检索结果-南通市图书馆

Stand-Alone Photovoltaic System to Mitigate Pollution in Bodies of Water CASE Study: Laguna Del Carpintero, Tampico, Tamaulipas

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Journal of Environmental Protection 2015年第4期6卷 351-358页

作者： Adán Hernández-Sánchez josefina García-navarro María Esther Bautista-Vargas Santiago Gómez-Carpizo Raúl Hernández-Martínez Academic Program in Energy Engineering Universidad Politécnica de Altamira Altamira México

One of the main environmental issues at present times is the pollution of hydrological resources. Water quality is a major factor to ecosystems, mostly those that support human health, food production and biodiversity. The utilization of renewable energy sources as solar energy through Photovoltaic Cells is a competitive and consolidated option to approach the solution of this kind of issues. This document is intended to introduce a prototype powered by photovoltaic cells to aerate a body of water and increase the amount of Dissolved Oxygen (DO) in water. The body of water studied is the lagoon Laguna del Carpintero in Tampico, Tamaulipas, Mexico. A Stand-alone Photovoltaic System (SPS) prototype was designed for this matter with the purpose of powering a pumping system to sprinkle water to the lake’s surface. This system is a way of ventilating the water so that it gets in direct contact with the surrounding atmosphere obtaining mean values compared to prevailing values of DO contained in the lagoon. We obtained DO concentration values going from 7 to 8 mg/L of O2 in different tests which can be considered an appropriate parameter for this body of water. The efficiency of the SPS was proved as it showed good performance by supplying power to the oxygenation system compared to the dimensional estimate. Improving the SPS prototype is the main goal of this work so that this oxygenation system could be used in other urban lagoons in the surrounding area without being powered by electrical grid. This makes possible to locate it at any point of the body of water to mitigate the pollution by increasing the amount of DO.

关键词： Photovoltaic System Pollution Water Aeration Bodies of Water Laguna de Carpintero

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Radiochemical Characterization of Phosphogypsum for Engineering Use

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Journal of Environmental Protection 2011年第2期2卷 168-174页

作者： Hanan Tayibi Catalina Gascó Nuria navarro Aurora López-Delgado Mohamed Choura Francisco J. Alguacil Félix A. López National Centre for Metallurgical Research (CENIM) CSIC Centro de Investigaciones Energeticas Medioambientales y Tecnologicas (CIEMAT)

The new phosphogypsum (PG) waste management policy allowed to reduce the negative environmental impact of this residue by finding better alternatives uses with an extremely limited radiological impact. Building material could be one of these alternatives that could lead to the production of final products with good mechanical properties and very limited radionuclides content. The optimization of the radioactive levels in the building materials when PG is used for its production requires the previous knowledge of the content of naturally occurring radionuclides in the PG waste. This article aims the radioactive characterization of two different PG sources (from Spain (Fertiberia S.A., Huelva) and Tunisia (Sfax), before being incorporated in building materials. For this purpose, the natural selected radionuclides content belonging to uranium and thorium decay series and 40K was determined, by means of two different methods: i) gamma spectrometry with high-purity germanium detectors and ii) laser-induced kinetic phosphorimetry (KPA-11 Chemcheck Instruments Inc., Richland, WA). Also, the semiquantitative chemical composition, the mineralogical study and the morphological aspect of the PG samples were analysed. The results obtained from both techniques show that 226Ra and 210Po are the main source of the radioactivity in both studied PG samples. However, PG samples from Tunisia present low natural radionuclide levels (30.7 Bq?kg–1 average value for 238U, 188 Bq?kg–1(226Ra), 163 Bq?kg–1(210Pb), 12.4 Bq?kg–1 (232Th)) compared to the level of natural radionuclides in PG samples from Huelva (102 Bq?kg–1 average value for 238U, 520 Bq?kg–1(226Ra), 881 Bq?kg-1(210Pb) and 8 Bq?kg-1 (232Th). Both PG fulfil European Commission Recommendation (ECR) for the maximum activity concentrations of naturally-occurring radionuclides for industrial by product used in building materials in the European Union.

