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Friday, May 5, 2023
பெண் பாலியல் விருப்பமும் விடுதலையும்-லூச் இரிகரை (LUCE IRIGARAY)
Wednesday, May 3, 2023
The steps to use paddy husk gasification for Rural Electrification
The energy cost now strongly depends on the prices of
fossil fuels due to the world's intense fuel dependence on energy production.
This is causing pain in most of the world's nations, and Sri Lanka is no
different. From this perspective, the promotion of biomass as a source of
renewable energy is significant to the country. Given that rice is the nation's
leading food and the crop with the most considerable area under cultivation, it has been
discovered that the rice husk (RH) produced during paddy processing has a
significant potential for producing electricity.
Paddy husk gasification is a process that can be used to generate electricity from agricultural waste, specifically the husks of rice. The process involves heating the husks in a gasifier, which breaks down the biomass into a gas that can power an engine or a turbine to generate electricity.
The Husk Power Systems (HPS) and Decentralized Energy
Systems India (DESI), two businesses that have successfully offered power
access utilizing this resource, have popularized rice husk-based electricity
generation and supply throughout South Asia. To examine the factors
that make a small-scale rural power supply company profitable and determine
whether a collection of villages can be electrified using a larger facility.
Using a financial analysis of alternative supply alternatives that consider the
residential and commercial electricity demands under various scenarios, Serving
just consumers with low electricity usage results in the electricity-producing
facility only being used to part of its capacity, which raises the cost of supply.
Increased electricity use improves financial viability and considerably helps
high-consumption clients. The feasibility and levelized cost of the collection
are enhanced by integrating rice mill demand, especially during the off-peak
period, with a predominant residential peak demand system. Finally, larger
plants significantly reduce costs to provide a competitive supply. However, the
more critical investment requirement, risks associated with the rice mill's
monopoly supply of husk, organizational challenges related to managing a more
extensive distribution area, and the possibility of plant failure could
negatively impact investor interest.
Here are the steps to use paddy husk gasification for rural
electrification:
Assess the availability of paddy husk: The first step is to
determine the amount of paddy husk available in the rural area. This will help
to determine the size of the gasification system that will be needed.
Choose the gasification system: There are different types of gasification systems available, including fixed beds, fluidized beds, and entrained flow gasifiers. The choice of the gasification system will depend on the amount of paddy husk available and the amount of electricity that needs to be generated.
Install the gasification system: Once chosen, it must be installed in the rural area. The design should be located close to the source of the paddy husk to minimize transportation costs.
Operate the gasification system: It must be operated properly to ensure electricity is generated efficiently. This involves feeding the paddy husk into the gasifier and maintaining the appropriate temperature and pressure.
Distribute the electricity: The generated electricity can be distributed to the surrounding rural area using a grid or a microgrid. The distribution system should be designed to meet the needs of the rural community.
Monitor and maintain the system: It is essential to monitor the gasification system to ensure that it operates efficiently and to perform regular maintenance to prevent breakdowns and ensure a long lifespan.
In summary, paddy husk gasification can be a sustainable
solution for rural electrification.
Saturday, April 29, 2023
வாழ்வின் வடிவமும் அரசியலும்-அகம்பென்
வாழ்வின் வடிவம் குறித்து கிரேக்கத்தில் இரு சொற்களில் விளக்கப்படுகிறது. ஒன்று எல்லா உயிரிகளின் நடைமுறை வாழ்தலைக் குறிப்பது. மற்றொன்று ஒரு குறிப்பிட்ட உயிரி அல்லது குழுவைச் சார்ந்தவர்களின் வாழ்தலைக் குறிப்பது. வாழ்வின் வடிவம் என அகம்பென் குறிப்பது வாழ்விலிருந்து எப்போதும் அதன் வடிவத்தைப் பிரிக்கவே முடியாது என்ற பொருளில் ஆகும்.
Thanks Mubeen Sadhika
Friday, April 28, 2023
வரலாற்றுக்கு முந்திய கால திருகோணமலை.
