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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.

Minor girl assaulted; infant trafficking uncovered

Tushar Salve
Tushar Salve

Badlapur: The area of Badlapur has recently been rocked by a series of alarming criminal incidents, including the shocking assault of a minor girl undergoing cancer treatment. A 27-year-old man has been accused of sexually assaulting the girl, who had come from Bihar for medical care. The perpetrator, who had initially posed as a benefactor by providing her with rented accommodation, has sparked outrage in the community. This incident has raised serious concerns about the decline of humanity and moral judgment among people.


In a separate but equally disturbing case, authorities have uncovered a heinous infant trafficking operation disguised under the guise of a watermelon vendor. The Forest Department has revealed that the suspect, identified as Tushar Salve, was involved in the illegal sale of newborns. Following a confrontation over littering with Forest Department officials, Salve filmed the incident and shared it on social media. During the investigation, officials discovered chat messages on his phone related to the buying and selling of infants.


A case of human trafficking has been registered against Salve at the Badlapur West Police Station. This individual is reportedly a repeat offender, having been arrested previously for similar crimes. He was first apprehended in 2013 and released on bail, only to be arrested again in 2023 for a similar offense in Thane. After being granted bail, he resumed his illicit activities.


Upon his arrest, Salve was presented in court, where he was remanded to six days of police custody. The vigilance of Forest Officer Vaibhav Walimbe played a crucial role in exposing this child trafficking operation, as confirmed by Deputy Police Commissioner Sachin Gore.

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