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Mine disaster survivor’s pelvic floor hernia treated with laparoscopic surgery and a perineal approach:A case report

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World Journal of Clinical Cases 2020年第18期8卷 4228-4233页

作者： Kai Chen yuan-Zhi lan Jing Li yuan-yuan Xiang Dong-Zhu Zeng Department of General Surgery The Third Affiliated Hospital of Chongqing Medical UniversityChongqing 401120China

BACKGROUND A pelvic floor hernia is defined as a pelvic floor defect through which the intraabdominal viscera may *** is an infrequent complication following abdominoperineal *** type of hernia requires surgical repair by conventional or reconstructive *** main treatments could be transabdominal,transperineal or a *** SUMMARY In this article,we present the case of a recurrent perineal incisional hernia,postresection of the left side of the pelvis,testis and lower limbs resulting from a mine disaster 18 years *** laparoscopic surgery with a perineal approach was *** pelvic floor defect was repaired by a biological mesh and one pedicle skin *** signs of recurrence were indicated during the 2 years of *** The combination of laparoscopic surgery with a perineal approach was *** use of the biological mesh and pedicle skin flap to restructure the pelvic floor was effective.

关键词： Case report Pelvic floor hernia Hernioplasty Biological mesh Laparoscopic surgery Perineal approach

Soy protein isolate(SPI)-hemin complex nanoparticles as a novel water-soluble iron-fortifier:Fabrication,formation mechanism and in vitro bioavailability

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Food Bioscience 2022年第5期49卷 369-377页

作者： Chao Fan Jiang-lan yuan Jing Guo Xu Kang Cooperative Innovation Center of Industrial Fermentation(Ministry of Education&Hubei Province) College of Bioengineering and FoodHubei University of TechnologyWuhan430068China

Hemin is recognized as a superior biological iron-fortifier in the prevention and treatment of iron deficiency ***,free hemin could have low bioavailability due to its insolubility in intestinal fluid after passing through the digestive tract,so hemin as a direct fortifier is not as effective as it should *** this study,a novel hemin-delivery system with good water-solubility was developed by fabricating soy protein isolate(SPI)-hemin complex nanoparticles through pH-driven method,and the formation mechanism and bioavailability were also *** could bind to SPI and form nanoparticles with a diameter ranging from 100 to 300 nm in the process of pH dropping from 12.0 to 7.0,and thereby significantly improve the water-solubility of *** was proved that the nanoparticles were produced mainly through hydrophobic interaction between SPI and hemin,and driven by *** results from in vitro simulated gastrointestinal digestion experiments indicated that bioavailability of hemin was also significantly improved(P<0.05),and the value in SPI-hemin nanoparticles reached nearly 80%at the concentrations of 1.0%(w/v)SPI and 0.25%(w/v)***-hemin nanoparticles could be an innovation for improving the solubility and bioavailability of hemin and an easily acceptable candidate for the design of novel iron-fortified foods.

关键词： Hemin Soy protein isolate pH-driven Nanoparticle Interaction Bioavailability

Optimization of magnetic separation process for iron recovery from steel slag

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Journal of Iron and Steel Research International 2017年第2期24卷 165-170页

作者： yuan-pei lan Qing-cai Liu Fei Meng De-liang Niu Heng Zhao Department of Metallurgy Engineering College of Material Science & Engineering Chongqing University Chongqing 400044 China Chongqing Materials Research Institute Chongqing 400707 China

To improve the efficiency of iron recovery from steel slag and reduce the wear-and-tear on facilities, a new method was proposed by adding a secondary screen sizer to the magnetic separation process according to grain size distribution of magnetic iron （M-Fe） in the slag. The final recycling efficiency was evaluated by calculating the percentage of recycled M-Fe to the maximum amount of M-Fe that could be recovered. Three types of slags, namely basic oxygen furnace slag, desul- furization slag, and iron ladle slag, were studied, and the results showed that the optimized re- covery efficieneies were 93.20%, 92. 48%, and 85.82% respectively, and the recycling efficien eies were improved by 9.58%, 7.11%, and 6.24% respectively. Furthermore, the abrasion between the mill equipment and the remaining slags was significantly reduced owing to the efficient recovery of larger M-Fe particles. In addition, the using amount of grinding balls was reduced by 0. 46 kg when every 1 t steel slag was processed.

