Department of Physics

(1) Vice-President, Physics Academy of North East(PANE) since Dec., 2014;Life Member, Physics Academy of North East                                   (PANE); Founder Executive Council member of PANE since 1998

(2) Life Member, Indian Liquid Crystal Society(ILCS); Executive Council Member of ILCS during 1998 – 2009

(3) Member, American Chemical Society (ACS) 

(4) Life Member, Indian Science Congress Association(ISCA) 

(5) Member, International Liquid Crystal Society (InLCS)

(6) Life Member, International Disordered Systems Associates Society (INDIAS)

(7) Life Member, Material Research Society of India (MRSI)

• 2^nd National Conference on Liquid Crystals during 26-28 December 1994 at NERIST
• Awareness program on ISO14000 during 29 – 30 January, 2006 at NERIST
• Awareness program on ISO9000 during 29 – 30 January, 2006 at NERIST
• 18^th National Conference on Liquid Crystals during 15-17 November, 2011 at NERIST
• IX^th National Conference of Physics Academy of North East during 18-20 December, 2014 at NERIST (Joint organisation with Dr. T. Karlo & Dr. A. Pandey)

• Presented 03 research papers at 26^th International Liquid Crystal Conference during 31 July – 5 August, 2016 at Kent State University, Ohio, USA
• Delivered an Invited talk at 22^nd National Conference on Liquid Crystals during 21-23 December, 2015 at DIT University, Dehradun
• Delivered an Invited talk at International Conference on Condensed matter and Mesoscopic Physics during 21-24, June, 2015 at Boston, USA
• Delivered an Invited Talk in a work shop on the Application of Optical Techniques in Science &Technology during 2013 at NERIST
• Presented a Research Paper at  23^rd AGM MRSI conference during 13-15 Feb., 2012 at Patiala, Punjab
• Delivered an Invited Talk at Condensed Matter Days-2011at Guwahati University during 24-26 August, 2011
• Delivered an Invited Talk at 17^th National Conference on Liquid Crystals during 15-17 November, 2010 held at VNGSU, Surat, Gujarat
• Attended VIIth National Conference of Physics Academy of North East during 5-7, November, 2010 at Manipur University, Imphal
• Presented 01 Research Paper at 97^th Indian Science Congress during 3 – 7 January, 2010 held at Trivendrum , Kerala.
• Attended INDO – HAS work shop on liquid crystals organised by CLCR, Bangalore on 01-12-2006.
• Delivered an Invited Talk at National Conference on Liquid Crystals during 10 -12 October 2003 at Bangalore (and Chaired a Technical Session)
• Attended Conference on liquid crystals and other soft materials during 18-20 December 2002 at Raman Research Institute, Bangalore

• Delivered an Invited Talk at National Conference on Liquid crystals during 7-9 September 2001 at Hospet, Karnataka (and Chaired a Session)
• Presented 03 Research Papers 18^th International Liquid Crystal conference during 24-28 July 2000 at SENDAI, Japan  
• Delivered a talk on the research carried at University of Southampton, U. K.  (1995-96; 1 year visit) at BOYSCAST Fellows interaction meet during 18-20 April 2000 at NBRI, Lucknow
• Presented 01 Research paper at National Conference on Liquid Crystals during 29-31 October 1998 at Goa (Chaired 01 session and got elected to the Executive Council of Indian Liquid Crystal Society)
• Chaired 01 technical session at One day Conference on Physics Research in the North East on 17^th October 1998 at IIT Guwahati
• Presented 02 Research Papers at 15^th International Liquid Crystal Conference during 3-8 July 1994 at BUDAPEST, Hungary
• Attended VI National Seminar on Ferroelectrics & Dielectrics during 17-19 December 1990 at Warangal

(A) Brief Details:

• Published in Peer Reviewed International Journals               : 56
• Communicated to Peer Reviewed International Journals      : 08
• Presented at International Conferences but not Published    : 03

(B) SOME RECENT PUBLICATIONS:

01.   Phase Transition studies in  symmetric dimeric liquid crystals : a density study

        P PARDHASARADHI , D. MADHAVI LATHA, P.V. DATTA PRASAD, G. PADMAJA RANI, P.R. ALAPATI

        and V. G. K. M. PISIPATI

        JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 111, 1483 (2013);ISSN No.: 10973-012

02.   Optical studies of a liquid crystalline compound 6O.6

         T. KIRANMALA DEVI,  P.R. ALAPATI, BASANA  CHOWDHURY and AYON BHATTACHARJEE

          LIQUID CRYSTALS, 40, 810-816 (2013);ISSN No.:0267-8292

03.     Dielectric Relaxation Studies of Silver Nanoparticles  dispersed Liquid Crystals.

           K. N. SINGH, N. M. SINGH, H. B. SHARMA and P R ALAPATI,

          JOURNAL OF ADVANCES IN PHYSICS, 8(3),2176 (2015)

04.     Comparative low frequency dielectric study   and Heptyloxybenzylidenehexylaniline.

            K. N. SINGH, BINODGOGOI, N. M. SINGH, H. B. SHARMA AND and P. R. ALAPATI.

            INDIAN JOURNAL OF PHYSICS; Online version published in Nov., 2015

05.      On the Dipole – Dipole correlation and Dielectric anisotropy of some N(4-n-alkyloxy benzylidene)-4’-alkylaniline      

            compounds doped with Silver Nanoparticles.

