查询词典 shock surface
- 与 shock surface 相关的网络例句 [注:此内容来源于网络,仅供参考]
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On the geometric modeling, flat surface and curved surface are used to mesh and describe the model;on the electromagnetic modeling. Different basis functions( flat surface roof-top basis function, flat surface RWG basis function, curved surface roof-top basis function, curved surface RWG basis function) and different test functions (line-matching, Galerkin method) are applied to different cells(plat rectangle facet, triangular patch, Bezier patch, parametric surface, curved triangular patch etc.).
在几何建模方面,分别采用平面元和曲面元对模型进行了剖分和拟合;在电磁建模方面,针对不同的单元(平面元、平面三角元,、Bezier元、参数曲面、曲面三角元等)采用不同的基函数(平面roof-top基,平面RWG基,曲面roof-top基,曲面RWG基)和不同的检验函数进行处理。
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The type of shock reflection over 50o wedge model is of regular reflection. The angle between the incident and reflection shock is also being increased as the model surface roughness increased. The flow visualization results indicate that the speed of reflection shock becomes slower.
在50度的模型实验条件下则会产生正规反射,当增加表面粗糙度后会使得射震波与反射震波之夹角增大,由上述两者结果可以发现,其结果可归因於反射震波之移动速度减缓所致,因此增加表面粗糙度必然会使震波反射有减弱的情况发生。
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objective to evaluate efficacy of extracorporeal shock wave lithotripsyfor treating ureteral stones in situ,investigate the cause of higher re-treatment rate.methods total of 687 patients with ureteral stone were received eswl between january 2000 and december 2004,included 455 male(66.2%) and 232 female(33.8%) patients,6 cases have bilateral ureteral calculi,12 cases have unilateral multiple calculi.hence,together 709 ureteral calculi were treated.patients upper ureteral calculi were treated in the supine position,for lower ureteral calculi patients were turned prone.to reduce eswl-induced renal trauma and pain,using lower energy source,adjusted power setting from 9.8 to 13.2kv,limited 1500 shock wavs per one session.no auxiliary procedure were used before eswl.the stone size was measured as the surface area of stone length by stone width on x-ray film.the interval between two treatment sessions was two weeks.results of 709 ureteral calculi,the overall stone free rate was 97.3%(690 calculi),re-treatment rate was 34.1%(292 calculi).according to the performed treatment sessions,one session 467 calculi,the mean stone size 37.27mm2,stone free rate 65.4%(464 calculi).two sessions 138 calculi,the mean stone size 62.48mm2,stone free rate 18.4%(131calculi).three sessions 52 calculi,the mean stone size 79.60mm2,stone free rate 7.1%(50calculi).four sessions 19 calculi,the mean stone size 101.63mm2,stone free rate 2.4%(17calculi).fivesessions 33 calculi,the mean stone size 119.33mm2,stone free rate 3.9%(28 calculi).overall 19 cases(2.7%)turned to other treatment modalities.of 335 upper ureteral calculi,303 achieved stone free (95.8%),re-treatment rate was 38.5%(129 calculi).of 374 lower ureteral calculi,369 achieved stone free(98.7%),re-treatment rate was 30.2%(113 calculi).the re-treatment rate of upper ureteral calculi was higher than lower ureteral calculi(p<0.05,χ2=5.40).the difference of stone-free rate between upper and lower ureteral calculi was no significant(p>0.05,χ2=0.15).conclusion eswl should be considered first line therapy for ureteral stone still.stone burden are the main variable of higher re-treatment rate,upper ureteral stone may moving with respiring during eswl.so efficinet shock wave was decreared,re-treatment rate become higher.
