metal properties 中文意思是什麼

In fact in the die casting process, when the liquid metal have not solidified completely, in order to break arborescent structures which have already solidified and then proceed fine - crystal intensification, we apply a deforming force, so the mechanical properties of parts produced by liquid combination process of die casting and forging will be improved significantly

其實質就是在壓鑄基礎上，待型腔中的液態金屬還沒有完全凝固時，立即施加一個變形力，打碎已經凝固的枝晶組織。鑄鍛雙控成形工藝主要適合生產形狀復雜和強度要求高的汽車零部件和其它結構件。

A novel materials design procedure based on the co - doping of metal nanoparticle and azo dye compound ( mnpadc ) is developed to improve the properties of functional molecules

為改善功能分子的特性，提出一種基於金屬納米粒子偶氮染料復合物共摻雜超分子結構功能材料的設計新方法。

Electronic and magnetic properties of 3d transition - metal - doped - - 2 chalcopyrite semiconductor

2黃銅礦半導體的電磁性質

An introduction was made to the dry distillation process of coal, anti - metal penetration mechanism of coal dust and influences of various physical - chemical properties of coal dust on its anti - metal penetration ability, view points on coal dust choice and choice methods

摘要介紹煤的干餾過程、煤粉在型砂中的防粘砂機理和煤粉的各項理化指標對其防粘砂能力的影響，以及選擇優質煤粉的觀點和方法。

Heat treatment is a method by which the heat treater can change the physical properties of metal.

熱處理是熱理人員藉以改變金屬物理性能的一種方法。

Effect of laser power on microstructures and wear properties of wcp ni metal ceramics coating

基金屬陶瓷塗層的組織與磨損性能的影響

Two of liquid metal materials, i. e. liquid metal pb - 17li and li, are seriously considered for their physical and chemical properties. liquid metal pb - 17li is one of the most attractive candidates for using as breeder, neutron multiplicator and coolant in dual - cooled waste transmutation blanket of fds

分析了有關液態金屬材料的物理化學特性，經過綜合慎重考慮和研究，選取液態金屬pb - 17li作為氚增殖劑和中子倍增材料，同時也作為冷卻劑和氦氣在包層中分離冷卻。

Synthesis, spectra, nonlinear optical properties and theoretical calculations of metal complexes containing phenothiazine ligand

非線性光學性質研究及理論計算

Professor che pioneered the chemistry of reactive ruthenium - ligand multiple bonded complexes, which he subsequently used to elucidate the mechanisms of atom and group transfer reactions with organic substrates. he discovered a series of biomimetic chemical reactions applicable to the synthesis of pharmaceuticals and fine chemicals. he also pioneered the photochemistry of phosphorescent metal complexes and synthesized, by photochemical means, novel types of reactive molecules that exhibit unique properties and reactivities unreachable by ground state molecules

支教授創立活性釕多重鍵配合物化學並用於揭示原子和基團向有機底物轉移的反應機理開拓一系列可應用於藥物合成和精細化學品合成的仿生物化學反應創立磷光金屬配合物光化學，並利用光化學方法合成具有基態分子所無法達到的特殊性質和反應性的新穎物種。

The thickness of the silver plating layer is in the range of 0. 2 m ~ 0. 5 m. through dta, it is proved that the metal plating layer is compatible with the substrate very well. the research on the testing of the complex decoy ' s properties is detailed below

該文還重點分析了影響鍍層導電性的因素；確定了鍍銀層厚度大致范圍在0 . 2 m 0 . 5 m ；通過差熱試驗，證實了鍍層金屬與基片是完全相容的性質。

The convergent properties of the multimode method are discussed. finally a diplexer employing h - plane t - junction and preassigned e - plane metal - insert branching filters is given. and the scattering parameters of the un - optimized diplexer were obtained by the computer program

在論文的最後部分設計了兩個e面金屬插片濾波器，並把它們作為通道濾波器和h面t形結組成雙工器，用矩形波導雙工器的分析程序對它進行了分析，給出了分析結果。

Electronic structure and physical properties of pt metal

的電子結構和物理性質

Tribological properties of a laser - clad cr2ni3si cr3si metal silicide composite coating

金屬硅化物復合材料塗層耐磨性研究

Having very good damp - proof, waterproof, thermal insulation, heat preservation properties, beipeng extruded boards are the best choice for upending - type and metal fa ? de buildings

北鵬擠塑保溫板具有極佳的防潮、防水、隔熱、保溫性能，因此成為倒置式房屋、金屬屋面的最佳選擇。

The problems can be addressed, in part, through a strongly reactive alloying addition, such as mg, li and so on, and through reinforcement coating. in this paper sicp / al composites and sicp / al - si composites fabricated by the pressureless infiltration method. in order to found out the influence the different quantity of the reactive alloying addition mg si ce on the wetting between sicp and molten metal as well as the properties of mmcs, the behaviors of molten metal, the mechanical properties, micro - structure and the interfacial reactions was investigated respectively

本文通過研究制備sicp al復合材料、 sicp al - si復合材料的過程中，熔融鋁液或鋁硅合金液的浸滲行為、 sic - al 、 sic - al - si之間的界面反應、復合材料的機械性能、微觀結構等，探討了不同量的活性元素mg 、 si 、 ce對sic顆粒與熔融基體之間的潤濕性及復合材料性能的影響。

Metallophalocyanines ( mpcs ) are a kind of centrosymmetric planar organo - metallic molecules with an extensively delocalized two dimensional conjugated - electron system which show a relatively large third order optical nonlmearity, varying upon central metal atom substitution and other factors. other interesting properties of this molecule and many of its derivative products are their versatility, architectural flexibility and high environmental stability, which are very important requirements to implement photo - electronic applications

因其骨架結構特徵和可通過選擇中心離子、軸向配體和在酞菁環上引入功能性取代基等方法進行分子篩選與組裝得到具有特殊的物理化學性質和光、電、催化等功能的材料，而引起化學家和材料學家的濃厚興趣。

In this paper, we reported the structural and luminescent properties of si - based oxide films containing semiconductor si, ge or metal al powders prepared by a dual - ion - beam co - sputtering method ( si - sio2 films and al - si - sio2 films ) or rf magnetron sputtering technique ( ge - sio2 films ), and analyze the pl and el mechanism. 1. the composite films of si - sio2 films were prepared by dual ion beam co - sputtering method from a composite target in argon atmosphere

我們利用雙離子束共濺射和射頻磁控共濺射技術制備了一系列含有半導體si 、 ge顆粒及金屬顆粒al的薄膜，即si - sio _ 2薄膜、 ge - sio _ 2薄膜和al - si - sio _ 2薄膜，分別對它們的結構、光吸收以及發光性質進行了研究。

An improvement on the properties of cold punch by cr - based metal nitride hard coating

基金屬氮化物塗層改善冷沖模性能的研究

The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。

First - principles investigation of magnetic phase transition and half - metal properties of fexmn1 - xsi

族稀磁半導體電磁性質的第一原理計算