表明的
- 与 表明的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the case of granite, observation results indicate that the extending routes of active cracks are mainly intercrystalline, transcrystalline, inter-transcrystalline, and intracrystalline. When the strain rate is low, the long intercrystalline cracks are prevailing, and with increasing of the strain rate, the short transcrystalline and intracrystalline cracks gradually increase. The statistic results show that the active crack density increases with increasing of the strain rate, and the mean length of active cracks diminishes with increasing of the strain rate, that is, the induced damage in comminuted product increases with increasing of the strain rate. For the first time this dissertation integrates macroscopic results of comminution with active crack growth under impact loading. It elucidates why the dynamic comminution strength of mineral beds increases with increasing of the strain rate through the active crack extending, and analyzes the influence of structure and constitution of minerals on their damage under impact stress. It is authenticated that both the size distribution and the damage population of comminuted product can be characterized by the fractal.
为分析料层颗粒在冲击下的细观损伤效果,采用德国生产的ASM68K半自动图象分析仪对粉碎生成物中的损伤情形进行了观测,以花岗岩为例,观测结果表明花岗岩颗粒在冲击应力下的活化裂纹扩展路径主要表现为沿晶、穿晶、沿穿晶和晶内等形式,在低应变速率下,活化裂纹以沿晶裂纹较多,随着应变速率的提高,其它裂纹形式大量繁衍,统计结果表明活化裂纹密度随着应变速率的增大而增大,活化裂纹的平均长度随着应变速率的增大而减小,综合表现为颗粒的细观损伤程度随着应变速率的增大而增大;首次将应力作用下的活化裂纹演化特征与粉碎的宏观效果相联系,并就料层动态粉碎强度随应变速率增大而提高的现象从裂纹演化特征的角度进行了解释;分析了矿岩构造结构特性对损伤产生和分布的影响。
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The result showed that:(1) the unrenewable industrial assistance emergy were mainly in the region of farming eco-economic system, and the chemical fertilizers greater impacted on agriculture output;(2) the intensity of emergy use was higher than the national average on agriculture, which indicated that there were a higher levels of investment in science and technology in the region;(3) the net output rate of emergy in the planting economic ecosystem was higher than the level of the national average and developed regions of guangdong province, which showed that the system had higher economic vitality, and the better function of agricultural system, more efficient operation, higher returns of emergy;(4) the rate of environmental loading was a lower level, which indicated that agricultural production had less pressure on the entire regional ecosystems, and caused less damage to the ecological environment, and agriculture, environmental resources for further development and utilization;(5) the sustainable development index in yanqi basin indicated that farming systems in the region belonged to sustainable development areas.
结果表明:(1)焉耆盆地绿洲2006种植业生态经济系统的能值投入以不可更新的工业辅助能为主。在不可更新工业辅助能中,化肥对农业的产出影响较大;(2)该区域的能值利用强度高于全国平均水平,说明农业的科技投入水平较高;(3)系统的净能值产出率高于全国平均水平和发达地区水平,表明系统具有较高的经济活力,农业系统整体功能较好,运转效率较高,能值回报率较高;(4)农业生产对整个区域生态系统的压力较轻,引起的生态环境破坏较小,农业环境资源还有进一步开发利用的潜力;(5)焉耆盆地种植业系统具有可持续发展的潜力。
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The combined production of vertical and horizontal wells can make horizontal well production rates be 2 to 5 times greater than unstimulated vertical well rates, but the areal sweep efficiency is less than that of vertical well pattern untill when the perforation ratio is greater then a certain value, which depends on the pattern of the combination. Seven spot pattern of the combination of vertical and horizontal wells has some advantages over others.
