Curium
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Curium is a radioactive transuranic element with atomic number 96 that was named after Marie and Pierre Curie. It was discovered in 1944 by Glenn Seaborg and has been used as a power source in spacecraft, including to measure the chemical composition of rocks on Mars. Curium has a melting point of 1,347°C and boiling point of 3,110°C.
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Uranium
Uranium is a radioactive element that is found in minerals in the Earth's crust. It has important industrial uses in nuclear power generation and was also used in the atomic bombs dropped on Hiroshima and Nagasaki. Uranium mining occurs around the world, with Kazakhstan being the largest producer. Prolonged exposure to uranium can increase cancer risks and cause kidney damage due to its radioactivity and toxicity.
B boron
This document provides information about the chemical element boron. It states that boron has an atomic number of 5, atomic mass of 10.811, melting point of 2,076 degrees Celsius, and boiling point of 3,927 degrees Celsius. Boron is a semi-metal with a rhombic crystal structure and density of 2.460 g/cc. It was discovered in 1808 by Sir Humphry Davy and J.L. Gay-Lussac and is used to produce green colors in pyrotechnics, as an ignition source in rockets, and in controlling nuclear reactors.
Uranium
Uranium is a silvery radioactive metal that occurs naturally in low quantities in soil, rocks, and water. It is commercially extracted from phosphate rocks, monazite sands, and lignite. Uranium is malleable and ductile, has a high density, and exists in three crystal modifications. It reacts with acids and many nonmetallic elements. Uranium's main uses are in nuclear weapons and nuclear power generation through fission in nuclear reactors.
Transuranic elements
The document discusses the discovery and properties of transuranium elements, which are elements heavier than uranium with atomic numbers 93 and above. It describes how each element was first synthesized, usually through bombardment of lighter elements with particles, as well as their chemical and physical properties such as common oxidation states and half-lives. The heaviest elements currently synthesized are livermorium at atomic number 116, but elements from 113 to 118 still require confirmation and all transuranic elements are very radioactive with short half-lives, limiting opportunities for study and application.
Insights Into Gold Exploration & Mining Business Presented by Chris Lim Kuoh ...
Abstract:
Insights Into Gold Exploration & Mining Business
Presented by Chris Lim Kuoh Yang
January 2013
http://www.cnmc.com.hk/our_project.html
https://www.set.or.th/th/asean_exchanges/files/CNMC_Insights_Into_Gold_Exploration&Mining_Business.pdf
CNMC Goldmine Holdings Limited (the “Company”) is the first Catalist-listed gold producer on the Singapore Exchange Securities Trading Limited (the “SGX-ST”). The Company commenced trading on the Catalist Board on 28 October 2011. The Company is currently spearheaded by Professor Lin Xiang Xiong as the Executive Chairman and Mr. Chris Lim Kuoh Yang as the Chief Executive Officer.
The Company together with its subsidiaries (the “Group”) are principally engaged in the business of exploration, mining of gold and the processing of mined ore into gold dores. The Group is currently focused on the development of its flagship project - the Sokor Gold Field Project which is located in the State of Kelantan, Malaysia. Our Group achieved its first gold pour on July 21, 2010 and its gold production has since been increasing steadily and as of July 2014, production had exceeded one metric tonne of gold bullion.
Leveraging on its experience and depth of knowledge as an explorer and producer in the Malaysian mining sector as well as a focus on long term growth, The Company is always on the lookout for strategic opportunities to collaborate with potential project partners or to acquire new exploration and mining licenses within the ASEAN region and Australasia.
Research Interests: Gold Mineralization, Gold mining, Exploration for Gold Deposits, and Gold Prospecting
Henri Becquerel
Henri Becquerel discovered radioactivity in 1896 almost by accident. While experimenting with uranium salts and their effect on photographic plates, he discovered that the plates were exposed even when not in direct sunlight, showing that uranium emitted radiation without an external energy source. This led to his discovery of radioactivity, the spontaneous emission of radiation by a material without external energy. For this discovery, which helped establish the field of nuclear physics, Becquerel shared the 1903 Nobel Prize in Physics with the Curies.
