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Wyświetlanie 1-22 z 22
Tytuł:
Pollution and health risk assessment of water quality: a case study in Mohammedia prefecture in Morocco
Autorzy:
El morabet, R.
Berhazi, L.
Khan, R. A.
Bouhafa, S.
Khan, N. A.
Hakh, T.
Romaniv, A.
Powiązania:
https://bibliotekanauki.pl/articles/2055750.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
water quality assessment
water pollution index
ecological risk
non-carcinogenic risk
carcinogenic risk
ocena jakości wody
wskaźnik zanieczyszczenia wody
ryzyko ekologiczne
ryzyko nierakotwórcze
ryzyko rakotwórcze
Opis:
Purpose: Water is vital for the sustenance of every life form. Urbanization, growing population and industrial development has led to exploitation of water resources globally. This study assesses quality of water resources of Mohammedia prefecture. Design/methodology/approach: The water quality analysis was carried out based on physio-chemical and heavy metal concentrations. The physio-chemical analysis comprised of status of concentration, overall quality and water pollution index evaluation. The heavy metal evaluation consisted of Ecological Risk Index, non-carcinogenic risk and carcinogenic risk assessment. Findings: The landfill near Ben Nfifikh River reported insignificant (WPI<1) – low level of pollution (>1≤1.5) for surface and groundwater points. However, the groundwater for Zenata region was found to pose both carcinogenic (CRt > 0.0001, range 0.4-35.31) and non-carcinogenic risks (HQ>1, range 6 -34) of higher degree rendering it unfit for human consumption. Hence, this study concludes that groundwater resources should not as water supply; instead, Oud El Maleh River can serve as surface water source for meeting requirements of Zenata region. Research limitations/implications: The data obtained can be categorized as landfill area near river Nfifikh and landfill area near river El Maleh. Both areas have been investigated for groundwater and surface water quality assessment. Practical implications: This study demonstrates the need to study the characteristics of groundwater (depth, flow rate, water renewal, etc.) before arranging a waste dump. This problem is especially relevant for arid countries, since residents experience a shortage of water, as well as a lack of rainfall provides a weak renewal of groundwater, which can contribute to the accumulation of a higher concentration of carcinogens in groundwater and provide a high risk to public health. If policymakers in arid countries and decision-makers have effective water quality maps, then the country can be more efficiently managed water resources without risking the population. Originality/value: The current study is planned as a multi-stage, each of which is supposed to conduct field studies of groundwater and surface water quality with appropriate parameters, analysis of institutional reports and related scientific studies in order to create an effective water quality map for rational water use.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2022, 110, 2; 67--85
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SUPERPAVE design mixture performance evaluation using Epolene modifier for cold semi-arid climatic region of Saudi Arabia
Autorzy:
Dahim, M.A.
Mosaby, M.
El Morabet, R.
Khan, R.A.
Alqadhi, S.
Khan, N.A.
Ben Kahla, N.
Neklonskyi, I.
Borysova, L.
Powiązania:
https://bibliotekanauki.pl/articles/2175741.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
SUPERPAVE
Epolene
dynamic modulus test
flow number test
indirect tensile test
badanie modułu dynamicznego
badanie liczby przepływu
pośrednia próba rozciągania
Opis:
Purpose: To evaluate the superpave design performance using Epolene (EE-2) as modifier, since SUPERPAVE design is a modified and sophisticated aspect as compared to previous mix design for asphalt mixtures. This is primarily due to the fact that superpave design mix also takes into consideration properties of materials beside asphalt. Design/methodology/approach: This study was conducted using Epolene (EE-2) as modifier in order to evaluate the performance of SUPERPAVE suitability for construction of roads in Alfaraa campus (King Khalid University) Abha, in Asir Province of Saudi Arabia. Glow number test, dynamic modulus test and indirect tensile strength test were conducted to evaluate the performance of EE-2 modifier against the control mixture. Findings: The mixture modified with EE-2 gave better performance in terms of temperature-based performance and resistance to moisture damage. Also, larger values of E*/sinφ were obtained for EE-2 modified mixture at various loading frequencies and temperature in comparison to control mixture. Research limitations/implications: The Epolene modifier successfully enhances and improves the SUPERPAVE mixture performance. Further studies are required to evaluate the performance of EE-2 modifier at much lower temperature ranges. Practical implications: The results of the study allow us to recommend the investigated asphalt mixture for applied for the construction of roads in the Alfaraa (new campus of King Khalid University), Abha, Asir province, Saudi Arabia. Originality/value: A modified asphalt mixture has been proposed that has better performance at higher and lower temperatures. The developed asphalt mixture is more resistant to moisture damage than the compared to control mixture.
