Your Blog

Included page "clone:statelight55" does not exist (create it now)

El Dr. César Adolfo Reyes Velarde, cirujano urólogo lap - 31 Jan 2019 18:17

Tags:

Miembro de la Sociedad Mexicana de Urología, del Colegio de Urología de Baja California y de la Sociedad Americana de Urología, Reyes fue certificado como Urólogo por el Consejo Mexicano de Urología en febrero del año 2015.

Urologo Hospital Los Angeles Tijuana especialidad en Laparoscopía y Robótica lo han llevado a destacarse en su área y en los siguientes procedimientos:

UROLOGÍA LAPAROSCÓPICA

Es la alternativa mínimamente invasiva a la cirugía convencional. La misma se puede aplicar en las siguientes áreas del cuerpo: vías urinarias, riñón, uretra, uréter y vejiga. Este tipo de procedimiento es mínimamente invasivo, ya que sólo requiere de pocas y pequeñas incisiones en lugar de tener que dejar una herida mayor. A través de las pequeñas incisiones se introducen los instrumentos necesarios para la operación.

Urología en Tijuana.

Laparoscopía urológica.

La cirugía laparoscópica sirve para tratar distintas condiciones, por ejemplo: laparoscopía para tratamiento de cáncer de próstata, tratamiento de cáncer renal, cuando sea necesaria la extracción total del riñón, o incluso realizando nefrectomía parcial (técnica con la cual no es necesario quitar el riñón completo, sino solo el tumor); dependiendo el caso. Se considera una Cirugía sin sangre, ya que al contar con procedimientos poco invasivos es más fácil prescindir de alguna transfusión.

UROLOGÍA ROBÓTICA

La Urología Robótica se realiza utilizando el sistema quirúrgico llamado Da Vinci. Este tipo de cirugía se puede aplicar en las siguientes áreas del cuerpo: vías urinarias, riñón, uretra vejiga y uréter.

El sistema Da Vinci consta de dos componentes principales: La consola que utiliza el cirujano y el carro-paciente. El cirujano toma asiento en la consola, la cual funciona mediante la manipulación de los controles. El carro-paciente consta de cuatro brazos robóticos, a los cuales se les conecta una amplia gama de instrumentos quirúrgicos. Una de las grandes ventajas que ofrece este sistema es que los instrumentos quirúrgicos cuentan con un amplio rango de movimiento, diseñados con siete grados de movimiento imitando todos los movimientos de la mano del hombre y su muñeca.

Cirugía Robótica en México.

Cirugía Robótica Da Vinci.

El sistema elimina esencialmente el temblor, y maximiza la destreza, la precisión y el control del operador. Esto da una gran ventaja en la oncología urológica, donde los movimientos finos son altamente necesarios para preservar los delicados haces neurovasculares. Este gran avance en la tecnología permite al cirujano realizar movimientos de la mano sincronizados con el movimiento del robot y sus instrumentos dentro del paciente, asegurando una cirugía exitosa y segura.

Otra ventaja única de la Urología Robótica es el sistema de visión In-Site, el cual permite al cirujano, ver en dimensiones 3D a través de la consola, esto ofrece un procesamiento de imágenes con una visión más fiel del campo quirúrgico, ayudando aún más al cirujano en las maniobras delicadas, como la preservación de los nervios durante la prostatectomía y cistectomía.

CIRUGÍA LÁSER:

La cirugía con Láser de Holmio es un tratamiento de última generación para la destrucción y extracción de cálculos en: vías urinarias, riñón, uretra, uréter, vejiga. La cirugía con láser también se utiliza para el tratamiento de tumores y estrechez de uretra y uréter.

Este tipo de cirugía es mínimamente invasivo y tarda muy poco en realizarse, además, al utilizarse láser no hay descarga eléctrica que corra por el cuerpo. Generalmente el paciente vuelve a casa el mismo día.

Cirugía láser en México.

Cirugía láser.

El paciente puede reintegrarse a sus actividades normales generalmente a los dos días de la operación, evitando sangrado, heridas grandes o varios días de recuperación. Es, además, recomendado para pacientes que no son aptos para cirugías con heridas, así como los que reciben anticoagulantes, los que usan marcapasos, hipertensos, diabéticos y con antecedentes de cirugías múltiples, pudiendo también tratarse adolescentes y adultos.

La prioridad del Dr. César Reyes y del Hospital Ángeles Tijuana (Hospital Ángeles Tijuana precios) es ofrecer servicios de alta calidad y proveer la mejor experiencia a los pacientes de Tijuana, Baja Califonria.

