段學復 的英文怎麼說
中文拼音 [duànxuéfù]
段學復
英文
duan xuefu-
Anatomizing and modifying troubles in mathematics review
試談數學階段復習課中存在問題的剖析與改進Influence of compound astragalus and stanozolol on bone histomorphometry parameters in os integumentale of middle tibia and cancellated bone of upper tibia of ovariectomized rats with osteoporosis
黃芪和司坦唑醇復方制劑干預去卵巢骨質疏鬆癥大鼠脛骨中段皮質骨及上段松質骨形態計量學參數的變化The structure evolution and reaction mechanism of silicon - iron composite powders treated at the temperature ranging from 700 c to 1200 c respectively were carefully investigated through xrd, sem, epma, dsc. it was found that the chemical formula, fe + si - fe ( si ) + fe3si ( si ), controls the reaction process, and the reaction mechanism of powder homogenization was clarified
通過利用xrd ， sem ， epma ， dsc等多種測試手段，詳細研究了鐵硅復合粉末帶材在700 1200的熱處理溫度條件下的反應狀況及結構變化，明確了反應過程中的化學方程式： fe + si fe （ si ） + fe _ 3si （ si ） ，並解釋了各個熱處理溫度范圍內，鐵硅粉末均一化的反應機理。Secondly, the artificial neural networks and mixed evolutionary computation are employed into the mathematical simulation of complex geological structure, and with gis and visualization technique, the method of geological digital 3 - d modeling and visualization is presented. so, not only the functions of making geological section and querying spatial information could be achieved, but also the spatial distribution of geological structures and their complex relationship could be described visually. thereby an interactive and convenient way for engineering geological design could be actualized
（ 2 ）提出了復雜地質構造數學模擬的神經網路方法與混合進化方法，並利用gis技術和可視化技術，深入研究了數字地質三維建模及其可視化方法，實現了地質三維任意剖切、信息空間查詢與管理等功能，從而為直觀描述地質構造的空間展布及其相互間的復雜空間關系，以及快捷、交互地進行工程地質設計提供了新的途徑與手段。In this paper, the split hopkinson pressure bar ( shpb ) was used to study the compression mechanical behavior of al / sicp mmcs under the high strain rate
本文用自行研製的分段式霍布鑫森壓桿（ splithopkinsonpressurebar ）研究al / sic _ p復合材料在高應變率下壓縮的力學行為。According to medical research, when vitamin b12 enters the body, it forms a compound with an intrinsic factor secreted by the parietal cells large cells of the peptic glands on the gastric mucosa mucous membrane of the stomach, before being absorbed by receptors in the ileum lower part of the small intestine in the presence of calcium ions
在維他命b12的吸收方面，根據醫學報導，維他命b12在吃進人體后，首先會在胃部，和胃壁細胞parietal cells分泌的一種蛋白質內因子intrinsic factor結合，形成復合物后，再由小腸段中的回腸ileum吸收。在回腸之接受體receptors吸收時，需要有鈣離子之存在。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義Harold bloom, a monumental and legendary figure of literary criticism at yale university, a name that cannot be avoided in poetry criticism, is one of the strongest and definitely the most prolific critics of his generation or of several past generations. professor xu jing, correspondent of foreign literature studies, interviewed professor bloom in may 2006. this interview focuses on his theory of poetry that was explosively brought forth in the 1970s by his famous tetralogy : the anxiety of influence, a map of misreading, kabbalah and criticism, and poetry and repression. bloom regards his theory of " the anxiety of influence " as his most important contribution to literary criticism, and uses " dancing " to explain his famous yet baffling six rations of " misprision. " always preoccupied with his own theory, bloom here again traces the precursors of emily dickinson and makes a brief comparison between walt whitman and wallace stevens. looking back to his past, bloom gives a summation of his life ' s trajectory as a critic : a revivalist of romantic poetry, a theoretician of poetry, and a critic for the general public. bloom began his career as a critic of british romantic literature in the afterglow of the new criticism. in the 1970s, bloom brought forth his explosive " theory of poetry " in the tetralogy publised in very quick succession in the 1970s. since the 1980s, bloom has become less technical and hopes to reach a wider readership. his literary criticism and what he calls his " criticism of religion " for the general public have made harold bloom a household name in america as well as in the world. at present, the 76 - year - old harold bloom is intensely engaged in the writing of what he hopes to be his masterpiece, the anatomy of influence, which is to be published in 2008 by princeton university press
