1,276 research outputs found
Effect of carbon dioxide on the performance of Spark Ignition Engine by Hydrogen Inject with Biogas Fuel
No full textMethane and carbon dioxide are the two main constituents of biogas. One of the reasons of poor combustion is the presence of carbon dioxide in the biogas. Biogas also has traces of nitrogen, hydrogen, oxygen and hydrogen sulphide. Because of a high investment cost and a heavy infrastructure, only fifty percent of the biogas production upgrades decrease CO2 by use of water scrubber. so the natural gas replacement is very low. This experiment is conducted on modified single cylinder 97.5cc petrol engine, to work it as a biogas hydrogen fuel spark ignition engine. Hydrogen added in small amounts by HHO generator hydroxy kit to decrease concentration of CO2 in biogas power and find out the effect of CO2 on the performance. The experimental results show that the large quantity of CO2 present in biogas lowers its calorific value, flame velocity and flammability range compared with natural gas. So it can be utilized in an IC engine with the hydrogen. Keyur D. Patel "Effect of carbon dioxide on the performance of Spark Ignition Engine by Hydrogen Inject with Biogas Fuel" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: https://www.ijtsrd.com/papers/ijtsrd12839.pd
The New Deal : A Global History /
No full textThe New Deal: A Global History provides a radically new interpretation of a pivotal period in US history. The first comprehensive study of the New Deal in a global context, the book compares American responses to the international crisis of capitalism and democracy during the 1930s to responses by other countries around the globe-not just in Europe but also in Latin America, Asia, and other parts of the world. Work creation, agricultural intervention, state planning, immigration policy, the role of mass media, forms of political leadership, and new ways of ruling America's colonies-all had parallels elsewhere and unfolded against a backdrop of intense global debates.By avoiding the distortions of American exceptionalism, Kiran Klaus Patel shows how America's reaction to the Great Depression connected it to the wider world. Among much else, the book explains why the New Deal had enormous repercussions on China; why Franklin D. Roosevelt studied the welfare schemes of Nazi Germany; and why the New Dealers were fascinated by cooperatives in Sweden-but ignored similar schemes in Japan.Ultimately, Patel argues, the New Deal provided the institutional scaffolding for the construction of American global hegemony in the postwar era, making this history essential for understanding both the New Deal and America's rise to global leadership.The New Deal: A Global History provides a radically new interpretation of a pivotal period in US history. The first comprehensive study of the New Deal in a global context, the book compares American responses to the international crisis of capitalism and democracy during the 1930s to responses by other countries around the globe-not just in Europe but also in Latin America, Asia, and other parts of the world. Work creation, agricultural intervention, state planning, immigration policy, the role of mass media, forms of political leadership, and new ways of ruling America's colonies-all had parallels elsewhere and unfolded against a backdrop of intense global debates.By avoiding the distortions of American exceptionalism, Kiran Klaus Patel shows how America's reaction to the Great Depression connected it to the wider world. Among much else, the book explains why the New Deal had enormous repercussions on China; why Franklin D. Roosevelt studied the welfare schemes of Nazi Germany; and why the New Dealers were fascinated by cooperatives in Sweden-but ignored similar schemes in Japan.Ultimately, Patel argues, the New Deal provided the institutional scaffolding for the construction of American global hegemony in the postwar era, making this history essential for understanding both the New Deal and America's rise to global leadership.Mode of access: Internet via World Wide Web.Description based on online resource; title from PDF title page (publisher's Web site, viewed 08. Jul 2019
Evaluation of the Tauc Method for Optical Absorption Edge Determination: ZnO Thin Films as a Model System
No full textOne of the most frequently used methods for characterizing thin films is UV-Vis absorption. The near-edge region can be fitted to a simple expression in which the intercept gives the band-gap and the fitting exponent identifies the electronic transition as direct or indirect. (See Tauc et al., Physica Status Solidi, 1966; these are often called “Tauc” plots.) While the technique is powerful and simple, the accuracy of the fitted band-gap result is seldom stated or known. We tackle this question by refitting a large number of Tauc plots from the literature and look for trends. Nominally pure zinc oxide (ZnO) was chosen as a material with limited intrinsic deviation from stoichiometry and which has been widely studied. Our examination of the band gap values and their distribution leads to a discussion of some experimental factors that can bias the data and lead to either smaller or larger apparent values than would be expected. Finally, an easily evaluated figure-of-merit is defined that may help guide more accurate Tauc fitting. For samples with relatively sharper Tauc plot shapes, the population yields Eg (ZnO) as 3.276 +/- 0.033 eV, in good agreement with data for single crystalline material.This is the accepted version of the following article: Viezbicke, B. D., Patel, S., Davis, B. E. and Birnie, D. P. (2015), Evaluation of the Tauc method for optical absorption edge determination: ZnO thin films as a model system. Phys. Status Solidi B, 252: 1700–1710, which has been published in final form at https://dx.doi.org/10.1002/pssb.201552007.Peer reviewe
Methodological advances for the measurement of the D-amino acids across the metazoa: From mollusks to man
No full textThe amino acids are a class of biomolecules which is obligatory to terrestrial life, alongside nucleic acids, fatty acids and monosaccharides. The amino acids, with the exception of glycine, are chiral molecules which exist as either L- or D-amino acids. Although identical with regard to physical and chemical properties, the enantiomeric forms rotate plane-polarized light in opposite directions. The difference in stereoconfiguration of D- and L-amino acids can impact their biochemical properties, as a consequence of differential interactions with other chiral biomolecules, often leading to substantial differences in physiological significance.