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Uranium is a radioactive element that is found in minerals in the Earth's crust. It has important industrial uses in nuclear power generation and was also used in the atomic bombs dropped on Hiroshima and Nagasaki. Uranium mining occurs around the world, with Kazakhstan being the largest producer. Prolonged exposure to uranium can increase cancer risks and cause kidney damage due to its radioactivity and toxicity.
B boron
This document provides information about the chemical element boron. It states that boron has an atomic number of 5, atomic mass of 10.811, melting point of 2,076 degrees Celsius, and boiling point of 3,927 degrees Celsius. Boron is a semi-metal with a rhombic crystal structure and density of 2.460 g/cc. It was discovered in 1808 by Sir Humphry Davy and J.L. Gay-Lussac and is used to produce green colors in pyrotechnics, as an ignition source in rockets, and in controlling nuclear reactors.
Uranium
Uranium is a silvery radioactive metal that occurs naturally in low quantities in soil, rocks, and water. It is commercially extracted from phosphate rocks, monazite sands, and lignite. Uranium is malleable and ductile, has a high density, and exists in three crystal modifications. It reacts with acids and many nonmetallic elements. Uranium's main uses are in nuclear weapons and nuclear power generation through fission in nuclear reactors.
Transuranic elements
The document discusses the discovery and properties of transuranium elements, which are elements heavier than uranium with atomic numbers 93 and above. It describes how each element was first synthesized, usually through bombardment of lighter elements with particles, as well as their chemical and physical properties such as common oxidation states and half-lives. The heaviest elements currently synthesized are livermorium at atomic number 116, but elements from 113 to 118 still require confirmation and all transuranic elements are very radioactive with short half-lives, limiting opportunities for study and application.
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Abstract:
Insights Into Gold Exploration & Mining Business
Presented by Chris Lim Kuoh Yang
January 2013
http://www.cnmc.com.hk/our_project.html
https://www.set.or.th/th/asean_exchanges/files/CNMC_Insights_Into_Gold_Exploration&Mining_Business.pdf
CNMC Goldmine Holdings Limited (the “Company”) is the first Catalist-listed gold producer on the Singapore Exchange Securities Trading Limited (the “SGX-ST”). The Company commenced trading on the Catalist Board on 28 October 2011. The Company is currently spearheaded by Professor Lin Xiang Xiong as the Executive Chairman and Mr. Chris Lim Kuoh Yang as the Chief Executive Officer.
The Company together with its subsidiaries (the “Group”) are principally engaged in the business of exploration, mining of gold and the processing of mined ore into gold dores. The Group is currently focused on the development of its flagship project - the Sokor Gold Field Project which is located in the State of Kelantan, Malaysia. Our Group achieved its first gold pour on July 21, 2010 and its gold production has since been increasing steadily and as of July 2014, production had exceeded one metric tonne of gold bullion.
Leveraging on its experience and depth of knowledge as an explorer and producer in the Malaysian mining sector as well as a focus on long term growth, The Company is always on the lookout for strategic opportunities to collaborate with potential project partners or to acquire new exploration and mining licenses within the ASEAN region and Australasia.
Research Interests: Gold Mineralization, Gold mining, Exploration for Gold Deposits, and Gold Prospecting
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Henri Becquerel discovered radioactivity in 1896 almost by accident. While experimenting with uranium salts and their effect on photographic plates, he discovered that the plates were exposed even when not in direct sunlight, showing that uranium emitted radiation without an external energy source. This led to his discovery of radioactivity, the spontaneous emission of radiation by a material without external energy. For this discovery, which helped establish the field of nuclear physics, Becquerel shared the 1903 Nobel Prize in Physics with the Curies.
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Curium
Curium is a radioactive rare earth metal (element 96) with an atomic weight of 247. It was first produced in 1944 at the University of California, Berkeley by bombarding plutonium with atomic particles. Curium is not found naturally and must be manufactured in a nuclear reactor, making it very valuable due to the difficulty in producing it. It is classified as a metal, located in period 7 and the actinide group on the periodic table.
Curio.carlos ruiz rubio 3 b
Curium is a radioactive chemical element with the symbol Cm and atomic number 96. It is produced by bombarding uranium or plutonium with neutrons in nuclear reactors, with one tonne of spent nuclear fuel containing about 20 grams of curium. Curium is a hard, dense, silvery metal that has a relatively high melting point and boiling point for an actinide element.
