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,...

min read

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.

India bears the brunt: Nifty crashes 1,100, Sensex nosedives 3,900 points after US trade shock

Correspondent
Apr 7, 2025
2 min read

India woke up to a financial jolt this morning as its equity markets suffered their steepest fall in nearly a year, shaken by the ripple effects of US President Donald Trump’s aggressive new tariff regime. The Sensex plunged over 3,900 points at opening bell, while the Nifty tumbled more than 1,100 points, dragging Indian stocks to a 10-month low.

This sharp decline follows a global equity rout triggered by Trump's protectionist measures, which have sent panic waves across Asia and raised the spectre of a global recession. Investors dumped shares in a massive sell-off, with Indian benchmarks reacting sharply in early trade. The Sensex dropped to 71,425.01 — down 3,939.68 points — while Nifty slipped to 21,743.65, marking a 3.5% slide from the last session.

Adding to the pressure, the Indian rupee depreciated 30 paise to open at 85.74 against the US dollar.

India Among the Hardest Hit

Trump’s latest tariff hike — framed as a push to restore fairness to global trade — has imposed country-specific duties that go as high as 50%. India has been slapped with a 26% tariff, while a 10% baseline duty applies to all nations. This has set alarm bells ringing among Indian exporters and traders already struggling with global demand volatility.

President Trump, unfazed by the financial carnage, likened the move to a bitter but necessary cure. “Sometimes you need the medicine to fix something,” he told reporters earlier today.

Analysts Urge Economic Safeguards

Market experts believe that India's current market turmoil isn't rooted in domestic issues but is rather a consequence of being tightly woven into global investment flows.

“India will face the heat, not due to domestic reasons, but as an interlinked chain in the global portfolio flows,” said Ajay Bagga, a noted market expert. “India will need a fiscal, monetary, and reform package to protect the domestic economy from this global economic winter that is threatening to settle in.”

Sunil Gurjar, SEBI-registered research analyst, warned that the Nifty50 index has breached its first support level and is approaching the next. "A further breakdown could worsen the trend and accelerate the fall," he cautioned.

Asian Markets Bleed

The tremors from Trump's announcement were first felt in Asia, with key markets suffering steep losses. China's stock markets fell over 4% amid retaliatory tariffs of 34% against the US. Hong Kong's Hang Seng nosedived more than 10%, while Japan’s Nikkei index fell 6.5% after plunging 8% earlier in the day. Taiwan saw a near-10% collapse, and Singapore dropped over 8%.

Wall Street Braces for Impact

US markets, though yet to open, appear set for a rough start. Futures contracts on the New York Stock Exchange are sharply down, suggesting heavy losses once trading resumes.

Market sentiment globally has turned bearish, with fears of a looming recession taking hold. Stephen Innes of SPI Asset Management described the scene as “free-fall mode,” noting, “Trump’s team isn’t blinking. The tariffs are being treated as a victory lap, not a bargaining chip.”