結冰試驗 的英文怎麼說
中文拼音 [jiēbīngshìyàn]
結冰試驗
英文
icing test-
Using the 1ap 3 - d hailstorm numerical model, we analyze influence of variation on rainfall amount, hail fallout amount, dynamical process of cloud, microphysical process, mechanism of hail suppression with seeding, and seeding outcome. besides, we use those study outcomes and bring forward some advice about using and improving model. we simulate a hailstorm occurred in nanjing county and analyze influence of raindrop, ice crystal, graupel size distribution on outcome of model
本文利用中國科學院大氣物理研究所的三維冰雹雲催化數值模式,通過對冰雹雲的模擬和對譜參數的數值試驗結果,分析了冰雹雲中粒子譜形的變化,對雲和降水過程的影響,其中包括雨滴譜、冰晶譜、霰譜的形狀參數對自然雲的發展過程、降雨降雹、雲中微物理過程、霰以及冰雹的形成機制的影響。The results show that it has no effect on cloud development and cloud structure, when form factors of raindrop, ice crystal, graupel size distribution ( r, i, g ) vary respectively, r variation has a bigger effect on rainfall amount and hail fallout amount, a, variation has a smaller effect on rainfall amount and hail fallout amount
並利用這些研究結果,對雲模式的使用和改進提出建議。對1988年5月3日發生在南京的冰雹雲個例分別進行了雨滴譜影響的數值試驗、冰晶譜影響的數值試驗、霰譜影響的數值試驗以及雨滴、冰晶、霰譜影響的數值試驗。In the wet lab, the minimum solidification points of freezing point is determined according to astm d1493 - 67
在濕的實驗室中,冰點的最小團結點被依照美國材料試驗學會d1493 - 67決定。Through the construction and survey of the experiment sections, the functional and anti - ice - snow performance of granulated crumb rubber asphalt pavement is proved well, and its relevant technical manual is compiled, deserving extensive use
通過試驗路的觀測,證明了其良好的使用性能和抑製冰雪的能力,並提出了相應的施工技術指南,實體工程應用結果表明其具有良好的推廣應用價值,該研究成果達到國際先進水平。Preliminary conclusions are got through the analysis of the experimental data such as effect of the ice velocity on the ice force, ratio of components of forces when ice sheet acting on the vertical bank - head, ice force ratio of vertical to 45 incline as well as ratio of level ice force to the vertical ice force when acting on 45 incline
對試驗數據諸如冰速對冰力的影響、冰排作用於垂直面堤頭時各向分力的關系比、垂直面與45斜面冰力關系比以及作用於45斜面時其水平與垂直冰力的關系比等進行了分析,並得到初步結論。Optics and optical instruments - environmental test methods - part 14 : dew, hoarfrost, ice iso 9022 - 14 : 1994
光學和光學儀器.環境試驗方法.第14部分:露霜及結冰At the same time, the effects of dragging force from fall of hydrometeors and latent - heat release from phase transfer are tested. from the analyses we conclude that the distributing of the cloud particles relates with temperature closely. huanan heavy rainfall and mei - yu front heavy rainfall have mixed - phase process with vapor phase, liquid phase and ice phase
詳細分析了形成降水的雲物理過程,探討了源匯項對水凝物的貢獻,並通過敏感性試驗,考察了雲物理過程對降水熱力動力過程的反饋作用,研究結果表明:華南暖區暴雨和長江梅雨鋒暴雨的雲物理過程具有汽、水、冰三相混合雲特徵。The result of experiment is that effect of preservation of sodium alginate composite film is better than that of ice glazing
試驗結果表明:海藻酸鈉復合膜的保鮮效果明顯優于常規包冰衣法的保鮮效果。Upon existent theoretical and experimental results and based on a great of laboratory investigations carried out in chongqing university, for the first time this paper studies systematically the insulators dc discharge performance and flashover mechanism of iced insulators in the complex atmospheric environment, which will contribute to the understanding of flashover phenomena observed on ice surface at low air pressure and provide the test and theoretical reference for hv and ehv transmission lines design and safety service
