genetic classification 中文意思是什麼

genetic classification 解釋
成因分類
  • genetic : adj. 1. 遺傳(學)上的。2. 發生的,發展的;創始的。adv. -ically
  • classification : n 1 選別;分等,分級;分選。2 【動、植】分類(法)。 〈分類級別為: phylum 【動物;動物學】及 div...
  1. Both the metallogenic pressure and temperature are relatively lower, and the genetic classification of the ore deposit is epithermal deposit

    成礦的溫度和壓力都比較低,礦床的成因類型為淺成低溫熱液礦床。
  2. This thesis studies the tidal creek system on the prograding mud flat in jiangsu province based on 16 pieces of mss, tm and spot images from 1973 to 2001, and analyses the growth, genetic classification, evolution and affecting factors of tidal creeks

    本文結合1973年至2001年共16張不同時相的衛星影像對江蘇淤長型淤泥質潮灘上的潮溝系統進行了研究,對潮溝的發育、形成、演化和影響因素進行了初步探討。
  3. In this study, genetic diversity of various strains of spirulina platensis is analyzed with rapd molecular marker and antibiotics marker, the results are compared with their morphologic characters, aimed at constructing a more reasonable classification criterion and knowing more about the genetic background of spirulina. additionally, it is found that under the cultivated condition the linear filament can retransite to the normal curved one which is similar to original spiral filament

    本論文利用rapd分子標記及抗生素抗性標記分析了不同鈍頂螺旋藻品系的遺傳多態性,並與其形態學特徵進行了比較,以期建立更合理的螺旋藻分類方法及加深對螺旋藻遺傳背景的了解;同時,發現在養殖環境下變直藻絲體可以回變為正常螺旋形態的現象。
  4. In this work, some species of palmae cultivated in the xiamen botanical garden had been selected to be analyzed their genetic diversity with rapd ( random amplified polymorphic dna ) technique. according to the result of genomic dna amplified with pcr ( polymerase chain reaction ), genetic distance and similarity between different palm species were calculated on nei " s estimate of similarity and genetic distance. a primary but first time research at the phylogenetic relationships of some genera and species, the molecular classification and identification of some puzzling species of palmae was carried out through upgma ( unweighted pair group mean average ) cluster analysis of the genetic distance together with comparative study of the morphological structure characteristics

    本文在初步調查分析了棕櫚科植物在我國的自然分佈、引種馴化情況以及該類植物在廈門地區栽培應用狀況的基礎上,首次採用rapd分子標記技術,對廈門萬石植物園引種的一些棕櫚科植物的遺傳多樣性進行了研究,根據pcr對基因組dna擴增的結果,用nei ' s相似性系數計算了不同植物間的遺傳距離和遺傳一致度,通過對遺傳距離的upgma聚類分析,並結合形態分類的特點,對棕櫚科植物的屬、種間的系統分類關系和一些疑難種的分類鑒定進行了初步研究。
  5. The who classification states that acute lymphocytic leukemia ( all ) should be classified by the pattern of reactivity of cell to a panel of lineage - associated antibodies and, where possible, genetic abnormalities. the expression of cd antigens on leukocytes is currently determined by flow cytimertry, which is expensive and labor - intensive, requiring 5 - 20ul quantities of fluores - cently labeled antibodies and allowing concurrent analysis for a limited number of cd antigens, usually three to four. from clinical point of view, an efficient method is required for analysis of a large number of samples in a single experiment

    我們設計了一種新型的細胞晶元,其原理是充分利用玻片的硬度高,透明性好的特點,應用細胞膜表面不同的抗原物質,與包被在玻片上的不同抗體發生特異性結合,通過一次實驗可以將被測細胞懸液中不同膜表型的細胞分離、固定在同一張玻片的不同特定區域,保持了細胞的完整性及活性,又可通過簡單的操作一次將多細胞懸液進行免疫分群。
  6. Application of genetic programming paradigm in classification

    遺傳程序設計方法在分類問題中的應用
  7. Referencing between the genetic soil classification of china ( gscc ) and the chinese soil taxonomy ( cst ) for gscc - high - mountain - soils was conducted and their quantitative and spatial distribution characteristics within cst were studied, based on the 1 : 1m soil database of china, which consists of 3 parts, 1 : 1m digital soil map, soils profiles attribution database and soil reference system of china

    摘要本文利用最新建立的1 : 100萬中國土壤數據庫,研究了我國發生分類高山土與中國土壤系統分類的參比及其在系統分類下的空間分佈和數量特徵。
  8. From 1950s , geographical - genetic classification theory originated from the former soviet union exerted its extreme impact on soil classification of china

    在地理發生分類體系中,按生物氣候氣候條件,熱帶、亞熱帶地帶性土壤分別為燥紅土、紅壤、黃壤、赤紅壤和磚紅壤。
  9. According to the genetic classification, fracture system can be classified as follow : structure fracture, regional fracture and shrinkage fracture

    裂縫系統按其成因分類可分為:剪裂縫、擴張裂縫和拉張裂縫。按地質分類可分為:構造裂縫、區域裂縫、收縮裂縫。
  10. Based on the results of classification of cultivated soybean varieties in china, the indexes of genetic diversity about the various soybean types in various provinces were calculated. the centre of genetic diversity and the centre of origination were located

    利用中國大豆品種資源數據庫所記錄的各品種質量性狀和數量性狀,並結合中國大豆品種資源分類研究結果,用群體遺傳學研究方法計算我國各省(市、區)大豆品種資源各種類型的遺傳多樣性指數,分析中國大豆品種資源的遺傳多樣性中心,並依此推論中國栽培大豆的起源中心。
  11. In the past several decades, all kinds of research work have been carried out on the genetic resources of genus malus species. therefore, much progress has been made concerning the studies of the number of species, geographical distribution, morphology, classification, cytology, cell biology, reproductive biology and resistance characters to various environmental stresses

