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| 1 | Enhanced propellant performance via environmentally friendly curable surface coating显示文摘Surface coating of granular propellants is widely used in a multiplicity of propellants for small, medium and large caliber ammunition. All small caliber ball propellants exhibit burning progressivity due to application of effective deterrent coatings. Large perforated propellant grains have also begun utilizing plasticizing and impregnated deterrent coatings with the purpose of increasing charge weights for greater energy and velocity for the projectile. The deterrent coating and impregnation process utilizes volatile organic compounds(VOCs) and hazardous air pollutants(HAPs) which results in propellants that need to be forced air dried which impacts air quality. Propellants undergo temperature fluctuations during their life. Diffusion coefficients vary exponentially with variations in temperature. A small temperature increase can induce a faster migration, even over a short period of time, which can lead to large deviations in the concentration. This large concentration change in the ammunition becomes a safety or performance liability. The presence of both polymeric deterrents and nitroglycerin(NG) in the nitrocellulose matrix and organic solvents leads to higher diffusion rates. This results in continued emissions of VOCs and HAPs. Conventional polymers tend to partition within the propellant matrix. In other words,localized mixing can occur between the polymer and underlying propellant. This is due to solvent induced softening of the polymer vehicle over the propellant grain. In effect this creates a path where migration can occur. Since nitrate esters, like NG, are relatively small, it can exude to the surface and create a highly unstable and dangerous situation for the warfighter. Curable polymers do not suffer from this partitioning due to 'melting' because no VOC solvents are present. They remain surface coated. The small scale characterization testing, such as closed bomb testing, small scale sensitivity, thermal stability,and chemical compatibility, will be presented. The 30 mm gun demonstration firing data at hot, cold, and ambient temperatures will also be presented. | Thelma Manning Jeffrey Wyckoff Kenneth Klingaman Viral Panchal Eugene Rozumov John Bolognini Ming Wang Young Subhash Patel | 2017 | Defence Technology(防务技术)2017，13，3： | 2 |
| 2 | Synthesis,Optical Spectroscopy and Ultrafast Electron Dynamics of PbS Nanoparticles with Different Surface Capping显示文摘 | Amish a Patel Fanxin Wu Jin Z Zhang Claudia L Torres-Martinez Rajesh K Mehra Yi Yang Subhash H Risbud | 2000 | J Phys Chem B2000，104，11： | 1 |
| 3 | Synthesis and characterization of pH-sensitive hydrogel composed of carboxymethyl chitosan for colon targeted delivery of ornidazole显示文摘 | Subhash S. Vaghani Madhabhai M. Patel C.S. Satish | 2011 | Carbohydrate Research2011，，1： | 1 |
| 4 | Hypoglycemic Activity of Aqueous Extract of Pleurotus pulmonarius . in Alloxan-Induced Diabetic Mice显示文摘 | Sachin L. Badole Shweta N. Shah Naimesh M. Patel Prasad A. Thakurdesai Subhash L. Bodhankar | 2006 | Pharmaceutical Biology2006，，6： | 1 |
| 5 | In vitro antioxidant activities of Stevia rebaudiana leaves and callus显示文摘 | TADHANI M B PATEL V H SUBHASH R | 2007 | Journal of Food Composition and Analysis2007，20，34： | 1 |
| 6 | Integrated self-referencing single shot digital holographic microscope and optical tweezer显示文摘Digital holographic microscopy is a single-shot technique for quantitative phase imaging of samples,yielding thickness profiles of phase objects.It provides sample features based on their morphology,leading to their classification and identification.However,observing samples,especially cells,in fluids using holographic microscopes is difficult without immobilizing the object.Optical tweezers can be used for sample immobilization in fluids.The present manuscript provides an overview of our ongoing work on the development of a compact,low-cost microscopy system for digital holographic imaging of optically trapped samples.Integration of digital holographic microscopy system with tweezers is realized by using the optical pickup unit extracted from DVD burners to trap microsamples,which are then holographically imaged using a highly compact self-referencing interferometer along with a low-cost,in-house developed quadrant photodiode,providing morphological and spectral information of trapped particles.The developed integrated module was tested using polystyrene microspheres as well as human erythrocytes.The investigated system offers a multitude of sample features,including physical and mechanical parameters and corner frequency information of the sample.These features were used for sample classification.The proposed technique has vast potential in opening up new avenues for low-cost,digital holographic imaging and analysis of immobilized samples in fluids and their classification. | Subhash Utadiya Sachin Joshi Nimit Patel Chetna Patel Mugdha Joglekar Vani Cahhniwal Timothy O’Connor Bahram Javidi Arun Anand | 2022 | Light(Advanced Manufacturing)2022，3，3： | 0 |
| 7 | In vitro antioxidant activity of callus culture of carrot (Daucus carom)显示文摘 | Tadhani Manish Patel vinayak Rema Subhash | 2009 | Journal of Agricultural Science and Technology2009，3，12： | 0 |
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