質點加速度 的英文怎麼說
中文拼音 [zhídiǎnjiāsùdù]
質點加速度
英文
particle acceleration-
According to the characteristic of cnc plasma cutting machine it could improve the process quality of cutting piece in effect for choosing proper technics, for example, cutting section point, aspect, sequence, speed etal during the period of processing, and elaborating towards the distortion control of single side piece, slightness piece, profiled piece and particularity piece at the same time
根據數控等離子切割機的特點，在加工過程中正確選擇切割的起點、切割方向、切割順序、切割速度等工藝，可以有效提高切割件的加工質量，同時對單邊工件、細長件、異型件以及特殊件的變形控制進行了詳細地闡述。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。The elastic and elastic - plastic calculation models of slope earthquake response are erected by the commerce software - - - flac. the distribute regularity of peak
建立邊坡彈性和彈塑性模型，分析了邊坡內部質點沿高度方向的加速度峰值放大倍數分佈規律。Besides, scan rate and cycle period also affect the result ; co - deposition of dualistic oxide is a focus of research, as an element in the same group, ir is selected. deposition rate of composition is decreased by the adding of ir composition, and when the proportion of ir exceeded 50 %, composition procession can be ceased. but cooperation of ir and ru oxide can highly increase the specific capacitance of active material ; annealing treatment under a certain temperature can help to change the hydrate ru composition into mixture state ru oxide, accordingly increase the stabilization of active material
研究表明:電解液的配製過程中，氯化釕濃度、溶液ph值、陳化時間、溶液溫度對電鍍效果均有影響，其中溶液ph值是最主要的影響因素;在儀器的使用條件探索中，理論結合實驗確定了本電鍍液體系循環伏安電勢窗的理想范圍，並發現循環伏安掃描速度和掃描周期對電鍍結果也有較大影響;混合氧化物的共沉澱是目前研究熱點，在此選用與釕同一族的銥作為共沉澱元素，銥的加入會阻礙氧化物的沉積速度，銥的比例超過50 %會使沉積作用停止，但是二元氧化物的協同作用使沉積的活性物質比容量大大提高;一定溫度下退火后處理作用會使水合釕化物轉變成混合價態的氧化釕，從而提高活性物質的穩定性。In our country, along with the economic system which transferred from planned economy to socialism market economy after the reform and opening to world, urban economy was developed greatly, and the original function structure and matter establishment of city could not adapt to social need as well. furthermore, with the growth up of socialism market economy, city was going through rapid and sustainable change, urban economy developed rapidly and urban land rearrangement was carried out unprecedented in scale and speed, and the latter was highlighted and turned into the key of building and hotspot of attention gradually
在我國，改革開放后隨著經濟體制由計劃經濟向社會主義市場經濟轉變，城市經濟得到迅速發展，城市原有的功能結構和物質設施均不能適應時代需要，並且隨著社會主義市場經濟的逐漸形成，中國城市正經歷著急劇而持續的變化，城市經濟發展速度大大加快，城市土地整理也以空前的規模與速度展開，日益成為我國城市建設的關鍵問題和人們關注的熱點。The move by oil producers to develop heavy oil fields more quickly than new refinery units are being added was illustrated by saudi arabia this week
石油生產國開發重質原油油田的動作，比新煉油廠的增加速度更快，上周沙烏地阿拉伯的行動就說明了這一點。The injection rate, injecting angle, wire length, preparing quality of the cored - wire, treating ladle, treating temperature, inoculation and so on are the key factors influencing the treating results, so must be strictly controlled
喂線速度和長度、包芯線加工質量、鐵液處理包、球化處理溫度、孕育和入射角等因素都是喂線球化工藝質量控制要點，是決定喂線球化工藝成敗的關鍵，在生產過程中必須嚴格控制。The sheer weight of physical evidence leans heavily towards the accuracy of jose and lloydine ' s july 26, 1992 date as the point when a new sequencing of planetary time and, therefore events, accelerated
物質絕對重量的證據嚴重地朝向瓊斯和勞埃德的精確度傾斜， 1992年7月26日作為一個點，一個新的行星序列時間開始，從而事件在加速。Based on the resolving algorithm of continuous - layer method, the time order analyzing curves, acceleration curves and the response spectra of transfer function at the different points of the ground and at the same point on the different ground conditions are gained. it demonstrates that the responses of ground in x, y and z axial directions all change by time, and the obvious wave propagation appears in ground. for different observing points on the same ground condition, at more distant points from the load line, the less swings are found, that is to say, vibration possesses the obvious characteristic of attenuation
