61 results on '"N. Mamatha"'
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52. Economics analysis on yield of cotton as influenced by sulphur and micronutrients
- Author
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H. S. Ramesh and N. Mamatha
- Subjects
Crop ,Crop residue ,Nutrient ,Agronomy ,Crop yield ,engineering ,Soil classification ,Fertilizer ,engineering.material ,Micronutrient ,Plant nutrition ,Mathematics - Abstract
Cotton is still the principal commercial crop touching the country’s economy at several points. It is also an important commercial crop of Karnataka and cultivated on an area of 4.78 lakh ha with a production of 6.77 lakh bales (Anonymous, 2003). With the introduction of high yielding and fertilizer responsive varieties, the practices of using large amounts of high analysis macronutrient fertilizers with much decreased use of organic manures and little recycling of crop residues led to micronutrient hunger in many crops. Generally the need of the micronutrients has been essentially and entirely met through its native reserve in the soil (Singh, 1999), Inspite of liberal application of N, P and K fertilizers, normal growth of high yielding varieties of crop could not be achieved due to little appreciation of the use of secondary and micronutrients. High fertilizer responsive varieties can express their full yield potential only when limiting trace elements fertilizers are also applied along with NPK fertilizers. Since, information on economic aspects of production of cotton (RAHB-87) is lacking in northern transitional zone (Zone-8) of Karnataka, the present study was carried out to know the optimum dose of nutrients, required to produce maximum yield which economically viable. A field experiment was conducted on medium black soil having initial organic carbon content of 0.58 per cent, pH 7.30, available nitrogen phosphorus and potassium content of soil were 315, 22.0, 390 kg/ha, respectively. The experiment was laid out in randomized block design in 3 replications with nine treatment combinations. Results revealed that treatment (T 9 ) receiving combined application of sulphur, iron, zinc each at 50 kg per ha recoded highest seed cotton yield (25.12 q/ha) which was on par with treatment (T 8 ) receiving combined application of sulphur, iron and zinc each at 25 kg per ha. These two treatments were significantly superior over control. Economic analysis of the system revealed that, Economics analysis on yield of cotton as influenced by sulphur and micronutrients
- Published
- 2016
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53. Development of Novel Architectures for Patient Care Monitoring System and Diagnosis
- Author
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M. N. Mamatha
- Subjects
medicine.medical_specialty ,Computer science ,business.industry ,Group method of data handling ,SIGNAL (programming language) ,Throughput ,Upload ,Data acquisition ,medicine ,Wireless ,Intensive care medicine ,business ,Field-programmable gate array ,Bitstream ,Computer hardware - Abstract
Designing a highly efficient patient care and monitoring system which can handle multiple patients and multiple parametric measurements from every single patient in real time will lead in improvising the data handling capability at Central Nurse Stations (CNS) and Decentralized Nurse Stations (DCNS). The Bio signal Data Acquisition Systems have been designed to suit patients located at CNS and DCNS in a hospital. The RTL design of Bio signal Data Acquisition System was successfully simulated using Model sim. The design was placed and routed using Xilinx ISE 8.2i tool and the bit stream generated is used for downloading into the targeted FPGA. The FPGA used is XC3S400-5ft256, common for both schemes shown. At 50 MHz operation, the system is capable of wireless communication of 32 numbers of Bio signals up to 400,000 bits/s although the maximum frequency of operation of this design is 89 MHz reported by Xilinx ISE tool. This system is truly upgradeable, be it in extending the capabilities to more number of patients or in improving throughput.
- Published
- 2015
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54. Satellite Image Feature Extraction Using Neural Network Technique
- Author
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Y. N. Mamatha, N. S. Sarvesh Babu, and T. Karthikeya Sharma
- Subjects
Artificial neural network ,business.industry ,Computer science ,Feature extraction ,Search engine indexing ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Pattern recognition ,Image processing ,Content-based image retrieval ,Backpropagation ,Artificial intelligence ,Texel ,business ,Focus (optics) ,ComputingMethodologies_COMPUTERGRAPHICS - Abstract
There has been a focus on developing image indexing techniques which have the capability to retrieve image based on their contents. The main feature extraction methods are content Based Image Retrieval (CBIR) also known as query by Image content (QBIC). This paper presents a technique to derive the colors, shapes, textures, or any other information that can be derived from a satellite image Using Texture filters and realizing it with artificial neural networks. This image processing technique are been utilized to identify important urban features such as buildings and gardens and rural features such as natural vegetation, water bodies, and fields. Textures are represented by Texel, which are then placed into a number of sets, depending on how many textures are detected in the image.