关键词： Phosphogypsum Radionuclides Analysis Phosphate Industry Gamma Spectrometry TENORM

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Electrochemical and Photoelectrochemical Decoloration of Amaranth Dye Azo Using Composited Dimensional Stable Anodes

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Journal of Environmental Protection 2013年第1期4卷 136-143页

作者： Moisés I. Salazar-Gastélum Edgar A. Reynoso-Soto Shui W. Lin Sergio Perez-Sicairos Rosa M. Félix-navarro Ingeniería en Nanotecnología Centro de Graduados e Investigación en Química del Instituto Tecnológico de Tijuana Tijuana México

In this paper we report the results of our experimental work conducted to decoloration of a well-known highly toxic Amaranth dye by electrochemical and photoelectrochemical methods. Throughout this investigation were used two different Dimensional Stable Anode (DSA) electrodes, namely, IrO2-Ru2O-SnO2-TiO2/Ti and Ru2O-SnO2-TiO2/Ti. The experimental results show that IrO2-Ru2O-SnO2-TiO2/Ti electrode has higher performance on amaranth decoloration than Ru2O-SnO2-TiO2/Ti electrode, but with the disadvantage of higher energy consumption. For higher degradation of Amaranth dye with both DSA electrodes, the process was carried out via photoelectrochemical method. Our experimental results clearly shown the decrease in absorbance of all UV-Vis peaks due to the mineralization of the azo dye;also, it was noteworthy photoelectrochemical process consumes less energy under the same experimental conditions than electrochemical process. The IrO2-Ru2O-SnO2-TiO2/Ti electrode reaches a higher degradation degree of Amaranth solutions than Ru2O-SnO2-TiO2/Ti electrode using a photoelectrochemical technique.

关键词： Photoelectrochemical Decoloration DSA Azo Amaranth Dye

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作者： (美)乔·纳瓦罗(Joe navarro) (美)约翰·谢弗尔(John R.Schafe)

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慢性低氧大鼠肾上腺皮质球状带的变化

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解剖学报 1998年第1期29卷 90-93,I016页

作者：瓦龙美 Jorge,CN 华北煤炭医学院组织学与胚胎学教研室德国柏林自由大学神经病理研究所

将Ｗｉｓｔａｒ大鼠喂养在逐渐降低的常压低氧条件下，用氮气和空气的混合气体调节氧含量。氧浓度由正常含量逐步降低为１５％、１２％、１０％、８％，最后降至７％，实验共进行１１２ｄ。结果显示低氧动物体重下降，肾上腺重量减少，... 详细信息

将Ｗｉｓｔａｒ大鼠喂养在逐渐降低的常压低氧条件下，用氮气和空气的混合气体调节氧含量。氧浓度由正常含量逐步降低为１５％、１２％、１０％、８％，最后降至７％，实验共进行１１２ｄ。结果显示低氧动物体重下降，肾上腺重量减少，肾上腺皮质球状带萎缩，脂质丢失，球状带细胞线粒体肿胀和空泡变性，溶酶体增多。表明在慢性常压低氧中，当吸入气氧含量降至７％时，可导致肾上腺皮质球状带细胞超微结构改变，从而影响醛固酮的合成与分泌。

关键词：低氧球状带超微结构萎缩大鼠肾上腺皮质

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Meta-analysis of CO_(2) conversion,energy efficiency,and other performance data of plasma-catalysis reactors with the open access PIONEER database

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Journal of Energy Chemistry 2023年第11期86卷 318-342,I0007页

作者： Antoine Salden Maik Budde Carolina A.Garcia-Soto Omar Biondo Jairo Barauna Marzia Faedda Beatrice Musig ChloéFromentin Minh Nguyen-Quang Harry Philpott Golshid Hasrack Domenico Aceto Yuxiang Cai Federico Azzolina Jury Annemie Bogaerts Patrick Da Costa Richard Engeln María Elena Gálvez Timo Gans Tomas Garcia Vasco Guerra Carlos Henriques Monika Motak Maria Victoria navarro Vasile I.Parvulescu Gerard Van Rooij Bogdan Samojeden Ana Sobota Paolo Tosi Xin Tu Olivier Guaitella Department of Physics University of Trento38100 PovoItaly Department of Applied Physics and Science Education Eindhoven University of Technology5600 MB EindhovenThe Netherlands Instituto de Plasmas e Fusão Nuclear Instituto Superior TécnicoUniversidade de Lisboa1049-001 LisboaPortugal LPP CNRSÉcole PolytechniqueSorbonne UniversitéUniversitéParis-SaclayIP-Paris 91128 PalaiseauFrance Department of Organic Chemistry Biochemistry and CatalysisUniversity of BucharestBucharestRomania Research Group PLASMANT Department of ChemistryUniversity of AntwerpUniversiteitsplein 1Wilrijk B-2610Belgium DIFFER 5612AJ EindhovenThe Netherlands Instituto de Carboquímica ICB-CSIC Zaragoza 50018Spain Faculty of Energy and Fuels AGH University of KrakowKrakowPoland Institut Jean le Rond d’Alembert CNRS UMR 7190-Sorbonne UniversitéSaint-Cyr l’Ecole 78210France Laboratoire Catalyse et Spectrochimie(LCS) CNRS-ENSICAEN-Universitéde Caen6 boulevard du Maréchal-Juin14000 CaenFrance CQE Centro de Química EstruturalInstituto Superior TécnicoUniversidade de LisboaAv.Rovisco Pais1049-001 LisboaPortugal School of Physical Sciences and National Centre for Plasma Science and Technology Faculty of Science and HealthDublin City UniversityDublinIreland ASML De Run 65015504 DR VeldhovenThe Netherlands Faculty of Science and Engineering Maastricht University6229 GS MaastrichtThe Netherlands CNR Istituto per la Scienza e Tecnologia dei Plasmi(ISTP)Italy Department of Electrical Engineering and Electronics University of LiverpoolLiverpool L693GJUK

