down-flow system 中文意思是什麼
down-flow system
解釋
下流式系統-
The key to the fft algorithm is the design of butterfly computation and that of the address logic. the whole schema is designed in the top - down design flow and described in the vhsic hardware description language ( vhdl ), basing on these, we do our research on reconfigurable technology. the result indicates that the data processing ability of reconfigurable system improved greatly
結果表明，可重構系統在數據處理能力方面比以往的系統有了很大的提高，本設計實現的fft重構處理器可工作於60mhz下，完成一個16點fft需要132個主時鐘周期，完成32點fft需要324個主時鐘周期，而且具有一定可重構性，可以方便地將其運算點數進行擴展，或將其他的圖像處理演算法在實時處理系統中實現。 -
This design for mvbc system adopts top - down eda common design flow. circuit design adopts veriloghdl coding description. function simulation and timing verification adopt simulation tool vcs of synopsys inc, the logic synthesis tool and fpga programming tool adopt the quartus ii of altera inc, and the fpga advice stratix ii ep2s15
該mvbc系統設計採用業界通用的自上而下的eda設計方法，電路邏輯實現採用veriloghdl硬體語言描述，功能和時序驗證的動態模擬採用synopsys公司的vcs ，而邏輯綜合與fpga實現採用altera公司的集成開發環境quartusii軟體以及stratixiiep2s15的fpga器件。 -
Based on advanced technology, this thesis bring forward the optimal scheme and set down general system - drawings and flow charts. using step7 - micro software, we achieve the auto - control aim in drinking water treatment. in practice, the complexity and non - linaerity exit in the system of water treatment, so we apply fuzzy control in water treatment and design a kind of controller which structure can be altered according to the using - rate of ozone and the variety of water quality
實際飲用水處理系統由於存在復雜性、非線性、時變性，本文根據臭氧生物活性炭水處理工藝存在復雜性、非線性、時變性等特點，將模糊控制應用在水處理這一不確定的非線性時變系統，針對不同水溫下臭氧利用率及水質的變化，設計一種基於系統過程狀態的變結構的模糊控制器，以單片機作為主要控制硬體，按查表方式設計軟體，對進水閥門開度進行在線控制，調節臭氧氣體與進水的比例（臭氧流量及濃度不變） ，達到氣水比最優化。 -
Great difference in pressure for two flow made pressure wave system and it help to extend the delay time for gas in chamber, which increases combustion effusion. second, to increase combustion effusion, the inlet temperature of air and gas should be enhanced in the range of heat releasing in chemical reaction. third, the first work condition is unburned absolutely and the second work condition is burnt in shear layer of inlet and the end of down wall zone in straight segment
對于壓力差很大的兩股氣流，所形成的壓縮波系的結構可以增加燃氣駐留時間，提高燃燒穩定性;為了提高擴散燃燒的效率，在保證能放熱的化學反應溫度范圍之內，應適當提高燃氣及空氣的來流入口溫度;燃氣噴嘴應居於燃燒室軸線上，是改進超音速燃燒室結構的一種思路。 -
It presents the verification strategy used in the whole eda design flow of the chip. the simulation on module level ( inc. post - layout ) uses the software event - driven simulator, the simulation of the associated modules or whole system uses cycle - based simulator and hardware emulator, for the gate - level netlist produced by using top - down design flow, the sta tool can analyze the static timing, and more formal verification is used to ensure the correct function
本章還提出了系統在整個eda設計流程中的設計驗證策略方法：模塊級的模擬（包括布線后的模擬）全部採用事件驅動式的軟體模擬工具來驗證，各大模塊的聯合模擬及整個晶元的功能驗證（寄存器傳輸級與門級）使用基於周期的模擬工具和硬體模擬器；對于採用top - down的設計方法得到的門級網表使用專門的靜態時序分析工具來進行時序分析以及採用形式驗證來保證正確的功能。 -
This dissertation is faced to the process of steel rolling to found network of manufacture material flow, basing on it founding guide line evaluation system of the cost of unit standard producing working procedure, guide line evaluation system of the quality cost of unit standard producing working procedure and guide line evaluation system of performance and efficiency ; and base on the cost data of all kinds of material flows, manufacture flow, flux data, manpower, energy consume, material consume, capital asserts occupied, fund occupied, and the production in working procedure, throughput of the materials in working procedures in the flow and countercurrent