"LED LIGHTING

Light emitting diodes, or LEDs, are becoming increasingly popular and more high-quality LED lighting products are being manufactured and sold in the marketplace.  LED lighting is an attractive alternative to incandescent or fluorescent lighting in both residential and commercial lighting applications because they are very energy-efficient, have very long lives, are very small in size, do not have any re-strike time, can be dimmable, generate relatively little heat, have a slow failure rate, are shock resistant, work well in low temperatures, their light can be easily focused, and they contain no toxic mercury unlike today’s popular energy-efficient lighting product, the compact fluorescent light bulb (CFL).  Here are 10 things that you should know about this newly-emerging light source.
1.    Colored and White LEDs  LEDs can be red, green, blue, or amber.  The color emitted by an LED is dependent upon the materials used to produce it.  For example, a red LED is made from the chemical elements of aluminum, gallium, and arsenic.  White LEDs are created by covering a blue LED with a yellow phosphorous coating.  A white LED can also be created by using a red, blue, and green LED in close proximity to each other.  At this time, there is not an LED that can emit white light.  Producing an LED that could emit white light is the “holy grail” of LED light research.
2.    LED Brightness  A single high power LED can produce about 80 lumens of light.  In comparison, a standard 60 watt incandescent light bulb produces about 900 lumens.  Thus, a single high power LED is only about 1/11th as bright as a 60 watt incandescent light bulb.  In order to produce adequate lighting, therefore, an LED fixture must contain groups of LEDs.  However, the future is bright, pun intended, for LEDs.  The lumen output of LEDs has almost doubled in the last two years.
3.    LED Color Temperature  Color temperature is a measure of the color appearance of a light source which helps describe the apparent “warmth” (reddish) or “coolness” (bluish) of that light.  Light sources below 3200 Kelvin (3200K) are considered to be “warm;” while those above 4000K are considered to be “cool” light sources.  For comparison, a traditional household incandescent light bulb is 2800K.  The color temperature of a light source is not related to how hot the light source will get or how much heat is given off by the light.  White LEDs vary in color temperature.  Some white LEDs can be as “warm” in appearance as 2600K but most white LEDs are slightly “cool” in appearance.  This is because most white LEDs are created by putting yellow phosphors over blue LEDs.
4.    LED Color Rendering  Color rendering index (CRI) is the ability for any light source to render colors accurately.  The CRI scale goes from 1 (low pressure sodium) to 100 (the sun).  A CRI of 75 is considered to be good, a CRI of 85 is considered to be very good, a CRI of 95 is considered to be excellent, and, of course, a CRI of 100 is considered perfect.  LEDs in a warm white color temperature are currently available with a CRI of 80.
5.    LED Efficacy  As with all light sources, the efficacy of LEDs is measured in lumens/watt, the amount of light produced by one unit of power.  Warm white LEDs produce between 25-44 lumens/watt while cool white LEDs are more efficacious by producing 47-64 lumens/watt.  In comparison, the typical household incandescent light bulb creates 10-18 lumens/watt while compact fluorescent light bulbs produce 35-60 lumens/watt.
6.    LED Drivers  Fluorescent light bulbs require a ballast in order to function.  The ballast provides a starting voltage and limits the electrical current to the light bulb.  LEDs also require a similar electronic power source.  For LEDs, this electronic power source is usually called an LED driver.  The LED driver converts line power to the appropriate voltage (usually between two and four volts DC for high-brightness LEDs) and current (typically 200-1000 milliamps or mA), and may also include dimming and/or color correction controls.  LED drivers are generally about 85% efficient.  Thus, the efficacy of LEDs should be reduced by 15% to account for the LED driver.
7.    LED Heat Generation  It is a myth that LEDs do not generate heat.  In fact, all light sources generate heat and LED lights are no different.  Thus, it is important that an LED fixture is well-designed with “heat sinks” to adequately dissipate the heat that is created.
8.    LED Lifespan  LEDs do not burn out like an incandescent light bulb.  Instead they get progressively dimmer over their lifetime until they no longer emit enough light to be useful.  An LED is generally considered to be no longer useful when it is emitting only 70% of the original amount of light the LED produced.  The time that this takes is often referred to as the “rated life” of an LED.  While some LEDs may have a rated life of 100,000 hours, this is usually only under perfect laboratory conditions.  Under real-world conditions most LEDs operating in light fixtures might last up to 60,000 hours.  The rated life of an LED is often much less when the LED is operating in a light fixture as opposed to the same LED operating outside of a light fixture due to the buildup of heat inside the fixture.  The typical LED inside of a typical light fixture may have a rated life of 35,000 to 60,000 hours.
9.    OLED  An OLED is an organic light emitting diode.  It is an LED that also contains carbon.  OLEDs are generally manufactured as flexible lightweight sheets.  Today, OLEDs operate at significantly lower efficiency than inorganic (crystalline) LEDs.  OLEDs typically generate less light per area than inorganic, solid state LEDs, which are usually designed for use as point-light sources.
10.    Infrared and UV Radiation  White LEDs do not emit infrared, or heat, radiation like an incandescent light bulb.  In addition, white LEDs do not create ultraviolet radiation (UV rays) like a fluorescent light bulb.
Although there has been a lot of media attention given to LEDs, there are still far too many LEDs that are not well-designed.  In short, the LED lighting market is still maturing.  Research continues to improve LED brightness, efficacy, and the rated life of LEDs at a remarkable pace.  However, in the short-term be cautious when selecting an LED lighting fixture."

