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Tytuł:
Zmiana klimatu i ich wpływ na budownictwo i komfort życia mieszkańców miast, przykład Warszawy
Climate changes and their impact on construction and living comfort for city residents, the example of Warsaw
Autorzy:
Błażejczyk, Krzysztof
Błażejczyk, Anna
Powiązania:
https://bibliotekanauki.pl/articles/24202851.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwa Geofizyczne
Tematy:
Umowne Kategorie Klimatu
zmiany klimatu
CP4.5
RCP8.5
Warszawa
Conventional Climate Categories
climate change
RCP4.5
Warsaw
Opis:
Stały rozwój terytorialny miast jest drugim, obok zmiany klimatu, czynnikiem pociągającym za sobą istotne pogorszenie jakości ich środowiska. Tendencji tej ulega m.in. klimat lokalny obszarów zurbanizowanych, co przejawia się przede wszystkim wzrostem temperatury powietrza oraz zakłóceniem reżimu opadowego. Zmiany klimatu mają duży wpływ na sektor budownictwa zarówno na etapie powstawania, jak i eksploatacji inwestycji oraz – poprzez coraz trudniejsze warunki mikro-i bioklimatyczne – na warunki życia mieszkańców miast. W artykule przedstawiono historyczny, aktualny i prognozowany stan klimatu w Warszawie rozpoznany z punktu widzenia oddziaływania na budownictwo (w kontekście tzw. Umownych Kategorii Klimatu) i komfort życia mieszkańców obszarów zurbanizowanych. Do analiz wykorzystano wyniki obserwacji prowadzonych na stacji meteorologicznej Warszawa–Okęcie w okresie 1971-2020 oraz symulacji dla okresu 2021-2070 według scenariuszy RCP4.5 i RCP8.5, udostępnione w bazie danych METEONORM 8.0. Zarówno historyczne, jak i prognozowane cechy klimatu Warszawy wskazują, że największe zmiany dotyczą warunków termicznych. Wartości temperatury powietrza od wielu lat systematycznie wzrastają (średnio o około 0,5°C/10 lat) i proces ten będzie trwał w przyszłości. Wyraźnie mniejsze zmiany mają miejsce w przypadku reżimu opadowego i wiatrowego. Obserwowana zmiana klimatu stanowi duże wyzwanie dla mieszkańców i władz miasta oraz architektów i urbanistów. Artykuł zawiera kilka propozycji rozwiązania tych problemów poprzez zmiany w zagospodarowaniu przestrzeni miejskich.
The constant territorial development of cities is the second factor, apart from climate change, which entails a significant deterioration in the quality of their environment. This tendency is followed by the local climate of urbanized areas, which is manifested primarily by the increase in air temperature and the disruption of the precipitation regime. Climate change has a major impact on the construction sector, both at the stage of planning and operation of investments, and – trough increasingly difficult micro- and bioclimatic conditions – on the living conditions of city dwellers. The article presents the historical, current and projected state of the climate in Warsaw recognized from the point of view of its impact on construction (through analysis of so-called Conventional Climate Categories) and on the comfort of life of the residents of urban areas. The results of observations conducted at the Warszawa–Okęcie meteorological station in the period 1971-2020 and simulations for the period 2021-2070 according to the RCP4.5 and RCP8.5 scenarios, available in the METEONORM 8.0 database, were used for the analysis of so-called Conventional Climate Categories as well as their influence on micro- and bioclimatic conditions and on the living conditions of city dwellers. Both historical and projected features of Warsaw’s climate indicate that the greatest changes concern thermal conditions. Air temperature values have been steadily increasing for many years (on average by about 0.5°C/10 years) and this process will continue in the future. Significantly smaller changes take place in the case of precipitation and wind regimes. The observed climate changes pose a great challenge for the inhabitants and city authorities, as well as for architects and urban planners. The article contains several proposals for solving these problems through changes in the development of urban spaces.
Źródło:
Przegląd Geofizyczny; 2023, 1-2; 29--53
0033-2135
Pojawia się w:
Przegląd Geofizyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of fibre laser welding parameters on the microstructure and weld geometry of commercially pure titanium
Autorzy:
Abdulridha, M.M.
