集合強度 的英文怎麼說
中文拼音 [jígěqiángdù]
集合強度
英文
composite strength-
The coupling admixes the particle and collective degrees of freedom in such a manner as to partially transfer the one-particle transition strength onto the collective modes.
耦合使粒子和集體自由度按這樣的方式混合,即使單粒子躍遷強度部分地轉變到集體模式中。The competition among those species like s. tsinyunensis, dryopteris erythrosora and veronicastrum stenostachyum etc., is intense in the communities, which may be one of the reasons why s. tsinyunensis is going to be endangered and with a very restricted distribution. the distribution patterns of the seven populations of s. tsinyunensis are clumped among the eight populations we studied, except population v of random distribution. the spatial pattern of 6 populations of s. tsinyunensis have high consistency with the negative binominal distribution, while another 2 populations, i. e., i and iii are poisson distributions
6 )縉雲黃芩各種群空間分佈格局基本呈聚集分佈,其中7個種群的分佈格局類型是聚集分佈,其聚集強度較高,另有一個種群為隨機分佈;其種群的離散分佈擬合結果也嚴格符合一定的數學模式,其中負二項分佈、 poisson分佈分別是該物種種群空間分佈的理論分佈模式,其中6個種群擬合出的結果是負二項分佈,種群i和種群m擬合出的結果是poisson分佈。Some other defects in castings are well - defined cracks and hot tears that develop during solidification, under combination of stress concentration from uneven contraction and the metal ' s low strength at near - melting temperatures
鑄件內部的其它一些缺點是,凝固過程中,在不均勻收縮造成的應力集中和接近熔點溫度下金屬的低強度的綜合作用下,出現的清晰裂縫和熱撕裂。For the 30. 2mm shaft, there are still larger over measure to load. the strength is increased by optimization. for ? 17. 4mm shaft, the strength is increased by enlarge the inner dimension of the spline ; for 30. 2mm shaft, the strength is increased by adjust the structure at the boundary between the key groove and the ring groove, the highest stress of the shaft is at bottom and terminal of the spline after optimization
其中對17 . 4mm泵軸的優化,通過增大花鍵內徑,提高了花鍵齒底的強度,降低了應力集中點附近的應力;對30 . 2mm電機軸的優化,通過在軸承鍵的環槽端增加倒角,有效降低了該位置的應力集中,使軸的最大應力點從軸承鍵與環槽的交界處轉變到花鍵根部與收尾的交界處,提高了電機軸整體結構強度的合理性。In this research, the lime - fly - ash bound macadam was joined with steel fibers, glass fibers and polypropylene fibers with the contents of the lime, the fly ash and the macadam fixed in lab tests. the study focuses mainly on the split strength, compression strength, and modulus of compressive resilience and shrinkage property of the lime - fly - ash bound macadam enhanced by different kinds of fibers. based on the test, a detail theoretical analysis was made on the relation of mechanical property, dry shr inkage with the variety and the quantity of fibers, applying the theories of strength, dry shrinkage and the methods of statistics, curve mimesis and variance analysis
本論文主要是研究在同一種二灰碎石混合料(石灰、粉煤灰、集料的含量及比例相同)中分別摻入不同數量的鋼纖維、玻璃纖維、聚丙烯纖維,通過室內試驗對其抗拉強度、抗壓強度、抗壓回彈模量和乾燥收縮性能與纖維摻量和纖維品種之間的關系加以分析和研究,並在此基礎上根據二灰碎石強度形成機理、乾燥收縮機理和數理統計、曲線擬合、方差分析的方法分析纖維品種和纖維數量對二灰碎石的力學性能和乾燥收縮性能的影響,最後得出纖維對二灰碎石的強度、抗壓回彈模量、乾燥收縮有很顯著的影響,並提出了相應的建議。The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore
第一章回顧了孔結構在當今國內外的研究現狀,包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀,介紹了孔結構研究方面的一些最重要的成果;第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理,並討論了水泥基多孔材料孔隙分析中常用的表徵參數,也說明了壓汞法測孔對研究結果的影響因素,指出了壓汞法在孔結構研究中的局限性;第三章是著重分析了孔隙率與強度關系模型的發展歷程,並對已有的模型進行了比較分析,指出了原有模型的不足之處;第四章在「綜合集成」的基礎上,提出了混凝土孔結構復合體模型和孔系統的物理模型,並模擬了該模型下由各單體並聯形成的復合體的斷裂過程,最後根據所建模型編制了相應的計算程序,可根據輸入的孔徑分佈與水泥含量等參數,實現混凝土理論強度的計算;第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析,根據回歸分析的方法得到了反映基體強度特徵的k值,並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響,檢驗模型的正確性;第六章是結論與展望,根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。The conventional methods for mining such seams including the longwall blasting and block caving suffer form the drawbacks of being low in recovery, high in labor intensity and low in efficiency. after shifting to the use of the fully - mechanized extraction system by the zhaogezhuang branch mining industry co. of kailuan ( group ) co., the mining of the pitching seams has met with remarkbable social and economic result
