adaptive test 中文意思是什麼
adaptive test
解釋
自適應測試-
Test results show that under 2 - tone test in 5mhz tone spacing, the power amplifier system achieves - 50dbc imd3 with 20w output power, improved 20db in imd3 compared with the one without linearity. estimated value of aclr comes to 53db, which satisfies the 3gpp requirement for wcdma base - station transistor. further tests with alterative input power indicate a steady suppression to the imd3 controlled by the adaptive system
測試結果表明，自適應前饋功放系統在雙音輸出功率20w時三階交調系數小於- 50dbc ，鄰通道泄漏抑制比（ aclr ）的估算結果大於53db ，在理論上滿足3gpp對wcdma基站發射機的指標要求。 -
This thesis introduces the working principle, craftwork requirement, modeling process, control strategies and the realization of lf refining furnance bottom blowing argon control system. through the study and analysis of bottom blowing argon process control system, the thesis discusses the mean neural network model of controlled object and the mathematical models of the exectors, pwm adjustable pressure controller and pcm adjustable flux controller according to the relevant liquid knowledge and relevant data, including design data, test data and running data. to begin with the craftwork reguirement of bottom blowing argon and the actual instance of the control system, it presents the strategies of fuzzy parameters self - adaptive pid control used in pressure difference inner loop and fuzzy plus pi compound control used in flux outer loop which are based on the above modeling in order to carry out the accurate control of argon flux
本文介紹了lf精煉爐底吹氬過程式控制制系統的工作原理、工藝要求、建模過程、控制策略以及控制系統的實現。通過對精煉爐底吹氬過程式控制制系統進行研究與分析，並根據流體力學的有關知識以及有關數據（其中包括設計數據、試驗數據和運行數據） ，建立起了被控對象的平均神經網路模型和執行機構（即pwm調壓器和pcm調流器）的數學模型。在此模型的基礎上，從底吹氬工藝要求和控制系統的實際情況出發，提出了壓差內環模糊參數自適應pid控制策略和流量外環模糊pi復合控制策略，以實現氬氣流量的精確控制。 -
Thereafter, the article is utilized on the basis of congested mstfp that based on the congested control of tfrc, with the buffer control we put forward design plan of adaptive technique, and finish the demonstration of the adaptive technique through the test datum that acquired from the scheme that is built up in the lab
其後，文章利用基於tfrc擁塞控制的mstfp （流媒體tcp兼容協議）和緩沖管理提出了流媒體網路傳輸自適應技術的設計方案及實現，並通過在實驗室架構網路測試方案，獲得數據完成對自適應技術的論證。 -
And i finished the layout design, chip test of line driver and equalizer in 2. 5gbps baseband copper cable transceiver and equalizer in the 1. 5gbps sata transceiver respectively. the main improvements and innovations in this thesis are as follows : 1 、 to design an analog equalizer tuned on - chip for 2. 5gbps baseband copper cable transceiver ; 2 、 to present an adaptive equalizer for 1000base - cx transceiver ; 3 、 to present an auto - gain control amplifier used in the adaptive equalizer for the 1000base - cx transceiver ; 4 、 to present an adaptive continuous - time gm - c filter in very high frequency for the adaptive equalizer for the 1000base - cx transceiver
論文主要的改進和創新有： 1 、設計了適用於2 . 5gbps基帶銅纜收發器系統片上可調的模擬均衡器電路； 2 、提出了一種新的適用於千兆以太網基帶銅纜收發器系統的自適應均衡器結構； 3 、設計了甚高頻自動增益控制放大器； 4 、設計了一種適用於千兆以太網基帶銅纜接收器均衡的自適應甚高頻連續時間gm - c二階帶通濾波器。 -
These years people are trying to apply control arithmetic more advanced, such as adaptive control, fuzzy control and expert systerm etc, so we decided to design a hardwar & software bench which can be used to test these control arithmetic, it can simply but independently contrl the process of al electrolysis, and also can control the process according to the better arithmetic which is inputted by users
近年來人們又在嘗試採用更先進的控制演算法（比如自適應控制，模糊控制，專家系統等） ，因此我們設計了用於試驗控制演算法的軟硬體平臺，它既可以獨立地對電解槽作簡單的控制，也可以按照用戶輸入的控制演算法進行更加優化的控制。 -
