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Design considerations for electromagnetic couplers in contactless power transmission systems for deep-sea applications

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第10期11卷 824-834页

作者： Ze-song li De-jun li lin lin Ying CHEN State Key Lab of Fluid Power Transmission and Control Zhejiang University Hangzhou 310027. China

In underwater applications of contactless power transmission(CLPT) systems,high pressure and noncoaxial operations will change the parameters of electromagnetic(EM) *** a result,the system will divert from its optimum *** a reluctance modeling method,we investigated the gap effects on the EM coupler in deep-sea *** and measurements were performed to analyze the influence of high pressure and noncoaxial alignments on the *** was shown that it is useful to set a relatively large gap between cores to reduce the influence of *** were carried out to verify the transferring capacity of the designed coupler and system for a fixed *** results showed that an EM coupler with a large gap can serve a stable and efficient power transmission for the CLPT *** designed system can transfer more than 400 W electrical power with a 2-mm gap in the EM coupler,and the efficiency was up to 90% coaxially and 87% non-coaxially in 40 MPa salt ***,a mechanical layout of a 400 W EM coupler for the underwater application in 4000-m deep sea was proposed.

关键词： Contactless power transmission(CLPT) EM coupler Deep sea Gap effects

An efficient synthesis of 3-(guaiazulene-1-yl)succinimides by addition of guaiazulene to maleimides

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Chinese Chemical Letters 2011年第7期22卷 789-792页

作者： Dao lin Wang Shao Fei li Wei li Yuan Feng li li Nan lin Key Laboratory of Synthesis & Application of Functional Compound College of Chemistry & Chemical Engineering Bohai University Jinzhou 121001 China

A facile, efficient synthesis of 3-（guaiazulen-l-yl）succinimides was developed by Michael-type addition of guaiazulene to maleimides in the presence of p-toluenesulfonic acid under mild reaction conditions.

关键词： Guaiazulene Succinimidcs Michael-type addition p-Toluenesulfonic acid

Monoterpene and tetrahydronaphthene derivatives from Senecio argunensis

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Chinese Chemical Letters 2009年第5期20卷 598-600页

作者： Chao Feng Zhang Ning li lin li Mian Zhang Research Department of Pharmacognosy China Pharmaceutical University Nanjing 210038 China

Two new compounds, senarguines A and B, were isolated from Senecio argunensis. They were respectively identified as （Z）-3- ethylidene-9-hydroxyl-9-methyl-6,7-dioxaspiro [4.4] nonane-5,8-dione （1） and 3,6,6-trimeth... 详细信息

关键词： Compositae Senecio argunensis Senarguine A Senarguine B

Aircraft noise exposure affects rat behavior,plasma norepinephrine levels,and cell morphology of the temporal lobe

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第12期12卷 969-975页

作者： Guo-qing DI Bing ZHOU Zheng-guang li Qi-li lin Institute for Environmental Pollution Control Technology Zhejiang University Hangzhou 310058 China

In order to investigate the physiological effects of airport noise exposure on organisms,in this study,we exposed Sprague-Dawley rats in soundproof chambers to previously recorded aircraft-related noise for 65 *** comparison,we also used unexposed control *** was arranged according to aircraft flight schedules and was adjusted to its weighted equivalent continuous perceived noise levels(LWECPN) of 75 and 80 dB for the two experimental *** examined rat behaviors through an open field test and measured the concentrations of plasma norepinephrine(NE) by high performance liquid chromatography-fluorimetric detection(HPLC-FLD).We also examined the morphologies of neurons and synapses in the temporal lobe by transmission electron microscopy(TEM).Our results showed that rats exposed to airport noise of 80 dB had significantly lower line crossing number(P<0.05) and significantly longer center area duration(P<0.05) than control *** 29 d of airport noise exposure,the concentration of plasma NE of exposed rats was significantly higher than that of the control group(P<0.05).We also determined that the neuron and synapsis of the temporal lobe of rats showed signs of damage after aircraft noise of 80 dB exposure for 65 *** conclusion,exposing rats to long-term aircraft noise affects their behaviors,plasma NE levels,and cell morphology of the temporal lobe.

关键词： Aircraft noise Open field test Norepinephrine Neuron Synapse

6-O-(Hydroxypropyltrimethylammonia)-β-cyclodextrin with Low Degree of Substitution: Convenient Preparation and its Application as a Chiral Selector in Capillary Electrophoresis

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Chinese Chemical Letters 2006年第3期17卷 407-410页

作者： Ming Gang ZHAO Ai You HAO Jian li Xiu li lin School of Chemistry and Chemical Engineering Shandong University Jinan 250100

A cationic cyclodextrin derivative 6-O-（hydroxypropyltrimethylammonia）-β-cyclodextrin （GTA-β-CD） with low degree of substitution was prepared through a convenient method in solid phase. The product could be used as a valuable chiral selector in the capillary electrophoresis （CE） separation of some acidic drug enantiomers such as naproxen, ofloxacin, ibuprofen and warfarin.