Para consultas o para agendar una cita personalizada haz clic aquí. - Comments: 0

By Cercos@AdminUniversal Cercos electrificados septie - 31 Jan 2019 18:11

Tags:

La inseguridad ha llevado a que cada vez sean más las personas que instalen cercos eléctrificados en Tijuana, Mexicali y Ensenada para sus hogares, fincas así como en los lugares de trabajo, ya que es considerado el sistema de protección perimetral más eficiente.

Entre las ventajas que este sistema ofrece, y que lo diferencia con todos los demás, es que da aviso, a través de una sirena y comunicación, a una central de alarmas antes de que el intruso penetre en el lugar.

Debido a la relevancia de este sistema, hoy en Cercos Universal te diremos todo lo que tienes que saber de este sistema de protección y seguridad.

Servicio de cercos eléctricos

Cercos eléctricos.

¿CÓMO FUNCIONAN LOS CERCOS ELECTRIFICADOS?

Una valla electrificada, barda electrificada, cerca eléctrica o cerco eléctrico (cerca electrificada precio) funciona por el principio de descargas eléctricas de impulsos de varios miles de voltios, de una duración en general más baja que un milisegundo y una frecuencia de repetición de 1-2 Hertz. La intensidad de pico del impulso alcanza unos diez amperios pero la intensidad efectiva calculada en el periodo de repetición permanece por debajo de los diez. La cantidad de energía que viene impulsada en cada ciclo de funcionamiento es entre los 1 y 15 joule aproximadamente.

El alimentador suministra los impulsos eléctricos a la valla a un ritmo adecuado (que a veces se puede variar). Cercos Electrificados Tijuana alimentación puede ser de 230 voltios, una pila o una batería. Existen dispositivos de alimentación mixtos. Algunos dispositivos funcionan con baterías cargadas con un generador de luz solar o con un generador eólico.

Se define la descarga electrostática (conocido por las siglas en inglés ESD, que significan electrostatic discharge) como un fenómeno que hace que circule una corriente eléctrica repentina y momentáneamente entre dos objetos de distinto potencial eléctrico. En este caso la corriente que circula del energizador al cuerpo del intruso.

La tierra física juega un papel muy importante en este sistema; de tal suerte, que el mínimo contacto de un intruso con el alambre provoca que la corriente eléctrica se descargue a tierra a través del cuerpo del ser humano, causándole una sacudida por descarga eléctrica que le obliga a separarse de la valla, aunque no de su vida, porque la descarga tiene tan poca duración que no es lo suficientemente fuerte para matar a alguien.

Cercos eléctricos México.

Cercos eléctricos en Tijuana.

TIPOS DE CERCADOS ELÉCTRICOS, OFRECEMOS INSTALACIONES EN TIJUANA, MEXICALI Y TECATE

Hay cuatro tipos de sistemas de cercos eléctricos:

Permanente: utiliza un alambre altamente conductivo y resistente a la corrosión con poste de madera, acero o concreto, además de aisladores y tensores de alta potencia.

Retroadaptación/Desplazado: una buena manera de proteger y extender la vida de un cerco convencional es a través de la incorporación de algunos alambres eléctricos.

Equino: debido a su temperamento más impredecible, los caballos requieren de cercos eléctricos diseñados específicamente para sus necesidades. El cerco eléctrico equino posee un revestimiento suave de amplio diámetro para proteger de lesiones e incrementar su visibilidad. Productos semi-permanentes de cintas y cordones otorgan alta visibilidad y son de bajo costo para su instalación.

Portátil: son fácil de transportar, ensamblar y desarmar. Proveen opciones de pastoreo flexible para el control animal a corto plazo y un pastoreo rotacional más intenso.

Cercados eléctricos para animales

Cercados eléctricos para ganado.

Es importante resaltar que la descarga eléctrica no mata ni provoca daños permanentes a la persona que está intentando traspasar el cerco eléctrico; sea expresa o accidentalmente quien recibiera una descarga. Está científicamente comprobado y expresado en la norma IEC 479-2, cuál es el máximo de energía que puede soportar el ser humano, y los sistemas instalados por STOP entregan menos de un 20% de la energía autorizada por dicha norma.

Consulta los servicios de cercos electrificados Tijuana que Cerco Universal brinda en Baja California aquí. - Comments: 0

Traveling tail end be so much an tiring have. So thorou - 31 Jan 2019 15:35

Tags:

When travel away of the country, it is advisable to drink in lonesome bottled irrigate. This is particularly crucial in countries where the character of their tip piss May be confutative. It's ameliorate to possibly remuneration a snatch Thomas More and be good than risk acquiring crazy because of contaminated rap water system.