目的 评估体外震波碎石治疗输尿管结石的疗效,探讨再治疗率高的原因及输尿管结石的治疗选择。方法回顾2000年1月~2004年12月间eswl治疗输尿管结石的临床资料687例,男455例(66.2%),女232例(33.8%),平均年龄46.6岁(15~83岁)。有双侧输尿管结石6例,单侧多发性输尿管结石12例(4颗1例,3颗2例,2颗9例),共计输尿管结石709颗(含透光结石13颗)。应用上海爱申公司生产的desunit6030型碎石机,c臂x线球管做结石定位。上段输尿管结石(肾盂输尿管交界处至骶髂关节上缘)取仰卧位,下段输尿管结石(骶髂关节上缘下至输尿管口)取俯卧位。为减少eswl引起的肾损伤和疼痛,应用较低的能量,震波发生器电压从9.8~13.2kv,震波频率1.5s。每次治疗设定为1500次震波。治疗后3天摄腹部平片或b超,以后每隔7日重复检查。假如结石未碎或有残留结石最长径>3mm以上,再次eswl,两次治疗的间隔时间为两周。结石的大小用x线片上的表面积(mm2表示。结果 709颗输尿管结石总的治愈率为97.3%(690颗),再治疗率34.1%(242颗)。其中一次治疗467颗,平均结石大小37.27mm2,治愈464颗(65.4%),3颗改治疗;两次治疗138颗,平均结石大小62.48mm2,治愈131颗(18.5%),7颗改治疗;第1和第2次治疗治愈率(1个月治愈率)为83.8%。3次治疗52颗,平均结石大小79.60mm2,治愈50颗(7.1%),2颗改治疗;4次治疗19颗,平均结石大小101.63mm2,治愈17颗(2.4%),2颗改治疗;5次及5次以上治疗33颗,平均结石大小119.33mm2,治愈28颗(3.9%),5颗改治疗。总计19颗(2.7%)结石改变治疗方式。上段输尿管结石335颗,治愈321颗(95.8%),再治疗129颗(38.5%)。下段输尿管结石374颗,治愈369颗(98.7%),再治疗113颗(30.2%)。经χ2检验,上、下段输尿管结石的再治疗率差异有显著性(χ2=5.40,p<0.05),治愈率差异无显著性(χ2=0.15,p>0.05)。不良反应:血压升高13例(1.9%),震波区域疼痛26例(3.8%),震波进入处皮肤点状淤血33例(4.8%),肉眼血尿128例(18.6%),均于第2、3天自行消失。结论 eswl目前仍是输尿管结石的第一线治疗,结石的大小是再治疗率高的主要因素。结石的位置有影响,上段输尿管结石可随呼吸移动,有效震波次数减少,再治疗率比下段输尿管结石高。eswl前注重病例筛选可降低再治疗率。
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Notch and groove were produced on fiber's surface by plasma's pHysical bump and corrasion, meanwhile oxygenic or nitrogenic radicals were also grafted on the surface. Through hydrolyzation, acetate fiber's surface will be denuded by cellulase enzyme. Surface of the fiber will be granulated and specific surface area will be enlarged by plasma and enzyme treatment, therefore obviously improve fiber's surface performance.
等离子体对纤维的物理撞击和表面刻蚀使纤维表面产生凹坑和沟槽,同时可在纤维材料表面引入含氧或含氮基团;而纤维素酶对纤维素的水解作用,促使纤维表面被剥蚀;等离子体与生物酶处理都能使纤维表面粗糙化,比表面积增加,使纤维的表面性能得到明显改善。
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Remove row and column' and 'put a big number' have been used for the first boundary;a continuous Regional Identification Function is used on the basis of non-variant nodal virtual flux method for the free surface boundary;Gauss formula is used to make the curved surface integral of the free surface boundary transformed as the difference between volumn integral and other curved surface integral to calculate the integral item on boundaries, which avoiding finding the position of free surface, while the continuous Regional Identification Function is applied to calculate volumn integral and surface integral;Crout and PCG method is used for solusion.
对于已知水头边界,采用"去行去列法"和"置大数法"进行处理;对于自由面穿过的单元,在固定网格节点虚流量法的基础上,引入连续的区域识别函数;对于非稳定渗流中自由面边界积分项,采用高斯公式将求自由面的面积分转化为求体积分与其他面积分之差,避免了求自由面的具体位置,同时在计算体积分和面积分时采用连续的区域识别函数;在解法上,采用直接解法和PCG法。
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In this paper, an iterative approach to potential field continuation from curved surface to plane is proposed. The continuation of potential field data from a curved surface to a plane can be viewed as an inverse problem of upward continuation of plane potential field data, getting a linear integral equation. Through viewing the potential field data on the curved surface as the data on the average elevation plane of the curved surface, then using the wavenumber domain generalized inverse algorithm to downward continue the data from the average elevation plane to a given plane, and a topography correction based on the change of curved surface relative to its average elevation is implemented to the downward continued data on the given plane, finally the downward continued data plane is upward continued to the curved surface.
