準同型相界 的英文怎麼說
中文拼音 [zhǔntóngxíngxiāngjiè]
準同型相界
英文
mpb-
Relaxor ferroelectric single crystals, such as pb ( mg1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pmnt ) or pb ( zn1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pznt ), have been reported to exhibit an extremely large piezoelectric constant and excellent electrostrictive properties. such excellent performance makes it fully substitute the traditional piezoelectric ceramics and points to a revolution in ultrasonic transducers, actuators and micro - positioners, making relaxor - based piezocrystals the most promising materials for a broad range of advanced applications. however, it is difficult to grow the high quality single crystals because of the lack of valid thermodynamic data
新型弛豫鐵電單晶鈮鎂酸鉛（簡稱pmnt ）或鈮鋅酸鉛（簡稱pznt ）是一類新興的功能材料，其在準同型相界附近具有優于傳統壓電陶瓷的較高的壓電常數和電致伸縮系數，可完全代替傳統的壓電陶瓷作為超聲換能器、致動器、微位移器等，使其成為鐵電領域的研究熱點，但如何生長出滿足應用要求的單晶材料卻一直是一個困擾的問題。The hysteresis loops were detected, it is found that the remanent polarization and the conceive field of the ceramics deceased with the dope of ba2 +. in the composition range of mpb, the conceive field exhibit the lowest value
測試了樣品的電滯回線，發現batio _ 3的摻入有效降低了nbt基陶瓷的剩餘極化強度和矯頑場，在準同型相界組成點，矯頑場達到最小值。Based on the theory of cooperation between foundation and structure, paper uses ansys finite element software forming three - dimensional finite element model of. paper also anglicized element type choose, material attribute choose, loading determination, terminal condition determination, anyslys type determination and solution choose, etc. correcting buildings with the method of drawing out soil was analyzed through ninth aspects listed below
本文借鑒結構設計中的基礎與上部結構共同作用理念，運用ansys有限元分析軟體，在探討了單元類別的選擇、材料屬性選擇、載荷、邊界條件和分析類別的確定、求解器、求解方法與收斂準則的選擇等與有限元建模相關內容的基礎上，建立了上部結構和土體共同作用的三維有限元模型。Now, with the rapid development of computer and electronics, there have been a great progress in the field of input / output device technology. among this field, pci has been a current standard interface of pc. and in order to accommodate the development of operating system, wdm has been a driver model adopted by industry generally. at the same time, in the respect of sensor ’ s application, a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors. meanwhile, eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device
目前，隨著計算機技術和電子技術的飛速發展， i / o設備介面控制技術領域有了長足進步。其中， pci介面成為主流的微機標準介面，而與操作系統平臺的發展相適應， wdm已成為業界普遍採用的驅動程序模式;同時，在傳感器應用方面，高精度、高集成的增量式旋轉編碼器已是位移型傳感器中的佼佼者，而eda技術和cpld / fpga器件在信號處理電路中的應用被廣大電子設計人員所認可。Study on morphotropic phase boundary of pb - based relaxor ferroelectric materials
弛豫鐵電材料的準同型相界研究Secondly, the author gives the range of enterprise capability, analyses the attraction of enterprise capability to different objects indirectly, analyses the character of core competence, puts forward identifying the core competence from the industry structure. then, the author compares the resource theory and capability theory, analyses the promotion of enterprise resources on capabilities. at last, the author analyses the collectively impact of resources and capabilities on competitive advantage, and the interpretative structural modeling is given
按照資源重要性的不同，提出了戰略資源的概念，參考相關資料列舉了戰略資源的評價標準；對企業能力的范圍進行了界定，將企業能力按照職能活動進行了詳細分解，採用間接分析法分析了企業能力對不同客體的吸引，類比戰略資源對核心能力的特點進行了歸納，提出了從產業結構特徵入手的核心能力識別方法；比較分析了企業資源理論與能力理論的關系，詳細分析了企業資源對能力的促進作用；最後，分析了企業資源與能力對企業競爭優勢的綜合影響，並建立了解釋結構模型。In this paper, pmnt, pznt single crystals in the vicinity of the morphotropic phase boundary were obtained by high - temperature solution technique. the growth, structure and phase stability of single crystals were studied. the results are shown as follows : 1
本論文採用高溫熔液法技術，對用高溫熔液法生長弛豫鐵電單晶材料工藝進行了研究，成功地制備出準同型相界附近的pmnt 、 pznt單晶材料，分析了晶體形成、晶體結構及其相結構穩定性，並對生長機理作了初步探索，主要研究結論如下： 1The properties of all samples were investigated, it is the same to the pzt ceramics, samples in the composition range of mpb exhibited best piezoelectric performance
