TIET Digital Repository

Thapar Institute of Engineering & Technology (TuDR)

Welcome to Thapar Institute of Engineering & Technology Digital Repository (TuDR).

TuDR is the digital asset management system which integrates the intellectual output in the form of research articles, PhD theses, and M.Tech / M.E. theses. TuDR facilitates the sharing and exchange of intellectual output of the university.

TuDR supports the management of scholarly resources of enduring value to Thapar University. Faculty members, students, and research scholars use TuDR services to share their intellectual work with the global academic community.

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Recent Submissions

Implementing Generic Built-in Self-Test for Testing Kilo-Bit Memories
(2005-05) Gupta, Anuj; Gupta, Sanjay; Singh, Amardeep
Resource Mobilization by Micro, Small & Medium Enterprises in India: An Exploratory Research
(2026-02-25) Mathur, Dhiraj; Kumar, Piyush; Hota, Pradeep Kumar
Micro Small Medium Enterprises (henceforth MSMEs) are the major drivers of the economies across the world. They not only are a major contributor to the GDP growth but also create employment for a major part of the population. Mobilization of resources is a key and critical strategy for MSMEs to sustain, grow and continue to contribute to the economy. However, due to limitation of their size, MSMEs face challenges of resource (human, financial, technology etc.) constraints. MSMEs also need to externally compete with Larger Enterprises (henceforth LEs) which by virtue of their vintage, market establishment, and better leverage of technology, deploy resources more effectively and efficiently. A detailed review of literature suggests that majority of work in resource mobilization has been conducted in LE setups. MSMEs differ from LEs in terms of capabilities to develop and execute strategies to manage and deploy resources for continued growth. These differences create unique challenges for resource mobilization in MSMEs. Hence, existing theories for LEs may not fully encapsulate and explain the uniqueness and nuances of resource mobilization in MSMEs. Further, due to significant differences in economic, political and social eco-systems between emerging economies such as India and developed economies, existing MSME theories developed for advanced economies may not map to those in emerging economies. A grounded exploration of resource mobilization by MSMEs in emerging economies is thus necessary for progressing research further on how MSMEs in emerging markets deploy resources in a resource constrained environment. This thesis aims to build a model around resource mobilization in MSMEs operating in India. We adopted an exploratory approach under which an iterative process of literature review was followed, highlighting the internal and external components and linkages of resource management and the dynamics of interaction between them. Based on literature review, we narrowed our focus to select resource management theories of Bricolage, Resource Orchestration and Social Embeddedness to build following research questions 1) How do various factors, internal and external to MSMEs, induce them towards Bricolage and what Bricolage actions do MSMEs utilize to sustain themselves? 2) How do MSMEs orchestrate resources internal and external to the organization to create competitive advantage? and 3) How do MSME leverage social network and embeddedness for mobilizing resources? An inductive, multiple-case research design was developed for the thesis. Data was collected from 6 MSMEs in India. Selection of organizations was done through theoretical sampling method. Data was collected and triangulated through semi-structured interviews, observations collected through field visits, documents such as financial reports provided by MSMEs, and data collected through secondary sources such as company websites. Data analysis was conducted through within case analysis and cross case analysis. The research thesis explores a hitherto less studied area of MSMEs within resource-scarce environments. This research would also assist MSME practitioners in emerging economies to plan for rapid resource mobilization and scaling up in their venture to achieve their objective of sustenance and growth under condition of resource scarcity. Finally, this research will also guide policymakers on what conducive and supportive conditions are needed to enable MSMEs to mobilize resources in emerging economies successfully.
Crack Remediation in Cementitious Composites Using Self-Healing Strategies
(2026-02-20) Singla, Ritika; Sharma, Shruti; Siddique, Rafat
Concrete is a widely utilized construction material owing to its cost-effectiveness, adaptability and capacity to withstand substantial compressive loads. However, its limited tensile strength renders it prone to cracking. These cracks accelerate the entry of water and deleterious substances like sulphates, chloride and carbon dioxide into the concrete, resulting in the corrosion initiation of the protective passive layer of steel reinforcement. As the steel undergoes corrosion, it expands, causing the concrete cover meant to shield it from the environment to spall off, ultimately compromising the safety of the structure and its occupants. Regular maintenance and repair work is necessary to prevent such deterioration, however, conventional methods for repairing cracks often fail to match the properties of the existing material, demonstrate limited long-term effectiveness, and are not ideal for inaccessible or narrow cracks. This research investigates a sustainable, material-integrated approach by exploring chemical-assisted healing for crack-healing for closure of cracks in cementitious structures. The study focuses on three primary strategies for chemical healing- injection-based, dipping-based, and admixture-based approaches, evaluated using various healing agents including sodium silicate (NS), calcium hydroxide (CH), calcium nitrate (CN), and their combinations. In the injection-based approach involved the direct insertion of healing agents into the cracks, enabling localized and controlled healing. In the dipping technique, the cracked specimens were immersed in the healing agent solution, facilitating capillary absorption and internal crack repair, whereas in the admixing approach, the healing agents were directly in the cementitious mix during casting without encapsulation. These treatments were evaluated for their effectiveness in healing cracks, compatibility with the cement matrix, and suitability for field-scale applications. The research utilized different evaluation techniques, incorporating both traditional and advanced non-destructive testing (NDT) tools such as Ultrasonic Pulse Transmission (UPT) and Infrared Thermography (IRT), along with visual inspections, water permeability, sorptivity tests, recovery in compressive strength, and microstructural characterization (FESEM-EDS and XRD). The sensitivity of ultrasonic waves to the change in the elastic properties of the medium through which it propagates is used to monitor the progressive healing of cracks in concrete. An increase in the UPT signal strength with the progression of healing in cracked concrete was used to interpret the condition of the crack. Furthermore, the progression of healing is also effectively captured by an IRT camera, which identifies the healed zones based on surface temperature changes. Together, they provided a dual-mode real-time monitoring platform, offering a holistic understanding of the crack-healing phenomenon. Microstructural analyses revealed deposition of C-S-H gels (NS-treated) and calcite crystals (CN-treated) within cracks, confirming chemical compatibility with the host matrix. Comparative analysis revealed that surface crack sealing was achieved more quickly with dipping methods, while injection techniques provided greater depth of penetration and targeted application, making them more effective for both extensive and localized repairs. Systems utilizing admixtures show potential for developing intelligent self-healing concretes but need further enhancement for accommodating larger crack widths. This study not only confirms the viability of chemical-based strategies for crack healing through effective delivery methods but also underscores the dependability of advanced non-destructive testing (NDT) techniques in measuring healing effectiveness. The results from this research establish a foundation for the creation of automated crack detection and healing solutions, where real-time monitoring using UPT can initiate the controlled release of healing materials, and IRT can illustrate and verify the progress of healing. The approaches and results are adaptable for practical use in the field, such as spraying, injection, or dosing of admixtures, facilitating the development of sustainable and low-maintenance concrete infrastructure.
Development of sustainable approaches for the synthesis of biologically relevant molecules
(2026-02-19) Kaur, Parmjeet; Tyagi, Vikas
Admission 2026 Open
(The Tribune, 2026-01-24)