lower approach 中文意思是什麼
lower approach
解釋
下游引航道-
High - mg volcanic rocks approach the primitive mantle compositions, and their magmatic source is close to the composition of bse, derives from the lower mantle and formed by this type - mantle rocks " fractional melting highly ( > 25 % ). high - mg volcanic magma, formed in the axis of the emei mantle plume, underwent the crystallization differentiation of olivines and some pyroxenes ; some olivines reflect fair cumulus crystallization
高鎂火山巖接近於原始巖漿的組成，巖漿源區與地球平均成分bse的成分特徵相近，起源深度為下地幔，為該地幔巖較高程度的部分熔融（ 25 ）而形成的。高鎂火山巖處于地幔柱的軸部，經歷了橄欖石及一定程度的輝石分異結晶，並且橄欖石顯示出一定的堆晶作用。 -
Among antihypertensive measures, blockade of the raas by means of ace inhibitors or angiotensin ii receptor antagonists recently emerged as a potentially polyvalent approach, not only for treating hypertension and reducing cardiovascular events, but also to prevent or reduce albuminuria, counteract diabetic nephropathy and lower the occurrence of new type 2 diabetes in individuals at risk
在抗高血壓藥物治療中，通過用ace抑制劑或血管緊張素受體拮抗劑可阻滯腎素-血管緊張素-醛固酮系統激活，最近其可作為一種潛在多能的治療方法，不僅可治療高血壓和減少心血管事件，也能夠預防或減少蛋白尿，阻止糖尿病性腎病變，並使新糖尿病患者發生風險性降得更低。 -
Monotone iteration method and upper and lower solutions were used to approach to the solution of the first - order integral boundary value problem on time scales form below and above by monotone convergent sequence
摘要運用單調迭代方法和上下解方法構造了兩個單調序列，從上下兩個方向分別收斂到一階積分邊值問題。 -
The research fruit and software in this paper is strongly applicable to practical engineer, and its highly intelligent optimization and diagnosis ability provide high effective approach for lower noise tyre designing and production
本文的研究成果和程序具有較強的工程實用性，其高度的智能化優化和診斷功能為低噪聲輪胎設計和生產提供了強有力的高效方法與路徑。 -
Should the lower end of the range of volumes actually occur then the need and capacity of the approach roads would have to be reviewed
假若出現較低的交通量，則須就引路的需要和負荷量作出檢討。 -
The conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions
常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振 -
Abstract : the conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions
文摘:常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振 -
However, this approach is faced with two key challenges. first is the keen competition from fast emerging ports in southern china, in particular the prd region, which has been assessed in the latest round of the study on port cargo forecasts. one of the conclusions of the study was that although neighbouring ports offer lower monetary costs, ours has the advantages in terms of high frequency of callings, extremely efficient operation and associated logistics services
首先是華南一帶的港口，近年冒升之勢甚速，儼然成為香港的強大競爭對手，其中尤以珠江三角洲的港口為甚；我們已透過最新的港口貨運量預測研究，分析這趨勢對我們的影響；研究結論指出，雖然珠江三角洲港口收費低廉，但香港卻在頻密的船期，作業迅速有效，以及物流增值服務上，較鄰近港口優勝。 -
The approach of the anchoring length of the beam ' s lower longithdinal reinforaing steel bars in the reinforced concrete frame nodes undler earthqnake loads
在地震作用下鋼筋砼框架節點梁下縱筋錨固長度探討 -
Dogs usually use high - pitched single barks when they are separated from their owners and a lower, harsher superbark when strangers approach or the doorbell rings, according to sophia yin, an animal behaviorist at the university
該大學動物行為主義學者蘇菲?尹認為，當小狗和主人分離的時候，通常它們的叫聲會更加尖銳；反之，一旦發現有陌生人接近或者門鈴響起時，它們則會警覺地發出異乎尋常的狂吠聲，聲音低沉而又刺耳。 -
Dogs usually use high - pitched single barks when they are separated from their owners and a lower, harsher superbark when strangers approach or the doorbell rings, according to sophia yin, an animal behaviorist at the university. playful woofs are high - pitched and unevenly spaced
該大學動物行為主義學者蘇菲尹認為，當小狗和主人分離的時候，通常它們的叫聲會更加尖銳反之，一旦發現有陌生人接近或者門鈴響起時，它們則會警覺地發出異乎尋常的狂吠聲，聲音低沉而又刺耳。 -
Value chain is the sum of value - creating activities, is an innovative management system, its basic idea is to use the system from the perspective of the value of the whole approach to enterprise logistics links, information flow and services for effective management to achieve their overall value and lower the cost of the entire value chain
本文通過介紹價值鏈管理的理論淵源與演進過程、價值鏈管理在中國的發展歷程、發展意義和中國的實際應用狀況;詳細闡述價值鏈管理基本原理、管理思想內涵、主要功能、實施要點等。結合專業商貿公司的具體實際情況，介紹了價值鏈管理的需求以及價值鏈管理的內容。 -
