測樹學 的英文怎麼說
中文拼音 [cèshùxué]
測樹學
英文
dendrometry-
The karyotype of caragana microphylla lam can be espressed as 2n = 16 = 16m ( 4sat ) ; the chromosome number of c. intermedia kuang et h. c. fu is 2n = 18. the karyotype of c. intermedia kuang et h. c. fu can be espressed as 2n = 18 = 16m ( 4sat ) + 2m ; the chromosome number of c. arborescens ( amm. ) lam is 2n = 20. the karyotype of c. arborescens ( amm. ) lam can be espressed as 2n = 20 = 20m ( 4sat ) ; from the conclusion one and two, we can guess : the c. intermedia kuang et h. c. fu ' may be the hybrid or intermediary genve between caragana microphlla lam and c. arborescens ( amm ) lam, also may be have different haploid chromosome number
（ 2 ）可得出三種染色體核型：小葉錦雞兒的染色體數為2n = 16 ，其核型公式為2n = 16 = 16m （ 4sat ） ；中間錦雞兒的染色體數為2n = 18 ，其核型公式為2n = 18 = 16m （ 4sat ） + 2m ；樹錦雞兒的染色體數為2n = 20 ，其核型公式為2n = 20 = 20m （ 4sat ） ，結合形態學所得結論，可推測：中間錦雞兒為小葉錦雞兒和樹錦雞兒的中間類型或雜交種，也可能是具有遞增染色體基數的不同種。Dendrochronology a method of archaeological dating by the annual rings of tree, used when the lifespans of living and fossil trees in an area overlap
樹木年代學：在一定的區域內當生活樹木以及化石樹木的壽命有重疊時，通過樹木的年輪來推測考古學年代的方法。The variable parameter taper equation was built with diameter determination datas of different parts of cryptomeria fortunei plantation sample wood, in combination with the relative tree height curve mode and other assistant equations, volume table of c. fortunei plantation standing was compiled, and provided the scientific basis for the production and application
摘要利用柳杉人工林樣木各部位直徑測定數據，建立可變參數削度方程，配合威布爾分佈函數、相對樹高曲線模型及其他輔助方程，編制了柳杉人工林林分出材率表，為生產應用提供科學依據。Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切Chaoan jimin ceramic factory sticks to the product orientation of high standard, high quality and high taste. we insist on accepting ability and innovating, producing and testing by performing the national standards. adopting scientific and precise management, strengthening our quality sense all the time, we develop the market by well service intention. the developing jimin, with special insight and leading idea, carrys into our brand policy, builds up the enterprise image and exploits the brand with our own characteristic. all of these are directed by the market and based on the science and technology. chaoan jimin ceramic factory, with manful attitude and newness carriage, will go ahead with you for the future
潮安縣集民瓷廠堅持以高標準，高質量，高品位為產品定位，注重廣納賢材，立足創新，嚴格執行國家標準進行生產，檢測，採用科學，嚴謹的細化管理，持之以恆地加強質量意識，以真誠，到位的服務理念拓展市場；發展中的潮安縣集民瓷廠，以獨特的眼光，超前的意識，實施品牌策略，樹企業形象，以市場為導向，以科技為後盾，以人為根本，開拓了具有「集民」特色的品牌之路，潮安集民瓷廠將一如既往，以雄偉的姿勢和嶄新的姿態昂首闊步，與您攜手走向未來！Chaoan jinfengsheng ceramic factory sticks to the product orientation of high standard, high quality and high taste. we insist on accepting ability and innovating, producing and testing by performing the national standards. adopting scientific and precise management, strengthening our quality sense all the time, we develop the market by well service intention. the developing jinfengsheng, with special insight and leading idea, carrys into our brand policy, builds up the enterprise image and exploits the brand with our own characteristic. all of these are directed by the market and based on the science and technology. chaoan jinfengsheng ceramic factory, with manful attitude and newness carriage, will go ahead with you for the future