Balasingam Sugumar
Thursday, March 30, 2023
What is Plant-e
In Plant-e's technology, electrodes are placed in the soil near the roots of the plants, and the bacteria living in the soil around the roots consume the organic matter and produce electrons, which can then be captured and used to generate electricity. The technology has potential applications in renewable energy, agriculture, and environmental monitoring.
While the technology is still in its early stages of development, it has shown promise as a sustainable and environmentally-friendly alternative to traditional forms of energy generation.
Wednesday, March 22, 2023
மதமும் உண்மையும்-ஜிஜெக்கின் விளக்கம்
Mubeen Sadhika
Thursday, March 16, 2023
Biorefineries
Biorefinery can be defined as a framework or a structure in which biomass is utilized optimally to produce multiple products and tries to be self-sustaining and not harmful to the environment.
A biorefinery is a facility that integrates biomass conversion processes and equipment to produce fuels, power, and value-added chemicals from biomass. Biorefinery is analogous to today’s petroleum refinery, which has multiple fuels and products from petroleum. By producing several products, a biorefinery takes advantage of the various components in biomass and their intermediates, maximizing the value derived from the biomass feedstock.
Global issues such as environmental problems and food security are currently of concern to all of us. Circular economy is a promising approach towards resolving these global issues. The production of bioenergy and biomaterials can sustain the energy–environment nexus as well as substitute the devoid of petroleum as the production feedstock, thereby contributing to a cleaner and low-carbon environment. In addition, the assimilation of waste into bioprocesses for the production of valuable products and metabolites leads towards a sustainable circular bioeconomy.
Wednesday, March 15, 2023
பாலியல் உறவுகளும் மீகற்பனையும்(fantasy)-ஜிஜெக்கின்(Slavoj Zizek) விளக்கம்
தற்காலத்தின் மிக முக்கியமான மார்க்ஸியச் சிந்தனையாளர்,
சமூக-அரசியல் விமர்சகர்.
Thanks ;Mubeen Sadhika
Sunday, March 12, 2023
Philosophy of Absurdism by Albert Camus
According to many, the most fundamental philosophical question is what existence means. This is a question that Albert Camus explored in his novels, plays, and essays. His view of life was called absurdism, which held that life had no inherent meaning and that the search for meaning was ultimately futile. Camus even went so far as to suggest that suicide might be the only logical response to this absurdity.
Camus dismissed religion as a source of meaning since it was based on an illusion, and even if God did exist, the amount of pain and suffering in the world made God either an imbecile or a psychopath. Finding Findingships with other people was also dismissed as absurd because everyone we know and love will eventually die, and many will suffer before they do.
Camus did not believe that embracing illusion, as Nietzsche suggested, was a solution to the problem. Instead, Camus believed we should openly acknowledge and embrace life's absurdity. He used the example of Sisyphus, who was condemned to push a boulder up a mountain only to have it roll back down, yet continued to do so for eternity.
While this may not seem like a solution to the problem, Camus believed we needed to confront the truth of life's absurdity and refuse to let it destroy us. He suggested that we "imagine Sisyphus happy," although it may not be comforting.
In conclusion, whether life is absurd is a fundamental philosophical problem, and Camus' view of absurdism suggests that life has no inherent meaning. However, his solution was to confront the truth of this absurdity and embrace it, rather than give in to despair or seek illusory solutions.'
Suicide
Camus unreservedly condemned, strictly criticized, and rejected suicide and existential leap because suicide is a total surrender to absurdity and a full confession that life is too much on the individual. His interest in existentialism is to explain the meaninglessness of life through his explication of the absurd, which is found in human existence, and which continues to torment man until the finality of his existence, which is death. The knowledge that life is absurd is already a step towards conquering the meaninglessness of life. For Camus, therefore, since the absurd has no meaning, man must hold himself apart from it and revolt against it. This is why he suggested philosophical suicide as a solution to reverse the absurdity of life. The question then is, since man believes in the absurdity of existence, then how and where should he direct his conduct? Does suicide solve this problem? The consequences of Camus’ submissions are enormous, but be that as it may, this work attempts a study of the absurdity inherent in human existence to answer the following questions: How far did Camus achieve the idea of the absurdity of life? How realistic is Camus’ attempt to analyze life as meaningless apart from the meaning we give to it? Did Camus actually succeed in his effort to show that life is absurd? Finally, what are the implications of Camus’ absurdity to philosophy and life? This work will adopt expository and analytic methodological approaches. Here we shall, with a detailed and deep reflective inquiry, expose the place of absurdity in Camus’ philosophy to fully understand his understanding of life.
