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 : Mengqian, Hou (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
Practical finite-time stability of homogeneous positive nonlinear systems
Mengqian Liang,Yazhou Tian 제어로봇시스템학회 2022 제어로봇시스템학회 국제학술대회 논문집 Vol.2022 No.11
The issue of practical finite-time stability (PFTS) for homogeneous positive systems (HPSs) with exogenous disturbance is investigated in this article. Based on max-separable Lyapunov function (MSLF) method, we get a sufficient condition for PFTS for the considered system. What’s more, we obtain a finite settling-time depending on the proof by contradiction. Our results are more specific and easily obtained in comparison to the existing results, and we generalize the results of HPSs to the time-varying nonlinear systems via a technique of comparison. Finally, the feasibility of the adopted technique is specified by a suitable example.
-
Sports impact on the nanomedicine absorption in drug delivery
Mengqian Hou,Xin Fang,Teng Nan Techno-Press 2023 Advances in nano research Vol.14 No.2
Physical activities enhance blood flow in the vessels, which may increase the quality of medicine delivery. The emergence of revolutionary technologies such as nanoscience, made it possible to treat the incurable illnesses such as cancer. This paper investigates the impact of sport and physical exercises on the quality and quantity of the drug-delivery based on the mathematical modeling of a nanomotor made by nanotubes carrying the nano-drug capsules. Accordingly, the mathematical equations of rotating nanomotor are generated by considering the both of higher-order beam model and nonlocal strain gradient model, as a comprehensive continuum theory. Next, through the generalized differential quadrature together with Newmark-beta methods, the differential relations are discretized and solved. Finally, the impact of varied parameters on the dynamical behavior of the nanomotor is examined in detail. The outcomes of this investigation can be useful to achieve an excellent design of nanomotors carrying nano-drugs.
-
Sport impact on the strength of the nanoscale protein tissues under the thermal condition
Xin, Fang,Mengqian, Hou Techno-Press 2022 Advances in nano research Vol.13 No.6
The stability of protein tissues and protein fibers in the human muscle is investigated in the presented paper. The protein fibers are modeled via tube structures embedded in others proteins fibers like the elastic substrate. Physical sport and physical exercise play an important role in the stability of synthesis and strength of the protein tissues. In physical exercise, the temperature of the body increases, and this temperature change impacts the stability of the protein tissues, which is the aim of the current study. The mathematical simulation of the protein tissues is done based on the mechanical sciences, and the protein fibers are modeled via wire structures according to the high-order theory beams. The thermal stress due to the conditions of the sport is applied to the nanoscale protein fibers, then the stability regarding the frequency analysis is investigated. Finally, the impact of temperature change, physical exercise, and small-scale parameters on the stability of the protein tissues are examined in detail.
-
Exponential Stability of Time-varying Switched Impulsive Nonlinear Systems Using Comparison Theorem
Min Fan,Mengqian Liang,Yazhou Tian 제어·로봇·시스템학회 2024 International Journal of Control, Automation, and Vol.22 No.7
This paper focuses on discussing the stability of time-varying switched impulsive nonlinear systems (TVSINSs). To conquer the difficulties induced by time-varying parameters, we firstly put forward comparison theorem associated with a method that doesn’t involve any Lyapunov function and is commonly utilized in positive systems to set up new stability criteria of TVSINSs under the average dwell time (ADT) switching. In comparison with recent results, the derived ones are not only in connection with state delay and impulse delay, but also possess less conservative conditions from the simulation analyses. In conclusion, the feasibility and superiority of the adopted approaches are testified by two appropriate examples.
-
‘‘Anode-free” Zn/LiFePO4 aqueous batteries boosted by hybrid electrolyte
Jingying Duan,Luofu Min,Mengqian Wu,Ting Yang,Mingming Chen,Chengyang Wang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.114 No.-
Aqueous rechargeable batteries with Zn as anode directly have become prospective alternatives to conventionallithium-ion batteries. However, the growth of zinc dendrites restricts the practical applicationof Zn anode greatly. In addition, the use of thick zinc foil as anode also increases the total weight of thebattery and impacts the whole energy density. Herein, a kind of ‘‘anode-free” Zn/LiFePO4 battery (zeroexcessZn) is designed to solve such problems, and corresponding electrolyte is optimized to ensurethe electrochemical performance. As a result, ethylene glycol (EG) is added to the aqueous electrolytewith 1.5 M Zn(CF3SO3)2 and 1.5 M LiCF3SO3 as solutes, which not only improves the stability of the electrolyte,but also inhibits the growth of zinc dendrites. And the Zn/Cu batteries with 70 vol% EG/H2Ohybrid electrolyte show highly reversible Zn plating/stripping process, in which the average coulombicefficiency (ACE) is as high as 99.77 % at a current density of 1 mA cm2. In order to better adapt to the‘‘anode-free” Zn/LiFePO4 battery system, the ratio of Zn2+ to Li+ ions in this electrolyte is further optimized,and it’s found that the battery with 2 M Zn(CF3SO3)2 + 1 M LiCF3SO3-70 vol% EG/H2O electrolyteshows the most excellent electrochemical stability, in which the capacity retention rate is 75.2 % after100 cycles at a current density of 1 mA cm2. Our work makes it possible for the application of aqueous‘‘anode-free” batteries.
-
Cloning and characterization of hemerythrin gene from Sipuncula Phascolosoma esculenta
Yan Liu,Chenghua Li,Xiurong Su,Mengqian Wang,Yanyan Li,Ye Li,Taiwu Li 한국유전학회 2013 Genes & Genomics Vol.35 No.1
Hemerythrin is a non-heme respiratory protein involved in oxygen storage and transport in invertebrates. In the present study, the hemerythrin cDNA was cloned from Phascolosoma esculenta (denoted as PeHr) by PCR and rapid amplification of cDNA ends approaches. The full-length PeHr consisted of 770 bp containing of a 50-terminal untranslated region (UTR) of 83 bp, a 30-terminal UTR of 327 bp, and a coding domain sequence of 360 bp encoding a polypeptide of 120 amino acids with estimated molecular mass of 13.6 kDa and theoretical isoelectric point of 5.78. The expression profiles of PeHr were evaluated by real-time RT-PCR under blood loss stress. The expression level of PeHr was significantly up-regulated from 45 to 48 h, then slightly recovered to its original level. The coding sequence of the PeHr was cloned and expressed in Escherichia coli BL21 (DE3) for antibodies preparation. Western blotting analysis conformed that the generated antibodies could specifically identify not only recombinant product, but also native protein from the total protein extraction. Our results indicated that PeHr might be involved into haemocytes regeneration, and its function roles should be further investigated by the generated antibodies.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