Originally, the L-amino acids and D-sugars were considered to be isomeric forms naturally present in living systems, often referred to as the homochirality of life. Over time, in the wake of measurements of D-amino acids in bacteria and animals dating back to the mid-1900s, the idea of the homochirality of life was adapted to state that chiral biomolecules exist almost exclusively in one enantiomeric form. After several decades of research, it is now evident that the D-amino acids are found in every domain of life (Archaea, Bacteria and Eukarya). Beyond their ubiquitous presence, a few D-amino acids have been demonstrated to act as cell-to-cell transmitters and functional roles in the central nervous and endocrine systems have been uncovered.
In spite of great progress made in our understanding of the D-amino acids in nature over the past several decades, many questions remain regarding the D-amino acids, the complement of proteins involved in their production, transduction, transport and degradation as well as functional importance. These gaps in knowledge emanate from the analytical challenges in D-amino acids measurement. Beyond the conventional challenges of bioanalytical chemistry, analyzing the D-amino acids requires approaches which can discriminate on the basis of chirality as well as overcome the challenges presented by heterogeneous distribution and low abundance. Herein described is a body of work relating to methodological advances to facilitate the analysis of the D-amino acids as well as the characterization of D-amino acids in cells and tissues from the central nervous and endocrine systems of animals, from mollusks to man.
Regarding the goal of developing approaches for D-amino acid analysis, chiral separations involving capillary electrophoresis and liquid chromatography have been developed and characterized. Capillary electrophoresis paired with laser-induced fluorescence was leveraged for single cell analysis, and an online sample preconcentration method was developed for further enhancement of sensitivity. Liquid chromatography couple with mass spectrometry was used for the measurement of the D-amino acids as well as the execution of pulse-chase experiments. Additionally, protocols for the extraction, purification and derivatization of the D-amino acids have been explored. Together, these methodological advances were paired with experiment design and targeted sampling in order to characterize the D-amino acids in the central nervous and endocrine systems.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-05-01The student, Amit Patel, accepted the attached license on 2018-04-05 at 09:37.The student, Amit Patel, submitted this Dissertation for approval on 2018-04-05 at 09:44.This Dissertation was approved for publication on 2018-04-06 at 15:56.DSpace SAF Submission Ingestion Package generated from Vireo submission #12129 on 2018-08-31 at 17:18:12Made available in DSpace on 2018-09-04T20:33:58Z (GMT). No. of bitstreams: 4
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Selected topics in interventional radiology: a compendium of student honors papers on the Interventional radiology elective
No full textThis book is a collaborative effort with medical students from the Rutgers/Robert Wood Johnson Medical School, previously Robert Wood Johnson Medical School. The students contributed chapters written as honors papers,while on their Interventional Radiology elective. This publication is not meant to completely cover the ever expanding realm of interventional radiology but includes topics of interest to the students while on their elective. It has been rewarding to work with these amazing students, many of whom have elected to practice diagnostic and interventional radiology. This work was supported by a small grant from the Rutgers Library to create affordable books. As it is self published please overlook minor flaws.
