相位穩定原理 的英文怎麼說
中文拼音 [xiāngwèiwěndìngyuánlǐ]
相位穩定原理
英文
principle of phase stability- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 原 : Ⅰ形容詞1 (最初的; 原來的) primary; original; former 2 (沒有加工的) unprocessed; raw Ⅱ動詞(原...
- 理 : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
- 相位 : phase position; phase
- 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
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Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先,在前人研究成果的基礎上,對錨桿與圍巖的相互作用機理進行研究,利用全長錨固錨桿的中性點理論,從等效均化的角度來考慮錨桿對圍巖的加固作用,並推導了在簡單荷載作用下,含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解,對工程設計有著重要的參考意義;在數值模擬方面,以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎,利用虛功原理推導了接觸問題的有限元方程的計算格式,為開發運用大型商用有限元軟體msc . marc提供了理論根據,也形成了本文的理論基礎:最後,論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例,利用本文所述的接觸問題的摩擦模型理論,對錨桿支護結構的應力場、位移場的變化規律進行了研究,分析了加錨支護對隧洞圍巖應力、變形的影響。The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本論文中,首先介紹模數轉換器的各種參數的意義,以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案,引入級聯結構調制器,特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器,調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計,包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等,並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後,利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100
論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上,簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理,對兩種測量方法存在的問題及誤差進行詳細分析和比較;針對位相解包裹錯誤點的傳播問題,作者通過改變解包裹路徑來提高位相解包裹的正確性;分析討論從解包裹位相( x , y )到再現物體的高度h ( x , y )物理量之間的關系,研究相應的演算法,利用matlab平臺,對實際採集的條紋圖像進行處理和輪廓重構,其中改進及創新工作主要表現在以下兩個方面: ( a )針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響,提出了一種用條紋穩定器穩定干涉條紋,用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法,建立了相應的測量系統,系統的條紋穩定可以達到。To let more domestic relevant researchers understand the applicable techniques of stable isotopes, this article not only introduces the principles of isotopes measurements by gas isotope ratio mass spectrometer, but also integrates the experiences of hydrogen, oxygen, carbon, nitrogen, and sulfur isotopes in agriculture and environmental applications that were described in papers
為讓國內更多相關研究人員了解穩定同位素技術的可利用性,本文描述氣相同位素比值質譜儀之分析原理,及整理氫、氧、碳、氮和硫等同位素在農業及相關生態環境研究上應用的文獻。According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d
本文首先介紹了ld泵浦nd : yag激光器的發展狀況、主要特性及其應用,從四能級速率方程出發,推導了ld泵浦nd : yag激光器的閾值、輸出功率和斜效率的表達式,並簡述了激光器的工作原理、結構型式和倍頻方法;其次,以空間相關的速率方程為基礎,提出了ld端面泵浦nd : yag激光器的設計方法,給出了一定泵浦耦合方式下,振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據,以此為依據,設計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光器和透鏡組耦合高功率ld泵浦nd : yag激光器,對激光器的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光器以單縱模運轉;最後,根據泵浦光焦斑端面位置對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時,激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律,測量范圍和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測量范圍擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。Based on the treatment engineering of 26 kilometers lacustrine deposits soft soil foundation in han - sha sect of yi - huang freeway, the paper, through the means of centrifugal model test and field observation, establishes mathematical analysis model, completely and detailedly researches and analyses the stability of lacustrine deposits soft soil foundation and the rule of settlement, guides the large - scale construction of yi - huang freeway 26 kilometers soft foundation treatment, educes the settlement characteristic and the rule of lacustrine deposits soft soil subgrade, summarizes the scientific measure of effectively controlling the stability and settlement of such kind of foundation
本文以宜黃高速公路漢沙段中的26公里湖相沉積軟土地基的處理工程為依託,通過採用離心模型試驗與現場原位監測相結合的手段,建立數學分析模型,對湖相沉積軟土地基的穩定性及沉降規律進行了全面、細致的研究與分析,指導了宜黃高速公路26公里軟基處理的大規模施工,得出了湖相沉積軟土地基路堤沉降特性及規律,提出了有效控制此類地基穩定性及沉降的科學措施。( 1 ) to follow the rule of exchange on equal value, and attach importance to the role of value law ; ( 2 ) to strengthen the basic status of agriculture and keep the form of system of ownership stable in the countryside. ( 3 ) to deal with the relation of accumulation and consumption correctly, strengthen economic construction and raise the level of citizen life. ( 4 ) to renew and perfect rational rules, and carry out the rule of being paid for his work done
