閉合環流 的英文怎麼說
中文拼音 [bìgěhuánliú]
閉合環流
英文
closed circulation- 閉 : Ⅰ動詞1. (關; 合) close; shut 2. (堵塞不通) block up; obstruct; stop up Ⅱ名詞(姓氏) a surname
- 合 : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
- 環 : Ⅰ名詞1 (環子) ring; hoop 2 (環節) link 3 (姓氏) a surname Ⅱ動詞(圍繞) surround; encircle;...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 閉合 : close; shutting; synizesis; synezesis; occlusio; closure; make; occlus-; occluso-
- 環流 : [氣象學] circulation; circulating current; circumferential motion; circular current; ring current...
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This article analyzed relevant theories to get better understanding of circular economy : ( 1 ) by adding " decomposer " to economic system, circular economy has built a circle of resource - products - recycled resource, by which the harmonization between economic and ecological systems is achieved. ( 2 ) three principles must be observed in circular economy, and they are reduce, reuse, recycle in turn. according to the order of the principles, the practice of circular economy must conduct cleaner production in enterprises, form ecological community of industry, and build " vein " industry
( 1 )循環經濟的實質是通過模仿生態系統的構造,增加經濟系統中的分解者角色,削減進入經濟系統的資源能源的同時,打造經濟系統中資源一產品一再生資源的物質循環流動的閉合迴路,從系統內部挖掘資源,通過對不可再利用的廢棄物進行無害化處理,使得物質順暢的重新流入生態系統之中,從而將經濟系統中的物質循環與生態系統中的物質循環統一起來,促進經濟系統和生態系統之間的共生協調。The products is of high water hydrophobe device usedin suitable and has the characteristics of aging resistance, resistance, tracking resistance, and corrosive resistance. it can withstand high bent load, strong impact force fn12 - 12 series indoor use high voltage load switch fn12 - 12 and fn12 - 12r is of three phases indoor use ac high voltage load switch for breaking and making the circuit of 50hz, 12kv system under rated loading
Fn12 - 12和fn12 - 12r組合電器是額定電壓12kv額定頻率50hz的三相高壓開關設備用於分合負荷電流閉環電流空載變壓器和電纜充電電流關合短路電流配裝接地開關的負荷開關,可以承受短路電流The thesis highlights the column of designing information which involves : designing information creation, designing information foreseeing, designing information synthesis, designing information boost, designing information gathering and designing information demonstration, covers all the content from the origin and development of information to the ultimate garment exhibition, presents a new point about garment web design which will has a significant impact on the future theory and practice of garment design, points out an idea that : based on the participance of customer, the garment design in the future will be a virtual reality and interaction project in which product design, imagination design and environment design are integrated
本文著重對設計信息欄目的內容進行了設計,包括:創造設計信息、預報設計信息、綜合設計信息、推動設計信息、收集設計信息、展示設計信息,涵蓋了從信息的源流發展演變到網上服裝博覽會最終的展示設計。並提出一個對未來服裝設計理論與實踐產生重大影響的「網路服裝設計」新理念,指出未來的服裝設計遠不是設計師閉門造車,而是在消費者參與下的集產品設計、形象設計、環境設計為一體的一種虛擬現實和互動式的設計。The controller includes two control loops which are outer speed loop ( variable parameter pi adjustment ) and inner current loop ( single - chop current delta - control ). in order to improve system performances, design of digital control system based on dsp is presented. the proportional parameter and integral parameter can be obtained through the design
整個系統採用變pi參數轉速調節(外環)與單斬電流滯環調節(內環)相結合的雙閉環控制方式,為了得到既快速又穩定的恆速系統,本文還給出了基於dsp的雙凸極永磁電機數字控制系統的設計方案,通過此設計方案可以得到轉速環的比例參數kp和積分參數ki的參考值。First, it analyzes the working principle and some features of the system, such as the circulating current characteristics, power distribution characteristics, and characteristics about closed loop regulation of voltage. then it goes on to the study of some typical control methods, and designs on this basis, a parallel controller using a synchronization control strategy of racing to merging and a load - sharing strategy combined with feedback control and drooped control
