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New Facile Synthesis of 2-Aryloxy-5-(2-furfurylidene)- 4H-imidazolin-4-ones

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Chinese Chemical Letters 2002年第10期13卷 942-944页

作者： Ming Wu DING Jing ZHU Su Fang SHI xiao peng liu Institute of Organic Synthesis Central China Normal UniversityWuhan 430079 Department of Chemistry Central China Normal UniversityWuhan 430079 Center of Analysis and Testing Central China Normal UniversityWuhan 430079

Novel 2-aryloxy-5-(2-furfurylidene)-4H-imidazolin-4-ones 6 were synthesized by aza-Wittig reaction of vinyliminophosphorane 4 with phenyl isocyanate and subsequent condensation with Various substituted phenols in the presence of catalytic amount of potassium carbonate. The products are confirmed by H-1 NMR, MS, IR and elementary analysis.

关键词： 4H-imidazolin-4-one aza-Wittig reaction iminophosphorane synthesis

Thermal storage properties of Mg-LaNi using as a solar heat storage material

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Rare Metals 2023年第4期42卷 1363-1370页

作者： Qi Wan Li-Jun Jiang Zhi-Nian Li Yang Yang Shu-Mao Wang xiao-peng liu Energy Material and Technology Research Institute General Research Institute for Nonferrous MetalsBeijing100088China

The effect of LaNi on thermal storage properties of MgH2 prepared by ball milling under hydrogen atmosphere was *** thermal storage properties,cyclic property and thermal storage mechanism were studied by pres sure-composition-temperature(PC T),X-ray diffraction(XRD)and transmission electron microscopy(TEM).The Van't Hoff curve indicates that the formation enthalpy of Mg-16 wt%LaNi is 74.62 kJ·mol^(-1),which approaches to the theoretical values of *** isothermal measurement indicates that Mg-16 wt%LaNi can absorb 6.263 wt%H_(2)within 30 min at 390℃for the first absorption,the absorption reaction fraction within2 min is over 90.00%,and the desorption reaction fraction within 2 min is 72.63%,increasing by 55.36%compared with that of ***-16 wt%LaNi has better cyclic stability than that of Mg,only decreasing by 0.609 wt%after *** enhancement in thermal storage performances of Mg by adding LaNi is mainly ascribed to the formed Mg_(2)NiH_(4),H_(0.3)Mg_(2)Ni and La_(4)H_(12.19)during the cyclic process which act as catalysts and inhibit the growth of *** above results prove that Mg-16 wt%LaNi is suitable for use as a heat storage material.

关键词： Magnesium Thermal storage Thermodynamic property Kinetic property

Thermal storage properties of Mg with synergistic effect of LaNi and TiH_(2)

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Rare Metals 2023年第5期42卷 1743-1751页

作者： Qi Wan Li-Jun Jiang Zhi-Nian Li Yang Yang Shu-Mao Wang xiao-peng liu Energy Material and Technology Research Institute General Research Institute for Nonferrous MetalsBeijing100088China

The effect of LaNi and Ti on thermal storage properties of MgH_(2)was *** thermal storage performances of Mg are significantly improved by adding LaNi and *** pressure-composition-temperature(PCT)curves indicate that the formation enthalpy for Mg-15 wt%Ti-5 wt%LaNi sample is 73.00 kJ·mol^(-1),which approaches to the theoretical values of pure MgH_(2).The isothermal measurement indicates that,for the Mg-15wt%Ti-5 wt%LaNi,the first absorption reaction fraction within 2 min is 93.77%,increasing by 0.32%,0.24%and0.08%compared with those for Mg,Mg-5 wt%LaNi and Mg-15 wt%Ti,*** first desorption reaction fraction within 2 min is 73.18%,increasing by 55.91%,9.79%and 8.12%compared with those for Mg,Mg-5wt%LaNi and Mg-15 wt%Ti,***,Mg-15 wt%Ti-5 wt%LaNi has the best cyclic stability in all the *** thermal storage performances of Mg by adding both LaNi and Ti are improved mainly ascribed to synergistic effect of in situ formed La_(4)H_(12.19),Mg_(2)NiH_(4),H_(0.3)Mg_(2)Ni and TiH_(2)particles during cyclic *** above analysis demonstrates that Mg-15 wt%Ti-5wt%LaNi is suitable for using as a heat storage material.

