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Ray tracing
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Part 1 of ebook "Fundamentals of computer graphics (Fourth edition)" provides readers with contents including: Chapter 1 - Introduction; Chapter 2 - Miscellaneous math; Chapter 3 - Raster images; Chapter 4 - Ray tracing; Chapter 5 - Linear algebra; Chapter 6 - Transformation matrices; Chapter 7 - Viewing; Chapter 8 - The graphics pipeline; Chapter 9 - Signal processing; Chapter 10 - Surface shading; Chapter 11 - Texture mapping; Chapter 12 - Data structures for graphics; Chapter 13 - More ray tracing;...
351p
daonhiennhien
03-07-2024
1
1
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A magnetic molecularly imprinted electrochemical sensor was developed for selective determination of sufentanil (SUF) based on carbon paste electrode (CPE) modified with methacrylic acid-ethylene glycol dimethacrylate-coated Fe3O4 nanoparticles (Fe3O4@MAA-EGDMA NPs). The structural properties, chemical structure, and electrochemical behaviors of the imprinted sensor were characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), and square wave voltammetry (SWV), respectively.
14p
dianmotminh02
03-05-2024
4
1
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Part 2 book "Computer graphics programming in OpenGL with Java" includes content: Parametric surfaces, tessellation, geometry shaders, other techniques, simulating water, ray tracing and compute shaders, stereoscopy for 3D glasses and VR headsets.
274p
muasambanhan05
16-01-2024
5
3
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Continued part 1, part 2 of ebook "Blender master class: A hands-on guide to modeling, sculpting, materials, and rendering" provides readers with contents including: Chapter 8 - UV unwrapping; Chapter 9 - Hair and particle systems; Chapter 10 - Texture baking; Chapter 11 - Texture painting; Chapter 12 - Materials; Chapter 13 - Lighting; Chapter 14 - Rendering and compositing; Chapter 15 - Going further;...
389p
dangsovu
20-10-2023
6
4
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Four dietary trace elements were determined in indigenous complementary infant flours collected from mothers in rural areas of Kenya using total-reflection x-ray technique. A high variability of these trace element levels were observed in the samples.
7p
viisac
23-09-2023
2
0
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Selenium (Se) is an essential trace element, and its deficiency in the humans leads to increase the risk of various diseases, such as cancer and heart diseases. The objective of this study was to investigate the influence of biofield energy treatment on the physical and thermal properties of the selenium powder. The selenium powder was divided into two parts denoted as control and treated.
6p
viisac
23-09-2023
2
1
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The following will be discussed in this chapter: Overview of graphic systems, LED display, plasma TV, hardcopy devices, input devices, human visual system, ray tracing.
14p
haojiubujain04
27-07-2023
5
5
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Liquid phase microextraction (LPME) procedures have been widely used in combination with atomic and emission spectroscopic techniques for the isolation and preconcentration of trace elements. However, its application in combination with total reflection X-ray spectrometry (TXRF) is still scarce. In this paper, we evaluate the possibilities and drawbacks of a two-phase hollow fiber LPME procedure in combination with TXRF for the simultaneous determination of trace amounts of Cr, Ni, Cu, Zn, Pb, and Cd in aqueous samples.
11p
langthannam
29-12-2021
9
0
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This review was aimed to find out real life application of noble gas xenon. The noble gas xenon (Xe) occupy the zero group of the periodic table. It is fifth member of noble gas family. It is a colorless, dense, odorless noble gas found in the Earth's atmosphere in trace amounts. Xenon has so many application in real life, viz., in arc lamps in xenon HID (high-intensity discharge) lamp and in high pressure arc lamps to produce ultraviolet light. It is used in instruments for radiation detection, e.g., neutron and X-ray counters and bubble chambers.
6p
caygaocaolon8
07-11-2020
16
1
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In this investigation, the Total Reflection X-ray Fluorescence (TXRF) technique detected 24 elements: Al, P, S, Cl, K, Sr, Sc, Ti, Mn, Fe, Co, Cu, Zn, As, Br, Ba, La, Eu, Tb, Dy, Ta, Pb, Th, and U in Barbula indica moss collected at Baoloc (Vietnam) from November 2019 to March 2020. Factor analysis was used to explain contamination sources at the sampling sites.
