種群估計 的英文怎麼說

中文拼音 [zhǒngqúngūjì]
種群估計 英文
population estimate
  • 種 : 種名詞（姓氏） a surname
  • 群 : Ⅰ名詞（聚在一起的人或物） crowd; group Ⅱ量詞（用於成群的人或物） group; herd; flock
  • 估 : 估構詞成分。
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 估計 : estimate; evaluate; take stock of; size up; calculate; appraise; reckon; estimation; forecast
  1. Studies by hargrave and geen estimated natural community graz - ing rates by measuring feeding rates of individual zooplankton species in the laboratory and then computing community grazing rates for field conditions using the known population density of grazers

    由哈格雷夫（ hargrave ）和吉恩（ geen ）所進行的研究，對自然條件下的群落食草比例進行了估計，其手段是通過測量出實驗室內單獨的浮遊動物種類的結食比例，然後利用已知的食草動物種群密度，計算出實地狀況下的群落食草比例。
  2. The mean effective population size could be estimated as a harmonic means of the ne.

    估計出平均有效種群大小，作為所有世代Ne的調和平均值。
  3. The mean effective population size could be estimated as a harmonic means of the ne

    估計出平均有效種群大小，作為所有世代ne的調和平均值。
  4. The bisonc burnup library is replaced to facilitate the computation of the burnup process with complicated burnup chains. we have made and evaluated the new library ( hendl ) which contains 139 kinds of nuclides with 175 groups for neutron and 42 groups for gamma, 15 kinds of neutron reactions and p0 - p5 expansion. the revised code which we call bus - id is more adaptable to the computation of hybrid reactor for its fuel breeding and the transmutation of the hlw

    並且在一維輸運及燃耗計算程序bisonc的基礎上，提出用新的數據庫（ hendl ）代替原有的bisonc數據庫， hendl庫考慮了更加全面的燃耗過程和多種燃料循環方式，通過修正讀入的核截面數據庫中的參數，考慮共振自屏效應，製作並且評估了新的含有139種核素、多種反應截面、 175群中子42群光子、 p _ 0 - p _ 5展開的中子反應數據庫，開發出新的程序bus - 1d ，使得更能適應聚變?裂變混合堆的燃料增殖、高放長壽命核廢料（ hlw ）的嬗變等計算的要求。
  5. To evaluate the effects of drift in the classical sense, the population size should be known.

    要用正統含義估計播遷的效益，就應知道種群的大小。
  6. Species diversity of carpinus pubescens community and its

    雲貴鵝耳櫪群落物種多樣性及其刀切法估計
  7. By using the method of upper and lower solutions, some properities about global solution, blowing - up and the range of the time of blowing - up are discussed to a three species mutualistic diffussion model

    摘要運用上下解方法討論了一類三種群互惠擴散模型整體解存在的條件、解的爆破性及爆破時間估計。
  8. Through having done field surveys in the campus of chongqing university, this paper tested classroom indoor and outdoor climate parameters in june, july and september of 2005, it used questionnaire to acquire subjects ’ thermal sense, draft sense and humidity sense in classroom each month, and programmed composition to compute predicted mean vote and compared pmv with the field testing results of mean thermal sensation vote. it is discovered that pmv is overvalued the college student ’ thermal sensation in chongqing. it finds that people in chongqing adapt to the typical summer hot and winter cold sweltering weather

    對重慶地區高校教室的現場調查，測試了重慶大學2005年六月、七月和九月教室室內外熱環境參數，通過採用問卷主要掌握了受測對象教室里的冷熱感、氣流感和潮濕感，通過編製程序求得預測平均熱感覺評價pmv的值，比較pmv和問卷調查得到的平均熱感覺mtsv ，發現pmv預測值高估了重慶地區高校學生的熱感覺，這里的人群對重慶這種夏熱冬冷地區比較典型的悶熱氣候具有一定的熱適應性，對現場問卷調查的結果進行分析，得出了室內空氣溫度、氣流速度、相對濕度與人體主觀感覺之間的回歸曲線，發現重慶地區高校學生熱中性時的空氣溫度為25 . 5 ， fanger根據歐美人群調查得到的公式計算出的預測熱感覺為中性時的空氣溫度為25 . 0 ，兩者相差0 . 5 。
  9. Abstract : the sample breakdown point of a test is defined as the smallest proportion of arbitrary outlier in the sample that reverses the test decision. in this paper, wegive the sample breakdown point of a test for maximum likelihood estimate of exponential distribution parameter and analyze the asymptotically normal characteristic of the sample breakdown point