基於分層法的解析演算法，得到了在不同點以及在同一點但不同地質條件下的時程分析曲線、加速度變化曲線和傳遞函數反應譜，結果表明，地基土在x 、 y 、 z三個方向的響應都是隨時間變化的，並且伴隨有明顯的波動現象產生；對于相同地質條件的不同觀察點，距離荷載作用線越遠的地方振幅越小，即振動具有明顯的衰減性。The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study
為改善上述缺點，本文進行了以下的研究工作：在忽略耗能器附加質量的基礎上，推導出適用於耗能減震結構的攝動法，減少振型分解法在迭代計算過程中的工作量，加快計算速度；針對運動方程的強行解耦所產生的誤差，根據攝動法原理，對其進行一階攝動修正；為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差，引入狀態空間對系統進行復模態分析，並改進了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法；對于耗能器的數量和位置優化進行了一些探討和研究。The second part brings forward a new ar - model - based arm detection method based on features of arm and characteristics of velocity and acceleration of the radar echoes. by establishing two - order ar models, this new detection method computes the poles of models representing different targets, thus estimates the acceleration of the targets so as to determine the nature of the targets. furthermore, this method can not only be applied when the arm is being tracked by radar, but also be put into use in radar ’ s seeking and scanning times
第二部分則是根據反輻射導彈（ arm ）的特點及其雷達回波信號中速度、加速度等特徵，提出了一種新的基於ar模型的arm檢測演算法，該方法通過建立二階ar模型、估計代表不同目標的模型極點，並由此估算目標加速度來判斷目標性質，該方法不僅可以在雷達已跟蹤上arm后採用，而且適用於雷達搜索掃描時使用，模擬結果表明該方法具有解析度高，對雷達脈沖重復頻率（ pulserepetitionfrequency ， prf ）及積累脈沖數要求不高的特點，在低的prf及少的積累脈沖下，利用該方法仍可有效地識別檢測arm 。The article has researched the intention of agricultural industrialization which is guided by market and mainstay enterprises, based on agricultural product base organized by a lot of families, and characterized by joint management and mutual benefit. it also realized production specialization, product commercialization, service socialization and etc. the article has also researched the existing conditions of agricultural industrialization both at home and abroad. although it is different in national conditions and actual practice, the developed countries follows the market economic law and naturally steps on the road of agricultural industrialization. as the continuous reforming and opening up, china actively explores and enhances the management level of agricultural industrialization. the writer uses system changing theory, scale management theory, trade expense theory. market system theory and industrial economics theory, to put forward the main type of mainstay enterprises, which is divided by ownership, organization form, contact form and product. the writer thinks that development of mainstay enterprises can promote effective joining between small production and big market, the developing of high - benefit agriculture, establishing trade / industry / agriculture operation system, region economics and joining process between urban area and rural area. the existing conditions in strengthening the mainstay enterprises in zhaoyuan embodies continuous expanding in scale. continuous widening in fields, continuous enhancing in benefits, continuous improving in techology and quality. by finding the problem and shortage in product quality, developing ability and scale strength, the article has put forward the following views : face to market and enhance quality and techological content of agricultural products ; enforce flexible policy and investments ; establish fair and reasonable benefits joining system. the article has also put forward the countermeasures and suggestions on enhancing the enterprises ' management level