当水平井和直井联合面积布井时,在同样的压差下,水平井的产量要高于相应直井井网的直井产量的2~5倍,但只有当穿透比达到一定程度,或水平井达到一定长度时,其波及系数才高于相应直井井网的波及系数(五点法井网的穿透比界限为0.521,七点法井网的穿透比界限为0.430),因而在水平井开发油气田时,必须保证水平井一定的长度,这样从长远的观点,水平井才能显示出优势,对比性分析表明,水平井和直井的七点法联合布井和直井井网以及水平井和直井的五点法联合布井井网相比,具有一定的优势,数值模拟表明,在水平井和直井的联合面积布井的各种方式中,改进的九点井网是一种较好可取的布井方式。
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Theresults indicated that the initial desorption rate of As was higher than As, but thefinal desorption percentage of As was two times higher than As; that in therange of pH(6.5-8.5), the desorption of As was the lowest(pH=6.5),and thepercentage increased with the pH value increasing or deescalating, but for the As,thepercentage increased with the increase of pH; that the supersonic accelerated desoptionof arsenic and the final percentage was lower than non-supersonic; that on the conditionof UV-light ,in a word, it took negative effect to desorption The"reproduced process"has been used in the procedure of regeneration.
实验结果表明,初始阶段,三价砷的脱附率高于五价砷,但最终脱附率三价砷低于五价砷;三价砷、五价砷在不同温度下的脱附实验表明三价砷的最佳脱附温度低于五价砷的最佳脱附温度;在pH=5.5-8.5时,随着pH的增大,五价砷的脱附率具有先减小再增大的趋势,在pH为6.5时脱附率降至最小;在pH=5.5-8.5时,三价砷的脱附率随pH的增大而增大;不论是三价砷还是五价砷的脱附过程,超声波条件都会促进脱附速率(来源:ecABC论a4文网www.abclunwen.com)的增加,并且最终的脱附率要高于无超声波条件下的脱附率;紫外光照条件下,随着光照时间的增加,两种价态砷的脱附率会达到一个较高的值,再降低。总体而言,紫外光照的存在不利于脱附的进行。
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As showed in Fig.1, the diagrammed stress of short time endurance test forAs showed in Fig.1, the diagrammed stress of short time endurance test for500 hours at 565℃on welded-joint of T91-F12 is 240MPa. Considering the℃on welded-joint of T91-F12 is 240MPa. Considering thedispersity of±20%, stress of check test for 500 hours is 192MPa. The result±20%, stress of check test for 500 hours is 192MPa. The resultof short time endurance test for 500 hours at 565of short time endurance test for 500 hours at 565℃on T91-X20CrMoV121℃on T91-X20CrMoV121welded-joints is showed in Tab.5. The result shows that the short timewelded-joints is showed in Tab.5. The result shows that the short timeendurance stress of weldedendurance stress of welded-joints with two procedures at 565℃for 500 hours-joints with two procedures at 565℃for 500 hoursboth above 192MPa, and meet the requirement.both above 192MPa, and meet the requirement.
依据图1,对T91-F12 焊接接头 565℃温度下的短时持久性能 500 小时考核试验依据图1,对T91-F12 焊接接头 565℃温度下的短时持久性能 500 小时考核试验的图示应力值应为 240MPa,按照持久强度试验数据的±20%的分散度,取 500的图示应力值应为 240MPa,按照持久强度试验数据的±20%的分散度,取 500小时考核试验应力值为 192MPa.T91-X20CrMoV121 焊接接头 565℃、500 小时小时考核试验应力值为 192MPa.T91-X20CrMoV121 焊接接头 565℃、500 小时短时持久考核试验试验结果见表5 ,试验结果表明,两种工艺条件下的焊接接头短时持久考核试验试验结果见表5 ,试验结果表明,两种工艺条件下的焊接接头565℃温度下的短时持久性能,500 小时的持久断裂应力均高于 192MPa,结果符565℃温度下的短时持久性能,500 小时的持久断裂应力均高于 192MPa,结果符合要求。
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The average percent value of G C (49.3%) was less than that of A T (50.7%), there was a bias of the content of G, T in the third codon; The number of transition G-A and T-C were 22, 15 respectively, which were higher than that of transition A-G and C-T, the number of tranversion C-A, T-G is 2 respectively, and other tranversion patterns didnt occur; the probability of transition was higher than that of tranversion , Ts/Tv = 9.5-19, there was the highest number of transition in the third codon. The gamma parameter a of the lst,nd and 3rd codon positions were 0.00572,0.01237 and 1.05239 respectively, they showed that there was adifferent substitution rate at different codon position. Frequences of synonymous codon usage were relatively biased. The average rates of synonymous and nonsynonymous substitution were 0.0787, 0.0011 respectively, there was a significant difference between dS and dN (Z = 4.713, p.01), and the low ratio( CD = 0.0284 .3) of dN/dS ratio impled that there were selective constraints against the nonsynonymous sites in cyt-b gene, The distribution of nonsynonymous codon substitution pattern related to Grantharm distance indicated that the purified selection at 2nd codon positions was more intensive than that at 1st codon positions. The phylogenetic trees supported the view of the double origin of Chinese goose, which means that domestic Chinese goose was derived from Anser cygnoides and domestic European goose, and Yili was derived from Anser anser.
