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Search Results: 1 - 10 of 4029 matches for " Shah Akash "
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Design Alteration of Motor-Cycle Engine Cam for Pneumatic Operation
Jimil M. Shah,Akash B. Pandey,Ujjwell Y. Trivedi
International Journal on Theoretical and Applied Research in Mechanical Engineering , 2013,
Abstract: Power produced by pressurized gases/air has been used in many applications since decades. The power produced by that means is pollution free too. Hence substitution of petrol/diesel in engines with compressed air will be a step towards pollution free engine. The 4-stroke IC engine is to be converted into a 2-stroke pneumatic engine. Various design changes in camshaft design were carried out. The valve timing diagram was derived for the same. The cam profile of a double lobed cam as required in the valve timing diagram was designed in Pro-e software and was cut on a wire cut machine. The cam and camshaft were manufactured separately and then assembled.
Clinical features and management of posttraumatic subperiosteal hematoma of the orbit
Kim Usha,Arora Vipul,Shah Akash,Solanki Urvashi
Indian Journal of Ophthalmology , 2011,
Abstract: Traumatic subperiosteal hematoma (SpH) usually presents late, after the initial trauma. It is generally seen in young males. Computed tomography is the best mode of imaging and helps to rule out orbital fracture or associated subdural hematoma. We present the clinical features and management of four patients seen at the orbit clinic with SpH. Management is based on time of presentation, visual acuity and any communicating bleed. The prognosis of traumatic SpH is excellent if treated with an individualized patient approach.
Atypical presentation of an unusual foreign body
Arora Vipul,Kim Usha,Shetty Shashikant,Shah Akash
Indian Journal of Ophthalmology , 2010,
Abstract: A 14-year-old boy presented with intractable diplopia for 10 days following an assault. A thorough history revealed that he was unaware of any penetrating injury. However, imaging demonstrated a radiolucent foreign body between the globe and the orbital floor. On surgical exploration, it was found to be the proximal part of a ball point pen. Its removal resulted in complete resolution of diplopia. Thorough clinical and radiological examination is recommended when a foreign body is suspected in pediatric patients. Prompt diagnosis will aid in early intervention and prevention of long-term complications.
Case report: Ocular malformation with a ′double globe′ appearance
Kim Usha,Arora Vipul,Shah Akash,Srinivasan K
Indian Journal of Radiology and Imaging , 2009,
Abstract: Colobomatous cyst of the orbit is a rare congenital cystic malformation associated with ocular maldevelopment. Usually, the cyst is associated with a microphthalmic globe. We present a rare case of a unilateral large colobomatous cyst associated with a normal-sized globe, giving the appearance of a double globe on imaging.
Simultaneous Estimation of Pantoprazole Sodium and Levosulpiride in Capsule Dosage Form by Simultaneous Equation Spectrophotometric Method
Dimal A. Shah,Akash Patel,Sunil L. Baldania,Usmangani K. Chhalotiya,Kashyap K. Bhatt
ISRN Spectroscopy , 2013, DOI: 10.1155/2013/459820
Abstract: A simple, accurate, and precise spectrophotometric method was developed for simultaneous estimation of pantoprazole sodium and levosulpiride in capsule dosage form. Simultaneous equation was developed at 290 and 232?nm. The method was found to be linear in the range of 4–12?μg/mL for pantoprazole sodium and 8–20?μg/mL for levosulpiride while accuracy of the method was confirmed by recovery studies of capsule dosage form and was found to be 100.23–100.99% and 100.51–100.94% for pantoprazole sodium and levosulpiride, respectively, in their capsule dosage form. The proposed method was validated and found to be accurate and precise. The method was successfully applied for the estimation of pantoprazole sodium and levosulpiride from their capsule dosage form. 1. Introduction Pantoprazole sodium (PNT) is a sodium 5-(difluoromethoxy)-2-[[(3,4-dimethoxy]-2-pyridinyl) methyl]sulfinyl]-1H-benzimidazole [1] (Figure 1); it is a proton pump inhibitor drug used for short-term treatment of erosion and ulceration of the esophagus caused by gastroesophageal reflux disease [2]. It has molecular formula C16H14F2N3NaO4S with molar mass 405.36?g/mol [1]. Levosulpiride (LVS) is an N-[(1-ethyl-2-pyrrolidinyl)methyl]-2-methoxy-5-sulfamoylbenzamide (Figure 2); it is a new orally effective antipsychotic and a prokinetic agent reported to be a selective antagonist of dopamine D2 receptor activity on both central and peripheral levels. It is an atypical neuroleptic (S)-enantiomer of sulpiride having molecular formula C15H23N3O4S with molar mass 341.43?g/mol. Levosulpiride is also claimed to have mood elevating property and used in the treatment of psychoses [3], particularly negative symptoms of schizophrenia, anxiety disorders, dysthymia, vertigo, dyspepsia, irritable bowel syndrome, and premature ejaculation [4]. Figure 1: Structure of pantoprazole sodium. Figure 2: Structure of levosulpiride. The literature review revealed that LC methods [5, 6] have been reported for the estimation of PNT. Various RP-LC methods have been reported for the estimation of PNT in combination with domperidone [7] and naproxen [8, 9], respectively. Derivative spectrophotometric method has been reported for the estimation of LVS in tablet dosage form [10]. Simultaneous estimation of LVS and esomeprazole by UV spectrometry has been reported [11]. LC method has been reported for estimation of LVS from human plasma [12]. LC method have been reported for the estimation of LVS in combination with esomeprazole [13] and rabeprazole [14, 15], respectively. RP-LC method has been reported for the estimation of
Galilean Anomalies and Their Effect on Hydrodynamics
Akash Jain
Physics , 2015,
Abstract: We extend the null background construction of [arXiv:1505.05677,arXiv:1509.04718] to include torsion and a conserved spin current, and use it to study gauge and gravitational anomalies in Galilean theories coupled to torsional Newton-Cartan backgrounds. We establish that the relativistic anomaly inflow mechanism with an appropriately modified anomaly polynomial, can be used to generate these anomalies. Similar to relativistic case, we find that Galilean anomalies also survive only in even dimensions. Further, these anomalies only effect the gauge and rotational symmetries of a Galilean theory; in particular the Milne boost symmetry remains non-anomalous. We also extend the transgression machinery used in relativistic fluids to fluids on null backgrounds, and use it to determine how these anomalies affect the constitutive relations of a Galilean fluid. Unrelated to Galilean fluids, we propose an analogue of the off-shell second law of thermodynamics for relativistic fluids introduced by [arXiv:1106.0277], to include torsion and a conserved spin current in Vielbein formalism. Interestingly, we find that even in absense of spin and torsion the entropy currents in two formalisms are different; while the usual entropy current gets a contribution from gravitational anomaly, the entropy current in Vielbein formalism does not have any anomaly induced part.