The newest area of interventional radiology, interventional oncology, will be covered in subsequent chapters as they are written. As with other dynamic fields of medicine some material becomes outdated soon after it is written. As this is an electronic publication we will strive to update chapters as required.Central venous access in interventional radiology / Daniel Haddad, Mary-Katherine Lynch
Image -guided percutaneous needle biopsy / Ross Cadman
Image -guided percutaneous
abscess drainage of abdominal and pelvic abscess / Zaeem Billah, Dhaval Mehta
Interventional radiology approaches for the treatment of refractory ascites / Travis R. Quinoa
Radial artery access in interventional radiology / Lauren A. Huntress
Segmental arterial mediolysis / Julian Sison
Hemodialysis vascular access, complications, and interventional treatment / Pierre Saad
Non-operative management of splenic injury / Ulyana Trytko
Management of splenic artery aneurysm with coil embolization / Henal Patel
The use of arterial embolization in pelvic trauma / Henal Patel, Rima Patel
Management of massive hemoptysis with bronchial artery embolization / Shreya Amin
Minimally invasive approach
to treating renal angiomyolipoma / Adam Zybulewski
Pulmonary arteriovenous malformations / Ripal Patel, Michael Chevinsky
Radiologic and endoscopic percutaneous gastrostomy: a review of the literature / Fernando D. Arias
Treatment of benign bile duct strictures by balloon dilitation and stent placement / Jason Feinman
Transjugular liver biopsy / Oluwatoyin Dada
Point shear/wave liver elastography / Eric Wei
Renal artery stenosis: medical management vs. percutaneous revascularization / Adjoa Boateng, Gregg Khodorov
Minimally invasive treatment of intrahepatic cholangiocarcinoma / Jaclyn N. Portelli Tremont
Vena cava filters
and the treatment of pulmonary embolism / Anushree Doshi
Interventional treatment of pulmonary embolism / Matthew Deek
Percutaneous access for nephrostomy and nephro-lithotomy / Prasann Vachhani
Portal vein embolization and hepatic hypertrophy / Kristin Maletsky
THe role of interventional radiology in upper GI and colonic hemorrhage
contemporary management and outcomes / Slavamir Sokalaw
Small intestinal bleeding / Oren Johnson
Gastrointestinal hemorrhage aorto-enteric fistula / Hansol Kim
Management of non-variceal upper gastrointestinal bleeding in patients with liver cirrhosis / Vikram Rajpurohit
Transjugular intrahepatic portosystemic shunt / Na Eun Kim
Review and analysis of balloon-occluded retrograde transvenous obliteration (BRTO ) vs. transjugular intrahepatic porto-systemic shunt (TIPS) procedures as a treatment for gastric varices / Iqra Farooqi , Kiersten Frenchu
The value of multi-detector helical CT (MDCT) scans in evaluating acute gastro-intestinal bleeding"September 2020
Modeling and simulation of a CubeSat with dual electric propulsion systems
No full textSubmission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01The student, Ravi Patel, accepted the attached license on 2021-12-08 at 15:29.The student, Ravi Patel, submitted this Thesis for approval on 2021-12-08 at 18:03.This Thesis was approved for publication on 2021-12-10 at 08:53.DSpace SAF Submission Ingestion Package generated from Vireo submission #17421 on 2022-04-06 at 17:18:03Made available in DSpace on 2022-04-29T21:47:46Z (GMT). No. of bitstreams: 2
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Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I OnlyThe CubeSat mission analysis presented here is related to the Dual-Propulsion Experiment (DUPLEX) CubeSat in development by CUAerospace (CUA), with partners at the University of Illinois at Urbana- Champaign, NearSpace Launch, and NanoRacks. This CubeSat features two novel electric propulsion systems designed for use in CubeSats. This thesis presents the pre-flight technical analysis performed to determine the capabilities and limitations of these new propulsion systems. In this study, the theory behind modeling low thrust trajectories for CubeSats is presented. This theory, implemented in high-fidelity thruster performance simulations, was used to develop and test mission profiles for the DUPLEX mission. The results are being shared with the NASA International Space Station operations personnel to assure safe and compatible operations of DUPLEX after deployment from ISS. Through this investigation, the capabilities and limitations of these two new electric propulsion systems for CubeSats have been determined
