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Wyświetlanie 1-15 z 23
Tytuł:
Effect of annealing temperature on the structural and optical properties of CdSe: 1% Ag thin films
Autorzy:
Shehab, Alia A. A.
Mustafa, Mohammad H.
Majeed, Samir G.
Powiązania:
https://bibliotekanauki.pl/articles/1192119.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
annealing
XRD
Optical
CdSe: 1% Ag
thin films
Opis:
CdSe: 1% Ag thin films prepared by thermal evaporation method on glass substrates under vacuum technique with rate of deposition equal to 50 nm/min, the deposited films thickness (1µm) on glass substrates have been annealed at different temperatures for one hour. XRD measurement shows that the films have polycrystalline structure at R.T and change to single crystalline when annealed these films for different annealing temperatures (423, 473, 523 K). The optical measurement indicated that CdSe: 1% Ag films have direct optical energy gap, and it decreases with increasing annealing temperatures. The optical constant refractive index, extinction coefficient and dielectric constants were also studied.
Źródło:
World Scientific News; 2016, 45, 2; 185-195
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Insulation and Mechanical Properties in the Presence of Glas Bubble in Fly Ash Geopolymer Paste
Autorzy:
Shahedan, Noor Fifinatasha
Abdullah, Mohd Mustafa Al Bakri
Mahmed, Norsuria
Liew, Yun Ming
Shayfull, Zamree Abd Rahim
Aziz, Ikmal Hakem A.
Kadir, Aeslina Abdul
Sandu, Andrei Victor
Ghazali, Mohd Fathullah
Powiązania:
https://bibliotekanauki.pl/articles/2048833.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
glass bubble
thermal insulation
geopolymers
fly ash
Opis:
The density, compressive strength, and thermal insulation properties of fly ash geopolymer paste are reported. Novel insulation material of glass bubble was used as a replacement of fly ash binder to significantly enhance the mechanical and thermal properties compared to the geopolymer paste. The results showed that the density and compressive strength of 50% glass bubble was 1.45 g/cm3 and 42.5 MPa, respectively, meeting the standard requirement for structural concrete. Meanwhile, the compatibility of 50% glass bubbles tested showed that the thermal conductivity (0.898 W/mK), specific heat (2.141 MJ/m3 K), and thermal diffusivity (0.572 mm2 /s) in meeting the same requirement. The improvement of thermal insulation properties revealed the potential use of glass bubbles as an insulation material in construction material.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 221-226
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of energy saving with lean production in a food processing company
Autorzy:
Salah, Sameh A.
Mustafa, Ahmad
Powiązania:
https://bibliotekanauki.pl/articles/2052198.pdf
Data publikacji:
2021
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
lean production
seven wastes
specific energy consumption
Opis:
Increasing the energy efficiency has become a key concern in manufacturing companies due to the increased energy costs and the environmental impacts. More efficient energy saving can make the most economic contribution towards solving these problems in the short run. Companies’ governments are striving to identify the most effective measures to improve energy efficiency in manufacturing processes. The specific energy consumption (SEC) is a key performance indicator used to measure the energy consumed per product. Therefore, an improvement of this value contributes to decouple of economic growth from related increase of energy consumption. This paper highlights the needs of manufacturing companies for integrating energy performance in production management. This work focuses on studying the impact of implementing lean production concepts on decreasing the SEC in a food processing organization. The reduction of SEC can be achieved by increasing the total efficiency of the production line. Implementing the lean production methodology by using energy management model achieve an increase in the production output. The lean production used to eliminate all kinds of waste in production, while using the same input resources such as raw material and energy. The main source of waste found on the production line is the defective product and time waste during changeover and manual process. The achieved results showed that the SEC improved by 15.1% by reducing the lean wastes in the production line. Implementation of lean methodology has a great impact on improving the energy saving by reducing the specific energy consumption in the organization. The SEC is a key performance indicator used to measure the efficiency of a production line or a machine in relation to its production. Energy management model is useful in identifying the area of improvement and the energy saving measure.
Źródło:
Journal of Machine Engineering; 2021, 21, 4; 118-133
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental investigation of chopped steel wool fiber at various ratio reinforced cementitious composite panels
Autorzy:
Rmdan Amer, Akrm A.
Al Bakri Abdullah, Mohd Mustafa
Ming, Liew Yun
Aziz, Ikmal Hakem A.
