scholarly journals Surge of the Innovative Quest in the first lockdown period due to the Pandemic Effect

2021 ◽  
Vol 9 (4) ◽  
pp. 34-43
Author(s):  
Ishita Ghosh
Keyword(s):  
Review Paper ◽  
Low Cost ◽  
Cost Effective ◽  
Physical Contact ◽  
Effective Vaccine ◽  
Successful Implementation ◽  
Human Beings ◽  
To Come ◽  
The One ◽  
Effective Drugs

When the entire world is reeling under the COVID 19 pandemic effect and the tensed human race is struggling to return back to the normalcy of life, the one thing which has become very active is the grey cells of our brain. The pandemic effect has cut down our physical limits due to the movement constraints. But it is thankfully unable to restrict the ticking of the grey cells of the human brain. As is said, “Necessity is the mother of the invention”. Sure enough!! We can be extremely pleased to know that the innovative surge in science and technology continues unabated in this lockdown period. The prime requirement of the pandemic effect is social distancing, less physical contact and keeping ourselves away from infection by corona virus. Keeping this necessity in mind, the doctors, the engineers, the researchers as well as the students’ community are keeping themselves busy in pumping out the solutions to the currently faced problems. The outputs include automatic masks machines, low cost PPE’s, automatic wash basins, suitable ventilators, sanitizer tunnels etc. This review paper looks into the innovative surge already made and what more can be churned out for the effective social safety in this tensed pandemic effect. The most awaited news as of now is the successful implementation of an effective vaccine and cost effective drugs which can help the human beings breathe easy. The pandemic effect has also showed us the way for a cleaner and greener nature. It is now a challenge to the intellectual world to come up with inexpensive, innovative and smart solutions which will make our beautiful planet safer, greener, cleaner and worthier to live in.

Otta Seals and Gravseals as Low-Cost Surfacing Alternatives for Low-Volume Roads: Experiences in South Africa

2003 ◽  
Vol 1819 (1) ◽  
pp. 338-342 ◽  
Author(s):  
Simon Oloo ◽  
Rob Lindsay ◽  
Sam Mothilal
Keyword(s):  
South Africa ◽  
Low Cost ◽  
Cost Savings ◽  
Cost Effective ◽  
Field Trials ◽  
Low Volume Roads ◽  
Kwazulu Natal ◽  
Traffic Volumes ◽  
Low Volume ◽  
To Come

The geology of the northeastern part of the province of KwaZulu–Natal, South Africa, is predominantly alluvial with vast deposits of sands. Suitable gravel sources are hard to come by, which results in high graveling and regraveling costs brought about by long haul distances and accelerated gravel loss. Most gravel roads carry fewer than 500 vehicles per day of which less than 10% are heavy vehicles. The high cost of regraveling has led to consideration of upgrading such roads to surfaced standard, even though traffic volumes do not justify upgrading. Traditional chip seals are expensive and cannot be economically justified on roads that carry fewer than 500 vehicles per day. The KwaZulu–Natal Department of Transport is actively involved in efforts to identify cost-effective alternative surfacing products for low-volume roads. Field trials were conducted with Otta seals and Gravseals, which have been used successfully in other countries, as low-cost surfacing products for low-volume roads. The Otta seal is formed by placing graded aggregates on a relatively thick film of soft binder that, because of traffic and rolling, works its way through the aggregates. Gravseal consists of a special semipriming rubberized binder that is covered by a graded aggregate. Both Otta seals and Gravseals provide relatively flexible bituminous surfaces suitable for low-volume roads. Cost savings are derived mainly from the broad aggregate specifications, which allow for the use of marginal materials.

