Chandigarh University

About: Chandigarh University is a education organization based out in Mohali, India. It is known for research contribution in the topics: Computer science & Chemistry. The organization has 1358 authors who have published 2104 publications receiving 10050 citations.

Bio Concrete- The Self-Healing Concrete

Abstract: Background/Objectives: In the present scenario the use of bio concrete proved very fruitful for construction of durable structures and it also improved the properties of concrete and maintenance cost is reduced. Method/Statistical Analysis: In this paper an attempt has been made to use different microorganisms so as to observe the strength gain as a result of sprouting of filler material inside the cement sand matrix pores. The strength of concrete mix is evaluated by conducting compressive strength test, split tensile strength test and flexural strength test. Scanning Electron Microscopy(SEM)/XRay Diffraction(XRD) analysis is further done to prove involvement of the isolated ureolytic bacteria in calcium carbonate precipitation.Findings: From the tests conducted on various specimens of bio concrete using different bacteria, a clear comparison can be made for strengths of different specimens of bio concrete using different bacteria and convention concrete. The results obtained from the experiment concludes that when water enter in the concrete after the formation of cracks activates the dormant bacteria (inactive) by the process of metabolically mediated calcium carbonate precipitation and it increased the strength of bio concrete as compared to the conventional concrete.Applications/Improvements: Bio concrete is durable and offers better resistance to corrosion and freeze thaw. Crack remediation using bio-concrete is better than epoxy treatments.

Optimized Energy Efficient Secure Routing Protocol for Wireless Body Area Network

Abstract: Fast growing age demographics, sedentary lifestyle, increasing chronic diseases, shortage of medical facilities and huge costs for healthcare treatment have arisen the need for ubiquitous as well as inexpensive healthcare services. A huge part of the cost in providing healthcare is utilized in frequent patient’s visits and continual monitoring of the chronically ill patients. Wireless Body Area Network (WBAN) has offered promising outcomes for Quality of Service (QoS) in the healthcare system. Nevertheless, it is constrained with restricted battery power of sensors, security and privacy issues for its complete adoption. Henceforth, security, privacy and energy efficiency issues need to be addressed well with optimal solutions. The current work proposes an Optimized Energy Efficient Secure Routing Protocol (OEESR) that minimizes network congestion, provides secure data transmission and selects the most optimal route in the network. The performance of OEESR protocol is contrasted with other state-of-art protocols. The results show that OEESR is highly secure and achieves 90% throughput with 8.8% of overall energy consumption. It is having only 13% of packet dropping rate with respect to transmission power.