139 research outputs found

    Design and Development of an Autonomous Car using Object Detection with YOLOv4

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    Future cars are anticipated to be driverless point-to-point transportation services capable of avoiding fatalities To achieve this goal auto-manufacturers have been investing to realize the potential autonomous driving In this regard we present a self-driving model car capable of autonomous driving using object-detection as a primary means of steering on a track made of colored cones This paper goes through the process of fabricating a model vehicle from its embedded hardware platform to the end-to-end ML pipeline necessary for automated data acquisition and model-training thereby allowing a Deep Learning model to derive input from the hardware platform to control the car s movements This guides the car autonomously and adapts well to real-time tracks without manual feature-extraction This paper presents a Computer Vision model that learns from video data and involves Image Processing Augmentation Behavioral Cloning and a Convolutional Neural Network model The Darknet architecture is used to detect objects through a video segment and convert it into a 3D navigable path Finally the paper touches upon the conclusion results and scope of future improvement in the technique use

    Wound Healing Plants of Jalgaon District of Maharashtra State, India

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    Jalgaon District of Maharashtra state (India) has a great heritage and rich in various green and semi evergreen species. Record of 3347 species from 201 families appeared in earlier literature from Jalgaon District. A list of 283 wound healing plants of Indian origin is compiled; out of these 224 plants are native of Maharashtra, a 131 plants among them occurred in Jalgaon District, which are in practice by local herbalist, Vaidyas and nonregistered medical practitioners and Mukhiya (Head) of tribal community. Taxonomical distribution showed 93.63% dicot and 6.37% monocot and a single aquatic plant. The investigation revealed that wound healing natural products usually localized in root (27% ) \u3e leaves (20%) \u3e stem \u3e seed \u3e whole plant \u3e fruit \u3e flower \u3e rhizome \u3e tuber \u3e shoot \u3e stamen \u3e grain \u3e gall \u3e filament and plant product like latex (46%), oil (40%) , gum and resin (7%) as evident from this survey. Most of the remedies consisted of either single plant part or combination. Methods of preparation varies and they are species specific viz: plant parts applied as a paste, juice extracted from the fresh plant parts, powder made from fresh or dried plant parts, some fresh plant parts, and decoction. In this study the most dominant family was Leguminosae and roots were most frequently used for wound healing. Here an attempt has also been made to work out on plants belonging to Jalgaon District in order to exploit them for preparation of ointment that can be used both in human and domestic animals

    Analysis on Software Project Staffing and Scheduling Using Ant Colony Optimization

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    Developing computer compatible and efficient techniques for software project planning are very much required and challenging in various multinational software companies. Most of the software projects are based on mainly human resources and it consists of people intensive activities. Thus proper scheduling of projects and human resource allocation is very much needed for rapid growth and development of software companies in a competitive world. In this paper a prototype based on project management system for project scheduling and human allocation is discussed. The paper discusses about the Ant Colony Optimization Algorithm (ACO) that takes into account both project scheduling and human allocation. For this the algorithm uses a task list and an employee allocation matrix. The paper consists of use of Gantt chart which displays the project schedule thus providing the project manager with the necessary project details (e.g. start date, end date, resource allocated).Thus providing the project managers the ease in functioning. The purpose of developing such a system is that it provides the software companies the flexibility in software planning. DOI: 10.17762/ijritcc2321-8169.150318

    Hands-Free Gesture and Voice Control for System Interfacing

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    The proposed system presents a simple prototype system for real-time tracking of a human head and speech recognition for hands- free mouse. This system uses a simple yet an effective Face tracking algorithm. The Haar-classifier algorithm is used to capture the frames of the face and Lucas-Kanade algorithm for marking the features of a human face. The general requirements of a real-time tracking algorithm ? it should be computationally economical, should possess the capability to perform in diverse environments and should be able to run itself with a very minimal knowledge about the preexistence of the faces in the head tracking algorithm. This system also makes use of Microsoft Speech SDK 5.1 for speech recognition. It is composed of two fundamental components ? voice recognizer and speech synthesizer. The voice recognizer is used to capture the input of voice signals and speech synthesizer is responsible for lexicon management

    Small Organic Molecule as Corrosion Inhibitors for Mitigating Metal Corrosion

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    Metal corrosion constitutes degradation of metals in the presence of favorable corrosive atmosphere. It worsens metal quality. The prevention of metal corrosion is so significant to save metals for their better utility. Corrosion inhibitors are widely used for the mitigation of metal corrosion. Small organic molecules as corrosion inhibitors are showed prominent corrosion inhibitive property because of their unique electron donating capacity to the metal orbitals. The bonding occurred between organic molecules and metals are main aspect to retard the corrosive environment toward metal

    Fluorescence based real time monitoring of fouling in process chromatography

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    A real time monitoring of fouling in liquid chromatography has been presented. The versatility of the approach has been proven by successful implementation in three case studies with an error <1%. The first application demonstrates the monitoring of protein A ligand density and foulant concentration for assessing performance of protein A chromatography resin during purification of monoclonal antibodies. The observations have been supported from LC-MS/MS studies that were independently performed. The second application involves monitoring of foulant deposition during multimode cation exchange chromatography based purification of human serum albumin. Finally, in the third application, monitoring of foulants during multimodal hydrophobic interaction chromatography of recombinant human granulocyte colony stimulating factor is demonstrated. In all three cases, it is observed that the fluorescence intensity consistently increases with resin reuse as more foulants are deposited over time. The proposed approach can be readily used for real time monitoring of fouling and process control

    Introduction to Laplace Transform with its Application in Engineering Signals and Electrical Circuit

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    An introduction to Laplace transform and its application in engineering field is the topic of this study. It deals with what is the Laplace transform, and what are the applications of Laplace transform. The definition of Laplace transform is given and most of the applications are mentioned. A few practical life applications are also given in the manuscript. Laplace transform is a powerful mathematical tool used by the engineers and scientists. It is useful to solve linear differential equations with given initial conditions by using algebraic methods, to solve the electrical circuits with given initial conditions, useful in quantum physics. The concept of Laplace transform are applied in area of science and technology.