本文提出一种位场数据曲化平的迭代方法,即通过把位场数据曲化平视为平面位场数据向上延拓的反问题,得到曲化平的线性积分方程,再把曲面上位场数据视为曲面平均高程面上的位场数据,利用向下延拓的波数域广义逆算法把平均高程面上的位场数据向下延拓到设定平面上,再根据曲面和其平均高程面的相对起伏对设定平面上的向下延拓数据进行起伏校正,最后再把所得平面上的位场数据向上延拓得到曲面上的位场数据,并进行迭代。
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As a whole,the notable characteristic of primary productivity in size-fractioned structure was that nanoplankton occupied comparatively significant advantage in Beibu Gulf.Nanoplankton has the largest contribution to gross primary productivity,and picoplankton was the secondary contributor,while microplankton the least.The contribution of microplankton for primary productivity in the north Gulf was more than that in the other waters.Nanoplankton and picoplankton contribute more to the gross primary productivity in offshore deep waters than in inshore shallow waters3.The Beibu Gulf can be divided into three ecoregions:Region-Ⅰis the ecoregion in inshore shallow waters of the north Gulf.In average,the water depth is 18m,DIN is 1.88μmol/L,DIP is 0.20μmol/L,N:P is 9.4:1,dissolved silicate is 5.17μmol/L,the Chl a conentration in surface layer is 2.27mg·m~(-3),the assimilation index in surface layer is 3.80mg/,the primary productivity is 198.78mgC/(m~2·d), and potential fishery production is estimated to be 0.24gC/(m~2·a) according to the primary productivity.The ecoregion is mainly affected by the northern coastal water systems,and may be fit for aquaculture;Region-Ⅱis the ecoregion in offshore deep waters of the north Gulf and the coastal shallow waters to the west Hainan Island.In average,the water depth is 35m,DIN is 2.01μmol/L,DIP is 0.18μmol/L,N:P is 11.2:1,disovled silicate is 4.23μmol/L,the chlorophyll a of surface layer concentration is 1.45mg·m~(-3),the assimilation index of surface layer is 4.12 mg/,the primary productivity is 276.60mgC/(m~2·d),and the estimated potential fishery production is 0.34gC/(m~2·a) according to the primary productivity. The ecoregion was mainly influenced by ocean current from the South China Sea, rivers in the west coast of Hainan Island and the water from Qiongzhou Strait.It may be fit for aquaculture and fishery;Region-Ⅲis the ecoregion in offshore deep waters of the mid and south Gulf.In average,the water depth is 75m,DIN is 0.77μmol/L, DIP is 0.15μmol/L,N:P is 5.1:1,disovled silicate is 3.05μmol/L,the chlorophyll a of surface layer concentration is 0.70mg·m~(-3),the assimilation index of surface layer averaged is 3.69mg/,the primary productivity is 350.89mgC/(m~2·d),and the estimated potential fishery production is 0.43gC/(m~2·a) according to the primary productivity.The ecoregion was mainly affected by the circulation inside Beibu Gulf, and may be fit for fishery.
初级生产力的粒级结构的一个显著特点是总体上微型浮游生物在全调查海区均占较明显优势,对总初级生产力的平均贡献最大;微微型浮游生物对初级生产力的平均贡献次之;小型浮游生物对总初级生产力的平均贡献最小;湾北部小型浮游生物对初级生产力的平均贡献高于湾中部和湾南部,而湾中部和湾南部微型和微微型浮游生物对初级生产力的平均贡献高于湾北部,远岸深水区高于近岸浅水区。3、北部湾可以分为三个生态区:湾北部近岸浅水区,该区的环境主要特点是平均水深19m,DIN浓度平均值为1.88μmol/L,DIP浓度平均值为0.20μmol/L,N:P为9.4:1,硅酸盐浓度平均值为5.17μmol/L,表层叶绿素a平均值高达2.27 mg·m~(-3),表层同化指数平均为3.80 mg/,初级生产力平均值198.78mgC/(m~2·d),根据初级生产力计算潜在渔业资源碳生产量平均为0.24 gC/(m~2·a),该区主要受湾北部沿岸水系影响,适合作为水产养殖区;湾北部深水区和海南岛西部沿岸浅水区,该区的环境主要特点是平均水深35m,DIN浓度平均值为2.01μmol/L,DIP浓度平均值为0.18μmol/L,N:P为11.2:1,硅酸盐浓度平均值为4.23μmol/L,表层叶绿素a平均值1.45 mg·m~(-3),表层同化指数平均为4.12mg/,初级生产力平均值276.60 mgC/(m~2·d),根据初级生产力计算潜在渔业资源碳生产量平均为0.34 gC/(m~2·a),该区主要受南部湾口区海流向湾内延伸,沿岸海南岛河流注入湾内和琼州海峡过道水的影响,适合作为渔业作业区和水产养殖区;湾中部和南部远岸深水区,该区的环境主要特点是平均水深75m,DIN浓度平均值为0.77μmol/L,DIP浓度平均值为0.15μmol/L,N:P为5.1:1,硅酸盐浓度平均值为3.05μmol/L,表层叶绿素a平均值0.70 mg·m~(-3),表层同化指数平均为3.69 mg/,初级生产力平均值350.89 mgC/(m~2·d),根据初级生产力计算潜在渔业资源碳生产量平均为0.43 gC/(m~2·a),该区主要受北部湾环流影响,适合作为渔业作业区。
