群間效應 的英文怎麼說

中文拼音 [qúnjiānxiàoyīng]
群間效應 英文
interpopulation effect
  • : 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
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
  • : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
  • 效應 : [物理學] effect; action; influence
  1. At first, according to the status quo of zhenjiang, this paper analyzes its predominance and bottleneck during the course of its development along yangtze. based on the study, by the combining of scalar computing and qualitative analysis, it selects the leading industries and the potential ones. meanwhile in a basis of the mechanism of the successive rising of the industry, it suggests to cultivate the impellent enterprises to create the localizing effect of the predominant industry, and supports the scientific foundation of the industry rational transition and continuous increasing

    筆者首先根據鎮江市的發展現狀,分析在以沿江開發為主線的發展過程中,產業發展的稟賦優勢和制約瓶頸,在此基礎上,通過定量和定性分析相結合的方法,遴選出鎮江市主導和未來發展的潛導產業,並根據產業連續增長的機理,培養推進型企業,依靠企業集創造優勢產業的本地化,為產業之的順利過渡和連續增長提出科學的依據。
  2. We constructed fences using 2 x 2 x 2 factorial design to examine the effect patterns of food availability, predation and interspecific competition on population dynamics and spatial behavior of reed voles, microtusfortis. we expected to test two hypothesises : ( 1 ) availability of high quality food, predation and interspecific competition have independent and addictive effects on population system dynamics for small mammalia herbivore ; ( 2 ) availabiliry of high quality food could reduce home range and aggressive behavior level between individuals of microtine, predation and interspecific competition have independent effects on spatial behavior of microtine

    以2 2 2析因實驗設計,在野外圍欄條件下,探討食物可利用性、捕食及種競爭對沼澤田鼠( microtusfortis )種動態及空行為的作用,旨在檢驗下述特定假設: ( 1 )高質量的食物可利用性、捕食及種競爭對植食性小哺乳動物種系統動態具有獨立的和累加的; ( 2 )高質量的食物可利用性可降低田鼠個體的攻擊行為水平,並導致其巢區減小;捕食與種競爭對田鼠的空行為亦有獨立的作用。
  3. This note studies two - species metapopulations dynamics com mon model considering of the affect of interspecific interaction to colonization and extinction rate and rescue effect, demostrates the conditions of two specie s capable of coexistence in the competitor, predator - prey or mutualist system

    在考慮種相互作用對定居率和絕滅率的影響以及逃避的基礎上建立了兩物種相互作用的異質種動態的一般模型,通過模型分析說明了競爭、捕食和互惠共生系統中兩物種能夠共存的條件
  4. Heredity modes of 6 traits were studied by analysis of population genetics, by the method of family combination analysis, by the methods of proband ' s sib analysis, segregation analysis, the threshold model of polygenes, and analysis of typical family trees, according to the data of the 72 families. the relative importance between genetic and environmental effect on each character was evaluated by comparing the coherence of twins. gene frequencies of 5 genetic characters, calculated from han group in huhhot, were compared with other groups by u - test so as to study the population or nationality difference in heredity

    採用體遺傳學分析、家系組合分析法、先證者同胞法、分離分析法及多基因閾值模式分析方法對所得家系資料進行了統計學分析,結合家繫系譜分析探討了上述6項特徵的遺傳方式;通過雙生子一致率的比較,對上述特徵的遺傳與環境的相對重要性進行了評價;計算了呼和浩特市漢族體5對遺傳性狀的基因頻率,採用u檢驗方法與相關文獻報道的其他體進行了比較,探討了不同種族或民族的遺傳差異性。
  5. Any of the reciprocal actions or effects, such as symbiosis, that can occur in a community

    (種)相互作用出現在落中的相互作用和,例如共生現象
  6. In this paper two - generation reproduction toxicity of fenvalerate, a - cypermethrin, chlorpyrifos, and triazophos was tested in a 21d period with water flea, daphnia magna, . the toxicity indicator included longevity, body length, days to first brood, days to first pregnancy, number of youth per female, intrinsic rate of natural increase ( r ), and number of broods per female. accordingly, the dose - response relations and relations between the chronic responses and enzyme levels were investigated

