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Novel electrode structure in a DBD reactor applied to the degradation of phenol in aqueous solution

Plasma Science and Technology 2017年第7期19卷 71-84页

作者： Antonio MErCADO-CABrErA rosendo PE?A-EGUIlUZ régulo lópez-callejas Bethsabet JArAMIllO-SIErrA raúl VAlENCIA-AlVArADO Benjamín rODríGUEZ-MéNDEZ Arturo E MU?OZ-CASTrO Instituto Nacional de Investigaciones Nucleares Plasma Physics Laboratory Tecnológico de Estudios Superiores de Tianguistenco

Phenol degradation experimental results are presented in a similar wastewater aqueous solution using a non-thermal plasma reactor in a coaxial dielectric barrier discharge. The novelty of the work is that one of the electrodes of the reactor has the shape of a hollow screw which shows an enhanced efficiency compared with a traditional smooth structure. The experimentation was carried out with gas mixtures of 90% Ar-10% O2, 80% At-20% 02 and 0% Ar-100% 02. After one hour of treatment the removal efficiency was 76%, 92%, and 97%, respectively, assessed with a gas chromatographic mass spectrometry technique. For both reactors used, the ozone concentration was measured. The screw electrode required less energy, for all gas mixtures, than the smooth electrode, to maintain the same ozone concentration. On the other hand, it was also observed that in both electrodes the electrical conductivity of the solution changed slightly from ,-0.0115 S m^-1 up to -0.0430 S m^-1 after one hour of treatment. The advantages of using the hollow screw electrode structure compared with the smooth electrode were：（1） lower typical power consumption, （2） the generation of a uniform plasma throughout the reactor benefiting the phenol degradation, （3） a relatively lower temperature of the aqueous solution during the process, and （4） the plasma generation length is larger.

关键词： DBD gas discharges removal organic compounds discharge in liquids

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Atmospheric-pressure dielectric barrier discharge generation by a full-bridge flying capacitor multilevel inverter

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Plasma Science and Technology 2017年第7期19卷 40-49页

作者： rosendo PE?A-EGUIlUZ José A lópez-FErNáNDEZ Antonio MErCADO-CABrErA Bethsabet JArAMIllO-SIErrA régulo lópez-callejas Benjamín rODríGUEZ-MéNDEZ raúl VAlENCIA-AlVArADO Allan A FlOrES-FUENTES Arturo E MU?OZ-CASTrO Plasma Physics laboratory Instituto Nacional de Investigaciones Nucleares Tecnológico de Estudios Superiores de Tianguistenco Universidad Autónoma del Estado de México

A new configuration of a resonant full-bridge flying capacitor multicell inverter has been designed and constructed with the aim of achieving an extended output voltage frequency range with low harmonic distortion and reduced semiconductor commutation losses. This configuration was tested as a power supply for two different coaxial dielectric barrier discharge reactors, one of them employed for electric characterization and the other one for inorganic compound elimination in an aqueous solution. Two different gas mixtures, 90% Ar-10% 02 and 80% Ar-20% 02, were individually supplied during the experiments; the results showed a high- efficiency removal of meta-cresol （m-cresol） to the order of 98%, which was obtained by adding more oxygen to the plasma gas mixture.

关键词： plasma applications water pollution plasma sources power supply circuits electricdischarges

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Expression of triggering receptor on myeloid cell 1 and histocompatibility complex molecules in sepsis and major abdominal surgery

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World Journal of Gastroenterology 2005年第47期11卷 7473-7479页

