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Tytuł:
Application of a Logistic Function to Describe the Growth of Fodder Galega
Autorzy:
Rymuza, K.
Bombik, A.
Powiązania:
https://bibliotekanauki.pl/articles/123385.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
oriental goat’s rue
logistic function
growth equation
growth rate equation
growth rate
Opis:
It was attempted in the paper to describe the growth of oriental goat’s rue (Galega orientalis Lam.) growth by means of a logistic function. The studies demonstrated that the function describes empirical data well as the coefficients of determination obtained ranged between 97 to 98%, depending on the growing season. The estimated function parameters indicate that both the plant height and growth rate were conditioned by thermal conditions and moisture during the growing season. Plants had the longest stems in the year 2010 (127.9 cm), and the shortest in 2008 (105.9 cm). The maximum growth rate ranged from 2.12 to 3.97 cm per day in, respectively, 2009 and 2008. Also the inflection point, the point at which plants grew the fastest, depended on the conditions of the growing season.
Źródło:
Journal of Ecological Engineering; 2017, 18, 1; 125-131
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consequences of human overpopulation and strategies of its prevention
Autorzy:
Ferdynus, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/512750.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Diecezjalne Adalbertinum
Tematy:
human overpopulation
population growth rate
poverty
Opis:
The sense of threat resulting from the potential overpopulation of our globe is not a new phenomenon. As early as in ancient times, philosophers raised concerns over the excessive number of people that could disturb the stability of the state. Looking at the current demographic situation in the world, the author of the paper focuses on potential consequences of human overpopulation as well as various strategies of preventing the negative consequences of this phenomenon. The conducted analyses show that the reduction of poverty is a morally uncontroversial method of overcoming difficulties related to the growing number of inhabitants of our planet.
Źródło:
Studia Ełckie; 2018, 20, 4; 415-
1896-6896
2353-1274
Pojawia się w:
Studia Ełckie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of infestation with Diplostomum spp. on growth rate of Siberian sturgeon fry, Acipenser baeri Brandt
Autorzy:
Kolman, R.
Kolman, H.
Dzika, E.
Powiązania:
https://bibliotekanauki.pl/articles/840167.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
Siberian sturgeon
growth rate
Acipenser baeri
Diplostomum
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Indebtedness among farmers in Haryana state, India
Zadłużenie wśród rolników w stanie Hariana w Indiach
Autorzy:
Jakhar, B.
Kait, R.
Powiązania:
https://bibliotekanauki.pl/articles/2048609.pdf
Data publikacji:
2021
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
spices
area
production
productivity
compound growth rate
Opis:
Subject and purpose of work: The study aims to evaluate the growth performance of spice crops in Haryana state of India. Materials and methods: The study is based on secondary data obtained over the period of 17 years i.e., from 2001-2002 to 2017-2018. Four spice crop – ginger, turmeric, garlic and fenugreek were selected from rabi and kharif season on the basis of the largest area sown. In order to analyze the data descriptive statistics (mean and C.V.) and CGR (compound growth rate) were employed. Results: The study revealed a significant positive growth rate of 2.20%, 4.50% and 2.20% in the area, production and productivity of ginger in the district of Panchkula, respectively. In the district of Yamunanagar, a growth rate 13.80% and 10.20% was found in the area and production of turmeric. However, a negative productivity growth rate of -3.20% was also revealed. A positive growth rate 1.50%, 3.30% and 0.17% was found in the area, production and productivity of garlic in Karnal district. In the district of Yamunanagar, a growth rate for fenugreek of 7.30% and 7.60% and 13.90% in the area, production and productivity was found. The state of Haryana recorded a significant growth of 1.7%, 2.8% and 1.1% per annum in the area, production and productivity of spice crops respectively. Conclusions: The study revealed a positive growth rate across all the selected spice crops, indicating improving prospects of spice crops in Haryana state.