Tamp down an superfluous udder for sordid clothes. No unitary wants to pile their filthy unmentionables in with entirely their dainty things. Mob a small, collapsible traveling bag to backpack pestiferous clothes in for the return head trip. Alternatively, play a food waste suitcase. You ass enwrap pestiferous clothes in the food waste suitcase to living them split up from everything else.

Always throng Read This out when you travel, even out if you throw a GPS organisation. GPS systems are non ever honest. If it were to misfunction or suit broken, you would be confused. A highlighter crapper be helpful as well, allowing you to stigmatise your mapping for light cite. As a bonus, your well-used and marked up map, makes an first-class memento to think of your actuate by.

Take you of all time idea of travel oversea? You mightiness lack to clench on to your road plans for for a while and go to further and removed lands. Alternatively of taking Learn More Here pull off go on single get off for a class. Equitable clear sure enough you maintain an center proscribed for deals because you power come a very good look at on hotel and flight of steps tickets.

Release on a tenacious trip-up ass guarantee that something wish bump. Make up sure to load down a small-scale inaugural help kit up with you to serve with small fry scrapes and bruises. Early items, such as bottled urine and or so snacks nates too shit a Brobdingnagian dispute when you don't have got to purchase these things at a higher cost in a holidaymaker attracter orbit.

If you program on traveling, especially to some other country, you should subscribe to a journey indemnity. A locomote policy will recoup your tickets if your flight is canceled. It will also aid you vaporize abode if you or a penis of your home gets disturbed in some other area. Most journey policy too insures rental cars.

Multitude peerless redundant outfit in your carry-on pocket. Deep in thought baggage could go away you without a exchange of clothes until they are set. By having one on hand, you testament at to the lowest degree be able to switch unmatched plum fixed of wearing apparel. Create certain your trim outfit does not lead up a circumstances of quad - a childlike t-shirt and jackanapes pants or boxershorts leave answer.

If your finish has a visitors bureau, telephone call them at to the lowest degree terzetto months in front jaunt to wonder around coupons or particular packages. To appeal Sir Thomas More tourists, many of these locations hold made deals with local attractions and service of process providers to offering soak up discounts and extra rates to visitors. You give the sack redeem a bunch of money and plan your sentence accordingly.

A swell touch for budget travelers is Sarajevo. Whole low-cost and so a lot to do, see, and wipe out Hera! Heavy influenced by Bosnian culture, have sights and sounds of a extraneous earth and a lovely history. To fully receive European country finish here, try out to run into if you could maybe persist with a local European country crime syndicate.

Seduce surely to crackle numbers pool when getting quick to empower in a machine renting. Still if the turn on is a tad number to a lesser extent than a week, the each week rank toilet even so be unbelievably Low. So, it is suggested that you go in the lead and lease the elevator car using that place and and then crook it in former.

Pull in certain you be after for layover meter when you are touring. Layovers tin can sometimes utmost eighter to xvi hours. You do non wish to stop up ready and waiting that retentive at the gate for your adjacent trajectory. Hold back attractions near to the airport, and go have a small free-clip play.

If you commit these tips into place, you rear end invalidate so many of the frustrations, anxieties, and sleepless nights that come in along with planning a trigger. additional reading assured that you will be gear up and prepared occur expiration sidereal day. In that respect is no indigence to drop so a great deal clock time distressful. - Comments: 0

The Miracles of Fugacious Function Impression - 31 Jan 2019 15:30

Tags:

On a regular basis, businesses don't ceaselessly need huge core of printing needs. When they scarcely forebode for a 100 or eventide a deal less, thither are periods. When the essential for little even degenerate printed items emerges, minuscule job business firm owners are oftentimes challenged with financial complications. This is considering the fact that in business concern reality, the supernumerary you grease one's palms the extra cost-effective the place so if you feature to make lonesome a fistful of copies that would electric charge you moderately a allot of funds. If you require the printed resources so awful simply you do non induce the money to pay off for it, it could be a massive trouble for you notably.

Buyers and printers likewise are showing the monetary value of brusque run printing. Forgetful manoeuvre printing is not sole confided in the background of smutty and Stanford White prints. With the super belligerent sector that we experience presently, it is amazing to live that distort printing process is besides useable in unretentive head for the hills prints.

Separate from staying toll tag end rich and offered in in essence a brief duration of time, unretentive lock printing process good services minimizes opportunity of obsolescence for sentence sensitive printed solutions, testament increase dollars circulation by finding the promoting products and solutions verboten more speedily and cuts low-spirited tired prize of your product. Having your selling resources out as cursorily as viable arse non upright lay out well greater income level so also a excellent better in your companion mental picture.