关键词： Steel slag Magnetic separation Iron recovery Recovery efficiency Abrasion

Optimization of iron and aluminum recovery in bauxite

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Journal of Iron and Steel Research International 2020年第3期27卷 310-318页

作者： Qian Long Jun-qi Li Chao-yi Chen yuan-pei lan Guo-ling Wei Department of Metallurgical Engineering College of Materials and MetallurgyGuizhou UniversityGuiyang 550025GuizhouChina Guizhou Province Key Laboratory of Metallurgical Engineering and Process Energy Saving Guiyang 550025GuizhouChina

Recovering iron and aluminum efficiently is the key route to utilize low-grade high-iron *** to optimize the iron separating process and elevate both Fe and Al recovery ratio,three different Fe-Al recovery processes with different magnetic roasting(R),Bayer leaching process(L)and magnetic separation(S)orders were *** studied processes include bauxite leaching→red mud roasting→magnetic separation(L-R-S),bauxite roasting→magnetic separation→leaching(R-S-L)and bauxite roasting→leaching→magnetic separation(R-L-S).The iron recovery ratio,Fe2O3 content in iron concentration and the bauxite dissolution ratio of each process were ***,the optimizations of the leaching,roasting and magnetic separation conditions were *** indicate that the R-S-L process should be an advisable order to recover both alumina and *** the three processes,the R-S-L route had the highest alumina dissolution ratio and iron recovery ratio,which was 86.20%and 69.58%,respectively,while the Fe2O3 content of the iron concentrate was 40.66%.

关键词： High-iron bauxite Magnetic roasting Magnetic separation Recovery ratio Dissolution ratio

Research on the Maintenance of Ascending node Longitude of IGSO Satellite

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Research on the Maintenance of Ascending node Longitude of I...

Effect of loureirin A against Candida albicans biofilms

第五届中国卫星导航学术年会

作者： PENG Cheng-long WENG yuan-lan ZHANG Zhi College of Aerospace Science and Engineering National University of Defense Technology

ISBN: (纸本)9783642547362

IGSO satellite plays important part to COMPASS Navigation Satellite System and its position significantly impacts performance of the whole navigation system service. With various of perturbations and initial orbit error, ascending node longitude of IGSO satellite drift continued, which varies service area of navigation system. It’s necessary to amendment longitude of the satellite ascending node to keep navigation precision periodically. Control strategies were analyzed alone, and offset of semi-major axis is determined base d on the change law of ascending node longitude. optimum control velocity increment to amendment orbit by the means of Lagrange multiplier and a control method to maintain satellite orbit are presented. Simulation results have verified the effectiveness and convenience. This paper also provides reference of Maintenance of navigation constellation.

关键词： IGSO Ascending node longitude Position maintenance Optimization control

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Chinese Journal of Natural Medicines 2019年第8期17卷 616-623页

作者： LIN Mei-Yu yuan Zhong-lan HU Dan-Dan HU Gan-Hai ZHANG Ri-Li ZHONG Hua YAN lan JIANG yuan-Ying SU Juan WANG Yan School of Pharmacy Naval Military Medical University Shanghai 200433 China Department of Pharmacy Fujian University of Traditional Chinese Medicine Fuzhou 350000 China

Loureirin A is a major active component of Draconis sanguis, a traditional Chinese medicine. This work aimed to investigate the activity of loureirin A against Candida albicans biofilms. 2, 3-Bis-(2-methoxy-4-nitro-5-sulfophenyl)-2 H-tetrazolium-5-carboxanilide(XTT) reduction assay and scanning electron microscopy were used to investigate the anti-biofilm *** inhibitory concentration testing and time-kill curve assay were used to evaluate fungicidal activity. Cell surface hydrophobicity(CSH) assay and hyphal formation experiment were respectively carried out to investigate adhesion and morphological transition,two virulence traits of C. albicans. Real-time RT-PCR was used to investigate gene expression. Galleria mellonella-C. albicans and Caenorhabditis elegans-C. albicans infection models were used to evaluate the in-vivo antifungal effect. Human umbilical vein endothelial cells and C. elegans nematodes were used to evaluate the toxicity of loureirin A. Our data indicated that loureirin A had a significant effect on inhibiting C. albicans biofilms, decreasing CSH, and suppressing hyphal formation. Consistently, loureirin A down-regulated the expression of some adhesion-related genes and hypha/biofilm-related genes. Moreover, loureirin A prolonged the survival of Galleria mellonella and Caenorhabditis elegans in C. albicans infection models and exhibited low toxicity. Collectively,loureirin A inhibits fungal biofilms, and this effect may be associated with the suppression of pathogenic traits, adhesion and hyphal formation.

