A study of areca nut leaf sheath fibers as a green sound-absorbing material

2020 ◽  
Vol 169 ◽  
pp. 107490
Author(s):  
Manish Raj ◽  
Shahab Fatima ◽  
Naresh Tandon
Plant Disease ◽  
2020 ◽  
Vol 104 (11) ◽  
pp. 3070
Author(s):  
Deeba Kamil ◽  
Amar Bahadur ◽  
Prasenjit Debnath ◽  
Anjali Kumari ◽  
Shiv Pratap Choudhary ◽  
...  

2018 ◽  
Vol 5 (11) ◽  
pp. 24541-24547
Author(s):  
R. Nikhil ◽  
N. Raahul ◽  
N. Sateesh ◽  
M. Shivpriyan ◽  
Tiffany Clein ◽  
...  

Author(s):  
Kiran Poudel

Abstract: This paper describes the techniques for design and development of areca-nut leaf plate making machine which uses manual power (foot operated) as the main power source. The primary purpose of this research is the utilization of generally wasted areca-nut leaf sheath for the production of bio-degradable areca-nut leaf plates by the development of machine, which can be operated easily at home. This machine mainly uses mild steel for the development of the parts such as lower and upper die, frame, pedal, connecting links and shafts. The force applied at the pedal is transferred to moving upper die, which then presses the areca-nut leaf sheath placed above the fixed lower die, resulting areca-nut leaf sheath plates within 15 seconds of pressing. Keywords: Areca-nut leaf, Bio degradable, Foot operated


2020 ◽  
Vol 8 (2) ◽  
pp. 13
Author(s):  
Ankita Pandey

Guwahati derives its name from the Assamese word “Guwa” means areca nut and “Haat” means market. However, the modern Guwahati had been known as the ancient Pragjyotishpura and was the capital of Assam under the Kamrupa kingdom. A beautiful city Guwahati is situated on the south bank of the river Bramhaputra. Moreover, It is known as the largest city in the Indian state of Assam and also the largest metropolis in North East India. It has also its importance as the gateway to the North- East India. Assamese and English are the spoken languages in Guwahati.  In 1667, the Mogul forces were defeated in the battle by the Ahom forces commanded by Lachut Barphukan. Thus, in a sense Guwahati became the bone of contention among the Ahoms, Kochas and the Moguls during the medieval period.  Guwahati the administrative headquarters of Lower Assam with a viceroy or Barbhukan was made by the Ahom king.  Since 1972 it has been the capital of Assam. The present paper will discuss the changes happened in Guwahati over the period of late 1970s till the present time. It will focus on the behavior of people, transformed temples, Panbazar of the city, river bank of Bramhaputra, old Fancy Bazaar, chaotic ways, festivals and seasons including a fifth man made season etc. It will also deal how over the years a city endowed with nature’s gifts and scenic views, has been changing as “a dirty city”. Furthermore, it will also present the insurgencies that have barged into the city. The occurrence of changes will be discussed through the perspective and point of view of Srutimala Duara as presented in her book Mindprints of Guwahati.


2019 ◽  
pp. 1-3
Author(s):  
Madhuri B ◽  
Narasimha G ◽  
Balaji M*

Areca palm (ChrysalidoCarpus lutescenes) a widely used plant having feathery arching brands with 100 leaflets. All these plants produce much of waste in additions to greeny and nuts. This waste of spade is used for the production of various molecules that are used in industry and pharma sector. Fermentation techniques are used to generate economically important enzymes for industrial and pharmaceutical purposes. Cellulase enzyme degrades the cellulose in between β-1, 4 glucosidic link found in lignocellulosic complex which under physical treatment is slower to degrade. The present study of Aspergillus niger for cellulose production was carried in solid state (SS) and submerged (SM) fermentations for production of cellulase enzyme. Cellulase production in SSF after 72 h of fermentation was 8.02 and in SMF activity was 2.98 per ml of cultured broth at H 6 and temperature at 30°C. Both SMF and SSF were supplemented with lactose and lactobionic acid, which acted as cellulase P production inducers. The aim of the present work was to study the effect of Areca palm spade as substrate for Aspergillus niger and its cellulase production under SMF and SSF.


Photonics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 114
Author(s):  
Steve Kamau ◽  
Safaa Hassan ◽  
Khadijah Alnasser ◽  
Hualiang Zhang ◽  
Jingbiao Cui ◽  
...  

It is challenging to realize the complete broadband absorption of near-infrared in thin optical devices. In this paper, we studied high light absorption in two devices: a stack of Au-pattern/insulator/Au-film and a stack of Au-pattern/weakly-absorbing-material/Au-film where the Au-pattern was structured in graded photonic super-crystal. We observed multiple-band absorption, including one near 1500 nm, in a stack of Au-pattern/spacer/Au-film. The multiple-band absorption is due to the gap surface plasmon polariton when the spacer thickness is less than 30 nm. Broadband absorption appears in the near-infrared when the insulator spacer is replaced by a weakly absorbing material. E-field intensity was simulated and confirmed the formation of gap surface plasmon polaritons and their coupling with Fabry–Pérot resonance.


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