16 research outputs found

    An Isolated Step-Down Multi-Port DC-DC Power Converter for Electric Refrigerated Vehicles Auxiliary Power Unit System

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    This paper proposes an isolated step-down DC-DC multi-port converter (MPC) for the auxiliary power unit of refrigerated vehicles. Mercedes-Benz eSprinter is used as the baseline for this design with 400V battery pack and 2kW of auxiliary loads. TR-300T refrigeration unit from GUCHEN THERMO is chosen to provide temperatures as low as −18 degrees Celsius for the van\u27s 12 cubic meter cargo space. Similar to Mercedes-Benz Sprinter model, two auxiliary battery units are used to design this MPC. The proposed MPC can provide up to 5kW, while benefiting from two additional paths to the freezer unit during idling and/or fault modes. The proposed MPC has 35% fewer active components compared to the state of the art, while offering higher reliability for the overall system. Simulation and experimental results demonstrate the effectiveness of the proposed MPC, and the control system designed for this application and efficiencies up to 95% were recorded

    Small Cell Carcinoma of Bladder; Still A Diagnostic and Therapeutic Challenge: Seven Years of Experience and Follow-up in A Referral Center

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    PURPOSE: To report clinical, histopathological, and treatment features of small cell carcinoma of (SmccB) bladder during 7 years in a referral center. METHODS: The clinical, histopathological features, treatment modalities, and outcome of all patients with bladder SmccB treated between 2009 and 2016 who were managed in Hasheminejad Kidney Center (HKC) were retrospectively collected. RESULTS: Thirteen patients were diagnosed and managed with SmccB. The average age of patients was 64.92 years. For each patient, 8 markers were used for IHC staining on average. Neuroendocrine markers such as CD 56, Neuron Specific Enolase, Synaptophysin, and Chromogranin were found in a significant percentage of patients (69, 38, 54, and 31 respectively). Patients were managed with TURBT alone (N=3), chemotherapy after TURBT (N=4), chemotherapy plus radical surgery (N=4) and radical surgery alone (N=2). The best clinical result was seen in chemotherapy received patients with or without radical surgery. The mean(SE) of survival rate in patients who received only chemotherapy alone was 42.4 (10.0) months, while in those who were managed with chemotherapy plus radical surgery it was 47.7 (10.1) months. CONCLUSION: In our center immunohistochemistry was needed for definitive diagnosis in 17/19 samples. Misdiagnosis happened in two samples without IHC request. We think that use of immunohistochemistry should be mandatory for diagnosis of SmccB to exclude misdiagnosis. Chemotherapy is the most important part of treatment and the addition of radical surgery can slightly improve patients' survival

    Human monkeypox: history, presentations, transmission, epidemiology, diagnosis, treatment, and prevention

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    Human monkeypox is a zoonotic infection that is similar to the diseases caused by other poxviruses. It is endemic among wild rodents in the rainforests of Central and Western Africa, and can be transmitted via direct skin contact or mucosal exposure to infected animals. The initial symptoms include fever, headache, myalgia, fatigue, and lymphadenopathy, the last of which is the main symptom that distinguishes it from smallpox. In order to prevent and manage the disease, those who are infected must be rapidly diagnosed and isolated. Several vaccines have already been developed (e.g., JYNNEOS, ACAM2000 and ACAM3000) and antiviral drugs (e.g., cidofovir and tecovirimat) can also be used to treat the disease. In the present study, we reviewed the history, morphology, clinical presentations, transmission routes, diagnosis, prevention, and potential treatment strategies for monkeypox, in order to enable health authorities and physicians to better deal with this emerging crisis

    Removal of Blue 56 by Orange Peel from the Waste Water

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    The use of orange peel as low-cost and eco-friendly adsorbents has been investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater. This paper concerns with the removal of Blue 56 from aqueous solutions by orange peel. The effects of pH, initial concentration, adsorbent dosage, and particle size of adsorbent, temperature and also isotherm data analysis and adsorption kinetics were investigated. A maximum removal of 96.76% was obtained at pH 2.5 for an adsorbent dose of 0.2 mg. Rate of adsorption was found to conform to pseudo-second-order kinetics with a good correlation (R2=0.99). The maximumadsorption capacity obtained from Langmuir equation was9.69 (mgg-1).</div

    Removal of Blue 56 by Orange Peel from the Waste Water

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    <div style="mso-element: para-border-div; border-top: solid windowtext 1.0pt; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: none; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; padding: 1.0pt 0cm 1.0pt 0cm;"><p class="MsoNormal" style="margin-bottom: .0001pt; text-align: justify; line-height: 150%; mso-layout-grid-align: none; text-autospace: none; direction: ltr; unicode-bidi: embed; border: none; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; padding: 0cm; mso-padding-alt: 1.0pt 0cm 1.0pt 0cm;"><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman','serif';">The use of orange peel as low-cost and eco-friendly adsorbents has been investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater. This paper concerns with the removal of Blue 56 from aqueous solutions by orange peel. The effects of pH</span><span style="font-size: 9.5pt; line-height: 150%; font-family: Symbol; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Symbol;">,</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman','serif';"> initial concentration,<strong> </strong>adsorbent dosage, and particle size of adsorbent, temperature and also isotherm data analysis and adsorption<em> </em>kinetics were investigated. A maximum removal of 96.76% was obtained at pH 2.5 for an adsorbent dose of 0.2 mg</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">. Rate of adsorption was found to conform to pseudo-second-order kinetics with a good correlation (</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">R</span><sup><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">2</span></sup><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">=0.99). The maximum</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">adsorption capacity obtained from Langmuir equation was</span><span style="font-size: 9.5pt; line-height: 150%; font-family: 'Times New Roman', serif;">9.69 (mgg<sup>-1</sup>).</span></p></div
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