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Results showed that:there were significant differences in the carbon to oxygen ratioamong various positions and processingconditions;lignin and abstracts mainly made up the surface of bamboo;high temperature drying resulted in the decomposition of volatile abstracts in the surface,whichindicated some structure of cellulose and hemicellulose,while the effects of processing with boracic acid were not apparent;the bamboo processed in hightemperature and with boracic acid showed decreasedfree hydroxide and activity at the same time;the amount of active free hydroxide of inner layer was higher thanthat of the outer.

结果表明:不同部位和不同处理条件下竹材表面的碳氧比有很大差异;竹材表面主要以木素和各种抽提物为主;高温干燥导致竹材表面易挥发的抽提物分解,使部分纤维素和半纤维素的结构特征得以显露,而硼酸处理效果不明显;高温处理和硼酸处理后竹材表面的自由羟基减少,活性降低;竹黄表面的活性自由羟基的数量高于竹青表面。

This invention discloses a new technology for preparing rear earth ionic doped fiber prefabricated rods with DC-RTA technology in a sol-gel method including preparing sol containing necessary doped ions, coating said sol uniformly on the inner wall of the quartz glass tube and burning it under high temperature to coagulate and vitrify them to a doped layer and repeating the above process to form a fiber prefabricated rod by oxygen and hydrogen flame after the doped layer reaches to a designed thickness and the fiber prefabricated rod can be made to various rare earth ionic doped fibers by an ordinary drawbench technology.

本发明属于光纤制造和光纤激光技术领域,具体公开了一种利用溶胶凝胶方法中的DC-RTA技术制备稀土离子掺杂光纤预制棒的新工艺。该工艺步骤包括预先配制好含有所需掺杂离子的溶胶,将该溶胶均匀涂覆在石英玻璃管的内壁后高温灼烧,使之凝结并玻璃化为一层掺杂层。反复上述涂覆灼烧过程,在掺杂层达到设计厚度后由氢氧焰高温收棒形成光纤预制棒。该方法所得到的光纤预制棒可以通过普通拉丝工艺拉制成各类稀土离子掺杂光纤。

It May expose continuously in 260℃ but the high temperature does not damages it, It may bear 1000℃ the high temperature, 1000℃ the puncture test may continue for a half hour, a half hour later outside the coating starts to carbonize, but the glass fiber is perfect.

可连续暴露于260℃的高温中而不受损坏,可以耐1000℃高温,1000℃破坏性试验可以持续半个小时,半小时后外面涂层开始碳化,玻璃纤维完好无损。

The gaseous impurities in the alloys were well controlled with the sum of C, N and O less than 500wppm. For the first time it was found the strong interaction between Cr-Ti-CON, which reduces the mobility of Ti and CON, enhancing high-temperature strength and the aging-hardening property, and keeping the cold-work induced hardening at higher temperature. Aging-hardening could increase the tensile strength of V-4Cr-4Ti by 30% and could be utilized at 00 C for better economical performane of a vanadium structure. Hydrogen release will occur for the alloys tensile loaded at room temperature, which will affect the safety of a vanadium structure due to the resulting dimensional instability. For hydrogen embrittlement, impact toughness and fracture toughness of the alloy showed higher sensitivity than the tensile test elongation,so the toughness should be used as a new standard for the assessment of the embrittlement. Vanadium alloys were easily oxidized in air.