Causes of Cancer You've Never Heard About
Understanding risk factors
A cancer risk factor increases a person’s chance of getting cancer. Yet most risk factors do not directly cause cancer. Some people with several risk factors never develop cancer. And others with no known risk factors do.
Knowing your risk factors and discussing them with your healthcare team is essential. It will help you make better lifestyle choices to improve your health. This information could also help your doctor decide if you need genetic testing and counselling (see below).
General risk factors for cancer include:
Older age
A personal or family history of cancer
Using tobacco
Obesity
Alcohol
Some types of viral infections, such as human papillomavirus (HPV)
Specific chemicals
Exposure to radiation, including ultraviolet radiation from the sun
You can avoid some risk factors by stopping risky behaviours. These include using tobacco and alcohol, being overweight, and getting multiple sunburns. Other risk factors cannot be avoided, such as getting older. Learn about the risk factors for certain types of cancer.
Risk factors and cancer screening
Understanding your risk for cancer can help your doctor decide whether you could benefit from the following:
A cancer screening test, such as a mammogram or colonoscopy
A screening test at an earlier age and more often than routine screening
Surgery or medication to lower your cancer risk
For example, a woman whose mother had breast cancer is at least twice as likely to have breast cancer than a woman who does not have the same family history. Some women have strong family histories or genetic mutations linked to breast cancer. Since they are at a very high risk of breast cancer, they may remove their breasts to prevent cancer. This surgery appears to lower the risk of breast cancer by at least 95%. Also, these women may take medicine to lower the risk of breast cancer.
People with a strong family history of cancer may consider genetic testing. Your doctor or genetic counsellor can discuss getting specific genetic tests. They can tell you your risk of getting cancer based on your family history and other factors.
Understanding the difference between absolute and relative risk
Doctors use absolute and relative risk to assess if a person's risk is higher or lower than that of the general population or a specific group.
Absolute risk is the chance of a person developing a disease during a given time. This identifies how many people are at risk for disease in the general population.
For instance, consider the statement, “1 out of 8 women (12.5%) will get breast cancer in her lifetime.” This describes the absolute risk for the general population of women. It cannot identify the risk for a certain person or group. For example, absolute risk cannot show if a group of older women has a higher risk of breast cancer than younger women.
Relative risk compares the risk of disease between two groups of people. It resembles one group with a specific risk factor for a disease to another group’s threat.
For instance, imagine you are comparing the risk of breast cancer among 2 groups of 100 women. But only the women in 1 group have a particular risk factor for breast cancer. The other group of women does not have this risk factor. Researchers track how many people from each group develop cancer over time. Let’s say they find that 2 women with the same risk factor get cancer. But only 1 woman without this risk factor gets cancer. Then those in the first group have 2 times the risk of the second group. This is a 100% increase in relative risk. However, the absolute risk would be 2% or 2 out of 100 people.
Patients can use risk measurements to make better lifestyle choices or cancer screening choices. It is also important to know the difference between absolute and relative risk. For instance, the relative risk in the last example might sound high. It identified a person’s relative risk of developing cancer by 100%. But look at the absolute risk to get a more complete picture. That is, 1 person in 100 compared to 2 people in 100. If you want to compare the research you hear about in the news to your own situation, ensure you find the absolute risk. Most research studies report relative risks. This can make the risk sound higher than it actually is.
Friday, March 10, 2023
Environmental Issues That Construction Firms Must Address
For the last couple of years, it seems like barely a week has gone by without an alarming sign of climate change. There have been extreme weather events, unexpected wintry conditions in California, and the record-breaking heatwave we saw here in the United Kingdom last summer. The government has made pledges that it will take the issue seriously, but there has been a lot of scepticism from leading figures about how much that will actually amount to. Businesses and individuals must also step up and take responsibility.
