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Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1211-1223 doi: 10.1007/s11705-022-2145-3

Abstract: >–CeO2 composite oxide catalyst was successfully prepared through ultrasound-assisted co-precipitation

Keywords： Co3O4–CeO2 composite oxides     cyclohexanone     cyclohexanol     ultrasonic-assistedco-precipitation     selective oxidation     solvent-free    

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density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: This study is the first to propose an in-situ density measurement method using ultrasonic technologyThe ultrasonic velocity is obtained from the time-domain signals, and the acoustic impedance is computed

Keywords： ultrasonic measurement     melt density     in-situ measurement     injection molding    

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Linear ultrasonic motor using quadrate plate transducer

Jiamei JIN, Chunsheng ZHAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 88-91 doi: 10.1007/s11465-009-0016-y

Abstract: A linear ultrasonic motor using a quadrate plate transducer was developed for precision positioning.

Keywords： ultrasonic motor     quadrate plate     coincident frequency     alternant contact    

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Postprocessor development for ultrasonic cutting of honeycomb core curved surface with a straight blade

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0729-8

Abstract: minimization algorithm and spindle rotation algorithm were integrated and compiled, and the straight blade ultrasonicTherefore, the postprocessor developed in this paper can be well adapted to the honeycomb core ultrasonic

Keywords： honeycomb core     straight blade     ultrasonic cutting     tool pose     postprocessor    

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Vibration characteristics and machining performance of a novel perforated ultrasonic vibration platform

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0730-2

Abstract: Ultrasonic vibration-assisted grinding (UVAG) is an advanced hybrid process for the precision machiningIn this work, a novel perforated ultrasonic vibration platform resonator was developed for UVAG.element method, and the vibration tests show a high degree of consistency for developing the perforated ultrasonicThe employment of ultrasonic vibration reduces the grinding force by 36% at most, thereby decreasing

Keywords： ultrasonic vibration-assisted grinding     perforated ultrasonic vibration platform     vibration characteristics    

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Design of ultrasonic elliptical vibration cutting system for tungsten heavy alloy

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0715-1

Abstract: In this study, a high-performance ultrasonic elliptical vibration cutting (UEVC) system is developedThe arrangement and working principle of piezoelectric transducers on the ultrasonic vibrator using theA cutting tool is installed at the end of the ultrasonic vibration unit to output the ultrasonic ellipticalA dual-channel ultrasonic power supply is developed to excite the ultrasonic vibration unit, which makes

Keywords： tungsten heavy alloy     ultrasonic elliptical vibration cutting     Timoshenko’s theory     resonant mode of    

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Modeling radiative effects of haze on summer-time convective precipitation over North China: a case study

Xuying WANG, Bin ZHANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0840-3

Abstract: We modeled the impact of haze radiative effects on precipitation in North China.Convection was the key factor that whether precipitation was enhanced or suppressed.Precipitation was often suppressed where CAPE, RH and updraft velocities were high.The convection was stronger over places with precipitation enhancement over 30 mm.water vapor to rise to a higher level and thus further suppressed precipitation.

Keywords： Haze     Aerosol radiative effects     Convective precipitation    

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Changes in hourly precipitation may explain the sharp reduction of discharge in the middle reach of the

Lin LUO, Zhongjing WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 756-768 doi: 10.1007/s11783-013-0563-7

Abstract: High temporal resolution precipitation (timescales between 1 and 4 h) data from the June to Septemberand significance of monotonic trends, and to find the change points in the mean and variance of the precipitationResults show that although the total amount of precipitation has slightly increased, the average rainfallThe study indicates that changes in hourly precipitation may be responsible for the sharp reduction of

Keywords： precipitation intensity     Mann-Kendall rank statistic     spatial and temporal distribution     climatic change    

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Improving the performances of ultrasonic motors using intermittent contact scheme

Jiamei JIN, Jianhui ZHANG, Fu QIAN, Zhenfeng PAN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 242-246 doi: 10.1007/s11465-010-0016-y

Abstract: Most ultrasonic motors operate in intermittent contact scheme.A novel linear ultrasonic motor using the alternative work of the multi-driving end of a single stator

Keywords： ultrasonic motor     intermittent contact     alternative work    

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Investigation on a cylindrical ultrasonic micromotor

ZHU Hua, CHEN Chao, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 394-398 doi: 10.1007/s11465-007-0068-9

Abstract: Therefore, a cylindrical ultrasonic micromotor with a novel stator is proposed.As this motor is suitable for miniaturization because of its simple structure, another cylindrical ultrasonic

Keywords： coefficient     bending     kHz     suitable     weight    

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Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0717-z

Abstract: A new micro-grinding process called ultrasonic vibration-assisted nanoparticle jet mist cooling (U-NJMCIt combines the advantages of ultrasonic vibration (UV) and nanoparticle jet mist cooling (NJMC).