針對大傾角煤層長壁炮采、落垛等採煤方法,存在回採率較低、員工勞動強度大、高產高效受限及安全等諸多問題,開灤(集團)趙各莊礦業分公司在探討大傾角煤層採煤工藝的改革及實踐大傾角煤層綜合機械化採煤過程中,取得了較好的社會經濟效益。A study on bonding strength of hybrid integrated circuits
功率混合集成電路鍵合強度控制研究The result indicates that in the case of constant content of asphalt, marshall stability, compression strength, rupture strength, compression modulus and rupture modulus of cement emulsified asphalt concrete would increase along with the increase in cement content ; in the case of constant content of cement, these index values would decrease along with the increase in asphalt content ; while with the increase of coarse aggregate, rupture strength and rupture modulus of the concrete would increase conspicuously, yet compression strength and compression modulus would have a little change
試驗結果表明:在乳化瀝青含量不變時,隨著水泥用量的增加水泥乳化瀝青混凝土的馬歇爾穩定度、抗壓強度、抗折強度、抗壓回彈模量、抗折回彈模量隨之增加;在水泥用量不變時,隨著乳化瀝青用量的增加相應的力學指標呈降低趨勢;礦料級配中粗集料含量增加后,混合料的抗折強度和抗折回彈模量有明顯增加,但抗壓強度和抗壓回彈模量變化不大。Moreover, the main components of h mineral admixture is procured from industry waste, and its " production procedure is simple, so its " production cost is very low. the most tightness pile up theory and rheology is successfully applied in the designation of self - compacting concrete, and the factors such as sand rate, aggregate grading, paste content and mineral admixtures are been studied. under the guidance of mix design theory and on the basis of mass experiments, c20 - c80 high performance self - compacting concrete is been produced
將最緊密堆積原理和流變學原理相結合,運用於免振搗混凝土配合比設計之中,系統地研究了砂率、集料級配、水泥漿量、礦物摻合料等因素對免振搗混凝土物理力學性能、工作性能、耐久性能的影響,成功配製出從c20 - c80及以上強度等級的高性能免振搗混凝土。What banker applies at most is tall open quotation, amount of gather contest price is very large, but share price rushs on the powerful momentum for afterwards eve hard, turn around downward, to the limit of one ' s capacity drops broken all valence, although dish in your writing accepts the order, but share price goes cast apparent be enslaved to be enslaved to all of valence press instead, point of price of before one day of closing quotation also does not have a bit resistance, all the speed of price be issued to lower levels and share price keep basically consistent, because be banker concentration, shipment causes
莊家運用得最多的是高開盤,集合競價量很大,但股價難以為繼前日的強勁勢頭上沖,掉頭向下,放量跌破均價,雖然盤中有大筆接單,但股價走拋明顯受制於均價的反壓,前一日收盤價處也沒有絲毫反抗力,均價下行的速度與股價基本保持一致,因為是莊家集中出貨造成的。The ultimate longitudinal strength of container ships was analyzed by a simplified method
摘要用簡化方法對集裝箱船進行了垂向彎矩和水平彎矩聯合作用下的極限強度分析。The oil loading system and the management of oil bin in the oil - bin area is intensive and the measurement method is under - developed at present time. in order to resolve this problem and realize the automatic management, this thesis analyzed the demands of the system, and then integrated the optical fiber sensing technology, the advanced computer technologies of hardware and software, the technologies of intelligent instrument, auto - control and communication ; finally a distributed and intelligent monitoring system of the automatic oil - loading system was developed. the thesis contains hardware design, software design and communication design
為了解決罐區裝車手動付油與油罐手工檢尺測量勞動強度大,方法落後以及油庫安全性要求非常高的問題,提高油庫自動化和信息化管理水平,本文從監控系統用戶需求與功能分析入手,結合當前飛速發展的光纖傳感技術、計算機軟體、硬體技術、智能儀表技術、自動控制技術和通訊技術,開發了一套用於石化行業的基於光纖傳感技術的集自動付油管理及儲油液位、溫度等安全檢測功能於一體的油罐庫區自動付油管理系統。Statistical characteristic of fatigue strength of contact wires was obtained by comprehensively considering such coefficients as stress concentration, size and surface quality
綜合考慮了接觸線應力集中系數、尺寸系數、表面質量系數和材料疲勞強度的影響,得到了接觸線疲勞極限的統計特徵。This paper gives a brief introduction of the formation mechanism of sma and the handing property of pavement from the aspects of theory and research. at the same time, this paper also studies the effect of aggregate size on road - related performance in some different grads. except, it also having inspected to use the sbs, the pe and the combination material of sbs and pe to analyze the influence to the function of material road
