Off-Beat

Scientists make eco friendly 3D microbial fuel cells

Published

8 years ago

July 6, 2016

Scientists have found that three-dimensional paper-based microbial fuel cells can create power in an environmentally-friendly way without the use of any outside power. “All power created in this device is usable because no electricity is needed to run the fluids through the device. This is crucial in the advancement of these devices and the expansion of their applications,” said senior author Nastaran Hashemi from the Iowa State University in Ames.

The team demonstrated a proof-of-concept, published in the journal TECHNOLOGY, that 3D paper-based microbial fuel cell (MFC) could take advantage of capillary action to guide the liquids through the MFC system and eliminate the need for external power. In the study, the paper-based MFC ran for five days and showed the production of current as a result of biofilm formation on anode.

The system produced 1.3 µW (microwatt) of power and 52.25 µA (microampere) of current yielding a power density of approximately 25 W/m3. The biofilm formation on the carbon cloth during the test provided further evidence that the current measured was the result of the bio-chemical reaction taking place. This was important because the biofilm play a vital role in current production of a microbial fuel cell.

According to the researchers, increased biofilm size and thickness ultimately leads to increased current production. The device for the first time demonstrated the longer duration of use and ability to operate individually, a development that could help increase the number of situations where microbial fuel cells can be applied. The researchers are now exploring options to better control the voltage output and create constant current.

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Off-Beat

Weather update on 31st August

Published

3 years ago

August 31, 2021

Priyanka Shet

Panaji : The Indian Meteorological Department, Goa informed on Tuesday 31st August that the South–west monsoon was Normal over the state of Goa. Light to moderate rainfall occurred at most places over the state of Goa. Chief amount of rainfall was received in Ela (Old Goa); Panaji, Sanquelim, Sanguem; Quepem, Mapusa, Pernem and Ponda. For north and south Goa, IMD has informed that Light to Moderate Rainfall/Thundershowers with short intense spells very likely at most places for the district on 31st August, 01st, 02nd, 03rd & 04th September 2021. However no weather warning has been issued till 3rd September. (GoaNewsHub)

Off-Beat

Revival of Heritage Structures by Goa ForGiving

Published

3 years ago

July 8, 2021

Akshay Lad

Goa ForGiving has always been in the forefront of preserving Goan heritage; They have therefore initiated to power the heritage structures of Goa, which have been neglected due to whatever reason. There is so much history attached to old buildings, Goan homes etc. and letting them into ruins will be a great loss for the state.

There are so many beautiful and valuable heritage structures in and around Goa that need rehabilitation and our utmost attention. Goa Institute of Management building situated right opposite the scenic Mandovi river at Ribandar is just one of them. The building’s significance is in its history. It was initially Goa Medical College & hospital which was then taken over by the Goa Institute of Management. The building is currently in an abandoned state.

As the Founder Chairman, Mr. Armando Gonsalves shared a picture of the old GIM building in its neglected state, it caught the eyes of several noted alumni coming from the then GMC and GIM complex. There was an overwhelming response along with the nostalgic memories the students have had of a small joint “Casa De Cha”, where they would frequently visit for breakfast and meals.

The very spirit of the alumni and the public in general inspired Goa ForGiving to clean the façade of the building. With the help and guidance of Civil Engineer Mr. Crombel Pinto, architectural photographer AshayPhadke, social activist Adarsh Toraskar (who have selflessly given their time to this project by offering their services pro bono) they managed to bring some life back to the building.

To celebrate our heritage and bring heritage enthusiasts together, the Goa ForGiving Trust is organising a ‘Heritage Meet’ on Sunday, the 11^thof July 2021. Photographers, artists, heritage lovers, Ex GIM staff and students are welcome to joinand be a part of this project by taking photographs, painting the building etc. Blive, the electric cycling company will also join in with their biking enthusiasts. And for old memories sake ‘Casa De Cha’ will have their specials on offer for breakfast, where everyone can sit by the riverfront and enjoy some goan breakfast delicacies on a Sunday morning.