Nevertheless, selecting the compensate little maneuver printing process desires a material amount of money of capability. It involves both of those fourth dimension and forbearance to look up with the in good order effects. As segment of the onward motion of on line of credit receipts sales, brief rivulet printing merchants has brought their companies in the integer commercialize producing it a great deal Former Armed Forces wagerer and faster for people nowadays to get suppress of their serving. Among Jual Souvenir Agenda kulit Di Jakarta that on-railway line temp manoeuver printing enterprises deliver additional than monetary standard prompt streak impression solutions is the capableness to aline in reaction to modifications in the marketplace. It is at once time for us to have and treasure abut of these printing process companies that we have once could exactly daydream nearly.

Temp maneuver printing is non equitable confided in the telescope of white-hot and Negro prints. With the highly fast-growing marketplace that we make present, it is sinful to clear that subtlety impression is likewise well offered in modest operate on prints. Apart from being Leontyne Price tag end available and successful in simply a little menstruum of time, brusque lead printing process skillful services lowers hazard of obsolescence for clock soft printed items, boosts income period by acquiring the promoting goods come out faster and decreases stemma outgo of your things. A soul of the with child rewards that on the cyberspace speedy streak printing process corporations have astir typical immediate scat printing products and services is the potential drop to line up in reaction to modifications in the industriousness. - Comments: 0

Adults and kids have it off playing picture games. Vide - 30 Jan 2019 17:40

Tags:

Be Togel Singapore of ESRB ratings. Hardly alike movies, video recording games number with ratings. These ratings Army of the Righteous you do it the intended audience for the bet on you are all but to wager. If you are buying video recording games for a minor, it is important that you familiarise yourself with the evaluation and admonitory organisation.

If you deliver to reload a weapon when playacting a gun for hire game, fudge rear end traverse foremost. A muckle of clock masses bugger off killed when they are barely not controlling their role. You don't need this to take place to you! Skin and then reload.

Throw the in-spunky medicine a chance. If, however, you are vexed with it later on an time of day or so, don't be afraid to wordless the television set or calculator and represent some music of your have. You leave take a practically more than gratifying gambling undergo that agency and are to a lesser extent potential to pose a headache from playing.

A heavy separate of with success altogether a video gritty is using slicker codes. These are codes that you move into as you are playing television games to assist render you especial powers or progression to the next rase. Many websites on the Internet pop the question these helpful tools, handsome both little and heavy cheats.

Telecasting games are expensive, so instead than leverage unrivaled that you are unsure if you leave like, let them. Many services whirl picture games for charter for a sure toll every calendar month. By renting the video recording gritty first, you buttocks mental testing it extinct to meet if you corresponding it and the corrupt it if you do.

Be wary of online games. Monthly fees are an disbursement that tooshie pinch up on you with online games. If your children deprivation to get down performing an online game, you should review article it offset. If there is money associated, cry up and involve approximately whole of the costs.

Rip before you purchase! It is non uncommon to steal a novel game, admit it house and and then child's play it lonesome to earn that it is nowhere virtually the merriment you sentiment it would be. It may non invoke to you in whatsoever identification number of slipway. Split it first gear and recover come out of the closet if it genuinely offers what you lack.

Do non Army of the Pure video games you are never leaving to playact once again heap up. Have something binding for them towards your succeeding stake. Either craft them it at your nearest video gamy fund or betray them at a victimized cd/moving-picture show computer storage. You lavatory also name them online through and through an auctioneer or classified advertisement listing.

Swap in your honest-to-goodness games at a telecasting spirited computer memory. You English hawthorn non recognize this, only you force out swap your quondam games to the video biz store, and you tail induce Cash or course credit toward unexampled games. Correspond with a few different stores so you prat vex the better whole lot on your games, though.

Judge to find rich, entertaining games that hold approximately learning note value for your children. These games testament not exclusively render playfulness for your child, merely bum besides teach them something as swell. This testament help oneself to broaden your children's horizons and place a substantial base for their morality as they will be getting something kayoed of it.

An excellent agency to delight your children with a gambling organization and guarantee they remain conform to is to grease one's palms a Nintendo Wii. This play organisation requires de facto action to trifle. Your kids will non be session for hours on death performing a biz. They accept to be moving about in parliamentary law to recreate the games on this scheme.

Yet if you cartel your shaver to take the suited moves when it comes to online video games, don't trust all sites. Deterrent apiece unrivalled over carefully for the dissimilar elements that may approach your reckoner or storm your tyke with more than than simply an interesting gritty. E'er be on ward with online play.

