Calibratin of Jaguar Aircraft structure retering rig

This document descries the - cali brati'on tests carried out on the fuel flow metering 4• used in fuelling and de-fuelling of. the Jaguar aircraft/Structures 'shop of HAL, Bangalore . The-results of the calibration tests are tabulated and are also shown graphically

Calibration of Jaguar Aircraft Fuel Metering Rig , 1990

This document describes the calibration tests carried out on. The Fuel flo7i metering rig used iii fuelling and de-fuelling of the jag Aircraft of HAL, Bangalore. The results of the calibration tests Are tabulated add are also shown graphicall

Design and Development of an Airblast Atomiser for the KAVERI engine and the sectoral combustor tests

This report deals with the design and development of an airblast atomiser for application in the KAVERI engine. Five atomisers of the chosen design were fabricated and tested at ambient conditions to determine the fuel spray SMD, patternation, cone angle and atomiser flow number. The atomiser performance parameters specified were achieved and hot tests carried out in the 90° combustor sector. The combustor pressure loss, exit temperature distribution, ignition and stability limits were evaluate

Calibration of Pitot static probes for HAL, Koraput

This document explains the calibration procedure adopted to test the pitot-static probes, as required by HAL, Koraput . These probes (16 n.o)s were calibrated in the 254 min x 102 mm induction tunnel of the Aerodynamics Division of the Laboratory . The probe calibration factor were determined and tabulated as show

Normative Study of Brain Stem Auditory Evoked Potentials in Young Adults

ABSTRACT Brain Stem Auditory Evoked Potentials (BAEP) are potentials recorded from ear and vertex in response to brief auditory stimulation to asses conduction through the auditory pathway upto the level of midbrain. BAEP comprises of five or more waves within ten milliseconds of the stimulus and three interpeak latencies. Each individual wave and interpeak latencies provides information about an area of auditory pathway starting with cochlear nerve to the level of inferior colliculi. Recently these potentials have been widely studied in audiology, neurology, neonatology and anaesthesiology. These potentials tend to vary with various ethnic groups. Since India has a widely diverse ethnic population, this study was undertaken to prepare normative data pertaining to local population and normalize the results with variables such as gender and anthropometric measures like head size which could have an effect on these recordings. In this randomized study, 100 normal subjects (50 males and 50 females) were selected. BAEP was recorded using EMG RMS PK II machine. Head measurements were taken with a measuring tape. The results were analyzed by descriptive methods. Males showed greater head measures and greater wave and interpeak latencies than female subjects with a significant p value of less than 0.001. All wave and interpeak latencies were greater in males than in females which could be because of bigger head size measurements in males

Ethmoidal osteoid osteoma with orbital and intracranial extension – a case report

BACKGROUND: Osteoid osteoma is a benign bone neoplasm which is seen in the long bones of appendicular skeleton. It is rarely seen in the cranium. Skull base osteoid osteoma is extremely rare and has been anecdotally reported. CASE PRESENTATION: The authors report a case of a large osteoid osteoma of the ethmoid with intraorbital and intracranial extension in a 33 year old male patient. He presented with loss of vision in the left eye. The intra-cranial extension was excised through a single burr-hole fronto-orbitotomy. The ethmoid and orbital portions were approached and excised through a Weber-Ferguson incision and inferior orbitotomy. Radical excision of the tumor could thus be achieved through a craniofacial approach. CONCLUSION: Although benign and rare, skull base osteoid osteoma can present with neurological deficit due to its mass effect and involvement of vital structures. A multispeciality team approach is advisable in such cases if radical excision is to be achieved. A craniofacial approach made radical single stage excision of this multicompartmental osteoid osteoma possible with an uneventful postoperative period

DISSOLUTION ENHANCEMENT OF DIACEREIN USING WATER SOLUBLE CARRIER BY SOLID DISPERSION TECHNOLOGY

Diacerein is generally used in the treatment of Osteoarthritis , this drug comes under the class anthraquinone. The drug is practically insoluble in water and exhibits exceptionally slow and intrinsic dissolution rate with poor bioavailability. In the present study, diacerein and β-cyclodextrin (β-CD) solid dispersions were prepared with a view to study the effect and influence of β-CD on the solubility and dissolution rate of this poorly aqueous soluble drug. Phase solubility profile revealed that the solubility of diacerein was significantly increased in the presence of β-CD and indicating the possible 1:1 stoichiometric inclusion complex with a stability constant of 339.66 M-1. Effect of variable such as drug: Carrier ratios were studied. Physical characterization of the solid dispersion was characterized by Fourier transform infrared spectroscopy (FT-IR), Differential scanning calorimetry (DSC) and X-ray diffraction studies (XRD). These studies revealed that a distinct loss of drug crystallinity in the solid dispersion is ostensibly accounting for enhancement of dissolution rate in distilled water containing 0.1% Tween 80. The scanning electron microscopy (SEM) study revealed that all the binary systems appeared as agglomerates and exhibiting the presence of a homogenous solid phase which could also be responsible for the enhanced dissolution rate in comparison with the pure drug. The drug release from the prepared solid dispersion exhibited a first order kinetics. Solid dispersion of diacerein showed a 7.66 times fold increase in dissolution rate over the pure drug

The acceptance of the clinical photographic posture assessment tool (CPPAT)

Abstract Background There is a lack of evidence-based quantitative clinical methods to adequately assess posture. Our team developed a clinical photographic posture assessment tool (CPPAT) and implemented this tool in clinical practice to standardize posture assessment. The objectives were to determine the level of acceptance of the CPPAT and to document predictors as well as facilitators of and barriers to the acceptance of this tool by clinicians doing posture re-education. Methods This is a prospective study focussing on technology acceptance. Thirty-two clinician participants (physical therapists and sport therapists) received a 3–5 h training workshop explaining how to use the CPPAT. Over a three-month trial, they recorded time-on-task for a complete posture evaluation (photo - and photo-processing). Subsequently, participants rated their acceptance of the tool and commented on facilitators and barriers of the clinical method. Results Twenty-three clinician participants completed the trial. They took 22 (mean) ± 10 min (SD) for photo acquisition and 36 min ± 19 min for photo-processing. Acceptance of the CPPAT was high. Perceived ease of use was an indirect predictor of intention to use, mediated by perceived usefulness. Analysis time was an indirect predictor, mediated by perceived usefulness, and a marginally significant direct predictor. Principal facilitators were objective measurements, visualization, utility, and ease of use. Barriers were time to do a complete analysis of posture, quality of human-computer interaction, non-automation of posture index calculation and photo transfer, and lack of versatility. Conclusion The CPPAT is perceived as useful and easy to use by clinicians and may facilitate the quantitative analysis of posture. Adapting the user-interface and functionality to quantify posture may facilitate a wider adoption of the tool