Źródło:
Archives of Materials Science and Engineering; 2021, 112, 2; 49--54
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Initial unsteady free convective flow past an infinite vertical plate with radiation and mass transfer effects
Autorzy:
Khan, A.
Solanki, R.
Powiązania:
https://bibliotekanauki.pl/articles/266197.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
free convection flow
porous medium
heat transfer
mass transfer
MHD
przepływ konwekcyjny
porowatość
przenoszenie ciepła
przenoszenie masy
magnetohydrodynamika
Opis:
An exact solution and analysis of an initial unsteady two dimensional free convection flow, heat and mass transfer in the presence of thermal radiation along an infinite fixed vertical plate when the plate temperature is instantaneously raised, is presented. The fluid considered is a gray, absorbing emitting radiation but a nonscattering medium. Three cases have been discussed, in particular, namely, (i) when, the plate temperature is instantaneously raised to a higher constant value, (ii) when, the plate temperature varies linearly with time and (iii) when, the plate temperature varies non-linearly with time. A close form general solution for all the cases has been obtained in terms of repeated integrals of error functions. In two particular cases, the solutions in terms of the repeated integrals of error functions have been further simplified to forms containing only error functions. It is observed that for an increase in the radiation parameter N or a decrease in the Grashof number Gr or Gm, there is a fall in the velocity or temperature, but compared to the no radiation case or no diffusing species, there is a rise in the velocity and temperature of the fluid.
Źródło:
International Journal of Applied Mechanics and Engineering; 2017, 22, 4; 931-943
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anti-synchronization in different new chaotic systems via active nonlinear control
Autorzy:
Khan, A.
Prasad, R. P.
Powiązania:
https://bibliotekanauki.pl/articles/229711.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
new chaotic system
anti-synchronization
active nonlinear control
Opis:
In this paper, we discuss anti-synchronization between two identical new chaotic systems and anti-synchronization between another two identical new chaotic systems by active nonlinear control. The sufficient conditions for achieving the anti-synchronization of two new chaotic systems are derived based on Lyapunov stability theory. Numerical simulations are provided for illustration and verification of the proposed method.
Źródło:
Archives of Control Sciences; 2013, 23, 2; 229-242
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elimination of microbes from different drinking water sources of Visakhapatnam using potassium permanganate: dose based disinfection approach
Autorzy:
Dadhich, A.S.
Khan, H.R.
Powiązania:
https://bibliotekanauki.pl/articles/11840.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
elimination
microbe
drinking water
water source
Visakhapatnam area
potassium permanganate
disinfection
sanitation
microbial quality
Opis:
Potassium permaganate has been used since ages for disinfection of water. It is known for oxidation of cell membrane of micro organisms. But the pink colour prevailing after use makes people reject the water on aesthetic grounds. Water samples from bore wells and tap water from public places were collected from different areas of Visakhapatnam. Physio-chemical and microbial analysis analyses of the water samples were carried out. A dose based permaganate treatment of water depending upon number of colony forming units and species of microorganism present in the water was carried out [1,2,5].
Źródło:
International Letters of Natural Sciences; 2014, 11, 1
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficient soil solarization for weed control in the rain-fed upland rice ecosystem
Autorzy:
Khan, A.R.
Srivastava, R.C.
Ghorai, A.K.
Singh, S.R.
Powiązania:
https://bibliotekanauki.pl/articles/25142.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
environment
soil
ground water
weed competition
crop yield
herbicide
solarization
ecosystem
rainfed upland
weed control
toxic residue
rice
Źródło:
International Agrophysics; 2003, 17, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Fishery Sectors Linkages Toward Other Sectors In Batubara District of North Sumatera Province, Indonesia
Autorzy:
Rizal, Achmad
Pasaribu, R. H. R.
Khan, Alexander M. A.