Inclusive decays B->DX and B->D*X
No full textComplete Author List: Gibbons L, Johnson SD, Kwon Y, Roberts S, Thorndike EH, Jessop CP, Lingel K, Marsiske H, Perl ML, Schaffner SF, Ugolini D, Wang R, Zhou X, Coan TE, Fadeyev V, Korolkov I, Maravin Y, Narsky I, Shelkov V, Staeck J, Stroynowski R, Volobouev I, Ye J, Artuso M, Efimov A, Frasconi F, Gao M, Goldberg M, He D, Kopp S, Horwitz N, Moneti GC, Mountain R, Mukhin Y, Schuh S, Skwarnicki T, Stone S, Thulasidas M, Viehhauser G, Xing X, Bartelt J, Csorna SE, Jain V, Marka S, Freyberger A, Godang R, Kinoshita K, Lai IC, Pomianowski P, Schrenk S, Bonvicini G, Cinabro D, Greene R, Perera LP, Barish B, Chadha M, Chan S, Eigen G, Miller JS, OGrady C, Schmidtler M, Urheim J, Weinstein AJ, Wurthwein F, Asner DM, Bliss DW, Brower WS, Masek G, Paar HP, Sharma V, Gronberg J, Kutschke R, Lange DJ, Menary S, Morrison RJ, Nelson HN, Nelson TK, Qiao C, Richman JD, Roberts D, Ryd A, Witherell MS, Balest R, Behrens BH, Cho K, Ford WT, Park H, Rankin P, Roy J, Smith JG, Alexander JP, Bebek C, Berger BE, Berkelman K, Bloom K, Cassel DG, Cho HA, Coffman DM, Crowcroft DS, Dickson M, Drell PS, Ecklund KM, Ehrlich R, Elia R, Foland AD, Gaidarev P, Gittelman B, Gray SW, Hartill DL, Heltsley BK, Kandaswamy J, Katayama N, Kim PC, Kreinick DL, Lee T, Liu Y, Ludwig GS, Masui J, Mevissen J, Mistry NB, Ng CR, Nordberg E, Ogg M, Patterson JR, Peterson D, Riley D, Soffer A, Ward C, Athanas M, Avery P, Jones CD, Lohner M, Prescott C, Yang S, Yelton J, Zheng J, Brandenburg G, Briere RA, Gao YS, Kim DYJ, Wilson R, Yamamoto H, Browder TE, Li F, Li Y, Rodriguez JL, Bergfeld T, Eisenstein BI, Ernst J, Gladding GE, Gollin GD, Hans RM, Johnson E, Karliner I, Marsh MA, Palmer M, Selen M, Thaler JJ, Edwards KW, Bellerive A, Janicek R, MacFarlane DB, McLean KW, Patel PM, Sadoff AJ, Ammar R, Baringer P, Bean A, Besson D, Coppage D, Darling C, Davis R, Hancock N, Kotov S, Kravchenko I, Kwak N, Anderson S, Kubota Y, Lattery M, ONeill JJ, Patton S, Poling R, Riehle T, Savinov V, Smith A, Alam MS, Athar SB, Ling Z, Mahmood AH, Severini H, Timm S, Wappler F, Anastassov A, Blinov S, Duboscq JE, Fisher KD, Fujino D, Fulton R, Gan KK, Hart T, Honscheid K, Kagan H, Kass R, Lee J, Spencer MB, Sung M, Undrus A, Wanke R, Wolf A, Zoeller MM, Nemati B, Richichi SJ, Ross WR, Skubic P, Wood M, Bishai M, Fast J, Gerndt E, Hinson JW, Menon N, Miller DH, Shibata EI, Shipsey IPJ, Yurko M</p
Direct Production of Graphene Nanosheets for Near Infrared Photoacoustic Imaging.
No full textHummers method is commonly used for the fabrication of graphene oxide (GO) from graphite particles. The oxidation process also leads to the cutting of graphene sheets into small pieces. From a thermodynamic perspective, it seems improbable that the aggressive, somewhat random oxidative cutting process could directly result in graphene nanosheets without destroying the intrinsic π-conjugated structures and the associated exotic properties of graphene. In Hummers method, both KMnO4 and NO2þ (nitronium ions) in concentrated H2SO4 solutions act as oxidants via different oxidation mechanisms. From both experimental observations and theoretical calculations, it appears that KMnO4 plays a major role in the observed oxidative cutting and unzipping processes. We find that KMnO4 also limits nitronium oxidative etching of graphene basal planes, therefore slowing down graphene fracturing processes for nanosheet fabrication. By intentionally excluding KMnO4 and exploiting pure nitronium ion oxidation, aided by the unique thermal