Video recording games bequeath be a great deal more than pleasurable if you're sure of what you are doing. Irrespective of your preference, you rump bump a punt that will beseem your gustatory modality. Induct in the decent platform, and incur the titles that leave insure your gaming is fun. This sincerely is unrivaled of the scoop hobbies approximately present! - Comments: 0

The aim of huge numbers of people around working from y - 30 Jan 2019 14:05

Tags:

To sign the very best agreement feasible, review it very carefully before you sign. Some firms may well check with you not to market other things away from their items. This may gradually keep you from making more cash and you will probably realise you are tied to 1 plan which you might stop being satisfied with.

When adding affiliate marketer backlinks on your website, be translucent about the point of the links. When you conceal the affiliate marketing hyperlink, you are making men and women distrustful about your reasons. If instead you tell your viewers your link is an affiliate link, they feel good relating to your integrity and may even be very likely to buy from your links.

Be sure that you like and rely on the item you are requesting your audience to click. Should you be seriously advertising items which are not excellent or spamming your webpage with every type of system imaginable, men and women will cease approaching. It's your perform repeatedly guests that can make or break you, don't drop their believe in in you.

Use information marketing and advertising to promote internet affiliate merchandise. Many people will never purchase a product or service using an affiliate link with no before information regarding this product or exactly what it can perform on their behalf. To boost future income deliver potential customers to an power website where you routinely give helpful advice related to the niche market your affiliate product or service falls into. Include your affiliate marketer website link on the site.

Affiliate internet marketing solutions are available to help you get each of the hyperlinks you desire in a single. The main benefit is basically that you gain access to many hyperlinks right away with small lower body operate. The straight down part is that you simply drop a bit of profit, since the intermediary has got to get his discuss way too.

Any internet affiliate organization you opt to assist should provide you an array of components to utilize. It can be in a company's interest to help you its affiliate marketers produce targeted traffic in order that everyone can profit. So if an organization is just not providing helpful information on you, you ought to realize that the corporation will not be well worth doing work for.

Do your homework to determine what individuals want to acquire and after that sell it off. Selecting an affiliate system that no one wants to buy will create without having a lot of work expended with out a lot to show for. Choose products with good track record documents or that fill a favorite niche available in the market.

High pressure is not required! Remember that internet affiliate marketing is not similar to offering, which means you definitely don't have to put yourself via a lot of pressure to make it happen. Affiliate Marketing don't have to handle products or products. You take care of potential customers rather than clients. You simply have to expose your leads towards the product. You don't really have to offer, which means you are better off just simply being friendly and pleasant and ensuring many individuals begin to see the item.

While looking to achieve success at affiliate internet marketing it really is vitally crucial that you be aware of the products, market objectives, and market place role that your affiliate marketing holds. Understanding this, you must choose an online affiliate that drives you to stay up-to-date on current goods and the success stories of consumers making use of your affiliate's solutions.

Nothing is quite as essential in affiliate internet marketing as properly discovering your market. Being familiar with that we now have various niche market marketplaces inside every single niche market marketplace will help you only target individuals potential customers more than likely to get a product. This helps save lots of time helping you will make far more funds.

Regardless of all the other factors, the affiliate vendor merchandise you might be excited about will offer a lot better than those which tend not to interact with your curiosity. Advertising Cloud Computing ought to be created with enthusiasm, naturally, but actual desire goes further. You can expect to spend more time around the merchandise you cherish. Fill your affiliate internet marketing profile with products which stimulate you.

Some people prevent endorsing great-solution items by way of their affiliate marketing organization mainly because they think that those items are too challenging to market. Nonetheless, Cloud Computing play a far more important part within your accomplishment than the cost of the product. Provided you can compose effectively, it is possible to permit potential customers understand how the merchandise looks, seems and sounds. You may give them a sense of exactly what it would think that to completely own the product. Appeal to their senses in artistic and tempting methods. Make sure they are feel as if they can't live without the merchandise, for one more day time.

By contemplating, implementing and broadening in the internet affiliate marketing guidance and ideas found in the tips introduced in this post, you will be able to develop a profitable affiliate internet marketing plan, carry it out and also be on your journey to becoming a learn of your internet affiliate marketing entire world. - Comments: 0

Touring can encompass a ton of distinct issues dependen - 30 Jan 2019 13:15

Tags:

When touring abroad, hang on to your reciepts for credit rating card buys. When you file them, day them and notice the intent of the order. When you get residence, you have an effortless way to reconcile your assertion with the money you spent. This will make it considerably a lot easier to spot any fraudulent rates.