Powiązania:
https://bibliotekanauki.pl/articles/1076674.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Batubara District
Linkage
fishery
growth
Opis:
This research aims to analyze the growth rate, and the role of the fisheries sector also to analyze the linkage between the fisheries sector and other sectors in the economic growth rate in the Batubara district. The results of research can be used by local communities and the government as material consideration in determining a policy of management of the economic sector, especially the fisheries sector. This research was carried out from April 2017 to April 2018. The methods utilized are regional superiority analysis, klassentypology analysis, and correlation analysis. The results showed that LQ. LI and SI values of the fisheries sector of Batubara District tend to increase in value from year to year and the fisheries sector itself is in a state of growth. Still, Typology Klassen analysis reveals that the fisheries sector of Batubara district is in the second quadrant. This means that it is advanced but depressed. Moreover, the role of the fisheries sector to other sectors is in the provision of production factors and capital base due to the economy factors built-in to the same space. Herein, the result of correlation analysis of the fisheries sector with other sectors is 0,9. This shows that there is a very strong linkage between the fisheries sector and other sector values in the Batubara District.
Źródło:
World News of Natural Sciences; 2019, 25; 31-43
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between green supply chain performance, energy demand, economic growth and environmental sustainability: an empirical evidence from developed countries
Relacja pomiędzy zielonym zarządzaniem łańcuchem dostaw, popytem na energię, wzrostem ekonomicznym i rozwojem zrównoważonym na podstawie krajów rozwiniętych
Autorzy:
Yu, Z.
Golpîra, H.
Khan, S. A. R.
Powiązania:
https://bibliotekanauki.pl/articles/361761.pdf
Data publikacji:
2018
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
renewable energy
trade openness
greenhouse gas emissions
supply chain management
economic development
energia odnawialna
otwartość handlowa
emisja gazów cieplarnianych
zarządzanie łańcuchem dostaw
rozwój ekonomiczny
Opis:
Background: This study is for examining the association between green logistics, energy demand, renewable energy consumptions, environmental performance and sustainable economic development in a panel of nineteen developed economies around the globe over the period from 2008-2017. In addition, the article expands domain of green logistics from firm level to country level and also connects national scale economic indicators with green logistical performance. Methods: The study employs Pools OLS (ordinary least square) statistical technique to check hypothesis, while secondary data have been used, which were downloaded from the World Bank. Results: The results reveal that the green logistics indicators have strongly positive correlation with green energy sources, FDI inflows, and Trade openness. On the other hand, greenhouse gas emissions and carbon emissions have negative correlation with green logistics. Furthermore, renewable energy is a driving factor of green logistics and supply chain operations which also promote environmental and economic sustainability. Conclusion: This article provides the insight of the association between green logistics performance and national scale economic and environmental indicators. In addition, this research will help practitioners, senior managers and policymaker to understand the importance of renewable energy and green practices in logistical operations.
Wstęp: Praca prezentuje wyniki analizy powiązań pomiędzy zieloną logistyką, popytem na energię, konsumpcją energii odnawialnej, wpływem na środowisko oraz zrównoważonym rozwojem ekonomicznych na podstawie 19 rozwiniętych krajów z całego świata w okresie 2008-2017. Dodatkowo, omówiono rozwiniecie zielonej logistyki z poziomu przedsiębiorstwa do poziomu kraju jak również powiązano krajowe ekonomiczne wskaźniki z działalnością zielonej logistyki. Metody: Zastosowano metodę statystyczną Pools OLS dla sprawdzenia postawionych hipotez, gdzie użyto dane pochodzące z Banku Światowego. Rezultaty: Na podstawie otrzymanych wyników stwierdzono, że wskaźniki zielonej logistyki wykazują silną pozytywną korelację z zielonymi źródłami energii, przepływem FDI oraz otwartością handlu. Z drugiej strony emisja gazów cieplarnianych oraz węgla wykazuje negatywną korelację z zieloną logistyką. Dodatkowo, energia odnawialna jest wiodącym czynnikiem zielonej logistyki i operacji łańcucha dostaw, wspierającym również ekonomiczny rozwój zrównoważony. Wnioski: Praca przedstawia powiązania pomiędzy zieloną logistyką a krajowymi wskaźnikami ekonomicznymi i ekologicznymi. Dodatkowo, daje wskazówki dla praktyków, zarządzających średniego szczebla oraz politykom dla lepszego zrozumienia istotności energii odnawialnej oraz zielonych praktyk w operacjach logistycznych.