測試了各組成點樣品的壓電性能，結果表明，與pzt基含鉛壓電陶瓷相似，材料在準同型相界組成范圍內壓電性能最佳。This original presents the universal insulation materials and the general testing and evaluating method for pipelines " insulation of the thermodynamics power generating plant ; performs the insulation testing and evaluating of the high temperature steam pipelines of longfeng heat and power plant ; takes composite structural research on the high temperature steam pipelines, and establishes the relevant optimizing physical and mathematical model of the insulation layer, confirms the constraint and boundary condition, carries on optimizing design for the thickness of insulating layer ; in order to more systematically analyzing the present situation of insulation of the installation and pipelines of longfeng heat and power plant, develops a suit of software namely " the information associated decisive system for the insulation project ", taking advantage of this software can achieve. the design, evaluation and direction to building for the insulation project, examine the criterion of design and building, the perform ance and manufacture data of different insulation material, which is convenient to the selection of insulation material
在進行保溫結構優化的過程中，主要是針對高溫蒸汽管道進行復合結構研究，並建立相應的物理及數學模型，找出其約束條件和邊界條件。同時為了更加系統地對龍鳳熱電廠設備及管道的保溫現狀進行分析，開發了一套「絕熱工程信息決策系統」軟體，利用該軟體可以實現絕熱工程的設計、評估及施工指導，並可以查閱設計及施工標準、各種絕熱材料性能和生產廠家的資料，便於絕熱材料的選擇。該套軟體的設計填補了國內空白，避免了絕熱工程改造、設計及施工過程中的無序現象，規范了絕熟工程市場，從而為我國絕熱工程的選材、設計、施工及管理提供科學依據。Pms materials have many good properties such as high kp and qm, the good time and temperature stability of resonance frequency, and low dielectric loss at high frequency. pzn materials have excellent piezoelectric and dielectric performances near mpb
Pms材料具有kp和qm高、諧振頻率的時間和溫度穩定性好、高頻下損耗小的特點，而pzn材料則在準同型相界附近表現出優異的介電、壓電性能。Piezoelectric properties were detected, it is suggested that the optimum poling condition is maintaining 15 minutes under 4kv / mm, poling temperature is 70 xrd results indicate that the fabric transited from rhombohedral to tetragonal gradually with the substitution of the ba2 +. morphotropic phase boundaries ( mpb ) of the ceramic exist in the composition range of x = 0. 06 ~ 0. 10
Xrd分析表明，隨著ba ~ （ 2 + ）取代量的增加，樣品晶體結構逐漸由三方相向四方相轉變，在x = 0 . 06 0 . 10組成范圍內存在三方、四方相共存的準同型相界。Based on the definition of urban land intensive use, and utilizing index data of urban land use in wuhan city, the paper selects the corresponding evaluation index system to make a quantitative analysis of intensivism extent of urban land use and expects to get a comparatively exact conclusion through the comparative appraisal among many cities
摘要在界定城市土地集約利用內涵的基礎上，以此為標準，結合武漢市城市土地利用的各項指標數據，選取相應的評價指標體系，首先應用層次分析法構建評價模型並確定指標權重，對武漢市城市用地集約程度進行定量化評價；同時應用多城市對比評價方法與其進行評價效果的比較，以期得到該市土地利用較準確的評價成果。The thesis uses sql server 6. 0 database, standard sql access interface, and oriented - object program language vc + + to implement our electric network dispatching message management system. the system can operate like this : automaticly check if having data files come ; discriminate file type ; automaticly read data into database ; rapidly give out the precise analysis results, including waveform display, fault component calculating ; select fault phase ; distinguish fault type ; precisely fault allocate ; run all kinds of database administration, like antomatic add - on, automatic deletion, amendment, inquiry by different conditions ; print all kinds of outcome and keep them into database ; share data resource by web technique ; deal with complex faults. the whole system i finished will be powerful technic support for dispatching operation
本文採用標準的sqlserver6 . 0數據庫，標準sql訪問介面和面向對象編程工具vc + +進行編程，實現了集數據庫、分析計算、圖形化界面、網路通訊於一體的電網故障錄波信息管理及故障診斷系統，該系統能夠在每次故障后自動查詢有無數據文件的到來;能夠對傳送到調度端的數據文件分析其類型;能夠按comtrade格式自動地將大量數據信息完整地填入數據庫中;能夠進行故障選相，故障類型判別和故障精確定位;能夠快速地對故障做出精確的分析，計算各次諧波分量，有無功和視在功率，功角，序分量等;能夠對數據庫進行各項管理，如瀏覽，自動添加和刪除，修改和按各種不同條件進行查詢;能夠將計算結果，各種表格圖形列印出來和保存進數據庫中;能夠將計算分析結果通過web技術為其他部門提供共享數據資源To meet the growing demand of china and asia market, chart invested 4 entities in china successively since 1995. adopting the advanced equipment, technologies and management from charts headquarter, chart china is able to provide china and asia market with various cryogenic equipment, such as liquid cylinders, bulk tanks, trailers, vacuum insulated pipe systems, according to the international codes as well as chinese code and regulations, and better service and technical support for customers of these regions
為了適應中國及亞洲地區經濟高速發展的市場需求，查特mve從1996年起先後在中國投資建設了4家公司，應用美國查特公司總部的先進設備技術和管理，按照國際相關標準及中國壓力容器現行規范和標準進行深冷設備的生產製造，為國內及亞洲地區的客戶提供世界一流品質的焊接絕熱氣瓶真空絕熱管道大型深冷貯罐低溫液體槽車等各種深冷設備，同時為客戶提供更及時周到的服務與支持。分享友人