劉少奇勇於面對現實,運用馬克思主義基本原理,深入分析我國的國情和建設現狀,提出了許多富有獨到見解的理論觀點:嚴格遵循等價交換原則,重視價值規律作用;加強農業的基礎地位,保持農村的所有制形式相對穩定;正確處理積累與消費的關系,加強經濟建設、提高人民生活水平;恢復和健全合理規章制度,貫徹按勞分配原則;施行經濟核算,改革企業經營管理;改革流通體制,疏通流通渠道;改革工業管理體制,試辦托拉斯。( 2 ) to determine the worst load case accurately and quickly, influence faces of main sections are plotted < > ( 3 ) combining the influence face with the pre - reinforcement space fe model, the internal force and the stability are computed, then the main reasons of the disease are analyzed
( 2 )為準確快速地確定最不利荷載工況,運用虛位移原理和邊界元相結合的新方法,繪制了主要檢算截面的內力影響面。 ( 3 )應用空間有限元模型,結合內力影響面,對加固前進行內力和穩定性計算,分析其主要的病害原因。Some of problems in distillation technology process are studied using excel, matlab and chemcad. they are distillation with simple balance, determining accurately the position of sensitive plates in distillation tower, distillation of multi - components, and crude distillation at steady state. this paper shows how to solve bubble & dew points for binary ideal system and five cases of flash by means of excel and analizes reducing pressure affects on phase equilibrium as an example of distillation and separation ethyl benzene & phenyl ethylene below atmosphere
基於excel 、 matlab和chemcad軟體,對蒸餾過程中的簡單平衡蒸餾、精餾塔靈敏板位置確定方法、多組分精餾等進行了數值計算與定量研究,對原油煉制常減壓塔進行了初步的穩態模擬,實現了用excel求解雙組分理想體系的泡、露點問題和閃蒸計算的五種情況,並分析了減壓對其相平衡的影響。It also builds the mathematic model of all section of vscf ac exited wind power generation system on a - b - b and d - q coordinate system by the coordinate commutation technology. the thesis gives the characteristics of torque, active power, reactive power and the steady - state analysis of it. it proves that the capability of wind generator is determined to slip, the amplitude and phase of rotor voltage, the phase dispatch between stator voltage and rotor voltage
並分析了交流勵磁風力發電機作變速恆頻運行時的工作原理,闡述了與同步發電機、異步發電機的不同之處,分析了其能量平衡關系,在坐標變換技術的幫助下,詳細推導了交流勵磁發電機在a - b - c坐標系和d - q坐標系下的數學模型,分析並模擬了其有功和無功特性、轉矩和功率調節特性、穩態運行和機械特性,證明了發電機的性能由轉差率、轉子電壓的相位和幅值、定轉子電壓相位差所決定的。2. firstly this paper introduce the whole machine balancing principle and method for dual - rotor systems with little rotating speed difference firstly, then discuss key points such as picking up base signal, picking up " pai " signal, measuring rotor speed, capturing the value of wave crest and through, calculating the phase values of unbalanced weight, processing odd phases and finding each rotor ' s amplitude. on the foundation of above theories, using signal process technique and chip microprocessors technique, we developed a portable intellectual instrument, the first domestic device. which can balance dual - rotor system with little rotating speed difference quickly and accurately
本文從不解拍整機動平衡原理出發,在詳細討論基準信號、拍振信號的提取;轉速的測量;拍峰、拍谷的捕捉:不平衡相位的求法、特殊相位角的處理;內、外轉子幅值的確定等關鍵問題的基礎上,應用信號處理技術和單片機技術研製成功國內第一臺性能穩定、操作簡單、成本低廉且平衡速度快,平衡精度高的便攜式微速差雙轉子現場整機智能動平衡儀。In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.
在混凝土結構的施工及使用過程中,由於受其自身及外界各種因素的影響,常常會產生一些缺陷,對結構物的承載能力和耐久性造成嚴重影響,採用無損檢測技術進行質量檢測和健康診斷,這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作,重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍,運用動力有限元數值模擬其檢測過程,探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵,研究了不同裂縫深度下首波相位變化規律,得出了反轉臨界點與裂縫深度之間的關系,這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術,它是利用聲波穿透被檢測體獲取聲波接收時間,來進行計算機反演成像的技術。Frequency source is widely used in today ' s electronic equipment and even refered as " a heart " of many electronic systems. the frequency synthesizer with a lot of channels and high frequency stability by means of theory of phase locking has almost been a necessary component in the modern electronic systems such as telecommunication, radar and electronic countermeasure. the phase - locked frequency synthesizer can be generally divided into two kinds : one is digital phase locked frequency synthesizer, the other is analog sampling phase locked frequency synthesizer. compared with the prior, the latter has many merits such as lower phase noise, samller volume, lighter weight and lower power consumption and has a wide foreground in the equipments of microwave band
