ultrasonic相关论文
In this paper,a new type of micro droplet generation system is proposed.It is composed of the drive component(the linear......
[Objective]To optimize the ultrasonic technology extraction of polysaccharides from RHIZOMA PHRAGMITIS. [Method]The effe......
Under the condition of ultrasonic wave heating,the ground oil sand from Daqing oilfeld was preprocessed with compound mo......
In this article, a new type of Cu-Ti3SiC2 composite powder prepared using the electroless plating technique was introduc......
目的 分析甲状腺肿块的二维声像图特点及多普勒检查中的血流峰值变化,探讨高频超声对甲状腺肿块的良恶性诊断价值.方法 收集80例病......
目的评价不同医师在附件肿块声像图特征描述语及分类方面的一致性。方法两位医师在不知病史及病理的情况下,分别对120例病例的声像......
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目的观察基层医院行白内障晶状体超声乳化吸出术联合人工晶体植入术治疗原发性急性闭角型青光眼的效果。方法回顾性研究。晶状体超......
目的研究术前前房深度对晶状体超声乳化术角膜内皮细胞丢失的影响。方法根据前房深度将老年性白内障患者分为3组：Ⅰ组，前房深度为1.5......
目的比较眼球挫伤所致晶状体脱位于玻璃体的两种手术方法的效果。方法眼球挫伤所致晶状体脱位于玻璃体的53例(53眼)，随机分成两组：A......
目的评价OASIS型内置式虹膜扩张器在小瞳孔白内障手术中临床应用的效果。方法小瞳孔白内障晶状体超声乳化联合人工晶体植入术64例(......
目的评估硅油眼取硅油术后残留硅油珠患者行晶状体后囊切开取出硅油珠的效果。方法回顾性研究。连续性纳入2013年8月至2019年4月于......
[Objective] To optimize the extraction process of polysaccharide extracted with ultrasonic-microwave synergetic extracti......
[Objective] To discuss the microwave extraction technology of paeoniflorin and baicalin from RADIX PAEONIAE RUBRA couple......
This article reports a screw-driven polyhedron linear ultrasonic motor(USM) of nut-type.It is comprised of a stator,whic......
Preparation and characterization of Y_3Al_5O_(12):Ln(Ln=Eu,Ce) phosphor powders by ultrasonic atomiz
A novel technique for YAG:Ln(Ln=Eu,Ce) phosphor powder synthesis with a nanocrystalline structure was developed.Nanocrys......
Analytical model of cutting force in axial ultrasonic vibration-assisted milling in-situ TiB2/7050Al
Ultrasonic vibration-assisted milling has been widely applied in machining the difficultto-cut materials owing to the re......
A compound machine tool was designed, which combined rotary ultrasonic assisted grinding, electrical discharge machining......
随着精密与超精密加工技术的不断发展和成熟,将振动辅助切削技术应用到精密与超精密加工中去已成为发展的一个必然趋势。结合国内......
Fabrication of robust aluminum–carbon nanotube composites using ultrasonic assembly and rolling proc
This study introduced a novel fabrication of aluminum–carbon nanotube (CNT) composites by employing bulk acoustic waves......
Generation of alum sludge(AS)at drinking water treatment plants represents an environ-mental liability and adds to the c......
The aim of this study is to investigate the performance and reliability of urethral valve driven by ultrasonic-vaporized......
The ultrasonic (US) wave detection and an acoustic emission (AE) linear location system are proposed, which employ fiber......
A kind of piezoresistive ultrasonic sensor based on MEMS is proposed,which is composed of a membrane and two side beams.......
The feasibility of using ultrasound to enhance the performance of de-sulphurization and de-ashing during slime flotation......
The resources of refractory gold ores are abundant, and their effective treatment can bring good economic benefits. This......
近年来,超声波辅助提取已成为天然产物分离中一种有效的方法.本文研究了利用超声波辅助提取技术从红松仁中提取红松仁油的工艺条件......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
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通过ANSYS有限元数值模拟和试验相结合,研究了超声波对BT20钛合金激光沉积修复过程的作用。结果表明,超声波振幅为0.2~0.55μm时,......
结合激光加热辅助切削和超声振动切削提出了激光超声复合切削加工工艺。采用PCBN刀具对YG10硬质合金进行普通切削、超声振动切削、......
超声波检测液体流量已经逐渐应用于生活中,但是存在测量精度不高的问题.本文就影响系统测量精度的因素展开了研究.首先介绍了时差......
The volume expansion of SU-8 resist brings serious dimensional errors to electroformed structures. Two approaches have b......
以精制的山桐子油为原料,固体碱CaO-ZrO为催化剂,在超声波辅助下制备生物柴油。通过单因素实验探讨催化剂用量、醇油物质的量之比......
The effect of ultrasonic cavitations on the activity of vanadium catalysts at low temperatures for the oxidation of sulf......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
An electroslag furnace with ultrasonic vibration introduced by a mold copper plate was designed. The effects of ultrason......
为探索高压静电场与功率超声波复合作用的阻垢效果及机理,自制复合阻垢处理器进行了循环冷却水的动态模拟阻垢实验.通过高压静电场......
采用自主设计并制造的机械转盘剩余污泥破解装置对污泥进行破解处理，并联合超声技术以提升破解效果，考察不同运行条件对污泥破解效果......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
The surface silanization was carried out on ultrasonic micro-arc oxidation(UMAO) coatings on pure magnesium using KH550 ......
本文通过对荣华二采区10...
经阴道超声检查操作简便、直观性强，结合穿刺、尿HCG测定，临床上可获得准确的诊断信息，是目前诊断早期异位妊娠的最好的途径。输卵管......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
以茂名产黄橄榄为原料，采用超声波法辅助萃取橄榄浸膏，考察了温度、时间、超声波功率对萃取效果的影响，并在单因素的基础上采用三因素......
Drilling fluid is a common flushing medium used in pile foundation, geological drilling and petroleum drilling. Study on......
介绍灵巧的两维和三维柔性相控阵换能器,用于检测几何形状复杂的焊接结构中裂纹类面状缺陷的方法特征和优势。新的实时功能,能重建......
目的 探讨超声引导下经皮肝穿刺胆道引流术(PTCD)在梗阻性黄疸应用中的效果及相应的护理措施.方法 在超声引导下对56例梗阻性黄疸......
目的研究下颌下腺导管结石的超声影像学特点。方法应用彩色多普勒超声对56例下颌下腺导管结石患者进行检查，得到下颌下腺导管和结石......
目的：探讨宫腔镜与超声波在诊断子宫内膜息肉上的价值，为子宫内膜息肉的诊断提供参考依据。方法：调查2004年12月至2010年12月在广州某......
试验以直接超声方式,在喷射电沉积装置的基础上加载超声设备,分别在20℃和50℃两种镀液温度下在A3钢基体上制备了加载超声和不加载......