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Commercial Cleaning Service MONTREAL

WHO ARE WE?
Menage total was in residential and commercial cleaning services industry since 2010. During all these years of practice, we have built a solid foundation. Our mission is to provide home cleaning services and high-quality household help to large regions of Montreal moreover than selecting the best cleaning products. We know that your home is precious to you our residential cleaning service is built around the idea of providing you discretion and reliability. All this means that our housekeeping team, committed and motivated, will serve you for a long term. As well as the company that will be present all the time to bring you all the support and confidence you need.cleaning service company
RESIDENTIAL CLEANING
COMMERCIAL CLEANING
CARPET CLEANING
WINDOWS CLEANING
FLOOR AND STRIPPING SERVICES
DAYCARE AND CPE SERVICE
WHY MENAGE TOTAL ?
Although very unlikely, if you are not satisfied with the results, you can simply contact Menage Total and receive a re- clean. We will examine the scene to determine the reason for customer dissatisfaction and if cleaning (housekeeping, maid) could have been done better. Keep in mind that you must contact us about this issue as quickly as possible so that we take immediate steps to resolution.  montreal cleaning services

AS CONSEQUÊNCIAS DA EJACULAÇO PRECOCE NO HOMEM

É entendido pelos terapeutas sexuais um problema quando, o que era pra ser um ato prazeroso, acaba gerando frustraço. Se ocorreu, porém poucas vezes, no é o suficiente para ser diagnosticado como um quadro de ejaculaço precoce. Ela só se comprova quando a situaço é recorrente na vida do homem.
Para quem sofre sempre com os sintomas da ejaculaço precoce, consegue perceber a disfunço mesmo durante a masturbaço. Isso pode provocar prejuízos sérios na qualidade de vida, ao arruinar a vida sexual e colocar a segurança e autoestima em relaço ao potencial de masculinidade no cho. No é a toa que o problema está sendo tratado por organizações como um caso de saúde pública.
A ejaculaço precoce, para muitos casos, pode contribuir para o desenvolvimento de outras disfunções devido à fatores psicológicos. Há casos daqueles que no procuraram por avaliaço médica ou tratamento eficaz que acabaram por obter quadros de impotência sexual, nestes, a relaço nem mesmo acontece.
AS 5 PRINCIPAIS CAUSAS
Biologicamente e fisiologicamente falando, o momento da ejaculaço é dividida em duas partes. A primeira acontece quando o sêmen é expulso da próstata, vesícula seminal e canal ejaculatório para a uretra. A segunda parte é quando o líquido se dissipa pela uretra até o orifício da cabeça do pênis, é nela que ocorre o orgasmo. Em homens que possuem a disfunço, o processo todo acontece muito rapidamente.
Essa aceleraço do processo de ejaculaço tem várias causas, que podem ser psicológicas, orgnicas ou reflexo de outros problemas de saúde presentes no corpo como alterações do fluxo sanguíneo e presso arterial, por exemplo.
Confira aqui todas as principais causas da ejaculaço precoce, mesmo as que acontecem em casos isolados:

