permeability control 中文意思是什麼

permeability control 解釋
透氣性控制
  • permeability : n. 1. 透過性,可透性,滲透性;滲蝕度;【航空】(氣球氣體的)透出量。2. 【物理學】磁導率,磁導系數(=magnetic permeability)。
  • control : n 1 支配,管理,管制,統制,控制;監督。2 抑制(力);壓制,節制,拘束;【農業】防治。3 檢查;核...
  1. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體,需要嚴格控制配方中各種原材料的含量,優化配方;由於粉體活性受預燒條件的影響,所以對不同要求的鐵氧體選擇的預燒條件就不一樣,適當降低預燒溫度有利於獲得較高的起始磁導率,而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求,可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件,本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝,適宜的燒結工藝可以獲得理想微結構和組成,從而得到高性能的鐵氧體材料;而從材料的微結構上來看,要提高材料的截止頻率,就要適當地細化晶粒、增加晶粒內部的氣孔。
  2. So it has good porosity. the sand body distribution is under the control of sedimentary faces ; source rock, reservoir rock and cap were affected by sedimentary sequence, porosity and permeability were affected by diagenesis, the three elements make the basis of petroleum system space - time unit distribution pattern

    鄂爾多斯盆地上三疊統延長組其沉積相帶控制著砂體的空間展布,沉積層序影響著生儲蓋的空間配置,成巖作用影響著儲層物性的變化,三者在時間、空間上有規律的變化為生儲蓋組合的時空配置奠定了基礎。
  3. By using the larger magnetic permeability, magnetic fluid was used to improve the magnetic circuit efficiency in torque motor, enlarge the output torque and displacement of torque motor, and the output flow of servo valve. correspondingly, the ability of noise - overcoming and system damping was enhanced due to the property of magnetic fluid. as a result, the stability of servo valve and servo - control system can be improved

    由於磁流體具有較大的導磁率,可提高力矩馬達磁路效率、增大力矩馬達的輸出力矩和位移,從而增加伺服閥的輸出流量;同時,利用磁流體的粘度特性,可增強力矩馬達阻尼及抗干擾能力,從而增強伺服閥及伺服控制系統的穩定性。
  4. Methods : the methods of the increase of blood capillary permeability of the abdominal in mice induced by injection of acetic acid and the swelling of the ear in mice caused by crotin were used for anti - inflammatory experiments, aspirin and hydrocortison were respectively used as the positive control ; the methods of abdominal pain in mice induced by acetic acid and woolfe - macdonald were used for analgesic experiments, morphine hydrochloride as the positive control

    方法:小鼠隨機分組,抗炎實驗用醋酸誘發小鼠腹腔毛細血管通透性增高和用巴豆油誘發小鼠耳腫脹,陽性對照分別為阿斯匹林組和氫化可的松組;鎮痛實驗採用醋酸誘發小鼠腹痛和用熱板誘發小鼠足痛,陽性對照為鹽酸嗎啡組。
  5. Intelligent optimization control of grate process centring on permeability

    以透氣性為中心的鏈篦機過程智能優化控制
  6. Abstract : yanchang series is a typical low permeability reservoir, and its favourable sandstone reservoir is delta facies. heavy compaction, cementation and heterogeneity exist in it. according to the analysis of the main control factors of forming the secondary pore, it is held that the secondary pore in longdong area is controlled by both favorable facies belt and abnormal formation pressure. it is also held that the formation of the abnormal formation pressure is due to the dewatering of the clay mineral during diagenesis because the dewatering time is identical with the decarboxylation time of organism. organic acid and co2 are driven to adjacent favorable reservoirs under the abnormal formation pressure, and a lot of secondary pore is produced in the runners. from the present exploration result, it is useful to predicting the development of secondary pore to study the distribution of abnormal formation pressure

    文摘:陜甘寧盆地三疊系延長統是國內外典型的低滲特低滲油田,儲集層主要為三角洲砂體,壓實作用和膠結作用強烈,儲層非均質性非常嚴重,因此預測次生孔隙發育帶是尋找油氣聚集帶的關鍵.通過對陜甘寧盆地隴東地區延長統次生孔隙形成的主控因素分析,認為陜甘寧盆地延長統次生孔隙的形成除了受沉積有利相帶控制外,還與地層異常壓力的作用密切相關.研究認為隴東地區異常壓力的形成機理主要由於成巖過程中粘土礦物脫水作用.粘土礦物大量脫水時間正好與有機質脫羧期相一致,從而在異常壓力作用下將生油巖中的大量有機酸及co2帶到與之相鄰的儲集層中,並沿著有利儲集相帶運移,在酸性水經過的地方形成大量的次生孔隙,為後期油氣運聚提供有利通道及宿住空間,從現今的勘探結果來看,通過研究地層異常壓力縱橫向分佈特徵,並結合有利相帶研究預測次生孔隙育良帶是行之有效的方法
  7. Yanchang series is a typical low permeability reservoir, and its favourable sandstone reservoir is delta facies. heavy compaction, cementation and heterogeneity exist in it. according to the analysis of the main control factors of forming the secondary pore, it is held that the secondary pore in longdong area is controlled by both favorable facies belt and abnormal formation pressure. it is also held that the formation of the abnormal formation pressure is due to the dewatering of the clay mineral during diagenesis because the dewatering time is identical with the decarboxylation time of organism. organic acid and co2 are driven to adjacent favorable reservoirs under the abnormal formation pressure, and a lot of secondary pore is produced in the runners. from the present exploration result, it is useful to predicting the development of secondary pore to study the distribution of abnormal formation pressure

