summing point 中文意思是什麼
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Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影（ dsa ）成像系統的組成結構和數據流向進行了深入研究和分析，並對系統中的數據流向進行了完整的歸納和總結，給出了x線數字成像系統中的高速大容量數據通道的設計方案；在對sdram的控制方式做了深入探討后，給出了實現大容量多條sdram共同工作的解決方案，在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲；通過對pci總線介面的深入研究，優化後端狀態機設計和低層驅動程序開發，給出了完整的pci介面方案實現高速dma數據傳輸，完全可以滿足視頻傳輸要求；深入研究了基於大規模可編程器件的數字系統設計方法，針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點，提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案，從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。 -
This paper has set up a platform of multi - parameter nonlinear study and multi - parameter estimate to reservoir by means of the technology of multi - attribute transformation and neutral network combined with multi - attribute analysis of seismic parameters, reservoir inversion and reconstruction of reservoir geophysical characteristics on the foundation of large numbers researches and data - drive law in prediction of reservoir so as to provide more accurate geology conclusion and exploration deployment scheme in practical application. besides, concrete example analysis has been made on this technology aiming at different types of oil - bearing reservoir prediction. summing up the characteristic of this technology, this paper point out its further direction in development
基於上述目標，本文主要做了以下幾方面的工作：詳細分析了石油勘探局中多種儲層預測方法的技術特點及本身在解決實際地質問題上的不足之處；在繼承前人研究和技術的基礎上，以「數據驅動法」為數學物理的理論基礎，通過多屬性變換和神經網路技術，把地震參數的多屬性分析技術、儲層反演技術和近年出現儲層物理特徵重構的技術思想有機地結合在一起，建立起一套儲層多參數非線性預測研究和儲層多參數估算技術平臺；對該項技術針對不同類型含油儲層的預測研究做出了具體的實例分析；總結了該項技術的特點，並指出進一步的發展方向。 -
Abstract : the paper narrates the essential basic learning of thinking of viewing drawings and the techniques of projection of point, line and plane, introduces the basic ways of thinking and the steps of viewing drawing, and makes a summing up and an analysis on the basic law of thinking of viewing drawings
文摘:敘述了看圖思維必備的基礎知識和記憶點線面投影特性的技巧，介紹了看圖思維的基本方法及看圖步驟，對看圖思維的基本規律進行了歸納和分析 -
Aimed at resolving the problems above, based on the summing - up of previous research, this paper summarizes the district economic development theory, district development layout theory, industrial agglomeration theory, district competitive advantage theory, and modern urbanization theory. in the paper, we use the spatial structure theory to study the urban management, point out the problems in the urban management and countermeasures to resolve them. according to the practical situation of fund deficit for city construction, we investigate many financing styles. we also set up the city core competencies evaluation index system and point out the countermeasures to heighten the urban core competence
針對上述問題，本文在總結前人研究成果的基礎上，概述了區域經濟發展理論、區域發展規劃理論、產業集聚與區域競爭優勢理論和現代主要的城市化理論；研究了空間結構理論在城市經營中的應用，對城市經營存在的問題進行了剖析，並相應提出對策；結合城市基礎設施建設資金匱乏的實際，研究了各種融資方式；構建了城市核心競爭力評價指標體系，對提高城市核心競爭力提出了對策。
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