文中,首先通過建立系統的數學模型,分析了逆變電源並聯運行的工作原理以及並聯系統的一些主要特性,包括它的環流特性、功率特性和電壓閉環調節特性;在此基礎上,又研究了幾種典型的並聯運行控制方式;然後,採用搶占與並發相結合的同步控制方式和反饋與下垂特性相結合的負載均分控制設計了並聯控制器。The steady - state errors of current closed loop system with pi current regulator in stationary and synchronous frames are compared using complex vectors. also, the corrector of rotor displacement control is studied by the root locus method
應用復合矢量概念,對比了靜止坐標系和同步旋轉坐標系pi電流調節器組成電流閉環系統的穩態誤差,並用根軌跡法對轉子位移控制系統的校正環節進行了研究。The design of high - voltage circuit based on pwm technology is briefly described. the closed - loop current control theory using analog instruments is fully discussed, followed which is that using digital instruments. it is an important part that the hardware and software design of the single chip - two arms and two chips - two arms current control circuits with a new chip applicable to digital current control system
簡單介紹了基於開關電源技術的高壓電路設計;詳細講述了模擬穩流電源的閉環穩流原理,並在此基礎上討論了利用數字電路實現穩流的原理及可能性;選擇出適合數字穩流系統的新型晶元,完成了單片雙路穩流系統、雙片雙路穩流系統的軟硬體設計;給出了一種簡單易實現的比例?積分控製程序。The simulation results reveal that water vapor transportation northward is responsible for the generation of the convective instability in south shandong, and the easterly wind from sea, gravity wave and convergence generated by southward invasion of weak cold air in pbl play main role in trigger, transmission and enhancement of convective systems
定性地給出了中尺度對流系統氣流運動的圖像,即:在邊界層,氣流從東南方向斜升流入中對流區,在系統中垂直上升,約在7000米一9000米高空向東北方向流出,形成非閉合的垂直環流。We design inversion control circuit with cmos figure pll cd4046 act as core and microprocessor 80c196kc act as assistant controller. adopting a control method that combine fuzzy controller and pll control, improve induction heating power succeed in startup. adopting electric current voltage pair closed loop feedback design, with trough route capacitance voltage and trough route electric current act as pair closed loop feedback signal, guarantee induction heating power output accuracy
並對系統主電路的元器件參數進行了詳細的計算;設計了以cmos數字鎖相環cd4046為核心、以80c196kc作為輔助控制器的逆變控制電路;採用了模糊邏輯與鎖相環相結合的控制技術,提高了電源的啟動成功率;採用電流、電壓雙閉環反饋方案,採用槽路電容電壓和槽路電流作為反饋信號,從而保證了電源功率的輸出精度。By analyzing the abundance distribution of the calanus sinicus at the fronts in the two surveys, we try to find the direct dominant physical processes. and on the basis of that, provide a simple coupled physical and biological model and apply it in the bohai sea. the position of the tidal fronts and vertical circulation structure near the fronts are examined using the blumberg & mellor 3d nonlinear numerical coastal circulation model incorporating with mellor & yamada level 2. 5 turbulent closure model
論文基於目前國際上普遍使用的blumberg & melior三維非線性環流模型( ecom )並結合mellor & yamada的21 / 2階湍封閉模型,採用blumberg & mellor改進的半隱式數值差分格式,首先對黃海海洋鋒位置及其鋒區環流特徵、形成鋒的主要動力機制等進行了研究。The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back
勵磁電源結合步進電機原理與脈寬調制技術,選用智能功率模塊ipm作為逆變開關器件,輸出交流脈沖勵磁信號,以調節勵磁轉換頻率和勵磁電流大小為手段,實現對磁場旋轉頻率和磁場強度大小的有效調節,並通過閉環反饋實現閉環恆流控制。The type to current transformer is epoxy and silicone rubber insulation. it is fully enclosed and posttype. the terminal of the secondary is sealed tight. the silicone rubber outer cover has excellent ability to anti ? pollution
本型電流互感器採用環氧樹脂和硅橡膠復合絕緣的全封閉支柱式結構,二次出線端封閉嚴密,尤其是硅橡膠外套,防污性能優異。A system design of the circulation function therapeutic instrument of brain is presented in this paper. an integrated prototype is composed of at89c55 used as system controlling module and a / d, d / a converter and liquid crystal display device used as a terminal display module to realize the output of dynamic load and permanent flow through digital synthesis
本文提出了一種設計智能腦電治療儀的系統方案,以at89c55為核心控制模塊,輔以d / a 、 a / d成為全反饋閉環系統,使用液晶顯示器為終端顯示設備,實現數字合成動態負載恆流輸出。Abstract : measures for waste water management from re co very processing of zhushanxia uranium deposit of wengyuan mine is analyzed in th is paper, which include improving process flow, recycling process water used in ur anium mill as much as possible and choosing asuitable disposing system. all these can decrease the amount of waste water, and also reduce costs of disposing waste water and harm to environment
