ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Education
Architecture and Urbanism
Public health
Research
Medicine / Sub specialtie
Biology
Economy
Social Sciences
Technology
Pure sciences
all records (75)

Languages
English
Spanish
Portuguese
German
French

Countries
Indonesia
USA
Brazil
Ukraine
South Africa
India
Canada
Poland
Denmark
Russia
all records (77)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (24)

Filter  
 
15.857  Articles
1 of 1.587 pages  |  10  records  |  more records»
In this paper, we will present the impact of the conditions in pressing chambers during the pressing of wooden briquettes. The conditions in pressing chambers can significantly impact the resulting compacting pressure required for the pressing of briquett... see more

Understanding thè supersonic jet interactions in a plenum chamber is essential for thè design of hot launch systems. Static tests were conducted in a small-scale rocket motor ioaded with a typical nitramine propellaiit to produce a nozzle exit Mach number... see more

The flow field in the supersonic mixed compression axisymmetric as well as two-dimensional intake have been investigated numerically. The flow characteristics, such as pressure, temperature, and velocity have been obtained. An enlarged chamber with a supe... see more

This thesis is focusing on how to reduce the NOx emission since it has been an issue in all over the world. An idea that reduced the combustion temperature by integrating an external chamber connected with the combustion chamber as a temporary energy stor... see more

This study aims to propose an analysis method for resolving the pressure response of a pneumatic brake circuit considering the effect of a transmission pipe. Pneumatic brake systems (PBS) are widely used in commercial vehicles. The pressure response chara... see more

Kegiatan  pemilahan pada aktivitas produksi merupakan salah satu kegiatan yang banyak dilakukan pada dunia industri. Penggunaan gravity settling chamber merupakan teknologi pemilahan partikel yang paling sedehana dan murah. Maka dalam perancangan sua... see more

Resultados de la capsulotomía Nd-YAG láser / Results of the capsulotomy Nd-YAG LASERResultados de la capsulotomía Nd-YAG láser / Results of the capsulotomy Nd-YAG LASERLa catarata es una de las principales causas de ceguera en todo el mundo y su extracción quirúrgica es la única terapia admitida como eficaz. Dentro de las complicaciones más frecuentes está la opacidad de la cápsula posterior del cristalino, ésta puede aparecer meses o años después de la cirugía. Ocurre entre el 20% y el 50% de los pacientes en un periodo de 5 años posteriores a la misma. La capsulotomía posterior puede realizarse mediante maniobras manuales con el instrumental tradicional, o con láser, siendo este último la modalidad habitual en la época actual; por estas razones se realiza esta investigación, para conocer los resultados obtenidos después de la capsulotomía con láser en los pacientes operados de catarata por la Técnica Blumenthal en el Hospital Universitario Abel Santamaría Cuadrado, en Pinar del Río (Cuba), durante el periodo junio 2007-mayo 2008. Para ello se tuvieron en cuenta las variables: edad, sexo, implante o no de lente intraocular, complicaciones trans y post láser, así como agudeza visual pre y post tratamiento. El 80.2% de los pacientes estudiados tenía >60 años de edad y en un 96,8% se colocó lente intraocular en cámara posterior. El 65.9% de los ojos presentó elevación transitoria de la presión intraocular y sólo en un 3.2% hubo astillamiento del lente intraocular sin necesidad de extracción. Las complicaciones no cobraron importancia si se considera que el 93.2% de los ojos alcanzó una agudeza visual >0.7. Palabras clave: catarata/complicaciones, pacientes.ABSTRACT Cataracts are one of the main causes of blindness all over the world and its surgical removal is the only effective therapy admitted. The opacity of the posterior capsule of the lens is the most frequent post-surgical complication. This may appear months or years after surgery and is present in 20-50 % of the patients after 5 years of their surgical intervention. The posterior capsulotomy may be performed by means of manual procedures using the traditional instrumentation, or by means of laser; the current technique nowadays. Showing the results after laser capsulotomy in patients operated by the Blumenthal Technique (2007-2008) at "Abel Santamaria Cuadrado" University Hospital, in Pinar del Rio Cuba was the purpose of this paper. Age, sex, implant and non- implant of the intraocular lenses (IOL), complications during trans and post laser therapy, as well as the visual acuity before and after treatment were the variables considered, all patients were older than 60 years (80, 2 %) and in 96, 8 % an intraocular lens was placed into the posterior chamber, 65.9 % of the eyes showed transient increasing of the intraocular pressure, and only 3, 2 % showed splintering of the IOL, but needing no extraction. Complications were not so important if it is considered that 93, 2 % of the eyes reached to a visual acuity > 0, 7. Key words: cataractc/complications, patients.

ABSTRACT Cataracts are one of the main causes of blindness all over the world and its surgical removal is the only effective therapy admitted. The opacity of the posterior capsule of the lens is the most frequent post-surgical complication. This ma... see more

Aim of study: Novel configurations of separation chamber are proposed to resolve the critical issue of separation in agro-industrial equipment.Area of study: Dept. of Mechanical and Biosystems Engineering, Urmia, IranMaterial and methods: Precise and inst... see more

In order to study and practice the method of meteorological atmospheric pressure gauge calibration, the design, assembly and calibration of an experimental wireless atmospheric pressure gauge based on the BMP280 digital pressure sensor and the System on C... see more

1 of 1.587 pages  |  10  records  |  more records»