較差照相方法 的英文怎麼說
中文拼音 [jiàochāzhàoxiāngfāngfǎ]
較差照相方法
英文
differential photographic method- 較 : Ⅰ動詞1 (比較) compare 2 [書面語] (計較) dispute Ⅱ副詞(比較) comparatively; relatively; fair...
- 差 : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
- 照 : Ⅰ動詞1 (照射) illuminate; light up; shine 2 (反映) reflect; mirror 3 (拍攝) take a picture ...
- 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...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 照相 : 1 (拍照) take a picture; take pictures; take photographs; take photos; photographing base; phot...
- 方法 : method; means; way; technique; process; procedure; plan; device; recipe; fashion; tool; maneuver
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There are concerns that harvesting wild shrimp for aquaculture may deplete local shrimp populations or cause by - catch problems, hi addition, the use of wild shrimp poses a serious risk to the shrimp aquaculture industry because they may be carriers of virulent viruses. the life cycle of chinese shrimp has been closed, paving the way for the establishment of genetic improvement programs. the use of dna markers can contribute significantly to the development and implementation of genetic improvement programs
本文嘗試利用aflp及其相關技術sampl在中國對蝦中篩選相關分子標記,並通過比較抗病中國對蝦(第四代抗病蝦)及對照(前幾代抗病中國對蝦、野生中國對蝦)譜帶差異,試圖找到與中國對蝦生長速度、抗病等性狀相關的分子標記或主效基因,為中國對蝦的遺傳圖譜構建、 qtl作圖、分子標記輔助選擇及其他育種方法奠定遺傳學基礎,同時對中國對蝦性別相關標記和sampl法發展微衛星標記作了一些探討。New genetic changes has appeared in the selected shrimp generation, at the same time, no generation - specific bands were found. in addition, genetic variation among g2, g3 w1, hg were estimated by aflp and sampl, as shown in the umpga dendrogram, g2, g3, g4 were clustered into one group, and then g3, g4 were clustered. whether the data from aflp and sampl were calculated together or respectively, the results were similar with only a little difference from aflp
另外,應用aflp和sampl對g2 、 g3 、 g4 、 w1及一個日照養殖群體hg進行了比較,將aflp 、 sampl條帶統計到一起聚類分析顯示g2 、 g3 、 g4聚為一支與w1與hg的聚合支首先分開, g3 、 g4再聚為一支與g1分開,顯然g2 、 g3 、 g4聚合趨勢與上述sampl分析結果相似;除aflp 、 sampl條帶統計到一起計算外,對上述g2 、 g3 、 g4 、 w1 、 hg相同樣本的aflp 、 sampl條帶分別進行了運算,可以看出兩種方法結果相似,單一技術計算結果與兩者聯合處理結果相似,但aflp條帶經popgene軟體處理所得umpga系統樹卻有所差別。The contents include : based on the previous research and the data of experimentations, the author researches and develops a kind of satisfactory semi - empirical formula of nonlinear temperature distribution, and calculates the temperature stress of rigid - framed arch bridge by the fem. the temperature effects of bridge structure by annual and sunlight temperature difference are discussed, it indicates that the temperature effect of annual temperature difference is small but the temperature effect of sunlight temperature difference is great and the temperature stress along beam depth resulted from sunlight temperature difference is nonlinear. with the comparison between the temperature effects of different position of bridge, the results show that where the section of bridge is small, the temperature stress of it is large
本文主要包括以下內容:從理論上研究並結合實測資料發展了一種比較理想的半經驗溫度場非線性分佈公式,並將有限元方法應用於剛架拱橋結構溫度應力的計算中,對橋梁結構進行整體溫度應力分析;討論了年溫差和日照溫差引起的橋梁結構的溫度效應,表明年溫差引起的溫度效應較小,而日照溫差引起的溫度應力較大且沿梁高呈非線性分佈;分析比較了橋梁結構各個部位的溫度效應的大小,可知截面越小溫度拉應力越大,受力越不利;並對箱梁結構由於構造不同引起的縱向與橫向的溫度效應大小進行了探討,發現在頂板下緣也會出現相當大的溫度拉應力,並且梗腋的存在反而增加了頂板底部的溫度拉應力;還對幾種相近的剛構式橋型的溫度效應進行了分析對比,總結了這些橋型針對溫度效應的優劣,並提出相應的針對性措施。