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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.

BJP Boost

Updated: Oct 22, 2024

As the dust settles over the recent Assembly elections, the BJP, defying anti-incumbency prediction of political Cassandras and exit polls, is set for a historic third term in Haryana. This will buoy the party after its underwhelming performance in the Lok Sabha polls. The Haryana outcome not only reinforces the BJP’s foothold in national politics but also presents a counter-narrative to the INDIA bloc’s post-election fervour.

Despite the bogey stoked by lingering farmer protests and discontent surrounding the controversial Agniveer scheme, the BJP strategically diversified its approach, relying not solely on Prime Minister Narendra Modi’s star power—evidenced by his reduced number of rallies—but also on a ground-level consolidation of anti-Jat votes. The Congress’s over-reliance on the Jat community backfired, rallying other groups against it. Interestingly, the Dalit vote, which the Congress anticipated would tilt in its favour, has not completely abandoned the BJP.


At the forefront of the BJP's campaign was Chief Minister Nayab Singh Saini, whose relatively short tenure allowed him to distance himself from the decade-long rule of the previous administration. By introducing measures to benefit the backward classes, including a significant income limit increase for OBC employment from Rs. 6 lakh to Rs. 8 lakh, the BJP effectively shifted the narrative in its favour. Their mantra of ‘bina parchi, bina kharchi Naukri (promising jobs without bribes) resonated with voters.


The BJP’s rejuvenated team, led by key figures such as Union Minister Dharmendra Pradhan and state leaders, has seemingly addressed concerns that arose following its poor showing in the Lok Sabha elections. The incorporation of new candidates in place of established leaders provided a fresh face that contrasted sharply with the Congress’s decision to recycle incumbents.


In contrast, in Jammu and Kashmir, the National Conference, in alliance with the Congress, having crossed the majority threshold, reclaimed its historic dominance and is set to form the government. Here, the BJP’s performance in the first Assembly election held after the abrogation of Article 370, fell short despite its strenuous attempt to position itself as a proponent of development.


The electorate’s apparent rejection of hardline factions like the PDP reflects a nuanced response and win for democracy. Notably, the results have shown a significant rejection of separatist candidates, including those from Engineer Rashid-led Awami Ittehad Party and Jamaat-e-Islami, who failed to make a meaningful impact in the polls.


The BJP’s emphatic victory in Haryana redeems its Lok Sabha misstep but also signals a broader political resurgence, giving the party renewed vigour to march into future contests like the crucial Maharashtra Assembly election.

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