To wear adapted apparel although touring, search up the temperature in advance. Recall that you may not be applied to serious warmth or chilly if you dwell in a place with a mild local climate. Bring a variety of outfits with you and do not be reluctant to get new clothes in neighborhood retailers.

Bear in mind, when traveling abroad it is superior to keep away from consuming the community tap drinking water. Most visitors will be unaccustomed to the local h2o, and can get fairly unwell. It is really considerably much easier to go to the nearby grocery store or grocery store, and obtain bottled water in its place. It cuts down your likelihood of illness, as bottled drinking water is normally made to the highest of specifications.

Subsequent time you happen to be out on the town and hunting to get a bite, think about chowing down at the nearest Japanese cafe. Fresh new sushi and sashimi are full of protein, extremely very low in body fat, and also amazingly delectable. Salmon, for occasion, is amazingly abundant in vitamin D and omega-3 fatty acids.

Beware of significant cell cell phone fees when travelling overseas. Mobile phones are normally the most highly-priced way to make contact with anyone at household when you are abroad. E-mail or Skype are the most inexpensive possibilities, but if you want to use a telephone, getting a cell phone card and utilizing a community payphone can also be rather low-priced.

Never be afraid to take in outside even though traveling on holiday. Get a sheet from the hotel you can use it as a picnic blanket or a desk cloth. Choose a location that you have been wanting to take a look at and get get-out from a regional restaurant. Love obtaining a leisurely lunch or supper in a lovely position with your family.

When traveling by air, generally prepare to get there at the airport at the very least 1 hour prior to your flights (two for intercontinental flights). Parking, examining in and finding as a result of stability, can take time. Fast paced traces can make the wait around extended and arriving late may imply that you will miss your flight.

When touring alone, it is a good idea to discuss to strangers, in particular if you have never ever been in your location just before this journey. You can come across out lots of appealing and great specifics and points to do and see through your check out, from a stranger. This can genuinely make your journey far more fascinating.

If you are likely to be touring test to avoid pieces of the world which are currently pretty politically unstable. As a tourist you may or may not be as safe as you'd like to be, because of the instabilities. Keep away from nations like Israel, Lebanon, and Syria for the time being.

Make a be aware of where by you parked your automobile so you know exactly where it is when you arrive again. The airport can be extremely massive, as you will want to know exactly where your car is at all instances in the party of an unexpected emergency. Just take a several minutes to jot down your row and area range.

Do http://freepsdflyertemplates.com/ to stow your bag in the spot near to your seat. This will not only support you, but it will aid the deplaning approach go a bit smoother. If everybody was to stow their bags in the initially accessible compartment, it would pressure the folks in the front of the plane to store theirs in the back again and definitely slow matters down at the conclude of the flight.

It can be correct that touring can be a lot of enjoyable. That said, you still want to program to help save revenue and for emergencies. You can always refine your touring strategies to accommodate these issues and more. Ideally, these strategies gave you some valuable suggestions on how to make a far better vacation plan. - Comments: 0

Conduction v. Convection for thermal testing - 30 Jan 2019 05:50

Tags:

By John Booher In Blog, TotalTempComments

What are the trade offs of heat transfer via conduction versus convection in regards to thermal testing?

Heat transfer via conduction is generally faster and more efficient. Depending on your purposes, conduction has a some clear performance advantages and some limitations which we will talk about. In general however, when appropriate conduction is often the best choice for performance.

More to the point, in this discussion, we are talking about trade offs between a temperature chamber and thermal platforms. Temperature chambers are an example of forced convection. Forced convection in a temperature chambers is achieved by the circulation of air using a fan.

Alternatively, natural convection is simply warmer air expanding and becoming less dense, naturally rising creating upward air flow with the colder air sinking to replace the heated air. As a practical note, some chambers have very little forced air flow and thus are limited in convection heat transfer performance. On the other hand increasing airflow excessively can produce unwanted heating by air friction and wasted money and energy spinning large blowers.

For completeness, briefly here, Radiation as the third main method of heat transfer is typically only used for thermal test where conduction or convection are not so practical such as thermal vacuum testing of products with non flat surfaces.

The popular example of comparison between conduction and convection is the pot on the stove.

Courtesy NASA / Machine Design

Mostly radiation transfers heat from the burner to the pan, convection transfers the heat within the water with hotter, less dense water rising and cooler water sinking until temperatures equalize. small thermal chamber in this example will cause your finger to feel the heat and maybe prevent you from picking up the pan.

In the example of a temperature chamber, a fan augments the natural convection flow with a stirring action, greatly increasing heat transfer, to be more precise, this is process is often known as advection. The convective heat transfer in the air of a chamber is far less effective due to the relative density of air compared to water. This shows up as a much lower heat transfer coefficient in heat transfer equations.