Application of Epoxy Resin for Improvement of the Banana Stem-Acoustic Panel

2021 ◽  
Vol 15 ◽  
Author(s):  
Mohd Azril Riduan ◽  
Mohd Jumain Jalil ◽  
Intan Suhada Azmi ◽  
Afifudin Habulat ◽  
Danial Nuruddin Azlan Raofuddin ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Kinetic Modelling ◽  
Low Cost ◽  
Cost Effective ◽  
Performic Acid ◽  
High Yield ◽  
Renewable Materials ◽  
Runge Kutta Method ◽  
To Come

Background: Greener epoxidation by using vegetable oil to create an eco-friendly epoxide is being studied because it is a more cost-effective and environmentally friendly commodity that is safer than non-renewable materials. The aim of this research is to come up with low-cost solutions for banana trunk acoustic panels with kinetic modelling of epoxy-based palm oil. Method: In this study, the epoxidation of palm oleic acid was carried out by in situ performic acid to produce epoxidized palm oleic acid. Results: Banana trunk acoustic panel was successfully innovated based on the performance when the epoxy was applied. Lastly, a mathematical model was developed by using the numerical integration of the 4th order Runge-Kutta method, and the results showed that there is a good agreement between the simulation and experimental data, which validates the kinetic model. Conclusion: Overall, the peracid mechanism was effective in producing a high yield of epoxy from palm oleic acid that is useful for the improvement of acoustic panels based on the banana trunk.

Filosofia, politica e società ai tempi della pandemia. Agamben e la «paranoia della ragione»

2021 ◽  
Vol 77 (2-3) ◽  
pp. 617-642
Author(s):  
Antonio Di Chiro
Keyword(s):  
Social Life ◽  
The Other ◽  
State Of Exception ◽  
Human Beings ◽  
Giorgio Agamben ◽  
Other Hand ◽  
Intimate Relations ◽  
To Come ◽  
The One

In this essay we will try to analyze the thought of the philosopher Giorgio Agamben on the pandemic. The aim of the work is twofold. On the one hand, we will try to demonstrate that Agamben’s positions on the pandemic are not to be understood as mere extemporaneous statements, but as integral parts of his philosophy. On the other hand, we will try to show how these positions are based on a deeply paranoid and anti-scientific vision, since Agamben believes that the effects of the epidemic have been exaggerated by the centers of power in order to create a “state of exception” that allows to crumble social life and to use the fear of poverty as a tool to dominate society. We will try to demonstrate that it is precisely starting from the critique of Agamben’s positions that it is possible to rethink a philosophy and a politic to come and a new reorganization of social and intimate relations between human beings.

scholarly journals Using Google Earth™ and Geographical Information System data as method to delineate sample domains for an urban household surveys: the case of Maroua (Far North Region-Cameroon)

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Ronald R. B. Ngom Vougat ◽  
Steven Chouto ◽  
Sylvain Aoudou Doua ◽  
Rebecca Garabed ◽  
André Zoli Pagnah ◽  
...  
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Google Earth ◽  
Geographical Information ◽  
Gps Tracking ◽  
Low Incomes ◽  
Global Positioning ◽  
System Data ◽  
The One ◽  
Time Required

Abstract Background Getting a random household sample during a survey can be expensive and very difficult especially in urban area and non-specialist. This study aimed to test an alternative method using freely available aerial imagery. Methods A gridded map and random selection method was used to select households for interviews. A hundred numbered of points were put along the edges of an updated map of Maroua. Then two numbers were randomly draw at a time and a line was drawn between those two numbers. A lot of different kinds of shapes of different sizes obtained were numbered. Ten shapes were randomly draw and the one selected were considered as ‘neighbourhoods’. A grid of 30 m × 30 m was drawn over each and then numbered. 202 grids considered here as households were randomly selected from the ten neighbourhoods for interviews. Results Out of 202 households visited, only 4 were found to be something other than a house. In addition, 30 sampled households (14.85%) were abandoned or the occupants had relocated elsewhere. This method resulted in an accuracy level of 72%, its advantage is the ability to generate efficient random sample at relatively low cost as well the time required. Conclusions The method proposed in this study was efficient and cost-effective when compared to the infield generation of a household inventory or Global Positioning System (GPS) tracking of households. It can then be used by researchers in low-incomes countries where funding for research is a challenge. However, this method needs to train the investigators on how to use the GPS.

scholarly journals Desarda Versus Lichtenstein Repair for Primary Inguinal Hernia in Men: Results of A Randomized Control Trial