    在過去的幾十年中,我國的蘋果資源研究工作者對蘋果屬植物的種類、數量、分佈、形態學、系統學、孢粉學、細胞學、生殖生物學和抗逆境生物學特性等眾多方面開展了廣泛、系統和深入細致的研究,取得了許多重要成果,但也存在明顯不足。
  12. Programs such as animal identification, dairy herd improvement, type classification and sire evaluation lead to long term genetic improvement in a population. this in turn will increase profits to dairy farmers

    目前開展的一些項目如牛隻編號dhi測試奶牛體型外貌評定和青年公牛後裔測定項目將促進整個牛群長期的遺傳改良,這將能增加奶農的收入。
  13. The obtained haplotypes are compared, aligned and analyzed by dna sequence analysis software package dnastar, dnasp, mega, to calculated residue composition, polymorphic sites and genetic distance, to consider the types and rates of residus substitution and to create neighbor - joining ( nj ) phylogenetic trees and determine phylogeny of the classification taxa involved in the research. 5

    5 、盲榕科昆蟲cytb基因序列分析方法和分析結果直接反映著被試分類單元的遺傳物質的差異和遺傳本質,是最為客觀的系統分類依據,所以可應用於盲峙科的種類的鑒別、種群的分析、種上類群的劃分以及科級階元水平系統發育關系的確定。
  14. Abstract : based on the brief introduction of the ohgin, distribution and the collection and conservation of the germplasm resources of apricot, mainly on the variety classification, pollination biology, evaluation of palynology and molecular biology, the genetic and variation characters of hybrid progeny, breeding objectives and technique were reviewed. some research programmes needed to be studied in this field in the future were suggested

    文摘:在簡要介紹杏的起源、分佈及種質資源收集保存的基礎上,著重對杏品種資源的分類、授粉生物學、孢粉學及分子生物學評價以及杏雜種後代遺傳變異特點、育種目標及育種技術進行了綜述,並提出了今後的研究方向。
  15. The main factors of probabilistic neural network including the hidden neuron size, hidden central vector and the smoothing parameter, to influence the pnn classification, are analyzed ; the xor problem is implemented by using pnn. a new supervised learning algorithm for the pnn is developed : the learning vector quantization is employed to group training samples and the genetic algorithms ( ga ’ s ) is used for training the network ’ s smoothing parameters and hidden central vector for determining hidden neurons. simulations results show that, the advantage of our method in the classification accuracy is over other unsupervised learning algorithms for pnn

    本文主要分析了pnn隱層神經元個數,隱中心矢量,平滑參數等要素對網路分類效果的影響,並用pnn實現了異或邏輯問題;提出了一種新的pnn有監督學習演算法:用學習矢量量化對各類訓練樣本進行聚類,對平滑參數和距離各類模式中心最近的聚類點構造區域,並採用遺傳演算法在構造的區域內訓練網路,實驗表明:該演算法在分類效果上優于其它pnn學習演算法
  16. The results are compared with the genetic algorithm in combination with the k - nearest neighbor ( knn ) classification rule

    最後,將比較的結果再與基因演演算法結合k個最近鄰法進行比較。
  17. The paper changes the discretization problems to exploring the best cutting points based on genetic algorithms for discretizing the set of continuous attributes according to the basic concepts of rough set theory, then removing the redundant cuts and producing small discretizations which maintain the required capability of classification

    本文將離散化問題轉化為分割點的尋優問題,綜合考慮多個屬性之間的依賴關系,利用遺傳演算法尋找給定區間數的最優分割點,利用粗糙集理論的基本分類思想,刪除冗餘分割點。
  18. Abstract : the application of random amplified polymorphism dna ( rapd ) to aspects of cultivar identification and classification, pedigree analysis, genetic map construction, hybrid identification, mutant detection, gene localization in genetics and breeding of horticultural plants was introduced

    文摘:介紹了rapd技術在園藝植物品種鑒定和分類、系譜分析、構建遺傳圖譜、雜種鑒定、突變體檢測、基因定位等遺傳育種研究領域的應用。
  19. Abstract : as the medicine science develops and improves, some human acquired diseases have been controlled on the whole. but the incidence of genetic diseases and congenital malformation rises gradually and the importance of their treatments appears by degree. to improve population quality, it is necessary to begin with controlling and changing genetic factor. that is, we should understand the classification of the genetic diseases and their incidence mechanism before we use various new technologies to find out and propose the ways of treatment such as antenatal diagnosis and gene project. thus we can achieve our goal of taking precautions against and curing genetic diseases

    文摘:由於醫學科學的發展和進步,一些人類後天的疾病基本上得以控制,而遺傳病和先天畸形的發病率則逐漸提高,並逐漸顯示出其重要性,要想提高人口素質,就要從控制和改變遺傳因素的方面做起,了解遺傳病的種類,發病原理,再利用現代的各種高新技術,找到和提出治療的方法,如產前診斷、遺傳工程等,從而達到預防和治療遺傳病的目的。
  20. 4. the result of soil taxonomy consist fundamentally with that of the genetic classification and the boundaries roughly identify with each other, indicating the taxonomic classification is based on the genesis theory and the two classification system are touched tightly

    土壤系統分類與地理發生分類的分類結果是基本吻合的,分佈界線也大體一致,說明系統分類是以土壤發生學理論為基礎的,兩種分類體系有密切聯系。
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