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Measurement Analysis in Electrochemical Discharge Machining （ECDM） Process： A Literature Review

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Journal of Chemistry and Chemical Engineering 2015年第2期9卷 140-144页

作者： pravin pawar Raj Ballav Amaresh Kumar Department of Manufacturing Engineering National Institute of Technology Jamshedpur 831014 India

Electrochemical discharge machining is considered to be a hybrid machining process that combines with EDM and ECM (electro chemical machining), called ECDM. The material removal is based on two phenomena: electrochemical dissolution of the material and thermal erosion of electrical discharges that occur between the cathode & anode electrodes. This process is better used for machining of non conducting materials efficiently. In this research paper shows that a brief literature review study of various measuring instruments used for analysis of various parameters of the electrochemical discharge machining process on various types of materials, tool material, input & output parameters such as surface roughness, surface texture, material removal, tool wear etc.

关键词：电化学加工放电加工文献综述测量分析材料去除加工过程电化学溶解非导电材料

Minimal Hepatic Encephalopathy in Indians:Psychometric Hepatic Encephalopathy Score and Inhibitory Control Test for Diagnosis and Rifaximin or Lactulose for Its Reversal

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Journal of Clinical and Translational Hepatology 2019年第4期7卷 304-312页

作者： Vinay B.pawar Ravindra G.Surude Nikhil Sonthalia Vinay Zanwar Samit Jain Qais Contractor pravin M.Rathi Department of Gastroenterology Topiwala National Medical College and BYL Ch HospitalMumbaiMaharashtraIndia

Background and Aims: Psychometric hepatic encephalop-athy score(PHES)is used widely for diagnosis of minimal hepatic encephalopathy(MHE).This prospective study aimed to determine the utility of the inhibitory control test(ICT)for the diagnosis of ***,the efficacy of rifaximin and lactulose for reversal of MHE was ***:A total of 180 eligible cirrhotic patients underwent testing for *** PHES was ≤ ?5 and ICT lures were ≥ 14,MHE was *** 108 patients with MHE were randomized to three groups for treatment with either lactulose,rifaximin,or *** outcomes were measured at the end of 3 ***: The 108 patients with MHE diagnosed by PHES and/or ICT accounted for 60%.The diagnosis of MHE was made by both ICT and PHES positivity in 56 patients,by abnormal ICT and normal PHES in 37 patients,and by abnor-mal PHES and normal ICT in 15 *** diagnosis of MHE,ICT had sensitivity of 78.87%,specificity of 66.06%with 60.22%positive predictive value and 82.76%negative predictive *** area under the curve value of 0.724(95%CI: 0.653–0.788)was obtained for diagnosis of *** of MHE was seen in 71.42%,70.27%and 11.11%of patients in the rifaximin,lactulose and placebo arms(p < 0.001).Rifaximin showed better tolerability compared to ***: For the diagnosis of MHE,ICT is a simple tool but has lower sensitivity and better specificity than *** is as efficacious as lactulose in the treat-ment of MHE and better tolerated.

关键词： Minimal hepatic encephalopathy ICT PHES Indians Lactulose Rifaximin

Studies in Effect of Low Concentration of Cenosphere on Mechanical, Thermal, Electrical, Crystallinity, Colorimetric and Morphological Properties of Epoxy Cured with Triethylenetetramine

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Journal of Minerals and Materials Characterization and Engineering 2013年第4期1卷 117-123页

作者： pravin Kadam Bhushan pawar Shashank Mhaske Department of Polymer Engineering Institute of Chemical Technology Mumbai India

Cenospheres are produced in very large amount in thermal power plants. They are always looked upon as fillers used to reduce the density and cost of the polymer. If cenosphere particles are allowed to remain properly dispersed by taking it in lower concentration, significant improvement in its mechanical, thermal, electrical, crystallinity, colorimetric and morphological properties are expected. To make it happen, epoxy/cenosphere composites were prepared, having lower concentration of cenosphere. Concentration of cenosphere in epoxy, cured with triethylenetetramine, was changed as 0, 3, 5, 7 and 10. Tensile Strength, Tensile Modulus, Percentage Elongation at Break and Crystallinity decreased, whereas, Flexural Strength and Flexural Modulus were found to have increased by 50% and above 100% respectively at 7 phr loading of cenosphere in epoxy. Thermal and electrical stability also increased with increase in concentration of cenosphere in the epoxy, however, the samples became blackish with increased addition of cenosphere. Using SEM analysis it was found that, cenospheres were properly and uniformly dispersed at 7 phr concentration and formed aggregates at 10 phr concentration.