Jilabi, A.S.J.A.Z.
Powiązania:
https://bibliotekanauki.pl/articles/24200584.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
fibre laser welding
laser power
welding speed
CP titanium
depth penetration weld
weld width
spawanie laserem światłowodowym
moc lasera
prędkość spawania
CP tytan
głębokość wtopienia spoiny
szerokość spoiny
Opis:
Purpose: The primary purpose of the study was the metallurgical characterization of laser welds. The weldability of commercial production of pure titanium and titanium alloy (CP-Ti) has also been examined. Design/methodology/approach: In this research, the laser fibre method was used to weld sheets of pure titanium, and then microscopy and scanning electron microscopy were used to study the changes in the microstructure, the depth of weld penetration and the width of the weld area with changing welding parameters. Findings: The results proved that increasing the laser power significantly increases the depth of weld penetration and weld width. When the heat input is increased, the shape of the weld pool changes from a V shape to an hourglass shape. It was also observed that the depth of the crater formed increases with the increase in the laser power due to the increase in the melting and evaporation of the weld metal. Increasing the welding speed also has a negative impact on the weld geometry because it reduces the heat input and absorption of laser energy by the weld metal and thus reduces the melting of the metal. The microstructure of the fusion zone consists of acicular α. Fine grains formed in the weld centre at low heat input; the granules became columnar-like. Since commercially pure titanium contains a small amount of beta-phase stabilizers, the cooling rate is extremely high for martensite to occur. Research limitations/implications: In the future, it is recommended to study the effect of changing welding parameters on the mechanical properties of pure titanium because of its great importance in industrial and medical applications. Originality/value: Studying the effect of changing laser power and welding speed on the metallurgical properties of pure titanium, and consequently its effect on the mechanical properties of welds.
Źródło:
Archives of Materials Science and Engineering; 2022, 117, 1; 34--41
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of acute-phase protein concentrations in healthy and various diseased cats
Autorzy:
Tuna, G.E.
Ulutas, B.
Powiązania:
https://bibliotekanauki.pl/articles/16647378.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
acute phase protein
AGP
cat
Cp
Hp
SAA
SIRS
Opis:
This study aimed to evaluate the concentrations of α1-acid glycoprotein (AGP), haptoglobin (Hp), serum amyloid-A (SAA) and ceruloplasmin (Cp) in healthy and various diseased cats and establish reference intervals (RIs) for these acute phase proteins (APPs) in healthy cats. The animal material of the study consisted of 40 healthy cats and 152 cats with various diseases. The serum APPs in the diseased group were higher than those in the healthy group, and age affected Cp concentration in healthy cats. Also, the systemic inflammatory response syndrome (SIRS) positive (+) group had significantly higher AGP concentrations than the SIRS negative (-) group. In conclusion, this study contributes to the limited number of studies on RIs in serum APPs concentrations in healthy cats. The results of this study suggest that APPs are valuable diagnostic tools for identifying the inflammatory processes of various diseases, and AGP concentration could help determine the severity of the inflammatory condition.
Źródło:
Polish Journal of Veterinary Sciences; 2022, 25, 4; 589-597
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Semantic product personalization based on the CogniPy environment
Autorzy:
Dobrowolski, Dariusz
Świątkowski, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/27313487.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
ontology
semantics
CogniPy
CP Factory
ontologia
semantyka
Opis:
Purpose: The aim of the publication was to visualize the process of creating knowledge on the example of the CP Factory production line. For this purpose, the data contained in the relational databases and data of the operating production line were used. This data was converted to the form required by the CogniPy environment to create a semantic ontology for product personalization. Design/methodology/approach: With the available software based on ontologies and knowledge charts, the possibility of common human-computer reasoning has been opened, especially in production management. Findings: During the activities carried out, the on-conceptualization of the knowledge contained in the production management system was brought to an ontological form. At the moment, the information contained in the database is not very different from the data existing in the relational database. However, further modeling of ontology can be directed towards the creation of rules, logic and axioms of production processes. Practical implications: The operations and transformations performed presented the operation of CogniPy in the process of creating ontology and materializing the graph and queries. The created ontology takes the form of a universal set of knowledge that makes it open to wide integration with other systems. Originality/value: The publication shows the possibilities of using the CogniPy environment in the construction of ontology and semantic product personalization.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2022, 162; 141--152
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The attitude of the soviet authorities to the first wave of ‘nomaders’ according to the documents of the ‘special folders’ of the CC CP(B)K
Autorzy:
SHOTAYEV, Madi Tursynbekovich
ALIMGAZINOV, Kairat Shakarimovich
ZHUGENBAYEVA, Gulbanu
Powiązania:
https://bibliotekanauki.pl/articles/2142414.pdf
Data publikacji:
2022-09-08
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
Central Committee of the CP(b)K
Xinjiang
special folders
migration
defectors
nomads
Opis:
The central party organs dealt with all issues of the internal and foreign policy of the republic, led the national economy, public organizations, and personnel policy. Therefore, the documents of the ‘special folders’ of the Central Committee of the Communist Party (b) Kazakhstan reflect various spheres of the life of the republic, which for a long time were not available to researchers due to the highest secrecy stamp imposed. The article deals with one of such areas of the problem – the settlement of Kazakh repatriates and representatives of other nationalities from China, who left during the civil war, collectivization, famine and repressions, who, unable to withstand the attitude of local residents and the persecution of the authorities of the country, republic or regions to which they moved, returned back to Kazakhstan. The ways of solving problems related to their settlement in Soviet farms, organization of trade with them, their cultural services, medical care, their resettlement, maintenance and veterinary services for their livestock are analyzed. Authors describes the reasons and measures to prevent the mass return of "nomads" back to China, despite all the decisions taken, the measures taken by the leadership of the republic in connection with the gaps made by some representatives of local authorities during their placement.
Źródło:
Historia i Świat; 2022, 11; 273-290
2299-2464
Pojawia się w:
Historia i Świat
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie aktywności proteazy kapsydowej CP w rozwoju infekcji alfawirusowych
The role of capsid protease CP activity in the development of alphaviral infections
Autorzy:
Torzyk, Karolina
Skoreński, Marcin
Sieńczyk, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2200548.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
alfawirusy
arbowirusy
proteazy serynowe
proteaza kapsydowa CP
inhibitory
alphaviruses
arboviruses
serine proteases
capsid protease CP
inhibitors
Opis:
Alphaviruses belong to the worldwide distributed Togaviridae family and Alphavirus genus. They are spherical, enveloped, single-stranded RNA arthropodborne viruses. Alphaviruses are mostly transmitted by mosquitoes (Aedes spp. and Anopheles spp.) and are geographically distributed in restricted areas where appropriate vectors are present (Fig.1.). The most recognized members of this genus are Sindbis (SINV), Semliki Forest (SFV), Venezuelan equine encephalitis (VEEV), Ross River (RRV), and Chikungunya (CHIKV) viruses. Alphaviruses are infection agents for humans and many animals. Clinically, most human infections with arthritogenic alphaviruses are associated with symptoms such as fever, headache, joint pain, rash, chronic arthritis, and encephalitis. Major events during the alphaviral infection are virus entry, replication, assembly, and budding of new virions. Alphaviral RNA encodes four nonstructural and five structural proteins. Nonstructural proteins are mainly involved in the replication process and virus pathogenesis, while structural proteins form new virions. Both groups of viral proteins are produced as single polyproteins which undergo autoproteolytic maturation. This process is carried out by the two viral proteases, cysteine protease nsP4 and C protein serine protease (CP), and is considered to be critical for virus replication. The capsid protease CP is a chymotrypsin-like serine protease with the catalytic triad including His145, Asp167, and Ser219. What is important, after a suicidal autoproteolytic event the side chain of Trp267 remains bound in a hydrophobic S1 pocket thus inhibiting further trans-proteolytic activity. Alphaviral capsid protein undergoes a single proteolytic reaction before maturation and then, after selfinactivation, it assembles to form a viral capsid shell. Inhibitors of the capsid protease have significant antiviral activity. Compounds belonging to this group can be good candidates for new antiviral drugs.
