http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Minghua Wu (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
Deyou Yu,Minghua Wu,Junxiong Lin,Jintao Zhu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.9
Conventional cotton bleaching is highly energy-intensive, water-dependent, and textile-damaging. The technologies currently used to achieve low-temperature bleaching always include a conflict between effectiveness and cost. This study represents an economically efficient process for cotton bleaching with H2O2 at low temperature. A novel system that couples Cu2+ with HCO3 −, has been developed to activate cotton bleaching. Factors that influence the bleaching performance were investigated, including the bleaching temperature and initial concentrations of the components (H2O2, NaHCO3 and Cu2+). The experimental results indicated that the Cu2+-HCO3 −/H2O2 system had a lower operating cost and higher bleaching efficiency than conventional and TAED-activated systems. Additionally, the bleaching bath exhibited excellent reusability, further strengthening its feasibility for industrial applications. The results of HO• scavenging and Cu2+ monitoring experiments implied that the bleaching active species might be the Cu(III) species rather than HO•. This novel system provides a simple, effective, and cost-efficient method for practical bleaching.
-
Lu Zhang,Li Tian,Minghua Wu 한국섬유공학회 2020 Fibers and polymers Vol.21 No.2
In order to improve the crease resistant property of silk fabric and reduce the tensile strength damage of finished silk fabric, the isocyanate terminated polysiloxane (ITPSI) was prepared with hydrogen terminated polysiloxane (HTPSI) and methylallyl alcohol as raw materials, diphenylmethane diisocyanate (MDI) as functional modifier, and it was used as crease resistant finishing agent for silk fabric. The effect factors of crease resistant properties of finished silk fabric were studied and the crease resistant properties of finished silk fabric were evaluated. The results showed that when the molar mass of HTPSI was 1914 g/mol, the finished silk fabric obtained the best crease resistant property. The optimal conditions of the finishing process was that the dosage of ITPSI crease resistant finishing agent was 60 g/l, the baking temperature was 150 oC, and the baking time was 3 min. Under these finishing conditions, the dry/wet crease recovery angles (DCRA/WCRA) of finished silk fabric were 302.6 o and 229 o, respectively, both the crease resistant property and the washability were good. There is no apparent effects on tensile strength and whitenesss of finished silk fabric by this treatment. Compared with epoxy modified polysiloxane (EMPSI) crease resistant finishing agent on the market, the silk fabric finished by ITPSI crease resistant finishing agent had better crease resistant effect and less tensile strength damage.
-
Lu Zhang,Qingquan Zhou,Qipeng Zhang,Minghua Wu 한국섬유공학회 2021 Fibers and polymers Vol.22 No.2
To further improve the color yield and color fastness of disperse dyes (DDs) in washing-free printing,fluorosilicone-modified polyacrylate (FSMPA) was prepared as a new washing-free printing binder. The structure, thermalbehaviors, surface characteristics, and washing-free printing properties of FSMPA were intensively investigated. Themigration-diffusion-fixation mechanisms of DDs from a polymer binder film to PET were tentatively explored. The resultsshowed that when the molar ratio of 1,3,5-tris(3,3,3-trifluoropropyl) methylcyclotrisiloxane (D3F) to octamethylcyclotetrasiloxane(D4) was 1:10 in the preparation of the modifier double-terminated vinyl polyfluoroalkyl siloxane (DVFS) and the dose ofDVFS in the preparation of FSMPA was 9 %, the printed polyester fabric exhibited excellent washing-free printingproperties. Compared with polyacrylate (PA) and silicon-modified polyacrylate (SMPA), FSMPA has better color yield andcolor fastness. The glass transition temperature of FSMPA was decreased, the enrichment of fluorosilicone chains on thesurface of FSMPA film was facilitated, and the hydrophobicity of FSMPA was improved. Thus, the difference in solubilityparameters between the DDs and polymer binder film was increased, and the migration of the DDs from the FSMPA film tothe PET substrate was promoted.
-
( Chao Deng ),( Kaibin Huang ),( Yik-chung Wu ),( Minghua Xia ) 한국인터넷정보학회 2017 KSII Transactions on Internet and Information Syst Vol.11 No.10
This paper studies the radio frequency to direct current (RF-DC) conversion efficiency of rectennas applicable to wireless power transfer systems, where multiple receive antennas are arranged in serial, parallel or cascaded form. To begin with, a 2.45 GHz dual-diode rectifier is designed and its equivalent linear model is applied to analyze its output voltage and current. Then, using Advanced Design System (ADS), it is shown that the rectifying efficiency is as large as 66.2% in case the input power is 15.4 dBm. On the other hand, to boost the DC output, three composite rectennas are designed by inter-connecting two dual-diode rectifiers in serial, parallel and cascade forms; and their output voltage and current are investigated using their respective equivalent linear models. Simulation and experimental results demonstrate that all composite rectennas have almost the same RF-DC conversion efficiency as the dual-diode rectifier, yet the output of voltage or current can be significantly increased; in particular, the cascade rectenna obtains the highest rectifying efficiency.
-
A Fuzzy Cerebellar Model Articulation Controller Based Visual Servo System for Robot
Wei Sun,Cong Wang,Shengnan Liu,Baoqiang Wu,Minghua Ouyang 제어·로봇·시스템학회 2012 International Journal of Control, Automation, and Vol.10 No.2
This paper presents a novel online learning visual servo controller integrating the FCMAC with proportion controller for the control of position of manipulator end-effector. Since the FCMAC has good learning capability and fast learning speed, and can save much computer memory space by fuzzy processing of input space division and memory unit activation, it is used to develop an adaptive control law by learning the relationship between the image feature errors and manipulator input, and the aim of online learning of the FCMAC is to minimize the output of proportion controller. Further-more, the FCMAC has no need for models of robot manipulator and image feature extraction, so that the capability of proposed controller for tasks under uncertain environment can be improved. Finally, the proposed controller is proved to be effective by the experiment, and compared with BP neural net-work.
ScienceON
KISS연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