- Published
- 2013
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55. Smart sensor design and analysis of brain machine interface using labview
- Author
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M. N. Mamatha, S. Ramachandran, and M. Chandrasekaran
- Subjects
Virtual instrumentation ,business.industry ,Computer science ,Signal ,Intelligent sensor ,Data acquisition ,Transmission (telecommunications) ,Robot ,Wireless ,Computer vision ,Artificial intelligence ,business ,Computer hardware ,Brain–computer interface - Abstract
Communication for physically challenged people is indispensable for their day to day activities. This paper presents the hardware design of smart sensors for brain machine interface which is used for acquiring the bio potential signals from three different sensors such as EEG, Eyeball and the Eye blink signals. The design was analyzed and validated using Lab View. Bio-signals from the forehead, scalp and eye movements are acquired and the artifacts generated by spurious signals are filtered out using band pass filters. Transmission and reception of these signals over wireless media assists the partially paralytic patients by taking these signals as commands and, to be independent in doing their daily chores The paper aims in exploiting the qualities of MULTISIM functionality, design complexity, and hence the design time of these signal circuits are significantly reduced and a comparative analysis is done to prove the design of the hardware developed is accurate to an extent of 90%.
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- 2011
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56. Communication Based Acquisition of Biopotentials for Patients with Cognitive Abilities
- Author
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M. N. Mamatha and S. Ramachandra
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Focus (computing) ,medicine.diagnostic_test ,Speech recognition ,media_common.quotation_subject ,Ranging ,Cognition ,Electroencephalography ,Transmission (telecommunications) ,Perception ,medicine ,Eye tracking ,Psychology ,Human communication ,media_common - Abstract
Vision and speech are the two natural ways of human communication. The major challenge is to create reliable perceptual technologies that allow applications of communication with multiple modalities. There are many options for restoring this function and, human machine interface is one of its kinds, which is the focus of the present work. This paper presents the design and development of a human-computer interaction hardware using TE765 and TE763 biosensors to acquire EEG and eyeball movements. The work also involves the design of communication channel for transmission and reception of signals so as to control the interfaced devices. The salient features of these devices are voice annunciation for prompting proper action by persons assisting the patient and alarm activation for fear, stress and emotions detected in the paralyzed or semi paralyzed subjects. The designed system is capable of handling EEG signals ranging from 0 to 200 μV with a band width of 2 Hz to 1 KHz. The accuracy of the system is 0.3 μV RMS.
- Published
- 2010
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57. Detection of Melanoma Cancer Cell by Designing a SPR Based Biosensor.
- Author
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N Chandra Shekar, B S Rakshitha, N Mamatha, H Chetan, M R Jyoti, and S Suganya
- Published
- 2019
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58. Evaluation of Transverse Strength of Heat Cure Denture Bases Repaired with Different Joint Surface Contours: An In Vitro Study.
- Author
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Mamatha N, Madineni PK, Sisir R, Sravani S, Nallamilli S, and Jyothy JR
- Subjects
- Denture Repair, Materials Testing, Denture Bases, Hot Temperature
- Abstract
Aim: The present in vitro study aimed to evaluate the transverse strength of heat cure acrylic denture base resins repaired with three different joint surface designs, repair material being the glass-fiber-reinforced self-cure repair material along with surface pretreatment., Materials and Methods: A total of 40 heat cure resin specimens were fabricated and finished to a size of 64 mm × 10 mm × 2.5 mm. These specimens were divided into four groups of 10 each, with butt, round, and bevel repair surface joints, respectively, along with the control group. After the specimens were cut in the middle for the repair procedure to proceed, the aforementioned joint surface contours were prepared for groups I, II, and III, respectively, treated with dimethyl chloride for 30 seconds, and the repair was done with E-glass-fiber-reinforced self-cure repair material., Results: The mean transverse strength of the control group was 100.37 N, which was highest (significant p value of <0.05), followed by group III (bevel joint) 54.23 N, group I (butt joint) 53.93 N, and group II (round joint) 44.55 N., Conclusion: Distribution of stresses evenly in the repair region will be achieved by the proper selection of the joint surface contour, and this study showed that the 45° bevel joint was an appropriate selection along with promising repair material and surface pretreatment., Clinical Significance: Clinically, in the event of repairing a broken denture, a rapid and economically convenient material with superior physical and mechanical properties is important to maintain the adequate transverse strength of the repaired denture. Glass-fiber-reinforced autopolymerizing resin, with a 45° bevel joint design of the broken surfaces and surface pretreatment proved to reduce stress concentration, improving the transverse strength of the repaired heat cure denture base resins.