Keywords： micro-grinding     biological bone     ultrasonic vibration (UV)     nanoparticle jet mist cooling (NJMC)     grinding    

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Effects of inclination angles of disc cutter on machining quality of Nomex honeycomb core in ultrasonic

Yidan WANG, Renke KANG, Yan QIN, Qian MENG, Zhigang DONG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 285-297 doi: 10.1007/s11465-021-0631-9

Abstract: Ultrasonic cutting with a disc cutter is an advanced machining method for the high-quality processingThe machining quality is influenced by ultrasonic cutting parameters, as well as tool orientations, whichIn this work, the inclined ultrasonic cutting process with a disc cutter was analyzed, and cutting experimentsFurthermore, the tearing of the cell wall on the machined surface was observed, and the effects of the ultrasonicExperimental results revealed that ultrasonic vibration can effectively decrease the tearing of the cell

Keywords： Nomex honeycomb core     disc cutter     inclined ultrasonic cutting     machining quality    

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Performance investigation on ultrasonic levitation axial bearing for flywheel storage system

Taijiang PENG, Zhigang YANG, Junwu KAN, Fengjun TIAN, Xiaohong CHE,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 415-419 doi: 10.1007/s11465-009-0051-8

Abstract: Based on the performance research of ultrasonic levitation technology, a novel noncontact bearing calledultrasonic bearing is presented, which consists of a special piezoelectric vibrator supporting the loadThe ultrasonic bearing is highlighted because of its simple structure, strong levitation ability, and

Keywords： ultrasonic bearing     flywheel storage system     piezoelectric ceramic     piezoelectric vibrator    

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Analysis and control of micro-stepping characteristics of ultrasonic motor

Ning CHEN, Jieji ZHENG, Xianliang JIANG, Shixun FAN, Dapeng FAN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 585-599 doi: 10.1007/s11465-019-0577-3

Abstract: Micro-stepping motion of ultrasonic motors satisfies biomedical applications, such as cell operation

Keywords： ultrasonic motor     stepping characteristics     pulse number control     synchronous acquisition system     precise    

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Evaluation of precipitation behavior of zirconium molybdate hydrate

Liang ZHANG, Masayuki TAKEUCHI, Tsutomu KOIZUMI, Izumi HIRASAWA

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 65-71 doi: 10.1007/s11705-013-1314-9

Abstract: In the dissolution step of spent nuclear fuel, there is a world-concern problem that zirconium molybdate hydrate precipitates as a byproduct, and accumulates in some reprocessing equipments. In order to prevent this accumulation, we have developed a new method based on the controlled reaction crystallization of zirconium molybdate hydrate (ZMH) in the reprocessing solution, followed by solid liquid separation. In order to measure the particle size of ZMH, batch crystallization experiments were conducted by varying nitric acid concentration and operating temperature. In result, almost all particle sizes scatter around 1 μm on average, despite the higher concentration of nitric aid and operating temperature, and then small particles grow up as an aggregate sticking to the crystallizer. Moreover, polymorph and color changing were observed by varying the concentration of nitric acid and reaction time. These results suggest that crystal color and adhesiveness are closely related to the particle size of ZMH. And the control of nitric acid concentration and small particle growth would be the useful technique to prevent the ZMH sticking.

Keywords： spent nuclear fuel     zirconium molybdate hydrate     cleaning method     accumulation    

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Title Author Date Type Operation

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Journal Article

density measurement for plastic injection molding via ultrasonic technology

Journal Article

Linear ultrasonic motor using quadrate plate transducer

Jiamei JIN, Chunsheng ZHAO

Journal Article

Postprocessor development for ultrasonic cutting of honeycomb core curved surface with a straight blade

Journal Article

Vibration characteristics and machining performance of a novel perforated ultrasonic vibration platform

Journal Article

Design of ultrasonic elliptical vibration cutting system for tungsten heavy alloy

Journal Article

Modeling radiative effects of haze on summer-time convective precipitation over North China: a case study

Xuying WANG, Bin ZHANG

Journal Article

Changes in hourly precipitation may explain the sharp reduction of discharge in the middle reach of the

Lin LUO, Zhongjing WANG

Journal Article

Improving the performances of ultrasonic motors using intermittent contact scheme

Jiamei JIN, Jianhui ZHANG, Fu QIAN, Zhenfeng PAN,

Journal Article

Investigation on a cylindrical ultrasonic micromotor

ZHU Hua, CHEN Chao, ZHAO Chunsheng

Journal Article

Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant

Journal Article

Effects of inclination angles of disc cutter on machining quality of Nomex honeycomb core in ultrasonic

Yidan WANG, Renke KANG, Yan QIN, Qian MENG, Zhigang DONG

Journal Article

Performance investigation on ultrasonic levitation axial bearing for flywheel storage system

Taijiang PENG, Zhigang YANG, Junwu KAN, Fengjun TIAN, Xiaohong CHE,

Journal Article

Analysis and control of micro-stepping characteristics of ultrasonic motor

Ning CHEN, Jieji ZHENG, Xianliang JIANG, Shixun FAN, Dapeng FAN

Journal Article

Evaluation of precipitation behavior of zirconium molybdate hydrate

Liang ZHANG, Masayuki TAKEUCHI, Tsutomu KOIZUMI, Izumi HIRASAWA

Journal Article