Many test cases are calculated to verify the above study. the cases are either real or standard testing models, including multi - element airfoil, wing - body configuration, cone / cylinder missile model and 3 - d high - lift systems, etc. the results of present calculation are in good agreement with experiment data, and show flexibility and accuracy of the approaches. base on the cartesian grids, this thesis has targeted the development and integration of many algorithms and techniques such as adaptive refinement, omni - tree data structure, hybrid grid method, etc. an analysis software and research methods are designed and developed for the steady - unsteady and viscous - inviscid flow complex systems and configuration
7 .運用上述研究成果和結論，進行了大量算例的實驗驗證，外形范圍包括多種標模與型號，涉及多段翼型、 m6機翼、細長體模型、翼身組合體、兩段機翼增升標模、帶縫翼和襟翼的三段增升翼身組合體等復雜外形，計算結果均與實驗吻合良好，充分說明了本文發展的各種演算法、流場求解、網格生成方法的正確性和魯棒性。 -
Two - stage adaptive noise cancellation algorithm for ultrasonic test of oil pipeline
石油管道超聲檢測信號的兩級自適應噪聲消除演算法 -
In the paper, chapter 1 gives a comprehensive introduction of digital image compressing including its recent status, technical standards, classification in the world. chapter 2 introduces briefly the thought and ii procedure of vector quantization, describes lgb algorithm and vector quantization based on sofm neural network. chapter 3 discusses predictable coding in lossy and lossless aspects, analyzes adaptive predictable coding based on bp neural network, introduces the evaluation of algorithm on neural network in image compression. chapter 4 discusses the applications of mathematical transformation in image compression and does experiments related, analyzes the strategies of image coding in transformed domain. in chapter 5 images are decomposed and represented by wavelet transform, then discusses the characteristics and effects of wavelet functions in image compression, analyzes the wavelet coefficients after images are decomposed ; based on the theories and analyses in the prior chapters, the paper presents an image compression scheme and gives results. the test results shows that the image compression scheme is practical and helpful to map into the local content of images to get rid off redundancy, so that, it can require satisfactory results of image compression
方案首先利用小波多分辨分析性質，對圖像進行小波分解，對分解后各子圖的小波系數進行了統計分析，針對各子圖的小波系數特點，對不同的子圖分別採用不同的壓縮方法，低頻子圖採用基於神經網路的自適應預測編碼，高頻子圖採用基於神經網路的矢量量化編碼，從而實現對圖像數據的壓縮處理。本論文第一章介紹了數字圖像壓縮處理的國內外當前的概況以及其技術標準和分類。在第二章，介紹了數字圖像的矢量量化技術的數學思想和過程，對lbg演算法和基於sofm神經網路的矢量量化進行了闡述、分析。 -
Due to the advantages such as short response time, easy operation, and convenient to comprehend the wavefront modes, the hartmann wavefront sensor ( h - wfs ) is widely utilized nowadays in real - time adaptive optics system, turbulence statistical characterization, optical components test, light quality evaluation, laser atmosphere communication, the wavefront correction of ultrahigh power laser pulses, as well as human eye aberrations measurement. the detection accuracy is important to the performance of the whole optical system. considerable efforts have been performed in the investigation of h - wfs wavefront detection techniques in past years
哈特曼波前傳感器具有實時探測，易操作，可以直觀顯示波前畸變分佈等優點，被廣泛地用作自適應光學系統的波前信息探測和波前畸變補償，大氣湍流統計特性表徵，光學元件檢測，光束質量評價，超強激光脈沖波前整形，激光大氣通信以及人眼象差測量等各個領域之中，其探測精度的高低對整個光學系統的工作性能有著極其重要的影響。 -