The pattern of flow of lower lock approach is usually complicated due to the influences of the interaction of flow underpoured from different locks. generally, physical model is applied to study the current field for the case of irregular boundaries and complex flow pattern
由於受多線船閘下泄水流相互作用的影響，船閘下游引航道非恆定流流態十分復雜，對於此類有復雜流態的非恆定水流運動問題一般採用物理模型進行研究。 -
The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed
主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。 -
Firstly the method of rayleigh - ritz and galerkin were adopted to analyze the beams under loading combined antisymmetric end moments with transverse uniformly distributed load theoretically, and the results were compared with that offered by kirby, p. a and nethercot, d. a, it showed that result was approximate and even lower and so to some extent the approach used in the paper is practice. secondly several principal factors that affect the beam stability were analyzed respectively, especially the shortening effect was mentioned scarely in some literature so far. at last, the author adopted the matlab to program the finite element software to analyze numerically, the results derived from it were agreed well with it
本文分別採用了rayleigh - ritz法和galerkin法從理論上分析了反對稱端彎矩及橫向均布載共同作用下樑的等效彎矩系數，並與kirby ， p . a和nethercot ， d . a分析結果進行對比，結果表明本文採用的方法得出的等效彎矩系數與其得出結果比較，在均布荷載與端彎矩比例相差不大時基本接近或偏小，說明此方法是可行的，而當均布荷載與端彎矩比例較大時，應根據均布荷載作用進行彎矩等效方法來計算。 -
Compared with the similar research results, the weighted control ic here has the following characteristics : ( 1 ) the circuit structure is simpler ; ( 2 ) the chip ' s fabrication is compatible with standard cmos process ; ( 3 ) n - mosfets with high w / l ratio and short channels are used for weighting and output to reduce the insertion loss ; ( 4 ) the weighting factor varies in a relatively wide range with the controlling signals ; ( 5 ) input and output impedance approach 50 in low frequency ( e. g. 50mhz ), while in higher frequency they slightly deviate from 50, hence the energy reflection lower than 0. 1 ; ( 6 ) it completes the functions of sampling, weighting, controlling and summing of high frequency analog signals
它的加權控制電路與已報道的相關電路相比具有如下特點：電路結構簡單；製造工藝與普通cmos工藝兼容：短溝道，高寬長比的nmos晶體管具有低的通導電阻，將其作為加權、輸出器件可降低由電路引起的插入損耗；改變加權信號，可實現權值在較大范圍內的連續變化；輸入、輸出阻抗在低頻（如50mhz ）下接近50 ，而在高頻下略有偏離50 ，但反射系數均低於0 . 1 ；實現了對高頻信號的取樣、加權、控制、疊加功能的迭加。 -
Chapter 2 uses two ways to address the issues of qos based resource allocation in ip over wdm networks. firstly, for optical - layering approach, we propose a novel priority - based wavelength assignment algorithm. by calculating the relative capacity loss, we manage to assign wavelengths so as to guarantee the blocking probability of the high priority requests to a lower degree, and at the same time with the least influence on the lower priority
基於此，首次提出了利用全網信息而支持優先級的波長分配演算法，由於利用了全網信息，在保證較高優先級請求的阻塞性能時，還對較低優先級請求的阻塞性能進行了優化，從而改善了全網的平均阻塞率；另一個為基於mpls技術的方法，提出了支持不同qos要求的vpn業務的設計問題。 -
Then a higher order lyapunov matrix equation can be transformed into some lower order matrix equations with unidirection coupling by using scalar lyapunov function approach
從而，利用標量lyapunov函數將高階矩陣lyapunov方程化為若干個單向解耦的低階矩陣方程。 -
And then, a example is given about calculating regional average water mass and thermal flux exchanges at land - atmosphere interactions in yangtze river lower by a statistical - dynamical approach through combining remote sensing data with ground measurement data
從野外觀測事實的基礎上討論下墊面非均勻性對地表水熱通量的影響；然後以長江三角洲為例，將遙感觀測資料和常規資料結合起來計算區域平均水熱通量。 -
( 2 ) compared with nld students, ld students had significantly lower scores on deep processing and significantly higher scores on both surface processing and disorganization, which indicated that ld students had difficulty in establishing or maintaining a structured, organized approach to studying. the predominant study strategy of ld students is surface processing
學習困難學生表層策略和無組織策略的得分顯氏著高於深層策略的得分，這表明，學習困難學生在建立和保持一種合理有效的學習策略方面存在困難，其主導學習策略是表層策略。
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