力學類 的英文怎麼說
中文拼音 [lìxuélèi]
力學類
英文
sciences of mechenics-
The reservoir - formed dynamic system could be divided into lower self - source enclosed type, middle allo - source to self - source semi - full enclosed type and upper allo - source semi - open enclosed one
成藏動力學系統可分為下部自源封閉、中部它源-自源半封閉-封閉及頂部它源開放-半封閉三種類型。Abstract : for analyzing the residual stress distributing state within the weld joint, and its effect on the performance of welding structure, when welding the ferrite pearlite steel with the austenite steel, this paper develops a finite element program to compute the interface stress of two or over two material. finally, this program is used to analyze the mechanical behavior of heterogenic joint
文摘:為了分析鐵素體、珠光體類鋼與奧氏體類鋼焊接時，焊接接頭處焊接殘余應力的分佈狀態及其對焊接構件性能的影響，研製了可計算兩種或兩種以上材料界面應力的有限元程序，並用此程序分析了異質接頭的力學行為。The category, design and guidelines of highway barriers were then described, and dynamics of occupant and injury biomechanics were also discussed. it was found that the most frequently injured body segments during a car - barrier crash are head and thorax, and their injury mechanisms were pointed out
然後，文章對高速公路護欄的種類、設計方法和設計準則等方面進行了全面討論，同時論述了碰撞過程中乘員的生物力學響應，指出了在轎車-高速公路護欄碰撞中致使乘員受傷最為嚴重的部位和原因。In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後，對巖土工程領域至今尚未解決，甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討，提出了考慮地基變形的地基承載力上程計算方法；對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎（空間問題）的承載力界限荷載p _ （ 1 / 4 ） ，並與國內外土力學專著及地基基礎設計規范中的條形基礎（平面問題）的界限荷載p _ （ 1 / 4 ） ，進行了對比，從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況；根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作，本文以截頭錐模型模擬地基，對地基（巖基）承載力的動測法進行了研究，為各類地基（包括巖基） ，匯總了動力分析和檢測川的參數：針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題，從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論；本文作者根據多年現場載荷試驗的工程實踐，對深井荷試驗裝置的核心部分? ?反力裝置，設計了側壁支撐反力加載系統，該加載系統具有實用、簡便、穩定及安個等優點。This research work on bird striking has a long history and already got plentiful achievemellts in theories and experiments, howevef, still a long way no doubt waits to go for sophisticated research work on it more detailed to apply to airframe engineering quantitatively in combination wth the technical reformation of the birdstrike experimelltal system in our laboratory, this thesis deeply studies and analyses the numerica1 computation and simulation methods to birdstrike dynamic response problem based on finite - elemefit - method ( fem ) numerical emulation and modem large - scale scientfic computation software
本文結合我公司鳥撞實驗體系技術改造項目，應用有限元數值計算模擬技術及現代大型科學計算工具，對鳥體撞擊飛機風擋結構的動力學響應問題進行了系統學習與研究探討，初步掌握了科學計算方法，獲得了計算模擬的實踐經驗，為今後深入應用大型科學計算手段進行撞擊類科學問題的研究以及深入應用於工程實踐奠定了強有力的工作基礎。Because of its extensive application and underdeveloped research level in our country, this paper establish the numerical model of blank cartridge ejecting device, the whole process from blank cartridge burning to eject missile is analyzed by classic interior ballistic theory and gas dynamics. several simulation examples are given, and the effect of different parameter structure on ejecting device is discussed
鑒于這類系統在我國的廣泛應用與相對滯后的研究水平，本文針對三種類型五種型號的掛彈鉤建立了拋放彈彈射機構的數學物理計算模型，用經典內彈道和氣體動力學理論分析了火藥彈燃燒到彈射活塞完全推離懸掛物的整個過程。( 2 ) the gravitational toy model in canonical ensemble is also studied under the regime of generalized statistical mechanics. we find that a region of negative specific heat describing the character of gravity also exists in canonical ensemble, which is remarkably distinguished from the result of traditional statistical mechanics that the specific heat must be positive in that ensemble, implying that the gravitating system may also be described by canonical one
（ 2 ）在正則系綜中，我們同樣根據廣義統計力學對引力toy模型進行了研究，發現也會出現類似於微正則系綜中的負比熱現象，這明顯區別于傳統的統計力學中比熱必須非負的結論，從而得出在tsalllis統計下正則系綜也可以描述引力系統的結論。There are abundant and complicated dynamical behaviors in the rotor - ambs system, such as the local and global bifurcations and the chaotic dynamics
在這類系統中含有極其豐富和復雜的動力學行為，如分叉、分形和混沌動力學等。Two concepts of critical length of slope and maximum buckling place is defined here to evaluate its stability. applications of two practical projects demonstrate this method ' s accuracy and feasibility. at the same time, all the factors which maybe infect the slope ' s stability, such as the mechanical performance of joint and rock, physical and geometrical character of slope, are considered
並以兩個實際工程實例驗證了本文方法的精確性及可行性；與此同時，本文對各影響因素如結構面的力學特性、巖體的力學特性及坡體的一些物理幾何特徵對該類邊坡穩定性的影響作了分析。Study on kinetics of hydrocarbon chloride as an extractant for furfural