- Published
- 2020
59. Effect of Different Dentifrices on the Surface Roughness of Acrylic Resins: An in vitro Study.
- Author
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Gautam N, Sharma A, Bashir U, Rapolu S, Mamatha N, and Sravani S
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- In Vitro Techniques, Materials Testing, Surface Properties, Toothbrushing, Acrylic Resins chemistry, Dentifrices chemistry, Denture Cleansers chemistry
- Abstract
Aim: This study was undertaken to study the effect of three most commonly used dentifrices for denture cleaning and to find out any positive association between number of strokes by toothbrush and surface roughness of acrylic resin., Materials and Methods: About 40 acrylic rectangular blocks with high finish were polished until surface roughness was calculated as 0 pirn. The materials tested were distilled water as a control group, Patanjali Dant Kanti, Colgate Total Cream, and Cleansodent as dentifrices. Stroking was done with dentifrices, and surface roughness readings were recorded at 1,000, 9,000, and 18,000 strokes., Results: Patanjali Dant Kanti was found to have maximum abrasive potential followed by Colgate Total Cream, followed by Cleansodent and least by distilled water., Conclusion: Surface roughness was found to be directly proportional to the type, size, and fineness of the abrasive component used; the professional denture cleanser (Cleansodent) has less abrasive potential than the regular toothpastes. Among those tested, the highest abrasive potential was found in Patanjali Dant Kanti and lowest by Cleansodent (denture cleanser)., Clinical Significance: The patient as well as dentist should choose the dentifrice with utmost care noting the size and type of abrasives used. Washing the dentures normally with water without toothbrush daily and cleaning of dentures once in 10 to 15 days with a soft toothbrush and professional denture cleanser should be the line of maintenance of dentures.
- Published
- 2017
- Full Text
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60. Articaine for surgical removal of impacted third molar; a comparison with lignocaine.
- Author
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Shruthi R, Kedarnath N, Mamatha N, Rajaram P, and Bhadrashetty D
- Abstract
Aim: Articaine is an amide local anesthetic that differs from other agents of its group due to the presence of thiophene ring instead of a benzene ring. Some researchers claim that articaine is superior to lidocaine in its biologic profile. The aim of the study is to compare the efficacy of articaine with that of lidocaine which has proven efficacy., Materials and Method: This study was done on 50 subjects; 25 of them received 4 % articaine HCl with 1:100000 epinephrine and the next 25 received 2% lignocaine HCl with 1:100000 epinephrine. Time of injection, onset of anesthesia, amount of anesthetic injected were recorded. Efficacy was determined using visual analog scale. The values were statistically analyzed., Results: The mean onset time of anesthesia in study group was 2.07 ± 0.22 and 2.18 ± 0.26 minutes in comparison group. A mean duration of 4.28 +0.78 hours was seen with articaine group and 3.51 + 0.45 hours with the lignocaine group. No statistical difference between the two groups with regard to pain experience., Conclusion: Articaine has similar efficacy as that of lignocaine with slightly longer duration and can be used as an alternative to lignocaine in third molar surgeries., Clinical Significance: Increased availability of local anesthetics has improved interest in research about dental pain control. a quest for new methods of pain reduction is always justified. How to cite this article: R Shruthi, S N Kedarnath, S Mamatha N, Rajaram P, Dinesh B. Articaine For Surgical Removal of Impacted Third Molar; A Comparison With Lignocaine. J Int Oral Health 2013; 5(1):48-53.
- Published
- 2013
61. TMJ imaging by CBCT: Current scenario.
- Author
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Krishnamoorthy B, Mamatha N, and Kumar VA
- Abstract
Radiographic examination forms an integral component of the clinical assessment routine in patients with temporomandibular joint disorders (TMJ). There are several imaging modalities to visualize the TMJ. Cone beam computed tomography (CBCT) is a developing technique that is being increasingly used in dentomaxillofacial imaging due to its relatively low-dose high-spatial-resolution characteristics. Research in TMJ imaging has been greatly inspired by the advent of CBCT. In this paper we aim to discuss the present scenario of the role of CBCT in TMJ imaging.
- Published
- 2013
- Full Text
- View/download PDF
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