文章研究了農業產業化經營的內涵，明確其以市場為導向、以龍頭企業為依託、以一大批農戶組成的農產品生產基地為基礎，形成農工商有機結合、風險共擔、利益均沾的本質特點，表現出生產專業化、經營一體化、企業規模化、產品商品化、服務社會化等特徵。分析了國內外產業化經營的現狀，認為盡管各國的國情不同，具體的做法和叫法不盡相同，但是經濟發達國家都遵循市場經濟規律，很自然走上了農業產業化經營的道路，發展中國家紛紛仿效，中國也隨著改革開放不斷深入，積極探索發展提高農業產業化經營水平。作者運用制度變遷理論、規模經營理論、交易費用理論、市場機制理論和產業經濟學理論，提出了龍頭企業從所有制形式、從組織形式、從聯系方式及從產品上劃分的主要類型；認為發展龍頭企業有促進小生產與大市場的有效對接、推動優質高效農業縱深發展、建立貿工農一體化運行機制、振興區域經濟、加速城鄉一體化進程等作用；考察了招遠市壯大龍頭企業推進農業產業化的現狀，表現在規模不斷擴大、領域不斷拓寬、效益不斷提高、技術不斷改進、質量不斷提高等方面；找出了龍頭企業產品質量上、開發能力上、規模實力上和行業自律上的問題和差距，提出了要面向市場，努力提高農產品的質量和科技含量，多策並舉，搞活投入機制，建立公平合理的利益聯結機制，加強行業自律，提高企業經營管理水平等對策和建議。The immersion electrical heater is chiefly applied in the direct contact mode of fluid heating. it features fast heat exchange and high thermal efficiency. it has the varieties of water heater, oil heater and gas heater. its heating element power density, i. e. the power per unit of heating area of the heating element, is an important parameter of the electrical heating element, which has a direct bearing on the performance and working life. the working out of the value is a highly specialized problem, being under the influence of many factors ( media flow rate, tempt, physical and chemical properties and direction in which the medium flows past the element etc )
浸入式電加熱器主要用於直接對流體接觸加熱的場合，具有熱交換快，熱效率高等特點，分為水用加熱器、油用加熱器、氣體用加熱器，加熱元件的功率密度：即電加熱元件單位發熱面積上的功率，它是電加熱元件極重要的參數，直接影響加熱器的使用性能及使用壽命，它的取值是一個非常專業的問題，受到許多因素的影響（如介質的流速、溫度、物理和化學性質及介質流過加熱元件的方向等等） 。The crystal is applied to the papermaking that can raise whiteness and non - transparency, remains - proportion of the crystal is higher than the usual light calcium carbonate. as for plastics, it can improve impact strength in the plastics, its inhibiting - burning capability is advancing bigger than the common inhibiting - burning material of magnesium hydroxide. concerning the thermo tropic adhesives, the physical property of compound - packing is higher than the one of single - packing, namely remover strength, softening point, hardness, climate tolerance and the speed of consolidation are high
晶須作為造紙填料，可使紙張的白度和不透明度提高，留著率比造紙常用填料輕質碳酸鈣高；用作塑料填料，可使塑料的沖擊強度提高，阻燃性能比常用阻燃材料氫氧化鎂有較大的提高；添加到熱熔型膠粘劑中，與輕質碳酸鈣混合使用可明顯提高熱熔膠的剝離強度、軟化點、硬度、耐侯性以及固化速度。The heating speed is quick, the loss is less, controlling the chemical composition is easy, the quality of the product or is high, the chimney is less and the operation is convenient
本公司生產的中頻感應熔爐，具有加熱速度快，金屬損耗小，化學成分容易控制，產品質量高，煙塵小，便於操作等優點。" sound " related therapies ultrasonotherapy uses 20, 000hz or high ultra sound to accelerate particles in cells and soften tissue, functioning like a " micro massage. " it can also have a heating effect at the interface of different tissues to accelerate the absorption process
超聲療法ultrasonotherapy使用頻率高於20 ， 000赫茲的超聲波進行治療，使細胞內的質點獲得加速度而產生碰撞，造成對細胞之微細按摩作用，如此，不僅能軟化較硬的組織，且可在不同組織界面處起溫熱作用，而增進細胞膜的吸收過程。Electromagnetic induction heating has many good qualities, such as high speed heating, inner heating and high efficiency, uniform and selective heating. the products have good qualities. electromagnetic induction heating also has the characters of easy to be automatization of control, so it is developing at a high speed in recent years
電磁感應加熱具有加熱速度快、物料內部發熱效率高、加熱均勻，且具有產品質量好、幾乎無環境污染、可控性好及易於實現生產自動化等一系列優點，因此近年來得到了迅速發展。The features of phase and group velocity were advanced by means of preparing samples with different shaping. the phenomenon of " cusp " in group surface of quasi - shear wave ( qsv ) was observed. the inversed velocity surface according to calculated elastic constants in real orthotropic media is consistent with practical measured velocity surface
用加工不同樣品形態的方法給出了正交各向異性介質的相速度和群速度特徵，觀測到各向異性介質群速度面上的尖點現象，並用測試得到的正交介質的彈性常數進行了數學模擬，其波場特徵與測試的速度面特徵相符。Fp has been widely applied in aerospace and aviation industry to produce complicated shaped components in the north america and europe. in china, fp study just begins now
該技術特別適用於復雜形體復合材料零件的加工，具有加工成本低、速度快、成品質量高、強度高等特點，在發達國家已廣泛應用於航空航天領域。In addition, three strong motion accelerographs have been installed on different geological sites and ground acceleration data are collected for use in structural design
此外，在地質不同的地點，亦裝置了三部強震加速儀，所得的地面加速度資料可應用於結構設計方面。分享友人