Pyro electricity
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This document discusses harnessing excess heat energy through pyroelectricity. Pyroelectric materials can generate a temporary voltage when heated or cooled. The technology uses a Peltier device, which contains a hot and cold side, to convert temperature differences into electrical energy. Some potential applications include charging phones while cooking, powering lights during power outages, and using Peltier devices to power small cooling fans as miniature air conditioners.
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The examination scheme includes two phases - Phase I exam covers units 1 and 2 for 30 marks, and Phase II exam covers units 3, 4, 5, and 6 for 70 marks. The syllabus is divided into 6 units covering topics like energy sources and conversion, thermal engineering, vehicles, manufacturing, and mechanisms.
Unit 1 provides an introduction to different energy sources like thermal, chemical, electrical, mechanical, nuclear, and gravitational energy. It also discusses the definitions of energy, power, and the forms and applications of thermal energy primarily in electricity generation.
Presentation on Thermoelectric refrigerator
This document presents information on a thermoelectric refrigerator. It includes an abstract that describes how thermoelectric modules can be used to produce refrigeration without CFCs. It then discusses the principles of thermoelectric refrigeration including the Peltier effect. It provides descriptions of the key components of the refrigerator like the thermoelectric module, heat sinks, fans, and temperature indicator. It also includes specifications, power calculations, comparisons to normal refrigerators, advantages, applications and concludes that thermoelectric refrigerators are portable, compact and environmentally friendly alternatives for some cooling applications.
Energy
This document discusses different forms of energy including kinetic, potential, mechanical, chemical, sound, thermal, electrical, gravitational, radiant, magnetic, nuclear, elastic, light, solar, wind, and hydroelectric energy. It also covers renewable energy sources like solar, wind, and hydroelectric versus non-renewable sources like fossil fuels. Specific non-renewable energy sources discussed include coal, petroleum, natural gas, and nuclear energy. The environmental impacts of generating, transmitting, and distributing energy are also summarized.
Presentation.pptx
Solar panels, wind turbines, solar water heaters, solar cookers, smart thermostats, and energy efficient lighting can be installed in homes to reduce carbon footprint and electricity bills. Solar panels convert sunlight into electricity, wind turbines convert wind energy into electricity, and solar water heaters and cookers use sunlight to heat water and cook food. Smart thermostats and energy efficient lighting help lower energy usage and costs. These technologies are renewable, clean energy alternatives that can help households reduce their environmental impact and electricity costs when used for residential power and heating needs.
GEOTHERMAL ENERGY and ITS ADVERSE EFFECTS.pptx
1) The document discusses geothermal energy and how it is used to generate electricity. It describes how geothermal energy comes from hot water and rock below the Earth's surface and different types of geothermal power plants.
2) It explains the three main types of geothermal power plants - dry steam, flash steam, and binary cycle plants - and how they convert geothermal heat into electrical energy.
3) The Philippines is highlighted as a country that utilizes geothermal energy through power plants on the islands of Luzon, Leyte, and Negros. Advantages include its renewable nature and fewer emissions than fossil fuels.
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Km89 dc powered solar cooler cum thermal fridge (wecompress)
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Energy Generation from Peltier Module by Utilizing Heat
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EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
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As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
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genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
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Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
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Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
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bordetella pertussis.................................ppt
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Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
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Slides from:
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Track: Artificial Intelligence
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In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
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The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
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at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
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measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
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Deep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless ReproducibilityUniversity of Rennes, INSA Rennes, Inria/IRISA, CNRS
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
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Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
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Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
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EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
mô tả các thí nghiệm về đánh giá tác động dòng khí hóa sau đốt
mô tả các thí nghiệm về đánh giá tác động dòng khí hóa sau đốt
bordetella pertussis.................................ppt
bordetella pertussis.................................ppt
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...
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8.Isolation of pure cultures and preservation of cultures.pdf
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...
The debris of the ‘last major merger’ is dynamically young
The debris of the ‘last major merger’ is dynamically young
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THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
Nucleic Acid-its structural and functional complexity.
Nucleic Acid-its structural and functional complexity.
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Deep Software Variability and Frictionless Reproducibility
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Pyro electricity
- 1. PYRO-ELECTRICITY FAZAL RAHAMAN SYEDA AZRA GHOUSE MOHIUDDIN KAUSAR ZAIDI
- 2. Problem statement:- Harnessing non conventional energy resources is crucial in todays world. Most of the heat energy while cooking, combustion, incineration etc is getting wasted .There needs to be a way to reduce this excessive wastage of energy and harvest useful forms of energy from it.
- 3. Solution:- The excess heat energy can be converted into electrical energy, there by it can be put into different uses.
- 4. Technology used:- Pyroelectricity It is the ability of certain materials to generate a temporary voltage when they are heated or cooled. Peltier effect An effect whereby heat is given out or absorbed when an electric current passes across a junction between two materials. But when temperature difference is created then voltage is also generated.
- 5. Components Peltier device Hot side Cold side • This is the peltier device which can convert heat energy into electrical energy. • The hot side needs to get heat where as on cold side we place heat sink which absorbs heat. • The current is taken from wires where red wire is negative and black wire is positive.
- 6. Advantages:- Charging phone while cooking. Glowing bulb when there is power cut in house. Cooling fan(giving electricity to peltier divice) which can act as miniature air conditioner.