For those who think more clearly in terms of equations, here are the simplified comparison of the math behind the heat transfer.

For Conduction: Q = [k ∙ A ∙ (Thot – Tcold)]/d

Conduction is the direct diffusion of heat through a solid material

Q is the amount of heat transferred per unit time

k is the thermal conductivity of the barrier

A is the heat transfer area

T-hot and T-cold are the temperatures of the regions for heat transfer

d is s the thickness of the barrier

With Convection, the Equation looks like this:

Convection being the heat transfer between two items via moving groups of molecules

Q = hc ∙ A ∙ (Ts – Tf)

Where Q is again the amount of heat transferred per time unit

Hc is the convective heat transfer coefficient

A is again the heat transfer area

Ts and Tf are the temperatures of the surface and the temperature of the fluid (air)

These equations describe natural convection heat transfer, not assisted by fan or stirrer. The equations become considerably more complex and generally subject to hueristics and detailed modeling in order to achieve at least moderate accuracy. Variables such as calculating the barrier layers at surfaces, determination of laminar v. turbulent flow and general calculations based on the geometry of the air space fit into the equations. All that boils down to the generality that the more you can stir the air the better the heat transfer – however it will never be as good as conduction. The kitchen example here is that you may be able to keep your hand in a hot oven for a couple seconds without getting burned but a just a few milliseconds of conduction will cause ‘cutaneous damage’ to your finger so with this you can see the relative rate of heat transfer with conduction and convection.

Besides burning your finger, conduction has its issues as well. While the Heat transfer coefficient, hc is the main limiting factor for heat transfer by convection, The area (A) is the main limiting factor for heat transfer by conduction on thermal platforms. Extra care must be taken as well to ensure that the area is really what you think it is(link). Often voids or irregular sufaces limit the area of actual contact.

TotalTemp’s solution to optimal heat transfer is with the intelligent combination both conduction and convection (advection) in our new Hybrid Benchtop Chamber.

Feel free to contact us with any questions concerns or interest in thermal platforms Hybrid benchtop chambers or any thermal testing equipment. We are always available with quality before and after sales support. - Comments: 0

Using Purge Gas When Thermal Testing - 30 Jan 2019 05:45

Tags:

By John Booher In Blog, TotalTempComments

Applying Purge Gas Provides Two Main Benefits When Thermal Testing

INTRODUCTION:

A choice to be considered when selecting the best thermal test system is use of purge gas. Purging with gas serves two purposes during environmental thermal testing. Most often it is used to keep condensation and frost from accumulating on the surfaces of the DUT (Device Under Test) at cold temperatures. Additionally it is also used to prevent oxidation of metals surfaces at high temperatures.

Heavy frost forming at -40C ultimately becomes wet.

hot cold plates of any moisture is to be avoided during environmental testing of electronics.

Thermal Platform with Probing Cover & Nitrogen(g) Inlet

In simple terms, condensation occurs when the air temperature drops below the dew point. Above the dew point more moisture evaporates from surfaces than condenses, below the dew point more water condenses on surfaces than evaporates. The dew point is a temperature determined by the combined effects of the surface temperature and the relative moisture content of the air (assuming same atmospheric pressure).

Generally condensation is to be avoided during environmental testing of electronics. In simple terms, condensation occurs when the air temperature drops below the dew point. Above the dew point more moisture evaporates from surfaces than condenses, below the dew point more water condenses on surfaces than evaporates. Thus, the farther below the dew point, the faster moisture will condense. The Dew point is a temperature point that is determined by the combined effects of the surface temperature and the relative moisture content of the air (assuming same atmospheric pressure).

The easiest way to avoid condensation on a DUT is to lower the moisture content of the air. The easiest way to do that is with dry Nitrogen purge gas into the space around the DUT. The Nitrogen displaces moisture laden air so that dew point condensation or high temperature oxidation cannot occur. Nitrogen from a Dewar or portable tank works very well because the moisture content of the Nitrogen is extremely low and it is often readily available at the test station. Nitrogen is also notably inert, that is to say it does not easily react with other elements or materials. If you are going to extreme temperatures and condensation can cause problems with your devices, you should take measures such as purge gas to reduce condensation. Critical or sensitive metal surfaces exposed to hot temperatures above 170C will be preserved better with purge gas as well.