鹵代烴類溶劑萃取糠醛動力學研究Having carried on the direction and in - situ observation research for the fish migratory behavior, swimming mechanics and ecology, etc ; using the light, sound, electricity, colour gas and various physical agents to improve the fish passage speed in the fishway
對魚類的洄遊習性、游泳力學及生態學等問題，進行了定向和原體觀測研究，並用光、聲、電、色、氣等各種物理因素提高魚道的過魚效果。When the field is slowly - varying, the scalar field potential acts like a cosmological constant. in addition to the quintessence models, many other theories for dark energy have been proposed, including models based on super - symmetric gauge theories, super - gravity, small extra dimensions, large extra dimensions, quantum field theory effects in curved space - time. all these models are essentially based on the existence of a mass less scalar field acting at a cosmic scale
除了真空場模型外，科學家亦提出其他解釋黑暗能量的理論，這些模型建基於不同的物理理論或假設，例如超對稱規范理論超重力增加一些小或大的空間維數量子力學在彎曲時空的影響等等，這些理論模型，返本溯源，其實背後都假設存在著一個特性類似於宇宙常數的無質量純量場。Long - term effect of different antihypertensive agents on renal hemodynamics
不同類型降壓藥物對腎內血流動力學長期影響的研究By physiognomy feature, it could be divided into three types of thermal structure : positive dome model, negative collapse model and border dome core collapse model. based on the depth degree or magma - thermal influenced, it could be divided into five types of thermal structure : ( ancient ) geothermal anomaly focus region model, superficial volcano eruption hydro - thermalism and hypabyssal intrusive model, thermal anticline ( thermal dome ) model, mid - deep intrusive model, deep mantle ( crust ) thermal plume model ; and put forward a perfect model of the thermal structure. there are many interaction system could be induced into a systematic thermal interaction, include : ocean - continent system, basin - mountain interaction, superficial and mid - deep crust - mantle interaction, crust - mantle commingle interaction, vertical thermal interaction ( delamination ) etc.
依據地貌形態分為三類：正向穹窿型、負向塌陷型、邊隆核陷型：依據巖漿-熱力作用影響的深淺程度或深度分為五類： （古）地熱異常群集區、表淺層火山噴發-熱液活動與淺成侵入型、熱力背斜（熱穹窿） 、中深層侵入型、深部地幔（地殼）熱柱型；提出了熱力構造作用空間分佈的理想模式，將洋陸系統、盆山作用、淺表與中深部殼幔作用、殼幔混合、垂向熱力作用（拆沉）等納入一個整體統一的熱力作用系統中，為盆地動力學研究打開了一個新窗口；研討了熱力構造研究方法。The mechanical index or parameters of rock is similar to those of other materials, they are understood and accepted easily. however geostress is one inner stress stored up in rock mass, it isn " t rock - mass " inhesion characteristics like mechanical index, but it is a mechanical state in rock masses. the stress state is generally different in similar engineering rock mass but in different space
巖石的力學性質和指標，類同其它材料的力學性質和指標，容易被人們認識和接受；而地應力是蓄存在巖體內部的一種內應力，並不是巖體的一種固有特性，而是巖體中存在的一種力學狀態，同類巖體的地應力狀態因地而異。Poly ( lactic acid ) tissue engineering scaffolds are the most potential materials for exploiture and application in medicine at present with their innocuity, easy process, biodegradability and biocompatibility
摘要聚乳酸無毒、易加工、可生物降解、生物相容性好，是目前醫學界作為組織工程支架最有開發和應用潛力一類材料。Objective the similarities of masticatory muscles and teeth orientations between miniature pigs and human beings were studied in order to evaluate the use of miniature pigs in oral biomechanics research
目的探討小型豬咀嚼肌及牙長軸方向與人類的相似性，以利其在口腔生物力學研究中的應用。Using the thermodynamic conditions describing the coexistence of two phases and the stability conditions of equilibrium state, we have calculated the normalized temperature and the normalized pressure of the triple point ( t1, p1 ), the melting curve, vapouring curve and the sublimation curve. the whole phase diagram of the 2d monatomic l - j system is obtained
和杜宜瑾等人的方法類似，我們先給出了系統在相變點時的一些參數的數值，在此基礎上，考慮占據率q的因素，利用相平衡的熱力學條件及平衡態的穩定性條件，得到了二維單元l - j系統的熔化曲線、汽化曲線、升華曲線以及三相點的位置，從而給出了該系統的完整的三相圖。Through indoor routine tests, the physical and mechanical natures of intact and remolding soil of muck and mucky soil, in fuzhou, are analyzed in this thesis. the results reveal that water content, void ratio, shear strength of remolding soil samples are lower than those of intact samples. then qualitative analysis on the mineral composition, chemical composition and microstructure characteristic and types of the soft clay is given
本文通過室內常規試驗對福州地區淤泥及淤泥質粘土的原狀土樣和擾動土樣的物理力學性質進行了分析，觀察土樣受擾動后一些物理力學指標的變化情況，發現擾動軟粘土樣的含水量、孔隙比、抗剪強度指標均比原狀土樣低；並從軟粘土的礦物成份、化學成份以及微觀結構特徵和類型上定性地分析。The propagation of ultrashort laser pulse in air is analyzed with mechanics analogy by considering kerr effects and free electron defocusing. the equation describing the evolution of the laser spot is derived. it is shown that long distance focusing requires large initial beam and the propagation distance is very sensitive to the initial divergence angle of the laser beam
考慮多光子電離效應和光學kerr效應，首次利用力學類比的方法研究了超短脈沖激光在電離氣體中的傳輸，詳細分析了傳輸距離與激光初始光斑、初始發散角以及激光功率的關系，提出了實現長距離傳輸的條件。分享友人