    為了確定水蚤體內生化指標與慢性毒害的關系,特別是在低濃度暴露狀態下生化指標改變的生物學意義,以便能更準確預測早期農藥對水蚤種的潛在危害,本文以浙江省常用殺蟲劑氰戊菊酯、高氯氰菊酯、三唑磷和毒死蜱進行了大型蚤( d . magna )的急性和慢性毒性試驗(包括子代水蚤的恢復試驗) 。
  7. For better understanding the structure of insect community aloft and how it interacted with the insect community near the ground, especially the effects of the wind - borne migration, observations were conducted with a searchlight trap on an island ( 38 23. 200 " n, 120 54. 500 " e ) in changdao, at the center of baohai channel, in 2002, and with a digital entomological radar and a twin light - trap ( simultaneously operated searchlight trap and ground light - trap ) at a site in langfang ( 39 30 ' 42 " n, 116 36 ' 07 " e, 28 m asl ), in the vicinity of beijing, in 2001 and 2002

    為了更好地理解空中昆蟲落的結構及其如何與近地昆蟲落相互作用的,尤其是風載遷飛的, 2002年在渤海海峽中的長島縣一小島( 3823 . 200 』 n , 12054 . 500 』 e )上使用探照燈誘蟲器進行了觀測; 2001和2002年我們使用數字昆蟲雷達和姊妹燈(同時使用的探照燈誘蟲器和地面燈誘蟲器)在北京附近的廊坊( 39 30 42 n , 116 36 07 e , 28masl )進行了觀測。
  8. The metabolism activity and distribution pattern of am fungi were studied in the field. the results showed that the tuber fresh weight was greatly increased with intraradical alkaline phosphatase ( alp ) activity and extraradical hyphal density greatly improved

    研究中還觀察到,起源相同的2種am真菌對甘薯的不同,表明同一am真菌落中的不同成員存在生態位的分異。
  9. The discussion of cultural construction mode in baibuting community is developed as following : the first part presents author ' s motivation in carrying out the research, defining some concepts and introducing a few common modes of cultural construction in urban communities. the second part is a detailed description of fundamental ideas and content, advocating the notion of " human oriented, moral centered, law abiding, trying to creating a modern community with the capacity of sustainable development ", introducing its unique homestead culture. the third part sets forth the innovation of community culture construction modes in baibuting community : in order to create a, human - oriented community culture, establish a peaceful and content environment for the socialism ideology, the baibuting community made innovation on community management system ; by the analysis of the occupational statistics and object groups, the author found out that most of residents come from the middle class ; then, the author gives the definition of middle class and its general features in a sociological perspective ; finally, the thesis analyses the characteristics of the community residents " pursuit of culture and the harmonious development of community culture in aspects like value system, consumption habits, cultural needs

    本文通過理論學習,對百步亭花園社區文化建設的模式進行了探索研究,在現狀調查過程中,筆者發現百步亭的社區文化建設之所以成功,除了開發商和物業管理中心的組織建設外,還有小區居民的積極參與合作,三者密不可分,而這又與居民所屬的階層文化訴求密切相關,於是,本文就百步亭社區文化建設模式作了論述,思路如下:文章的第一部分:提出本文研究的緣起,並對一些與本文有關的概念作了界定,還介紹了幾種城市社區文化建設的一般模式;文章的第二部分:介紹百步亭花園社區文化建設模式的基本思想和內容,提出了「以人為本、以德為魂、以法為行,努力創造可持續發展的現代文明社區」的口號,並介紹了其獨具特色的家園文化;文章的第三部分:對百步亭社區文化建設模式的創新作了論述:百步亭社區為了營造以人為本的社區文化,構建社區安居樂業工程,為社會主義思想道德體系提供良好的社會文化環境,在社區管理體制上作了創新;還通過對百步亭社區居民的職業統計,來源體,分析出其從屬的社會階層主要是社會的中階層;再次,從社會學角度,定義了中階層及一般特徵;最後從價值觀、認同感,消費觀念、文化需求等方面,分析了其文化訴求的特徵和與社區文化的協調發展;文章的第四部分:從整合功能和導向功能兩方面總結了百步亭社區文化建設的社會;並對百步亭社區文化建設模式的不足提出了意見和建議。
  10. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題,尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的,但另外一些則有著嚴重的後果,會給入侵地的生物以至於整個生物落造成影響.本文總結了分佈區擴張的常見模式,概述了它們對遺傳多樣性和種結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑,來揭示伴隨擴張選擇和漂變在形成種遺傳樣式中的作用.本文對日益增多的體遺傳學方法進行了總結,這些技術可以用來在不同的時尺度上推斷種規模所發生的巨大變化(瓶頸及種擴張) .最後,我們以歐洲櫟癭蜂(膜翅目,癭蜂科,癭蜂族)一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時尺度上,多態的等位酶位點上等位基因頻率的數據表明: 1 )遺傳多樣性沿入侵路線呈不斷下降的趨勢,支持了冰河期避難所作為遺傳多樣性中心的作用; 2 )入侵地區的種與該物種原產地的種相比,遺傳上的分化更為強烈.這種種結構在空上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  11. Tenants of science park should engage in technology - intensive business and their operations in the science park should be carried out through the development, enhancement or application of innovation and technology. as far as the aforementioned 37 companies approved for admission into the science park are concerned, science park is catalyzing the building up of clusters with synergistic effect and the emergence of technology - based enterprises, particularly in electronics, information technology and telecommunications sectors