2020 ◽  
Vol 14 (1) ◽  
pp. 20-26
Author(s):  
ASM Tanjilur Rahman ◽  
Swapan Kumar Biswas ◽  
Ratan Kumar Saha ◽  
ASM Zahidur Rahman ◽  
Tanvir Ahmed ◽  
...  
Keyword(s):  
Inguinal Hernia ◽  
Low Cost ◽  
Cost Effective ◽  
Lichtenstein Repair ◽  
Primary Inguinal Hernia ◽  
Body Sensation ◽  
Mesh Hernia Repair ◽  
Male Patients ◽  
The One

Inguinal hernia is a very common surgical problem for which mesh based technique particularly Lichtenstein repair is considered as standard. However, it is not free from some major and bothersome complications. Desarda technique of non-mesh hernia repair invented by the Indian surgeon is claimed as low cost tension free procedure with promising results. The objective of the study is to evaluate the feasibility of Desarda procedure in country like Bangladesh as a treatment of primary inguinal hernia in men by comparing with Lichtenstein repair in terms of various parameters. One hundred and sixty male patients between ages of 18-70 years with uncomplicated primary inguinal hernia were initially randomized to perform the one of the two procedures in every alternate patient. Outcome were measured and analyzed. A total of 100 patients were finally studied with a follow up of 2 years. Operative time and immediate postoperative pain were significantly less in Desarda arm. Cost and foreign body sensation were also in favour of Desarda group. There was no recurrence in either group. Desarda repair is easy to perform and takes less time. It is cost effective with a comparable clinical outcome to standard Lichtenstein repair at least in short term. Faridpur Med. Coll. J. Jan 2019;14(1): 20-26

A Green Alternative for Aryl Iodide Preparation from Aromatic Amines

2020 ◽  
Vol 17 (2) ◽  
pp. 131-135
Author(s):  
Zohreh Shahnavaz ◽  
Lia Zaharani ◽  
Mohd Rafie Johan ◽  
Nader Ghaffari Khaligh
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Raw Material ◽  
Diazonium Salts ◽  
Separation And Purification ◽  
One Pot ◽  
Aryl Iodide ◽  
Aryl Iodides ◽  
The One

Background: In continuation of our previous work and the applications of saccharin, we encouraged to investigate the one-pot synthesis of the aryl iodides by the diazotization of the arene diazonium saccharin salts. Objective: Arene diazonium salts play an important role in organic synthesis as intermediate and a wide variety of aromatic compounds have been prepared using them. A serious drawback of arene diazonium salts is their instability in a dry state; therefore, they must be stored and handled carefully to avoid spontaneous explosion and other hazard events. Methods: The arene diazonium saccharin salts were prepared as active intermediates in situ through the reaction of various aryl amines with tert-butyl nitrite (TBN) in the presence of saccharin (Sac–H). Then, in situ obtained intermediates were used into the diazotization step without separation and purification in the current protocol. Results: A variety of aryl iodides were synthesized at a greener and low-cost method in the presence of TBN, Sac–H, glacial acetic acid, and TEAI. Conclusion: In summary, a telescopic reaction is developed for the synthesis of aryl iodides. The current methodology is safe, cost-effective, broad substrate scope, and metal-free. All used reagents are commercially available and inert to moisture and air. Also, the saccharine and tetraethylammonium cation could be partially recovered from the reaction residue, which reduces waste generation, energy consumption, raw material, and waste disposal costs.

scholarly journals Wêreld- en tydsbeskouing in antieke kulture

2003 ◽  
Vol 59 (4) ◽  
Author(s):  
Marius Nel
Keyword(s):  
Near East ◽  
Ancient Near East ◽  
Human Beings ◽  
World Views ◽  
The World ◽  
To Come ◽  
The One

View of the world and time in ancient culturesThree important cultures that dominated the Ancient Near East in the three millennia BCE are investigated to delineate their world views, as well as their views of time and eternity. The aim of the article is to describe the view of the world and time in ancient cultures. The Egyptian, Mesopotamian and Vedic Indian cultures and theologies largely have the same view of the world, namely that it is an ordered unity that would keep on existing as it is known for all ages and time to come. Among these cultures there is no expectation of a world that would be made perfect, or become immutable in its perfection. They did not fantasize about a world without chaos. Chaos is the one factor that exists through all ages alongside order. Chaos is known to human beings in their daily existence in the form of warfare, drought and floods, with resultant famine. These conditions were typical of those times in areas where, with the exception of the fertile valleys alongside rivers, desert conditions otherwise prevailed and are interpreted theologically in terms of a combat between order and chaos, or between gods and demons.