关键词： Candida albicans Loureirin A Anti-biofilm Morphological transition

Nonlinearity of the Dipole Moment Surface and Intensities Anomaly of CHCl_(3)

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Chinese Physics Letters 2000年第1期17卷 13-15页

作者： LIN Hai yuan lan-Feng WANG Dong ZHU Qing-Shi Open Laboratory of Bond Selective Chemistry and the Institute for Advanced StudiesUniversity of Science and Technology of ChinaHefei 230026

Relative absorption intensities of the Fermi resonance polyads of isolated C-H chromophore for the CHC13 molecule are calculated by one-dimensional dipole moment surface which had been obtained by the ab initio density functional method B3PW91 with 6-311++G(3df,2pd)basis set,and agree very well with the experimental *** is shown that the nonlinearity of the dipole moment surface in the vicinity of the equilibrium configuration is responsihle for the intensities anomaly,*** unusual strong intensities of the second Fermi resonance polyad.

关键词： Fermi dipole nonlinearity

Electroacupuncture promotes peripheral nerve regeneration after facial nerve crush injury and upregulates the expression of glial cell-derived neurotrophic factor

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Neural Regeneration Research 2019年第4期14卷 673-682页

作者： Jing Fei Lin Gao Huan-Huan Li Qiong-lan yuan Lei-Ji Li Department of Otorhinolaryngology Head and Neck Surgery Affiliated Hospital of Southwest Medical University Department of Anatomy and Neurobiology Tongji University School of Medicine

The efficacy of electroacupuncture in the treatment of peripheral facial paralysis is known, but the specific mechanism has not been clarified. Glial cell-derived neurotrophic factor(GDNF) has been shown to protect neurons by binding to N-cadherin. Our previous results have shown that electroacupuncture could increase the expression of N-cadherin mRNA in facial neurons and promote facial nerve regeneration. In this study, the potential mechanisms by which electroacupuncture promotes nerve regeneration were elucidated through assessing the effects of electroacupuncture on GDNF and N-cadherin expression in facial motoneurons of rabbits with peripheral facial nerve crush injury. New Zealand rabbits were randomly divided into a normal group(normal control, n = 21), injury group(n = 45) and electroacupuncture group(n = 45). Model rabbits underwent facial nerve crush injury only. Rabbits in the electroacupuncture group received facial nerve injury, and then underwent electroacupuncture at Yifeng(TE17), Jiache(ST6), Sibai(ST2), Dicang(ST4), Yangbai(GB14), Quanliao(SI18), and Hegu(LI4; only acupuncture, no electrical stimulation). The results showed that in behavioral assessments, the total scores of blink reflex, vibrissae movement, and position of apex nasi, were markedly lower in the EA group than those in the injury group. Hematoxylin-eosin staining of the right buccinator muscle of each group showed that the cross-sectional area of buccinator was larger in the electroacupuncture group than in the injury group on days 1, 14 and 21 post-surgery. Toluidine blue staining of the right facial nerve tissue of each group revealed that on day 14 post-surgery, there was less axonal demyelination and fewer inflammatory cells in the electroacupuncture group compared with the injury group. Quantitative real time-polymerase chain reaction showed that compared with the injury group, N-cadherin mRNA levels on days 4, 7, 14 and 21 and GDNF mRNA levels on days 4, 7 and 14 were significa

关键词： nerve regeneration facial paralysis electroacupuncture glial cell-derived neurotrophic factor N-cadherin crush injury neuronal apoptosis facial neuron nerve demyelination neural regeneration

Solid oxide membrane-assisted electrolytic reduction of Cr_(2)O_(3) in molten CaCl_(2)

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International Journal of Minerals,Metallurgy and Materials 2020年第12期27卷 1626-1634页

作者： Bo Wang Chao-yi Chen Jun-qi Li Lin-zhu Wang yuan-pei lan Shi-yu Wang College of Materials and Metallurgy Guizhou UniversityGuiyang 550025China Guizhou Province Key Laboratory of Metallurgical Engineering and Process Energy Saving Guiyang 550025China

Solid oxide membrane-assisted electrolytic reduction of solid Cr_(2)O_(3) to Cr in molten CaCl_(2) was performed using a sintered porous Cr_(2)O_(3) cathode paired with an yttria-stabilized zirconia(YSZ)tube anode containing carbon-saturated liquid copper *** of the reduction mechanism,ion migration behavior,and effects of cathode pellet porosity and particle size on the electrolysis products and reduction rate revealed that the cathode microstructure and electrolytic conditions were key factors influencing the electrolysis *** results were obtained when the cathode was characterized by high porosity and a small particle size because this combination of features contributed to ion *** electrochemical activation was observed when cathode pellets prepared by 4 MPa molding followed by 2 h of sintering at 1150℃ were *** electrode reduction process(Cr^(3+)→Cr^(2+)→Cr)was promoted by high electrode voltages,and Cr metal was efficiently *** proposed method appears to be well suited for electrolytic Cr production because it does not require expensive pre-electrolysis techniques or generate harmful by-products.

关键词： solid oxide membrane yttria-stabilized zirconia electrometallurgy chromium molten salt