熱幅射 的英文怎麼說
中文拼音 [rèfúshè]
熱幅射
英文
radiosity-
As modern humans began to venture out of the tropics, however, they encountered environments in which they received significantly less uv radiation during the year
不過,現代人一旦開始遷出熱帶,就會進入整年紫外線輻射量都大幅降低的環境。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。The new device consists of paint - drying box, heat carrier boiler, heating pipe, expansion tank, gas separator and oil tank, etc. the data of two applied examples shows that heat carrier paint drying method is able to make painting - drying cost drop by 88 %, compared with the conventional one, that it has some advantages such as uniform temperature field, good appearance and lower costs, compared with conventional hot air convection mode
該裝置主要由熱載體烤漆爐、輻射加熱管,熱載體爐、膨脹器、油氣分離器和儲油槽等組成。應用實例的測試數據表明,與傳統的遠紅外電加熱鋼瓶烤漆方式相比較,鋼瓶熱載體烤漆節能和降低能耗費用十分顯著,能耗費用降幅達到88 。與熱風爐對流烤漆方式相比較,熱載體烤漆方法不僅節能,而且烤漆爐溫度場均勻穩定,同時烤漆的外觀質量也得到了明顯提高。Both media with gain and loss as well as amplitude - phase scatterer are considered. a new functional expression is derived for predicting the hot - image intensity
( 3 )對位相型、振幅位相混合型衍射物在理想介質、增益損耗介質中熱像形成的物理規律進行了研究。Urbanization also results in reduction in visibility, increase in cloud amount and decrease in global solar radiation in hong kong. urbanization often causes an increase in suspended particulates in the atmosphere and thus a decrease in visibility. as a result, the amount of solar radiation reaching the ground decreases
城市化通常令大氣中懸浮粒子濃度增加,導致能見度降低,因此,地面所接收的太陽輻射量下降,日間氣溫上升幅度較小,但由於空調系統及其他城市活動同時亦產生了熱能,最終兩個因素的效應互相抵銷,故此最高氣溫只有輕微變化。Urbanization often causes an increase in suspended particulates in the atmosphere and thus a decrease in visibility. as a result, the amount of solar radiation reaching the ground decreases. the rise in temperatures during daytime was reduced but this is more or less offset by the heat generated from air conditioning and other urban activities
城市化通常令大氣中懸浮粒子濃度增加,導致能見度降低,因此,地面所接收的太陽輻射量下降,日間氣溫上升幅度較小,但由於空調系統及其他城市活動同時亦產生了熱能,最終兩個因素的效應互相抵銷,故此最高氣溫只有輕微變化。And then, some improvements have been made on the old single tube pressure wave refrigerator experimental system. the experimental research, such as the ratio of gas charge time to gas exhaust time ( ), the frequency of the jet flow ( f ), the ratio of the expansion ( ), the length of the tube ( l ) and the heat transfer condition, has been carried out on the improved experimental system. the results were drawn as the following : the refrigerating efficiency will be heightened by augmenting when is in 0. 0405 to 0. 1842 ; the highest cooling efficiency will be
實驗考察了有關因素對製冷效率和最佳射流頻率( fopt )的影響並進行了理論分析,結果表明,在= 0 . 0405 ~ 0 . 1842范圍內,製冷效率( )隨的增大而提高;隨射流頻率( f )的變化出現多個峰值,在本文實驗參數范圍內下,第二個峰值點的效率比第一個峰值點高;隨著膨脹比( )的增大,和fopt都略有增大,且低下的增幅比高下的大;強化管外換熱,可使fopt降低、明顯提高。We stored 1000 binary pages in a 0. 03 % ferlinbo3 crystal using this system and batch thermal fixing technique. all the stored images are retrieved, and the retrieved images have uniform diffraction efficiency and good quality
