Autor: Aravindhan, Surendar - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fabrication of a high wear resistance AA7075/AL2O3 composites via liquid metallurgy process
Autorzy:: Sivaraman, R.
Jalil, Abduladheem Turki
Aravindhan, Surendar
Nan, Zhao
Vini, M. Heydari
Daneshmand, S.
Powiązania:: https://bibliotekanauki.pl/articles/27312401.pdf
Data publikacji:: 2022
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: zużycie
kompozyty
odlewanie
AA7075
Al2O3
wear
composites
stir casting
Opis:: In the present study, AA7075/Al2O3 composites have been fabricated via liquid metallurgy process. AA7075 alloy and Al2O3 particles were taken as the base matrix and reinforcements, respectively. Then, contents of 3 and 6 wt. % of Al2O3 subdivisions were added into the AA7075 matrix. To improve wettability and distribution, reinforcement particles were pre-heated to a temperature of 550°C for each composite sample. A hardened EN32 steel disc as the counter face was used to evaluate the wear rate pin-on-disc. The results showed that the wear rate of the AA/Al2O3 composites was smaller than that of the monolithic AA7075 samples. Finally, the worn surfaces of samples were investigated by SEM.
Źródło:: International Journal of Applied Mechanics and Engineering; 2022, 27, 4; 205--210
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Study of dam sediment distribution using experimental area-reduction method Case study: Karun Dam
Autorzy:: Yusuf, Rakhmat
Komariah, Aan
Kurniady, Dedy Achmad
Mardiani, Mardiani
Jumintono, Jumintono
Falih, Khaldoon T.
Kabanov, Oleg V.
Aravindhan, Surendar
Kadhim, Mustafa Mohammed
Powiązania:: https://bibliotekanauki.pl/articles/2174333.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: area-reduction method
dam reservoir
distribution of sediment
elevation-area curve
elevation-volume curve
Opis:: Dam construction is one of the measures that is inevitable in many cases and must be done to supply drinking water, agricultural uses and electricity generation. There are many challenges to a successful dam project, and the managers of each project must consider the appropriate solutions for them. One of the studies that is done in dam design is sedimentation in dam reservoirs. The experimental area-reduction method is a very common technique that obtains the sediment distribution in depth and longitudinal profile. This technique shows that sediment accumulation is not limited to the bottom reservoirs. Sediment accumulation in a reservoir is usually distributed below the top of the protection reservoir or normal water level. In this study, the distribution of sediment in the reservoir of Karun Dam after a period of 65 years has been done using the experimental area-reduction method. Elevation-volume and elevation-area curves of the dam reservoir are obtained after the useful life of the dam and sediment deposition. The results showed that after 65 years, 106.47·106 m3 of sediment is deposited in the reservoir of the dam and the useful volume of the reservoir is significantly reduced. Also, up to a height of 36.4 m, the dam reservoir is filled with sediment. Therefore, no valve should be placed up to this height.
Źródło:: Journal of Water and Land Development; 2022, 54; 116--120
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Plant secondary metabolites as defenses: A review
Autorzy:: Jusuf, Herlina
Elveny, Marischa
Azizova, Feruza
Shichiyakh, Rustem A.
Kulikov, Dmitriy
Al-Taee, Muataz M.
Atiyah, Karrar K.
Jalil, Abduladheem T.
Aravindhan, Surendar
Powiązania:: https://bibliotekanauki.pl/articles/2174280.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: alkaloids
flavonoids
phenolics
plant pathogens
secondary metabolites
Opis:: Plant secondary metabolites have a variety of functions, including mediating relationships between organisms, responding to environmental challenges, and protecting plants against infections, pests, and herbivores. In a similar way, through controlling plant metabolism, plant microbiomes take part in many of the aforementioned processes indirectly or directly. Researchers have discovered that plants may affect their microbiome by secreting a variety of metabolites, and that the microbiome could likewise affect the metabolome of the host plant. Pesticides are agrochemicals that are employed to safeguard humans and plants from numerous illnesses in urban green zones, public health initiatives, and agricultural fields. The careless use of chemical pesticides is destroying our ecology. As a result, it is necessary to investigate environmentally benign alternatives to pathogen management, such as plant-based metabolites. According to literature, plant metabolites have been shown to have the ability to battle plant pathogens. Phenolics, flavonoids, and alkaloids are a few of the secondary metabolites of plants that have been covered in this study.
Źródło:: Journal of Water and Land Development; 2022, 55; 206--211
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of global warming on insect behaviour in agriculture
Autorzy:: Ahmed, Alim Al Ayub
Zahar, Marziah
Gribkova, Vera
Nikolaeva, Natalia
Dwijendra, Ngakan Ketut Acwin
Suksatan, Wanich
Atiyah, Karrar Kamil
Jalil, Abduladheem Turki
Aravindhan, Surendar
Powiązania:: https://bibliotekanauki.pl/articles/2174340.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: agriculture
climate change
food security
global warming
insect pest
Opis:: Global warming and climate change are some of the most widely discussed topics in today's society, and they are of considerable importance to agriculture globally. Climate change directly affects agricultural production. On the other hand, the agricultural sector is inherently sensitive to climate conditions, and this has made the agricultural sector one of the most vulnerable sectors to the effects of global climate change. Rising CO2 levels in the atmosphere, increased temperature, and altering precipitation patterns all substantially influence agricultural insect pests and agricultural productivity. Climate change has a number of implications for insect pests. They can lead to a decreased biological control effectiveness, particularly natural enemies, increased incidence of insect-transmitted plant diseases, increased risk of migratory pest invasion, altered interspecific interaction, altered synchrony between plants and pests, increase in the number of generations, increased overwintering survival, and increase in geographic distribution. As a consequence, agricultural economic losses are a real possibility, as is a threat to human food and nutrition security. Global warming will necessitate sustainable management techniques to cope with the altering state of pests, as it is a primary driver of pest population dynamics. Future studies on the impacts of climate change on agricultural insect pests might be prioritized in several ways. Enhanced integrated pest control strategies, the use of modelling prediction tools, and climate and pest population monitoring are only a few examples.
Źródło:: Journal of Water and Land Development; 2022, 54; 150--153
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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