空心方塊 的英文怎麼說
中文拼音 [kōngxīnfāngkuāi]
空心方塊
英文
hollow square-
In this experiment, radio - immunoassay and hybridization in situ were applied to observe the insulinotropic activities of glp - 1 ( 7 - 36 ) nh2 and reveal the mechanisms underlying this process. methods : rat pancreases were removed from 3 - 5 day - old sprague - dawley rats and dissected into 0. 5mm3 segments and islets were isolated by the collagenase digestion method of wangling et al. thoroughly washed islets and suspended in modified rpmi - 1640 medium supplemented with 10 % fetal bovine serum, and added to 50ml cell culture flasks
方法：胰島的分離參照王玲等的方法，每次實驗取新生3 - 5天sd大鼠，無菌條件下剖腹取出胰腺，剪切為0 . 5mm ~ 3的組織塊， v型膠原酶消化30min后，離心洗滌，懸浮於完全培養基，接種入50ml培養瓶，於5 co _ 2 、 95空氣條件下培養20h ，轉板純化，接種於96孔培養板培養24h ，按實驗要求進行實驗。Space - time codes can be divided into tree mainly parts : bell layered space - time architecture ( blast ), space - time trellis codes ( sttc ) and space - time block codes ( stbc ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )
Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。Test methods for the small concrete hollow block
混凝土小型空心砌塊試驗方法Test methods for the small concrete hollow
混凝土小型空心砌塊試驗方法The memorial honoring world trade center victims will include a forest of oak trees with a clearing for sept. 11 gatherings and a memorial hall between the twin reflecting pools that will mark the footprints of the lost towers, officials announced thursday
美國官方周四（ 12月16日）宣布，為緬懷紐約世貿中心撞機事件中的遇難者而修建的世貿雙塔遺址紀念地將包括一片橡樹林和一個紀念館，橡樹林中將留有一塊空地，作為紀念911襲擊事件的公共集會區；紀念館將建在兩汪清池之間，這兩片清池標志著已不復存在的雙塔。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群落造成影響.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群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群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .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年的時間尺度上，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 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間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This thesis discusses the research and development on some critical parts in airspace management and evaluation system, including mainly the following contents : design the architecture of airspace management and evaluation system. design and realize the event log middleware and event log module based on middleware technology. design and realize the core and nodus of airspace management and evaluation system - airspace data access based on object oriented technology and nested table technology
本文對空域管理與評估系統的一些關鍵問題進行了研究和開發，主要包括以下幾個方面的內容：設計空域管理與評估系統的體系結構提出並實現了基於中間件技術的日誌中間件及日誌維護模塊採用面向對象技術和嵌套表技術設計和實現了空域管理與評估系統中的核心和難點? ?空域數據訪問The blockworks made of air blocks have many resemblances with that of walls made of solid clay bricks but they have their particularity
混凝土小型空心砌塊墻體開裂的原因是多方面的，也是很復雜的。The second section of this thesis is chiefly on practical process. through combining the project of the main plot in tsinghua university scien - tech garden, this part illustrates in detail the contents and methods of architectural programming of space composing in high - rise office building
論文第二部分是實踐篇，結合清華科技園中心地塊空間組成建築策劃的項目，詳細地闡述了高層寫字樓空間組成建築策劃的各項內容和方法。Based on big central hole design method, a space manipulator modular joint is developed, which includes many sensors, such as position sensor, torque sensor and temperature sensor
摘要採用大中心孔設計方法成功地研製了高集成度空間機械臂模塊化關節。Heat supply heating and hot water supply is provided with : hybrid solar system on the base of solar collectors water - air, area - 12 square meter in the southern wall of a greenhouse ; passive solar system combined with the northern wall made of hollow blocks 0, 2 m wide and filled in with hae of porous material
該溫室通過以下方式提供熱水和供暖：南墻使用面積為12平方米的綜合太陽能系統，該系統使用太陽能收集器制給空氣和水體加熱北墻使用被動太陽能系統，即墻體由每塊0 . 2米寬的空心磚砌成，磚內填充多孔蓄熱材料。The paper firstly analyzes the characteristics and demands of an electronic aeroengine controller, as a result, the design scheme of a primary module, which is based on dsp and can, is proposed for an electronic aeroengine controller. then, according to this scheme, a primary module is implemented by hardware design and software development. finally, a wpa aeroengine mathematical model is used to construct a matter - in - loop simulation system, with which a series of control system experiments are accomplished
論文首先分析了航空發動機電子控制器的特點，提出基於dsp帶can總線介面的航空發動機電子控制器核心模塊的設計方案；然後根據此方案，通過硬體電路的設計和軟體開發，實現了該核心模塊；最後利用渦噴a發動機的數學模型構成一個實物在迴路模擬試驗系統，並完成了模擬試驗。In mechanics performance, we test that composite blocks can be used as bearing ones through doing experiments, analyzing the experiment data of composite blocks and comparing these data to small hollow betonblocks "
在力學性能方面，通過將復合砌塊與混凝土小型空心砌塊進行對比試驗，驗證了復合砌塊用於承重型砌體的可行性。Three characteristic features, such as average velocity of sound, deviation coefficient of sound velocity, and deviation coefficient of amplitude are extracted from four kinds of testing data which are sound velocity, amplitude, frequency and waveform in this paper. fuzzy analysis and artificial neural network are combined to form an intelligent system with similar functions to human brain to classify grc, aerated concrete, hollow brick, solid brick and concrete block. the accuracy of this system is up to 95 % in field tests
由超聲脈沖法獲得4種檢測信息聲速、波幅、頻率和波形，從中提取3個特徵量：平均聲速、聲速的離差系數和波幅的離差系數，利用模糊分析方法和人工神經網路相結合對grc 、加氣混凝土、空心磚、實心磚、砌塊5種墻體材料進行種類識別，形成一個智能化的、具有類似人腦功能的系統.經現場實測證明，判別的準確率達95 %以上。After summarizing research findings at home and abroad, it is definitely raised that the core of hmb design is the problem of automatic optimization of outer spatial layout scheme under propped by automatic inner connection algorithm of channels
通過對國內外同類研究現狀和成果進行總結，本文明確提出，液壓集成塊設計的核心問題是其外部布局和內部布孔集成方案的自動優化設計，是在孔道自動連通演算法支撐下的三維空間中液壓元件布局方案的自動尋優。分享友人