332 research outputs found
Dynamic Analysis of Steel Frame Using Manufactured Viscous DMAPER
A five storey single bay steel moment resisting frame with manufactured viscous damper is analyzed for Bhuj earthquake acceleration data of January 26,2001 using SAP 2000v14.0 analysis tool. Six different steel frame model is set up in which placement of damper is varied. Time history analysis was carried out and the output parameters like displacement, velocity, acceleration and base shear were tabulated and graphical results were also obtained. The results showed that the steel frame performed better when manufactured viscous damper is placed on all the floors as there is larger reduction in the drift, velocity, acceleration, but larger increase in base shear
1-(4-Chlorophenyl)-2-[(3-phenylisoquinolin-1-yl)sulfanyl]ethanone
The title compound, C23H16ClNOS, exhibits dihedral angles of 11.73 (1) and 66.07 (1)°, respectively, between the mean plane of the isoquinoline system and the attached phenyl ring, and between the isoquinoline system and the chlorophenyl ring. The dihedral angle between the phenyl and chlorophenyl rings is 54.66 (1)°
1,3,6-Trimethylpyrano[4,3-b]pyrrol-4(1H)-one
All the non-H atoms of the title compound, C10H11NO2, are almost coplanar [maximum deviation = 0.040 (3) Å]. The crystal structure is stabilized by C—H⋯O hydrogen bonds
1-(3,5-Dimethyl-1H-pyrazol-1-yl)-3-phenylisoquinoline
The molecular conformation of the title compound, C20H17N3, is stabilized by an intramolecular C—H⋯N interaction. The crystal structure shows intermolecular C—H⋯π interactions. The dihedral angle between the isoquinoline unit and the phenyl ring is 11.42 (1)° whereas the isoquinoline unit and the pendent dimethyl pryrazole unit form a dihedral angle of 50.1 (4)°. Furthermore, the angle between the mean plane of the phenyl ring and the dimethyl pyrazole unit is 47.3 (6)°
Voluntary market for Sustainable Aviation Fuel - A case study
Aviation industry has grown rapidly over the years with the trend looking to continue in the coming decades. The pressure on the aviation industry to decarbonize is increasing and Sustainable Aviation Fuel(SAF) has been identified as one the key levers to reduce GHG emissions in aviation sector. The demand for SAF is mainly driven from mandates and regulations currently but the development of these mandates has been slow and the level of ambition has also stayed relatively low. The demand for SAF from voluntary market is currently quite low.
This thesis explores the topic of voluntary market for SAF and the lack of it. The thesis defines the voluntary market, identifies the key drivers and challenges, and analyzes the evolution of voluntary market over the short to long term by building on the analysis of alternative voluntary markets in carbon credits and renewable energy. The thesis also analyzes broadly all the current aviation industry developments and business model alternatives related to voluntary market for SAF and defines the key strategic considerations for the case study company to bring a SAF offering for Business to Business (B2B) market (e.g., corporates and businesses). The thesis utilizes qualitative research methodology. Apart from the industry analysis, 10 semi-structured interviews and several informal discussions were carried out at the case company with a diverse group of interviewees to derive insights and draw conclusions.
In terms of theoretical significance, the thesis provides new insights into less studied and analyzed topic of the voluntary market for SAF which is still in its early stage of development in aviation industry. The practitioners can use the analysis to understand the key levers and pitfalls to scale the voluntary market for SAF
1-(4-Chloro-3-fluorophenyl)-2-[(3-phenylisoquinolin-1-yl)sulfanyl]ethanone
In the title compound, C23H15ClFNOS, the isoquinoline system and the 4-chloro-3-fluorophenyl ring are aligned at 80.4 (1)°. The dihedral angle between the isoquinoline system and the pendant (unsubstituted) phenyl ring is 19.91 (1)°
3-(4-Methoxyphenyl)-1H-isochromen-1-one
The asymmetric unit of the title compound, C16H12O3, contains two crystallographically independent molecules. The isochromene ring system is planar (maximum deviation 0.024 Å) and is oriented at dihedral angles of 2.63 (3) and 0.79 (3)° with respect to the methoxybenzene rings in the two independent molecules
3-(1,3-Dioxolan-2-yl)-2-hydrazino-7-methylquinoline
In the title molecule, C13H15N3O2, the dihedral angle between the mean plane of the 1,3-dioxolane group and the 2-hydrazino-7-methylisoquinoline unit is 85.21 (5)°. The conformation of the molecule is influenced by bifurcated N—H⋯(O,O) and N—H⋯N intramolecular hydrogen bonds. In the crystal structure, molecules are linked via intermolecular N—H⋯O hydrogen bonds, forming extended chains along [001]
3-Acetyl-6-chloro-1-ethyl-4-phenylquinolin-2(1H)-one
In the title compound, C19H16ClNO2, the dihedral angle between the plane of the phenyl substituent and 3-acetylquinoline unit is 75.44 (5)°. The crystal structure is stabilized by intermolecular C—H⋯O hydrogen bond
1-(3,5-Diethyl-1H-pyrazol-1-yl)-3-phenylisoquinoline
In the title molecule, C22H21N3, the isoquinoline ring is almost planar [maximum deviation = 0.046 (1) Å] and makes dihedral angles of 52.01 (4) and 14.61 (4)° with the pyrazole and phenyl rings, respectively. The phenyl ring and the pyrazole ring are twisted by 44.20 (6)° with respect to each other. The terminal C atoms of both of the ethyl groups attached to the pyrazole ring are disordered over two sites with occupancy ratios of 0.164 (7):0.836 (7) and 0.447 (16):0.553 (16). A weak intramolecular C—H⋯N contact may influence the molecular conformation. The crystal structure is stabilized by C—H⋯π contacts involving the phenyl and pyrazole rings, and by π–π stacking interactions involving the pyridine and benzene rings [centroid–centroid distance = 3.5972 (10) Å]
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