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High Security Identity Tags Using Spiral Resonators

Computers, Materials & Continua 2016年第6期 187-197页

作者： Anju Pradeep S.mridula P.Mohanan School of Engineering Cochin University of Science and TechnologyKeralaIndia Department of Electronics Cochin University of Science and TechnologyKeralaIndia

A highly compact chipless tag based on Frequency coding technique using Spiral Resonators is proposed in this *** are well known metamaterial structures and thus capable of sharp resonance,and hence Spiral Resonators can serve as a good candidate for RF Identity *** bit capacity of the proposed tag is 10 bits per *** prototype of the tag is fabricated on a low-cost substrate of dielectric constant 4.4 and loss tangent *** overall dimension of tag is 15.4 x 3 x *** methods for reading the tags are also discussed in this *** for bit enhancement is also provided.

关键词： High security tag metamaterial spiral resonator reader antenna

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Effect of Higher Mean Arterial Pressure with Norepinephrine on Tissue Oxygenation and Perfusion in Patients of Septic Shock

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International Journal of Clinical Medicine 2012年第5期3卷 407-410页

作者： Sandeep Sharma mridula Pawar Mohandeep Kaur Nidhi Srivastava Saurav Mustafi Department Of Anaesthesiology and Intensive Care P.G.I.M.E.R Dr Ram Manohar Hospital New Delhi.

The current survival sepsis guideline proposes the use of vasopressors and fluid resuscitation to maintain the mean arterial pressure (MAP) ≥ 65 mmHg. Titrating catecholamine infusion to achieve higher MAP has been demonstrated to improve tissue oxygenation, microcirculation, renal function and overall outcome of the patient in some studies and literature on actual hemodynamic goals is scarce. AIM: To study the influence of two MAP on tissue oxygenation and perfusion parameters in patients of septic shock on norepinephrine infusion. SUBJECT AND MATERIALS: Forty adult patients with the diagnosis of septic shock were enrolled. In all patients norepinephrine was titrated to first stabilize the MAP at 65 ± 5 mmHg (Set I), followed by MAP of 85 ± 5 mmHg (Set II). Heart rate (HR), Central venous oxygen saturation (SCVO2), Transcutaneous partial pressure of oxygen (PtcO2) by TCM 400/TINA (using miniature Clark electrode), Arterial partial pressure of oxygen(PaO2), PtO2/PaO2 ratio, Urine output and Serum Base deficit were recorded in each Set after 2 hrs of stabilization. RESULTS: There was a significant increase in transcutaneous partial pressure of oxygen PtcO2 (p tO2/PaO2 (p < 0.0001), ScvO2 (p < 0.0001), urine output (p < 0.006) on increasing the MAP from 65mmHg to 85mmHg. Serum base deficit also improved (p < 0.0001). CONCLUSION: Higher MAP with norepinephrine is associated with better perfusion, oxygenation parameters in patients with established septic shock. These findings suggest that there is improvement in tissue oxygenation parameters using escalating doses of norepinephrine to achieve higher MAP without inherent adverse

关键词： Mean Arterial Pressure Norepinephrine Septic Shock Tissue Oxygenation

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