Navigation Links
Beach umbrellas do not block out all solar radiation
Date:7/20/2010

A team of researchers from the University of Valencia (UV) has proven that 34% of ultraviolet radiation filters through under beach umbrellas. According to what is published in the journal Photochemistry and Photobiology, umbrellas intercept the full direct flow that comes from the Sun, but not the diffused radiation that penetrates through from the sides.

"We have proven that irradiance (radiation incidence per unit of surface area) that reaches the ground covered by an umbrella is 34% of the total", Jos Antonio Martnez-Lozano, co-author of the study and coordinator of the Research Group of Solar Radiation in UV, highlights to SINC.

To carry out the Project, which was published recently in the journal Photochemistry and Photobiology, the team positioned an ultraviolet ray sensor on the base of a canvas umbrella painted blue and white, with a radius of 80cm and height of 1.5 metres.

"The umbrella intercepts the direct radiation that comes from the Sun, but part of the diffused radiation, which makes up approximately 60% of the total, reaches the sensor from the sky not covered by the umbrella", explains Martnez-Lozano.

The results show that canvas has a very high capacity for absorbing radiation, "with only 5% transmissivity", but this does not prevent diffused ultraviolet radiation from penetrating through on the sides.

In addition, the team has developed a geometric model to obstruct the sky to calculate the irradiance that is received on the different horizontal and vertical planes under the umbrella. In the case of horizontal irradiance, the values that the model provides coincide with those registered experimentally with only a relative error of 3%.

In this way, and using various configurations of sky, ground and umbrella, the researchers have been able to simulate the real situation of people, who do not always remain lying down under sunshades, as they often tend to rise, sit or
'/>"/>

Contact: SINC
info@plataformasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Page: 1 2

Related medicine news :

