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The results shows that the flow characteristics of SiC-AlN granulated powder is obviously promoted after spray drying and a suitable particles grade match. With the increasing of pressure, the density of green body increases by the style of ladder at the pressure range of 4080 MPa, 80160 MPa and 160220 MPa, the green body is uniform and densification without hard pelleted particles above 160 MPa. The pressureless sintering SiC-AlN multiphase ceramic possesses superior sintering properties and mechanical properties. It is due to the rampart formation of AlN to SiC grain growth and the reaction of SiC and AlN to form 2H solid solution. It results in the grain fining, crack expansion producing bypass and deflection, fracture section producing tearing-open and pulling-out effects, which cooperatively improves the strength and fracture toughness of the multiphase ceramics.

结果表明:喷雾造粒后,复合粉体的流动特性显著提高,粒度级配合理;随着压强增加,坯体密度在40~80、80~160和160~220 MPa范围内呈现阶梯式增长,160 MPa以上成形后素坯均匀致密,无硬球颗粒存在;无压烧结SiC-AlN复相陶瓷具有优越的烧结性能和力学性能,这是由于AlN对SiC晶粒形成生长势垒,并反应生成2H型固溶体,从而细化晶粒,导致裂纹扩展产生了绕道与偏转效应,呈现晶粒撕裂与拨出现象,协同改善了复相陶瓷的强度及断裂韧性。

The results show that shade of cocoon and reeling silk are all even and bright. Color depth in the cocoon is directly proportional to the concentration of additional pigment. With respect to cocoon color, no difference occurs to the male or female when fed with the same concentrated pigment. Within the range of certain concentrations, the red pigment has little effect on the quality of cocoon and cocoon filament. The red pigment has a fast bond with protein. Color of sericin, fibroin, pupa, moth and egg shell are all red.

结果表明:所营蚕茧及所缫蚕丝色泽均匀、鲜艳;蚕茧的色彩深度与添加的色素浓度呈正比;添食同种浓度的色素所得的蚕茧色彩在雌雄之间无差异;经调查,在一定的浓度范围内红色色素对茧丝质无影响;红色色素与蛋白结合牢固,无论丝胶、丝素还是蛹体、蛾体或卵壳均呈红色。

Karyotypes of root tip chromosome showed that the arm volume ratio, the mean relative volume and idiogram were identical before and after improving seed vigor, so the pattern of chromosome did not change. But we couldnt confirm whether the pattern of other separation dates and the inner structure varied in this experiment, such as gene mutation.

根尖染色体核型分析结果,甘蓝种子在活力提高前后染色体的臂比值相同,相对长度相同,表明活力提高后染色体在形态及核型上无明显变化,而对于除中期外的其它分裂期染色体的形态特征以及染色体内部结构有无明显变异在本试验条件下尚不能确定。

The results show that with SiO2/Al2O3 ratio controled between 5.0 and 6.2, keeping the fired glaze at 1260℃ for 25 min, decreasing the temperature sharply to 1170℃ and then slowly to 1130℃, magnesium raw mat glaze was prepared.

结果表明,SiO2/Al2O3质量比应控制为5.0~6.2,釉料烧成时在1260℃下保温25 min,然后急速降温至1170℃,再缓慢降温至1130℃,让玻璃相中过饱和无光剂呈微小晶体充分析出,可制得品质优良的镁无光釉产品。

Based on the reservoir engineering theory of horizontal well,the objective functions ofNPPandSNPVfor integrative evaluating water-free production of horizontal well were derived and established.

根据水平井油藏工程理论,推导并建立了综合评价水平井无水期合理产能的2个目标函数,提出了底水油藏水平井无水期合理产能的计算模型,并以塔中4油田水平井为例进行了分析验证,结果表明该方法简单实用。

Treatments were as follows: fertilization during leaf-expansion period, fertilization during green-leaf period, and no fertilizer. Results showed that individual leaf area, thousand-leaf weight, and leaf distribution were relatively stable with little influence from fertilization. Fertilization during leaf-expansion compared to the green leaf period significantly increased leaf number, leaf weight per plant, and leaf area index. Fertilization during led-expansion also significantly increased the total weight of leaves corresponding to each branch. The 14th to the 17th branches had the largest number of leaves in the canopy with fertilization increasing the weight of each branch but not changing the center of the canopy.