Mohd Tahir, Muhammad Faheem
Abd Rahim, Shayfull Zamree
Amer, Hetham A. R.
Powiązania:
https://bibliotekanauki.pl/articles/1852332.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
włókno stalowe
włókno posiekane
wełna stalowa
kompozyt cementowy
płyta kompozytowa
nośność
steel fiber
chopped fiber
steel wool
cementitious composite
composite panel
load carrying capacity
Opis:
The flexural toughness of chopped steel wool fiber reinforced cementitious composite panels was investigated. Reinforced cementitious composite panels were produced by mixing of chopped steel wool fiber with a ratio range between 0.5% to 6.0% and 0.5% as a step increment of the total mixture weight, where the cement to sand ratio was 1:1.5 with water to cement ratio of 0.45. The generated reinforced cementitious panels were tested at 28 days in terms of load-carrying capacity, deflection capacities, post-yielding effects, and flexural toughness. The inclusion of chopped steel wool fiber until 4.5% resulted in gradually increasing load-carrying capacity and deflection capacities while, provides various ductility, which would simultaneously the varying of deflection capability in the post-yielding stage. Meanwhile, additional fiber beyond 4.5% resulted in decreased maximum load-carrying capacity and increase stiffness at the expense of ductility. Lastly, the inclusion of curves gradually.
Źródło:
Archives of Civil Engineering; 2021, 67, 3; 661-671
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
3D CAD model for a quadrotor system modeling and control
Autorzy:
Raheemah, Fatima A.
Hussein, Mustafa T.
Powiązania:
https://bibliotekanauki.pl/articles/2096198.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
quadrotor
SimMechanics/MATLAB
CAD model
unmanned aerial vehicles
model CAD
bezzałogowe statki powietrzne
Opis:
In this paper, the work focus on the advantages of several engineering software to present a case study for the quadrotor system by a used 3D CAD model. The CAD model initially generated using one of the CAD software and it can be accessed from MATLAB software and converted into a virtual physical model. Quadrotors are unmanned aerial vehicles capable of vertical takeoff, hovering, and landing. The quadrotor is distinguished by its small size, flexibility, and maneuverability. The small sensors and actuators used in these systems are effective enough in comparison with the larger systems. The CAD model for the quadrotor system in this study is used to show the capability of the 3D model implementation in modeling and control. These models echo on the real-time models to improve the behavior in the real world. The actual quadrotor device was converted from the real system to a 3D model. Also, the model is converted to SimMechanics for the sake of simulation. Two different control methods are used in this work to stable the motion of the quadrotor system. First the adaptive sliding mode controller with the adaptive controller. Second the adaptive sliding mode controller with the PID controller. The simulation results show the model works fine with the controllers and it preserves the desired position and attitude along the desired predefined path. The results shown when a comparison was made that the ratio of error for PID controller is better.
Źródło:
Diagnostyka; 2022, 23, 2; art. no. 2022203
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors affecting the susceptibility of sea lice infection in Atlantic salmon
Autorzy:
Mustafa, A.
Piasecki, W.
Powiązania:
https://bibliotekanauki.pl/articles/838117.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
Lepeophtheirus salmonis
fish parasite
Salmo salar
Atlantic salmon
fish
Caligus elongatus
sea lice
infection
sea louse
susceptibility
Źródło:
Annals of Parasitology; 2005, 51, 4
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors affecting the susceptibility of sea lice infection in Atlantic salmon
Autorzy:
Mustafa, A.
Piasecki, W.
Powiązania:
https://bibliotekanauki.pl/articles/2146418.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
Lepeophtheirus salmonis
fish parasite
Salmo salar
Atlantic salmon
fish
Caligus elongatus
sea lice
infection
sea louse
susceptibility
Opis:
Parasitic copepods of the family Caligidae, otherwise known as sea lice (Lepeophtheirus salmonis and Caligus elongatus), are responsible for serious disease problems in salmon aquaculture. This mini-review examines the host factors that are affecting the susceptibility of sea lice infection in salmon; in particular, host species, environment, host stress levels, and host immunocompetency. In order to develop more effective methods to control sea lice infection, these factors should be taken into account, along with other factors such as sea lice life cycle and fecundity as well as salmon husbandry methods.
