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The participants of the TQ expert discussion see a great need to inform people in particular about the benefits and possibilities of Artificial Intelligence (AI).
For over 43 years, EBV and Vishay have been successful business partners due to Vishay's new leading-edge products and EBV's technical expertise.Citation: LIM LOK GUAN JACOB (2011-07-14). Effects of Recycled Aggregates on Concrete Properties. ScholarBank@NUS Repository.
Abstract: Sustainable development is gaining popularity around the globe nowadays. The rapid development in Singapore has resulted in significant amount of waste generation from various sectors. Being a small country with limited natural resources, it is timely to explore the potential of recycling these waste materials into resources for construction related applications. The Building and Construction Authority (BCA) has been working closely with industry partners to promote wider adoption of sustainable materials in our built environment. The idea of reusing aggregates from local demolition waste for structural concrete was one of the strategies used. Recycled aggregates (RA) are comprised of crushed, graded inorganic particles processed from the materials that have been recovered from the constructions and demolition debris. For the conservation of natural resources, reusing and recycling of construction and demolition waste (C&DW) is the most obvious way to achieve sustainability in the construction sector. Currently, recycled concrete aggregate (RCA) is produced from C&DW in modern recycling facilities, under good quality control provisions which could lead to improve merits in performance compared with the earlier days of recycling. A recycled aggregate concrete (RAC) produced with the combination of natural aggregate (NA) and recycled concrete aggregate (RCA) is obviously more sustainable and economical than using conventional natural aggregate concrete (NAC) alone. The aim of this study is to compare the engineering properties as well as durability performance of RAC to the conventional concrete. This particular study shows that the properties of aggregates (i.e. physical, mechanical, and chemical), and hence the quality of RCA is varies from the 4 different major recycling plants. The first step in the investigation involved the characterization of RCA through testing including physical, mechanical and chemical. Aggregates were classified based on the requirements of SS EN 12620:2008 which provided the main guidance for aggregates for concrete. Following the establishment of the aggregates conformity for concrete production, a further in-depth investigation involved the production of designed concrete mixes; Grade 30, Grade 60 and Grade 80 with the natural aggregates being replaced by RCA in various proportions (20%, 50% and 100%). The investigation included assessment of the engineering properties (i.e. compressive strength, flexural strength, tensile splitting strength, modulus of elasticity and drying shrinkage) and the durability properties (i.e. rapid chloride permeability test) of equivalent strength concrete in the fresh state as well as in the hardened state. Based on the findings, it was found that concrete properties of Grade 30 containing different percentages of recycled aggregates did not differ much compared to the control mixes, provided that the effective water/cement ratio was kept constant. However, for concrete properties of Grade 60 and Grade 80 it was generally observed that the higher replacement % of recycled aggregates lowered the strength of recycled aggregates concrete. Besides, effects of two RCA parameters (i.e. particle density and Los Angeles abrasion) have significant effects on the strength. Further research is recommended with higher replacement percentage of RCA for RAC properties. Based on the 6 months monitoring, generally the properties of RCA produced by the 4 plants were not consistent. It can however be improved with more stringent quality control.Our reviews are aggregated from multiple sources to give you the best overview about nano5thonline.com.
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How do I get a refund from Nano5thonline?Lets begin with helping to uncover What are Female Reproductive System problems?
The healthy reproductive health of a woman is a major concern today. It's not only a point of debate but requires immediate actions as well.
"As per the data, more than 70% of the women face the Reproductive system problems during their lifetime."
We have covered the various common Female Reproductive system problems in this article.
Read till the end to understand all of them.
Eye-Opening Facts about reproductive system of women -
- According to the WHO - World Health Organisation, more than 85% of sexually active women are in danger of becoming pregnant if they aren't using contraceptives.
- As per the WHO stats, nearly 87,000,000 women got pregnant globally due to the low usage of contraceptives.
