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تعداد نتایج: 1160619 فیلتر نتایج به سال:
Wheezing and cough are common case scenarios that pediatricians encountered in their office practices. Although a bronchogenic cyst is an uncommon condition, it is essential to be considered in the differential diagnosis of a chronic cough and wheezing among young children who fail to respond to appropriate medical treatment. A 28-month-old girl was referred to our pediatric pulmonology clinic ...
We here report the case of an 18-year-old man with a giant yolk sac tumor that is resected under percutaneous cardiopulmonary support (PCPS). Because this patient had severe dyspea when he lay in a supine position, we resected the tumor. We used PCPS during the operation for the induction and maintenance of ventilation because his trachea and left main bronchus were collapsed by the tumor. Also...
Primary endobronchial schwannomas are extremely rare tumors that originate from Schwann cells. We report a case of primary endobronchial schwannoma. A 44-year-old woman, without respiratory symptoms, was presented with a nodule in the left main bronchus on her chest computed tomography scan. The nodule was removed by a rigid bronchoscopy with argon plasma coagulation. Biopsy confirmed the diagn...
Cutaneous complications caused by a pacemaker or defibrillator are widely documented, but the development of a bronchocutaneous fistula has never been described before. We report the case of a 79-year-old man who was admitted to our hospital because of a seemingly superficial cutaneous infection, externalized defibrillator leads, and hemoptysis. Bronchoscopical investigation proved the existenc...
We report a case of posttuberculosis (TB) tracheobronchial stenoses presented with progressive exertional dyspnea during the course of anti-TB treatment. An 83-year-old Japanese man was admitted for progressive dyspnea; chest X-ray and CT showed stenosis of distal trachea and left main bronchus. Pulmonary function test revealed reduction of FEV1. Balloon dilatation without stent insertion was t...
This paper presents an analytical modeling method of optimal control variables to maximize output power for switched reluctance generators (SRGs) in single pulse mode operation. This method extends the basic theory of the Stiebler model and utilizes the flux linkage function to express the inductance model of SRG. In this paper, the optimal phase current shape of SRG for maximum output power is...
in this paper, photovoltaic (pv) grid-connected inverter which is the core device in pv grid-connected system has been in depth research.an improved predictive current controller has been developed by the authors for single-phase grid-connected voltage source inverters (vsi).based on dsp tms320lf2407a, a 10 kw single-phase grid-connected inverter has been built in this paper.thus is aimed at us...
Despite decades of research many aspects of the biology of Mycobacterium tuberculosis remain unclear and this is reflected in the antiquated tools available to treat and prevent tuberculosis and consequently this disease remains a serious public health problem. Important discoveries linking M. tuberculosis's metabolism and pathogenesis have renewed interest in this area of research. Previous ex...
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