratios, curing temperatures and raw materials on the performances of sprayed concrete, such as the setting time, strength and shrinkage ratio, on different conditions of efflorescence and hydration, so as to present references with regularity for the practical application of sprayed concrete
摘要通過對比試驗，闡明了不同水泥、不同速凝劑摻量、水灰比、養護溫度以及原材料在不同風化和水化程度條件下，對噴射混凝土凝結時間、強度、收縮率等性能的影響，以期為噴射混凝土的實際應用提供規律性的參考資料。The investment of commercial real estate development has real option characteristics, because the real option method can properly deal with uncertainty, irreversibility and flexibility. in this part, the author construct a framework for analyzing the real options of commercial real estate investment decision, and analyzes the real options of commercial real estate investment decision from confirming the problem solved, analyzing the uncertain source, distinguishing the key uncertain factor, discerning the type of real options, constructing the real options option model, calculating the value of the commercial real estate, checking the result of calculation and redesigning, finds that the commercial real estate development has postpone option, expansion option, shrink option, change option, give up option. it proves that the commercial real estate has management flexibility in the development item, and the flexibility give
由於實物期權方法可以很好地解決不確定性、不可逆性和靈活性，因而商業地產投資決策具有實物期權特性，同時從確定要解決的問題、分析不確定性的來源、鑒別關鍵的不確定性因素、識別實物期權類型、構建期權定價模型、計算項目價值、檢查計算結果和重新設計八個方面，構建了商業地產投資決策的實物期權分析框架，得出商業地產開發項目中通常存在推遲期權、擴張期權、收縮期權、轉換期權、放棄期權等期權類型，說明商業地產開發項目中具有管理和經營柔性，而這種柔性賦予了商業地產開發項目實物期權的特性。Concrete elastic modulus and concrete creep and shrinkage variety at different time are reckoned in by using time increment analysis method and concrete creep and shrinkage secondary force is calculated by using effective elastic modulus. bridge stability analysis program is developed on the base of structure matrix displacement method, the program adopts visual basic language, has friendly interface and visual data input windows. the buckling safety factor of currently finished structure is given as result
為計入混凝土彈性模量的變化及混凝土徐變收縮隨混凝土的齡期與外荷載加載時間不同而變化的影響，採用時間增量法對每個計算階段根據其階段內時步數進行循環，以計算時段內彈性應力、應變增量和徐變、收縮產生的應力應變增量，利用有效彈性模量法計算混凝土徐變收縮次內力，在此基礎上，結合結構矩陣位移法的基本理論編制開發了計入混凝土時效效應的高墩大跨徑橋梁穩定分析程序。Moreover, the results indicate that the curing condition of this type concrete is very strict and it is necessary to strengthen its early curing in water
同時，研究表明，超高強補償收縮混凝土對養護的要求極為苛刻。加強超高強混凝土的早期水養護尤其重要。Author also stressly calculates plane deformations of skew girder bridge due to the actions of the subordinate phase dead load, temperature changes, shrinkage and creep of concrete and vehicle loads in different places, and thereby analyses the characteristics of plane movement for the skew girder bridge
作者還著重對斜梁橋的二期恆載、混凝土收縮、徐變、溫度變化和不同位置汽車荷載作用下的平面變形進行計算分析，由此分析斜梁橋的爬移特點。The next this text is based on the appearance theories, according to the characteristics that the temperature dispersion of super thick mass concrete planceer of high - rise building primarily is an even difference in temperature and an even constringency, suppose the level shears are line with the displacement, adopting a big physical volume concrete of planceer in flexibility foundation for plank computing model, from theoretically deducing the difference in temperature of mass concrete contracting should basic formula of dint, and analysis the crack rule and the influence factor of mass concrete temperature contract, and bringing up the theory calculation method about temperature stress of mass concrete and the biggest whole method that sprinkle the length, at the same time according to basic formula of the temperature stress of mass concrete and the concrete construction experience, bringing five technique measures to prevent the temperature crack of mass concrete
