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Asymmetric Catalysis, Transition metal catalysis, Allylation, Propargylic alkylation, Cooperative catalysis and nonadjacent stereocenter
Transition metal catalysis has transformed asymmetric synthesis by enabling precise control of stereocenters, essential for bioactive molecules. This thesis outlines a systematic investigation of stereochemical complexity ... -
Asymmetric Catalysis: From Atroposelective Organocatalysis to Iridium-Catalyzed Generation of Central Chirality
Thesis Abstract: This thesis, entitled as “Asymmetric Catalysis: From Atroposelective Organocatalysis to Iridium-Catalyzed Generation of Central Chirality” is divided into three chapters. Chapter 1, highlights the ... -
Asymmetric Synthesis of Amino Acid Derivatives and Total Synthesis of Biologically Active Natural Products
The thesis describes the development of synthetic method for the synthesis of -amino acid esters, amides, thioesters using Ellman sulfinimines. The procedure developed was further utilized in the synthesis of di and tri ... -
Asymmetric Synthesis Of Troger's Base Analogues And Studies In Molecular Recognition
(Indian Institute of Science, 2005-04-25)Troger's base was the first amine to be resolved where the chirality was due to solely very high inversion barrier around nitrogen atom. Though the molecule was known for over a century, work done during the past decade ... -
Asymptotic Analysis of Multi-scale, Multi-loop Feynman Diagrams
It is very challenging to solve multi-scale, multi-loop Feynman diagrams analytically. The presence of different kinematic scales makes the computation of Feynman diagrams very difficult, sometimes impossible to get the ... -
Asymptotic Analysis Of The Dispersion Characteristics Of Structural Acoustic Waveguides
(2010-04-12)In this work, we study the coupled dispersion characteristics of three distinct structural-acoustic waveguides, namely: -(1) a two-dimensional waveguide, (2) a fluid-filled circular cylindrical shell and (3)a fluid-filledelliptic ... -
Asymptotic Lower Bound for Quasi Transitive Codes over Cubic Finite Fields
(2018-07-14)Algebraic geometric codes were first introduced by V.D.Goppa . They were well recognized and developed by Tsfasman, Vladut and Zink because they have parameters better than Gilbert-Varshmov bound and thus giving rise to ... -
Asymptotic Modelling of Carbon Nanotube (CNT) and CNT-Reinforced Composite Structures Using Strain Gradient Formulations
Carbon nanotubes (CNTs) have garnered attention for their remarkable mechanical, thermal, and electrical properties, making them valuable in various applications. CNTs are particularly advantageous in aerospace structures ... -
Asymptotically Correct Dimensional Reduction of Nonlinear Material Models
(2018-07-30)This work aims at dimensional reduction of nonlinear material models in an asymptotically accurate manner. The three-dimensional(3-D) nonlinear material models considered include isotropic, orthotropic and dielectric ... -
Asynchronous distributed rate control algorithms for best-effort sessions in integrated services networks with minimum rate guarantees
Packet switching networks provide a best-effort transport service that is typically used by store-and-forward applications, such as email, file transfer, and web browsing. In an Integrated Services Packet Network, the ... -
At-site and Multisite Probabilistic Forecasting of Streamflow
Streamflow forecasts are very useful for a variety of applications such as flood warning, reservoir operation and water resources planning and management, especially in countries like India where streamflow can be highly ... -
Atom-to-circuit Modeling Strategy for 2d Transistors
Two-dimensional materials are now being considered as viable options for CMOS (complementary metal-oxide-semiconductor) technology extension due to their diverse electronic and opto-electronic properties. However, introduction ... -
Atomic-level Investigation and Proposals to Address Technological Roadblocks and Reliability Challenges in 2D Material Based Nanoelectronic Devices
The transistor scaling is witness to many extraordinary inventions during its consecutive miniaturization. The journey began from Dennard’s classical constant field scaling, crossing through the milestones like strain ... -
Atomic-Scale Insights into the Conversion Chemistry of Metal Chalcogenides using Advanced Electron Microscopy for Structure-Property Correlation
Conversion chemistry is a pivotal technique for transforming pre-synthesized nanocrystals into new materials with precise control over their properties. The investigation of phase transformations and conversions in 2D metal ... -
Atomistic Simulation of Grain Boundary Effects on Cascade Damage in Vanadium
Advancements in fusion reactor technology has led to the construction of ITER and the realisation of fusion energy is closer than ever before. However, realisation of fusion energy critically depends upon breakthrough in ... -
Atomistic Study of Carrier Transmission in Hetero-phase MoS2 Structures
(2018-05-25)In recent years, the use of first-principles based atomistic modeling technique has become extremely popular to gain better insights on the various locally modulated electronic properties of nano materials and structures. ... -
Atomization characteristics of alternative aviation biofuels, Jet A-1, and water from a hybrid airblast atomizer
Studies on the atomization of sustainable aviation fuels (SAF) from aircraft engine atomizers are essential to replace the present fossil type jet fuel to counter the rise in aviation-caused CO2 emissions in the atmosphere. ... -
Atomization Characteristics of Camelina and Jatropha-Derived Drop-in Aviation Biofuels
(2017-11-22)Biofuels in civil aviation is actively studied in recent years to identify potential alternative jet fuels to meet stringent environmental regulations imposed to tackle degraded air quality caused by fossil fuel combustion. ... -
Attention-Feedback and Representations in OCR
A Kannada OCR, named Lipi Gnani, has been designed and developed from scratch, with the motivation of it being able to convert printed text or poetry in Kannada script, without any restriction on vocabulary. The training ... -
Attenuation Characteristics and Seismicity Analysis of Himalayan Region with Linear Joint Time-frequency Analysis Techniques
About 59% of the land area of the Indian subcontinent has high chances of moderate to severe earthquakes, of which the Himalayas are the most seismically active. Regardless of the high seismic activity, the seismic network ...