合金的气体杂质含量得到有效控制,C、N、O总量低于500wppm;首次发现Cr-Ti-CON之间的强相互作用,它使Ti、CON的高温可移动性降低,提高合金的高温强度、增强时效强化特性、使冷加工强化保持到更高温度;时效强化可使V-4Cr-4Ti的强度提高30%,可在低温(00C)下应用,提高构件的经济性;室温下,钒合金在拉应力的作用下,存在着氢释放,带来部件使用中的尺寸不稳定性,影响构件安全;氢脆是钒合金聚变应用的一个关键问题,合金的冲击韧性和断裂韧性表现出比拉伸延伸率更强的氢脆敏感性,应作为评价合金氢脆行为的新标准。

Water is filled into 1/3-2/3 of underground solution cave, and light type nuclear fusion body is put into the cave. Igniting the nuclear fusion body make water reach water vapour state in high temperature and high pressure 300-400 deg.C and 30-40Mpa, which drives rotation of turbo generator to generate electricity. With power being done, exhaust steam is condensed in condensator. Then, igniting the nuclear fusion body is carried out in another solution cave.

一种利用热核聚变能发电的方法,它包括以下步骤:在地下熔洞中注入占该熔洞1/3~2/3的水,并在该熔洞水中放入轻核聚变弹体,引爆该弹体后使熔洞中的水达到300~400℃、30~40Mpa的高温高压水蒸汽状态,并使之驱动汽轮发电机旋转发电,作功后的乏汽经冷凝器冷凝;在另一熔洞水中再引爆一轻核聚变弹体,使该熔洞中的水达到300~400℃、30~40Mpa的高温高压水蒸汽状态,并驱动汽轮发电机旋转发电。

Secondly, the characters of the conidiophore, the extending mode of theconidiogenus cells and conidiogenous pattern are key to distinguish thesefungi at genus level.

嗜热子囊菌光孢变种在45~50℃高温下生长旺盛,产生的纤维素酶在高温条件下保持较高的活力和热稳定性。

The key of the intermediate treatment lies on the proper saucer leaning with slow corrodent, proper Ar ion bombardment sputtering and pre-deposition of pure titanium layers. Measurement of the adhesion force of the composite coatings verified that all the four TiN composite coatings possess higher adhesion strength when compared with the single TiN coating.

在对复合涂层和各单层的制备技术、组织结构、以及涂层的结合力、显微硬度、常温磨损性能、高温氧化特性、高温磨损特性、冲击韧性和模具上的实际应用等方面进行横向比较和全面研究的基础上,首次建立了四种复合涂层及各单层的较全面、系统的综合性能评价体系,为TiN复合涂层的开发和应用提供了理论依据和实验指导。

This studies tested some different ways to slow down heat stress of Holstein cow in summer periods and to improve their milk performance by supplementation of NaHCO_3 and mini-nutritious compound and adoption of physical colling in cowhouse.

试验研究了淮南地区奶牛的发展现状及存在的主要问题,针对夏季高温对奶牛生产性能的不良影响,提出了在现有的饲养条件下,采用在奶牛饲粮中添加碳酸氢纳、微量营养复合添加剂以及物理降温等不同技术措施,以达到减缓季节高温对奶牛造成的不良影响,提高奶牛产奶性能的目的。

Uses completely imports the thermostable nylon (PA66) raw material to add the fire protection textile fiber fine note to become again, has does not plate the electricity, artistic, thermostable and the antiseptic property is good, can when welds and the wave front welds the body had guaranteed that does not distort on machine the board not crookedly, quality assurance, reasonable price!

全部采用进口耐高温尼龙(PA66)原料再加防火纤维精注而成,具有不镀电、美观、耐高温及防腐性能好,能在焊接及过波锋焊时体保证在机板上不变形不歪斜,固定在PCB板上!质量保证,价格合理!

Uses completely imports the thermostable nylon (PA66) raw material to add the fire protection textile fiber fine note to become again, has does not plate the electricity, artistic, thermostable and the antiseptic property is good, can when welds and the wave front welds the body had guaranteed that does not distort on machine the board not crookedly, fixes on the PCB board!

全部采用进口耐高温尼龙(PA66)原料再加防火纤维精注而成,具有不镀电、美观、耐高温及防腐性能好,能在焊接及过波锋焊时体保证在机板上不变形不歪斜,固定在PCB板上!

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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47:5 法老对约瑟说,你父亲和你弟兄们到你这里来了。

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