Źródło:
LogForum; 2018, 14, 4; 479-494
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of lean management implementation on organizational operational performance
Wpływ wdrożenia zarządzania typu lean na działania operacyjno-organizacyjne
Autorzy:
Hashmi, H.
Khan, N. R.
Haq, M. A.
Powiązania:
https://bibliotekanauki.pl/articles/361959.pdf
Data publikacji:
2015
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
operational performance
daily schedule adherence
repeat production
flow oriented layout
działalność operacyjna
przestrzeganie dziennego harmonogramu
powtarzalność produkcji
schemat przepływu
Opis:
Background: The research aims to develop the consensus between different operational improvement strategies, to address the relationship between the operational characteristics (lean) and operational performance of the organization. Methods: Variables from which the extraction of the outcomes has been established include operational performance, daily schedule adherence, repeat production and flow oriented layout. The technique of data analysis is selected to be Correlation and multiple regressions. The aim for performing these tests is to highlight association of lean strategy with the operational performance. Results and conclusions: The positive association is being established amongst the operational performance and the daily schedule adherence, flow oriented layout and the repeat production. It is suggested to the supply chain management that they must entail their production team for having repetition in their work and become efficient in their production. They must be reached to their optimization level, where they have to extract less waste and have high level of the production.
Wstęp: Celem pracy jest opracowanie konsensusu pomiędzy różnymi operacyjnymi strategiami usprawniającymi w celu znalezienia zależności pomiędzy operacyjnymi cechami organizacji a jej postępowaniem operacyjnym. Metody: Zmienne niezależne, które zostały użytego dla uzyskania zmiennej zależnej to działalność operacyjna, przestrzeganie dziennego harmonogramu, powtarzalność produkcji oraz schemat przepływu. Dane zostały poddane analizie korelacji i regresji wielokrotnej. Celem tych analiz był zbadanie zależności pomiędzy strategią Lean a działalnością operacyjną. Wyniki wnioski: Stwierdzono pozytywną zależność pomiędzy działalnością operacyjną a przestrzeganiem dziennego harmonogramu, powtarzalnością produkcji oraz schematem przepływu. Powinno to służyć jako wskazówka dla zarządzających łańcuchem dostaw aby dążyli do powtarzalności w swojej pracy, co pozwoli na osiągnięcie efektywności produkcji. Należy osiągnąć optymalny poziom, przy którym poziom strat będzie najniższy a poziom produkcji najwyższy.
Źródło:
LogForum; 2015, 11, 4; 375-385
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Induce physical and chemical mutagenesis for improvement of yield attributing traits and their correlation analysis in Chickpea
Autorzy:
Raina, A.
Laskar, R.A.
Khursheed, S.
Khan, S.
Parveen, K.
Amin, R.
Powiązania:
https://bibliotekanauki.pl/articles/11554.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2017, 61
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Change in energy and entropy of the non-spinning black holes
Autorzy:
Mahto, D.
Khan, T. A.
Kumar, A.
Sah, R. K.
Powiązania:
https://bibliotekanauki.pl/articles/412037.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
event-horizon
AGN
Entropy & Energy
Opis:
In the present paper, we have derived an expression for change in entropy of non-spinning black holes on the basis of formula (EBH = KBHRS) as proposed by Kanak Kumari et al. (2010) and the formula δSbh= 2π/(k.c^2 ) δE (Mahto et al., 2011) and calculated their values for different test non-spinning black holes.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 4; 12-19
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neurological and mental health outcomes among conventional and organic farmers in Indiana, USA
Autorzy:
Khan, K.W.
Baidya, R.
Aryal, A.
Farmer, J.R.
Valliant, J.
