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By:

Rajendra Joshi

3 December 2024 at 3:50:26 am

Proud moment for Shivaji University researchers

Indian patent for portable sound absorption testing device Kolhapur: Researchers from Shivaji University, Kolhapur, have developed a portable sound absorption testing device that can scientifically assess whether an installed sound system and its acoustic treatment are functioning effectively. The innovation has been granted an Indian patent, marking a first-of-its-kind development in this field, the university said on Thursday. The patented device, named the Portable Sound Absorption Tester,...

Proud moment for Shivaji University researchers

Indian patent for portable sound absorption testing device Kolhapur: Researchers from Shivaji University, Kolhapur, have developed a portable sound absorption testing device that can scientifically assess whether an installed sound system and its acoustic treatment are functioning effectively. The innovation has been granted an Indian patent, marking a first-of-its-kind development in this field, the university said on Thursday. The patented device, named the Portable Sound Absorption Tester, has been developed by senior chemist Dr Kalyanrao Garadkar of Shivaji University, along with Dr Sandeep Sable and Dr Rohant Dhabbe of Jaysingpur College, and Dr Chandrala Jatkar of the D K T E Society’s Textile and Engineering Institute, Ichalkaranji. The device is designed to test the sound absorption capacity of professional acoustic systems used in recording studios, theatres, auditoriums and soundproof chambers. Until now, the effectiveness of such sound-absorbing installations has largely been assessed through experience and trial-and-error after installation. The newly developed portable tester allows for immediate and scientific evaluation of sound absorption performance once the system is installed. Sound-absorbing sheets and panels are widely used in theatres, studios and vocal recording rooms to absorb echo around microphones and create a controlled acoustic environment, enabling cleaner and more professional audio output. The new device can be used to evaluate a wide range of absorbers, including perforated foam, fibre, fabric, membranes, panels and resonant absorbers, helping improve the quality and effectiveness of acoustic materials. Explaining the working of the device, Dr Garadkar said that the human audible frequency range extends from 20 Hz to 20 kHz. The device generates sound waves within this spectrum and projects them onto the acoustic material under test. The sound waves that are not absorbed are detected by a microphone and displayed on the screen in the form of current or voltage readings. This enables users to instantly determine whether the sound absorption system is functioning as intended and make corrective interventions if required. The researchers said the device would also be useful for those engaged in acoustic fabrication and sound absorption research. Apart from being portable and easy to transport, the device is also cost-effective, making it suitable for field applications. The team expressed confidence that it would prove highly useful in the sound system testing sector. Shivaji University’s in-charge Vice-Chancellor Dr Suresh Gosavi and in-charge Pro Vice-Chancellor Dr Jyoti Jadhav congratulated the research team on securing the patent.

US Vice President JD Vance urges Pakistan to cooperate with India in hunting down Pahalgam terrorists



Washington: US Vice-President J.D. Vance has said that the US hopes that Pakistan would cooperate with India to hunt down the Pakistan-based terrorists responsible for the terror attack in Jammu and Kashmir's Pahalgam last month.


"Our hope here is that India responds to this terrorist attack in a way that doesn't lead to a broader regional conflict," Vance said on Thursday in an interview on Fox News' "Special Report with Bret Baier" show.


"And we hope, frankly, that Pakistan, to the extent that they're responsible, cooperates with India to make sure that the terrorists sometimes operating in their territory are hunted down and dealt with," the Us Vice-President added.


During the interview with Fox News, Vance made his first public remark on the attack, which left 26 people dead.


Vance and his family were in India on a four-day visit when the carnage -- the worst since the Pulwama attack on CRPF personnel in 2019 -- took place.


The Vice-President's remarks assume significance amid rising tensions between India and Pakistan in the aftermath of the Pahalgam attack.


Vance, who was in India last month, had then condemned the attack and expressed solidarity with the victims and their families in a post on X.


The Pahalgam attack, which claimed the lives of 25 tourists and one local, was one of the deadliest attacks on civilians in the Kashmir Valley in recent times. The terrorists had planned the attack on a scenic meadow which required hiking or using a pony service to get to the spot.


US Secretary of State Marco Rubio spoke with External Affairs Minister S. Jaishankar and Pakistan Prime Minister Shehbaz Sharif on Wednesday, amid escalating tensions between the two countries following the Pahalgam terror attack that claimed 26 lives.


Rubio asked Pakistani officials to cooperate in the investigation and work to de-escalate tensions between them.


In his first public remarks on the attack, Home Minister Amit Shah on Thursday said that India will give a fitting and precise response to every act of terrorism.


Sending a strong warning to terrorists, Amit Shah said, "If anyone thinks that a cowardly attack is their victory, they must remember this is Narendra Modi's India — and revenge will be taken, one by one."



Prime Minister Narendra Modi has vowed to "pursue" the perpetrators and their backers "to the ends of the earth".


India downgraded its ties with Pakistan following the Pahalgam attack and took several diplomatic measures, including the pausing of the Indus Waters Treaty, expelling all Pakistani military attaches, closing its airspace to Pakistani airlines and the shutting down of the Attari-Wagah border.


In response, Pakistan undertook tit-for-tat measures and suspended the Simla Agreement.

India on Thursday relaxed its deadline allowing Pakistani nationals to return to Pakistan via the Attari-Wagah border. But, Pakistan has not yet reciprocated with the same measure by allowing Indian nationals into the country.

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