and kinetic effects induced by microwave heating, we find that graphite particles can be converted into graphene nanosheets with their π-conjugated aromatic structures and properties largely retained. Without the need of any postreduction processes to remove the high concentration of oxygenated groups that results from Hummers GO formation, the graphene nanosheets as-fabricated exhibit strong absorption, which is nearly wavelength-independent in the visible and near-infrared (NIR) regions, an optical property typical for intrinsic graphene sheets. For the first time, we demonstrate that strong photoacoustic signals can be generated from these graphene nanosheets with NIR excitation. The photo-to-acoustic conversion is weakly dependent on the wavelength of the NIR excitation, which is different from all other NIR photoacoustic contrast agents previously reported.This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in ACS Nano, copyright © American Chemical Society after peer review. To access the final edited and published work see https://dx.doi.org/10.1021/nn403429v
Measurement of the B̄→D*lν̄ branching fractions and -Vcb-
No full textcomplete author list:
Barish B.; Chadha M.; Chan S.; Cowen D.; Eigen G.; Miller J.; O'Grady C.; Urheim J.; Weinstein A.; Acosta D.; Athanas M.; Masek G.; Paar H.; Gronberg J.; Kutschke R.; Menary S.; Morrison R.; Nakanishi S.; Nelson H.; Nelson T.; Qiao C.; Richman J.; Ryd A.; Tajima H.; Sperka D.; Witherell M.; Procario M.; Balest R.; Cho K.; Daoudi M.; Ford W.; Johnson D.; Lingel K.; Lohner M.; Rankin P.; Smith J.; Alexander J.; Bebek C.; Berkelman K.; Bloom K.; Browder T.; Cassel D.; Cho H.; Coffman D.; Crowcroft D.; Drell P.; Ehrlich R.; Gaidarev P.; Galik R.; Garcia-Sciveres M.; Geiser B.; Gittelman B.; Gray S.; Hartill D.; Heltsley B.; Jones C.; Jones S.; Kandaswamy J.; Katayama N.; Kim P.; Kreinick D.; Ludwig G.; Masui J.; Mevissen J.; Mistry N.; Ng C.; Nordberg E.; Patterson J.; Peterson D.; Riley D.; Salman S.; Sapper M.; Würthwein F.; Avery P.; Freyberger A.; Rodriguez J.; Yang S.; Yelton J.; Cinabro D.; Henderson S.; Liu T.; Saulnier M.; Wilson R.; Yamamoto H.; Bergfeld T.; Eisenstein B.; Gollin G.; Ong B.; Palmer M.; Selen M.; Thaler J.; Edwards K.; Ogg M.; Bellerive A.; Britton D.; Hyatt E.; MacFarlane D.; Patel P.; Spaan B.; Sadoff A.; Ammar R.; Ball S.; Baringer P.; Bean A.; Besson D.; Coppage D.; Copty N.; Davis R.; Hancock N.; Kelly M.; Kotov S.; Kravchenko I.; Kwak N.; Lam H.; Kubota Y.; Lattery M.; Momayezi M.; Nelson J.; Patton S.; Perticone D.; Poling R.; Savinov V.; Schrenk S.; Wang R.; Alam M.; Kim I.; Nemati B.; Ling Z.; O'Neill J.; Severini H.; Sun C.; Wappler F.; Crawford G.; Daubenmier C.; Fulton R.; Fujino D.; Gan K.; Honscheid K.; Kagan H.; Kass R.; Lee J.; Malchow R.; Skovpen Y.; Sung M.; White C.; Zoeller M.; Butler F.; Fu X.; Kalbfleisch G.; Ross W.; Skubic P.; Wood M.; Fast J.; Mcilwain R.; Miao T.; Miller D.; Modesitt M.; Payne D.; Shibata E.; Shipsey I.; Wang P.; Battle M.; Ernst J.; Gibbons L.; Kwon Y.; Roberts S.; Thorndike E.; Wang C.; Dominick J.; Lambrecht M.; Sanghera S.; Shelkov V.; Skwarnicki T.; Stroynowski R.; Volobouev I.; Wei G.; Zadorozhny P.; Artuso M.; Goldberg M.; He D.; Horwitz N.; Kennett R.; Mountain R.; Moneti G.; Muheim F.; Mukhin Y.; Playfer S.; Rozen Y.; Stone S.; Thulasidas M.; Vasseur G.; Xing X.; Zhu G.; Bartelt J.; Csorna S.; Egyed Z.; Jain V.; Gibaut D.; Kinoshita K.; Kinoshita K.; Barish B
Measurement of the D+/- production asymmetry in 7 TeV pp collisions
No full textThe asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T within the acceptance of the LHCb detector. The result is obtained with a sample of D+ -> K_S pi+ decays corresponding to an integrated luminosity of 1.0 fb^-1, collected in pp collisions at a centre of mass energy of 7 TeV at the Large Hadron Collider. When integrated over the kinematic range 2.0 K_S pi+ decay is negligible. No significant dependence on \eta or p_T is observed
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