哈羅德?布魯姆教授是耶魯大學具有里程碑意義和傳奇色彩的文學批評家，一個詩歌批評界的一個不可迴避的名字，是他那一代人或幾代人中最猛烈的、也無疑是最多產的批評家之一.本刊特約記者徐靜於2006年5月對布魯姆教授進行了采訪.本次訪談的重點是布魯姆在20世紀70年代以《影響的焦慮》 、 《誤讀的地圖》 、 《卡巴拉與批評》 、 《詩歌與壓抑》四部曲的形式相繼提出的、具有爆炸性的"詩歌理論" .布魯姆認為"影響的焦慮"是他對文學批評最重要的貢獻，並用舞蹈這一形象的比喻來解釋了他那著名的卻常常令人困惑的關于"誤讀"的"六個定量" .在訪談中，布魯姆還追溯了幾位對愛米莉?狄金森頗有影響的前輩詩人，並簡單比較了惠特曼和史蒂文斯.布魯姆將他的批評生涯概括為三個階段:浪漫主義詩歌的復興者，詩歌理論家以及面向大眾的批評者.在新批評的余輝中，布魯姆以對英國浪漫主義詩歌的批評開始了其批評生涯. 20世紀70年代布魯姆提出了他那爆炸性的、以四部曲的形式相繼問世的"詩歌理論" .進入80年代后，布魯姆的批評不再艱深難懂，他希望能擁有更廣大的讀者群.他為普通大眾所寫的文學批評及"宗教批評" （布魯姆語）使得哈羅德?布魯姆成為了美國以及全世界的一個家喻戶曉的名字.目前， 76歲的布魯姆正全力寫作《影響的解剖》一書，將於2008年由普林斯頓大學出版社出版This study : ( 1 ) provides the most detailed osteological and integumentary descriptions on liaoning deinonychosaurs ; ( 2 ) proposes an evolutionary model for feather evolution ; ( 3 ) analyzes the interrelationships of the coelurosauria ; ( 4 ) evaluates the effects of combining information from different parts of the body in reconstructing coelurosaurian evolution, and ( 5 ) discusses the evolutionary trend within the coelurosauria and particularly those features related to the origin of avian flight
本研究： （ 1 ）提供了有關遼寧恐爪龍類最詳細的骨骼學信息； （ 2 ）提出了羽毛演化的一個新模型； （ 3 ）綜合地分析了虛骨龍類的系統關系； （ 4 ）分析身體不同部位的信息對復原系統發育的影響及虛骨龍類各個演化階段身體不同部位的相對演化程度； （ 5 ）討論了虛骨龍類的演化趨向，尤其是和飛行起源相關特徵的變化。1. because the taxonomic division is rather complex and has been much disputed and revised, in this part, we will review the classification and phylogeny of families, subfamilies and tribes of anseriformes based on morphology, ethology, osteology, mitochondrial and nuclear dna restriction fragment length polymorphism, single - copy nuclear dna hybridization and the sequences of mitochondrial gene analysis referring to the different definition, classification and phylogenetic relationships of the families, subfamilies and tribes of anseriformes. the controversial questions and deficiency in the systematic studies of anseriformes were pointed out
具體包括以下幾個部分： 1 、針對雁形目鳥類異常復雜的分類狀況及分類上存在的爭議，根據雁形目鳥類的形態學、行為學、骨骼學、角蛋白、線粒體與核dna酶切片段長度多態、單拷貝核dna - dna雜交及線粒體基因dna序列分析等方面的研究，對雁形目鳥類分類中科、亞科和族的劃分及其相互間的系統發生關系進行綜述，分析系統學研究中存在的不足，提出了雁形目鳥類分類中急需解決的問題。But at the present, because of chronic geomorphy disintegration, altitude and ascent of bank slope have been built down and palliated. especial rock mass mechanics condition has not been existent, so all kinds of rock mass fracturing deformation was stopped to developing and steady
但目前因長期的地貌剝蝕作用，壩肩岸坡的高度及坡度均已大為降低減緩，特殊的巖體力學條件已不復存在，巖體內部的各類張裂變形亦停止發展，處于破裂發展穩定階段。A new fractal - based infrared image feature extraction method is presented and the detailed theoretic analysis and implement procedure of this algorithm is submitted and tested in some experiments. with the limitation of the line detection based on traditional hough transform that the information of the length and the end points of the line is unavailable, a new algorithm which makes use of the accessional strategy based on precognition information is put forward to meet the demand for more information of the line, simulation results show this method is effective. finally, the whole process of airport target recognition is presented and the result images are also given
使用分形方法提取目標的特徵，在知識指導下，提出了一種基於目標特徵模型的降維的形態學分形維數計算方法，對傳統分形方法進行了改進，從理論上推證了演算法的合理性，並對演算法進行了模擬分析；針對傳統hough變換無法獲得線段端點和長度信息的局限性，提出了一種基於目標特徵先驗知識的hough變換融合策略，通過引入目標先驗知識，可以有效地獲得直線信息；對信息多而復雜的機場目標採用基於知識的目標識別方法，使用置信度模摘要型實現不確定推理，對目標進行識別判斷，將知識貫穿于整個識別過程中，對目標進行了有效地識別。The article is directed by the modern structural geology, seismic stratigraphy and petroleum geology. in the study of works, geology, seismic and logging data are used. with the computer ' s ( workstation ) help, adopted many methods which are the technology of balanced section, calculation of the structural movement rate, the renewal of the erosion thickness, renewal of the ancient thickness, the protraction of the cover history curve and the " pagoda " figure, and based on the previous research achievement, this article studies the characteristic of rupture and fold, the degree of structural movement and the fashion of structural movement and brings forward that ludong area has experienced three big phases of structural evolvement
