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陶瓷材料超塑性的研究进展与应用前景

材料导报 1998年第5期12卷 33-36页

作者：叶建东饶平根陈楷 A.dominguez-Rodriguez 华南理工大学材料学院广州510641 Depto.de Fisica de la Materia Condensada Universidad de SevillaSpain

综述了陶瓷材料超塑性的研究进展和应用前景,介绍了超塑性成型、超塑性扩散连接和烧结锻造等陶瓷材料的超塑性加工方法,讨论了在陶瓷材料超塑性加工的实际应用中存在的问题和一些改善陶瓷材料超塑性加工性能的方法。

关键词：陶瓷超塑性成型烧结锻造扩散连接

Life Cycle Assessment on Real Time in a Coffee Machine

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Journal of Chemistry and Chemical Engineering 2014年第12期8卷 1142-1149页

作者： Jorge dominguez-Patino Antonio Rodriguez Martinez Rosenberg Javier Romero Israel Herrera Orozco Posgraduate School in Engineering and Applied Science FCQ1-CIlCAp Autonomous University of Morelos State Cuernavaca 62209 Mexico Research Centre of Engineering and Applied Science Autonomous University of Morelos State Cuernavaca 62209 Mexico Research Centre of Energy Environment and Technology Madrid 28040 Spain

The environmental impact during the preparation of coffee beverages was evaluated on real time. The functional unit is a cup of coffee prepared from 7 g of ground coffee and 125 mL of tap water. The boundaries system considered are assembly process, electricity process, tap water process, coffee process and municipal waste process. Based on boundary system, the life cycle inventory is carbon dioxide, 50.31 g; coal, brown, 53.72 rag; coal hard, 0.9906 g; dinitrogen monoxide, 0.9575 mg; natural gas, 0.0020 m^3; methane, fossil, 13.82 mg; oil, crude, 1.012 g; uranium, 15.02 ug. The life cycle impact assessment is determined using the sum of the contributions of the impacts shown in the inventory analysis, each one multiplied by a coefficient called the ＂characterization factor＂, which indicates the scale of the potential contributed by the individual substance to the effect. The results show the advantages of using the LCA （life cycle assessment） on real time as it provides information from both quality and environmental parameters allowing taking actions based on timely information. The preparation of a cup of coffee produced an environmental load of 50.9 g of CO2 equivalents and Non Renewable energy equivalents to 151 kJ; the sugar process and materials transportation were not considered.

关键词： LCA coffee cup real time

Case Report: Autoimmune Disease Triggered by Exposure to Hair Straightening Treatment Containing Formaldehyde

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Open Journal of Rheumatology and Autoimmune Diseases 2013年第1期3卷 1-6页

作者： James Dahlgren Rhett Roback Maria dominguez Vera Byers David Silver Edward Faeder Immunology Inc. Incline Village USA James Dahlgren Medical Santa Monica USA Srf Environmental & Health Management Inc. Diamond Bar USA UCLA David Geffen School of Medicine Los Angeles USA

Formaldehyde (FHO) is a multipurpose chemical that is an eye, nose, throat and skin irritant, sensitizer and allergen, as well as a class 1 human carcinogen. Brazilian hair treatments, containing high levels of FHO (up to 11%), have become regularly used that have the potential to expose clients to toxic levels in excess of current regulatory standards. We report on a patient who underwent a single hair treatment and subsequently developed an autoimmune disease. We review the relevant literature on autoimmune disease and formaldehyde exposure. Our case adds to existing knowledge and suggests that physicians ask their patients about commercial products that contain formaldehyde when diagnosing autoimmune conditions.