Źródło:
Wiadomości Parazytologiczne; 2005, 51, 4; 281-285
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Finite Element Analysis on Structural Behaviour of Geopolymer Reinforced Concrete Beam using Johnson-Cook Damage in ABAQUS
Autorzy:
Mortar, Nurul Aida Mohd
Al Bakri Abdullah, Mohd Mustafa
Hussin, Kamarudin
Razak, Rafiza Abdul
Hamat, Sanusi
Hilmi, Ahmad Humaizi
Shahedan, Noorfifi Natasha
Li, Long Yuan
Aziz, Ikmal Hakem A.
Powiązania:
https://bibliotekanauki.pl/articles/2174588.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fly ash geopolymer
geopolymer concrete
finite element analysis
Johnson Cook Damage
ABAQUS software
Opis:
This paper details a finite element analysis of the behaviour of Si-Al geopolymer concrete beam reinforced steel bar under an impulsive load and hyper velocity speed up to 1 km/s created by an air blast explosion. The initial torsion stiffness and ultimate torsion strength of the beam increased with increasing compressive strength and decreasing stirrup ratio. The study involves building a finite element model to detail the stress distribution and compute the level of damage, displacement, and cracks development on the geopolymer concrete reinforcement beam. This was done in ABAQUS, where a computational model of the finite element was used to determine the elasticity, plasticity, concrete tension damages, concrete damage plasticity, and the viability of the Johnson-Cook Damage method on the Si-Al geopolymer concrete. The results from the numerical simulation show that an increase in the load magnitude at the midspan of the beam leads to a percentage increase in the ultimate damage of the reinforced geopolymer beams failing in shear plastic deformation. The correlation between the numerical and experimental blasting results confirmed that the damage pattern accurately predicts the response of the steel reinforcement Si-Al geopolymer concrete beams, concluded that decreasing the scaled distance from 0.298 kg/m3 to 0.149 kg/m3 increased the deformation percentage.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 4; 1349--1354
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Engineering-geological and geotechnical investigations for risk assessment of the University Olympic Village in Izmir (Turkey)
Autorzy:
Kıncal, Cem
Koca, Mehmet Yalçın
Yılmaz, H. Recep
Akgün, Mustafa
Özyalın, Şenol
Eskişar, Tuğba
Akçığ, Zafer
Loon, A. J. (Tom)
Powiązania:
https://bibliotekanauki.pl/articles/94556.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
engineering geology
hazard maps
bearing capacity
Izmir
Turkey
geologia inżynierska
mapy zagrożenia
nośność statyczna
Turcja
Opis:
The Metropolitan Municipality of Izmir (Turkey) designated a steeply inclined area for the construction of buildings to house the participants of the Izmir University Olympic Games. Before the construction activities could start, engineering geological and geotechnical investigations had to be carried out in order to establish which zones in the area were suitable for safe constructions. Seismic studies, borings and laboratory tests yielded the data, which were used for preparing five hazard maps in a GIS environment. The construction activities based on the results of this complex investigation appeared successful. The engineering geological investigations included geotechnical measurements on core samples obtained from the boreholes (core drilling) and laboratory testing. The rock-quality designation (RQD%) values of the rock units were determined and used in the rock-mass classification (rock-mass rating method) as an in-put parameter and in the calculation of the bearing capacity of the various rock units. Geophysical surveys were carried out to determine the seismic velocity of the rocks at the site. A short overview is provided of the main problems that had to be dealt with, and of the successive steps taken to solve the engineering-geological problems. Determination of these problems is necessary for adequate land-use planning and construction activities.
Źródło:
Geologos; 2010, 16, 1; 43-57
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of water supply networks for water transfer to the urban area Case study: Balikpapan city
Autorzy:
Huy, Dinh T.N.
Dwijendra, Ngakan K.A.
Poltarykhin, Andrey
Suksatan, Wanich
Nahi, Nooraldeen S.
Mahmudiono, Trias
Hai, Nguyen T.
Kadhim, Mustafa M.
Singh, Krishanveer
Ahmed, Alim A.A.