flow in the network of material flow of recorded in working procedure producing, using the “ whole closed down lane ” model to describe network of manufacture material flow of steel rolling, found the cost analyzing model system of the network faced to producing process. make the cost increasing of the producing by abnormity material flow in working procedure, and even the cost increasing of the producing procedure as the cost of the management behavior of working procedure fallen under cost evaluation guideline in responsible working procedure, so as to ration measure the factors fast correlated with management behavior by measuring the cost
在企業管理信息化輔助工具所建立的數據平臺基礎上，建立了以基準物流圖模型為基礎的軋鋼生產主流程物流網路拓撲圖，根據圖論的理論求解最大流量和最小費用;計算每個生產節點的加工成本，分離質量成本，克服了單純財務數據進行成本核算所帶來的缺陷;建立了軋鋼生產主流程工序含鐵物料吞吐能力基準圖模型，並根據此模型建立了軋鋼生產主流程工序激勵物流協調性和匹配性、工序響應物流協調性和匹配性分析的過程能力指數計算方法;通過引入決策單元綜合投入與綜合產出效率最優原則的模型和基於投入不變、分析產出是否有效或基於產出不變、分析投入是否有效的模型，實現了對多個績效指標在不同績效值集合之間的相對比較，並可根據投入產出效率準則、或者投入（產出）有效性準則進行排序。 -
A computational method is developed with couples the governing equations of the unsteady flow field and the rigid - body dynamics in six degrees - o f - freedom. 6. facing the complex multi - element and high - lift configuration, a series of methods including multi - zone algorithm and face - to - face technique is developed to lower down the great difficulties of grid generation and finish flow calculation of high - lift system with the dual - time method
採用基於自適應直角切割網格的分區面搭接方法，結合隱式雙時間推進演算法，實現了三維復雜增升裝置繞流的euler方程數值計算，發展了對存在不連續面的高陞力系統外形進行流場計算的一種方便、實用、高效的三維增升裝置繞流計算方法。 -
A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。 -
Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
文摘:本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。 -
5 the conception that top - down system level design and bottom - up building library are parallel operations is proposed for the first time, and the conception of parallel design flow is brought forward according to this
85 、提出了自上而下的系統設計與自下而上的建庫是并行操作的概念，並據此提出并行設計流程的概念。 。 -
In addition, it adopts dis ( distributed interactive simulation ) and the " top - down work downward " constructive design method to prooftest, modify and perfect the process and date flow, including the integrality, rationality, practicality and reliability of the system
從工作、數據流程及系統的完整性、合理性、使用性和可靠性等方面進行檢驗、修改、完善，建立了較為實用合理的數據庫系統，滿足了模擬任務要求。 -
Low power vlsi designs can be achieved at various design levels, which rang from circuit, logic, architecture and algorithmic ( behavioral ) levels to system level, according to the down - top design flow
超大規模集成電路低功耗設計可以在不同的設計層次進行考慮，自下而上分可以分為：物理層、邏輯層、結構層、演算法（行為）層和系統層。 -
According to the requirements and the data flow analysis of high - speed cable telemetry system and the requirements of different kinds well logging down hole tools, in order to meet the needs of the image well logging system, the data protocol had been designed
根據電纜遙傳系統的總體要求和對各種測井儀器進行的需求分析，分析電纜遙傳系統的數據流程，並在此基礎上設計出滿足各成像測井儀器需要的數據協議。 -
This system is perfectly run and it is useful to make a criterion of application flow, improve application efficiency and cut down the application cost
目前，本套系統運行正常，它對規范開發流程、提高開發效率、降低開發成本有一定的實際意義。 -
This paper mainly investigate the production system of luneng taishan cable go down deep, the things are analyzed by two points production flow and information flow, including to the process to produce, the plan compileing to produce, the production ability, the production flow, equipment management and quality management ect. all sorts of problems and their sources are conscientiously studied
論文針對魯能泰山電纜公司交聯電纜生產系統展開研究，從物流和信息流兩個方面系統地分析了企業的生產過程、生產計劃編制、生產能力、生產物流、設備管理、質量管理等方面的情況，研究了企業現存的各種問題及問題產生的根源。
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