Reproduction & Life cycle of micro and macro algae
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This document discusses the life cycle and reproduction of algae. It describes that algae reproduce both sexually through spores and asexually through cell division or fragmentation. The life cycle involves an alternation of generations where haploid gametophytes produce gametes that fuse to become diploid sporophytes which then produce spores that develop into new gametophytes, completing the cycle.
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Chemical preservatives, preservation by ionizing radiations
Chemical preservatives, preservation by ionizing radiations Kamaraj College of Engineering & Technology, Virudhunagar
This document discusses food additives and preservatives. It notes that various chemicals are added to foods to increase shelf life and appeal, and lists the main categories of food additives. Food preservatives specifically inhibit microbial growth and food decomposition. They are classified into two groups and must be safe for human consumption, even in small traces. Chemical preservatives are added to foods to prevent spoilage by microorganisms. They can be grouped into two classes - Class I includes substances like salt and vinegar, while Class II includes benzoic acid and nitrites but must be used within safe dose limits. Key factors that influence preservative effectiveness include the chemical, microorganism properties, and product composition. Common preservativesCalculation of refrigeration load
This document discusses the calculation of refrigeration load, which includes transmission load through walls/roof/floor, product load from cooling/freezing products, internal load from equipment like lights/motors, infiltration load from open doors, and equipment load from devices like fan motors and defrosting. It provides examples of calculating each type of load, such as transmission load using dimensions/insulation values, product load using weight/temperature of arriving goods, internal load from people working, and total load by summing individual loads. The example calculation finds a total refrigeration load of 72.27 kWh/day for a cold storage room.
Rate of drying for food products
This document discusses the principles and processes of drying food products. It explains that drying involves reducing the moisture content of food to inhibit microbial growth and chemical reactions. The drying process is governed by heat and mass transfer principles. There are three main types of drying: contact/convective drying where food directly contacts drying air, vacuum drying using indirect heat, and freeze drying using sublimation. The drying rate depends on moisture content and occurs in three periods: constant rate period where the surface moisture evaporates at the same rate as interior moisture migrates outward, and two falling rate periods where the drying rate decreases as moisture diffusion slows. Selection of the appropriate dryer depends on factors like the food properties, scale of production, and
Properties of air water mixtures
A psychrometric chart graphically represents psychrometric processes of air. It can be used to plot multiple data points representing air conditions at a time and identify the comfort zone where occupants are satisfied. The chart contains lines for dry bulb temperature, wet bulb temperature, and relative humidity. A psychrometric chart can evaluate systems like air heating, cooling towers, evaporative condensers, and evaporative cooling and analyze energy usage in dryers.
Freezing and cold storage
Freezing and cold storage is a method to preserve perishable foods like fruits, vegetables, meat and dairy products by storing them at temperatures below freezing. It involves using refrigeration equipment like fan coil units to maintain temperatures below 0°C to slow microbial growth and prevent spoilage. Proper cold storage allows foods to be preserved for longer periods of time until they are ready to be consumed.
Freeze concentration
This document appears to be a course code and unit number for a class taught by Dr. K. Geetha, an Associate Professor in the Department of Biotechnology at Kamaraj College of Engineering & Technology in Madurai, India.
Design parameters of different type of dryers
Design parameters of different type of dryers Kamaraj College of Engineering & Technology, Virudhunagar
The document discusses the design of a rotary dryer, noting that the best design uses pilot plant test data, full-scale operating data from similar dryers if available, and available design equations. There are many variables to consider such as the solid throughput, inlet and exit moisture contents of the solid, critical and equilibrium moisture contents, and the temperature and humidity of the drying gas. The document provides an example case study where the solid has only unbound moisture and in one stage reaches the wet bulb temperature of the gas.More from Kamaraj College of Engineering & Technology, Virudhunagar (20)
Isolation and characterization, Culture Media & Harvesting of Algae
Isolation and characterization, Culture Media & Harvesting of Algae
Distribution of Economically Important Algae in India
Distribution of Economically Important Algae in India
Restriction-Modification system, Types of Restriction enzymes
Restriction-Modification system, Types of Restriction enzymes
Chemical preservatives, preservation by ionizing radiations
Chemical preservatives, preservation by ionizing radiations
Recently uploaded
The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Gadgets for management of stored product pests_Dr.UPR.pdf
Insectsplayamajorroleinthedeteriorationoffoodgrainscausingbothquantitativeandqualitativelosses
Wellprovedthatnogranariescanbefilledwithgrainswithoutinsectsastheharvestedproducecontainegg(or)larvae(or)pupae(or)adultinsectinthembecauseoffieldcarryoverinfestationwhichcannotbeavoidedindevelopingcountrieslikeIndia
Simpletechnologiesfortimelydetectionofinsectsinthestoredproduceandtherebyplantimelycontrolmeasures
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...Advanced-Concepts-Team
Presentation in the Science Coffee of the Advanced Concepts Team of the European Space Agency on the 07.06.2024.
Speaker: Diego Blas (IFAE/ICREA)
Title: Gravitational wave detection with orbital motion of Moon and artificial
Abstract:
In this talk I will describe some recent ideas to find gravitational waves from supermassive black holes or of primordial origin by studying their secular effect on the orbital motion of the Moon or satellites that are laser ranged.Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
The debris of the ‘last major merger’ is dynamically young
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
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
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6:个人职称评审加20分
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Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
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.
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
By harnessing the power of High Flux Vacuum Membrane Distillation, Travis Hills from MN envisions a future where clean and safe drinking water is accessible to all, regardless of geographical location or economic status.
11.1 Role of physical biological in deterioration of grains.pdf
Storagedeteriorationisanyformoflossinquantityandqualityofbio-materials.
Themajorcausesofdeteriorationinstorage
•Physical
•Biological
•Mechanical
•Chemical
Storageonlypreservesquality.Itneverimprovesquality.
Itisadvisabletostartstoragewithqualityfoodproduct.Productwithinitialpoorqualityquicklydepreciates
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
ESR spectroscopy in liquid food and beverages.pptx
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
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The cost of acquiring information by natural selection
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Gadgets for management of stored product pests_Dr.UPR.pdf
Gadgets for management of stored product pests_Dr.UPR.pdf
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ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
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Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
The debris of the ‘last major merger’ is dynamically young
The debris of the ‘last major merger’ is dynamically young
Immersive Learning That Works: Research Grounding and Paths Forward
Immersive Learning That Works: Research Grounding and Paths Forward
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...
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
11.1 Role of physical biological in deterioration of grains.pdf
11.1 Role of physical biological in deterioration of grains.pdf
Compexometric titration/Chelatorphy titration/chelating titration
Compexometric titration/Chelatorphy titration/chelating titration
Basics of crystallography, crystal systems, classes and different forms
Basics of crystallography, crystal systems, classes and different forms
ESR spectroscopy in liquid food and beverages.pptx
ESR spectroscopy in liquid food and beverages.pptx
Reproduction & Life cycle of micro and macro algae
- 1. Reproduction and Life cycle VBT315: UNIT 2 1
- 2. VBT315: UNIT 2 2
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