Frequency-Invariant (FI) beamformer is a type of beamformer that has flat spatial response over a wide range of frequency. In most of the algorithms presented today, this FI characteristic is true for all angles including both main lobe and side lobe. In this paper, a novel uniform circular broadband beamformer with frequency-invariant characteristic is proposed. It attempts to optimize the FI ...

Precision measurement of the beam pattern an antenna is very important for many applications. While traditionally such often made in a microwave anechoic chamber or at test range, using unmanned aerial vehicle offers number advantages: can be assembled on site, thus reflecting actual characteristics interest, and more importantly, it performed larger antennas which cannot steered easily measure...

There are three ways to approach and resect the caudate lobe of the liver, that is; and isolated caudate lobectomy, a combined resection of the liver overlying the caudate lobe, and a transhepatic anterior approach by splitting parenchyma of the liver. We had two patients with neoplasms originating in the caudate lobe who underwent a complete caudate lobectomy. Both patients have been doing wel...

endotracheal tube (ett) cuff herniation is a rare, and often difficult to diagnose, cause of bronchial obstruction. we present a case of outside cuff herniation of an endotracheal tube that caused pulmonary right lung atelectasis. a 29-year-old man ,a case of car accident with multiple fractures, was admitted to the emergency ward and transferred to the operating room(or) for open reduction and...

Congenital lobar emphysema is a rare variety of congenital malformation of lung characterized by over distension of a lobe of a lung due to partial obstruction of the bronchus. We are reporting a neonate admitted in the pediatric emergency ward with the respiratory distress since 16th day of life.Investigation revealed the overexpansion of the left upper lobe with mediastinal herniation, shifti...

The schlieren method of measuring far-field focal spots offers many advantages at the Shenguang III laser facility such as low cost and automatic laser-path collimation. However, current methods of far-field focal spot measurement often suffer from low precision and efficiency when the final focal spot is merged manually, thereby reducing the accuracy of reconstruction. In this paper, we introd...

OBJECTIVES Nowadays, early-stage lung cancers are more frequently encountered. Selective lymph node (LN) dissection based on lobe-specific lymphatic pathway has been proposed. Our aim was to study nodal involvement according to tumour location. METHODS We reviewed 1779 lobectomized patients and analysed their pathological characteristics according to tumour location: Group 1 (G1), right upper...

Monocytes and Basophilic Granulocytes in the Cranial Circulation of Patients With Organic Brain Disorders • In 30 patients with organic brain disorders, blood samples from both ear lobes were examined for their white cell contents. In nine of them, blood from the external and internal jugular veins also was examined. The total white cell, neutrophil, and eosinophil counts did not show any diffe...

Monocytes and Basophilic Granulocytes in the Cranial Circulation of Patients With Organic Brain Disorders • In 30 patients with organic brain disorders, blood samples from both ear lobes were examined for their white cell contents. In nine of them, blood from the external and internal jugular veins also was examined. The total white cell, neutrophil, and eosinophil counts did not show any diffe...

BACKGROUND Lung volume reduction surgery has been recommended for patients with upper lobe predominant emphysema and was associated with less favorable outcomes in patients with non-upper lobe predominant emphysema. The value of endobronchial valve (EBV) treatment in lower lobe predominant emphysema has not been studied. OBJECTIVES To confirm the equivalence of upper and lower lobe valve trea...