    Nationwide surveillance for Telmisartan alone or with combination at real world therapy in Indian patients with hypertension (START)

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    Background: Angiotensin receptor blockers (ARBs) are amongst the most preferred class of antihypertensive as reported at various evidences or guidelines. However, choice amongst ARBs differs between practicing physicians in real-life scenario. This survey aimed to understand the usage preferences of telmisartan therapy alone and in combination for treating hypertension (HT) among practitioners at various clinical settings in real-life scenario in India.Methods: A cross‑sectional survey was conducted with a pre-validated survey questionnaire consisting of 15 questions pertaining to the telmisartan and its combination usage in HT management. Total 498 registered medical practitioners (mostly physicians and cardiologists) had participated in survey. They were approached for seeking their perception, opinions, and prescribing behaviour. Categorical data was summarized by number (n) and percentage (%) in each category. Data were summarised in frequency tables.Results: Key findings from the data analysed were as follows: Around 20-40% of patients been reported to have co-morbid hypertension and diabetes as reported by majority of the physicians. Preferred class of drug in patients with hypertension with diabetes reported to be ARB. Around 90.36% of doctors reported that telmisartan was the most preferred ARB in patients with hypertension associated with high cardiovascular risk. Around 90.76% of doctors reported for their preference for telmisartan in patients with hypertension for 24-hr BP control. Around 82.93% of doctors preferred telmisartan in patients with hypertension and stroke/post-MI status.Conclusions: Indian healthcare practitioners prefer telmisartan as the most preferred ARB either alone or in a combination in patients with hypertension, including those with comorbidities

    Improved functionalization of oleic acid-coated iron oxide nanoparticles for biomedical applications

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    Superparamagnetic iron oxide nanoparticles can providemultiple benefits for biomedical applications in aqueous environments such asmagnetic separation or magnetic resonance imaging. To increase the colloidal stability and allow subsequent reactions, the introduction of hydrophilic functional groups onto the particles’ surface is essential. During this process, the original coating is exchanged by preferably covalently bonded ligands such as trialkoxysilanes. The duration of the silane exchange reaction, which commonly takes more than 24 h, is an important drawback for this approach. In this paper, we present a novel method, which introduces ultrasonication as an energy source to dramatically accelerate this process, resulting in high-quality waterdispersible nanoparticles around 10 nmin size. To prove the generic character, different functional groups were introduced on the surface including polyethylene glycol chains, carboxylic acid, amine, and thiol groups. Their colloidal stability in various aqueous buffer solutions as well as human plasma and serum was investigated to allow implementation in biomedical and sensing applications.status: publishe

    Why Are Outcomes Different for Registry Patients Enrolled Prospectively and Retrospectively? Insights from the Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF).

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    Background: Retrospective and prospective observational studies are designed to reflect real-world evidence on clinical practice, but can yield conflicting results. The GARFIELD-AF Registry includes both methods of enrolment and allows analysis of differences in patient characteristics and outcomes that may result. Methods and Results: Patients with atrial fibrillation (AF) and ≥1 risk factor for stroke at diagnosis of AF were recruited either retrospectively (n = 5069) or prospectively (n = 5501) from 19 countries and then followed prospectively. The retrospectively enrolled cohort comprised patients with established AF (for a least 6, and up to 24 months before enrolment), who were identified retrospectively (and baseline and partial follow-up data were collected from the emedical records) and then followed prospectively between 0-18 months (such that the total time of follow-up was 24 months; data collection Dec-2009 and Oct-2010). In the prospectively enrolled cohort, patients with newly diagnosed AF (≤6 weeks after diagnosis) were recruited between Mar-2010 and Oct-2011 and were followed for 24 months after enrolment. Differences between the cohorts were observed in clinical characteristics, including type of AF, stroke prevention strategies, and event rates. More patients in the retrospectively identified cohort received vitamin K antagonists (62.1% vs. 53.2%) and fewer received non-vitamin K oral anticoagulants (1.8% vs . 4.2%). All-cause mortality rates per 100 person-years during the prospective follow-up (starting the first study visit up to 1 year) were significantly lower in the retrospective than prospectively identified cohort (3.04 [95% CI 2.51 to 3.67] vs . 4.05 [95% CI 3.53 to 4.63]; p = 0.016). Conclusions: Interpretations of data from registries that aim to evaluate the characteristics and outcomes of patients with AF must take account of differences in registry design and the impact of recall bias and survivorship bias that is incurred with retrospective enrolment. Clinical Trial Registration: - URL: http://www.clinicaltrials.gov . Unique identifier for GARFIELD-AF (NCT01090362)
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