关键词： Formaldehyde Autoimmune Chemical Exposure Brazilian Blowout Hair Treatment

Heart Failure Issues and Management:A European Perspective

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Cardiovascular Innovations and Applications 2015年第B10期 19-27页

作者： Alberto dominguez-Rodriguez Julia Gonzalez-Gonzalez Carima Belleyo-Belkasem Pedro Abreu-Gonzalez Department of Cardiology Hospital Universitario de CanariasTenerifeSpain Facultad de Ciencias de la Salud Universidad Europea de CanariasLa OrotavaTenerifeSpain Departamento de Ciencias Médicas Básicas(Unidad de Fisiología) Universidad de La LagunaSanta Cruz de TenerifeSpain

Heart failure poses an increasing problem for global health care *** epidemiological data which have been accrued over the last 30 years have predominantly been accumulated from experience within North America and *** European experience in heart failure,although similar to that in North America,has recently demonstrated differences in hospitalization which may underlie the differences between health care system confi *** the predicted increase in the number of patients affected by heart failure,over the last 30 years a clear management algorithm has evolved for the use of pharmacotherapies,device-based therapies,and mechanical therapies,including left ventricular assist devices and cardiac *** the treatment of such patients has been clearly delineated in national and international guidelines,the underuse of all available and appropriate therapies remains a signifi cant *** purpose of this review is to provide a European perspective on management of heart failure.

关键词： heart failure Europe pharmacotherapies device-based therapies mechanical therapies

Increased postoperative complications after protective ileostomy closure delay: An institutional study

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World Journal of Gastrointestinal Surgery 2014年第9期6卷 169-174页

作者： Ines Rubio-Perez Miguel Leon Daniel Pastor Joaquin Diaz dominguez Ramon Cantero General and Digestive Surgery Department La Paz University Hospital

AIM: To study the morbidity and complications as-sociated to ileostomy reversal in colorectal surgery pa-tients, and if these are related to the time of closure. METHODS: A retrospective analysis of 93 patients, who had undergone elective ileostomy closure between 2009 and 2013 was performed. Demographic, clinical and surgical variables were reviewed for analysis. All complications were recorded, and classified according to the Clavien-Dindo Classification. Statistical univariate and multivariate analysis was performed, setting a P value of 0.05 for ***: The patients had a mean age of 60.3 years, 58% male. The main procedure for ileostomy cre-ation was rectal cancer(56%), and 37% had received preoperative chemo-radiotherapy. The average delay from creation to closure of the ileostomy was 10.3 mo. Postoperative complications occurred in 40% of the pa-tients, with 1% mortality. The most frequent were ileus(13%) and wound infection(13%). Pseudomembra-nous colitis appeared in 4%. Increased postoperative complications were associated with delay in ileostomyclosure(P = 0.041). Male patients had more complica-tions(P = 0.042), mainly wound infections(P = 0.007). Pseudomembranous colitis was also associated with the delay in ileostomy closure(P = 0.003). End-to-end in-testinal anastomosis without resection was significantly associated with postoperative ileus(P = 0.037). CONCLUSION: Although closure of a protective il-eostomy is a fairly common surgical procedure, it has a high rate of complications, and this must be taken into account when the indication is made. The delay in stoma closure can increase the rate of complications in general, and specifically wound infections and colitis.

关键词： Protective ileostomy Stomas Stoma-relat-ed complications Surgical infections Colorectal surgery

Analysis of Biomechanical Behaviour of Anterior Teeth Using Two Different Methods: Finite Element Method and Experimental Tests

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Engineering（科研） 2014年第3期6卷 148-158页

作者： Laura M. Bessone Enrique Fernández Bodereau Gabriela Cabanillas Alejandro dominguez Department of Clinical Prosthodontics Dental School National University of Cordoba Córdoba Argentina Materials and Technology Department FCEFyN National University of Cordoba Córdoba Argentina

The main objective of this study was to compare the results obtained with both virtual and experimental research methods, when the biomechanical behavior of teeth restored with esthetic posts was investigated. The finite element method was used to develop models of healthy maxillary canines and maxillary canines restored with definitive crowns and glass-fiber posts, quartzfiber posts, and titanium posts. Stress distribution was observed when external loads were applied. Load was applied in-vitro to analyse the fracture resistance of 48 maxillary canines restored in the same way as it was considered in the virtual method. The analysis of results using the finite element method led to the conclusion that restored teeth, in which the elastic modulus of the post was similar to that of the dentine and the material of the core had the best biomechanical performance. The experimental study validated the virtual analysis.