关键词： Thermal storage Magnesium hydride Thermodynamic property Kinetics performances Cyclic stability

A shape-reconfigurable,light and magnetic dual-responsive shape-memory micropillar array chip for droplet manipulation

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Chinese Chemical Letters 2024年第1期35卷 456-460页

作者： Wen-Qi Ye Wen-Xin Fu xiao-peng liu Chun-Guang Yang Zhang-Run Xu Research Center for Analytical Sciences Northeastern UniversityShenyang 110819China

Droplet manipulation on an open surface has great potential in chemical analysis and biomedicine ***,most of the reported platforms designed for the manipulation of water droplets cannot thoroughly solve the problem of droplet ***,we report a shape-reconfigurable micropillar array chip for the manipulation of water droplets,oil droplets and water-in-oil ***-in-oil droplets provide an enclosed space for water droplets,preventing the evaporation in an open *** coated on the surface of the chip effectively reduces the droplet movement *** micropillar array chip has light and magnetic dual-response due to the Fe3O4 nanoparticles and the reduced iron powder mixed in the shape-memory *** micropillars irradiated by a near-infrared laser bend under the magnetic force,while the unirradiated micropillars still keep their original *** the absence of a magnetic field,when the micropillars in a temporary shape are irradiated by the near-infrared laser to the transition temperature,the micropillars return to their initial *** this process,the surface morphology gradient caused by the deformation of the micropillars and the surface tension gradient caused by the temperature change jointly produce the driving force of droplet movement.

关键词： Microfluidics Droplet manipulation Micropillar array Shape memory polymer Magnetic response Light response

Inhibition of neddylation ameliorates DSS-induced colitis

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Cellular & Molecular Immunology 2018年第6期15卷 649-650页

作者： Ping Wan xiao-Dan Zhu xiao-peng liu Tao Yu Run-Wei Yan Yuan Guo Ai-Ping Bai Department of Gastroenterology the First Affiliated Hospital of Nanchang UniversityNanchang 330006China Transplant Center Department of Surgerythe Affiliated Hospital of Qingdao UniversityQingdao 266555China Department of Surgery the Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510640China Department of Pharmacy the First Affiliated Hospital of Nanchang UniversityNanchang 330006China

Immune disorders are characterized by excessive immune cell activation and aberrant inflammatory *** signals have been noted to regulate immune cell functions and to contribute to immune diseases,for example,upon extracellular stimulation,cell receptormediated signals,including mammalian target of rapamycin/signal transducer and activator of transcription factor 31,2 and mitogen-activated protein kinase/nuclear factor-κB,3,4 induce the expression of proinflammatory cytokines and molecules,thereby resulting in immune cell activation and sustained inflammation,as seen in inflammatory bowel diseases and other immune disorders.

关键词： sustained diseases stimulation

Microstructure and deuterium resistance of Al_(2)O_(3)/Y_(2)O_(3) composite coating with different annealing atmospheres

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Rare Metals 2022年第3期41卷 877-882页

作者： Wei-Jing Wang Qing-He Yu xiao-peng liu Ke-Zhi Huang Jing Mi Lei Hao Zheng Lu National Engineering Research Center of Nonferrous Metals Materials and Products for New Energy GRINM Group Co.Ltd.Beijing 100088China GRIMAT Engineering Institute Co. Ltd.Beijing 101407China General Research Institute for Nonferrous Metals Beijing 100088China School of Materials Science and Engineering Northeastern UniversityShenyang 110819China

The Al_(2)O_(3)/Y_(2)O_(3) composite coating with a total thickness of 320 nm was prepared by radio-frequency magnetron *** annealing treatments in three different atmosphere,Ar gas,H;and vacuum,were performed in orde... 详细信息

关键词： coating resistance Microstructure

Analysis of two naval pilots’ ejection injuries: Two case reports

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World Journal of Clinical Cases 2022年第24期10卷 8667-8672页

作者： Jia Zeng xiao-peng liu Jia-Cheng Yi Xiang Lu Dan-Dan liu Yan-Qing Jiang Yan-Bing liu Jian-Quan Tian Department of Aviation Disease Naval Medical Center of PLAShanghai 200052China Department of Psychology Naval Medical Center of PLAShanghai 200052China Department of Clinical Medicine School of Basic MedicineHebei Medical UniversityShijiazhuang 050017Hebei ProvinceChina

BACKGROUND Recently,two naval pilots in a two-seat trainer jet were forced to eject urgently due to sudden mechanical failure during night-time *** were both successfully rescued and sent to the hospital for emergency *** this study,we investigate their ejection injuries and recovery *** SUMMARY We analyzed the clinical data of the traumatic condition and recovery process from ejection injuries of two pilots who ejected from a failed trainer jet and *** being successfully rescued and sent to the hospital,they were diagnosed with multiple ejection injuries,including eye trauma,limb bone and joint injury,rib and spine injury,and so *** cases underwent fluid replacement,acid suppression,nutritional support,hemostasis,bone metabolism improvement,phlegm elimination,psychological measurement,blood circulation promotion and detumescence,physical therapy,and external fixation with braces for 1 mo before being discharged from *** then recuperated in a sanatorium for 2 mo,and the related laboratory tests and supplementary examinations show that they recovered from all the above *** successfully passing the psychological test and physical examination,they returned to flight duty 3 mo after *** The causes and conditions of ejection injury in the pilots were very *** they finally recovered quickly and were released,it also serves as a reminder that attention should be paid to pilots’ejection and parachute training in order to significantly reduce ejection injury and improve the ejection success *** addition,air defense support personnel should strengthen search and rescue and on-site emergency measures,and locate and rescue pilots in distress as early as possible to reduce subsequent injuries.