作者： Nestor González-roldán Eduardo Ferat-Osorio rosalía Aduna-Vicente Isabel Wong-Baeza Noemí Esquivel-callejas Horacio Astudillo-de la Vega Patricio Sánchez-Fernández lourdes Arriaga-Pizano Miguel Angel Villasís-Keever Constantino lópez-Macías Armando Isibasi Unidad de Investigación Médica en Inmunoquímica Hospital de EspecialidadesCentro Médico Nacional Siglo ⅩⅪInstituto Mexicano del Seguro Social (IMSS)México laboratorio de Oncología Molecular Unidad de Investigación Médica en Enfermedades OncológicasHospital de OncologíaCentro Médico Nacional Siglo ⅩⅪIMSSMéxico Servicio de Gastrocirugía Hospital de EspecialidadesCentro Médico Nacional Siglo ⅩⅪIMSSMéxico Unidad de Investigación en Epidemiología Clínica Hospital de PediatríaCentro Médico Nacional Siglo ⅩⅪIMSSMéxico

AIM： To evaluate the surface expression of triggering receptor on myeloid cell 1 （TrEM-1）, class Ⅱ major histocompatibility complex molecules （HlA-Dr）, and the expression of the splicing variant （svTrEH-1） of TrEM-1 in septic patients and those subjected to major abdominal surgery. METHODS： Using flow cytometry, we examined the surface expression of TrEM-1 and HlA-Dr in peripheral blood monocytes from 11 septic patients, 7 elective gastrointestinal surgical patients, and 10 healthy volunteers, svTrEM-1 levels were analyzed by rT-PCr. rESUlTS： Basal expression of TrEM-1 and HlA- Dr in healthy volunteers was 35.91±14.75 MFI and 75.8±18.3%, respectively. In septic patients, TrEM-1 expression was 59.9±23.9 MFI and HlA-Dr expression was 44.39±20.25%, with a significant difference between healthy and septic groups （P〈0.05） for both molecules. In the surgical patients, TrEM-1 and HlA-Dr expressions were 56.8±20.85 HFI and 71±13.8% before surgery and 72.65±29.92 MFI and 72.82±22.55% after surgery. TrEM-1 expression was significantly different （P = 0.0087） between the samples before and after surgery and svTrEM-1 expression was 0.8590± 0.1451 MF1, 0.8820±0.1460 MF1, and 2.210±0.7873 MF1 in the healthy, surgical （after surgery） and septic groups, respectively. There was a significant difference （P = 0.048） in svTrEM-1 expression between the healthy and surgical groups and the septic group. CONClUSION： TrEM-1 expression is increased during systemic inflammatory conditions such as sepsis and the postoperative phase. Simultaneous low expression of HlA-Dr molecules correlates with the severity of illness and increases susceptibility to infection. Additionally, TrEM-1 expression is distinctly different in surgical patients at different stages of the inflammatory response before and after surgery. Thus, surface TrEM-1 appears to be an endogenous signal during the course of the inflammatory response, svTrEM-1 expression is significantly increased during sepsis, appearing to be a

关键词： TrFM-1 HlA-Dr SIrS CArS Sepsis

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Magazzino意大利艺廊

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现代装饰 2018年第7期 50-55页

作者： Miguel Quismondo Jesús Aparicio Alfaro rocio Calzado lópez Miguel Bello Escribano Javier callejas 范嘉苑美国MQ ArCHITECTUrE Waterhouse Cifuentes Design MQ ArCHITECTUrE

Magazzino意大利艺廊位于纽约,是由展品主人Nancy Olnick和Giorgio Spanu构思出的一个私人项目,旨在收藏他们的战后意大利艺术品。设计团队受业主委托,要对已有的11000平方英尺的建筑进行全面翻修,并增建一个14000平方英尺的新建筑。现... 详细信息

Magazzino意大利艺廊位于纽约,是由展品主人Nancy Olnick和Giorgio Spanu构思出的一个私人项目,旨在收藏他们的战后意大利艺术品。设计团队受业主委托,要对已有的11000平方英尺的建筑进行全面翻修,并增建一个14000平方英尺的新建筑。现有的l形建筑结构于1946年建成,当时是奶制品的分销中心,并被装货码头和檐蓬包围。新的建筑需要一个更高的空间,用于收藏一些大件的艺术品,并易于引入自然光线。

关键词：简易屋顶建筑体 Magazzino 意大利

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