    入園租戶須從事科技密集行業,而其于科學園內的業務必須透過發展,增進或用創新方法和科技。就上述提及已獲批準入園的三十七公司而言,整體上科學園正催生同業匯聚和協同,並有地促進科技行業形成組,其中尤以電子、資訊科技和電訊界別為然。
  12. When the frequency approaches zero, the factor approaches zero correspondingly ; 2 ) the amplitude of interaction factors changes with the incident angle of rayleigh waves and reaches maximum when is zero. moreover, with the increase of, the wave period shortens apparently ; ( 3 ) the amplitude of interaction factors decreases as the pile spacing increases and approaches to zero when the pile spacing is 15 ; 4 ) the amplitudes of interaction factors increase clearly with the increasing stiffness ratio of pile to soil ; 5 ) the lat eral seismic response of fixed - head pile groups is much smaller than that of free - head pile groups. moreover, the pile - group effects induced by rayleigh waves can be neglected ; 6 ) the lateral seismic response of piles at different location differs from each other

    得到了以下結論: 1 )樁的相互作用因子隨頻率呈周期性變化,在振動頻率比較低的情況下,樁的橫向相互作用因子也較低,當頻率趨近於零時,相互作用因子也趨近於零; 2 )樁的相互作用因子的幅值隨瑞利波入射角度的變化而變化,在= 0情況下幅值最大,且隨入射角度的增加,波動的周期明顯縮短; 3 )樁的相互作用因子的幅值隨著樁與樁距的增加而減小,至s d = 15時,樁的相互作用因子基本趨近於0 ; 4 )在頻率比較低時,相互作用因子幅值隨樁土相對剛度比的增加而顯著增加; 5 )樁頂固接可以有地降低樁的橫向地震響幅值,由瑞利波產生的可以忽略不計; 6 )樁中不同樁位的樁的橫向地震響是不同的,每根樁所在的樁位對其橫向地震響有很大的影響;刀樁數的增加並不能減小樁的橫向動力響
  13. Biodiversity exists among am fungi and is influenced by numerous factors including soil properties and plant species. if am fungi are to be used in sustainable agricultural systems it is necessary to study native am fungi in the target areas and then select efficient isolates that can be applied as inocula in the field to improve crop growth. the objectives of this study were to investigate the germplasm of am fungi, to understand the distribution pattern of am fungi in different ecological conditions such as area, soil factor and host plant, to select isolates effective in nutrient acquisition by the host plant sweet potato, to test their effectiveness under field conditions, and to monitor amf after their introduction into the field

    本研究通過調查我國北方部分地區的am真菌資源,研究了am真菌的種組成及其在空、土壤利用方式和宿主植物類型等不同環境條件和空尺度上的分佈規律;在此基礎上,根據它們對甘薯的生長、吸磷篩選出高菌株,在大田條件下研究了am真菌菌絲的分佈特性、代謝活性及其對甘薯產量和品質的影響;並通過分子探針跟蹤調查了引入am真菌在共生體中的發育和表達,以期為菌根真菌的生產用提供技術支持。
  14. Simultaneously, we find that noise and excessive response are the most primary factors. we construct the herding model of the individual investors under the irrational condition

    在此基礎上,論文採用dematel方法分析了所有非理性因素之的關系,研究發現噪聲和過度反是影響個體投資者羊的最主要因素。
  15. These are main problems of eutrophication. at first we select algae which grow under different level of nutrition ( or different development phase in the process of eutrophication ), domesticate, selecte seed, and culture algae at the lab, and then we obtain dependence of each algae on nutrition and understand information of eco - breadth of nutrition of supplied alga through pure culture under different concentration of nutrition. we find out resource utilization, competition between interspecies and confirm the quantity - effec t relationship between succession of species and nutrition through mixed culture

    本文首先選取在不同營養環境下(或富營養化過程的不同發展階段)生長的藻類物種,在實驗室內進行馴化、選種與純化培養;然後通過不同營養水平的純藻培養實驗,獲取不同藻種生長過程對營養物質的依賴行為,從而可以了解每一供試藻種的營養物生態幅信息;再通過對培養濃度的混合培養試驗,以期揭示生物種的資源利用與競爭行為,並可進一步確定生物種的演替與環境營養物之的量關系。
  16. Satellite laser altimeter return waveform is sensitive to the vertical canopy structure and the change of underlying ground elevation. it is optimal for mapping forest structure. the return waveform and the processing method are described. the relationship between laser waveform and canopy structure parameters is explored ignoring the clumping effects. the clumping caused that structure parameters are different from the actual value. to solve this question, a model by 3 - d canopy structure parameters is needed