RNAi Mediated Drought and Salinity Stress Tolerance in Plants  [PDF]
Akash Pradhan, Nupur Naik, Khirod Kumar Sahoo
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.612200
Abstract: RNAi mediated gene silencing demonstrated to serve as a defence mechanism against abiotic stress. Some endogenous small RNAs (microRNA and siRNA) have emerged as important players in plant abiotic stress response. Drought and salinity are the major environmental stresses that limit the agricultural food production. miRNA involved in drought and salinity stress response, including ABA response, auxin signalling, osmoprotection and antioxidant defence by downregulating the response target gene. It is observed that some of the microRNAs are upregulated or downregulated in response to drought and salt stress. We reviewed that miR167, miR393, mir474, miR169g are upregulated whereas miR168, miR396, miR397 are downregulated in rice plant during drought stress. Moreover, our detail categorical analysis on the basis of mechanism of action found that miRNA involved in drought stress was 28% in ABA signalling and response, 14.2% in auxin signalling, 9.52% in miRNA processing, 14.2% in cell growth, 9.52% in antioxidant defence, 4.76% in CO2 fixation and 9.52% in osmotic adjustment. Similarly, miRNA involved in salinity stress was 5.8% in auxin signalling, 23.5% in vegetative phase change and root, shoot, leaf and vascular development, 11.76% in gynoecium and stamens development, 8.82% in metabolic adaptation, 2.74% in early embryogenesis and 41.17% not known. Importantly, some common miRNAs such as miR159, miR167, miR169, miR393 and miR397 play an important role in both drought and salinity stress conditions. Here, in this review, we mainly focused on the current status of miRNAs, mechanism of action and their regulatory network during drought and salinity stress in plants.
A Noble Approach of Process Automation in Galvanized Nut, Bolt Manufacturing Industry
Akash Samanta,Arindam Dutta
IAES International Journal of Robotics and Automation (IJRA) , 2012, DOI: 10.11591/ijra.v1i2.346
Abstract: Corrosion costs money”, The Columbus battle institute estimates that corrosion costs Americans more than $ 220 billion annually, about 4.3% of the gross natural product [1].Now a days due to increase of pollution, the rate of corrosion is also increasing day-by-day mainly in India, so, to save the steel structures, galvanizing is the best and the simplest solution. Due to this reason galvanizing industries are increasing day-by-day since mid of 1700s.Galvanizing is a controlled metallurgical combination of zinc and steel that can provide a corrosion resistance in a wide variety of environment. In fact, the galvanized metal corrosion resistance factor can be some 70 to 80 times greater that the base metal material. Keeping in mind the importance of this industry, a noble approach of process automation in galvanized nut-bolt manufacturing plant is presented here as nuts and bolts are the prime ingredient of any structure. In this paper the main objectives of any industry like survival, profit maximization, profit satisfying and sales growth are fulfilled. Furthermore the environmental aspects i.e. pollution control and energy saving are also considered in this paper. The whole automation process is done using programmable logic controller (PLC) which has number of unique advantages like being faster, reliable, requires less maintenance and reprogrammable. The whole system has been designed and tested using GE, FANUC PLC.
Achieving Open-loop Insulin Delivery using ITM Designed for T1DM Patients
Akash Rajak,Kanak Saxena
International Journal of Computer Network and Information Security , 2012,
Abstract: To simulate the glucose-insulin concentration of type 1 diabetic patient an Intelligent Temporal Mediator (ITM) has been designed. The ITM integrates the tasks of temporal reasoning and temporal maintenance. The paper discusses the design of ITM reasoning system which was based on open-loop insulin delivery technique. The result shows that ITM successfully models the blood glucose profile of the diabetic patient. The designed ITM is also compared with existing open-loop simulator for checking its performance.
Image Restoration Using Thresholding Techniques on Wavelet Coefficients
Rubeena Vohra,Akash Tayal
International Journal of Computer Science Issues , 2011,
Abstract: Image restoration from corrupted image is a classical problem in the field of image processing. Additive random noise can easily be removed using simple threshold methods with linear and non-linear filtering techniques. De-noising of natural images corrupted by Gaussian noise using wavelet techniques is very effective because of its ability to capture the energy of a signal in few energy transform values. The wavelet de-noising scheme thresholds the wavelet coefficients arising from the standard discrete wavelet transform. In this paper, it is proposed to investigate the suitability of different wavelet bases and the decomposition levels on the performance of image de-noising algorithms in terms of peak signal -to- noise ratio.
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