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Search Results: 1 - 10 of 140852 matches for " Krishna Chaitanya K "
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Secure File Multi Transfer Protocol Design  [PDF]
Murali Krishna, Pradeep Jamwal, K. S. R. Chaitanya, B. Vinod Kumar
Journal of Software Engineering and Applications (JSEA) , 2011, DOI: 10.4236/jsea.2011.45034
Abstract: As the internet grows in popularity and therefore also in size more and more transmission takes place mainly because the technology is more readily available and applications have become more user friendly allowing entry to less sophisticated user over a broad spectrum. Most data transfer are mainly text based not secure and vulnerable to various forms of security risks. So the model that uses SSH for securing channel like intranet/internet which provides client authentication encryption and decryption with high degree of security by transferring the data in an encrypted format, up on this model enhances the efficiency of data transmission by encrypting or decrypting the data with AES in Counter Mode. AES is a symmetric key encryption standard. Moreover the permutation controlled by data can be performed at high speed in generic cpu. This scheme also expands the key space without costing more to run. And also finally through the combination of secure shell (ssh) and AES (Counter Mode) not only enhances the security of communication channel. It also provides various applications like remote user creation, remote user deletion, remote command execution, remote system shutdown, remote file transfer applications in a highly secure manner.
Angiosomes of medial cord of brachial plexus
D. Suseelamma,S. Deepthi,K. Krishna Chaitanya,H. R. Sharada
International Journal of Research in Medical Sciences , 2013, DOI: 10.5455/2320-6012.ijrms20130508
Abstract: This anatomical study analyzed the neurovascular relationship of the brachial plexus. Ten formalized specimens of brachial plexuses were examined after injection of lead oxide in to the subclavian artery. The vascular, anatomical features of the brachial plexus were documented .The specimens were analyzed by dissection method, subjected for microscopic study. The vascular supply was markedly rich, often with true anastomotic channels found within the nerves. There was much variation in supply, depending on the branching pattern of subclavian artery. [Int J Res Med Sci 2013; 1(2.000): 79-82]
Radix formation between median and musculocutaneous nerves: embryological, morphological and clinical correlation
Suseelamma D,Krishna Chaitanya K,Sharada HR,Deepthi S
International Journal of Research in Medical Sciences , 2013, DOI: 10.5455/2320-6012.ijrms20130803
Abstract: In ours study we report radix formation between median nerve and musculocutaneous nerves. The study was conducted in the Department of Anatomy, Kamineni Institute of Medical Sciences, Narketpally, Nalgonda Dt., Andhra Pradesh, India. During routine cadaveric dissections in the upper limbs, we observed an anastomosis (radix) between median and musculocutaneous nerves in the arm. Variations in the origin, course, branching pattern, communications was observed. These variations have clinical significance in brachial plexus block and surgical procedures. [Int J Res Med Sci 2013; 1(3.000): 222-225]
A comparative evaluation of dimensional stability of three types of interocclusal recording materials-an in-vitro multi-centre study
Sampath Tejo, Anil G Kumar, Vivekanand S Kattimani, Priti D Desai, Sandeep Nalla, Krishna Chaitanya K
Head & Face Medicine , 2012, DOI: 10.1186/1746-160x-8-27
Abstract: The aim of this multicenter research is to evaluate the time dependent linear dimensional stability of three types of interocclusal recording materials; which gives very clear idea to clinicians in regard to its usage in routine practice and recommendations for usage of the different materials. Also to find out ideal time for articulation of three types of interocclusal recording materials with accuracy.Commercially available and ADA approved Polyether bite registration paste (Ramitec), Poly vinyl siloxane bite registration paste (Jetbite) and Zinc oxide eugenol (ZOE) bite registration paste (Super bite) were used in the study.A stainless steel die was made according to modified American dental Associations (ADA) specification no. 19. Each one of the tested materials were manipulated according to manufacturers’ instructions. The materials separated from die, 3-mins after their respective setting time, resulted in disks of standard diameter. Two parallel lines and three perpendicular lines reproduced on the surface. The distance between two parallel lines was measured at different time intervals i.e. 1 hour, 24, 48 and 72 hours by using travelling microscope (magnus) and compared with standard die measurements made according to ADA specification no.19 to find out the dimensional stability of these interocclusal recording materials. Total 120 samples were made for observation and results were subjected to statistical analysis. Statistical analysis was performed using analysis of variance (ANOVA) and then Tukey’s Honestly Significant Difference (HSD) test for comparison among groups at the 0.05 level of significance. After statistical analysis of the data, results were obtained and analyzed for interpretation.The results shows significant difference between the dimensional stability of all three material at different intervals with p-value <0.05. Comparatively the polyether bite registration material showed less distortion with good dimensional stability compared to Po
International Journal of Engineering Science and Technology , 2010,
Abstract: Public Key Cryptography with system of non-homogeneous linear equations is a two-stage secured algorithm. We generate a system of non-homogeneous linear equations and using this system, we describealgorithms for key generation and public encryption whose security is based on solving system of equations over the ring of integers which comes under the NP-Complete problems.
Modified Newton's rings: II
T. Sai Chaitanya,Rajiv kumar,V. Sai Krishna,B Shankar Anandh,K. S. Umesh
Physics , 2010,
Abstract: In an earlier work (Shankar kumar Jha, A Vyas, O S K S Sastri, Rajkumar Jain & K S Umesh, 'Determination of wavelength of laser light using Modified Newton's rings setup', Physics Education, vol. 22, no.3, 195-202(2005)) reported by our group, a version of Newton's rings experiment called Modified Newton's rings was proposed. The present work is an extension of this work. Here, a general formula for wavelength has been derived, applicable for a plane of observation at any distance. A relation between the focal length and the radius curvature is also derived for a plano-convex lens which is essentially used as a concave mirror. Tracker, a video analysis software, freely downloadable from the net, is employed to analyze the fringes captured using a CCD camera. Two beams which give rise to interference fringes in conventional Newton's rings and in the present setup are clearly distinguished.