其次本文以唯象理論為基礎，根據高層建築超厚底板大體積混凝土承受的溫差主要是均勻溫差和均勻收縮的特點，闡述了大體積混凝土溫度應力理論計算的簡化方法和最大整澆長度的計算方法，同時根據大體積混凝土溫度收縮應力基本公式和大體積混凝土結構施工經驗，提出了防止大體積混凝土溫度裂縫的五項技術措施。最後本文以廈門郵電大廈3 . 5m超厚底板施工為實例，從大體積混凝土溫度應力計算、混凝土保溫材料厚度計算、混凝土配合比的確定，鋼筋工程、模板工程、混凝土的泵送和澆築以及大體積混凝土內部溫度的監測和後期養護等方面進行了理論應用。Analysis of different treatment courses by propatenone on ventricular premature beats
普羅帕酮治療室性期前收縮不同療程的療效分析This thesis has made the contrast test of shrink and creep for plain concrete and concrete filled steel tubes on the basis of long term in - door test, obtains the principles of shrink - creep of concrete filled steel tube, simulates the test data, analyses and contrasts the coefficient of shrink and creep, thus offers reference for the calculation mode of creep, furthermore by introducing reasonable assuming at the same time, develops the calculation formula of equivalent elastic modulus at the same time, develops the calculation formula of equivalent elastic modulus, adopts common structure analyses procedure ansys to calculate the redistribution of section stress in the steel tube and concrete during operation
本文在長期的室內試驗的基礎上對素混凝土和鋼管混凝土做了收縮和徐變的對比試驗，得出鋼管混凝土的收縮徐變規律，對試驗數據進行了擬合，對鋼管混凝土的收縮和徐變系數進行了分析和比較，從而為鋼管混凝土的徐變計算模式提供參考，同時通過引入合理的假定，並結合由「齡期調整有效模量法」導出的混凝土徐變本構關系，推導出了鋼管核心混凝土考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用通用結構分析程序ansys對成橋后鋼管和混凝土應力重分佈進行了計算。Shanghai banghua packing machinery co. ltd is the property of shanghai sangke electromechanical machinery co. ltd. we specializes in designing and manufacturing the equipments of code printer series ， auto - shrinking machine series ， induction cap sealer series etc ， and also provides good quality and bargain packing materials
上海榜華包裝機械有限公司隸屬上海桑科機電設備成套工程有限公司，專業設計、製造日期批號噴碼打碼機；熱收縮包裝機；電磁感應鋁箔封口機；定量灌裝機、充填封口機等系列包裝產品，同時為企業提供質優價廉的包裝材料。The original emm is adjusted. the new emm not only retains the simple expression, but also has a satisfied precision for calculating the restraining stress of the scc walls. the shrinkage compensation coefficient y is proposed for quantitatively estimating the effectiveness of die expansion at early age compensating the shrinkage at later stage
基於以上認識，修正了原有的等效模量法，將總約束應力表示為早期膨脹和後期收縮兩個單調變形過程引起的分項應力之和，在保留其簡單形式的同時，使之在容許誤差下，適用於補償收縮混凝土墻的約束應力計算。On one hand, the stress in mass concrete is caused because of the difference between internal temperature and external one. on the other hand, with the concrete solidifying, the tensile stress will appear due to concrete ' s shrinkage restrained by base rock
大體積混凝土一方面由於內外溫差而產生應力，另一方面，由於混凝土的凝固，收縮變形受到約束，混凝土會產生拉應力，一旦溫差引起的應力和收縮變形引起的應力超過同齡期混凝土的極限抗拉強度，混凝土就會產生裂縫。Shep cooperative research group. prevention of stroke by antihypertensive drug treatment in older persons with isolated systolic hypertension : final results of the systolic hypertension in the elderly program ( shep ) [ j ]. jama, 1991, 265 ( 24 ) : 3255
覃天錦，王同成.老年單純收縮期高血壓患者脈壓增大的機制、意義和治療進展[ j ] .中國心血管病研究雜志， 2006 ， 10 （ 4 ） : 784Our recent work also suggest that simulated microgravity may induce the contractile proteins in the arterial vessles to be changed differentially. therefore, in the second part of the present work the alterations of a - sm - actin and calponin were observed by immunohistochemistry and western blotting. the major findings of the present work are as follows : 1
此外，我們的前期工作還提示，不同部位動脈血管平滑肌的收縮蛋白在模擬失重下也可能出現分化性變化，故本工作也用免疫組化及westem印跡分析方法對模擬失重大鼠血管的-平滑肌肌動蛋白（ - sm - actin ）及調寧蛋白（ calponin ）表達變化進行了觀察。分享友人