    文摘:如何量化一種統計方法對異常值的不敏感性一直是穩健統計研究的一個重要課題.檢驗的樣本崩潰點是樣本中能逆轉判決的離群值的最小比例.在研究相關文獻的基礎上，計算出指數分佈參數極大似然估計檢驗的樣本崩潰點，並分析了樣本崩潰點的漸近正態性，為量化統計方法的穩健性提供了一種新的途徑
  10. In 1900, the population of chiru was estimated to be around one million animals. there are now though to be fewer than 75, 000 animals left in the wild

    1990年，藏羚羊種群估計約有100萬只，但現時野外只餘下少於75 ， 000隻。
  11. The next further research points will include the detail requirement of three group consumers and how to make a optimal architectural plan, in order to improve the utility effect of public science museum

    對於後續研究，可將本研究之三種族群在所評估之總消費額中，詳細規劃科學博物館之營運項目，並配合研擬建築計畫，依此將可提高公立科學博物館之使用效益。
  12. A perturbation method by tight - binding approximation which provide the relation of phase constant and angular spectrum of fields of in - waveguide is presented. the strip width of phase constant can be given. on the other hand, the group delay - time due to the k dispersion in single - mode transmission can also be estimated

    提出一種利用緊束縛近似的微擾法計算陣列波導的相位常數與輸入光角譜的關系，由此算出相位常數的帶寬，並利用衍射方法估算單模傳輸中k色散引起的群延時。
  13. Using better prior estimate, the theory of brower degree and coincidence degree, the existence of positive periodic solution of a kind of neutral population model with multiple delays was studied, some sufficient conditions were obtained, which improve of the relational theorem

    摘要通過更精確的先驗估計，利用重合度理論中的連續定理，研究了一類時滯種群模型的周期解，獲得了這類模型存在正周期解的充分條件，所得結果推廣了有關結論，並使條件有所減弱。
  14. Elevation, features of slope, vegetation, tree and shrub coverage, height, panda traces ( droppings, dens, individuals, gnawing bamboo stems ) in each plot were recorded to characterize the population size of the giant panda, their habitats and impacts of human disturbance on pandas at wanglang

    種群數量估計中，以每塊糞便中bsf的平均長度作為它的bsf平均長度，採用多重比較和相似系數方法對bsf平均長度進行分析和比較，識別糞便是來自同一個體還是不同個體，從而估計保護區的大熊貓種群數量。
  15. A study of assessing impacts of human disturbance on the giant panda and its habitats at the wanglang nature reserve was conducted

    本項研究的目的是估計王朗大熊貓種群數量、探討它的生境選擇和人類干擾對大熊貓及其生境的影響。
  16. A fast non - iterative global motion estimation ( gme ) algorithm is disclosed for estimating the perspective transform global motion parameters from the motion vectors ( mv ) obtained from the block matching process that includes grouping a plurality of motion vectors in the input video stream into a predetermined number of groups of motion vectors, calculating a set of global motion parameters from each of the predetermined groups of the motion vector, and processing the set of global motion parameters generated from the calculation to obtain a final estimation

    本發明系關於一種快速非反覆式全域移動估測方法，以由區塊匹配程序中所獲得的移動向量去估測一透視轉換全域移動參數，其包含一分組步驟，將該輸入影像資料流中的多個移動向量區分成具有預定數目的移動向量之群組?一計算步驟，系依據每一群組中之移動向量，求取該等群組之全域移動向量參數值?一處理步驟，系處理計算步驟中所計算出的每一群組之群組全域移動向量參數值，以獲得一最後之全域移動向量。
  17. Estimating the number of rare species in woodland vegetation by multisampling

    對地面植被群落中稀有植物的種類數的多重抽樣估計
  18. The distributions of shell flatness and protoconch whorl number are random, we could not find any notable distinction in the shell flatness of snails on surfaces of different inclinations. in a later process, using the three shell factors performed a hierarchical cluster analysis

    Cathaicacavimargo種群殼扁度和原殼螺層數的分佈是隨機的，分析結果中未看到殼扁度事先所估計那樣水平地面種群貝殼扁平，而垂直巖壁種群貝殼凸起情況。
  19. The fate of polar bears could be even bleaker than that estimate, because sea ice in the arctic might be vanishing faster than the available computer models predict, the geological survey said in a report aimed at determining whether the big white bear should be listed as a threatened species

    因為北極海冰正在消失的速度要比目前計算機模型得出的還快，所以北極熊的命運可能會比估計中的更希望黯淡，在一份旨在決定是否應該把這種身形龐大的白色熊應當歸為受威脅種群的一份報告中該組織表示。
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