Źródło:
Economic and Regional Studies; 2021, 14, 3; 346-357
2083-3725
2451-182X
Pojawia się w:
Economic and Regional Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Age and growth rate of Pseudochaenichthys georgianus Norman, 1937 (family Chaenichthyidae) of the South Georgia region
Autorzy:
Chojnacki, Juliusz
Palczewski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2058036.pdf
Data publikacji:
1981
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Pseudochaenichthys georgianus
age
growth rate
South Georgia
Źródło:
Polish Polar Research; 1981, 2, 3-4; 145-157
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of potassium diformate in artificial feed against the growth rate of Nilem fish Osteochilus hasselti (Valenciennes, 1842) seed
Autorzy:
Yustiati, Ayi
Chaerani, Amanda Shafira
Rosidah, Rosidah
Rostini, Iis
Powiązania:
https://bibliotekanauki.pl/articles/1068623.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Growth Rate
Nilem Fish
Osteochilus hasselti
Potassium diformate
Opis:
Nilem fish is an endemic fish in West Java that has the potential to be developed into superior aquaculture products. The effect of feed additives on growth can help in increasing the protein synthesis process so that the fish growth process can be optimal. This research was carried out at the Ciparanje Experimental Pond Hatchery at the Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, from October 1 2018 to November 20 2018. The research method was carried out experimentally with Completely Randomized Design (CRD). This study used four treatments which were repeated three times. The treatment in this study consisted of adding potassium diformate to artificial feed at doses of 0%, 0.1%, 0.3%, and 0.5% per 100 grams of feed. The parameters observed in this study were survival, growth rate, feed efficiency, and water quality. The analysis used was the f test and descriptive analysis. The survival rate, growth rate and feed efficiency range from 87.08% -93.75%, 2.22% -2.26% and 41.21%-47.69% respectively. The addition of potassium diformate to artificial feed up to 0.5% per 100 grams of feed can be used as a feed additive in nilem fish cultivation.
Źródło:
World Scientific News; 2019, 132; 244-255
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exchange rate volatility and trade. The case of Ukraine
Autorzy:
Popova, Olga
Jablinski, Jörg
Lukashenko, T.
Powiązania:
https://bibliotekanauki.pl/articles/692551.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Ekonomiczny w Poznaniu
Tematy:
volatility
trade
exchange rate
transitional economies
international transactions
growth rate
Opis:
This article demonstrates the assumptions of economic theory and its followers, the theories which stimulate research on the positive correlation between the success of the economy, its growth and the level of international trade. The empirical analysis of this paper examines the example of the exchange rate volatility and its influence on international trade on the basis of Ukraine. In the descriptive part of this study, which looks at the exchange rate volatility in Ukraine as a whole, the authors have aggregated the bilateral volatilities using trade shares as weights to obtain what is referred to as the “effective volatility” of the country’s exchange rates. It is summarized that the current situation in Ukraine is extremely difficult, and external financial support could alleviate the crisis. The time span used in the work includes the years from 1999 to 2014, with the help of which the authors have demonstrated the fluctuation and correlation between these two factors. From the graph it has been possible to make the conclusion that even if there was no significant visible correlation between trade and the exchange rate volatility, it does not mean that there is no relationship between these two factors, because there are a lot of factors which affect the level of trade.
Źródło:
Research Papers in Economics and Finance; 2016, 1, 1; 17-24
2543-6430
Pojawia się w:
Research Papers in Economics and Finance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of populations of narrow-clawed crayfish Pontastacus leptodactylus in three Belarusian lakes of the Baltic sea catchment area
Charakterystyka populacji raków wąskopłetwych Pontastacus leptodactylus w trzech białoruskich jeziorach zlewni Morza Bałtyckiego
Autorzy:
Alekhnovich, Anatoli
Powiązania:
https://bibliotekanauki.pl/articles/27322961.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Pomorski w Słupsku
Tematy:
narrow-clawed crayfish
population size
survival rate
population growth rate
Opis:
The population characteristics of narrow-clawed crayfish were studied in three Belarusian lakes of the Baltic Sea catchment area. The life history of crayfish is 7 years. The number of larvae I, produced by all females of the population in late spring – early summer is the highest in eutrophic lake Bobrovichskoe – 26.37 ind./m2, the lowest number of larvae I is in mesotrophic lake Ginkovo – 7.09 ind./m2. The number of individuals that survive the transition period from larvae I to the age of one year is 2.80 ± 0.46%, to sexual maturity at the age of 3 years – 0.73 ± 0.15% of crayfish individuals. In the considered populations, the annual survival rate of sexually mature females in the considered populations is 50.7 ± 1.53%. The average generation time is 4.03 ± 0.13 years.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2021, 25; 19-30
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agricultural land use and population growth in Nigeria. The need for synergy for a sustainable agricultural production
Autorzy:
Akpan, Sunday Brownson
Ebong, Victor O.