关键词： 6-O-(Hydroxypropyltrimethylammonia)-β-cyclodextrin capillary electrophoresis chiral selector.

Progress and expectation of stem cell therapy for diabetic wound healing

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World Journal of Clinical Cases 2023年第3期11卷 506-513页

作者： Zhen-Han Xu Meng-Hui Ma Yan-Qing li li-lin li Gui-Hua liu Reproductive Medicine Center The Sixth Affiliated HospitalSun Yat-Sen UniversityGuangzhou 510610Guangdong ProvinceChina

Impaired wound healing presents great health risks to ***,the current clinical successfully found out meaningful method to repair wound tissue,and stem cell therapy could be an effective method for diabetic wound healing with its ability to accelerate wound closure and avoid *** minireview aims at introducing stem cell therapy for facilitating tissue repair in diabetic wounds,discussing the possible therapeutic mechanism and clinical application status and problems.

关键词： Stem cell Diabetic wound Wound healing Immunoregulation

Theoretical verification of intermolecular hydrogen bond induced thermally activated delayed fluorescence in SOBF-OMe

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Chinese Physics B 2021年第12期30卷 378-384页

作者： Mu-Zhen li Fei-Yan li Qun Zhang Kai Zhang Yu-Zhi Song Jian-Zhong Fan Chuan-Kui Wang li-li lin Shandong Key Laboratory of Medical Physics and Image Processing&Shandong Provincial Engineering and Technical Center of light Manipulations School of Physics and ElectronicsShandong Normal UniversityJinan 250358China

Thermally activated delayed fluorescence(TADF)molecules have attracted great attention as high efficient luminescent *** of TADF molecules possess small energy gap between the first singlet excited state(S_(1))and the first triplet excited state(T_(1))to favor the up-conversion from T_(1)to S_(1).In this paper,a new TADF generation mechanism is revealed based on theoretical *** systematic study of the light-emitting properties of SOBF-OMe in both toluene and in aggregation state,we find that the single SOBF-OMe could not realize TADF emission due to large energy gap as well as small up-conversion rates between S_(1)and T_(1).Through analysis of dimers,we find that dimers with intermolecular hydrogen bond(H-bond)are responsible for the generation of TADF,since smaller energy gap between S_(1)and T_(1)is found and the emission wavelength is in good agreement with experimental *** emission properties of SOBF-H are also studied for comparison,which reflect the important role of *** theoretical results agree ith experimental results well and confirm the mechanism of H-bond induced TADF.

关键词： organic light-emitting diodes thermally activated delayed fluorescence intermolecular hydrogen bond decay rates

Effect of Polynomial Expressed Distribution Dust Particles for Unmagnetized Two-Ion-Temperature Dusty Plasma

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Communications in Theoretical Physics 2009年第8期52卷 346-350页

作者： HE Guang-Jun li Xiao-li lin Mai-Mai SHI Yu-Ren DUAN Wen-Shan Department of Physics Northwest Normal University Lanzhou 730070 China

linear dispersion relation for linear wave and a Kadomtsev-Petviashvili (KP) equation for nonlinearwave are given for the unmagnetized two-ion-temperature cold dusty plasma with many different dust grain *** numerical results of variations of linear dispersion with respect to the different dust size distribution are ***,how the amplitude,width,and propagation velocity of solitary wave vary vs different dust size distribution isalso studied numerically in this paper.

关键词： polynomial expressed dust size distribution linear dispersion relation Kadomtsev-Petviashvili (KP) equation

Metal-film-assisted ultra-clean transfer of single-walled carbon nanotubes

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Nano Research 2014年第7期7卷 981-989页

作者： Yujun He Dongqi li Tianyi li Xiaoyang lin Jin Zhang Yang Wei Peng liu lina Zhang Jiaping Wang Qunqing li Shoushan Fan Kaili Jiang State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics & Tsinghua-Foxconn Nanotechnology ResearchCenter Tsinghua University Beijing 100084 China

Transfer printing of nanomaterials onto target substrates has been widely used in the fabrication of nanodevices, but it remains a challenge to fully avoid contamination introduced in the transfer process. Here we report a metal-film- assisted method to realize an ultra-clean transfer of single-walled carbon nanotubes （SWCNTs） mediated by poly（methyl methacrylate）（PMMA）. The amount of PMMA residue can be greatly reduced due to its strong physical adhesion to the metal film, leading to ultra-clean surfaces of both the SWCNTs and the substrates. This metal-film-assisted transfer method is efficient, nondestructive, and scalable. It is also suitable for the transfer of graphene and other nanostructures. Furthermore, the relatively low temperature employed allows this technique to be compatible with nanomaterial-based flexible electronics.

关键词： metal-film-assisted single-walled carbonnanotube transfer flexible substrate Schottky barrier