金屬豐度 的英文怎麼說

中文拼音 [jīnzhǔfēng]
金屬豐度 英文
metal abundance
  • : Ⅰ名詞1 (金屬) metals 2 (錢) money 3 (古時金屬制的打擊樂器) ancient metal percussion instrum...
  • : 屬名詞1 (類別) category 2 [生物學] (生物分類系統上所用的等級之一) genus 3 (家屬; 親屬) fami...
  • : Ⅰ形容詞1 (豐富) abundant; plentiful; rich; full 2 (大) great 3 (容貌和姿態美好的) fine look...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 金屬 : metal
  • 豐度 : abundance ratio
  1. On the bases of the galaxy evolution theory, we use the therotical chemical evolution model of three zone ( such as halo, thick disk and thin isk ) and multi - phase ( diffuse gas, molecular clouds, stars of both low and high mass, the remnants ). by comparing with the observational constraints, such assurface densities, age - metallicity relation, g - dwarf metallicity distribution in the solar neighbourhood and the correlation between [ a / fe ] and [ fe / h ], supernovae rates, infall rates. the rationality of the model is verified. based on the theory model, we calculate the abundance of neutron capture element

    本文正是在銀河系化學演化的基礎上,利用銀河系的三成分( threezone ) (即暈、厚盤和薄盤)多相( multi - phase ) (氣體,分子云,大、小質量恆星以及剩餘物質)的化學演化的理論模型,通過與觀測約束(質量面密、場星的年齡-金屬豐度關系、太陽附近g矮星含量分佈函數、三成份的特徵量、元素的星系化學演化、超新星的爆炸率、內落速率等)的比較,來檢驗模型的合理性。
  2. Thirty - one crystals of polyoxometalates ( 1d, 2d, 3d ) were prepared by means of middle hydrothermal technique, molecular design and self - assembly, and characterized structurally by single crystal x - ray diffraction. the thermal stability, activity of catalysis and magnetism of some compounds were systematically studied. the continuous appearance of p - v - o, p - mo - o, v - mo - o, v - o system with novel structure enrich polyoxometalate chemistry, the reaction characterization and the synthesis law of molybdates, tungstates and vanadates under hydrothermal conditions were explored

    由於p - v - o 、 p - mo - o 、 v - mo - o 、 v - o體系新結構不斷出現,富了多氧酸鹽化學,探討水熱條件下釩、鉬、鎢物種的反應特性和生成規律,研究原料的選擇、配比、加料順序、濃、酸、反應溫、反應時間等因素對產物的生成及結構的影響,為新的催化劑、導電材料、磁性材料的研製與開發積累經驗。
  3. Soil microbial biomass and viable population size ( plant counts ) were negatively affected by the elevated metal levels, but the size of soil basal respiration rate and microbial metabolic quotients were positively influenced by the increasing heavy metal pollution levels. microbial community structure also changed with increasing contamination, as indicated by biolog data and principal component analysis of biolog community metabolic profiles. soil microbial metabolic profiles ( awcd ) values, community richness and diversity index in mine - soils decreased remarkably as compared

    相關分析結果表明,土壤重含量和土壤基礎呼吸、微生物量cfn 、代謝剖面( awcd ) 、微生物商( cmic / corg ) 、代謝商( qc02 )與人工栽培的香根草植物地上部分呈顯著或極顯著正相關(卜0 . 6653飛0 . 8945 」 ) ;微生物量c 、微生物量n 、生化作用強、酶活性、群落shannon指數( h )和微生物群落( s )與人工栽培的香根草植物地上部分生物量呈顯著或極顯著地負相關( r =一。
  4. ( 2000 ). the neutron irradiation is assumed to derive primarily by the reaction 13c ( a, n ) i60 with a minor contribution from the marginal burning of 22ne through the channel 22ne ( a n ) 23mg in the final, high temprature phase of each flash. and we considered the influence of the various parameters such as the initial core mass, the envelope mass, the mass - loss rate, the overlap factor and the delution factor etc., and we vary their value with the pulse number

    本文採用分叉s -過程反應通道,以~ ( 13 ) c ( , n ) ~ ( 16 ) o 、 ~ ( 22 ) ne ( , n ) ~ ( 25 ) mg為雙脈沖中子源,用最新的中子俘獲截面,利用gallino和busso等人給出的agb星三殼層核合成模型,考慮到核心質量、挖掘程、重疊因子、稀釋因子及星風質量損失率隨脈沖數的變化,詳細計算和研究了各個金屬豐度情況下的3m 。
  5. The average abundance distributions of heavy elements in metal - poor stars can provide fairly direct and detailed information on the nucleosynthesis in every stage after the formation of galaxies. furthermore, it can put more accurate constraints on the chemical evolution of neutron - capture elements. the solution to this problem will have important effect on the solution to a series of problems about nuclear astrophysics and the galactic evolution

    星的中子俘獲元素分佈能提供星系形成后各個階段核合成的較為直接和詳細的信息,並為星系化學演化的研究提供更為準確的約束,這一問題的解決將對核天體物理及星系化學演化的一系列問題的解決產生重要影響。
  6. Coal, iron, limestone, dolostone, vein quartz and water resources reach better complementary ; nonmetal ores have abundant reserves and distribute in flakes centralized ; cross railway, network of highways, network circuit in the district, offer the advantage to concentrate on exploitation and transportation and processing

    煤、鐵、石灰巖、白雲巖、脈石英等礦產資源與水資源達到了較好的配套程;非礦儲量富,分佈連片集中;區內鐵路、公路網、電路網路縱橫交錯,為礦產資源的集中開采、運輸、加工提供了有利條件。
  7. Soil pollution index and olsen - p content were more closely related to species diversity in polluted soil, while ph and olsen - p content were more closely related to spore den sity