Powiązania:
https://bibliotekanauki.pl/articles/1878689.pdf
Data publikacji:
2021-10-02
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
Agricultural land
population growth rate
synergy
sustainability
Nigeria
Opis:
The study examined the relationship between agricultural land use and population growth rates from 1961 to 2018 in Nigeria. Secondary data were obtained from Food and Agricultural Organization and the World Bank. Descriptive statistics, trend equation and correlation analyses were used. Findings revealed that agricultural and arable land utilization grew at the rate of 0.62% and 0.72%, respectively per annum; while the total population growth rate stood at 2.57%. Also, urban and rural population grew at a rate of 4.75% and 1.67% respectively. In addition, the agricultural and arable land utilization rates had significant positive correlations with the total population, urban and rural population. Besides, the findings revealed that, agricultural land (to total land ratio) has continued to increase and currently averaged at 68.78% indicating massive land expansion put under agricultural used. Findings revealed that, most arable crop outputs increase majorly from land expansion rather than land productivity, a situation that cannot assure sustainable agricultural land use food security in a near future. Hence, the country needs agricultural land sparing policies and technologies to slow the current agricultural land expansion drive. Besides, the country’s agricultural land policies should focus on achieving land productivity and sustainable land-sharing strategies among major land users in the country. Again, the rural population growth rate is lower than the urban growth rate, implying that, the rural population is deteriorating with its probable negative effect on farm labour. This needs to be addressed urgently if the sustainable agricultural system is to be achieved in the near future in Nigeria.
Źródło:
Journal of Agribusiness and Rural Development; 2021, 61, 3; 261-270
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prawa własności i tempo ich zmian
Property rights and the pace of their changes
Autorzy:
Staniek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/228010.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
prawo własności
tempo zmian
property rights
growth rate
Opis:
Wiązki praw własności stanowią jedną z podstawowych instytucji formalnych. Ich waga wynika z pełnionych funkcji w gospodarce, zwłaszcza funkcji motywacyjno -bodźcowej. Ekonomiczny charakter praw własności ulega stałym zmianom. Znajduje to wyraz w transferach praw własności zachodzących na rynkach odpowiednio regulowanych przez państwo. Procesy prywatyzacji przebiegają zawsze w konkretnych warunkach gospodarowania, przy odpowiednich proporcjach sektora prywatnego i publicznego. Przy zbyt dużym udziale sektora publicznego istnieje potrzeba transferów praw własności do sektora prywatnego, co dokonuje się w warunkach istnienia rynku prywatyzacyjnego. Rynek ten charakteryzują relacje popytowo-podażowe i kształtowanie cen prywatyzowanego majątku. W praktyce prywatyzacyjnej siły rynkowe ograniczone są działaniami instytucji odpowiedzialnych za prywatyzację (często działających w sposób nieskoordynowany), które kierują się różnego rodzaju interesami. Interes publiczny (interes Skarbu Państwa) rozumiany jako imperium czy dominium wymaga zapewnienia optymalnego tempa zmian praw własności. Tempo to prowadzi do realnych zmian w prywatyzowanych przedsiębiorstwach, do zwiększania ich konkurencyjności i tym samym sprzyjania konkurencyjności całej gospodarki narodowej. W dłuższym czasie wpływa na zwiększenie tempa wzrostu gospodarczego.
Bundles of property rights are one of the basic formal institutions. Their importance results from the function that they play in economy, especially the motivational and incentive function. The economical character of property rights undergoes permanent changes. This is reflected in the transfers of property rights which take place in markets and which are suitably regulated by the State. The processes of privatisation always proceed in specific conditions of management, with appropriate proportions of the private and public sector. With a large share of the public sector there is a need of property rights transfers to the private sector, which takes place in the conditions of the existence of the privatisation market. This market is characerised by supply-demand relations and the price formation of the privatised property. In privatisation practice the market forces are limited by the actions of institutions responsible for privatisation (often acting in an uncoordinated way) which are guided by different types of interests. Public interest (the State Treasury’s interest) understood as empire or dominum requires ensuring an optimal pace of changes of property rights. This pace leads to substantial changes in privatised enterprises, increasing their competetiveness and thereby favouring the competetiveness of the whole national economy. In the long run this influences the growth rate of economic growth.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2016, 1; 156-164
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance test results analysis of crossbred gilts produced in the Bydgoszcz Breeding Region
Analiza wyników testu wydajności loszek mieszańców wyprodukowanych w Bydgoskim Regionie Hodowli
Autorzy:
Michalska, G.
