負相波 的英文怎麼說
中文拼音 [fùxiāngbō]
負相波
英文
negative phase wave-
Study of " ph memory " and activity water ( aw ) in processing of immobilization indicates that former factor has much effect on transformation and the latter just has little effect. permeabilization treating of baker ' s cell with alcohol and ultrasonic leads to lower transformation rate, which illustrates that permeabilization procedure has negative role on biotransformation with whole cell as biocatalyst in organic solvent. in simple dynamics research amount of biocatalysu concentration of substrate and reaction course are considered and all of them have remarkable effect on transformation
Ph記憶、水活度及通透性處理的實驗結果表明, ph記憶對轉化有明顯的影響,水活度對模型反應的影響不大;作為完整細胞生物催化,細胞的通透性可能是傳質阻力的重要組成部分,利用不同濃度的乙醇和超聲波對細胞進行處理,結果表明,在有機相完整細胞生物催化中,通透性處理對轉化產生的是負面影響。And the traveller leopold was couth to him sithen it had happed that they had had ado each with other in the house of misericord where this learning knight lay by cause the traveller leopold came there to be healed for he was sore wounded in his breast by a spear wherewith a horrible and dreadful dragon was smitten him for which he did do make a salve of volatile salt and chrism as much as he might suffice
旅人利奧波德與彼相識。蓋該學生騎士因故服務于仁慈聖母醫院之際,旅人利奧波德曾被一可怕醜陋之用標槍刺穿胸膛,負重傷, 13前往就醫。騎士曾於傷口上塗以大量揮發性油及聖油,予以妥善處置。The theories and design principles of each circuit of the spwm three - phase frequency inverter experiment unit are in detail introduced in this thesis. at the same time some experiment results are shown that include the output voltage and current waves when the load is in resistivity, inductivity or asynchronous motor
文中詳細介紹了spwm三相變頻實驗單元所包含的各電路環節的理論基礎及設計過程,並給出了調試結果,如負載為阻性、感性和異步電動機時,實驗單元輸出的電壓和電流波形。The density of mucopolysaccharide increased upon complete sonication more for the treated rats than for the controls, and this was closely related with the improvement in histopatho - logical findings, but inversely with the changes in arthritic severity
在治療組中黏多醣類的密度在超音波治療前後及和控制組比較均有明顯的上升,而且於超音波治療結束時之黏多醣類密度與組織病理學上的修護有密切相關;同時黏多醣類密度的變化與嚴重度指標的改變成負相關。There is great change of negative current component when it happens the line - open fault. it is marked as the occurrence of the fault. and it can be concluded the phase characteristic of negative current in the line. in the transient course, there are plenty of harmonics in the fault line. through the transient analysis, it is drawed that the amplitude of each harmonic in fault phase is greater than other phases. harmonic current in fault line is far greater than other normal lines
發生斷線故障以後,線路中會出現負序電流的突變,可以作為故障啟動判斷的標志,並且通過分析得出了故障時負序基波電流的相位特點。在故障暫態過程中,故障電流中含有大量豐富的諧波成分,各次諧波在故障期間有突變,並且衰減很快。To utilize the advantages of dsp chips, the system should be computing sources economical. according to digital signal processing theory, the poly - phase fir can help reduce the workloads of the ddc / duc. therefore, adding the complex carrier mixers, the channelization system ( a method of using a single wideband facility to transmit many relatively narrow - bandwidth signals. by subdividing the frequency spectrum used in the wideband channel ) can be formed utilizing the characters of fft
為了使開發出的軟體可以適用於高速dsp器件開發,節省系統資源,課題首先從數字信號處理的理論進行分析,得出可以利用抽樣率轉換的數字濾波器的特點,即多相濾波實現數字上下變頻計算負擔的減小,之後進一步將多相濾波器與頻譜搬移部分結合,通過公式的推導,得出可利用快速傅立葉變換的特點實現多路信號的通道化發射和接收的處理模型。1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %
從功率單向流動角度出發,提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲,在調制系數0 . 1 m 0 . 5情況下,控制移相角按正弦規律變化,使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號,經過整流、濾波、低頻逆變,從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載,移相全橋具有超前橋臂零電壓開通,滯后橋臂或者零電壓開通( _ 0 )或者零電流關斷( _ 0 )的軟開關特性,而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high