Powiązania:
https://bibliotekanauki.pl/articles/2081739.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
conventional farming
organic farming
health effects
depression
neurological symptoms
Opis:
Introduction. Every farming method, whether conventional or organic, has been associated with some sort of risky behaviors leading to health issues among farmers. Substantial evidence is not available in the literature to determine whether the magnitudes of health outcomes vary between conventional and organic farmers. The study investigated whether selfreported neurological and mental health symptoms differ between conventional and organic farmers living in Indiana, USA. Materials and method. A self-reported questionnaire survey collected information from 200 conventional and 157 organic farmers of Indiana on demographic characteristics, depression and neurological symptoms. Statistical analyses were conducted to observe the differences in self-reported symptoms by groups of farmers. Results. It was observed that the conventional farmers had significantly higher age-adjusted mean neurological symptom score (p<0.01) than the organic farmers. Regression models revealed positive and significant associations of conventional farming with total (β =1.34; p=0.02), sensory (β =0.83; p=0.001) and behavioural (β =0.09; p=0.03) symptoms after accounting for age, income, education and years in farming. Positive but non-significant associations were also observed in conventional farmers with cognitive and motor symptoms, and with all subscales of depression symptoms in the adjusted models. Conclusion. The findings obtained suggest the importance of a larger study to further explain the difference in mental and neurological health effects in these two categories of farmers.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 2; 244-249
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of waste rubber powder as filler for plywood application
Autorzy:
Ong, H. R.
Khan, M. R.
Yousuf, A.
Jeyaratnam, N.
Prasad, D. M. R.
Powiązania:
https://bibliotekanauki.pl/articles/779508.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
waste rubber powder
melamine-urea formaldehyde resin
filler
wood adhesive
plywood
Opis:
The study investigated the suitability of waste rubber powder (WRP) use as filler in adhesive formulation for plywood application. Melamine Urea Formaldehyde (MUF) was employed as resin for formulating the wood adhesive. To improve chemical properties and bonding quality of adhesive, WRP was treated by different chemicals like 20% nitric acid, 30% hydrogen peroxide and acetone solution. The treated WRP were analysed by XRD and it showed that inorganic compounds were removed and carbon was remained as major component under the treatment of 20% HNO3. The treatment improved the mechanical properties like shear strength and formaldehyde emission of plywood (high shear strength and low formaldehyde emission). The physico-chemical interaction between the wood, resin and filler was investigated using fourier transform infrared spectroscopic (FTIR) technique and the interactions among N-H of MUF and C=O of wood and WRP were identified. The morphology of wood-adhesive interface was studied by field emission scanning electron microscope (FESEM) and light microscope (LM). It showed that the penetration of adhesives and fillers through the wood pores was responsible for mechanical interlocking. Therefore, chemically treated WRP proved its potential use as filler in MUF based adhesive for making plywood.
Źródło:
Polish Journal of Chemical Technology; 2015, 17, 1; 41-47
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of defective turbocharging system on the safety and reliability of large marine diesel engine
Autorzy:
Anantharaman, M.
Islam, R.
Sardar, A.
Garaniya, V.
Khan, F.
Powiązania:
https://bibliotekanauki.pl/articles/1841550.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
marine power plant
diesel engine
large marine diesel engine
turbocharging system
safety and reliability
Fault Tree Analysis
main engine
maximum continuous rating
Opis:
Today huge capacity sea-going vessels are propelled by mega high-powered marine diesel engines, referred to as Main Engine. Turbocharging system is an integral part of large marine diesel engine plant, contributing to their safety, reliability, and efficiency. Defects in the turbocharging system could result in higher fuel consumption, erratic running of the Main Engine, and in the worst scenario may result in the stoppage of the Main Engine at sea. An inefficient turbocharging system may also cause major damage to turbochargers, resulting in undesirable accidents out at sea. To avoid such undesirable accidents and ensure smooth operations of the Main Engine, it is required to address this concern. The aim of this research is to study the turbocharging system for a large Main Engine using a Kongsberg engine simulator. Various malfunction of the Turbocharging system is considered, relevant data is collected and analysed. Moreover, a Fault Tree Analysis, (FTA) is considered to identify the top undesirable event which is the failure of the Main Engine. Based on the results of this study, various steps are suggested to avoid failure of the Main Engine due to the defective turbocharging system.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 1; 189-198
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extension of shelf-life of tomato using irradiated chitosan and its physical and biochemical characteristics
Autorzy:
Parvin, N.
Kader, M.A.
Huque, R.
Molla, M.E.
Khan, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/10996.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2018, 67
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agro-morphological characterization of Brassica rapa L. germplasm from Azad Jammu and Kashmir
Autorzy:
Ashraf, M.
Abbas, S.R.
Begum, S.
Gardezi, S.D.A.
Khan, R.T.