K. N. SINGH, BINODGOGOI, N. M. SINGH, RAGINIDUBEY, L. R. SINGH, H. B. SHARMA and P. R. ALAPATI

            MOL. CRYST. LIQ. CRYST., 625, 106-116 (2016)  ;ISSN No.:1542-1406

06.      Dielectric properties of highly polar liquid  crystalline material showing various types of  layered structures

            RAGINI DUBEY, A. MISHRA, K. N. SINGH, R. DHAR and P. R. ALAPATI

            LIQUID CRYSTALS, 43,        (2016); ISSN No.: 0267-8292

07.       Dielectric study on the alignment or orientation of N(4-n-heptyloxy benzylidene)-4’-n-butyl aniline and the anomalous                 dielectric behaviour in the Smectic G phase.

            K. N. SINGH, BINODGOGOI, RAGINIDUBEY, N. M. SINGH, H. B. SARMA and P. R. ALAPATI

            MOLECULAR CRYSTALS and LIQUID CRYSTALS, 626, 130-140 (2016) ; ISSN No.:1542-1406

08.       Negative birefringence in the higher homologues of 5O.m series of liquid crystals

            D. BHATTACHARJEE, P. R. ALAPATI and AYON BHATTACHARJEE

            JOURNAL OF PHYSICAL CHEMISTRY B,  Online Version Published  on 7^th June 2016

09       Negative optical anisotropic behaviour of two higher homologues of 5O.m series of liquid crystals

            D. BHATTACHARJEE, P. R. ALAPATI and AYON BHATTACHARJEE

            JOURNAL OF MOLECULAR LIQUIDS, Online Version Published in June, 2016

10.       Molecular polarization, order parameter and dielectric study of a dimeric compound

            D. BHATTACHARJEE, P. R. ALAPATI and AYON BHATTACHARJEE

            JOURNAL OF MOLECULAR LIQUIDS, Online Version Published in October, 2016

Research Papers Presented at International Conferences but not Published in any Journal

1. Density studies in binary mixtures of polar and weakly polar compounds

P. R. ALAPATI,  N. V. S. RAO, V. G. K. M. PISIPATI and D. SARAN

Presented at the  X international liquid crystal conference held at York, U.K. during 31 July - 4 Aug. 1984

2. On the viscoelastic properties of symmetric nematic dimeric liquid crystals

P. R. ALAPATI,  C. J. DUNN  and G. R. LUCKHURST

Presented at 15^th  International Liquid Crystal Conference,  3 - 8 July 1994,  BUDAPEST, HUNGARY     (1994)

3. Structural studies of symmetric dimeric liquid crystals

P. R. ALAPATI  and  G. R. LUCKHURST

Presented at the 16^th International Liquid Crystal Conference,  23-28 June 1996,  Kent State University, OHIO,  USA       (1996)

• Chairman/Member of several Institute Level Committees: Purchase, Inquiry, Entrance/Admissions/Counseling, Academic, Drafting, Administration etc.
• Chairman/member of few Committees for Scrutiny of applications for both teaching and non-teaching positions at the Institute
• Member of Selection Committees for recruitment of teaching positions at NERIST, APPSC, RGU etc.,
• Member of Selection Committees for recruitment of non-teaching positions, DPC, MACP etc.,
• Ph. D thesis examiner/adjudicator for other universities/institutes.
• Viva – Voce examiner for Ph. D degree award by other institutes.
• Research paper reviewer for Elsevier and Taylor & Francis publishers.
• Research project evaluator (submitted by other scientists for possible funding) for DST, New Delhi.
• Member of Doctoral Committee of the Department of Physics, NIT, Shillong.
• Member of DPGC of the Department of Physics, Rajiv Gandhi University, Itanagar
• Member of National advisory council (in few cases) and National Organising committees of National level conferences organised at other universities/institutes
• Vice President of NERIST Faculty and Officers Club during 1996-97
• President of NERIST Faculty Association during 2008-2010
• National Loan Scholarship awardee of Govt. Of Andhra Pradesh based on Merit in SSC (class X) board examinations during 1975 – 1984
• University Research Fellowship Awardee of  Nagarjuna University, from 1984 – Dec. 1985
• Senior Research Fellowship Awardee of CSIR, New Delhi from Jan. 1986 – April, 1988