181 research outputs found

    Gray Code Composite Pattern Structured Light Illumination

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    Structured light is the most common 3D data acquisition technique used in the industry. Traditional Structured light methods are used to obtain the 3D information of an object. Multiple patterns such as Phase measuring profilometry, gray code patterns and binary patterns are used for reliable reconstruction. These multiple patterns achieve non-ambiguous depth and are insensitive to ambient light. However their application is limited to motion much slower than their projection time. These multiple patterns can be combined into a single composite pattern based on the modulation and demodulation techniques and used for obtaining depth information. In this way, the multiple patterns are applied simultaneously and thus support rapid object motion. In this thesis we have combined multiple gray coded patterns to form a single Gray code Composite Pattern. The gray code composite pattern is projected and the deformation produced by the target object is captured by a camera. By demodulating these distorted patterns the 3D world coordinates are reconstructed

    National Education Policy 2020 - Mentoring of Faculty Members towards Excellence in Higher Education Institutions

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    A mentoring approach towards excellence is proposed in this paper. This approach should be followed to develop educational leaders and faculty members to prepare HEIs to build capacity and capability to implement the provisions of the national education policy (NEP) 2020. The approach includes designing the mentoring programme at the institute level, selection and orientation of mentors, selection and orientation of mentees, mentoring process, mentees and mentors’ outcomes, and ultimate outcomes of the mentoring programme-academic, research, and excellence. The authors have noted recommendations to make the mentoring programme successful

    Impact Analysis of Wormhole and Blackhole attacks over Mobile Ad Hoc Networks

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    In this paper, we will implement two attacks over mobile ad hoc networks known as Wormhole attack and Blackhole attack. We will also analyze the impact of these attacks on data communication when using a reactive routing protocol for data communication. The reactive routing protocol used is well known Ad-hoc On- demand Distance Vector (AODV) protocol. In the Wormhole attack, at least two malicious nodes i.e., attackers disseminates wrong network information to its neighbors during the routing table formation due to which these attacks become the intermediate nodes on the selected route and drop data packets during the communication process. These two attackers form a tunnel through which they can sent the control packets to each other and if one of them are is placed near the destination then they can make sure that they are being selected on the discovered path. Due to the wrong information spread by the malicious nodes the routing tables of its nearby nodes contains untrue information about routes to various or specific destinations. When this wrong information is used for data communication during the communication process the all the data packets will go to wrong nodes and eventually dropped by attacker nodes. This decreases the network throughput and packet delivery ratio while wastes the scarce network bandwidth. On the other hand, in blackhole attack the attacker node comes on the discovered route and drop all the packets received for destination. To implement the proposed attacks, we used a network simulator called Exata simulator. The simulation results are collected for performance analysis of the underlying network. Various metrics such as packet delivery ratio and network throughput are used to show the effect of the proposed attack over a wide range of network scenarios

    STUDY OF MODULUS OF ELASTICITY PROPERTIES IN TERMS TENSION AND COMPRESSION MODE BY REINFORCEMENT OF CALCIUM CARBONATE IN DIFFERENT RATIO IN HIGH DENSITY POLYETHYLENE

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    Modulus of Elasticity - is a measure of stiffness of an elastic material. It is used to describe the elastic properties of objects like wires, rods or columns when they are stretched or compressed. Rate of change of strain as a function of stress. The slope of the straight line portion of a stress strain diagram. Tangent modulus of elasticity is the slope of the stress-strain diagram at any point. In present experiment Particular size of calcium carbonate is reinforced in high density polyethylene (HDPE) in different weight ratio .The objective of present experiment to study the tensile properties and Impact properties of reinforced blended material as compare to neat material