Powiązania:
https://bibliotekanauki.pl/articles/12700475.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Brassica rapa is an important crop of Azad Jammu and Kashmir which is a major source of vegetable and oil. The study was carried out to evaluate the genetic diversity among Brassica rapa germplasm grown in Azad Jammu and Kashmir based on their morphological characters and yield. The present study was carried out in the field of National Institute of Genomics and Advanced Biotechnology (NIGAB), NARC Islamabad from October 2017 to March 2018. The study showed great diversity among the germplasm for days to germination, primary branches, secondary branches, maturity, plant height, number of silique, seeds per silique, yield per plant and 1000 seed weight. The genotypes 026509, 026514 and 026548 showed maximum yield and other better morphological responses, so these genotypes should be used in future to enhance the production of this crop.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 4; 31-39
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors Affecting the Performance of Double Chamber Microbial Fuel Cell for Simultaneous Wastewater Treatment and Power Generation
Autorzy:
Khan, M.R.
Amin, M.S.A.
Rahman, M.T.
Akbar, F.
Ferdaus, K.
Powiązania:
https://bibliotekanauki.pl/articles/779340.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
catholyte
COD
Microbial Fuel Cell
wastewater treatment
Opis:
Electricity generation from the readily biodegradable organic substrate (glucose) accompanied by decolorization of azo dye was investigated using a two-chamber microbial fuel cell (MFC). Batch experiments were conducted to study the effect of dye and substrate concentration on MFC performance. Electricity generation was not signifi cantly affected by the azo dye at 300 mg/L, while higher concentrations inhibited electricity generation. The chemical oxygen demand (COD) removal and decolorization of dye containing wastewater used in the MFC were studied at optimum operation conditions in anode and cathode, 57% COD removal and 70% dye removal were achieved. This study also demonstrated the effect of different catholyte solutions, such as KMnO4 and K2Cr2O7 on electricity generation. As a result, KMnO4 solution showed the maximum electricity generation due to its higher standard reduction potential.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 1; 7-11
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Collection of hospital wastewater data using deduplication approaches
Autorzy:
Khan, N. A.
Sinha, G. R.
Ahmed, S.
Feshchenko, A.
Changani, F.
Qureshi, A.
Mazhar, M. A.
Neklonskyi, I.
Powiązania:
https://bibliotekanauki.pl/articles/1818511.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
statistics
hospital wastewater
medical waste
deduplication
approaches
servers
statystyka
ścieki szpitalne
odpady medyczne
deduplikacja
podejścia
serwery
Opis:
Purpose: This investigation aims to study the various approaches currently used to reduce the load on computer servers in order to better manage data on hospital wastewater treatment and solid waste generation. Design/methodology/approach: This manuscript investigates the taxonomies of deduplication procedures based on literature and other data sources, thereby presenting its classification and its challenges in detection. Findings: Based on the literature survey of deduplication techniques, the method of deduplication dispensed on cloud gadget devices has been found to be a promising research challenge. The gaps discussed include a reduction in storage space, bandwidth, type of disks used, and expenditure on energy usage and heat emissions when implementing these strategies. The art work on a scalable, robust, green and allocated approach to deduplication for a cloud gadget will remain of interest in destiny. Research limitations/implications: Considerable attention is focused on the deduplication due to efficient, extensive storage system. Practical implications: This research paper will be useful to identify deduplication techniques which are nowadays used in different hospital wastewater data collection systems and put significant proposals for further improvements in deduplication. Originality/value: This manuscript portrays a broader assessment of the available literature for data duplication along with the classification of different methods for the data storage used in the different level of storage of hospital wastewater data collection.
Źródło:
Archives of Materials Science and Engineering; 2020, 104, 1; 5--18
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk factors for outbreaks caused by variant strain of Newcastle disease on environmentally controlled broiler chicken farms in Lahore, Pakistan
Autorzy:
Maqsood, R.
Khan, A.
Mushtaq, M.H.
Yaqub, T.
Aslam, M.A.
Rashid, H.B.
Gill, S.S.
Akram, R.
Rehman, A.
Chaudhry, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087145.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Newcastle disease
retrospective
environmentally controlled house
biosecurity
vaccine
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 4; 497-503
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Marine Debris Pathway Across Indonesian Boundary Seas
Autorzy:
Purba, Noir P.
Faizal, Ibnu
Cordova, Muhammad R.
Abimanyu, Amarif
Afandi, Najma K. A.