以現代構造地質學、地震地層學和石油地質學為指導，全面利用各種地質、物探、測井資料，藉助先進的計算機（工作站） ，採用多種方法（平衡剖面技術、構造活動速率計算、剝蝕厚度恢復、古厚度恢復、埋藏史曲線製作、寶塔圖製作等） ，並結合前人的研究成果，研究了陸東地區斷裂和褶皺的特徵、構造運動的期次以及構造運動的方式，提出了陸東地區經歷了三個大的構造演化階段。With a further progress and development of society and science & technology, we have come into a more complicated society with a recognizant stage characterized by " nature - society - thought "
隨著社會和科學技術更加進步、發展，人類進入了「自然? ?社會? ?思維」的認知階段的更復雜的社會。Thirty - two tears later, with the hindsight of historical perspective and a life of practicing social research on cities, the answer is : yes, there was ; no, there is currently not ; but perhaps, with luck, it will resurge in the twenty - first century, with new concepts, new methods, and new themes, because it is more necessary than ever to make sense of our lives
三十二年復，現在回過頭來看這段親身對于城市的社會研究的參與經驗，答案是：有，不過是以前有；沒有，現在沒有；但是，如果幸運點，會在廿一世紀復活，發展一些新的概念，新的研究方法，以及新的主題，因為都市社會學對於我們對生活的理解比過去更顯鈴要。3. a space bond slip relation of reinforcements in either end of a member is proposed, based on one - dimensional bond slip model of reinforcements proposed by teng zhiniirmg from tsinghua university, the first - time loaded ascending stage ? curve of which model is modified as the line which parameters are not changed so as to simply the computation. the bond, slip is regarded as the boundary nonlinearity of a member
3 、採用清華大學滕智明建議的一維鋼筋粘結滑移恢復力模型，但從簡化計算的角度出發，將首次加載的上升段曲線改為直線，並假定構件端部的諸多縱向鋼筋的滑移服從平截面假定，考慮由節點錨固區粘結滑移引起的構件端截面軸向和兩轉角附加變形。As the inevitable choice of enterprises to adapt to the knowledge - based economy development, knowledge management is a process of creating value for enterprises confronting the increasingly complicate changes of environment by taking advantage of collective intelligence to reinforce the ability of learning, contingency and innovation, which requires enterprises to apply various means, including organizing, culture, process, technique, strategy, and to establish the knowledge - respecting and talents - respecting culture environment gradually which will promote knowledge accumulation, share, diversion, and improve the inner and outer application of knowledge network
知識管理作為企業適應知識經濟發展要求的必然選擇，其實質是企業在面對日益復雜的環境變化，綜合運用組織，文化、流程、技術、戰略等手段，通過有計劃，有目的的構建有利於知識的積累、共享、轉換和運用的內外知識網路以及尊重知識，尊重人才的文化氛圍，運用集體智慧提高企業的學習能力、應變能力和創新能力，並達到為企業創造價值的一種管理過程。For the following two weeks, i continued to receive similar comments from many people who had seen the interview friends, co - workers, students and even a stranger on the street, as it was apparently being aired several times a day at different hours, along with other interviews
在接下來的兩周，我的朋友同事，以及學校的學生，甚至街上的陌生人，也都紛紛向我表示他們看了那段訪談之後的想法，他們的想法都差不多，顯然這段訪談和其他人的受訪內容，每天在幾個不同的時段重復播放著。Researchers who worked at the institute of mathematics and were later elected academicians are su buqing, chen jiangong, duan xuefu, zhuang fenggan, hu shihua, dai yuanben, hu haichang, hu hesheng, song jian, xia peisu and tang zhisong
此外，曾經在數學所工作過，后來當選為院士的有：蘇步青、陳建功、段學復、莊逢甘、胡世華、戴元本、胡海昌、胡和生、宋健、夏培肅、唐稚松。In this article, molybdenum wire multi - doped with la2o3 and k, al, si, molybdenum wire doped with k, al, si and molybdenum wire doped with la2o3 or y2o3 are analyzed by dsc, hot - draw, sem, optical microscope, micro - hardness, x - ray and tem. it is found that multi - doped molybdenum wire is better at elevating the recrystallization temperature and improving the micro - structure and mechanic properties after recrystallization than molybdenum wire doped with k, al, si
本文通過差熱分析、熱模擬、掃描電鏡、金相顯微鏡、顯微硬度、 x射線衍射和透射電鏡等實驗手段對復合摻雜k 、 al 、 si和稀土氧化物的鉬絲、單摻雜k 、 al 、 si的鉬絲以及單摻雜稀土氧化物的鉬絲的再結晶溫度、高溫下的綜合力學性能和組織形貌進行了綜合對比分析。分享友人