    星載激光測高儀的回波信號能夠靈敏反映地面植被組成和地表高度的變化,因此能夠用於探測森林地貌;首先對星載激光測高儀的森林回波信號及其處理方法進行了介紹,探討了在不考慮植被聚集情況下,植被組成與回波信號之的關系;由於植被的聚集,例如樹葉集成樹冠,會導致植被組成參數與真實值之存在差異,這需要建立關於三維的空分佈模型加以解決。
  17. Based on the formula which is used to compute the lateral resistance of single pile deduced by wang qitong, a formula is setup whose precondition is that the pile and the lateral soil directly around the pile deform in - phase. on the basis of that the contact stress of the foundation is equal, a formula that can be used to conform the stress - ratio of the composite ground is set up, on the same time, the principles of the deformation harmony of the soil and the piles in the composite ground are also discussed. combining with results of this test, a formula which can calculate the bearing capacity that considering the effect of group piles of the composite ground is also deduced

    視攪拌樁樁體為均質彈性介質,推導了復合地基中單樁有樁長的理論計算公式;根據王啟銅柔性樁樁側摩阻力計算公式,以樁側土與樁體協調位移為前提推導了柔性樁樁側摩阻力的計算公式;以基底接觸力均勻分佈,樁體、樁土均質為前提,討論了樁,土協同工作原理,從而得出復合地基樁、土荷載變形特性,以及樁、土力比計算公式;結合本次試驗,通過計算加載時樁體與土體的荷載分擔情況以及在極限狀態下樁土承載力發揮值,提出考慮的攪拌樁復合地基承載力計算公式。
  18. With the method of the lie group transformation, the symmetry of the equation governing one dimensional finite strain consolidation is discussed and, from the point of the symmetry, the feasibility to obtain the analytical solution of these nonlinear partial differential equations is discussed. where - after exact or approximate analytical solutions focused on different consolidation problems are obtained, these including : under some assumptions of relations of the void ratio with coefficient of permeability and effective stress, the method of lie group transformation is applied to solve the non - linear partial differential equation of large strain consolidation of homogenous saturated clay soil in semi - infinite domain with the consideration of the material and geometrical nonlinearity during consolidation procession. the implicit exact solution without considering the effect of self - weight of soil is obtained

    運用lie變換方法討論了一維大變非線性固結方程的對稱性,以及在該對稱性的意義下求解這類非線性偏微分方程解析解答的可能性,並就大變非線性固結問題的多種情況求得了其完整的或者近似的解析解答,具體包括:基於有力與孔隙比以及滲透系數與孔隙比之的關系的一些假定,採用李變換求解考慮材料非線性和幾何非線性的半無限均質土體大變形固結非線性偏微分方程,得到了一個不考慮自重固結的完全解析解。
  19. ( 4 ) the influences of cavern shape, cavern scale and geostress on excavation effects for single cavern and the influences of distance between different caverns, rock mass quality and construction order etc on the excavation effects of caverns were studied. the features of multi - cavern effect of laxiwa underground project were studied

    分析了洞室形狀、洞室規模、地力因素對單個洞室開挖的影響:分析了洞室距、巖體質量、開挖順序等因素對復式洞室開挖的影響;討論了拉西瓦地下洞室的具體規律。
  20. Based on the theory of network organizational structure proposed by swedish scholars hakansson and snehota, using the analytical method of economics and management, this thesis tries to discuss the three key factors that influence the enterprise clusters " competitiveness from the perspectives of network relationships in enterprise cluster clusters " organizational learning and clusters " life circle, then demonstrate the mechanism among the three key factors. finally, we put forward policy to help cultivate and strength clusters " competitiveness. the preface explains the research purpose, practical significance and theory value as well as the research methods

    本文基於瑞典學者哈堪森( hakansson )和斯涅何塔( snehota )提出的網路組織結構理論,綜合運用經濟學和管理學分析方法,從內企業網路關系(主體與主體的關系) 、集的組織學習(主體對資源的活動) 、集的生命周期(主體活動的時)三個層面研究影響企業集競爭力的動態演化要素,揭示三個影響要素與集競爭力的關聯機理以及要素之的相互作用機制,並提出相的制度安排與政策建議,以期對集競爭力的培育和提升提供理論參考。
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