14N NQR, relaxation and molecular dynamics of the explosive TNT
نویسندگان
چکیده
منابع مشابه
(14)N NQR, relaxation and molecular dynamics of the explosive TNT.
Multiple pulse sequences are widely used for signal enhancement in NQR detection applications. Since the various (14)N NQR relaxation times, signal decay times and frequency of each NQR line have a major influence on detection sequence performance, it is important to characterise these parameters and their temperature variation, as fully as possible. In this paper we discuss such measurements f...
متن کاملInvestigation of Wavelet-based Enhancements to Nuclear Quadrupole Resonance Explosives Detectors*
Nuclear Quadrupole Resonance (NQR) is effective for the detection and identification of certain types of explosives such as RDX, PETN and TNT. In explosive detection, the NQR response of certain 14N nuclei present in the crystalline material is probed. The 14N nuclei possess a nuclear quadrupole moment which in the presence of an electric field gradient produces an energy level splitting which ...
متن کاملthe study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media
امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
NQR Pressure Studies of Molecular Dynamics and Phase Transitions
High pressure technique applied in studies of NQR frequency and quadrupole relaxation has been used for deriving information on the dynamical properties of crystals and the nature of their phase transitions. The ^Cl NQR pressure studies have been carried out and a detailed analysis is given for the following topics: 1) Symmetric and asymmetric hydrogen bonded systems under high pressure. 2) NQR...
متن کاملTnT: T Antigen and Telomerase, an Explosive Route to Cancer
Early this century when Hanahan and Weinberg enumerated the six phenotypes that they defined as the ‘Hallmarks of Cancer’, they segregated genomic instability as ‘an enabling characteristic’ rather than defining it as a hallmark. Reading more carefully, we learn that they have set genomic instability aside as a mechanism ‘that enables evolving populations of premalignant cells to reach these si...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Solid State Nuclear Magnetic Resonance
سال: 2015
ISSN: 0926-2040
DOI: 10.1016/j.ssnmr.2015.09.009