关键词： Triethylenetetramine Epoxy Cenosphere Crystallinity Electrical Thermal Tensile Strength

砂壤土中前进速度和耕作深度对主要耕作机械牵引的影响(摘选)

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农业工程 2014年第2期4卷 110-111页

作者： Sachin V Wandkar pravin P Jadhav Babasaheb S Gholap Vikas V Gonjari Shashikant G pawar 农业科技王公普拉塔普大学工程技术学院农业机械与动力工程系

对一些有特殊要求的农场来说,耕作机具牵引需求数据的有效性对于选择适当的耕作机具是极为重要的。机具宽度、作业深度、前进速度、土壤情况和机具机型都影响着机具的牵引。利用放置在砂壤土中的数字荷重单元对不同前进速度(0.69、1.11... 详细信息

对一些有特殊要求的农场来说,耕作机具牵引需求数据的有效性对于选择适当的耕作机具是极为重要的。机具宽度、作业深度、前进速度、土壤情况和机具机型都影响着机具的牵引。利用放置在砂壤土中的数字荷重单元对不同前进速度(0.69、1.11和1.52 ms)和耕作深度(100、150和200 mm),两种主要耕作机械牵引的影响进行了研究。采用的工具包括3个底圆盘犁和2个底型铧式犁。在两种方案中,速度和深度都随着工具牵引增加而增加。所有的工具牵引对深度的影响大于对速度的影响。在所有的前进速度和耕作深度的处理中,铧式犁的测量值均大于圆盘犁。基于速度和深度,对两种特殊牵引模拟了一般回归方程。

关键词：砂壤土速度深度牵引主要耕作机械

Unusual complication of amebic liver abscess: Hepatogastric fistula

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World Journal of Gastrointestinal Endoscopy 2015年第9期7卷 916-919页

作者： Sunil V pawar Vinay G Zanwar Pravir A Gambhire Ashok R Mohite Ajay S Choksey pravin M Rathi Dileep S Asgaonkar Department of Gastroenterology 7th floor OPD building Topiwala National Medical College and Bai Yamunabai Laxman Nair HospitalMumbai Central Department of Medicine 1st floor College buildingTopiwala National Medical College and Bai Yamunabai Laxman Nair HospitalMumbai Central

Amebic liver abscess is a parasitic disease which is often encountered in tropical countries. A hepatogastric fistula secondary to an amebic liver abscess is a rare complication of this disease and there are only a handful of reported cases in literature. Here we present a case of an amebic liver abscess which was complicated with the development of a hepatogastric fistula. The patient presented with the Jaundice, pain and distension of abdomen. The Jaundice and pain improved partially after he had an episode of brownish black colored increase in frequency of stools for 5 to 6 d. Patient also had ascites and anemia. He was a chronic alcohol drinker. Esophagogastroduodenoscopy performed in view of the above findings. It showed a fistulous opening with bilious secretions along the lesser curvature of the stomach. On imaging multiple liver abscesses seen including one in sub capsular location. The patient was managed conservatively with antiamebic medications along with proton pump inhibitors. The pigtail drainage of the sub capsular abscess was done. The patient improved significantly. The repeat endoscopy performed after about two months showed reduction in fistula size. A review of the literature shows that hepatogastric fistulas can be managed conservatively with medications and drainage, endoscopically with biliary stenting or with surgical excision.

关键词： Amebic liver abscess Hepatogastric fistula Esophagogastroduodenoscopy Entaameba histolytica Ultrasonography Computed tomography