1. Golden Age Resources, Inc Terminates Alliance with JK Development of Palm Beach County LLC.
2. Hot Summer Golf Packages for Myrtle Beach
3. Business Consulting Options, LLC Sponsors the Crescent Beach Challenge
4. Kayak With Whales Argentina Patagonia - From Our Exclusive Beach Camp
5. US Army 2010 Combat Casualty Care Conference, Aug. 16-19, St. Pete Beach, Fla.
6. George Carter of Carter's Plumbing & Rooter Announces the Launch of His New Website, CartersPlumbingRedondoBeach.com
7. Golden Age Resources, Inc. Announces Strategic Alliance with JK Development of Palm Beach County LLC in an Attempt to Stop the Oil Leak in the Gulf
8. Huntington Beach Hotel and Resort Recognized for Elite Efforts to Conserve the Environment and Provide Guests with a Green Hotel Stay.
9. Long Beach Fit Body Boot Camp Commits 100% to Help the ‘Boys and Girls Club of Long Beach'
10. Dr. Keith Berman's Beach Body Secrets: 7 Simple Tips for Weight Loss Success
11. BestofNorthCarolina.com Presents Their Inaugural 'Carolina Beach Bash' to Benefit the Juvenile Diabetes Research Foundation
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Beach umbrellas do not block out all solar radiation
(Date:7/11/2014)... Ticket Down is a reliable source for ... When it comes to the summer concert schedule, it just isn’t ... is one of the biggest names in country music and one ... out on his “That’s My Kind of Night” tour featuring Lee ... be making through the rest of the summer and into the ...
(Date:7/11/2014)... (PRWEB) July 11, 2014 According to ... & Application Market by Communication Technology (ZigBee, Z-Wave, Bluetooth, ... Electronics, Industrial, Automotive & Transportation, Agriculture) & Geography - ... value of Internet of Things market was worth $1029.5 ... Billion by 2020, at an estimated CAGR of 4.08% ...
(Date:7/11/2014)... Presently, disposable medical suppliers call for the biggest ... During the past two decades, the world market for ... 12.5% per year), primarily owing to the importance of ... the largest market for disposable medical supplies in the ... position is held by Europe with a 29% market ...
(Date:7/11/2014)... 2014) Obese and overweight firefighters are not ... providers, according to new research from The University ... , National guidelines state that health care professionals ... maintaining a healthy weight. Firefighters have high rates ... cause of line-of-duty deaths in firefighters. This study ...
(Date:7/11/2014)... to repair damage to the anterior cruciate ligament (ACL) -- ... could increase a young athlete,s risk for further injuries, researchers ... aged 8 to 16, who had ACL reconstruction surgery. Of ... their injury, 37 had surgery six to 12 weeks after, ... their injury. The youngsters who had surgery later had ...
Breaking Medicine News(10 mins):Health News:Luke Bryan Ticket Prices Slashed at Concord Pavilion 2Health News:Luke Bryan Ticket Prices Slashed at Concord Pavilion 3Health News:Internet of Things Technology & Application Market Worth $1423.09 Billion by 2020 – New Report by MarketsandMarkets 2Health News:Internet of Things Technology & Application Market Worth $1423.09 Billion by 2020 – New Report by MarketsandMarkets 3Health News:Internet of Things Technology & Application Market Worth $1423.09 Billion by 2020 – New Report by MarketsandMarkets 4Health News:Global Disposable Medical Supplies Market to See Robust Growth Through Next Decade, According to New TriMark Report Available at MarketPublishers.com 2Health News:Global Disposable Medical Supplies Market to See Robust Growth Through Next Decade, According to New TriMark Report Available at MarketPublishers.com 3Health News:Delaying Kid's Knee Surgery Could Be a Bad Play, Study Finds 2
... July 13, 2010 The decision regarding treatment following ... (DCIS) has long been an area of discussion and ... rates for DCIS remain low, the risk of local ... surgery include radiation therapy and hormone treatment. While ...
... Science Associates, the company that manages the U.S. ... Engineering Technologies, Inc. (BioSET) of Rockville, Maryland, have ... second-generation technology for designing synthetic peptides that are ... are designed to communicate growth signals to cells ...
... HealthDay Reporter , TUESDAY, July 13 (HealthDay News) -- ... decade ago that the blockbuster diabetes drug caused an increased ... to a report published Tuesday in The New York ... its competitor, Actos, the drug company, then known as SmithKline ...
... ARBOR, Mich.---Dostoyevsky and Tolstoy portrayed Russians as a brooding, ... to focus on dark feelings and memories more than ... finds that even though Russians tend to brood, they ... as a result. "Among Westerners, focusing on one,s ...
... health threats ranging from swine flu to bioterrorism to ... vast potential to protect the public. In a paper ... in Emerging Health Threats Journal , public health ... surveillance, detailing innovations on the horizon that may facilitate ...
... Children and young adults with Tourette syndrome can gain control ... suggests. But a specialist in the condition said the ... works. In the study, reported in the July/August ... , researchers used a video to teach 33 people aged ...
Cached Medicine News:Health News:Prediction tool helps estimate local recurrence in patients with noninvasive breast cancer 2Health News:Prediction tool helps estimate local recurrence in patients with noninvasive breast cancer 3Health News:Brookhaven Lab and BioSET Inc. patent improved growth factor technology 2Health News:Avandia Heart Risks Buried by Drug Company: Report 2Health News:Avandia Heart Risks Buried by Drug Company: Report 3Health News:Brooding Russians: Less distressed than Americans 2Health News:Researchers envision better disease surveillance to improve public health 2Health News:Can Self-Hypnosis Help Tourette Patients Control Tics? 2
(Date:7/11/2014)... July 11, 2014 On ... down 0.52%, the Dow Jones Industrial Average finished the day ... 1,964.68, down 0.41%. The losses were broad based as eight ... S&P 500 Health Care Sector Index ended the day at ... the last one month. Investor-Edge has initiated coverage on the ...
(Date:7/11/2014)... , July 11, 2014 ... to Safety & Health Expo 2014 were ... move to London , ... attending exhibition.          ... http://photos.prnewswire.com/prnh/20140711/696892-a )      (Photo: ...
(Date:7/10/2014)... U.S. Department of Health and Human Services (HHS) has ... Medical Center Seidman Cancer Center totaling $4.7 million to ... for patients with complex cancer. Titled ... model developed at UH to enhance care for adult ... need for high health care utilization.  ...
Breaking Medicine Technology:Health Care Equipment Equities Movers and Shakers -- Research on Covidien, Baxter, DexCom, and Boston Scientific 2Health Care Equipment Equities Movers and Shakers -- Research on Covidien, Baxter, DexCom, and Boston Scientific 3Health Care Equipment Equities Movers and Shakers -- Research on Covidien, Baxter, DexCom, and Boston Scientific 4UK's Flagship Health & Safety Event Has Successful Inaugural Year in London 2UK's Flagship Health & Safety Event Has Successful Inaugural Year in London 3UK's Flagship Health & Safety Event Has Successful Inaugural Year in London 4University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 2University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 3University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 4
... Pharmaceuticals, Inc. (Nasdaq: ALSE ), announced today that ... Altropane Parkinson,s or Essential Tremor (POET-2) Phase III ... the program was to acquire the set of Altropane images ... Phase III registration portion of the program. The Altropane ...
... Care approach designed to help improve medication adherence to ... 3 /PRNewswire/ -- A study ... ) found that nearly half of patients hospitalized for ... therapies, significantly increasing their risk for subsequent hospitalization within ...
Cached Medicine Technology:Alseres Pharmaceuticals Completes Enrollment in First Stage of the Altropane(R) POET-2 Phase III Program 2Alseres Pharmaceuticals Completes Enrollment in First Stage of the Altropane(R) POET-2 Phase III Program 3Alseres Pharmaceuticals Completes Enrollment in First Stage of the Altropane(R) POET-2 Phase III Program 4Alseres Pharmaceuticals Completes Enrollment in First Stage of the Altropane(R) POET-2 Phase III Program 5CVS Caremark Study Finds Non-Adherent Heart Failure Patients Almost Twice as Likely to be Re-Hospitalized Within a Year 2CVS Caremark Study Finds Non-Adherent Heart Failure Patients Almost Twice as Likely to be Re-Hospitalized Within a Year 3CVS Caremark Study Finds Non-Adherent Heart Failure Patients Almost Twice as Likely to be Re-Hospitalized Within a Year 4
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
Medicine Products: