Volume 10 | Issue 6 |

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glass fiber reinforced,fly ash concrete

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Quality of sleep and dietary intake effects health of an individual. Poor sleep quality could be associated with poor diet. Therefore we assessed the diet quality and sleep quality of teachers belonging to Nagaland, India. This is a cross-sectional study design, data were collected via survey-interview. A total of 157 teachers data were collected in the North East, India. Food frequency questionnaires were used to assess their diet quality and the Pittsburgh Sleep Quality Index questionnaires were used to assess their sleep. It was found that there was significant association between gender, food type, and BMI with poor sleep quality. Majority of them had normal sleep quality but poor diet quality. There was no association found between diet and sleep quality, this maybe due to smaller sample size.

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Creative Commons Attribution 4.0 and The Open Definition

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Dietary pattern, sleep quality, eating habits, food intake.

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Creative Commons Attribution 4.0 and The Open Definition

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Cracking of concrete is a common phenomenon without immediate and proper treatment, cracks in concrete structures tends to expand further and eventually require costly repairs. Even though it is possible to reduce the extent of cracking by available modern technology, remediation of cracks in concrete has been the subject of research for many years. Cracks and fissures are a common problem in building structures, pavements, and historic monuments.

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EXPERIMENTAL STUDY ON SELF HEALING CONCRETE

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As we all know, structures such as buildings, bridges, highways, and dams are all supported by soil, and the soil at a construction site may not always be completely suitable. The in situ soil in granular soil deposits can be quite loose, indicating a large elastic settlement. In this situation, the soil must be modified in order to raise its unit weight, which will boost shear strength and load bearing capability. When the top layers of soil are unsuitable, they must be removed and replaced with better soil, which may then be used to build the structural foundation. As a result, improving load bearing capability is even more crucial when constructing a structural foundation. Soil stabilisation is a procedure that involves strengthening the physical attributes of the soil by blending or mixing substances in order to improve its strength, durability, and other properties. Soil stabilisation methods include: cement stabilisation, lime stabilisation, bitumen stabilisation, chemical stabilisation, and a new emerging technology of stabilisation using Geo textiles and Geo synthetic fibers. Bamboo fibers are being used as a geo synthetic material for soil stabilisation in this project. CBR values will improve with the addition of bamboo fibers to the soil, and the thickness of the pavement layer will be reduced. Bamboo fibers are a type of geosynthetic material that is readily available, environmentally beneficial, and cost-effective. When compared to traditional construction methods, the overall cost of using soil stabilising methods in construction is lower. The liquid limit of the soil, the soil's MDD, the soil's OMC, the soil's shear strength, and the soil's CBR value were discovered. We determined from the restricted laboratory investigation that 0.75 percent bamboo fiber can significantly improve the qualities of Black cotton soil. The benefits of this project include the low cost of incorporating bamboo fiber into soil stabilisation and the ability to produce excellent concrete.

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Stabilization of Soils Using Geosynthetic Material

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Creative Commons Attribution 4.0 and The Open Definition

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SELF-COMPACTING CONCRETE

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The main aim of the project is to design a nine-level inverter using solar panel as input DC voltage. In recent years, high-order multi-level inverters have attracted the attention of many scholars in low-voltage applications such as new energy power generation, microgrids, and motor drives, due to their advantages of high output power quality, low current harmonics, and low voltage stress of switching devices. To reduce the device number per unit level of the existing nine-level inverters, a topology of single-phase transformer less nine-level inverter was proposed. The proposed topology consists of only 10 switching devices and 4 capacitors. In this project, the main controlling component is PIC Microcontroller. PWM signals are sent to the 9-level inverter circuit ?

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A NOVEL SINGLE PHASE NINE-LEVEL TRANSFORMER-LESS PHOTOVOLTAIC (PV) INVERTER

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This Project is based on a novel control of PV solar system as a FACTS device STATCOM, termed PV-STATCOM, for power oscillation damping (POD) in transmission systems. In the proposed control, as soon as power oscillations due to a system disturbance are detected, the solar farm discontinues its real power generation function very briefly (few tens of seconds) and makes its entire inverter capacity available to operate as a STATCOM for POD. As soon as power oscillations are damped, the solar farm restores real power output to its pre-disturbance level in a ramped manner, while keeping the damping function activated. This results in much faster restoration than that specified in grid codes. During nighttime, the solar farm performs POD with its entire inverter capacity. It is shown from EMTDC/PSCAD simulations that the proposed control provides significant increase in power transfer capacity on a 24/7 basis in systems which exhibit both local inertial and inter-area oscillatory modes. The proposed PV-STATCOM is about 50-100 times cheaper than an equivalent STATCOM for providing POD at the same location. This novel control can potentially bring large savings for transmission utilities and open up a new revenue making opportunity for solar farms for providing POD.

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Creative Commons Attribution 4.0 and The Open Definition

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PV SOLAR SYSTEM CONTROL AS (PV-STATCOM) FOR POWER OSCILLATION DAMPING

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Creative Commons Attribution 4.0 and The Open Definition