Nowachowicz, J.
Bucek, T.
Wasilewski, P.D.
Kmiecik, M.
Powiązania:
https://bibliotekanauki.pl/articles/961529.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
crossbred gilts
performance test
growth rate
selection index
Opis:
The aim of this study was to analyse the results of performance test of crossbred gilts of Polish Large White and Polish Landrace breed conducted in years 2009–2013 in the Bydgoszcz Breeding Region. They came from two crossing variants (sows breed at first position): [PLW×PL] and [PL×PLW]. Crossbred gilts [PL×PLW] in all analysed years (except for 2001) had higher daily gain of body weight standardised on 180th day than [PLW×PL] animals. From 2009 till 2013 the growth rate of tested crossbred gilts, i.e. [PLW×PL] and [PL×PLW] increased by 10 and 8 g, respectively. Within the span of 5 years (2009–2013) an improvement of breeding value of animals determined as selection index value, which increased by 7 points in [PLW×PL] gilts and by 4 points in [PL×PLW] pigs. This proves the effective improvement of growth and slaughter performance of crossbred gilts coming from the Bydgoszcz Breeding Region within the space of years 2009–2013, being maternal component used in breeding and commercial crossing, which should be monitored in following years.
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2017, 16, 1
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on Pesticides Mixture Degradation by White Rot Fungi
Autorzy:
Gouma, Sofia
Papadaki, Anastasia A.
Markakis, George
Magan, Naresh
Goumas, Dimitris
Powiązania:
https://bibliotekanauki.pl/articles/123993.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biodegradation
fungi
growth rate
pesticides mixture
soil extract
Opis:
The capacity of five white rot fungi species to degrade linuron, metribuzin and chlorpyrifos when applied both as single pesticides and mixed together in different concentrations on nutritionally poor media was investigated. Our results suggested that Pleurotus ostreatus, Pycnoporus coccineus, Phlebiopsis gigatea and Τrametes versicolor showed a remarkable tolerance to the pesticides, in all media tested. The EC50 values presented a noticeable difference in the mixtures as compared with the individual ones. The minimum growth rate in the mixture was obtained by P. ostreatus whereas P. coccineus appeared to be more efficient than the rest fungal isolates, when cultivated in the soil extract medium. P. coccineus, P. gigantea and T. versicolor produce high levels of polyphenol oxidase, but only T. versicolor was capable of decomposing linuron when combined with metribuzin and chlorpyrifos.
Źródło:
Journal of Ecological Engineering; 2019, 20, 2; 16-26
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Growth Rate of Water Hyacinth (Eichhornia crassipes (Mart.) Solms) in Rawapening Lake, Central Java
Autorzy:
Prasetyo, Syarif
Anggoro, Sutrisno
Soeprobowati, Tri Retnaningsih
Powiązania:
https://bibliotekanauki.pl/articles/1838296.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Rawapening
Eichhornia crassipes
mesocosm
relative growth rate
doubling time
Opis:
Rawapening Lake is one of Indonesia’s national priority lakes that is experiencing environmental problems which are urgently required to be solved due to its functions. The decline in the environmental quality of Rawapening Lake includes sedimentation, water pollution and excess of nutrients, especially Phosphorus (P) and Nitrogen (N) into the lake that induced uncontrolled growth of aquatic plants, one of which is water hyacinth (Eichhornia crassipes (Mart.) Solms). Many activities had been done to reduce the covering of water hyacinth in Rawapening Lake that tends to increase by the time, but no significant result has been achieved. Therefore, this research was conducted in order to study the growth rate of water hyacinth with mesocosm in Rawapening Lake as a baseline to develop suitable management. There were three different sites, namely: Site I in the floating net cage area (FNCA), Rowoboni Village, Site II in the natural area of Bejalen Village which is far from the aquaculture sites, and Site III in the upper reaches of the Tuntang river, Asinan Village. The research was performed in November-December 2019 with the measurements of growth rate, addition number clump and water hyacinth covering every week. The experiment was conducted in the 1 x 1 meter mesocosm, with three replication in every site. In every mesocosm water hyacinth with similar initial weight of 160 grams and number of leaves 6-7 strands were grown in the mesocosm. On day 7 (H7) the average wet weight of water hyacinth increased by 201%. In the fourth week (H28) the average wet weight of water hyacinth increased by 788% compared to the initial weight when planted. The highest relative growth rate (RGR) value of water hyacinth was at site III (7.26%/ day), followed by Site I (7.03%/day), and Site II (6.40%/day), respectively. The doubling time (DT) value of water hyacinth at the site I was 9.9 day, site II – 10.8 day, and site III – 9.6 day. One clump of water hyacinth weighing 160 grams was able to cover 1 m2 of mesocosm within 21 days. On the basis of these results, to manage water hyacinth blooms one has to consider its growth rate.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 222-231