潮安縣金豐盛陶瓷廠堅持以高標準，高質量，高品位為產品定位，注重廣納賢材，立足創新，嚴格執行國家標準進行生產，檢測，採用科學，嚴謹的細化管理，持之以恆地加強質量意識，以真誠，到位的服務理念拓展市場；發展中的潮安縣金豐盛陶瓷廠，以獨特的眼光，超前的意識，實施品牌策略，樹企業形象，以市場為導向，以科技為後盾，以人為根本，開拓了具有「集民」特色的品牌之路，潮安集民瓷廠將一如既往，以雄偉的姿勢和嶄新的姿態昂首闊步，與您攜手走向未來！2. 5 ul of 10 x reaction buffer, 1. 5 ul 25mm mgcl2, 0. 3 ul lomm dntp, 0. 5 ul taqdna polymerase ( 5 u / ul ), and lul ( = 20ng ) of primer were used in per reaction. each reaction was overlaid with one drop of paraffin oil. the initial denaturation step was used at 94 for 1 min 45 sec ; then denatured at 94 for 30 sec, annealed at 37 1 min, extended at iv b 72 for 2 min and repeated the cycle 45 times, at last, extended at 72 ' c for lomin
等（ 1995 ）利用rapd標記區分美國東部一雜交地帶的蟋蟀的兩個姐妹種， allonemobiusfasciatus和a . socius ，並於1998年使用rapd和異型酶標ic做出了這兩種蟋蟀的基因連鎖圖；國內田英芳、鄭哲民（ 20of ）首次將rapd技術運用於蟋蟀總科的分子系統學研究中，採用2種引物對7種蟋蟀進行了基困組dna多態性研究，並應用upg問a法構建樹狀圖，椎測系統發生關系Mba student team members arion maniatis, lisa ren and pranav kapoor and joined phd students wenjie xia ( medicine ) and thomas wu ( electrical engineering ) in presenting their diagnostic devices that promise faster, cheaper, more accurate identification of a wide range of bio - molecular substances
隊員包括工商管理碩士生馬艾倫、任莉娟、 pranavkapoor 、博士生夏文潔（醫學）和胡樹源（電機工程） 。他們利用一種全新的光感技術，研發出快速、廉宜、準確驗證生物分子物質的感測器。Developing from the typical decision tree learning system ids and using the idea of weight sum, we did exploring research on the application of decision tree technology, using weight entropy to get predicted attribute and division value, in crm of tourism industry
在典型的決策樹學習系統id3之上，利用「加權和」的思想，在對決策樹技術（使用加權熵來獲得預測屬性和分裂值）在旅遊crm中應用上作了探索性研究。Brzozowski t m, maczynska m, zawada m, et al. time - of - flight measurement of the temperature of cold atoms for short trap - probe beam distances [ j ]. j opt b, 2002, 4 : 62
耿濤，閆樹斌，王彥華，等.用短程飛行時間吸收譜對銫磁光阱中冷原子溫度的測量[ j ] .物理學報， 2005 ， 54 : 5104The product can enhance the work efficiency by 2. 5 times and glabrous degree by 1. 5 times in polishing than other grinding materials. kebiao black aluminium abrasive is produced according to jb3629 - 84 and gb 2477 - 83 standard. it is passed and appraised by china abrasive and grinding tool research institute, zhejiang university and the test center of geological bureau, the quality is agreeable to jb gqt - 6006 - 86 and the international advanced standard
主要用於金屬製品光學玻璃竹木製品的拋光和噴砂，又是製造樹脂砂輪切割片砂布的新穎磨料，用本產品拋光比其它磨料工效提高2 . 5倍，光潔度提高1 . 5倍， 「克標」牌黑剛玉磨料經中國磨料磨具磨削研究所測試鑒定，各項指標均達到世界先進水平，特別黑剛玉磨料是磨削拋光不銹鋼製品的最理想產品。Multi - strategy means as follows : utilizing classifying data mining methods based on decision tree to analyze the data in grade database. a grade decision tree is generated to show directly a position of grade according to different computing methods and to support estimate. at the same time, utilizing classification method based on summing - up principles to do such things as grade query analysis and prediction and contrast analysis to realise automatic generation of grade analysis report, test paper ’ s quality assessment report and quality analysis table which plays an active role in improving teaching and test paper ’ s quality
這里多策略主要是指:採用基於決策樹的分類挖掘方法，對學生成績庫中數據進行分析，生成學生成績決策樹，能直觀顯示出某一成績在不同等級計算方式中所處的位置，為教學部門提供評價信息;同時採用基於總結規則的統計分析方法，完成不同情況下的成績查詢、預測及對比分析，實現學生成績分析報告、試卷質量評價報告及質量分析表的自動生成。The effect of intensifier and other conditions on the mechanical properties of composite is studied for the sake of searching the optimal compounding and the optimal technological process. first, a series of composites are manufactured by means of different nonwoven fabric and different resin. the dissimilar methods are adopted including hand molding, vacuum - bag molding and vacuum assistant resin injection