结果表明:毛竹单叶面积、千叶质量和叶片分布受施肥的影响较小,是较为稳定的指标;展叶期施肥处理(处理1)能显著增加单株立竹的叶片数量,到7月底,其单株立竹叶片总质量和叶面积指数分别比绿叶期施肥(处理2)提高14.8%和13.7%,比不施肥提高27.6%和24.5%;冠层14~17档是单枝叶片数量最多的区域,施肥能增加各枝盘叶片的质量,但对林冠重心的分布无影响;单叶叶面积稳定后(6月),处理1的叶绿素测定值和光合速率显著高于处理2和对照,而处理2与对照间无显著差异。

The results show that the white thick-bedded siliceous rocks have high contents of SiO2 and Al2O3 and high ratios of Al/ and Al2O3/(Al2O3+ Fe2O3). The ∑REE are low, and the North American shale-normalized REE patterns are characterized by enrichment of LREE and absence of Eu and Ce anomalies, which suggest that the white thick-bedded siliceous rocks might have been formed in the continental margin environment and affected significantly by terrigenous constituents. The anatase-rich siliceous rocks have high contents of TiO2, Fe2O3, Cu and V but low Al/(Al + Fe+ Mn) and Al2O3/(Al2O3 + Fe2O3) ratios. The ΣREE are high, the North American shale-normalized REE patterns are obviously characterized by left-oblique to flat styles of curves and slight negative Ce anomalies, implying that they might have been formed in an oceanic ridge environment.

研究结果表明,呈厚层状产出的无矿白色硅质岩具较高的SiO2、Al2O3含量及Al/、Al2O3/(Al2O3+Fe2O3)比值,稀土元素总量很低,其北美页岩标准化配分模式为向右倾的曲线,无明显铈异常和铕异常,表明其形成于受陆源影响的大陆边缘构造环境;赋矿岩系中薄层状富钛硅质岩的TiO2、Fe2O3、Cu、V含量较高,但Al/、Al2O3/(Al2O3+Fe2O3)比值较低,稀土元素总量较高,北美页岩标准化曲线为明显左倾型-平坦型,具弱的负铈异常,表明其形成于洋脊及附近环境。

objective to evaluate clinical effect of the handling protaper nickel-titanium rotary instruments in preparation of canals of posterior teeth.methods 96teeth with pulpitis or periapical periodontitis were instrumented by handling protaper rotary instruments using step-down technique,and by k files using step-back technique for control.all teeth were obturated with lateral condensation methods.the efficiency of preparation was analyzed with ra-diographs before and after operation.results no transportation,apical blockage and ledge were found in test.the technique could keep canals smooth.there were two ledge,one instrument fracture and nine transportation in control.the operative time was shorter and post treatment pain seldom occurred in handling protaper group.conclusion the handling protaper niti rotary instruments can prepare the canals effectively and safety.after the preparation,the canals could be easily washed,sterilized and filled.it is an efficient instrumentation method for posterior teeth's canals and be used widely.

目的 评价手用protaper预备后牙根管的临床效果。方法选取患有牙髓炎和根尖周炎的后牙96例,随机分成试验组和对照组各48例,试验组用手用protaper多锥度镍钛旋转器械逐步伸入法预备根管,对照组用k锉,逐步后退法预备根管,两组均用侧向加压充填法充填根管,根据治疗前后的x线片,评价后牙根管预备效果。结果试验组无根管偏移、根尖阻塞、台阶,且根管壁平滑流畅,无器械折断等并发症发生。对照组有2例台阶形成,器械折断1例,根管偏移9例。试验组操作时间短且术后疼痛轻微。结论应用手用protaper预备后牙根管快速、安全,成形效果好,易于根管冲洗消毒及填充,可视为临床上预备后牙根管的有效方法。

The data were analyzed in terms of the procedures, which were explicated by The Grounded Theory in the first stage and The Phenomenology in the second stage. The findings of this study were as follow:(1) The model of drug using was dynamic cycles, including initial drug using, continued using, addiction, reintegration, relapse, re-continued using and re-addiction to drugs. But not all cases entered into this cycle.(2) Some drug abusers may stop using drug because of some reasons, but it was hard to confirm that they didn't reenter this cycle again.

结果发现:进入用药行为的循环历程模式,吸毒者呈现出一个初尝、持续使用、成瘾、重整、再度用药、持续使用、成瘾的循环动态之过程,不过并非每个个案均完全进行循环,在每一个阶段中个案有可能随时因某些因素而中止,但中止并不代表个案即真正戒除毒品,视个案反思、自觉能力的强弱,有无进入深度的痛改而采取行动达到真正的戒除,若无则可能在某些条件的促进下又再度进入吸毒的循环中。

Hemodynamic parameters including heart rate, cardiac output, systolic blood pressure, diastolic blood pressure, mean arterial pressure, central venous pressure,right ventricular end-diastolic pressure,left atrial pressure, and left ventricular end-diastolic pressure were monitored and recorded at 5, 60 and 180 min after cardiac resuscitation with PUCA pump.

结果无辅助、延迟辅助和即时辅助复苏持续时间分别为(38.3±5.8) min、(43.5±9.2) min和(48.7±23.8) min,3组比较差异无显著性(P>0.05);3组成败比分别为0/3、0/2和5/1,差异有显著性(P<0.05)。

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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。

If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.

如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。