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Growth Rate of Water Hyacinth (Eichhornia crassipes (Mart.) Solms) in Rawapening Lake, Central Java
Autorzy:
Prasetyo, Syarif
Anggoro, Sutrisno
Soeprobowati, Tri Retnaningsih
Powiązania:
https://bibliotekanauki.pl/articles/1838362.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Rawapening
Eichhornia crassipes
mesocosm
relative growth rate
doubling time
Opis:
Rawapening Lake is one of Indonesia’s national priority lakes that is experiencing environmental problems which are urgently required to be solved due to its functions. The decline in the environmental quality of Rawapening Lake includes sedimentation, water pollution and excess of nutrients, especially Phosphorus (P) and Nitrogen (N) into the lake that induced uncontrolled growth of aquatic plants, one of which is water hyacinth (Eichhornia crassipes (Mart.) Solms). Many activities had been done to reduce the covering of water hyacinth in Rawapening Lake that tends to increase by the time, but no significant result has been achieved. Therefore, this research was conducted in order to study the growth rate of water hyacinth with mesocosm in Rawapening Lake as a baseline to develop suitable management. There were three different sites, namely: Site I in the floating net cage area (FNCA), Rowoboni Village, Site II in the natural area of Bejalen Village which is far from the aquaculture sites, and Site III in the upper reaches of the Tuntang river, Asinan Village. The research was performed in November-December 2019 with the measurements of growth rate, addition number clump and water hyacinth covering every week. The experiment was conducted in the 1 x 1 meter mesocosm, with three replication in every site. In every mesocosm water hyacinth with similar initial weight of 160 grams and number of leaves 6-7 strands were grown in the mesocosm. On day 7 (H7) the average wet weight of water hyacinth increased by 201%. In the fourth week (H28) the average wet weight of water hyacinth increased by 788% compared to the initial weight when planted. The highest relative growth rate (RGR) value of water hyacinth was at site III (7.26%/ day), followed by Site I (7.03%/day), and Site II (6.40%/day), respectively. The doubling time (DT) value of water hyacinth at the site I was 9.9 day, site II – 10.8 day, and site III – 9.6 day. One clump of water hyacinth weighing 160 grams was able to cover 1 m2 of mesocosm within 21 days. On the basis of these results, to manage water hyacinth blooms one has to consider its growth rate.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 222-231
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Continuous Growth of Bulk Si by Temperature Gradient Zone Melting Method
Autorzy:
Li, Jiayan
Wang, Liang
Hao, Jianjie
Ni, Ping
Tan, Yi
Powiązania:
https://bibliotekanauki.pl/articles/356541.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bulk Si
TGZM
Si-Al alloy
growth rate
impurities
Opis:
Temperature gradient zone melting (TGZM) method was used to obtain bulk Si continuously for the efficient separation and purification of primary Si from the Si-Al alloy in this work. The effects of alloy thickness, temperature gradient and holding time in TGZM purification technology were investigated. Finally, the continuous growth of bulk Si without eutectic inclusions was obtained. The results showed that the growth rate of bulk Si was independent of the liquid zone thickness. When the temperature gradient was changed from 2.48 K/mm to 3.97 K/mm, the growth rate of bulk Si was enhanced from 7.9×10-5 mm/s to 2.47×10-4 mm/s, which was increased by about 3 times. The bulk Si could grow continuously and the growth rate was decreased with the increase of holding time from 1 h to 5 h. Meanwhile, low refining temperature was beneficial to the removal of impurities. With a precipitation temperature of 1460 K and a temperature gradient of 2.48 K/mm, the removal rates of Fe, P and B were 99.8%, 94.0% and 63.6%, respectively.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 271-278
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 155

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