    ISOLATION AND SCREENING OF MARINE MICROALGAE CHLORELLA SP. _PR1 FOR ANTICANCER ACTIVITY

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    Objective: The objective of the present study includes isolation, characterization and screening of anticancerous activity against B16F10 cell line using isolated marine microalgae Chlorella sp._PR1. Methods: In this study, marine microalgae Chlorella sp._PR1 isolated and cultured using f/2 medium and anticancerous activity was assayed using MTT assay. Results: The DMSO extract of Chlorella sp._PR1 was exhibit anticancerous activity against murine melanoma B16F10 cell line. The extract exhibit reduction of cell viability up to 56% with 2µg/ml concentration. IC50 were calculated and was found that Chlorella sp._PR1 need 5.5 μg/ml of the compounds to reduce the murine melanoma B16F10 cell viability by 50%. Fluorescence activated cell sorting (FACS) analysis revealed that Chlorella sp._PR1 extract (8 µg/ml) brought significant inhibition (p<0.01) of the G0-G1 and the S phase. The extract did not seem to affect the G2-M phase. Conclusion: DMSO extract of Chlorella sp._PR1 (5.5 µg/ml) was found to be potent against murine melanoma B16F10 cell line

    A Rare Cause of Hyponatremia

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    RESPIRATORY FUNCTIONS IN TEXTILE MILL WORKERS: ROLE OF PEAK EXPIRATORY FLOW RATE

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    Background: Textile industries play a significant role in economical growth of the country. Health concern of these textile mill workers is the biggest challenge. Respiratory alterations were found in these workers with long term exposure of cotton dust. Effect of cotton dust on peak expiratory flow rate is not very well documented in the past.Aim/objective: The main objective of this study was the assessment of respiratory functions in textile mill workers along with the effect on peak expiratory flow rate in these workers.Material & Methods: 130 male textile mill workers were recruited for this study from the different sections of a textile mill. In which, 80 workers were present from exposed and remaining 50 were from non exposed area of a textile mill. 30 to 40 year of age workers with the working history of not more than 5 years, were included for the part of the study. Their Body mass index and respiratory functions were evaluated. Body mass index was calculated by using weight and height of an individual. Respiratory functions including Forced vital capacity and forced expiratory volume in 1 second was estimated by using spirometer and peak expiratory flow rate was measured by means of Wright's peak flow meter.Results: the mean values of FVC, FEV1 and PEFR were found to be significantly (<0.01) lower in exposed group of textile mill when compared non exposed groups. When these values were compared on the basis of BMI, workers with BMI>25kg/m2 were found with lower mean values of FVC, FEV1 and PEFR when compared with workers with BMI<25kg/m2. Also there was significant (<0.05) negative correlation between BMI and PEFR in both exposed group and non exposed group of a textile mill.Conclusion: Workers in textile mill, with short term exposure of cotton dust may also present with respiratory alterations which may increase with long term exposure. Safety controls such as ventilation, etc and routine health check are very much required in textile industries.Keywords: Peak expiratory flow rate, Body mass index, Textile mill.  Â

    A rare case of cervical dysgenesis presented with endometriosis and ectopic kidney

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    Cervical dysgenesis is a rare cause of obstructive amenorrhoea. We are presenting a case of a 15-year-old girl presented with primary amenorrhoea diagnosed with cervical dysgenesis with left ectopic kidney and endometriosis. The patient underwent laparoscopy followed by exploratory laparotomy with total abdominal hysterectomy with left salpingectomy followed by neovaginal creation and right ureteric D-J stenting and vaginal mould insertion. Cervical agenesis treatment should aim at the re-establishment of patency of the outflow tract. A fistulous tract with stent placement has been done in some cases but eventually, hysterectomy is required in view of recurrent and severe pelvic infection is a common problem. Ovarian function can be preserved if a hysterectomy is performed timely

    Non symptomatic hypoglycemia in cancer patients: a case series in a tertiary care cancer hospital

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    Sever hypoglycemia when blood glucose level <54 mg/dl is a grave condition and patients manifest with impaired cognitive function. Glucose is the key energy source for brain. In normal physiological condition glucose metabolized aerobically to produce energy in the form of ATP after glycolysis. In hypoglycemia like in condition of starvation or in any pathologically low blood glucose level, brain depends on ketone bodies to fulfill its energy requirement. In cancer patients due to Warburg effect there is aerobic fermentation of glucose leads to production of ketone bodies and lactic acid, which fulfill the energy requirement of brain and patients doesn't show symptoms of hypoglycemia
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