Sustainable Supply Chain Management (SSCM) is a still maturing research field which needs more studies done in an integrated manner. Importance of SSCM is increasing each day, due to the need of having firms to be sustainably operating. Main objective of the study was to map the theories available in SSCM literature and identify the gaps which could be used as avenues for future research. Methodology used was Systematic Review of literature together with a content analysis. Review was done for 32 articles found in literature during the period 1995 to 2015. Usage of few popular theories like Resource Base view, Transaction Cost Economics Theory, Institutional theory, Agency Theory etc were commonly identified with a lack of research conducted considering all three factors of sustainability. The call for more research on the social aspect of sustainability, quantification of impact of aspects of sustainability on firm’s SC performance with more theoretically grounded studies and the adoption of theories which spring out from SSCM itself, rather than theories borrowed from other disciplines were identified as the recommendations of the study.

In order for any organisation to maintain their competitive edge and stance as an ethical company, compliance to Procurement Best Practices and managing the procuring cost since it means managing the revenue out flow of the company, will  be crucial for any organisation. Hence ensuring that procuring activities, a key link in any Supply Chain, comply to the golbally accepted standards will be important for a company to secure the advantageous edge they have over the others in the industry. Procurement Compliance (PC) as an academic field, is nurtured with many theories adopted from diverse disciplines. Main objective of the study was to map those theories available in PC literature and identify the gaps which could be used as avenues for future research. Systematic Reviewing of literature was the methodology leveraged in conducting the study, together with a content analysis. Review was done for 18 articles found in literature during the period 2000 to 2018. Usage of popular theories like Agency Theory,Transaction Cost Economics Theory, Stakeholder Management Theory, Resource Base View etc were identified to be commonly used in PC related studies with a lack of research conducted considering theories which are specific to the filed of Supply Chain Management (SCM), the field from which PC emerges from. The call for more research on the quantification of the imapct of  factors asscociated with these theories on PC and at large, the firm’s performance and conducting studies with theories springing  out from SCM itself, rather than theories borrowed from other disciplines were identified as the recommendations of the study

The stability andof the business cycle model with time delay are discussed. The linear stability and of the model are studied by using the geometric criterion of stability switching for time delay systems, and the differences and relations between the two stability are compared. Finally, numerical simulation is applied to verify the accuracy and effectiveness of the conclusion

The assessment of concrete structure consist not only evaluation of its present condition but also to predict the cause of deterioration and its residual life. Hence, it is indispensable to have accurate assessment of physical, chemical and electro- chemical properties of concrete to enhance its existing life and life of the structure as well. If the cause of deterioration is predicted and a proper assessment of the structure is made, it may be economical feasible to repair the distressed structure and prolong its residual life. Number of tests need to be carried out to access the extent of distress and damages in the concrete structure and to estimate the quality/ strength of the concrete, before taking up any repair measures. These tests can be of different type which include destructive, non-destructive  (NDT) or partially destructive (PDT).The main aim of this research is to highlight the importance and significance of different non- destructive testing methods employed to assess the present condition of RCC structure of different type and age. A balanced and systematic approach for the interpretation of test results based on NDT and PDT will be represented to know their present state and extent damage and deterioration present in the structure. A systematic and economical approach will also be suggested for their repair and rehabilitation measures to enhance their service life.