Źródło:
Wiadomości Chemiczne; 2022, 76, 5-6; 309--321
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fast model for phase transformations during cooling of pre-annealed multiphase steels
Szybkie modele przemian fazowych podczas chłodzenia wstępnie wyżarzonych stali wielofazowych
Autorzy:
Szeliga, Danuta
Kuziak, Roman
Zalecki, Władysław
Pidvysotskyy, Valeriy
Chang, Yuling
Bleck, Wolfgang
Bachniak, Daniel
Pietrzyk, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/29520329.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
CP steel
phase transformations
mean field models
stal CP
przemiany fazowe
średnie modele pola
Opis:
A thorough experimental and numerical analysis of phase transformations in a selected CP800 steel was the general objective of the paper. Dilatometric tests were performed for a wide range of cooling rates. Two models based on a mean field approach were considered. The first was an upgrade of the Johnson-Mehl-Avrami-Kolmogorov equation. The second model was based on the Leblond equation. Both models were identified using inverse analysis of the experimental data. Simulations of various cooling schedules were performed to validate the models. Phase compositions for these cooling schedules were determined. Following this the effect of elements' segregation during solidification of steel on the occurrence of marteniste/bainite bands was accounted for using the developed models.
W artykule opisano doświadczalną i numeryczną analizę przemian fazowych w wybranej stali o podwyższonej wytrzymałości. Próby dylatometryczne wykonano w szerokim zakresie prędkości chłodzenia. Rozważono dwa modele wykorzystujące metodę średniego pola. Pierwszym modelem była zmodernizowana wersja modelu JMAK (Johnson-Mehl-Avrami-Kolmogorov). Drugim modelem było rozwinięcie równania Leblonda. Przeprowadzono identyfikację modeli wykorzystując rozwiązanie odwrotne dla prób dylatometrycznych. W celu walidacji modeli wykonano symulacje różnych schematów chłodzenia. Wyznaczono skład fazowy dla tych schematów. Następnie oszacowano wahania składu chemicznego w badanej stali i wykorzystano opracowane modele do określenie wpływu segregacji pierwiastków podczas krzepnięcia stali na powstawanie pasm martenzytu/bainitu.
Źródło:
Computer Methods in Materials Science; 2019, 19, 4; 150-161
2720-4081
2720-3948
Pojawia się w:
Computer Methods in Materials Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Halogenated organic compounds in water and in wastewater
Autorzy:
Włodarczyk-Makuła, Maria
Wiśniowska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/395983.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
organic compounds
wastewater
water
halogenated compounds
NOM
DBPs
OBPs
AOX
THM
HAN
CP
związki organiczne
ścieki
woda
HK
CH
Opis:
Currently, organic halogen compounds (halogen derivatives) are often identified in water. The paper presents the problem of the presence of these newly formed compounds during water treatment processes and their occurrence in sewage. The general indicator determining the content of these compounds in aqueous solutions is the concentration of halogen derivatives of organic compounds adsorbed on activated carbon AOX, which is converted to the concentration of chlorides. The groups of derivatives of halogenated organic compounds containing chlorine and/or bromine in a molecule were characterized, and the precursors and potential for the formation of these compounds in water were described. Moreover, technological methods to prevent and remove them were described.
Źródło:
Civil and Environmental Engineering Reports; 2019, 29, 4; 236-247
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low Power PLL for Communication System
Autorzy:
Tyagi, Mohit
Powiązania:
https://bibliotekanauki.pl/articles/1075551.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
True single phase clock (TSPC)
charge-pump (CP)
low - power
low-jitters
phase frequency detector (PFD)
phase locked loop (PLL)
Opis:
This paper presents the design aspects of low power digital PLL. The performance determining parameters of a digital PLL are lock range, capture range, jitter in generated output signal and power consumption. Its performance is mainly governed by two building blocks namely the voltage controlled oscillator (VCO) and phase detector. We have performed the complete analysis of phase noise and power consumption of current starved VCO, a novel D flip-flop based phase detector and transmission gate based charge pump. We have introduced a charge pump which is giving a remarkable reduction in reference spur. As PLL is used for many applications like as a frequency synthesizer, for clock deskewing, for jitter reduction, in FM radios so everyone demands a low cost low power highly integrated PLL design. Best efforts have been made to design a MOSFET based low power, low cost GHz range digital PLL. The main objective of this paper is to design a low power digital PLL which produces a very stable clock signal having jitter less than 1ps, power consumption less than 805uw ,output frequency ranged from 0 to380MHz at a supply voltage of 1.8V.