scholarly journals Removal of Copper from Water Solutions by Adsorption on Spruce Sawdust

Proceedings ◽  
2019 ◽  
Vol 16 (1) ◽  
pp. 52 ◽  
Author(s):  
Zdenka Kovacova ◽  
Stefan Demcak ◽  
Magdalena Balintova
Keyword(s):  
Wastewater Treatment ◽  
Low Cost ◽  
Cost Effective ◽  
Peat Moss ◽  
Human Beings ◽  
Cost Effective Method ◽  
Negative Impacts ◽  
Major Factors ◽  
Scientific Attention

Pollution of water by toxic elements is one of the major factors of concern for human health, as well as for environmental quality, and draws a large amount of scientific attention. New and cheaper methods of wastewater treatment are increasing the quality of the environment and reducing the negative impacts on fauna, flora, and human beings. The sorption technique is considered a cost effective method for effectively removing heavy metals. During the past few years, there have been increasing studies dedicated to using low-cost adsorbents like bark, tannin-rich materials, lignin, chitosan peat moss, and sawdust. The presented paper describes the adsorption behavior of spruce wood sawdust. In order to determine its applicability for wastewater treatment, copper removal from model solutions was studied.

scholarly journals Synaptic and Fast Switching Memristance in Porous Silicon-Based Structures

Nanomaterials ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 825 ◽  
Author(s):  
Vicente Torres-Costa ◽  
Ermei Mäkilä ◽  
Sari Granroth ◽  
Edwin Kukk ◽  
Jarno Salonen
Keyword(s):  
Porous Silicon ◽  
Low Cost ◽  
Electrical Characterization ◽  
Cost Effective ◽  
Successful Implementation ◽  
Memristive Behavior ◽  
Silicon Structures ◽  
Proper Material ◽  
Silicon Based ◽  
New Generation

Memristors are two terminal electronic components whose conductance depends on the amount of charge that has flown across them over time. This dependence can be gradual, such as in synaptic memristors, or abrupt, as in resistive switching memristors. Either of these memory effects are very promising for the development of a whole new generation of electronic devices. For the successful implementation of practical memristors, however, the development of low cost industry compatible memristive materials is required. Here the memristive properties of differently processed porous silicon structures are presented, which are suitable for different applications. Electrical characterization and SPICE simulations show that laser-carbonized porous silicon shows a strong synaptic memristive behavior influenced by defect diffusion, while wet-oxidized porous silicon has strong resistance switching properties, with switching ratios over 8000. Results show that practical memristors of either type can be achieved with porous silicon whose memristive properties can be adjusted by the proper material processing. Thus, porous silicon may play an important role for the successful realization of practical memristorics with cost-effective materials and processes.

Advances in Liquid Encapsulated Chip-on-Board / MCM-L Technology

1995 ◽  
Vol 390 ◽  
Author(s):  
Dale L. Robinson ◽  
David B. Clegg
Keyword(s):  
Paradigm Shift ◽  
High Reliability ◽  
Low Cost ◽  
Cost Effective ◽  
Electronics Packaging ◽  
Multichip Module ◽  
Successful Implementation ◽  
Recent Advances ◽  
History Of ◽  
Reliability Performance

ABSTRACTChip-on-Board technology (COB), or the currently more often used MCM-L acronym (MultiChip Module - Laminate), has long been touted as the low cost, high density electronics packaging choice of the future. Unfortunately, poor reliability performance in comparison to traditional plastic packaging, has been a trademark of COB/MCM-L. Recent advances in processes and materials for COB/MCM-L are providing a paradigm shift in reliability, and providing cost effective high reliability packaging solutions for COB/MCM-L. This paper examines the history of recent advances in liquid encapsulated COB/MCM-L and provides guidelines for selecting appropriate materials and processes for their successful implementation into cost effective manufacturing.

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