Jayanta Chakraborty

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Exploitation of crystal symmetry is very important in formulation and efficient simulation of population balance models for crystal morphology. This work presents the first population balance model for morphology distribution considering the diversity of symmetry. In this model, we analyze the symmetry of a population of crystals using group theory and(More)
A new technique for the measurement of 3D crystal morphology and identification of its polymorph using tomo-graphic images is proposed. Confocal microscopy is used for the first time to obtain tomographic images of crystals that are coated with a suitable fluorescent dye. A convex polyhedron is fitted through a stack of tomographic images of a crystal to(More)
Detailed modeling of a grinding mill can be achieved through Markov chain models without involving lengthy computations. However, estimation of the key parameters of the model, elements of the Markov transition matrix, using observable quantities is not trivial. This powerful modeling tool can find wide applicability in operation and control of industrial(More)
BACKGROUND Maintenance of adequate depth of anaesthesia in spine surgery is vital to prevent awareness, to reduce stress response and possible autonomic instability frequently associated with spine surgery. Dexmedetomidine, a α2-adrenoceptor agonist with analgesic and sedative adjuvant property has been found to reduce dose requirement of multiple(More)
We present here a case of 17-year-old boy from Kolkata presenting with obesity, bilateral gynecomastia, mental retardation, and hypogonadotrophic hypogonadism. The patient weighed 70 kg and was of 153 cm height. Facial asymmetry (unilateral facial palsy), gynecomastia, decreased pubic and axillary hair, small penis, decreased right testicular volume,(More)
Motor neuron disease (MND) typically affects upper and lower motor neurons without any sensory involvement. Regional anaesthesia is preferred in motor neuron disease patients to avoid aspiration and possibility of prolonged postoperative ventilation following general anaesthesia. As microlaryngeal surgery in a motor neuron disease patient needed airway(More)
In this work, we introduce mechanistic considerations in nonlinear milling of particulate material. We show that the mobility of the powder can have a significant effect on the breakage frequency. During grinding, the change in particle size leads to changes in the mobility of the powder which in turn alters the breakage rate. The mechanistic modeling,(More)
Usefulness of sensor network applications in human life is increasing day by day and the concept of wireless connection promises new application areas. Sensor network can be very beneficial in saving human life from terrorist attacks causing explosion in certain areas leading to casualties. But realization of the sensor network application in explosive(More)
IN recent years the monitoring of plasma drug levels carried out with a view to relating these with the clinical response produced by drugs has emerged as one of the expanding areas of medicine. There are now a number of examples of drugs where this approach has provided a basis for the appropriate adjustment of the dosage given and contributed to the(More)
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