With the development of educational measurement theory and computer network technology, there are some underlying changes in educational examination system in china, from traditional fixed testing based on classical test theory ( ctt ) to computerized adaptive testing ( cat ) based on item response theory ( irt )
隨著教育測量理論和計算機網路技術的發展，中國的教育考試也正在發生著悄悄的變化，由傳統的基於經典測驗理論（ ctt ）的固定題目、同一試卷的考試向基於項目反應理論（ irt ）的計算機化自適應測試（ cat ）的方向轉軌。 -
Research on theory model of computer adaptive test
計算機自適應考試的理論模型研究 -
The research on test equating is very important for test equity, item banking, teaching quality assessing, and computerized adaptive test
等值的研究對于考試的公平性、題庫建設、教學質量評價和計算機化自適應測驗具有重要的意義。 -
Research of remote computer adaptive test model based on mobile agent
的遠程網路自適應測試系統模型 -
Besides it can release teachers from burdensome work as test papers organization, marks determinant and result analysis, etc. in now a days, technology of computer - based test are widely used in many kinds of diploma tests, post and rank tests, certificate tests. computer adaptive test ( cat ) bases on item response theory ( irt ) arose in the middle of 1980 ' s. cat is brought forward to dispel the limitation of classical test theory
八十年代中期興起的基於項目反應理論（ irtitemresponsetheory ）的計算機自適應考試（ catcomputeradaptivetest ）系統是針對經典測量理論（ ctt ）的局限性提出來的，能針對不同的考生的答題情況合理選擇後面的出題， 「因材施考」 。 -
According to the review and comparison of today ' s adsl test instruments, the author finds the lack of the traditional test methods and indicates that easy to use, versatility and extensible are crucial aspects to design an adsl test instruments. the author also bring up a new method, the adaptive test method which can be used to test the adsl ' s transmission characters on the whole band dynamically
通過對國內外現有adsl檢測設備的特點進行總結和比較之後，找出了傳統測試方法的不足之處，指出易用性、通用性和可擴展性是設計adsl測試儀表的關鍵，提出了新的adsl線路傳輸特性的檢測方案? ?使用自適應演算法實現對adsl整個頻段的衰減情況動態測量，並且在matlab上進行了模擬。 -
In the test, the test parameters have nothing to do with students " quality, the final mark also be free with test items. the classical test fixs in with speculate habits, but is impacted on test items. because of the computer adaptive test ' s techology is very complex and test items work is too hard, point blank and concision are n ' t same as the classical test, it ca n ' t carry forward as that one hi this paper, compare two kinds of test to seek the best way to measure students quality subjectively and analys after examation. based
本文結合作者開發武漢化工學院計算機基礎課的考試系統中的思考，綜合這兩種考試方法的長處，提出一種符合當前高校現狀的計算機輔助考試系統。考試存在兩種模式：一種為傳統類型，即從試題中抽出考題，採用統一試卷對學生進行測試。另一種則為計算機自適應考試。 -
Besides, the thesis also introduces the implementation of the adaptive test
而且介紹了自適應考試系統的實現。 -
The system consists of sorts of modules, such as on - line learning, on - line adaptive test, on - line question and answer, on - line management of courseware, etc. the system builds an interactive distance education platform
系統集成了網上學習、網上自適應考試、網上答疑、網上課件管理等模塊。該系統構建了一個互動式的遠程教學平臺。 -
And computer adaptive test based on web is one of them. cat meets irt and becomes one of the important researchs about examination system in china. we research the item bank of cat system based on web
Cat是符合irt理論的，已成為國內考試系統研究的重點之一。本文就是以irt理論為指導，以c語言為研究科目進行的基於web的cat系統題庫設計研究。 -
The thesis covers several research aspects in distance education, such as constructionism and adaptive test theory, etc. from the perspective of web - based software development, this thesis mainly discusses the ensemble architecture design of the distance education system
本論文重點討論了基於web的遠程教學系統的設計和實現。論文涵蓋了遠程教育的多個研究領域，包括建構主義學習理論、自適應測試理論等。
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