Powiązania:
https://bibliotekanauki.pl/articles/2174373.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
network design
water distribution
water shortage
water supply network
water transmission
Opis:
The growing population and the development of industries in all countries of the world have created a very important and complex issue for water supply to cities. Today, many parts of the world are facing the problem of water shortage and this problem cannot be easily solved. In addition to the proper use of water resources and preventing the loss of natural water, the establishment of regional water supply networks is effective in meeting the future needs of the people. A water distribution network (water supply network) is a set of interconnected pipelines used to transport and distribute water in a complex. In designing the water distribution network, factors such as the type of water distribution network, water pressure, water velocity, design flow, minimum pipe diameter, pipe material and many other factors should be considered. In this study, we have tried to design the water supply network of a part of Balikpapan city in Indonesia. The design method led to the determination of pressure values in the connection nodes, pipe diameters, flow rate and velocity in the pipes. All the existing criteria are considered in the design of the water supply network. Although this study has been implemented for a specific study area, it can be of great help to designers in designing the water supply network.
Źródło:
Journal of Water and Land Development; 2022, 54; 251--254
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental and numerical studies of fatigue properties of carbon/glass fiber/epoxy hybrid composites enhanced with nano TiO2 powder
Autorzy:
Hunain, Mustafa Baqir
Abass, Basim A.
Akhudair, Jaafar Musa
Powiązania:
https://bibliotekanauki.pl/articles/1840903.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
hybrid nano-composite materials
fatigue
mechanical properties
hybrydowy materiał kompozytowy
nanokompozyt
zmęczenie
właściwości mechaniczne
Opis:
The present work deals with the fatigue behavior of hybrid nanocomposites consisting epoxy strengthen by unidirectional carbon fibres, and/or woven roving glass fiber and TiO2 nanofillers. For this purpose, nanocomposite material was manufactured by mixing TiO2 nanoparticles with the epoxy using an ultrasonic mixer to insure complete dispersion of such particles in the base material. Different particle concentrations (1, 3, and 5) % wt. of TiO2 nanoparticles have been added to the epoxy. Different types of hybrid nano composite materials were manufactured by adding three layers of carbon fibers and/or woven roving glass fiber to the prepared epoxy nanocomposite materials with a constant weight fraction of 30%. The laminated hybrid nanocomposite materials were then prepared using hand lay-up technique using a vacuum device. For experimental purposes tensile and fatigue test specimens have been manufactured according to ASTM-D3039 and ASTM D 3479/D 3479M-96, respectively, while ANSYS19 program was used to analyze the fatigue behavior of such materials numerically. Tensile tests were carried out at room temperature while fatigue tests has been carried out at constant stress ratio (R=-1). Scanning electron microscope (SEM) was used to identify the underlying mechanisms for fatigue failure and the progressive of damage growth. For each test, three specimens were tested and the average magnitude for each property was taken. The results obtained indicated that the hybrid nanocomposite (EP+C/C/C+3% TiO2) has the highest fatigue limit and tensile strength in comparison with the other tested material, while the SEM results showed that the composite failed by a brittle way. It has been also generally observed that the addition of (TiO2) nanoparticles has a positive effect on the fatigue behaviour of the such materials.
Źródło:
Diagnostyka; 2021, 22, 2; 75-84
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of SnO2/TiO2 with the Addition of Polyethylene Glycol via Sol-Gel Method for Self-Cleaning Application
Autorzy:
Halin, Dewi Suriyani Che
Azliza, Azani
Razak, Kamrosni Abdul
Abdullah, Mohd Mustafa Al Bakri
Salleh, Mohd Arif Anuar Mohd
Wahab, Juyana A
Chobpattana, Varistha
Kaczmarek, Łukasz
Nabiałek, Marcin
Jeż, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/2203743.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
TiO2
SnO2
thin film
polyethylene glycol
self-cleaning
Opis:
TiO2 is one of the most widely used metal oxide semiconductors in the field of photocatalysis for the self-cleaning purpose to withdraw pollutants. Polyethylene glycol (PEG) is recommended as a stabilizer and booster during preparation of water-soluble TiO2. Preparation of SnO2/TiO2 thin film deposition on the surface of ceramic tile was carried out by the sol-gel spin coating method by adding different amount of PEG (0g, 0.2g, 0.4g, 0.6g, 0.8g) during the preparation of the sol precursor. The effects of PEG content and the annealing temperature on the phase composition, crystallite size and the hydrophilic properties of SnO2/TiO2 films were studied. The X-ray diffraction (XRD) spectra revealed different phases existed when the films were annealed at different annealing temperatures of 350°C, 550°C and 750°C with 0.4 g of PEG addition. The crystallite sizes of the films were measured using Scherrer equation. It shows crystallite size was dependent on crystal structure existed in the films. The films with mixed phases of brookite and rutile shows the smallest crystallite size. In order to measure the hydrophilicity properties of films, the water contact angles for each film with different content of PEG were measured. It can be observed that the water contact angle decreased with the increasing of the content of PEG. It shows the superhydrophilicity properties for the films with the 0.8 g of PEG annealed at 750°C. This demonstrates that the annealed temperature and the addition of PEG affect the phase composition and the hydrophilicity properties of the films.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 1; 243--248
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons
Autorzy:
Gruszka, K.