1. ANSIEDADE E ESTRESSE
Uma das causas mais comuns para o desenvolvimento deste problema. O estado de humor dificulta o controle da ejaculaço na hora do ato, isso somado a fatores como presso social, baixa autoestima e falta de intimidade com a parceira, só torna o nervosismo mais intenso ainda.
Aquele que tem um mal desempenho sexual, mesmo que seja casos isolados, tem mais chances de sofrer com ansiedade na próxima relaço criando um ciclo vicioso que acaba por destruir a vida sexual de muitos homens.
Esta situaço pode-se perceber com maior frequência em jovens inexperientes, neles, o medo e falta de amadurecimento sexual os impedem de ter o controle sobre o corpo e consequentemente durante a ereço.
Quem comanda todo o processo é o sistema nervoso central. Tanto a urina quanto a ejaculaço so controladas pelo esfíncter uretral externo. O nervosismo faz com que o esfíncter relaxe involuntariamente, resultando ento em uma ejaculaço mais rápida.
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Muitos médicos consideram a ejaculaço precoce uma disfunço erétil de ansiedade devido a recorrência e presença deste fator na maioria dos casos de quem sofrem com problema.
O estresse, por sua vezes, é o maior causador de casos de ejaculaço precoce separados, ou seja, em casos isolados. Lembre-se que depois de um dia estressante, se tem grandes problemas no seu relacionamento ou está se sentindo preocupado este no é o melhor momento para ir para a cama com ninguém. Procure relaxar antes.
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2. HIPERSENSIBILIDADE NA GLANDE DO PÊNIS
Uma das causas da ejaculaço precoce em homens adultos é a hipersensibilidade no pênis, particularmente na regio da cabeça. Nestes casos, acontece a ejaculaço mesmo depois da menor estimulaço sexual. Viagra master funciona mesmo
Para diagnosticar o caso é preciso de avaliaço médica, na qual sero feitos testes que avaliem a sensibilidade da regio. Geralmente é usado um aparelho chamado bioestesiômetro que consegue medir a sensibilidade do pacientes. Pequenos sinais vibratórios so enviados para medir o tempo de resposta do pênis.
Você também consegue fazer o exame em casa, ao passar de leve os dedos sobre a regio quando tiver uma ereço. Se a sensibilidade for muito grande sentirá ondas de prazer pelo corpo e falta de controle sobre a possibilidade de uma ejaculaço.
3. BAIXO FLUXO SANGUÍNEO
A diminuiço do fluxo sanguíneo na regio peniana é um problema frequente com avanço da idade. A falta de circulaço nas artérias cavernosas acabam resultando na ejaculaço precoce secundária. Diferente das anteriores, que so chamadas de primária, esta acontece pela dificuldade de manter ou até mesmo alcançar uma ereço. Com isso, o organismo responde tentando buscar o prazer de forma mais rápida.
Em muitos casos o pênis no chega nem a enrijecer totalmente e a ejaculaço já ocorre. Estes problemas podem ser considerados como disfunções eréteis ou impotência sexual.
A alteraço na capacidade de ter ereções duras pode ser uma consequência da variaço de presso, que tem reflexo na corrente sagúinea. Pessoas com colesterol alto, presso baixa ou que sofrem de hipertenso tem maiores chances de desenvolver o problema.
4. FATORES BIOLÓGICOS
Há uma parte da comunidade científica que defende a possibilidade de fatores biológicos interferirem na capacidade do homem em conseguir retardar a ejaculaço. Essa teoria veio de pesquisas que mostram como o problema é recorrente em famílias que já sofrem do problema.
Apesar da possibilidade, ainda no se sabe se o fator biológico pode ser de fato considerado como uma forte influência ou no para o desenvolvimento da condiço. Mesmo que haja, existe a possibilidade de tratamento para conseguir melhorar o tempo de duraço da relaço sexual.
5. ALTERAÇO DOS NÍVEIS HORMONAIS
As alterações dos níveis de hormônios masculinos podem provocar a ejaculaço precoce. A pequena alteraço também acontece nas maioria dos casos, mesmo que acompanhada de outros fatores como estresse e ansiedade. Viagra master
Os hormônios que precisam ser monitorados por meio de exames de sangue so os da testosterona, responsáveis pela maturaço dos órgos sexuais masculinos e desenvolvimento de libido (a vontade de fazer sexo) e os hormônios da tireoide – substncias responsáveis pelo equilíbrio do humor no corpo.
Para esta causa da ejaculaço precoce o tratamento eficiente depende da reposiço hormoney al ou regulaço dos níveis por meio de técnicas naturais e sem efeitos colaterais,como transformações alimentares.