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The document discusses the actinide series of elements in the periodic table. It covers the properties and uses of actinium, thorium, protactinium, uranium, neptunium, plutonium, americium, and later actinides like curium. The actinide series includes radioactive elements with atomic numbers from 89 to 103. They have similar chemical properties and most exhibit oxidation states of +3 and +4. Many actinides are used as nuclear fuel or in specialized detection devices.
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The document summarizes key information about the periodic table of elements, including its organization of elements according to atomic number and properties. Elements are grouped into families with similar properties, and the periodic table can be used to predict chemical reactions and properties of elements. Different areas of the periodic table are described, including alkali metals, transition metals, noble gases, and more.
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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
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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
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
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and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
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Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
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Curium
Curium is a radioactive rare earth metal (element 96) with an atomic weight of 247. It was first produced in 1944 at the University of California, Berkeley by bombarding plutonium with atomic particles. Curium is not found naturally and must be manufactured in a nuclear reactor, making it very valuable due to the difficulty in producing it. It is classified as a metal, located in period 7 and the actinide group on the periodic table.
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Curium is a radioactive chemical element with the symbol Cm and atomic number 96. It is produced by bombarding uranium or plutonium with neutrons in nuclear reactors, with one tonne of spent nuclear fuel containing about 20 grams of curium. Curium is a hard, dense, silvery metal that has a relatively high melting point and boiling point for an actinide element.
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The document discusses the actinide series of elements in the periodic table. It covers the properties and uses of actinium, thorium, protactinium, uranium, neptunium, plutonium, americium, and later actinides like curium. The actinide series includes radioactive elements with atomic numbers from 89 to 103. They have similar chemical properties and most exhibit oxidation states of +3 and +4. Many actinides are used as nuclear fuel or in specialized detection devices.
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Actinium is the first member of the actinide series of elements according to its electronic configuration. Actinium closely resembles lanthanum chemically. The three most important isotopes of actinium are 227Ac, 228Ac, and 225Ac. 227Ac is a naturally occurring isotope in the uranium-actinium decay series with a half-life of 21.772 years. 228Ac is in the thorium decay series with a half-life of 6.15 hours. 225Ac is produced from 233U with applications in medicine.
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The document summarizes key information about the periodic table of elements, including its organization of elements according to atomic number and properties. Elements are grouped into families with similar properties, and the periodic table can be used to predict chemical reactions and properties of elements. Different areas of the periodic table are described, including alkali metals, transition metals, noble gases, and more.
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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
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Classification
Metal ion ion indicators
Masking and demasking reagents
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Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
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3.Replacement Titration
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Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
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Complex titration with EDTA.
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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
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
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
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
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Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
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The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.
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Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
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.
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/Recently uploaded (20)
The debris of the ‘last major merger’ is dynamically young
The debris of the ‘last major merger’ is dynamically young
ESR spectroscopy in liquid food and beverages.pptx
ESR spectroscopy in liquid food and beverages.pptx
Compexometric titration/Chelatorphy titration/chelating titration
Compexometric titration/Chelatorphy titration/chelating titration
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
Basics of crystallography, crystal systems, classes and different forms
Basics of crystallography, crystal systems, classes and different forms
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
GBSN - Biochemistry (Unit 6) Chemistry of Proteins
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
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...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Curium
- 2. Curium is a transuranic radioactive chemical element with symbol Cm and atomic number 96. This element of the actinide series was named after Marie and Pierre Curie – both were known for their research on radioactivity.
- 4. Glenn T. Seaborg Born April 19, 1912 Ishpeming, Michigan DiedFebruary 25, 1999 Lafayette, California
- 5. Curium-244 was used in the Alpha Proton X-ray Spectrometer (APXS) which measured the abundance of chemical elements in rocks and soils on Mars. Curium-244 is a strong alpha emitter and is being studied as a potential power source in radioisotope thermoelectric generators (RTGs) for use in spacecraft and other remote applications.
- 6. Alpha Proton X-Ray Spectrometer
- 7. Symbol: Cm Electron configuration: Rn 5f7 6d2 7s2 Atomic number: 96 Discovered: 1944 Melting point: 1,347 °C Boiling point: 3,110 °C Atomic mass: 247 u