最後,採用分批熱固定方法在fe : linbo _ 3中存儲1000幅二值數據頁,全部讀出所有的圖像,衍射效率均勻,圖像質量良好。We give ptr ' s amplitude and phase signal of one dimension based on the theory of ptr, discuss the ptr ' s signal ' s frequency characteristic, and a method for measuring thermal diffusivity of opaque materials is introduced. then, we study on anisotropic materials " thermal conductivity, the temperature field and thermal conductivity tensor of anisotropic materials is theoretically deduced from the theory of ptr, and is proved by the experiment
從光熱輻射理論出發,推導出一維情況下ptr信號的振幅和位相表達式,討論了光熱信號的頻率特性,介紹了一種用ptr技術測量不透明材料熱擴散系數的優化方法;接著研究分析了各向異性介質受調制激光束輻照下產生的光熱信號,在理論上推導出各向異性介質的溫度場以及熱導率張量並給予一定的實驗驗證。He just wanted to learn how these animals are able to convert infrared radiation - or heat - into a signal that can be processed by the central nervous system, giving the snake a second source of vision
他只想知道蛇是如何把紅外線幅射或熱轉變為中樞神經系統能處理的信號,這使蛇有了第二視力。The machine is applied the infrared ray to heat the pvc / pp shrinkage film, not to effect the packaged stuff, compact, save electricity, rapidity in shrinkage
本機應用遠紅外線幅射能直接加熱pvc / pp收縮膜,不影響包裝物,體型巧、省電、收縮快速。Nonlinear constant r | could be calculated according to the numbers of the diffraction rings. the sample ' s optical limiting properties were discussed. according to the experimental results, we estimated that the main mechanism of the optical limiting was from the thermo - optic effect
對2 -甲氧基5 -丁氧基取代ppv氯仿溶液進行了激光誘導自衍射實驗,根據衍射環的個數估算出了樣品的非線性常數;同時還對該樣品進行了光限幅特性的研究,由實驗結果分析得出:由光熱效應引起的自衍射是產生光限幅特性的主要機制。Materials with strong two - photon absorption ( tpa ) are currently attracting considerable attention in the chemistry, photonics and biology communities because of their potential applications in optical power limiting, upconverted lasering, three - dimensional datastorage, nondestructiveimaging and photodynamic therapy
強雙光子吸收材料由於在激光限幅、雙光子上轉換激射、三維信息存儲、生物體三維成像、光動力學治癌等方面具有誘人的應用前景,成為材料化學、光子學、生物學等領域的關注熱點。It is shown that when the exit area of secondary nozzle and the fuel / oxidizer ratio is fixed, the increase of mass flow rate of secondary flow lead to the decrease of velocity of mixed flow, and increase of total mass flow rate. the synthetical result of these two phenomenon cause the increase of thrust of rocket ejector, but the increasing magnitude is relatively small, indicating that these is no necessary to claim large bypass ratio in rocket ejector design. in the comparison between two configurations, the typical one has better performance, indicating the importance of pressure ratio
結果表明:在固定二次噴管出口面積和氧燃比的條件下,二次流(引射空氣流)流量的增加引起混合氣體出口速度的下降和總流量的增加,二者綜合作用使發動機推力增加,但增幅不大,表明在設計發動機結構和工作參數時,不必過分追求大的引射系數;兩種結構的性能對比分析表明了增壓比對引射火箭性能的提高具有重要意義;對引射火箭的熱力循環分析同樣表明,增壓比對于提高發動機性能非常關鍵。Single burner gas fired overhead radiant tube heaters and non - domestic gas - fired overhead luminous radiant heaters. requirements and test methods for establishing the rational use of energy. radiometric method a
燃氣式單噴嘴裝于頂部的幅射管加熱器和非家用燃氣式裝于頂部的發光幅射加熱器.制定合理使用能源的要求和試驗方法.輻射測量法aSingle burner gas fired overhead radiant tube heaters and non - domestic gas - fired overhead luminous radiant heaters. requirements and test methods for establishing the rational use of energy. radiometric method b
燃氣式單噴嘴裝于頂部的幅射管加熱器和非家用燃氣式裝于頂部的發光幅射加熱器.建立合理使用能源的要求和試驗方法.輻射測量方法b分享友人