The art of making candles has been around since primitive times

The art of making candles has been around since primitive times. Of course, as time went by they become much different in design than what they were back then. In the early days, candles were a necessity for heat and light. Today they serve as decorations, wonderfully smelling mechanisms in our homes, and offer light for romantic dinners and baths.

The first known use of candles is not completely known. The remains of clay candle holders that date back to 4 BC have given us the knowledge that they have been in use for a very long time. Those clay candle holders were found in Egypt.

Candles were also used in ancient times in both China and Japan. These candles were made of wax extracted from insects and seeds. The taper candles of India were made from the wax extracted from boiled cinnamon. Candles are not known to exist in American until 1 AD. It is believed Native American’s burned oily fish and the back of the Cerio tree. When settlers came to New England, they used similar techniques to extract wax from bayberries. Many modern candle makers still use that process to make bayberry candles. However, it is quite expensive to do so.

Tallow was the product used to make candles in the 1600’s and 1700’s. This is a byproduct from animal fat. The product worked well but had a foul odor, especially when it was burning. Bees wax and paraffin wax both were introduced in the early 1800’s, and tallow stopped being used.

The dipping process for taper candles as we know it today began in 13 AD. Traveler merchants went door to door from town to town. While there, they made taper candles for individuals in their homes. Around 15 AD the idea to use molds for various types of candles was introduced in Paris. While this greatly improved the candle making process, there were still issues with getting the candles to burn properly.

In the 1800’s, candle makers felt the wick was the weakest area of the candle as well as the cause for defective burning patterns. A braided wick was developed in 1825 that seemed to greatly improve the burning of several types of candles. By 1830, a process was in place to make candles using paraffin wax and molds. These candles were of good quality and burned well.

As gas and electricity were introduced, the candle making process continued to evolve. It became much easier and faster to melt the paraffin wax. It is believed that the reason so many of the elements of candle making stayed the same, including the hand dipping process is because the popularity of candles diminished with the introduction of electricity.

Today, candle making is a well known art form. There are many companies who manufacture wonderful candles with some very unique fragrances. There are also small businesses that still make their candles by home in their kitchen. Candle making is a great hobby and fun activity for the whole family to be involved in.

Candles are now used more for luxury and pleasure than for light or heat. The candle industry continues to grow with new types of candles being introduced all the time. The amount of colors, fragrances, and types of candles to choose from in the marketplace is absolutely amazing.

Candles are a very common home decorating item. They are used to accent any room in your house. They are a common centerpiece for dinner parties and formal occasions. The unity candles that are presided over at many weddings hold a deep sense of tradition in the American culture.

The art of making candles has definitely changed over time. If you are interested in trying your hand at it, choose a candle that is fairly easy to make such as the container candle or the votive. This will allow you the chance to get used to the process. There are several good candle making kits available for a low price as well as books to give you tips and assistance along the way.