seepage in earth fill dams is one of the important factors that may cause the erosion and slope instability if it is ignored. therefore, it is crucial to calculate the leakage discharge through the body of dam and foundation, to prevent economic and life hazards by considering technical and economical issues. in this research, the seepage analysis of the body and the stability of the upstream a...

Between the metal–insulator–metal (MIM) capacitor and metal–oxide–metal (MOM) capacitor, the MIM capacitor has a better characteristic of stable capacitance. However, the MOM capacitors can be easily realized through the metal interconnections, which does not need additional fabrication masks into the process. Moreover, the capacitance density of the MOM capacitor can exceed the MIM capacitor w...

A field-effect transistor is developed to control flow in microfluidic chips by modifying the surface charge condition. In this investigation, zeta potential at a particular location is altered locally by applying a gate voltage, while zeta potential at other locations is maintained at its original value. This non-uniform zeta potential results in a secondary electroosmotic flow in the lateral ...

On-chip decoupling capacitors (decaps) are widely used to reduce power supply noise. Typically, designs use NMOS decaps between standard-cell blocks and NMOS+PMOS decaps within the blocks. Starting at the 90nm CMOS technology node, the traditional decap designs may no longer be suitable due to increased concerns regarding thin-oxide gate leakage and electrostatic discharge (ESD) reliability. Th...

This paper presents a CMOS temperature sensor based on the thermal dependencies of the leakage currents targeting the 65 nm node. To compensate for the effect of process fluctuations, the proposed sensor realizes the ratio of two measures of the time it takes a capacitor to discharge through a transistor in the subthreshold regime. Furthermore, a novel charging mechanism for the capacitor is pr...

One of the major complications of pelvic surgery is symptomatic pelvic hematoma, which is an accumulation of blood outside of blood vessels. It happens as a result of blood vessel damage, and blood abnormal leakage into tissues. Pelvic hematoma may be associated with pain, fever, and foul-smelling discharge. Most of what is published so far on symptomatic postoperative pelvic hematoma is limite...

Detection of Low Frequency (around 40kHz) Ultrasound is a powerful method for maintenance inspection of plant and machinery. Many failure conditions give early indication by the production of ultrasound. These include pressure leaks, electrical discharge and deterioration of bearings and other machinery. Leakage of compressed air has become a particular issue recently with the promotion of ener...

A case of a 79-year-old man, status post laparoscopic cholecystectomy with a drainage catheter placed at the gallbladder fossa is presented. The case was complicated postoperatively by abdominal pain and bilious discharge from the drainage catheter. Endoscopic retrograde cholangio-pancreatography demonstrated leakage through the cystic duct stump into the gallbladder fossa. Placement of a cover...

Introduction: Vesico-uterine fistula (VUF) is a recognised but rare complication following lower segment caesarean section with an incidence of less than 4% of all urogenital fistulae. Patients commonly present with urinary incontinence, cyclical haematuria, amenorrhoea, infertility and spontaneous first trimester abortions. Presentation can be immediate or delayed. Case description: A 34-year-...

Introduction: Video-assisted thoracic surgery (VATS) is now commonly used for primary spontaneous pneumothorax. In the present study we compared the outcomes of this technique with those obtained by conventional thoracotomy.Material and Methods: In this cross-sectional stud, forty patients were enrolled into two groups: VATS (n=20) and thoracotomy (n=20). In both groups the blebs were resected ...