This paper brings the comparison of performances of CO_(2)conversion by plasma and plasma-assisted catalysis based on the data collected from literature in this field,organised in an open access online database.This tool is open to all users to carry out their own analyses,but also to contributors who wish to add their data to the database in order to improve the relevance of the comparisons made,and ultimately to improve the efficiency of CO_(2)conversion by plasma-catalysis.The creation of this database and database user interface is motivated by the fact that plasma-catalysis is a fast-growing field for all CO_(2)conversion processes,be it methanation,dry reforming of methane,methanolisation,or others.As a result of this rapid increase,there is a need for a set of standard procedures to rigorously compare performances of different systems.However,this is currently not possible because the fundamental mechanisms of plasma-catalysis are still too poorly understood to define these standard procedures.Fortunately however,the accumulated data within the CO_(2)plasma-catalysis community has become large enough to warrant so-called“big data”studies more familiar in the fields of medicine and the social sciences.To enable comparisons between multiple data sets and make future research more effective,this work proposes the first database on CO_(2)conversion performances by plasma-catalysis open to the whole community.This database has been initiated in the framework of a H_(2)0_(2)0 European project and is called the“PIONEER Data Base”.The database gathers a large amount of CO_(2)conversion performance data such as conversion rate,energy efficiency,and selectivity for numerous plasma sources coupled with or without a catalyst.Each data set is associated with metadata describing the gas mixture,the plasma source,the nature of the catalyst,and the form of coupling with the plasma.Beyond the database itself,a data extraction tool with direct visualisation features or advanced filtering functionalities has been developed a

关键词： Open-access database on plasma-catalysis experiment CO_(2) conversion Plasma-catalysis Carbon capture and utilisation(CCU) Energy efficiency Specific energy input Dielectric barrier discharge Packed bed reactor Methanation Dry reforming of methane

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作者： (美)乔·纳瓦罗(Joe navarro) (美)约翰·谢弗尔(John R.Schafe)

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一座梯田式的曲线书山——天津滨海图书馆

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设计家 2017年第3期 98-102页

作者： Winy Maas Jacob van Rijs Nathalie de Vries Wenchian Shi María López Calleja Chi Li ángel Sánchez navarro Daehee Suk Guang Ruey Tan Xichen Sun Michael Zhang Kyosuk Lee Mariya Gyaurova Jaime Dominguez Bálgoma Antonio Luca Coco Costanza Cuccato Matteo Artico Tomaso Maschietti Ossip van Duivenbode MVRDV建筑设计事务所

项目地点:天津滨海新区项目面积:33,700平方米完成时间:2017项目功能:图书馆合作建筑师:中国天津市城市规划设计研究院建筑分院室内设计:天津市建筑设计院灯光照明:华谊建源照明设计所有项目资料由MVRDV事务所提供MVRDV与天津城市规划... 详细信息

项目地点:天津滨海新区项目面积:33,700平方米完成时间:2017项目功能:图书馆合作建筑师:中国天津市城市规划设计研究院建筑分院室内设计:天津市建筑设计院灯光照明:华谊建源照明设计所有项目资料由MVRDV事务所提供MVRDV与天津城市规划设计研究院合作建成天津滨海图书馆,于10月正式开放:这个全新的33,700m2文化中心以中庭的发光球形报告厅为焦点,四周环绕着梯田般层叠的书架,书架贯穿中央天井与球体相呼应。波浪式的书架是建筑中的主要空间元素,既界定了空间。

