![]() CPM leader Surjya Kanta Mishra called up Pushpal. de Mello Manoj Kumar Mahata, Ranjit De, Kang Taek Lee Rahul Kumar Sharma, Pushpal Ghosh Hoang Nhu Van. Banerjee brought a message from CM Mamata Banerjee. Among those who visited the Ghosh residence on Tuesday were minister Rajib Banerjee, MLA Sultan Singh, former MLA Kanika Ganguly and Bally Municipality chairman Arunava Lahiri. Why had he fallen? Had he been shot? We came to know later that the policemen had asked them to get down on the ground. We watched him leaving and then he suddenly fell. When he emerged out of the café, my wife shouted: ‘Oi to Baban’ (There is Baban)”. Around 8.45pm, the couple watched as hostages started leaving the café. The only time she stepped out was to go to the prayer room. Pushpal’s wife Pritikana remained glued to the television set throughout the day. I didn’t dare to call up our son but sent him an SMS. Some of the images were grainy but on one occasion, we could make out that Pushpendu was standing near the window. How could something like this happen to him? I asked my wife not to panic and switched on the television set. “The caller said that we shouldn’t worry as efforts are on to get him released. He was getting ready for office around 8.30am on Monday when he received a call from Infosys. Around 8.30am (Sydney time), Pushpendu had gone entered the café that day,” Pushpal, an electrical engineer, said. On certain days, he would prepare his own breakfast while on others he goes to this café in central Sydney. He will visit home during Saraswati Puja in 2015. “The last time he visited home was during the Pujas in 2013. In February this year, he was made project manager and transferred to Sydney. In 2009, he was promoted and left for Melbourne, Australia. Rahul Kumar Sharma, Yogendra Nath Chouryal, Shubham Nema, Sandeep Nigam, Siba Prasad Bera, Yogesh Bhargava, Pushpal Ghosh, Green EmittingCe3+/ Tb3+Doped BaF2 Nanocrystals and Their Impact on Skeletal Muscle of Developing Zebrafish Larvae, ChemistrySelect, 10.1002/slct.202001268, 5, 29, (9105-9110), (2020). In 2002, he passed civil engineering from an institute in Pune and joined Infosys the next year. Pushpendu is an only child and studied till Class-XII at the St Thomas School in Howrah. Pushpendu remained still by thinking of the teachings of Swami Vivekananda, he told his parents,” said childhood friend Bhaskar Gopal Chatterjee. He said that he wasn’t tortured but none of the hostages were granted access to food or water during 17 hours they were held hostage. “He called up home around 1.30pm on Tuesday. The 34-year-old techie, when he spoke to his parents on Tuesday afternoon, said that it was Swami Vivekananda’s thoughts that kept him alive. It was pure torture for us for the next 12 hours,” his father Pushpal Kumar Ghosh said on Tuesday. “A chill ran down my spine when I received a call from Infosys, informing us that Pushpendu had been taken hostage. Analysis suggests that the modification of the quantum efficiencies of the rare-earth doped sodium yttrium fluoride nanocrystals can be done by changing the crystal phase and excitation wavelength.HOWRAH: Twelve hours that they watched Pushpendu Ghosh and other hostages spend inside Lindt Café in Sydney on Monday were like 12 years to his parents back at their Panchanantala Road home in Bally. The quantum efficiency value increases from 4.3 to 67.4% with changing from charge transfer excitation to direct excitation, and this value can be tuned with changing the crystal phase. It is interesting to note that the decay time also varies with changing the excitation wavelength. Under 394 nm excitation, the decay time increases from 5.92 to 7.58 ms with changing the crystal phase from cubic to hexagonal. The PL intensity of hexagonal phase sample is stronger than the cubic phase sample under direct excitation and reversal result is obtained under charge transfer (CT) excitation. The PL intensity, decay time, and quantum efficiency are found to be sensitive to the crystal phase and excitation wavelength. Understanding the influence of nanoenvironment on luminescence of rare-earth ions. The volume fraction of the cubic phase decreases from 100 to 55% with increasing the temperature from 80 to 400 ☌, and the lattice strain can be modified by changing the crystal phase. Pushpal Ghosh & Amitava Patra Rights and permissions Reprints and Permissions About this article Cite this article Ghosh, P., Patra, A. Here we report the preparation of Eu 3+-doped cubic NaYF 4 and hexagonal Na(Y 1.5Na 0.5)F 6 nanocrystals and the crystal phase is modified by temperature of heating and varying the Y 3+/F − ratio. ![]()
0 Comments
Leave a Reply. |