    陜甘寧盆地三疊系延長統是國內外典型的低滲特低滲油田,儲集層主要為三角洲砂體,壓實作用和膠結作用強烈,儲層非均質性非常嚴重,因此預測次生孔隙發育帶是尋找油氣聚集帶的關鍵.通過對陜甘寧盆地隴東地區延長統次生孔隙形成的主控因素分析,認為陜甘寧盆地延長統次生孔隙的形成除了受沉積有利相帶控制外,還與地層異常壓力的作用密切相關.研究認為隴東地區異常壓力的形成機理主要由於成巖過程中粘土礦物脫水作用.粘土礦物大量脫水時間正好與有機質脫羧期相一致,從而在異常壓力作用下將生油巖中的大量有機酸及co2帶到與之相鄰的儲集層中,並沿著有利儲集相帶運移,在酸性水經過的地方形成大量的次生孔隙,為後期油氣運聚提供有利通道及宿住空間,從現今的勘探結果來看,通過研究地層異常壓力縱橫向分佈特徵,並結合有利相帶研究預測次生孔隙育良帶是行之有效的方法
  8. Textiles - measurement of water vapour permeability of textiles for the purpose of quality control

    紡織品.質量控制用織物的水蒸氣滲透性測量
  9. According to the underground pressure distribution rule and the separation control function of drainage borehole, the shallow hole drainage technology is studied and tested by using the characteristic that the gas permeability may have an obvious increase after mining in front of the working face, obtaining some useful parameters, showing that the technology is feasible and credible

    根據礦山壓力分佈規律和抽放鉆孔的隔斷控製作用,並利用工作面前方煤體受采動卸壓后透氣性顯著提高這一特性,研究並試驗了卻壓區淺孔抽放技術,獲得了該抽放技術的工藝參數。
  10. In order to improve oil displacement efficiency of infusing agents and precisely to predict the three dimensional distribution about residual oil, taking the sand body of p 2 individual meandering river - channel in putaohuareservior of daqing oilfield as an example, by analyzing the thin interbeds and vertical permeability discrepancy, this paper brings forward the space configuration of the thin interbeds in single sand body, the vertical permeability distribution and gravitational differentiation which control the distribution of residual oil and the vertical multisection model of displacement efficiency in the condition of excluding exploitation factors and identical single sand - body,

    摘要為了進一步提高注入劑驅油效率以及準確預測儲層中剩餘油在三維空間的分佈,以大慶油田葡萄花油層組p 2小層曲流河道砂體為例,通過對曲流河道砂體內部薄夾層構形及滲透率垂向分佈的差異性分析,在排除開發因素差異的同井單砂體分析條件下,提出了單砂體內部薄夾層空間構形、滲透率垂向序列與重力因素共同控制剩餘油分佈、驅油效率多段垂向序列模式。
  11. This is the direct reason of bad reservoir property of sandstone, especially lower permeability. the influence and control factors of reservoirs include : deposition, diagenesis and tectogenesis. the deposition is the basic factor, it control the shape and distribution of sand body, and influence the type and the intensity of the diagenesis ; the diagenesis is the key factor, it control the process of pore evolvement, so the diagenesis control the sandstone ' s storage space and reservoir quality directly ; the fracture of the tectogenesis formation could improve the porosity and permeability of sandstone

    其中沉積作用是基礎,控制了儲集砂體的形態特徵和分佈范圍,同時由於不同沉積類型砂體在碎屑成分組成、泥質含量、顆粒粒度、砂體厚度、砂體內部的非均質性、孔隙介質的物理化學性質等方面不盡相同,從而也影響著砂巖所經歷的成巖作用路徑、類型和強度,因此沉積作用是控制儲層發育的主導因素;成巖作用是關鍵,直接決定了砂巖的孔隙演化過程,從而決定了儲層內部儲集空間特徵和儲集性能;而構造作用形成的裂縫對改善砂巖的儲滲性能具有一定作用。
  12. Research on temporary ahead fluid system used in high permeability cement sand control technology

    高滲透水泥防砂暫堵型前置液體系研究
  13. Experimental research on permeability of burnt rock under servo - control condition

    燒變巖石伺服條件下滲透特性試驗研究
  14. On intelligent integrated modeling amp; optimized control over permeability of pb - zn sintering process

    鉛鋅燒結過程透氣性的智能集成建模與優化控制
  15. On intelligent integrated modeling amp; amp; optimized control over permeability of pb - zn sintering process

    鉛鋅燒結過程透氣性的智能集成建模與優化控制
  16. Characteristics and master control factors of petroliferous properties of low permeability clastic reservoirs of yan - chang formation in the upper triassic of jiyuan area in ordos basin

    鄂爾多斯盆地姬塬地區延長組碎屑巖儲層低滲特徵及含油性主控因素
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