ARI
ARI的相关文献在1991年到2022年内共计91篇,主要集中在儿科学、内科学、一般工业技术
等领域,其中期刊论文87篇、专利文献4篇;相关期刊64种,包括中国保健、上海预防医学、中国初级卫生保健等;
ARI的相关文献由193位作者贡献,包括刘纪平、刘大同、宋鸿儒等。
ARI
-研究学者
- 刘纪平
- 刘大同
- 宋鸿儒
- 常春
- 庞景月
- 彭喜元
- 彭宇
- 徐桂玲
- 戴耀华
- 景新
- 李君宝
- 李林祥
- 王继武
- 薛承岩
- 郭力萌
- 郭岩
- Azhar Hussain
- Davi.DH
- FrankJablonski
- George Gachara
- Hiroshi Uechi
- James Maylor Simwa
- Jane Gichogo
- Japheth Magana
- Joege Kempf
- Madeeha Malik
- Mohamed Izham Mohamed Ibrahim
- Moses Rotich
- Musa Otieno Ng’ayo
- Samwel Morris Lifumo Symekher
- Schun T. Uechi
- Vanessa Friedman
- Xie Jingzhi
- 丰水强
- 于宪梁
- 任丽丽
- 任定应
- 任萍萍
- 何光江
- 何惠
- 余定英
- 冯红梅
- 刘世璞
- 刘刚
- 刘昶
- 刘森
- 刘海洋
- 刘玺城
- 刘秋实
- 刘耀敏
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蔡鲲鹏
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摘要:
鉴于手写识别在当今社会的重要性,文章利用加州大学的开放数据集“数据库标题:手写数字的光学识别”进行前瞻性分析,希望为以后的研究提供参考。首先,利用K-means聚类算法建立模型对不同组的手写数字进行聚类,并采用ARI和Silhouette系数等两种聚类质量方法对聚类效果进行评价,验证聚类结果的真实性和可靠性。最终的实验结果也证实了K-means算法在处理此类数据时具有相对稳定的效果。如果样本量能够不断增加,特征点提取并可以形成多维矩阵,则K-means算法会取得更好的效果。
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刘刚;
王银龙;
王元银;
胡露露
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摘要:
Objective To investigate the difference of bonding strength and residue of binder between two kinds of orthodontic adhesive. Methods 40 orthodontic Maxillary first premolars which needed extracting were collected and randomly divided into 2 groups, group A: light-cure resin binder group, group B: light-cure resin-reinforced glass-ionomer group. The shear strength of each bracket was measured by universal testing machine. The residual index and damage of the enamel surface were observed under microscope. Results The shear strength of group A was (12.30 ± 2.55) MPa, which was significantly higher than that of group B (9.13 ± 1.18) MPa, the difference was statistically significant(t=5.049,P=0.000). The residual rate of adhesive in group A was higher than that in group B(P=0.013). Conclusion While removing bracket, the two kinds of binder did not cause the damage of enamel surface, the shear bond strength of light-cured resin binder was higher than that of light-cure resin-reinforced glass-ionomer, but light-cured resin binder residue on the enamel surface was more after removing the brackets.%目的:探究两种正畸托槽粘接剂粘接强度及粘接剂残留量的差异.方法:收集40颗正畸需要拔除的上颌第一前磨牙,随机均分为2组,A组:光固化树脂粘接剂组;B组:光固化树脂加强型玻璃离子组.用万能试验机检测各组托槽脱离牙面时的抗剪切强度(SBS),并在显微镜下观察釉质表面粘接剂残留指数(ARI)及破坏情况.结果:A组的抗剪切强度为(12.30±2.55)MPa显著高于B组的(9.13±1.18)MPa,差异有统计学意义(t=5.049,P=0.000).A组粘接剂残留率大于B组,差异有统计学意义(P=0.013).结论:去托槽时两种粘接剂均不会造成釉质表面的破坏,光固化树脂粘接剂的粘接强度比光固化树脂加强型玻璃离子高,但去除托槽后光固化树脂粘接剂残留在釉质表面的量更多.
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Schun T. Uechi;
Hiroshi Uechi
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摘要:
The phenomenological equations of motion for the international roughness index (IRI) have been reviewed and discussed in terms of Lagrangian method in physics. The current paper proposes a practical, two-dimensional model for studying essentially three-dimensional, vibrating,?and?mechanical systems (vehicles). The purpose is to provide a new profiling method for IRI, which is practical in computations and compatible with traditional profiling for roughness of a road-surface. The modern technology employs elaborated sensors such as gyro sensor, Global Positioning System (GPS), magnetometer sensor,?and?accelerometer to measure high-speed longitudinal motions, resulting in time series of big-data expressed as compressed longitudinal spikes. The time series of longitudinal spikes obtained from high-speed longitudinal motions are traditionally considered as a background noise for constructing a profile. The conventional IRI is calculated from big-data of the road profile by employing statistical method, but the Lagrangian model dynamically determines the road profile. The useful concept and relation among the road-roughness function?, associated roughness index (ARI), acceleration and position are introduced and examined in the present paper. The associated roughness index (ARI) defined by the current dynamical approach is examined by applying virtual simulations which represent roughness of a road-surface. The current theoretical model supports and compensates information of interpreting a profile of IRI and elucidates physical meanings for the roughness index of a road-surface.
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朱华东
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摘要:
近日,中国石油西南油气田公司天然气研究院(以下简称"天研院")与美国ARI公司(Atmosphere recovery Inc.)就激光拉曼气体分析技术进行了技术交流。交流会上,ARI公司总裁对其研发的激光拉曼气体分析仪技术原理、应用现状、未来发展远景作了专题介绍。双方就激光拉曼光谱气体分析技术现状和应用情况,特别是激光拉曼技术在天然气检测中的应用及相关技术问题进行了深入的探讨。
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柳杨;
韩翔
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摘要:
目的 比较3M Transbond MIP处理液+3M Transbond PLUS变色光固化粘结剂与GC Ortho LC光固化树脂加强型玻璃离子2种粘结体系的粘结强度.方法 收集因正畸治疗而拔除的上颌前磨牙80颗,按照随机化原则分成8组,每组10颗.将2种粘结体系分别在干燥、水分污染、唾液污染和血液污染的条件下完成托槽粘结,用电子万能试验机测试剪切强度,并在显微镜下用ARI指数评价各组牙齿表面残余的粘结剂.结果 在剪切强度测试中,第1组与第5组比较,第2组与第6组比较,第3组与第7组比较,P>0.05,均无统计学差异;第4组与第8组比较,P<0.01,有统计学差异.ARI评分结果提示两者在干燥、水分污染及唾液污染环境下的ARI平均分值无统计学差异,但在血液污染的条件下,GC Ortho LC的ARI值明显降低.结论 3M Transbond MIP处理液+3M Transbond PLUS变色光固化粘结剂与GC Ortho LC光固化树脂加强型玻璃离子在干燥、水分污染及唾液污染的环境下,粘结强度无明显差异,在血液污染的条件下,推荐使用3M Transbond MIP粘结体系.
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