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After 30 days, the cultures were preserved in darkness, and 4 types of resting cysts were found after another 90 days:(1) spherical to ovoid cysts (25-39 μm long) covered by asparse or numerous calcareous attachments (1-4 μm long) and a calcareous surface;(2) spherical cysts (29-35 μm diameter) with a noncalcareous surface attachment, calcareous surface;(3)spherical to ovoid cysts (29-35 μm long) w ithout any surface attachment and a calcareous surface; and (4) spherical c ysts (24- 35 μm diameter) without any surface attachment and an organic surf ace.
培养30天后,培养液中有大量休眠孢囊,将藻液避光保存90天后,观察到培养基中有4种类型的休眠孢囊产生:(1)球形到椭球形(长25-39 μm),钙质外壁,稀疏或密被钙质附属物(长1-4 μm);(2)球形(直径为29-35 μm),钙质外壁,附属物非钙质(长0.5-1.5 μm);(3)球形到椭球形(长29-35 μm),钙质,表面光滑,无附属物;(4)球形(直径24-35 μm ),有机外壁,无附属物。
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Doping Cr into perfect TiO2 (110) surface can create the new active surface state different from that of oxygen defect surface ,AM and transition metals deposited TiO2 (110) surface. Its active surface state is the Cr 3d occupied state near EF and the value of band-gap drop from 3.13eV to 1.16eV, so photocatalysis reaction can perform in visual light area after doping Cr into perfect TiO2 (110) surface.
TiO_2(110)面掺杂Cr 可以产生不同于氧缺陷、碱金属及过渡金属负载的新表面态,其表面态为靠近E_F 的Cr3d 电子占据能带,带隙由原来的3.13ev 降至1.16eV,因此,掺Cr 后TiO_2 可在可见光区发生光催化作用。
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Remove row and column' and 'put a big number' have been used for the first boundary;a continuous Regional Identification Function is used on the basis of non-variant nodal virtual flux method for the free surface boundary;Gauss formula is used to make the curved surface integral of the free surface boundary transformed as the difference between volumn integral and other curved surface integral to calculate the integral item on boundaries, which avoiding finding the position of free surface, while the continuous Regional Identification Function is applied to calculate volumn integral and surface integral;Crout and PCG method is used for solusion.
对于已知水头边界,采用&去行去列法&和&置大数法&进行处理;对于自由面穿过的单元,在固定网格节点虚流量法的基础上,引入连续的区域识别函数;对于非稳定渗流中自由面边界积分项,采用高斯公式将求自由面的面积分转化为求体积分与其他面积分之差,避免了求自由面的具体位置,同时在计算体积分和面积分时采用连续的区域识别函数;在解法上,采用直接解法和PCG法。
- 相关中文对照歌词
- Shock You Again
- Shock To The System
- Shock To My System
- Shell Shock
- Shock Your Mama
- Shock Me
- Gimme Gimme Shock Treatment
- Cracks In The Surface
- High Voltage
- Culture Shock
- 推荐网络例句
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For every one of my New Year resolutions, I have been a backslider for years.
说到我的新年决心,我每年都做
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With empathy and focus on a feeling level, we can all relate to the common ground of mutuality of emotions.
有了同情心和感觉上一级的重点,我们都可以涉及到相互的情感共同点。
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Capacity model of the minor mixed traffic flow under major stream with shifted negative exponential distribution on the unsignalized intersection is set up, and it is an extension of capacity model for mixed traffic flow.
建立了无信号交叉口主车流服从移位负指数分布下的支路多车型混合车流的通行能力模型,发展了无信号交叉口的混合车流通行能力理