碱基含量分析可知,序列的G C含量(49.3%)<A T含量(50.7%),密码子第三位点的G、T含量都有较强的偏倚性;序列间G→A和T→C的转换数(22次和15次)高于A→G和C→T的转换数(10次和9次),C→A、T→G颠换数均为2次,其余颠换模式均未发生;转换数明显高于颠换数,Ts/Tv=9.5~19,密码子第三位点的转换数最高,呈现了相当强烈的转换偏倚性;密码子第一、二和三位点的gamma分布参数α值分别为0.00572、0.01237和1.05239,表明密码子第一位点的替换速率变异最大,第二位点次之,第三位点的替换速率变异相对较小;编码同一氨基酸的同义密码子并非随机使用,表现出一定程度的使用偏倚性;同义替换速率和非同义替换速率分别为0.0787和0.0011,dS与dN值间的差异极显著(Z=4.713,p<0.01),而ω=0.0284,明显小于0.3,表明雁属鹅细胞色素b基因序列经历了中度净化选择作用;单步非同义替换(Sing-step nonsymonymous codon substitution,SSNCS)分布模式与Grantharm距离之间的关系说明密码子的三个位点所受的净化选择强度不同;构建的最大简约树与邻接树拓扑结构一致,支持中国家鹅的双起源学说,即除伊犁鹅外的其它中国鹅品种起源于鸿雁,伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁。
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Although Arendt did not articulate a dear solution to these problems, she still offer us a specific access to them by analyzing the phenomena which have already existed in the political sphere such as ideological tenor, the end of the Rights of Man, lies, violence, hypocrisy, guilt, evil, and by examining the conceptions such as the natality and the plurality of human-beings, the capacity of actions and thinking, and the sensus communis. She not only argued for the unique of Man but also emphasized the human-beings in the plural sense; Her formulation of her anti- totalitarianism thought not only demonstrated her guard against the possible invasion of the private space made by the public space, but also shows u s her yearning for the re-birth of the public realm; Her inclination to classical republicanism not only echoes the ancient Greek spirit, but also can be interfused into the contemporary philosophical context.
她虽然没有给出一个针对上述问题的清晰答案,但是,她仍然通过对于政治领域中业已存在着的诸种现象--如意识形态恐怖、人权的丧失以及谎言、暴力、伪善、罪恶等一的分析,并通过对于人的&必然诞生&、人的复数性、人的行动能力、思考能力以及判断力、人的共同感等概念的梳理,提供了一个针对上述问题的独到的思考视角;她既论证了人的存在的独特性和不可替代性,但同时也复数意义上的人作了强调;她对于反极权、反强权思想的理论阐述,既表明了她对于私人领域之遭受公共领域与大众社会侵蚀的警惕,同时更表明了她对于公共领域之再生的关心;她的古典共和主义的倾向,既与古希腊精神遥遥相应,又切中了由当代现实问题所引发的诸多理论关切。
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Author was menstruated content of boron and researched the status of lack of Boron and researched relativity of its Influencing facto, the results showed that the average content of available boron in the yellow soil was 0.39±0.27 mg/kg, 80 percent of its was under 0.5mg/kg which was lack for boron and 17.44 percent of its was under 0.2mg/kg which was especially lack for boron; The distribute frequencies of available boron contents of yellow soils in Chongqing was dispersedly, its range of 0.07mg/kg to 1.99mg/kg. The diversity of different zoology area was distinct. The result of pertinence analyses showed that available boron contents had correlativity with the pH(r=0.181** n=281) and CEC(r=0.124** n=281 and It had correlativity with Organic matte When the content of organic matte is high; in addition, soil granule、clime was the Influencing factor of availability of boron in Yellow Soils in Chongqing.