Nabiałek, M.
Szota, M.
Bloch, K.
Gondro, J.
Pietrusiewicz, P.
Sandu, A. V.
Mustafa Al Bakri, A. M.
Walters, K.
Walters, S.
Garus, S.
Dośpiał, M.
Mizera, J.
Powiązania:
https://bibliotekanauki.pl/articles/355886.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermal stability
magnetic properties
Opis:
The paper presents the results of structural and magnetic properties and thermal stability for a group of functional materials based on Fe61Co10Zr2.5Hf2.5Me2W2B20 (where Me = Mo, Nb, Ni or Y). Samples were obtained in the form of ribbons using melt-spinning method. The X-ray diffraction patterns of investigated samples confirmed their amorphous structure. Based on the analysis of DSC curves characteristic temperatures: glass forming temperature (Tg), crystallization temperature (Tx) and temperature range of the supercooled liquid ΔTx were determined. Small addition of transition metals elements has strong influence on magnetic and thermal parameters of studied materials. The comprehensive studies revealed that in terms of magnetic properties the Ni-addition resulted in highest reduction in coercivity and anisotropy field.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 2A; 641-644
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Raised plasma insulin level and homeostasis model assessment (HOMA) score in cerebral malaria: evidence for insulin resistance and marker of virulence
Autorzy:
Eltahir, Elrashid
ElGhazali, Gehad
A-Elgadir, Thoraya
A-Elbasit, Ishraga
Elbashir, Mustafa
Giha, Hayder
Powiązania:
https://bibliotekanauki.pl/articles/1040314.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
insulin resistance
virulence
hyperglycaemia
HOMA
cerebral malaria
Opis:
Objective: To study the glycaemic profile of patients with severe malaria (SM). Methods: For this purpose, 110 SM patients were recruited. Pre-treatment random blood glucose and plasma insulin were measured in a subset of donors. An ex-vivo experiment was developed for estimation of glucose consumption by parasitized erythrocytes. Results: Hyperglycaemia was frequent in SM but more commonly associated with cerebral malaria (CM), while hyperinsulinaemia was recognized in severe-malarial-hypotension (median, 25 %-75 %, 188.2, 93.8-336.8 pmol/L). The plasma insulin level was positively correlated with age (CC = 0.457, p < 0.001) and negatively with parasitaemia (CC = -0.368, p = 0.045). Importantly, fatal-CM was associated with hyperglycaemia (12.22, 6.5-14.6 mmol/L), hyperinsulinaemia (141.0, 54.0-186.8 pmol/L) and elevated homeostasis model assessment (HOMA) values. However, there was a trend of higher glucose consumption by parasites in CM compared with that in uncomplicated malaria (UM). Conclusion: Hyperglycaemia, hyperinsulinaemia and elevated HOMA are evidence for insulin resistance and possibly pancreatic B-cell dysfunction in fatal-CM.
Źródło:
Acta Biochimica Polonica; 2010, 57, 4; 513-520
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduction of random telegraph signal (RTS) noise in CMOS image sensors using histogram analysis
Autorzy:
bin Mustafa, M. A.
Itoh, S.
Kawahito, S.
Powiązania:
https://bibliotekanauki.pl/articles/385238.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
histogram analyses
random telegraph signal (RTS) noise
CMOS image sensor
low-noise
estimated amplitude
Opis:
The paper presents column parallel signal processing techniques for reducing Random Telegraph Signal (RTS) noise of in-pixel source follower by using histogram analysis for the development of a very low-noise CMOS image sensor. In this method, a histogram with multiple samples for reset level is used to estimate the amplitude of the RTS noise. With the median of the histogram and the estimated amplitude, the RTS noise components are removed and the average is calculated with the histogram due to thermal noise only, to further reduce the noise level. Result of the application of the histogram-based noise suppres-sion to an implemented CMOS image sensor prototype for a large sampling numbers is demonstrated.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 202-203
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
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