Źródło:
World Scientific News; 2019, 121; 26-34
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microstructure and Properties of YSZ Coatings Prepared by Plasma Spray Physical Vapor Deposition for Biomedical Application
Autorzy:
Barczyk, J.
Dercz, G.
Matuła, I.
Góral, M.
Maszybrocka, J.
Bochenek, D.
Gurdziel, W.
Powiązania:
https://bibliotekanauki.pl/articles/356455.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
PS-PVD method
bioactive coatings
cp-Ti
YSZ
osseointegration
Opis:
This paper presents the study of microstructure and properties of 8 mol% yttrium stabilized zirconia coating fabricated by Plasma Spray Physical Vapor Deposition technique on commercial pure titanium. The coating was characterized by X-ray diffraction, high resolution scanning electron microscope, profilometer, nanoindentation and nanomachining tests. The X-ray phase analysis exhibit the tetragonal Zr0.935 Y0.065O1.968, TiO and α-Ti phases. The Rietveld refinement technique were indicated the changes of crystal structure of the produced coatings. The characteristic structure of columns were observed in High Resolutions Scanning Electron Microscopy. Moreover, the obtained coating had various development of surfaces, thickness was equal to 3.1(1) μm and roughness 0.40(7) μm. Furthermore, the production coatings did not show microcracks, delamination and crumbing. The performed experiment encourages carried out us to tests for osseointegration.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 2; 779-783
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular composition of humic substances isolated from selected soils and cryconite of the Grønfjorden area, Spitsbergen
Autorzy:
Polyakov, Vyacheslav
Zazovskaya, Elya
Abakumov, Evgeny
Powiązania:
https://bibliotekanauki.pl/articles/2041903.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Svalbard
CP/MAS 13C-NMR
elemental composition
organic matter
Źródło:
Polish Polar Research; 2019, 40, 2; 105-120
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Best Model of LASSO With The LARS (Least Angle Regression and Shrinkage) Algorithm Using Mallow’s Cp
Autorzy:
Januaviani, Trisha Magdalena Adelheid
Gusriani, Nurul
Joebaedi, Khafsah
Supian, Sudradjat
Subiyanto, Subiyanto
Powiązania:
https://bibliotekanauki.pl/articles/1076395.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cp Mallows
LARS
LASSO
Multicollinearity
Opis:
Multicollinearity often occurs in regression analysis. Multicollinearity is a condition of correlation between independent variables which is a problem. One method that can overcome multicollinearity is the LASSO (Least Absolute Shrinkage and Selection Operator) method. LASSO is able to help to shrink multicollinearity and improve the accuracy of linear regression models. Estimators of LASSO parameters can be solved by the LARS (Least Angle Regression and Shrinkage) algorithm by algorithm which calculates the correlation vector, the largest absolute correlation value, equiangular vector, inner product vector, and determines the LARS algorithm limiter for LASSO. Selecting the best model using the Mallow’s C_p statistics. The smallest Mallow’s C_p value will be selected as the best model. LASSO method with a more detailed procedure with LARS algorithm and selecting the best model using the Mallow’s C_p statistics is discussed in this paper.
Źródło:
World Scientific News; 2019, 116; 245-252
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Catalytic compositions based on chlorides of d metals and natural aluminosilicates for the low-temperature sulfur dioxide oxidation with air oxygen
Autorzy:
Rakitskaya, T.
Kiose, T.
Golubchik, K.
Dzhiga, G.
Ennan, A.
Volkova, V.