Indriawan, Dena
Khan, Alexander M. A.
Powiązania:
https://bibliotekanauki.pl/articles/1839151.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
floating debris
Indonesia Throughflow
marine pollution
wind
ocean current
Opis:
The complex circulation for both atmospheric and ocean affects the pathways of floating marine debris (MD). The aim of this research was to define the MD trajectories in the Indonesian boundary seas. The Lagrangian particle method was applied with oceanographic factors and debris classes based on 1 to 3% windage class. The simulation was applied during the Northwest and Southeast Monsoon period. On the basis of the obtained findings, the debris trajectory patterns were indicated to vary in the two monsoons. In the northern part of Indonesia, all neighbouring countries were affected, especially those near the boundaries. In the southern part of Indonesia, most of the debris headed west towards the Indian Ocean. MD was mostly transported by the ocean currents and monsoonal wind and ended up in the coastal area. Some debris was also still floating in the open ocean after three months. This study concluded that marine litter not only polluted Indonesia water, but also the neighbouring countries.
Źródło:
Journal of Ecological Engineering; 2021, 22, 3; 82-98
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antibacterial activity of iron oxide nanoparticles synthesized by co-precipitation technology against Bacillus cereus and Klebsiella pneumoniae
Autorzy:
Ansari, S. A.
Oves, M.
Satar, R.
Khan, A.
Ahmad, S. I.
Jafri, M. A.
Zaidi, S. K.
Algahtani, M. H.
Powiązania:
https://bibliotekanauki.pl/articles/778380.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
antibacterial activity
co-precipitation
iron oxide nanoparticles
Klebsiella pneumoniae
physico-chemical characterization
Opis:
The present study investigates the synthesis and characterization of iron oxide nanoparticles (Fe3 O4 -NPs) for their antibacterial potential against Bacillus cereus and Klebsiella pneumonia by modified disc diffusion and broth agar dilution methods. DLS and XRD results revealed the average size of synthesized Fe3 O4 -NPs as 24 nm while XPS measurement exhibited the spin-orbit peak of Fe 2p3/2 binding energy at 511 eV. Fe3 O4 -NPs inhibited the growth of K. pneumoniae and B. cereus in both liquid and soild agar media, and displayed 26 mm and 22 mm zone of inhibitions, respectively. MIC of Fe3 O4 -NPs was found to be 5 μg/mL against these strains. However, MBC for these strains was observed at 40 μg/mL concentration of Fe3 O4 -NPs for exhibiting 40–50% loss in viable bacterial cells and 80 μg/mL concentration of Fe3 O4 -NPs acted as bactericidal for causing 90–99% loss in viability. Hence, these nanoparticles can be explored for their additional antimicrobial and biomedical applications.
Źródło:
Polish Journal of Chemical Technology; 2017, 19, 4; 110-115
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Future applications of apricot (Prunus armeniaca kaisa) ß galactosidase in dairy industry
Autorzy:
Ansarin, S. A
Satar, R.
Zaidi, S. K.
Khan, M. J.
Naseer, M. I.
Al-Qahtani, M. H.
Maskat, M. Y.
Powiązania:
https://bibliotekanauki.pl/articles/779412.pdf
Data publikacji:
2014
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
apricot
β galactosidase
lactose hydrolysis
dairy industries
Opis:
The present study demonstrates the immobilization of β galactosidase from apricots (Prunus armeniaca kaisa) on an inexpensive concanavalin A layered cellulose-alginate hybrid gel. Immobilized β galactosidase retained 78% of the initial activity after crosslinking by glutaraldehyde. It exhibited greater fraction of activity at both acidic and basic pH, and showed broad spectrum temperature optimum as compared to free enzyme. Moreover, immobilized enzyme exhibited higher thermal stability at 60oC and retained 80% of the original enzyme activity in presence of 3% galactose. The crosslinked immobilized enzyme showed improved hydrolysis of lactose from milk and whey in batch processes at 50oC as well as in continuous reactors operated at flow rate of 20 mL/h and 30 mL/h even after one month. Moreover, crosslinked adsorbed β galactosidase retained 76% activity even after its sixth repeated use, thereby promoting its use for lactose hydrolysis in various dairy products even for longer durations.
Źródło:
Polish Journal of Chemical Technology; 2014, 16, 3; 74-79
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
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