12p
viirene2711
03-10-2020
17
2
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Artichokes, which provide a lot of nutrients and minerals, are a specialty of Dalat. In our investigation, artichokes were collected at two artichoke farms in Ward 12 of Dalat from 2nd to 16th February 2020. Artichoke stems, leaves, flowers, and roots were studied with the Total Reflection X-ray Fluorescence (TXRF) technique.
10p
viirene2711
03-10-2020
17
2
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Ebook Aviation and airport security - Terrorism and safety concerns: Part 2 present content private security personnel versus transportation administration security personnel— increased supervision; metal detectors, x-ray inspection, explosive detection, and trace detection devices: will the public tolerate the intrusion; cargo security a loose end; security and the rules of law—a slippery slope.
179p
kethamoi6
01-07-2020
18
2
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SGaRD (Spectroscopy, Gamma rays, Rapid, Deterministic) code is used for the fast calculation of the gamma-ray spectrum, produced by a spherical shielded source and measured by a detector. The photon source lines originate from the radioactive decay of the unstable isotopes.
8p
christabelhuynh
30-05-2020
14
2
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A pilot study has being carried out at our laboratories, with international collaborators, to develop seven certified reference materials (CRMs), which have matrices of mainly soil and biological tissues. The CRMs will be certified for macro-, micro- and trace elements for environmental, toxicology, agronomic and nutritional purposes.
11p
vijiraiya2711
27-05-2020
10
1
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Assessment of trace metal contamination of soil in a landfill vicinity: A southern Africa case study
This study quantified pollution of soils by trace elements at the Roundhill landfill, South Africa using indices and multivariate statistics. Soils were collected and assayed for trace metals using x-ray fluorescence.
12p
tocectocec
25-05-2020
13
0
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The octahedron Zn2SnO4 was prepared through a facile hydrothermal method for ethanol gas-sensing application. The synthesized material was characterized by scanning electron microscopy (SEM) and powder x-ray diffraction (XRD). The gas-sensing characteristics were measured at various concentrations of ethanol at temperature ranging from 350 to 450 ºC. The gas response exhibits good linear relationship with increasing ethanol concentrations in the range of 50 -250 ppm.
8p
nguyenminhlong19
22-04-2020
18
1
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The regular assessment of a water source has been important for safety and pollution warning. Specifically, the concentration of trace elements in water reflects the pollution level. Urbanization, industrialization, fertilizers and other plant protection products have negatively affected the environment; in particular, water and air quality.
7p
vicaracas2711
22-11-2019
30
0
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This paper reports on the synthesis and characterisation of Dy2 O3 -doped magnesium borate (MB) glasses containing different modifiers, lithium, calcium, and sodium oxides. Glasses composed of (70-z)B2 O3 -20Li2 O; CaO; Na2 O-10MgO-zDy2 O3 (where 0.05≤z≤0.7 mol%) were prepared using the melt-quenching method. X-ray diffraction (XRD) pattern of the as-quenched samples verified their amorphous character. Differential thermal analysis (DTA) confirmed excellent glass-forming ability and thermal stability in the range of 0.60-0.67 and 0.18- 0.82, respectively.
6p
caygaocaolon1
13-11-2019
20
1
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The samples are important in various fields including nuclear technology. Methods: Samples were neutron irradiated using nuclear reactors, and the radioactive assay was carried out using high-resolution gamma-ray spectrometry. Major to trace mass fractions were determined using both relative and internal monostandard (IM) NAA methods as well as OES methods
7p
minhxaminhyeu4
26-06-2019
14
0
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Ray Tracing is an algorithm for generating photo-realistic pictures of the 3D scenes, given scene description, lighting condition and viewing parameters as inputs. The algorithm is inherently convenient for parallelization and the simplest parallelization scheme is for the shared-memory parallel machines (multiprocessors). This paper presents two implementations of the algorithm developed by the authors for alike machines, one using the POSIX threads API and another one using the OpenMP API.
11p
vinguyentuongdanh
20-12-2018
36
1
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