本文在研究非織造布增強樹脂基復合材料的復合工藝、力學性能和破壞機理中，在運用材料學、工藝學、力學和宏觀測試手段的同時，注重採用微觀測試方法，主要採用掃描電子顯微鏡進行測試，觀察了復合材料拉伸斷口的微觀形貌，研究了不同類型的非織造布增強體，不同樹脂和不同工藝條件對宏觀力學性能的影響，從而選擇最佳的增強體和基體的組成、復合條件和工藝，以製成性能最佳的新型材料。The percentage of polymorphic sites, degree of genetic polymorphism and genetic distance were compared and the phylogenetic tree was constructed by neighbor - joining method. the partial mitochondrial 16s rrna gene was amplified by polymerase chain reaction ( pcr ) and the pcr products were directly sequenced after purified. these sequences, together with the homologous sequences of another trichiuridae species lepidopus caudatus obtained from genbank were used to analyze nucleotide difference and to establish a upgma phylogenetic tree by means of biological informatics
汝us價ay1830 ）各12個個體進行rapd分析，對比多態位點比例、遺傳多態度以及遺傳距離，並構建neighbor - join噸系統樹;通過pcr擴增出線粒體165rrna基因，純化后直接測序，利用生物信息學方法進行序列分析和核昔酸變異比較，結合ge紅bar止中大西洋叉尾帶魚（ lepid （護腳caud玫tuseuphrasen1788 ）同源序列構建u甲cm叭系統樹。At last, in order to improve the interfacial bond strength, durafiber pretreated by variable silane coupling agents were mixed into furan polymer mortar, then make its mechanic properties testing
最後，為改善杜拉纖維與呋喃樹脂砂漿的界面粘結性能，採用杜拉纖維用不同的硅烷偶聯劑處理后再加入到呋喃樹脂砂漿中，測試其力學性能。Nuclear energy - measurement of radioactivity in the environment - water - part 3 : measurement of strontium 90 activity in water - radiochemical separation of strontium by extraction with " ethers crown " resin and measurement of beta activity
核能.環境中輻射性的測量.水.第3部分:水中鍶90放射性的測量.通過" ethers crown "樹脂萃取進行鍶的放射化學分離和放射性的測量The reduction request knowledge of background and meet with standard of data mining. decisive tree algorithm of id3 is used to prove the validity of feature reduction and to generate intrusion detection rules
粗糙集約簡具有扎實數學理論基礎，不需要背景知識，符合數據挖掘的要求。用id3決策樹演算法去印證約簡的有效性和檢測的時間效率並生成檢測規則。This is a heuristic strategy. it can reduce the intersection tests need to be computed between bounding volumes by tracing the traverse process in previous time to gain traverse path in current time. the correctness and validity of collision detection can be guaranteed by maintaining the tracing list
這是一個啟發式的策略，通過跟蹤國防科學技術大學研究生院學位論文上一時間采樣點對包圍盒樹的遍歷過程，確定當前時間采樣點的遍歷路徑，從而有效地減少了遍歷過程中包圍盒相交測試的次數，提高了演算法效率，同時通過對跟蹤表的維護，保證了碰撞檢測的正確性和有效性。In order to check if it is the aim gene, we devised pcr with a new pair of primer, sequenced and registered the product with registration number : af449446. moreover we forecast and analysis the primary, secondary, tertiary and quaternary structure of the three protein : osftszi, crftszi and crftsz2 which has already cloned by our team before. after that we construct ftsz molecular evolution tree to site them in
又將生物信息學技術同實驗技術相結合，針對ftsz保守區設計引物擴增出一條衣藻ftsz片段，進行est搜索、比對、拼接，最終克隆出新基因crftsz1 ；連同本試驗室曾經獲得的另一個衣藻crftsz2基因進行蛋白質的一、二、三、四級結構預測、分析及比較尋找進化線索，建立了ftsz蛋白的氨基酸進化樹作進一步的進化定位。The united states department of agriculture is working to save the ash trees. so are agricultural departments and university extensions in a number of states. in some places, farmers are using detection trees. these have an area where bark has been cut away
美國農業部門正在努力工作去拯救灰樹.一些周的農業相關部門和大學附校也在做相同的工作.在有些地方，農民們正在用探測樹.這些樹的有個地方樹皮是被去除的分享友人