針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析,變頻器輸出的電壓波形諧波大,沖擊大,電壓上升率高達6600v / s ,是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低,額定頻率在8 - 20hz ;調速范圍寬,最低運行頻率低到0 . 5hz ,起動次數相當頻繁,每小時高達600 - 800次,沖擊負荷大,過載能力要求較高。The incident wave height h1 / 3 is in the range from 0. 1m to 0. 25m, and the peak period tp in the range from 1. 0s to 2. 0s. the ratio of s / h1 / 3, which refers to the subface level of wharf deck ( s ) to the incident wave height ( h1 / 3 ), is between - 0. 1 and 0. 7. three different shore connecting types : open - piled, permeable slope with armored 1ayer of dolosse b locks and impermeable slope with armored layer of concrete plate, are set in the experiment for the research on the effects of boundary condition with different shore connecting types on the wave impact
本文的物理模型試驗在大連理工大學海岸和近海工程國家重點實驗室的大波流水槽中進行,試驗中選用的隨機波靶譜為改進的jonswap譜,入射波波高h _ ( 1 / 3 )范圍為0 . 1m 0 . 25m ,譜峰周期t _ p范圍為1 . 0s 2 . 0s ,碼頭面板的相對凈空(碼頭面板底面距離靜水面的距離s與入射波波高h _ ( 1 / 3 )的比值)范圍為- 0 . 1 0 . 7 ,其中s / h _ ( 1 / 3 )為負值時表示碼頭面板底面位於靜水面以下。The pwm control of duty cycles acts as an electric transformer which regulates the amplitudes of equivalent input voltage and equivalent output voltage, so that both positive and negative amplitudes of equivalent input voltage are equal to those of equivalent output voltage
對器件占空比的pwm調節,相當于在電路中加入一個電子變壓器,使得輸入方波電源和輸出方波電源的正負電壓幅值分別匹配。On the basis of classifmg deflation into moderate deflation and harmful deflation, this paper summarized the achievements of the deflationary research, and made a thorough inquiry into the harm, cause and treatment of deflation. the paper analyzed the fallacy of composition, and pointed out that the fallacy of composition owns two characteristics of self - intensifing and mutual - promoting, which make deflation continue and aggravate. the asymmetry between individual and total is another basic characteristic owned by the fallacy of composition, which changes the economic fluctuation if the fallacy of composition develops continually
本文對「合成謬誤」這一經濟現象進行了初步分析,指出合成謬誤具有自我強化和相互促進的特點,在經濟遭受負向外部沖擊的情況下,這使總有效需求累積性收縮,通貨緊縮因此得以自我維持,並被不斷加深;合成謬誤發展的結果是引起短期內經濟波動發生轉換,而這正是由於合成謬誤所具有的個量與總量之間存在著非對稱性這一根本特徵所決定的。Based on the six - port relative power theory that for a given load the relative power ratios of different ports are left unchanged with the input power to the six - port varied, characteristic parameters of detectors can be obtained through the least - square method
根據六埠相對功率理論即對某一負載各埠相對功率比值不隨輸入功率變化,由最小二乘法得到檢波器的特徵參數,結合四標準法,確定六埠網路的系統常數。Therefore, the power department and users are concerned aboui harmonic and reactive compensation. the power department usually manage compute and measure the electric net " s harmonic condition and connected or new - connected harmonic load. and need to measure the harmonic vol tage current in some electric net " point. then, by manual making an in - depth analysis and statistics on measured - data, it can reduce harmonic harm on public not to take some effective measures
電力部門通常在實際中,需要對電網的諧波狀況、已接入和新接入系統的諧波源負荷進行管理、計算及測量,需要對電力網路各點的諧波電壓、電流實際水平進行測試,然後對測試數據進行人工分析統計,並以此採取相應措施降低或減少諧波對電網的危害。Velocity variation is positively correlated with crust thickness and negatively correlated with earth ' s heatflow. the linear regression equation of velocity, crust thichness and heatflow is obtained. the regression coefficient dv / dp convert