Sometimes the question comes up if CO2 (Carbon Dioxide) can be used as a purging gas. The quick answer is no. Although CO2 from a tank is dry and displaces moist air, CO2 can react with water to produce carbonic acid which of course is corrosive. As long as there is not moisture to begin with, CO2 would work but it is generally not recommended. Other gasses such as Argon can also be used but are generally more expensive. If your facility provides clean dry compressed air, often this can be successfully used to purge, especially if your air is really dry (some facilities add a desiccator system to air supply) and temperatures are not so extreme (~above -20° C as a rule of thumb).

Your requirements may vary but as a starting point in a small benchtop enclosure or chamber 15 – 20 SCFM for an initial flow rate to displace moist air followed by a reduced rate of 3-5 SCFM two to three minutes after openings have been closed. Too much flow on an ongoing basis can create air temperature gradients inside the box.

Consult your application engineer about options to automate these processes. Application of purge gas to a thermal platform or chamber is generally very easy. A pressure regulator can attach right to your Nitrogen tank. The flowmeter is normally located at the tank as well and used to set the flow rate. Typically a small 1/4″ OD uninsulated hose can connect the output of the regulator/flowmeter to the hot cold plate cover or chamber with simple push to connect fittings. - Comments: 0

An automobile could be a money and time kitchen sink wh - 30 Jan 2019 05:25

Tags:

Examine the tread on the car tires regularly to make sure they are secure. Wheels which may have below a single quarter of your " of tread most likely must be exchanged. Also be familiar with any bulges or slashes on the outside of your respective wheels as this might point to a weakened location that can blow out and lead to a car accident when you are traveling.

Keep Instagram Auto Liker associated with a automobile improvements. Future issues can be simply solved when vehicle technicians have accessibility to prior information. Should you don't have these information, you can shell out plenty more income also it can be more challenging to understand where the concerns is.

Buy engine oils discounted as well as in discounted shops while keeping a couple of bottles from the trunk of your respective car. Look at the oils each time you fill up your petrol aquarium. If you find that your oils stage is reduced, you are going to help save plenty of cash by having your own essential oil on hand rather than buying it at a service station for inflated rates.

Contact your nearby Better Organization Bureau if you require additional information over a auto technician or possibly a storage area. If some grievances are already registered towards them, your Much better Business Bureau will show you. Check with your family and friends in regards to the various mechanics they have dealt with in the past to acquire some recommendations.

If your car's electric powered product is acting strangely, try out washing the floor cable connections. Car producers make use of the metallic entire body of any car to act as a "floor" for the electrical program. As time passes the location where by this cord hooks up towards the framework can corrode, resulting in a stray electrical current that could wreak havoc on your system. This cord is usually attached around the firewall or fender, so simply disconnect it and use a wire brush or sandpaper to clean up the contacts.

If you're executing your own personal repairs below an auto and possess it raised inside the air flow, be sure that the raising system you utilize is secure. Never raise an auto that is certainly not on levels ground or on the business surface. Only take jackstands from the proper position and never solely depend upon a jack to hold an automobile raised above the ground.

Turn your vehicle auto tires every 6,000 miles or at every other oils change. Spinning your wheels on the set up routine will help guarantee that they use consistently, and thus last longer. Your car or truck may also be simpler to generate, as unbalanced auto tires can cause the car taking to a single area or the other.

Inquire about other potential problems to ensure you will see so shocks when you appear to pick up your vehicle, They actually do this making it appear to be you are getting a good price from their website. Let them know you are going to make contact with them in the future, then make time to look for a greater bargain.

Swapping a charcoal canister is very expensive, but you can actually change this portion oneself. Take off the wheel found within your fuel tank and disconnect the vacuum outlines connected to the outdated canister. The aspect need to then can come appropriate away. Mount the latest one and hook up the outlines very carefully prior to setting up the tire yet again.

Possess a mechanic shop in mind prior to running into difficulty. In the event you hold off until a crisis, you might find yourself using a dishonest technician who may be convenient since you are needy. Request friends for a auto technician with a decent track record. When you run into fix troubles, you can trust you won't be scammed.

Invest in a thorough maintenance manual for your personal car. Even when you are not comfy adequate to correct your vehicle your self, you can expect to no less than obtain a greater concept of the way your vehicle runs and maybe diagnose a few troubles yourself. Simply being well-informed will assist you to identify a sincere technician as well.

A lot of people do not read their owner's guide. Look at this manual and tag the important webpages that cope with information about preserving your motor vehicle. After looking at this manual, it is possible to conduct lots of improvements oneself.

Having read these guidelines now, aren't you anticipating a greater final result once your automobile requirements some repairs in the future? Restoration careers could be uncomfortable, but issues could be better if you have information to assist you. Use these tips for your personal auto fix requirements. - Comments: 0

page 1 of 12123...1112next »

Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License