When it comes to construction, there are a lot of different areas that require focus. So much of the conversation around the construction and property industries over the last couple of years has focused on other issues which, while admittedly important, do not factor in the long-term environmental concerns. For example, there was a huge amount written about the shortages in construction supplies and the shortage of skilled workers in that industry. Meanwhile, the property market ballooned during the pandemic years and has since come crashing back to earth. As we look forward to the rest of the year and the years beyond, here are the major environmental issues that construction firms must address when working.
1. Air Pollution
Air pollution has been pushed to the forefront in recent months. For example, London’s mayor Sadiq Khan has made cleaner air a considerable part of his mission. It is important to remember that during the construction process, there are a lot of opportunities for exhaust fumes and other noxious vapours to be emitted for extended periods.
Construction firms must be aware of the air pollution they are causing and look for ways to mitigate it or rule it out entirely. A simple example of how they can cut down on exhaust created is by using electric vans and other vehicles to transport materials to the work site.
2. Non-Recycled And Non-Recyclable Materials
This is an area that every business needs to focus on, regardless of sector, but it can be particularly relevant here. People looking to build their properties from scratch may insist on using entirely new materials, but there is no need for such a definitive approach. Take something as simple as a wooden deck, for example. Recycled materials are just as hardy, just as effective, and just as easy to style.
It is the contractors' responsibility to offer a range of materials to their clients and recommend using recycled materials where they can. This will massively cut down on the amount of waste that the construction industry generates. It is also important to think about using recyclable materials.
So much waste from construction projects ends up in landfills. It is vital that the industry considers this issue and tries to avoid using everything from single-use plastics to non-biodegradable materials.
3. Impact On The Local Wildlife
The local wildlife will be affected every time a construction project gets underway. There is such a massive number of different elements and species at play that the idea that a project could be completely free of this issue is a hard one to believe. However, with the right preparation, surveys and consideration, the impact can be minimal. The specifics will vary from project to project depending on the location and the type of wildlife in the area. For example, a project near water must consider everything from fish and frogs to the animals that use the space.
One of the most important species that anyone considering renovating or demolishing a building must think is bats. Bats are a protected species in the UK, and they often make their nests in roofs, lofts, and barns. They are also often found in trees, and a bat survey must be conducted to ensure you are not damaging their habitat.
The first step is to take a preliminary roost assessment. If a roost is found, you will need further surveys about the best way forward. For more information about bat surveys and other wildlife surveys, talk to the team at Arbtech. They can help you to get surveys done quickly and efficiently and advise on how your project can proceed.
4. Noise Pollution
This point may seem a little less grave than some of the others discussed already, but it is a major factor to the local people and wildlife. Sustained noise pollution can be a serious problem, so it is advised that construction companies check with the local council before they begin a project. Work must be restricted to certain times of day, or it may be that the project needs to be moved entirely.
5. Using Methods That Cause Erosion And Contamination
As unfortunate as it may be, there are still many ways that construction companies can damage the local environment through carelessness. For example, it is possible for the soil surrounding the worksite to become eroded thanks to the coming and going of heavy vehicles and heavy equipment, not to mention the ongoing disruption of the construction work itself. Soil and water contamination is also a significant risk on many projects and requires constant vigilance from the people working on the site to ensure that it is not happening.
One of the main factors contributing to these harmful scenarios is businesses not investing in newer techniques and new equipment, which are less likely to have a negative impact. Given the challenging market, it is understandable that spending a lot of money is the last thing any firm wants to commit to. However, the environmental impact of any construction project must be kept to a minimum.
Thursday, March 9, 2023
அறிவிலிருந்து உண்மைக்கும்…உண்மையிலிருந்து அறிவுக்கும்-ஜிஜெக்கின்(Slavoj Zizek) விளக்கம்..
தற்காலத்தின் மிக முக்கியமான மார்க்ஸியச் சிந்தனையாளர்,
சமூக-அரசியல் விமர்சகர்.