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Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF
《结构与土木工程前沿(英文)》 2019年 第13卷 第4期 页码 821-830 doi: 10.1007/s11709-019-0518-6
关键词: mixture method compressive strength nano-silica micro-silica polypropylene fibers
《环境科学与工程前沿(英文)》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1712-2
● Both amorphous and crystalline silicon are completely separated from coal fly ash.
关键词: Coal fly ash Alkali fusion Micro-/meso-porous Si Zeolite MCM-48 Crystalline transformation
Dispersion of “guava-like” silica/polyacrylate nanocomposite particles in polyacrylate matrix
QI Dongming, YANG Lei, WU Minghua, SHAO Jianzhong, BAO Yongzhong
《化学科学与工程前沿(英文)》 2008年 第2卷 第2期 页码 127-134 doi: 10.1007/s11705-008-0033-0
关键词: silica/polyacrylate composite cross-linked network –70 guava-like TEM
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1581-1592 doi: 10.1007/s11705-023-2327-7
关键词: Cu–Al bimetallic oxides mesoporous silica spheres peroxydisulfate bisphenol A
The modification of titanium in mesoporous silica for Co-based Fischer–Tropsch catalysts
《化学科学与工程前沿(英文)》 2022年 第16卷 第8期 页码 1224-1236 doi: 10.1007/s11705-022-2139-1
关键词: Fischer–Tropsch synthesis titanium incorporation mesoporous silica metal-support interactions C5+ selectivity
《化学科学与工程前沿(英文)》 2022年 第16卷 第7期 页码 1101-1113 doi: 10.1007/s11705-021-2095-1
关键词: Janus nanoparticles surfactant double phase inversion self-assembly enhanced oil recovery
Flexible micro flow sensor for micro aerial vehicles
Rong ZHU, Ruiyi QUE, Peng LIU
《机械工程前沿(英文)》 2017年 第12卷 第4期 页码 539-545 doi: 10.1007/s11465-017-0427-0
This article summarizes our studies on micro flow sensors fabricated on a flexible polyimide circuit board by a low-cost hybrid process of thin-film deposition and circuit printing. The micro flow sensor has merits of flexibility, structural simplicity, easy integrability with circuits, and good sensing performance. The sensor, which adheres to an object surface, can detect the surface flow around the object. In our study, we install the fabricated micro flow sensors on micro aerial vehicles (MAVs) to detect the surface flow variation around the aircraft wing and deduce the aerodynamic parameters of the MAVs in flight. Wind tunnel experiments using the sensors integrated with the MAVs are also conducted.
关键词: micro flow sensor flexible sensor surface flow sensing aerodynamic parameter micro aerial vehicle (MAV)
Effects of polyethylenimine on the dispersibility of hollow silica nanoparticles
WEN Lixiong, WANG Qing, ZHENG Tianyuan, CHEN Jianfeng
《化学科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 277-282 doi: 10.1007/s11705-007-0050-4
关键词: dispersion improvement different prepared HSNP relationship agglomeration
ZHANG Liping, ZHU Yi, NI Caihua
《化学科学与工程前沿(英文)》 2008年 第2卷 第3期 页码 242-247 doi: 10.1007/s11705-008-0043-y
关键词: undergoes water-methanol surfactant concentration copolymerization chromatography
《化学科学与工程前沿(英文)》 2022年 第16卷 第8期 页码 1198-1210 doi: 10.1007/s11705-021-2133-z
关键词: solid acid catalyst mesoporous silica sulfonic acid biodiesel esterification oleic acid
Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer
Lili CHEN, Wu ZHOU
《机械工程前沿(英文)》 2013年 第8卷 第2期 页码 146-149 doi: 10.1007/s11465-013-0260-z
To predict more precisely the frequency of force-balanced micro accelerometer with different bias voltages, the effects of bias voltages on error sensitivity of frequency is studied. The resonance frequency of accelerometer under closed loop control is derived according to its operation principle, and its error sensitivity is derived and analyzed under over etching structure according to the characteristics of Deep Reaction Ion Etching (DRIE). Based on the theoretical results, micro accelerometer is fabricated and tested to study the influences of AC bias voltage and DC bias voltage on sensitivity, respectively. Experimental results indicate that the relative errors between test data and theory data are less than 7%, and the fluctuating value of error sensitivity under the range of voltage adjustment is less than 0.01 μm . It is concluded that the error sensitivity with designed parameters of structure, circuit and process error can be used to predict the frequency of accelerometer with no need to consider the influence of bias voltage.
关键词: Micro-Electro-Mechanical Systems (MEMS) micro accelerometer force-balanced micro accelerometer frequency error sensitivity
Numerical simulation of micro scale flowing and boiling
Wen WANG, Rui ZHUAN,
《能源前沿(英文)》 2009年 第3卷 第4期 页码 396-401 doi: 10.1007/s11708-009-0049-2
关键词: volume-of-fluid (VOF) micro channel nucleate boiling bubble dynamics simulation
Preparation and characterization of polyimide/silica/silver composite films
JIANG Lizhong, WU Dezhen, LUO Ning, WU Zhanpeng, MOU Nanxiang
《化学科学与工程前沿(英文)》 2008年 第2卷 第3期 页码 291-295 doi: 10.1007/s11705-008-0059-3
关键词: single-stage self-metallization spectroscopy transmission Polyimide/silica/silver ultraviolet visible
Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers
ZHANG Ruihua, CHEN Haichu
《机械工程前沿(英文)》 2007年 第2卷 第4期 页码 433-438 doi: 10.1007/s11465-007-0074-y
关键词: spherical micro-gripper friction coefficient dynamic frequency
Harun TANYILDIZI, Abdulkadir ŞENGÜR, Yaman AKBULUT, Murat ŞAHİN
《结构与土木工程前沿(英文)》 2020年 第14卷 第6期 页码 1316-1330 doi: 10.1007/s11709-020-0646-z
关键词: concrete high temperature strength properties deep learning stacked auto-encoders LSTM network
标题 作者 时间 类型 操作
Optimizing the compressive strength of concrete containing micro-silica, nano-silica, and polypropylene
Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF
期刊论文
Porous silica synthesis out of coal fly ash with no residue generation and complete silicon separation
期刊论文
Dispersion of “guava-like” silica/polyacrylate nanocomposite particles in polyacrylate matrix
QI Dongming, YANG Lei, WU Minghua, SHAO Jianzhong, BAO Yongzhong
期刊论文
Enhanced activation of persulfate using mesoporous silica spheres augmented Cu–Al bimetallic oxide particles
期刊论文
The construction of pseudo-Janus silica/surfactant assembly and their application to stabilize Pickering
期刊论文
Effects of polyethylenimine on the dispersibility of hollow silica nanoparticles
WEN Lixiong, WANG Qing, ZHENG Tianyuan, CHEN Jianfeng
期刊论文
copolymerization of -isopropylacrylamide with 3-(methacryloxy)propyl trimethoxysilane on ultrafine silica
ZHANG Liping, ZHU Yi, NI Caihua
期刊论文
Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production
期刊论文
Dependence of error sensitivity of frequency on bias voltage in force-balanced micro accelerometer
Lili CHEN, Wu ZHOU
期刊论文
Preparation and characterization of polyimide/silica/silver composite films
JIANG Lizhong, WU Dezhen, LUO Ning, WU Zhanpeng, MOU Nanxiang
期刊论文
Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers
ZHANG Ruihua, CHEN Haichu
期刊论文