Discussion of various models related to cloud performance
Chaitanya Krishna Kande
Computer Science , 2015,
Abstract: This paper discusses the various models related to cloud computing. Knowing the metrics related to infrastructure is very critical to enhance the performance of cloud services. Various metrics related to clouds such as pageview response time, admission control and enforcing elasticity to cloud infrastructure are very crucial in analyzing the characteristics of the cloud to enhance the cloud performance.
Temporal Prediction of Aircraft Loss-of-Control: A Dynamic Optimization Approach  [PDF]
Chaitanya Poolla, Abraham K. Ishihara
Intelligent Control and Automation (ICA) , 2015, DOI: 10.4236/ica.2015.64023
Abstract: Loss of Control (LOC) is the primary factor responsible for the majority of fatal air accidents during past decade. LOC is characterized by the pilot’s inability to control the aircraft and is typically associated with unpredictable behavior, potentially leading to loss of the aircraft and life. In this work, the minimum time dynamic optimization problem to LOC is treated using Pontryagin’s Maximum Principle (PMP). The resulting two point boundary value problem is solved using stochastic shooting point methods via a differential evolution scheme (DE). The minimum time until LOC metric is computed for corresponding spatial control limits. Simulations are performed using a linearized longitudinal aircraft model to illustrate the concept.
Fuzzy Logic Based Wind Connected UPFC to Mitigate Voltage Sag and Reactive Power Compensation in a Transmission System
Krishna Chaitanya Diggavi,M. Ramu
International Journal of Electrical and Power Engineering , 2012, DOI: 10.3923/ijepe.2012.94.99
Abstract: Power flow is one of the major problems in a transmission system. When a fault occurs in a transmission system there is said to be a drop in the voltage. Voltage sag is one of the most severe problems to be dealt with as it causes severe process disruptions and results in substantial economic loss. Decrease/increase of reactive power is also one of the main problem. FACTS devices are used to control the power flow to increase the transmission capacity and to optimize the stability of the power system. One of the most widely used FACTS devices is Unified Power Flow Controller (UPFC). Here, the sending end voltage is generated by the wind generation system. In this study, researchers are comparing two different controller s performance. The two controllers are PI and Fuzzy. On comparing, researchers can say that Fuzzy Logic Controller (FLC) based UPFC shown better voltage sag compensation than PI controller based UPFC. Matlab/Simulink is used to create the PI and FLC and to simulate UPFC Model.
Bilateral Transplantation of Allogenic Adult Human Bone Marrow-Derived Mesenchymal Stem Cells into the Subventricular Zone of Parkinson’s Disease: A Pilot Clinical Study
N. K. Venkataramana,Rakhi Pal,Shailesh A. V. Rao,Arun L. Naik,Majahar Jan,Rahul Nair,C. C. Sanjeev,Ravindra B. Kamble,D. P. Murthy,Krishna Chaitanya
Stem Cells International , 2012, DOI: 10.1155/2012/931902
Abstract: The progress of PD and its related disorders cannot be prevented with the medications available. In this study, we recruited 8 PD and 4 PD plus patients between 5 to 15 years after diagnosis. All patients received BM-MSCs bilaterally into the SVZ and were followed up for 12 months. PD patients after therapy reported a mean improvement of 17.92% during “on” and 31.21% during “off” period on the UPDRS scoring system. None of the patients increased their medication during the follow-up period. Subjectively, the patients reported clarity in speech, reduction in tremors, rigidity, and freezing attacks. The results correlated with the duration of the disease. Those patients transplanted in the early stages of the disease (less than 5 years) showed more improvement and no further disease progression than the later stages (11–15 years). However, the PD plus patients did not show any change in their clinical status after stem cell transplantation. This study demonstrates the safety of adult allogenic human BM-MSCs transplanted into the SVZ of the brain and its efficacy in early-stage PD patients. 1. Introduction Shaking Palsy (Paralysis Agitans) or Parkinson’s disease (PD) was originally described by James Parkinson in 1817 as “Involuntary tremulous motion, with lessened muscular power, in parts not in action and even when supported; with a propensity to bend the trunk forwards, and to pass from a walking to a running pace: the senses and intellects being uninjured” [1]. Ever since the first description, scientists have pursued the causes and treatment of the disease. It is a chronic neurodegenerative disorder due to selective loss of dopaminergic neurons in the Substantia Nigra (SN) and the presence of proteinaceous inclusions known as Lewy bodies [2]. PD is recognized as one of the most common neurologic disorders, affecting approximately 15% of individuals older than 60 years. Between the ages of 75 and 84, that percentage may rise to almost 30%. The causes of idiopathic Parkinson-disease (IPD) are believed to be a combination of genetic and environmental factors. Recent studies indicate that the pathogenesis includes a cascade of molecular and cellular events, oxidative stress, and release of reactive oxygen species (ROS), apoptosis, dysfunctioning of mitochondria and of the protein degrading system. Even immune-mediated mechanisms are being suggested for the progression and to explain the drug resistance that happens with time [2, 3]. The cardinal symptoms for PD are bradykinesia, rigidity, tremor, and instability which can be treated with dopamine
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