curvature difference 中文意思是什麼
curvature difference
解釋
曲率差- curvature : n. 1. 彎曲（部分）。2. 【數學】曲率，曲度。
- difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
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In accordance with the main contradictions between high deterioration degree of coal and low permeability of coal bed, this paper predicts high permeability region by use of new technique and methods including stress field, curvature analysis and major stress difference analysis
針對沁水盆地煤變質程度高、煤層滲透率普遍較低的主要矛盾，利用新技術、新方法，利用應力場、曲率分析方法和主應力差分析方法預測高滲區。 -
It studies and puts forward the flexibility difference curvature method, and many simulated damage examples show that the method has notable advantages such as high damage identification sensitivity, strong reliability, and visualization and simplicity in amount and graph analysis
本文研究並提出了柔度差值曲率法，多個模擬損傷實例說明該方法具有損傷識別靈敏度高、可靠性強、數值和圖形分析直觀簡便的顯著優點。 -
In the procedure, the column is first divided into a finite number of small segments in equal length. the deflection - curvature relation of each segment is determined using the finite - difference method. the final nonlinear algebraic equations are then obtained by means of the equilibrium condition for each segment
運用這種方法，先將長柱離散成若干等長的柱段，利用差分方法求得各柱段截面上的撓度與曲率的關系，再根據各截面上外力與抵抗力的平衡條件，得到一組關于荷載與變形關系的非線性代數方程組；本文對該方程組採用載荷增量法進行迭代求解。 -
In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll
研究表明：在某些頻率范圍內相關水動力系數基本不隨吃水變化，只有超過某一頻率后水動力系數的值才會出現差異；在橫搖方向，水動力系數並沒有隨著吃水的變化發生規則變化，而是出現了波動現象；近船首剖面的水動力系數計算表明，水動力系數的波動非常大，並遠遠偏離了平均位置的水動力系數值，值的變化速率也不盡相同，總的看來，上振幅曲線曲率較大，變化較快，下振幅曲線曲率較小，變化較慢；外飄力和波面運動的速度的平方項有關，導致其振動頻率和相應運動方向的頻率不同；外飄力使升沉向下運動的幅值減小；船速對三個計算量的峰值影響甚微，但對振動頻率有明顯影響；波幅對船舶運動的影響是明顯的，船舶運動的幅值基本上和波幅成線性關系。 -
Second, the mode fields of a strip waveguide and some slab waveguides have been simulated by applying finite - difference time - domain ( fdtd ) method. the curvature radius ; vicinity coupling ; transition loss and power attenuation of a s - shape bend waveguide have been analysed numerically by employing wide angle finite - difference beam propagation method ( fd - bpm ), as well as the coupling loss of optical fiber and waveguide. in addition, the framework of the s - shape waveguide laser has been
其次，應用時域有限差分法，結合波導模式理論對條形與平面波導進行了模場模擬;應用廣角有限差分光束傳播法，對s形彎曲波導的曲率半徑、鄰近耦合、過渡損耗、功率衰減以及波導與光纖的各種耦合損耗進行了數值分析，並在此基礎上，對s形波導激光器的結構作了初步設計。 -
It can be concluded that the performance differences between the plate membrane and the hollow fiber membrane can be attribute to difference of the stresses in the membranes when they were under pressure and the difference of the strain caused in the membrane, besides the possible reason that the surface curvature difference between a plate substrate and a hollow fiber one may cause structure difference in the dense functional layer when coating. the stresses in a hollow fiber composite membrane under an outside pressure are quite different from that in a plate one in that they exert on the hollow fiber in both the radial and circular directions, and the compress strain of the hollow fiber is thus much more complex, which may cause the top layer crinkle and a decreased salt rejection
分析認為造成平板復合膜（ ）和中空纖維復合膜（ ）性能差異的主要原因，除了平板基膜與中空纖維基膜因表面曲率不同可能引起在塗覆時形成的緻密功能層結構上的差異之外，由於中空纖維膜受外壓時，膜內部承受的應力形式與平板膜不同，會同時在徑向（膜厚度方向）和環向（膜面內方向）兩個方向產生壓應力，因此，所發生的形變也較為復雜，可能造成表面復合層的起皺或脫落，引起脫鹽率下降。 -
It elaborates the contents and requirements of the technique means of fault diagnosis and damage identification for structure, and the present research and application of damage identification for structure with vibration diagnosis technique ; based on the modal parameters, it discusses the theory and technique of the damage identification for structure with the flexibility difference method and curvature modal method, then present the idea of damage identification for structure with flexibility difference curvature method
本文闡述了結構故障診斷的技術手段、結構損傷識別技術的內容與要求，應用振動診斷方法進行結構損傷識別的技術研究與應用現狀；論述了基於模態參數，用柔度差值法、曲率模態法進行結構損傷識別的理論與方法，進而提出了柔度差值曲率法進行結構損傷識別的思想與方法。 -
In this paper, a precise cmos bandgap voltage reference which uses the difference of mos source - gate voltage to perform efficient curvature compensation is described in detail, which is compatible with standard digital cmos process
論文詳細描述了一個運用標準數字cmos工藝實現的、採用mos管的柵源電壓差進行有效的溫度曲率補償的帶隙基準電壓源電路的設計。 -
The use of the batten interpolation for modal parameter in the curvature modal and flexibility difference curvature method can solve the contradiction between decreasing measure points and the guarantee of identification precision ; the identification program has also been developed in matlab : as long as the former 3 step vibration shape and frequency are input, the value and the graphic representation of damage identification will be obtained by flexibility difference curvature method
本文應用曲率模態法、柔度差值曲率法當中，對模態參數用樣條插值，較好地解決了減少測點與保證識別精度的矛盾；在matlab軟體中開發了識別程序：只需輸入前三階振型和頻率，即可由柔度差值曲率法給出損傷識別的圖示與數值結果。 -
This paper puts forward a kind of fast and effective method of muting value based on the curvature formula, and it can automatically discern mutating data using half two rank difference method and get rid of the false data
該方法以曲線的曲率公式為理論基礎，用相鄰點間的半二階差分對突變點進行自動識別，並將其剔除。 -
The application of the three damage identification techniques above for simple supported beams and cantilever beams confirm that vague or wrong location will occur in the damage location method based on flexibility difference, and the curvature modal method need not rely on the structural parameter before the damage, but has the hidden trouble of vague location for small damage
將以上三種損傷識別技術應用於簡支梁、懸臂梁的模擬損傷識別，證實了基於柔度差值的損傷定位方法存在模糊或者錯誤定位的問題，曲率模態法可以不依賴損傷前的結構參數，但對于小損傷也存在模糊定位的隱患。 -
( 2 ) there is no difference between the two groups in the positive of sciatica, spine curvature, lumber spine tenderness, sensation abnormality
（ 2 ）兩組間的下列指標差別無統計學意義:坐骨神經痛、脊柱側彎、腰椎壓痛、感覺異常。
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