    污染土壤中,綜合污染指數和速效磷含量是影響種的的主要因素,土壤ph值與重綜合污染指數是影響孢子密的主要因素。
  8. The high metallicity of disk gcs was caused by the particular environment they are situated. because of the strong interaction wjth the disk, the extent of outflow and star formation efficiency ( sfe ) of the disk gcs was quite different from the halo gcs, which leads to the significant difference between the metallicity distribution of two classes of gcs

    本文建立的自增演化模型對球狀星團的余雙峰分佈提出了一種新的解釋,指出盤族球狀星團之所以出現較高的,是因為它處于銀盤這一特殊的環境下,與銀盤相互作用而造成比暈族球狀星團更為強烈的增
  9. Adopting single pulse neutron exposure 22ne ( a, n ) 2dmg and the updated neutron cross section, making use of the core helium burning model of the single neutron exposure theory, we calculate the s - process nucleosynthesis in massive stars at different mettalicity and compare the results with the solar s - weak component

    我們採用單脈沖中子源『 zne ( a , n ) zsmg ,採用最新發表的中子俘獲截面,用中心氦燃燒模型計算了各金屬豐度情況下15m m叼0m 。的大質量星的s過程核合成,並將所得結果與太陽的s刁分量進行比較。
  10. Abundance and potential ecological risk of heavy metals in peat of northern shaanxi

    陜北泥炭中重元素及其潛在生態危害
  11. Simple organic molecules tend to be colorless with electronic transitions in the uv, whereas visible absorption, or color is usually associated with electronic in extended and conjugated structures. color is influenced considerably by the extent of conjugation, as well as by the molecular environment imparted by substituents. the reports on organic hydrate thermochronlic material are relatively fewer

    本文利用液相和室溫/低熱固相反應合成出變色溫較高的具有良好熱色性的雙席夫堿及其配合物;過渡離子具有d軌道,其配合物容易引起d - d躍遷或荷移躍遷,因而它們具有富的顏色。
  12. Our yields increase with the mass of the progenitor main - sequence stars. massive stars ( i. e. 18m < m < 50m ) is the primary sites of the neclearsynthesis of the r - process and can explain the galaxy chemical evolution. 3. we present formula to calculat the r - process galactic chemical evolution of ba peak elements. this formula contains metallicity abundance and point out the relation of the ba peak elements and disscuss the effect of various mass supersnova. besides, our formula can be confirmed by a lot of observations

    由此可以解釋以下觀測事實: ( l ) mg , eu均產生於snh星,但質量范圍不同,在高質量( > 20 ) eu的產量高, mg的產量(相對于太陽) ,導致暈星中eu / mg > 0 ,而產生mg的質量范圍較大,致使在厚盤的晚期較小質量超新星也開始對mg有貢獻,而這些星對eu的貢獻很小,致使在厚盤星中eu / mg < 0 ,在厚盤中eu / fe隨金屬豐度的升高而降低,仁mg / fe隨金屬豐度的升高而不變
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    下面為以1 fpd平板顯示器零件元件散光板偏光板製造商2切削加工行業3精密薄板加工行業為主的能達到微米級精的加工製造商介紹一款最適合進行「精密尺寸測量」的商品。尺寸自動測量裝置gs系列:變化富,可測定從100100mm .到15001200mm的各種尺寸的工件。
  14. At the same time, the result of the functional diversity of soil microbial community indicated that soil microbial metabolism quotient ( awcd ), microbial community richness and shannon index all decreased significantly in red soils polluted by cadmium and lead compared with non - polluted soils. these results suggested the structure of microbial community have changed, decreased the functional diversity of microbial community, and reduced the microbial number utilizing different carbon resources

    Biologgn測試結果顯示,鎘、鉛污染紅壤微生物群落代謝剖面( awcd )及群落、多樣性指數均顯著低於非污染土壤,表明重污染引起了土壤微生物群落功能多樣性下降,減少了能利用有關碳源底物的微生物數量、降低了微生中義摘要物對單一碳源底物的利用能力,最終導致土壤微生物群落功能多樣性發生變化。
  15. The abundance of feed nuclei 6fe of s - process is proportional to metalicity

    Fe族元素作為種子核,金屬豐度與[ fe h ]成正比。
  16. 2. the abundance distributions of the sbl component part with 92 a132 are nearly similar to the solar pattern at any metallicity

    S _ ( ml )分佈與太陽系有差異,但對于質量范圍92 a 132 ,任何金屬豐度下分佈與太陽系相應分量大體相似。
  17. Thus the cumulative consequence of galactic chemical evolution starting from low metallicity agb stars, namely, the average abundance patterns of sbh part with 140a204 ( or the snl component part with 92a132 ) in different metal conditions, should be similar ( ornearly similar ) to the corresponding solar s - bajn component

    金屬豐度條件下,由於中子輻照量隨金屬豐度的降低而升高, s _ ( ml )產量低於s _ ( mh ) 。雖然s _ ( ml )分佈與太陽系有差異,但對于質量范圍92 a 132 ,任何金屬豐度下分佈與太陽系大體相似。
  18. It is also pointed out that the " pre - enrichment " ca n ' t be used to explain the bimodal structure of metallicity distribution of gcs

    本文的研究同時指出, 「預增」不可能造成球狀星團系統的雙峰結構。
  19. Consequently the distributions of the corresponding solar s, h component is typical and can serve as a standard pattern in investigating the abundance distribution of neutron capture elements at any metallicity

    因而太陽系的s _ ( ml )的88 a 138部分可以近似做為任何金屬豐度情況下的標準分佈模式。一s
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