瀝青瑪蹄脂碎石混合料( sma )以其溫度穩定性好、抗滑性能優良、低噪音、使用耐久等優點在公路建設中越來越受到重視,本文對sma組成特點,強度形成機理與路面使用性能從理論和試驗研究角度進行論述,並針對不同級配的瀝青瑪蹄脂碎石混合料,分析了粗、細集料的粒徑變化對其路用性能的影響,同時也考察了用sbs 、 pe 、 sbs和pe復合改性后的瀝青結合料對混合料的路用性能影響。The results of numerical calculation show no stress concentration occurred, and the high stress regions are converted into the deep areas after applying coupling support scheme
計算機模擬結果顯示,巷道實施耦合支護方案后,應力集中程度減小,高應力區向深部圍巖轉移,支護系統可靠性明顯增強。The scc has the following advantages : remarkably reducing the noisy pollution and the worker s labor intensity in construction, deducing the rough surface or segregation because of missing - vibration or excessive - vibration in conventional construction, resolving the quality - defect problems resulting from lacking - vibration in the section of complex shapes and densely - packed reinforcement area. at the same time, large of industrial solid waste such as fly ash and blast furnace slag is utilized in the proportioning of scc. it is helpful in comprehensive utilization of resource and environment protection, so the scc belongs to " green concrete ", it is a branch of hpc which will be developed in the future
這種混凝土可以顯著降低混凝土施工中的噪音污染;大幅度減輕工人的勞動強度;減少傳統混凝土施工中因漏振或過振造成的麻面或離析;解決了配筋密集、結構復雜部位因振搗不足而造成的質量缺陷問題;同時,由於自密實混凝土在配製中,大量利用粉煤灰、高爐礦渣等工業固體廢棄物,有利於資源的綜合利用和生態環境的保護;從而被譽為「綠色混凝土」 ,是未來混凝土向高性能發展的方向之一。In this paper, a series of surveys on road condition, pavement - performance and destroy reason are analyzed, soil property, hydrologic regime are combined, modulus of resilience are confirmed on heavy compaction test, foundation classification in area of qinhuangdao is divided into 3 grades and highway is divided into 3 districts according to the principle that different soil grades produce the same effect on thickness of base course or bottom course, classification of traffic is divided into 4 grades after observation materials of traffic volumes are collected extensively, traffic characters and parameters are analyzed
本課題在對現有路面結構狀況和使用狀況進行調查,並對路面使用性能和破壞原因進行分析的基礎上,結合秦皇島地區的土質、水文條件,確定重型擊實標準條件下土基回彈模量值,依據不同等級土基對路面基層或底基層的厚度產生大致相同效應的原則,將秦皇島地區地基強度等級劃分為三級並將本地區公路分成三個區。在廣泛收集交通量及組成的觀測資料,了解交通特性,進行交通參數分析后將交通量等級劃分為四級。The research results show that aggregate gradation and the nominal maximum aggregate size evidently influence the shear resistance of asphalt mixture ; aggregate flakiness content influences the shear resistance of asphalt mixture, and with the increase of aggregate flakiness content the shear resistance of asphalt mixture decreases ; asphalt binder properties, especially penetration, softening point and viscosity influence the shear resistance of asphalt mixture, and the latter increases with the decrease of penetration and the increase of softening point and viscosity ; asphalt content influences shear resistance of asphalt mixture, and with the increase of binder / aggregate ratio the shear resistance of asphalt mixture decreases ; air void influences shear resistance of asphalt mixture, and usually with the increase of air void the shear resistance of asphalt mixture decreases ; homogeneity does not have a direct and obvious relationship with absolute value of shear resistance of asphalt mixture, but does with variation of shear resistance of asphalt mixture
研究結果表明:集料級配和公稱最大集料粒徑對瀝青混合料抗剪強度有顯著的影響;瀝青混合料抗剪強度受其集料中針片狀含量的影響較大,集料中針片狀含量增大,瀝青混合料抗剪強度減小;結合料的性質,特別是針入度、軟化點和粘度對瀝青混合料抗剪強度有較大的影響,隨著針入度減小,軟化點和粘度增大,瀝青混合料抗剪強度增大;含油量對瀝青混合料抗剪強度有較大影響,隨著油石比的增大,瀝青混合料抗剪強度減小;瀝青混合料抗剪強度受其空隙率的影響較大,一般隨著空隙率的增大,其抗剪強度減小;瀝青混合料均勻性與瀝青混合料抗剪強度絕對數值間沒有明顯的關聯,而與數值間的變異性有著很好的相關性。Thermal and welding residual stress often produces in the proceeding of the electronic package, the residual stress release and thermal deformations of the microelectronics will reduce the assemble intensity between the chip and package, and then debase the electrical performance of the assemble circuit, numerous thermal cycling will lead to thermal fatigue or thermal failure of the microelectronics
電子封裝器件在生產的工藝過程中,往往會產生熱殘余應力以及焊接殘余應力,殘余應力的釋放作用及器件在使用過程中的熱變形,會降低集成電路晶元與封裝體的結合強度,進而降低集成電路的電性能,反復的熱循環,將導致器件的熱疲勞失效,嚴重時可導致矽片或陶瓷片破裂,使整個器件遭到破壞。分享友人