Although economic and population specialists and scholars both in abroad and at home have made extreme progress on research the question of rural labor since they studied it very long ago, as far as china is concerned, based on the following three aspects, firstly, the national condition of our country determined that the foreign theory such as lewis theory might instruct us but we ca n ' t use these theories without rectification ; secondly, in china, our research about this question prefer the qualitative analysis to the quantitative analysis ; thirdly, the research on the labor utilization and shift in this specific area, that is, in the mountainous rural area which covers 69 % of our mainland and occupies 56 % of population is absolutely scarce in present ? to make up for the three deficiencies, this paper selects the econometrics analysis, uses investigation data and by virtue of tsp software, establishes a model where shift labor is the dependent variable and the citilization ratio, industrial structure, the income gap between city and country, the rural infrastructure construction, the labor ' s aptitude and the population ' s natural growth ratio are the variableso through economic, statistical and econometrical test, the conclusion is attained : the income gap between city and country and the citilization ratio are the two most important fectors which affect the labor ' s utilization and shift in mountainous rural area -, the rural infrastructure construction and the labor ' s aptitude are the two relative important factors which affect the labor ' s utilization and shift in mountainous rural area while the rural industrial structure and the population ' s natural growth ratio are the two least important factors according to this, this paper puts forward several suggestions that the income gap between city and country, citilization ratio, rural education, rural industrial structure and agricultural mechanization should be carefully treated with on studying the question of labor utilization and shift in mountainous rural area. finally, this paper points to several suspending problems about this research in order to get the concern of specialist and scholars
盡管國內外經濟和人口學方面的專家與學者很早就開始了對農村勞動力問題的研究並取得了極大的進展,但是,我國在研究農村勞動力問題時,基於三點:其一,我國國情決定了國外的理論例如劉易斯理論,雖然對研究我國的農村勞動力問題具有指導意義,但卻不能照搬這些理論;其二,從國內看,我國對該問題的研究重視定性分析而定量分析明顯不足;其三,缺乏對我國占國土面積69 、人口56的山區農村這一特殊區域內的勞動力開發利用及轉移的專門性研究。為了彌補這三個缺憾,論文採用經濟計量學的數量分析方法,利用實際調查資料,藉助tsp軟體,建立了以外出勞動力數量為被解釋變量,城市化率、農村產業結構、城鄉收入差距、農村社會基礎設施建設、農村勞動力素質以及人口自然增長率六個變量為解釋變量的模型,通過對該模型進行經濟學、統計學、經濟計量學三個方面的檢驗,得出如下結果:城鄉收入差距和城市化率是影響山區農村勞動力開發利用及轉移的最重要的兩個因素;農村社會基礎設施建設和農村勞動力素質是較為重要的兩個影響因素;而農村產業結構和人口自然增長率相對來說是較不顯著的影響因素。據此,本文提出了在研究山區農村勞動力開發利用及轉移問題時,應慎重對待城鄉收入差距、城市化水平、農村勞動力素質、農村產業結構、農業機械化五個問題。We can see the effect in maximum by comparing two photos taken by six months apart
最容易看到恆星視差的方法,是比較兩幅相隔半年的星空照片。When the load of agriculture and illume is forecasted, the load is decomposed into stationary terms that is not related to meteorologic factors and random term that is related to meteorologic factors by use of wavelet analysis. because the forecasting accuracy of stationary term is higher and the amplitude of random term, although it is difficult to forecast, is smaller, so the impact of forecasting error bringing about by random factors on final forecasting result is weakened
在預測不同行業的負荷時,利用小波分析的方法對農業和照明負荷序列進行分解,然後將頻率較低的部分視為與氣象因素無關的穩定項進行處理,將頻率較高的部分視為與氣象因素相關的隨機項進行處理,由於穩定項預測精度高,隨機項雖較難預測但幅值較小,因此削弱了隨機因素帶來的預測誤差對最終結果的影響。The main works are described as follows : ( 1 ) we have summarized the latest research achievements and development of fractal theory and the applications in image processing domain and discussed and studied the definition, principle and algorithm of fractal and fractal dimension ; ( 2 ) aiming at the disadvantages of dfbr based edge detection method, an algorithm based on fractal intercept feature was put forward ; moreover, aiming at the bad anti - noise performance of traditional methods, a edge evaluation method was introduced to evaluate the performance of the algorithm and that of sobel - based algorithm quantificationally ; ( 3 ) furthermore, we proposed a novel method based on slope feature and intercept feature, then compared the performance with that of intercept - based method
通過對近年來國內外學術界對分形理論及其在圖像處理領域相關應用問題的研究成果和最新進展的搜集、整理和總結,對分形及分形維數的定義、原理、演算法以及在圖像處理上的應用進行了較為系統的研究和探討; 2針對基於dfbr場邊緣檢測典型演算法的缺點,採用了一種基於分形截距特徵的圖像邊緣檢測演算法,取得了較為滿意的結果;並針對傳統方法抗噪性能差的缺點,引入一種基於參照圖的邊緣評價方法,並對此演算法性能與傳統sobel演算法進行定量分析對比,實驗證明該演算法是有效的; 3分享友人