关键词： Compressive Strength Glass Fiber Posts Quartz Fiber Posts Finite Element Method

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简单AM调制器的软限幅电路

电子设计技术 EDN CHINA 2007年第12期14卷 122-123页

作者： Herminio Martínez encarna García Juan Gámiz Technical University of Catalonia BarcelonaSpain

用于示波器振幅控制的最常见电路之一是软限幅电路（图1α）。当输出电压VOUT（＋）低时．二极管D，和D2关断。因此，所有输入电流VIN（＋）／R1都流经反馈电阻R2，而输出电压为：

关键词：限幅电路调制器 AM 输出电压振幅控制反馈电阻输入电流示波器

Perforated duodenal diverticulum, a rare complication of a common pathology: A seven-patient case series

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World Journal of Gastrointestinal Surgery 2013年第3期5卷 47-50页

作者： Andrea Rossetti Nicolas Christian Buchs Pascal Bucher Stephane dominguez Philippe Morel Division of Visceral Surgery and Transplantation Department of Surgery University Hospital of Geneva Clinic for Visceral and Vascular Surgery

Duodenal diverticula (DD) are frequently encountered and are usually asymptomatic, with an incidence at autopsy of 22%. Perforation of DD is a rare complication (around 160 cases reported) with potentially dramatic consequences. However, little evidence regarding its treatment is available in the literature. The aim of this study was to review our experience of perforated DD, with a focus on surgical management. Between January 2001 and June 2011, all perforated DD were retrospectively reviewed at a single centre. Seven cases (5 women and 2 men; median age: 72.4 years old, rang: 48-91 years) were found. The median American Society of Anesthesiologists' score in this population was 3 (range: 3-4). The perforation was located in the second portion of duodenum (D2) in six patients and in the third portion (D3) in one patient. Six of these patients were treated surgically: five patients underwent DD resection with direct closure and one was treated by surgical drainage and laparostomy. One patient was treated conservatively. One patient died and one patient presented a leak that was successfully treated conservatively. The median hospital stay was 21.1 d (range: 15-30 d). Perforated DD is an uncommon presentation of a common pathology. Diverticular excision with direct closure seems to offer the best chance of survival and was associated with a low morbidity, even in fragile patients.

关键词： Duodenal perforation Duodenum Duodenal diverticulum Surgical management

Nitrogen/Ammonium Concentration Response of Vegetable and Flower Crops

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Journal of Agricultural Science and Technology(B) 2014年第4期4卷 261-266页

作者： Armando Hemandez-Perez Oscar Gabriel Villegas-Torres Martha Lilia dominguez-Patifio Martha Lilia dominguez-Patino Hector Sotelo-Nava Antonio Rodriguez-Martinez Luis Alonso Valdez-Aguilar Iria Alia-Tejacal Faculty of Agricultural Sciences University Autonomous of the State of Morelos Cuernavaca 62209 Mexico Faculty of Chemical Sciences and Engineering University Autonomous of the State of Morelos Cuernavaca 62209 Mexico EngineeringandAppliedScience Research Center UniversityAutonomous of the State ofMorelos Cuernavaca 62209 Mexico Department of Horticulture University Autonomus Agrarian Antonio Narro Saltillo 25315 Mexico

Nitrogen （N） is the element with the greatest influence on the growth of vegetables and ornamentals, however, form of delivery, either as nitrate （NO3） or ammonium （NH4＋） has different effects on plant development. The NO3 is the main form of N that plants absorb, but when it is the only source of N that has slight effects on root growth, no effects over enzymatic activities, and stimulates the absorption and translocation of cations within the plant. The NH4＋ is the easiest way of assimilation but is highly toxic when the only source or with respect to the concentration of NO3 is too high. To avoid toxicity, the NH4＋ must not exceed 20% of the total N amount in the formulation, however, it is important to consider the species, variety and environmental conditions. The N as supplied also affects the resistance or susceptibility of plants to diseases, but depends on the species and the type of pathogen.

关键词： Nitrate ammonium vegetables ornamental toxicity nutrition.