為此,在國內外現有工作的基礎上,通過大量的試驗研究,本文主要研究了復雜環境中絕緣子的直流閃絡特性及閃絡機理。其結果有助於進一步了解低氣壓下覆冰絕緣子的閃絡現象,並可為輸電線路的設計和安全運行提供理論依據。Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出:弧根周圍空氣的熱電離導致了電弧的發展,靜電場力對電弧的發展起到了加速作用,電擊穿僅發生在閃絡最終的跳躍階段;通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數,得到了不同階段電弧(電弧起弧階段、電弧發展階段及完全閃絡)的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下:在人工氣候室內,根據不同覆冰絕緣子正、負極性下的閃絡試驗結果,得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓;正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應;覆冰較少時,合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法,對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明,直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低,且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。The results show that the recovery of lead, gold and silver are 93. 36 %, 91. 02 % and 69. 38 % seperately, and the recovery of copper in matte is more than 98 % when the ratio of lead concentrate to alloy is 230 %
試驗結果表明:當鉛精礦相對合金加入比率為230 %時,鉛直收率93 . 36 % ,金和銀直收率分別為91 . 02 %和69 . 38 % ,銅在冰銅中的直收率為98 %以上。Natural icing flight test for y7 - 200a aircraft
飛機自然結冰飛行試驗The specified performance experiments are conducted for or - 6sx refrigerator, and the reliability and rationality of the model is verified through the comparison of the experimental results and the simulating results
本文以or - 6sx型熱電冰箱作為具體研究對象進行了動態性能試驗,並將計算模擬的結果與試驗進行了比較,驗證了模型的可靠和合理性。Based on the damage mechanics theory, during the freezing and thawing, the ct measurement technology is used to observe the water transference, ice formation, inner microdamage propagation principle and the corresponding damage structure variability
從細觀損傷力學理論出發,利用ct識別先進的試驗技術研究巖石在凍結融化過程中,水分的遷移,冰的形成,內部細觀損傷擴展機理及相應損傷結構的變化。Two test methods are employed : one is loading the samples before thawing, and the other is loading the samples after completely thawed. the coefficient of thaw settlement as a function of granule, as a function of water, and also as a function of dry density are protracted ; besides, the consolidation coefficient of thawed samples as a function of granule, as a function of water, and as a function of dry density are protracted. we can discover from the test results that the thaw - settlement coefficient and the consolidation coefficient of thawed samples are mainly relevant to the granule, dry density and the water content they have little to do with the geology and geography factor of the frozen soils
為了研究季節凍土區工業民用建築的基礎淺埋穩定性問題,特開展了有關季節凍土的融化壓縮特性的研究,先後在內蒙古農業大學三個比較典型的建築地點取了將近三百個試樣,在室內進行試驗,採取兩種試驗方法即先融化后壓縮試驗法和同時融化壓縮試驗法,通過對這三個不同地點的兩種不同的試驗方法的試驗結果進行對比分行,分別繪制了融沉系數與凍土的含水(冰)量、干容重以及顆粒級配的關系曲線;融化壓縮系數與凍土的含水(冰)量、干容重以及顆粒級配的關系曲線,由試驗結果發現凍土的融沉系數和融化壓縮系數都與凍土的含水量呈正向相關關系,可近似的用線性方程來表示;兩種實驗方法的總沉降量與凍土的含水量呈正向相關關系,與凍土的干容重呈反向相關關系,也可以近似的用線性方程來表示。Products and systems for the protection and repair of concrete structures - test methods - determination of thermal compatibility - thermal cycling without de - icing salt impact
混凝土結構保護和修整用的產品和系統.試驗方法.熱符合性的測定.無鹽水浸濕解冰循環法Products and systems for the protection and repair of concrete structures - test methods - determination of thermal compatibility - freeze - thaw cycling with de - icing salt immersion
混凝土結構的保護和修整用的產品和系統.試驗方法.熱符合性的測定.鹽水浸濕解冰熱循環法The study of high freezing - rate facilities using natural coldness resource ( ncr ) was analyzed according to the heat pipe technique in this paper
摘要通過試驗並加以理論分析,研究開發高結冰率的自然冷源貯藏設備。An experimental apparatus has been set up start from scratch and some experiments have been done to study the heat transfer characteristics of the ice - on - coil tank. the comparison of the theoretical predictions and the experimental data has been made and the disagreements between them are also analyzed
建立了導熱塑料蓄冰盤管傳熱性能測試裝置,測試了結冰和融冰過程中載冷劑的進出口溫度、流速和結冰或融冰時間的關系,通過實驗結果與理論計算的比較和誤差分析,驗證了建立的數學模型的合理性。分享友人