笔者通过调查取样对重庆市黄壤硼的含量进行测定并分析了缺硼的程度,对其影响因素进行了相关性分析,研究结果表明:重庆市黄壤有效硼的平均含量为0.39±0.27mg/kg,其中近80%的土壤样品有效硼含量低于0.5mg/kg,属于低硼或缺硼土壤,还有17.44%的土壤样品有效硼含量低于0.2mg/kg,属于极度缺硼的土壤;而有效硼含量的分布频率比较分散,变幅较大,从0.07mg/kg~1.99mg/kg,变异系数达到69.41%,不同生态类型区土壤有效硼含量的差异十分明显;而相关性分析结果表明:土壤有效硼与土壤pH值(r=0.181** n=281)和CEC(r=0.124** n=281呈正相关,在有机质含量较高的条件下与其相关性也较为显著(r=0.347** n=90,而土壤质地以及气候也对重庆市黄壤硼的有效性有很大的影响
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In range of 300℃~900℃, all the transition metal oxide catalysts could get high ammonia conversion, during the initial stages of the reaction, the SO〓 conversion is relatively low since the catalysts have not been sulfureted, but it increases gradually and attain constant with rising temperature and time continuance,〓 is better than other catalysts in reactivity and elemental sulfur selectivity; XRD indicates that, in the SO〓-SCR process, stable transition metal sulfide is generated which is very important to SO〓 reduction and transition metal sulfide probably is the active phase of catalyst, further the reduction of SO〓 by H〓 to H〓S is the limiting step of all process, then the activity is somewhat related to its lattice oxygen yet not so notable; XPS indicates that little sulfur on surface exists as S〓 in sulfate, showing that TiO〓 could restrain the generation of sulfate.
对于过渡金属氧化物催化剂的研究发现,在300℃~900℃范围内,不同的催化剂均可获得很高的NH〓转化率,反应初期由于催化剂还未硫化,所以SO〓的转化率较低,随着温度升高和反应时间的延续,SO〓的转化率逐渐升高并达到了稳定值;七种过渡金属氧化物中,以〓对于NH〓还原SO〓反应的活性和选择性最好;XRD结果表明在NH〓-SO〓反应后生成了稳定的硫化物相,硫化物对SO〓的还原过程具有重要作用,催化剂的活性相可能是过渡金属硫化物,而且在硫化物催化剂上进行的H〓还原SO〓生成H〓S的反应是整个过程的速率控制步骤,所以催化剂的活性与其自身的晶格氧的氧化还原能力有一定的联系,但关系不明显;XPS结果表明催化剂表面的硫大部分以过渡金属硫化物的形式存在,只生成少量的S〓,说明TiO〓催化剂能够较好的抑制硫酸盐的生成。
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Firstly, we research the Vlasov antenna with reflector mainly. A new method to calculate the radiation of the antenna is founded with Vectorial Theory of Diffraction, and the corresponding program is made. The reflective characters of Vlasov antenna are studied with Moment Methods, and the results show that the total reflected energy is less than 0.25%. The radiation patterns of the antenna are analyzed, and the formulas to estimate the wave beam parameters and to design the antenna are provided. The feasibility of radiating high-order modes by Vlasov antenna is also discussed and verified. The hermetization of the Vlasov antenna is researched and the results show that with such kinds of hermetization the antenna can work under gigawatt level. The design of the mode converter from TEM to TMoi is studied, which is useful when the TEM coaxial mode is radiated by Vlasov antenna. At last, the flared-end Vlasov antenna is also discussed.
在Vlasov天线方面:用矢量绕射理论建立了天线辐射场的计算模型并编写了计算程序,该程序计算结果在主瓣上与实验测量吻合良好,近旁瓣也基本一致;利用矩量法计算了天线的反射系数,表明该天线有较小的反射,总的能量反射小于0.25%;详细分析了天线的辐射特性,给出了天线辐射波束相关参数的估算公式和天线设计公式;进一步研究和论证了Vlasov天线辐射高阶轴对称模的可行性;对天线的密封方式和功率容量进行了讨论,结果表明在不需很大密封罩的情况下可以获得GW级的功率容量;为了用Vlasov天线辐射同轴TEM模,研究了TEM-TM_(01)模式转换器的设计,得到了一些基本规律;最后,介绍和分析了带有锥形喇叭的Vlasov天线。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。