关键词： Aerospace medicine Pilots Aviation accidents Wounds and injuries Case report

Hydrogenation properties of(V_(0.85)Fe_(0.15))_(100-x)M_(x)-Ce BCC solid solution alloys with M=Cr,Mo,Al

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Rare Metals 2023年第1期42卷 313-319页

作者： Yuan-Fang Wu Li-Jun Jiang Wang Zhao Xiu-Mei Guo Xu-Shan Zhao Zhi-Nian Li xiao-peng liu Shu-Mao Wang Institute of Energy Materials and Technology General Research Institute for Nonferrous MetalsBeijing100088China

The structure and hydrogenation properties of (V_(0.85)Fe_(0.15))_(100-x)M_(x)-Ce(x=0,1,3,5;at%) alloys with M=Cr,Mo,Al were *** the alloys show the same phase composition consisting of BCC matric and CeO_(2)phases which distribute along the grain *** hydrogen capacities of (V_(0.85)Fe_(0.15))_(100-x)M_(x)-Ce change little with M,and none of them exceeds 2.0 wt%.But the plateau pressure shows remarkable linearly variation with the amount of M and the lattice parameter of BCC *** additions of Cr,Mo and A1 raise the plateau,but the linear relation of plateau versus BCC lattice parameter of Mo/Al-added alloys is opposite to that of Cr-added alloys and many other conventional hydrogen storage *** radius of hydrogen site is introduced to explain the *** plateau pressure of (V_(0.85)Fe_(0.15))_(100-x)M_(x)-Ce with any kind of M added increases with the contraction of the hydrogen *** plateau pressure of (V_(0.85)Fe_(0.15))_(100-x)M_(x)-Ce can also be reflected by the stability of hydride which is judged by the enthalpy change during the dehydrogenation.

关键词： V-Fe alloy Hydride decomposition enthalpy Plateau pressure Hydrogen site Stability of hydride

^(68)Ga-PSMA ligand PET/CT integrating indocyanine green-guided salvage lymph node dissection for lymph node metastasis after radical prostatectomy

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Asian Journal of Andrology 2022年第1期24卷 97-101页

作者： Teng-Cheng Li Yu Wang Chu-Tian xiao Ming-Zhao Li xiao-peng liu Wen-Tao Huang Liao-Yuan Li Ke Li Jin-Ming Di Xing-Qiao Wen Xin Gao Department of Urology The Third Affiliated HospitalSun Yat-sen UniversityGuangzhou 510630China

To efficiently remove all recurrent lymph nodes(rLNs)and minimize complications,we developed a combination approach that consisted of ^(68)Gallium prostate-specific membrane antigen(PSMA)ligand positron emission tomography(PET)/computed tomography(CT)and integrated indocyanine green(ICG)-guided salvage lymph node dissection(sLND)for rLNs after radical prostatectomy(RP).Nineteen patients were enrolled to receive such treatment.^(68)Ga-PSMA ligand PET/CT was used to identify rLNs,and 5 mg of ICG was injected into the space between the rectum and bladder before *** laparoscopy was used to perform *** extensive LN dissection was performed at level I,another 5 mg of ICG was injected via the intravenous route to intensify the fluorescent signal,and laparoscopy was introduced to intensively target stained LNs along levels I and II,specifically around suspicious LNs,with ^(68)Ga-PSMA ligand PET/***,both lateral peritonea were exposed longitudinally to facilitate the removal of fluorescently stained LNs at levels III and *** total,pathological analysis confirmed that 42 nodes were *** 145 positive LNs stained with ICG,24 suspicious LNs identified with ^(68)Ga-PSMA ligand PET/CT were *** sensitivity and specificity of ^(68)Ga-PSMA ligand PET/CT for detecting rLNs were 42.9%and 96.6%,*** ICG,the sensitivity was 92.8%and the specificity was 39.1%.At a median follow-up of 15(interquartile range[IQR]:6–31)months,15 patients experienced complete biochemical remission(BR,prostate-specific antigen[PSA]0.2 ng ml−***,^(68)Ga-PSMA ligand PET/CT integrating ICG-guided sLND provides efficient sLND with few complications for patients with rLNs after RP.

关键词： indocyanine green prostate cancer recurrent lymph node salvage lymph node dissection