同時地震波速廠與地殼厚度h呈明顯的線性正相關關系,與大地熱流呈負相關關系,並得到三者的線性回歸方程,回歸系數dv dh換算成bv op ?The results indicated that the change of capital structure of chinese listed companies is counter - cyclical and financial deepening promotes the capital structure optimization of listed companies in the certain degree. empirical analysis also show there is a negative relationship between stock market scale, actual loan interest rate, profitability, fluidity, income volatility and capital structure. we also can see a positive relationship between fir, the bond market scale, the property structure, growth opportunities, size and the capital structure
結果表明我國上市公司的資本結構變動與宏觀經濟周期之間呈逆向變動;金融深化在一定程度上促進了上市公司資本結構的優化;股票市場規模、實際貸款利率、盈利能力、流動性、收益波動性與資本結構負相關;金融相關比率、資產結構、成長性、公司規模與資本結構正相關。Based on the mixture distribution hypothesis ( mdh ) theory, the paper conducted an empirical study into the daily liquidity and volatility of three futures, i. e., bronze, aluminum and natural rubber, and discovered that the trade volume and volatility display a significantly positive correlation, there is a significantly negative correlation between the open interest and volatility, and liquidity ratio and volatility have no significant correlation
摘要根據混合分佈假設理論( mdh )等前人研究成果,及對中國期貨市場三個主要期貨交易品種銅、鋁和天然膠期貨的日流動性和日波動性的實證研究,可以發現:交易量與波動率有顯著的正相關關系,持倉量與波動率有顯著的負相關關系;而流動性比率與波動性卻並沒有顯著的關系。Secondly, the content, evaluating guideline system of the food security cost were discussed, and the quantitative analysis of the food security cost at the view point of center finance expend from reform and opening of china was given. threely, the influnce factors of chinese food security under wto were analyzed thoroughly, and the new stratagem of food security - - big food and little grain ration was proposed, and the food security and its types were discussed. the article thought that ensureing the food security hi the reason cost is the process both food security control was improved and microcosmic foundation was intensified increasingly, that the moderation scale of chinese food security repertory, that the rules, which includes negative correlation alteration of agriculture proportion and modern, etc. must be followed, and that the project of water from south to north must give attention to two or more things water need of food produce ability and output
認為中國糧食安全與成本優化的過程是一個不斷改進糧食安全調控工作的過程,也是使微觀基礎得以強化的過程;按照社會可承受2的糧食可供波動與控制糧食儲備成本的標準計算,中國糧食安全儲備的適度規模為48872千噸;應根據「農業比重與農業現代化的負相關變動」 、 「比較優勢與農業保護的平衡運用」 、 「大糧食消費與增值的備擇性」 、 「產業結構調整與糧食產能保護的兼容性」等要求建立與實施旨在謀求糧食安全與產業結構調整協調的評價指標體系;北方地區對中國糧食生產與增產具有很強的正相關性,然而它正遭受著越來越嚴重的水缺乏的影響;南水北調工程必須兼顧糧食產能的用水需要,以有效緩解糧食需求的相對穩定與糧食產量波動相對較大之間的矛盾,從而達到減少儲備、節約成本的目的。Seasoned equity offerings of chinese listed firms were underpriced by an average of 11. 59 percent during last four years, from 1999 to 2002, with the discount decreasing substantially over time, which is opposite to the increasing tendency in american listed firms. consistent with uncertainly and asymmetric information theory, underpricing rate is positively related to the stock price volatility and the p / e ratio when issuing the seasoned equity offers
根據理論分析的結果,本文假設了這6個影響因素與上市公司增發折價率之間的相關關系:增發公司股價的波動性,增發時公司股票的市盈率和相對增發規模與增發折價率呈正相關關系;上市公司增發時的總市值、股本結構和股價與增發折價率呈負相關關系。This paper uses theory of correlation analytic method to detect and locate the leakage of oil conveying according to the negative press wave method
摘要主要依據負壓波方法,應用相關分析法理論對輸油管道進行泄漏檢測和定位。The fact that grain of sand is fine or silty, with thin layer and little - scale scours means that the water energy was low. grain analysis tells its transiting character between turbulent flow and drag flow with the same character as sub - fan. in the core, every sequence is positive rhythm and debris flow that is not developed in delta was also found
巖電關系分析表明,孔隙度與聲波時差成正相關關系,與自然伽瑪呈負相關關系,而滲透率與孔隙度具有較好的指數關系,據此建立了解釋模型,在測井數據標準化的基礎上進行了測井解釋,較為準確地反映了井點處的物性特徵。分享友人