- As per the WHO stats, almost 25% of the total maternal death could get minimized by the use of contraceptives protecting the female reproductive system.
- According to A R Sarin, 1991 - Indian J Matern Child Health, More than 50% of women having different ages become the victims of ANAEMIA.
- Almost 50 times higher, Indian Women confront the higher danger of death due to unwanted pregnancy or vaginal issues in comparison to other countries.
What are the most common Female Reproductive System problems?
1.PCOS - Polycystic Ovary Syndrome
Such syndrome takes place when the adrenal glands or the female ovaries release more hormones of a man than expected. Obese Women are more likely to have Polycystic Ovary Syndrome.
The risk associated with the PCOS are as follows -
- Heart-related diseases
- Fluid-filled sacs or cysts in the ovaries section
- Diabetes
Symptoms of the PCOS are as follows -
- Hair Thinning or Baldness
- High level of Skin Acne
- Surplus hair expansion in Toes, Face area, Stomach, Chest, and Thumbs
- Results in Pelvic-Pain
- Hair Dandruff Issue
- Infertility
- Solidified dark brown or black color spots in the body
- Skin becoming oily
2.Uterine Fibroids
It is the tumor in the vagina of women which is although not much prone to cancer disease. Being highly common in women of bearing age, its cause, and reason are still to be known! These are generally composed of cells of the muscles. Fibroids also consist of tissues that usually grow within the women's womb or on the inside and the outside area of the women's uterus walls.
The symptoms of Fibroids in women can range in any or all of the following -
- Pain in abdomen and lower part of the backside
- Sexual intercourse resulting in severe pain
- Early labor
- Infertility
- Severe pain & heavy bleeding menstruation
- More urination than normal
- Consistent Miscarriages
Most women might not see any side effects of this tumor, henceforth routine vagina checkup is recommended to prevent such problems, if any, as soon as possible.
3.HIV/AIDS
HIV attacks the CD4 cells in the body of women. With time, it damages and invades every single cell of the body which gets difficult to control. Only with advanced studies, cure for such infections can be done.
HIV in women spreads via having sexual intercourse with the person who is already infected with HIV. It's generally said that once a person has HIV - he/she has it for a lifetime. AIDS - Immune Deficiency Syndrome - here is the last stage of HIV. In this stage, the complete immune system of the person is damaged.
"HIV holds the power to spread via breastfeeding, henceforth the HIV-positive US women must not breastfeed their babies."
4.Endometriosis
The first most sign that shows you are going through Endometriosis is - 'difficulty in getting pregnant.' It is a state of a problem when the tissues that are supposed to line the uterus ends up growing in a different location. It can end up growing in the parts like -
- At the place of bladder
- Above the bowels
- At the backside of the uterus
- Within the ovaries
The tissue is then said to be'misplaced' from its main location affecting the main reproductive health of the women. It leads to severe pain in the abdomen, pelvic area, and lower back, heavy bleeding during periods, and might lead to Infertility. There are rare chances that this misplaced tissue will grow somewhere else apart from the above-stated locations.
5.Gynecologic Cancer
It starts on the women's reproductive organs gradually maximizing its effects on other nearby areas. It occurs in the pelvic area - just below the abdominal and between the hips.
"CDC has provided its useful resources and materials for the healthcare workers and the women to raise their bar of awareness regarding the five major Gynecologic Cancers."
Women prone to reproductive system problems can witness the following cancers -
- Ovarian Cancer is generally seen in the ovaries part - which is situated on two sides of the uterus.
- Vaginal Cancer is the kind of cancer that initiates directly in the vaginal area. This area is the pipe-shaped hollow surface which is there amidst the uterus and outer body area.
- Cervical Cancer starts from the cervix part - A Uterus narrow and downward part.
- Vulvar Cancer starts from the vulva area which is nothing but the outside layer of the genital organs in women.
- Uterine Cancer is cancer that initiates directly from the uterus. Uterus resides