Powiązania:
https://bibliotekanauki.pl/articles/1052764.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.cp
33.20.Ea
81.05.Ni
Opis:
Samples of natural bentonite and clinoptilolite modified with copper(II), iron(III), and palladium(II) were characterized by both X-ray phase and the Fourier transform infrared spectral methods. The activity of monometallic compositions M_{i}L_{j}/S(M = Co(II), Fe(III), and Pd(II); L = NO₃¯, Cl¯, and SO₄²¯; S = N-CLI or N-Bent) in the reaction with sulfur dioxide was found to depend on the nature of both a metal ion and a support. For bimetallic compositions Cu(II)-Fe(III) and Cu(II)-Pd(II) based on the natural aluminosilicates, a certain synergism in the action of metals forming these pairs towards the reaction of sulfur dioxide oxidation with oxygen was determined.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 1074-1078
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrochemical Characterization of Ca₆₅Mg₁₅Zn₂₀ Amorphous Alloy in Selected Physiological Fluids
Autorzy:
Babilas, R.
Szyba, D.
Kania, A.
Pilarczyk, W.
Nowosielski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1029772.pdf
Data publikacji:
2018-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.cp
64.70.pe
68.35.bd
82.45.Bb
82.80.Fk
Opis:
The corrosion behavior of the bulk glassy samples of Ca₆₅Mg₁₅Zn₂₀ alloy was studied by electrochemical measurements and immersion tests in a simulated body fluid, physiological fluid, and the Ringer solution. The results of immersion show that the volume of H₂ evolved after 2 h in simulated body fluid (29.8 ml/cm²) is the highest in comparison with the results of measurements conducted in physiological fluid (11.3 ml/cm²) and the Ringer solution (7.4 ml/cm²). The electrochemical measurements indicated a shift of the corrosion potential (E_{corr}) from -1.58 V for plate tested in a physiological fluid to -1.56 V and -1.54 V for samples immersed in the Ringer solution and simulated body fluid, adequately. The X-ray diffraction measurements were used to determine composition of corrosion products. The corrosion products were mainly identified to be calcium carbonates and calcium/magnesium hydroxides.
Źródło:
Acta Physica Polonica A; 2018, 133, 2; 228-231
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Glyphosate in agronomic performance and seed quality of soybean with cp4-EPSPs and cry1Ac genes
Autorzy:
Silva, A.F.M.
Albrecht, A.J.P.
Albrecht, L.P.
Pellicci, V.A.
Giovanelli, B.F.
Ghirardello, G.A.
Viana, H.R.M.
Filho, R.V.
Powiązania:
https://bibliotekanauki.pl/articles/66021.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
crop injury
Glycine max
soybean
glyphosate-tolerant soybean
herbicide
selectivity
agronomic performance
seed quality
cp4-EPSPs gene
cry1Ac gene
Opis:
The “second generation” of glyphosate-tolerant soybean (GT2 soybean) was developed through a different technique of insertion of the glyphosate-insensitive EPSPs gene, in comparison with “first generation” of glyphosate-tolerant soybean. However, there is not enough information available about glyphosate selectivity in GT2 soybean and the effects on the quality of seeds produced. The aim of this study was to evaluate tolerance to glyphosate and seed quality of soybean cultivar NS 6700 IPRO (GT2) with cp4-EPSPs and cry1Ac genes, after application at post-emergence (V4). The experiment was conducted in a randomized block design with four replicates and seven treatments, or rates of glyphosate (0; 720; 1,440; 2,160; 2,880; 3,600; 4,320 g of acid equivalent − a.e. · ha−1). Assessments were performed for crop injury, SPAD index and variables related to agronomic performance and seed quality. A complementary trial with the same cultivar and treatments in a greenhouse was conducted in a completely randomized design with four replications. Data analysis indicated no significant effect of glyphosate on V4 on agronomic performance and physiological quality of seeds, for two growing seasons. The soybean cultivar NS 6700 IPRO (GT2), with cp4-EPSPs and cry1Ac genes, was tolerant to glyphosate up to the maximum rate applied (4,320 g a.e. · ha−1) at post-emergence (V4). The quality of soybean seeds was not affected by glyphosate up to the maximum rate applied (4,320 g a.e. · ha−1) at post-emergence (V4).
Źródło:
Journal of Plant Protection Research; 2018, 58, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł

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