利用鎖相原理來獲得波道數目眾多、頻率穩定度很高的頻率合成器,幾乎已成為現代通信、雷達和電子對抗等電子系統不可缺少的組成部分。鎖相式頻率合成器一般分為數字鎖相頻率合成器和模擬取樣鎖相頻率合成器兩類。取樣鎖相頻率合成器與數字鎖相頻率合成器相比,具有相位噪聲低、體積小、重量輕和功耗低等優點,尤其在微波波段的電子設備中,具有廣闊的應用前景。The reform of transfer system in china must not be confined on itself. the reform should start from the basic principle " function choosing income ", perfecting system foundation of transfer firstly which means ensuring the definition, stability and rationality of function division. then, it is possible to bring forward relevant reform suggestions
我國的轉移支付改革絕對不能只局限於轉移支付本身,必須從事權決定財權四川大學碩士學位論文這一基本原則出發,先完善轉移支付的制度基礎?保證支出職能劃分的明確性、穩定性、合理性,在這個基礎上才能提出相應的改革建議:合理劃分財政收入;明確轉移支付的目標;科學計算財政缺口;選擇適當的轉移支付方式實現不同的政策目標;提高轉移支付計算的科學性、透明度和可預見性。The phase noise in microwave receiver and the measured parameter of source frequency instability are described in this paper, and the technology of frequency - synthesizing and theory of phase locked loop ( pll ) are also briefly introduced
摘要闡述了微波接收機中的相位噪聲概念及本振源頻率不穩定度的實際測量參數,並簡要介紹了頻率合成技術和鎖相環路工作原理。Fourth, carry on the basic principles such as integrating law over the whole country, steady pattern of managing system, self - governing by residents, etc. fifth, it is necessary to establish the basic rules of estate management law which may include establishment of mutual rights and obligations between the company and residents, and ascertain the procedure of disputes, etc. the rationalization of estate management as an important matter concerning the national economy and the people ' s livelihood can benefit the prosperity and stabilization of towns
第五,物業管理法的基本內容應包括以下五個方面:確定物業管理關系中各個主體的法律地位和相互之間的權利義務關系;確立物業管理的基本原則,解決物業管理立法的指導思想問題;規范公共契約;確定糾紛處理規程。物業管理市場的規范運作有助於城市的繁榮與穩定,對全社會起著最基本的穩定器的作用,是關系國計民生的大事。Principle of phase stability
相位穩定性原理The major results of this study were as follows : as a whole, the status quo of subjective well - being of kindergarten teachers at work is not good ; subjective well - being of kindergarten teachers at work is correlation observably to feeling of achievement at work, to social statue of considering themselves, to status quo of feeling at work, to personal developmental opportunities afforded by organization, to personal developmental opportunities gaining themselves and so on ; kindergarten teachers who worked at different kindergarten, different relationships between men and men, their subjective well - being at work is very different ; the major reasons that they gaining subjective well - being at work as follows : praised and sustained by principals, successes at work, children who are pure in heart, praised and sustained by children ' s parents and so on ; the mayor reasons that they losing subjective well - being at work as follows : mechanism and miscellaneous of work. misunderstandings of children ' s parents, without safety and stability at work and so on ; subjective well - being of kindergarten teachers at work changes according to some rules ; all these facts contribute to gaining subjective well - being at work : positive relationships between teacher and children, aesthetic attitude to work, humanistic management, opportunities of special development and so on
主要研究結論有:從總體上來說,幼兒教師職業幸福感現狀不容樂觀;幼兒教師職業幸福感與工作成就感、自己認為的社會地位、工作感受狀況、組織提供給教師個人發展機會、教師主動獲得個人發展機會等因素之間存在顯著性相關;工作在不同級別幼兒園、不同人際關系氛圍中的幼兒園教師,其職業幸福感存在顯著性差異;幼兒教師獲得職業幸福感的主要原因有:領導的支持與肯定、工作中常能獲得成功、幼兒的天真無暇、家長的支持和肯定等;而幸福感失落的主要原因有:工作機械繁瑣、家長的不理解、工作沒有安全感和穩定感等;幼兒教師職業幸福感存在一定變化規律:積極的師幼關系、以審美的態度對待工作、人本管理、獲得專業發展機會等都有助於幼兒教師獲得職業幸福感。In chapter two, the liner theory of elasticity solid ' s addiontional on initial - stress configuration is narrated, the initial stress is adopted as parameter described currently configuration, corresponding virtual principal and variation method are given, and the energy theory of balanceable stable critical condition is put forward according to the ideology of addiontional deformation on initial stress configuration
第二章從初應力位形上彈性固體附加變形的二次理論入手,引出了初應力位形上附加小變形的場論;採用初應力作為描寫當前位形的參數,提出相應的虛功方程和位移變分原理;從初應力位形上附加變形的思想,提出平衡穩定臨界條件的能量原理。The basic principle of feedback crystal oscillator is analyzed. the basic concept of frequency stability is also introduced, following by the usual expression of phase noise in frequency domain and phase jitter in time domain. further, we describe the origin of crystal oscillator ' s phase noise and phase jitter, also list a variety of its contributors
然後從理論上分析了反饋型晶體振蕩器的基本工作原理,並闡述頻率穩定度的概念,給出了在頻域中相位噪聲和時域中相位抖動的表示方法,形成原因以及影響相位抖動的諸多因素。分享友人