Development of High Temperature (3,400°F) and High Pressure (27,000 psi) Gas Venting Process for Nitrogen Batch Heater

This thesis discusses a venting process for nitrogen gas heated up to 3,400°F and 27,000 psi. Nitrogen at similar temperatures and pressures have successfully been vented in hot isostatic pressing (HIP) manufacturing processes, but to date no further applications are known for Heater Vessels used in hypersonic wind tunnels. The thesis first focuses on the instrumentation and experimental setup to test venting nitrogen gas up to 1550°F and 22,000 psi and to measure thermal stratification in the Heater Vessel. The results of the experiment show the current Heater Vessel is capable of venting nitrogen gas up to 1550°F and 22,000 psi by instrumenting critical locations and leveraging passive cooling. The thesis then focuses on using data from the experiment to design a system that is capable of venting nitrogen gas heated up to 3,400°F and 27,000 psi through the bottom closure of the Heater Vessel

"આધુનિકયુગની કવિતામાં નગરસંસ્કૃતિનું નિરૂપણ" (પ્રતિનિધિ કવિઓના સંદર્ભમાં)

Not availabl

Synthesis of some new quinoxalines bearing pyridinyl thiazole moiety

ABSTRACT. Keeping the objective to build up a new structural class of quinoxaline, a new series of quinoxaline derivatives bearing the pyridinyl thiazole nucleus have been synthesized by basecatalyzed chloro-amine condensation reaction approach. The protocol offers expeditious and easy synthesis with excellent yield. The chemical structures of the synthesized compounds were elucidated by 1 H NMR, 13 C NMR, FT-IR, elemental analysis, and mass spectral data

Isolation and Characterization of Hydrocarbon Degrading Bacterial Isolate from Oil Contaminated Sites

AbstractPolycyclic aromatic hydrocarbons (PAHs) are a class of toxic environmental pollutants that have accumulated in the environment due to a variety of anthropogenic activities. We isolated 14 different bacteria from various petroleum contaminates sites, using enrichment technique, and studied for utilization of various hydrocarbons. The bacteria were capable to grow on various hydrocarbon like diesel, petrol, lubricating oil, toluene, naphthalene and kerosene. The tests were conducted to detect the biodegradation of diesel, by a monooxygenase biodegradation pathway, and it was observed that diesel was degraded within 12hours. Gram negative bacterial isolate RP12 was found to be the best isolate growing on majority of hydrocarbons and degrading diesel

Microwave-assisted multi-component synthesis of 3’-indolyl substituted pyrano[2,3-c]pyrazoles and their antimicrobial activity

A series of pyrano[2,3-c]pyrazole derivatives of indole has been synthesized by multi-component reaction using conventional and microwave irradiation approach. Particularly valuable features of this method include high yield, broad substrate scope, shorter reaction time and straightforward procedure. Antimicrobial screening against eight human pathogens, namely B. subtilis, C. tetani, S. pneumoniae, S. typhi, V. cholerae, E. coli, A. fumigatus and C. albicans by employing broth microdilution MIC method as recommended by NCCLS

Anomalous Quantitation Standard Growth Curves in a Laboratory-Developed Hepatitis C Virus (HCV) RNA Quantification Assay Using the TaqMan HCV Analyte-Specific Reagent▿

A retrospective examination of quantitation standard growth curves associated with 1,000 unique clinical serum specimens tested by a laboratory-developed TaqMan hepatitis C virus analyte-specific reagent-based assay revealed anomalous growth curves associated with 0.40% (95% confidence interval, 0.11% to 1.00%) of these specimens

Primary Apocrine Adenocarcinoma of the Axilla

Primary apocrine adenocarcinoma (AA) is a rare malignant cutaneous neoplasm that typically arises in areas of high apocrine gland density such as the axillae and the anogenital region. Due to the nonspecific clinical manifestation of AA, the differential diagnosis may be broad. The rarity of this neoplasm has led to a relative lack of well-established histologic and immunohistochemical diagnostic criteria, further complicating the diagnosis of AA. We report the case of a 49-year-old man with primary AA of the left axilla and provide a review of the clinical and histologic findings, epidemiology, and treatment modalities of this rare cutaneous neoplasm