关键词：天津滨海图书馆天津市建筑设计院城市规划设计研究院建筑师建筑体量项目面积

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Description of the Factors Associated with Trigger Finger in Patients Treated at Petroleos Mexicanos “Pemex”

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Journal of Biosciences and Medicines 2023年第7期11卷 151-159页

作者： Fernando Barbosa-Villarreal Cuahutémoc Márquez-Espriella.rodrigo Dávila-Díaz Marco A. Cuervo-Vergara Blanca Y. Arambula-Sánchez Alberto I. Cahuana-Quispe Victor A. Esquivel-Chávez Carlos E. García-Córdova Ana P. Campollo-López Mauricio Gutierrez-Alvarez Jesus R. García-Corral Alfredo Chama-Naranjo Daniel de Luna-Gallardo Ricardo A. Pulido-López Isaac F. Recio-España Esteban I. Campos-Serna Carlos I. navarro-Delgadillo josé C. Martínez-López Victor H. Avalos-Gómez Alejandro Cruz-Zarate Department of Plastic and Reconstructive Surgery Hospital Central Sur Petróleos Mexicanos Mexico City Mexico

Background: The trigger finger, also known as stenosing tenosynovitis of the flexor tendon, is a common cause of hand disability;This can result in significant limitations in certain daily living activities. It is possible to treat this condition with conservative or surgical methods. Methods: This is a retrospective, observational, cross-sectional and descriptive study. The source population consisted of all patients with a diagnosis of trigger finger who had been treated in the department of plastic and reconstructive surgery of our institution between 2020 and 2023. The primary objective of this study is to determine the prevalence and characterize the clinical and surgical characteristics of the population affected by trigger finger in our hospital. Results: The total population was 237 patients, of which 165 were women (70%) and 72 men (30%). The most affected hand was the right hand, with a total of 158 patients (67%). In the right hand, the middle finger was the most affected (45%). Of the 237 patients, 80 of them had obesity (34%), 86 had type 2 diabetes mellitus (36%), 95 had systemic arterial hypertension (40%). Open technique was performed in 190 (80%) patients, while percutaneous technique was performed in 47 (20%) of them. Conclusion: The female sex was twice as frequent, and the middle finger and thumb were the most affected. Most of the patients received surgical treatment with open approach and percutaneous approach in 20% of them.

关键词： Trigger Finger Tendinopathy

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Bilateral Gluteal Reconstruction with Double Flap Secondary to Biopolymers Injection

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Journal of Biosciences and Medicines 2021年第7期9卷 174-183页

作者： Miguel Ángel Sánchez-Morán García Carlos I. navarro-Delgadillo Pamela Sánchez-Morán Pérez Rogelio Cordova-López Vanessa Moreno-Diaz Oscar Pérez-Osorio Donovan Magaña-Vega Willian Bautista-Santos Providence Medical Clinic Ciudad de México México

The injection of adjuvant substances for aesthetic purposes is a public health problem, for 40 years this problem has been described throughout our continent, the vast majority of women patients are affected by the infiltration of silicon, mineral oils, automotive oil, methyl methacrylate, cement and various oily substances. This is a 54-year-old female patient who for about 30 years for cosmetic purposes was injected with mineral oil (quantity unknown) in both glutei with the aim of buttock augmentation. Physical examination was observed an important deformity in each buttock, hyperkeratosis with discoloration in both buttocks, loss of bilateral projection, right buttock with a secondary tumor of 22 cm × 11 cm and left 22 cm × 10 cm, stony appearance, local hyperthermia, painful on manipulation, with diffuse nodular lesions measuring 2 cm × 2 cm, without evidence of loss of continuity that would condition secretion leakage. Surgical planning is based on the very important size of the initial defect that we would have to reconstruct, so that the rotation of two wide-based flaps could guarantee better survival and occlusion of the defect, since the realization of a graft would cause a significant deformity, and the realization of a microsurgical flap in a fibrous tissue would inevitably result in its necrosis. The pathophysiology of the adjuvant disease is extremely complex, therefore it must be addressed by a multidisciplinary group with extensive experience.

关键词： Gluteal Reconstruction Biopolymers Foreign Materials Biomaterials Modelants

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