文摘:翁源鈾礦竹山下礦井采冶工程恢復生產過程中,通過改進生產工藝流程、實行工藝水閉路循環及選擇合適的廢水處理方法等綜合措施加強廢水管理,減少了廢水產生量和排放量,降低了廢水處理成本,改善了環境質量。With mixed - refrigerant, the thermodynamic efficiency of j - t cooler can be greatly improved. in this thesis, an open fast - cool - down j - t cooler driven by the high pressure pure nitrogen is investigated, and we also proposed mixed - refrigerant j - t coolers driven by a single stage oil - lubricated air - conditioning compressor. these two systems were studied both in theory and experiment
採用混合工質的j - t節流製冷機在熱效率上比純質有大幅度的提高,本文從理論和實驗兩個方面分別對開式的j - t快速節流製冷機系統和用空調壓縮機驅動的混合工質閉式j - t節流製冷循環進行了研究。The development of science and technology journal is limited obviously by its circumstance such as region, contribution, reader, etc. under the influence of these conditions, the confined mind and the unenterprise attitude is produced by editors. thus, the weak link of developing science and technology journal is showed conspicuously in blazing new trails of content, expanding circulation, and founding famous brand. for expanding the developing space of science and technology journal, some effective measures should be adopted. first, the content and quality of journal should be highly valued. the constantly bring forth new ideas in the content should be promoted by publishing original theses, supporting new subject, introducing new direction, creating characteristic column, etc. by means of these methods, the aim of spreading original achievement, starting new fields of scientific research can be achieved. so academic standard and effect of the journal can be improved. second, the operate mechanism of journal as a processing workshop should be changed. the varied methods should be adopted for selling, circulating and information feedback of journal. third, the reputation of the journal should be safeguarded by correcting ideology of publish. the resources of the journal should be rationally used and developed. it can promote the science and technology journal growing continued
科技期刊的發展受到地域、稿源、讀者等環境因素的制約.受其影響,編輯易產生封閉、不思進取的心態,使科技期刊在內容創新、擴大流通、創立品牌等方面突現出薄弱環節.為拓展科技期刊的發展空間,首先應抓內容和質量,通過刊發創新論文、扶持創新學科、引進創新方向、創辦特色欄目促進科技期刊內容創新,以傳播創新成果,開辟創新領域,提高期刊的學術水平,擴大影響力;其次,應改變純粹的生產單位、加工車間的運作機制,採用多種局道、多種方法加強科技期刊出版后的營銷、流通及信息反饋等工作,走出重生產、輕開發、輕流通的誤區,擴大影響面;第三,應端正出版理念,維護刊物的聲譽,合理利用、充分拓展科技期刊的品牌資源,促進科技期刊的可持續發展First, because pipelines are so complex that controlled object is high order, delay, coupling, nolinear and time - varing, it is difficult to realize closed loop control for it using valid mathematic model. to resolve this problem, the paper presents a fuzzy - pid control algorithm with self - adjusting regulation factor. second, if a moving motor supplied by inverter power is switched to be supplied by power supply, the impact of overload - voltage and overload - current appears
主要針對中、大容量供水系統中,由於供水管網鋪設復雜、彎管多、控制對象具有高階、滯后、耦合、非線性及參數時變的特點,難以利用有效的解析式數學模型進行閉環控制,以及多臺水泵並聯運行時,水泵電機由變頻電源供電向工頻電源供電切換過程中產生的過電壓過電流沖擊這兩個難題,提出了可調整因子fuzzy - pid控制演算法及利用鎖相環控制實現水泵電機由變頻電源向工頻電源的同頻同相平滑切換。The open - looped driving circuit is based on the idealization of the vibration. the square wave voltage and the direct current voltage are combined to drive the gyroscope. influences of square wave voltage are analyzed though simulation. as for the real situation of the vibration, the closed - looped driving circuit is given
開環電路採用方波加直流偏置的等效交流電壓驅動陀螺振動,通過模擬分析了方波驅動形式對陀螺振動的影響;結合開環驅動電路,提出了閉環驅動電路方案。This system is on the safe side and higher efficiency, because of using the field oriented controlled modem technology and the boost - buck converter of dc, the closed loop control of voltage, current and speed, and combining with many ways of safeguard and reducing power wasting
通過應用先進的電壓矢量控制和直流升降壓斬波技術,採用電壓、電流和轉速的閉環控制,結合多種保護措施和降低功耗方法,使得該系統具有工作安全可靠、功耗低等優點。This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination
本論文分析了目前常用比例閥的類型、功能、特性,並針對其不足提出新的改進方案,即:以流量放大,電反饋兩個原理為基礎,通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍,確定主閥結構、功能特性研究等,提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理,並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。分享友人