نتایج جستجو برای: circular pin
تعداد نتایج: 81114 فیلتر نتایج به سال:
Prostatic intra-epithelial neoplasia (PIN) is considered a precursor of invasive carcinoma, characterized by proliferation and anaplasia of cells lining prostatic ducts and acini. In this study, we applied the PIN grading system on one-hundred cases of prostatic carcinoma and one-hundred cases of benign prostatic hyperplasia, then compared the results. 74% of prostatic carcinoma and 51 % of...
Background: Pin loosening and infection in skeletal traction are important problems in orthopedic surgery and methods which are usually used to manage these problems, are costly and sometimes complicated. In this study, the efficacy of using cast support in infection and loosening of proximal tibial pin was investigated. Methods: In a randomized clinical trial, 60 patients referring to Rasul-e...
Abstract Nature and technology often adopt structures that can be described as tubular helical assemblies. However, the role mechanisms of these remain elusive. In this paper, we study mechanical response under compression extension a assembly composed 8 Kirchhoff rods, arranged in pairs with opposite chirality connected by pin joints, both analytically numerically. We first focus on find that,...
On the market several systems exist for collecting spent ammunition for forensic investigation. These databases store images of cartridge cases and the marks on them. The research in this paper is focussed on the different methods of feature selection and pattern recognition that can be used for computation For automatic comparison of these images are extracted firstly the useful parts of the i...
this report is on a migration of a steinman pin into the posterior com department of the calf. it was used to fix a greater trochanteric osteotomy in a total hip arthroplasty. the puzzling note is how this metal piece passed through the anterolateral compartment of the thigh to the posterior compartment of the calf. accord ing to our literature review, migration of fixation pins through the kne...
Robotic Hardware: The beamlines currently available to the Center each have a robotic crystal mounting system, developed under NIH R01 funding to Thomas Earnest. The robot has a large liquid nitrogen dewar and cryo-pin gripper assembly (Fig. 1). The dewar is rotated and translated in order to position the required crystal under the gripper assembly. The gripper is then translated vertically out...
The 16-station RandomPOD wear test system, previously validated for prosthetic hip wear, was used in the simulation of knee wear mechanisms with a ball-on-flat test configuration. This consisted of a CoCr pin with a ground and polished spherical bearing surface (radius 28 mm) against a conventional, gamma-sterilized UHMWPE disk in serum lubrication. The biaxial motion, consisting of x and y tra...
The number, shape and sizes of intermuscular bones have been studied in table size (around 1200g). rohu, catla and mrigal after microwave cooking and dissection. Carp intermuscular bones have varied shape and size. These bones are of two types, Y pin bones and straight pin bones. Total number of pin bones are highest in mrigal (110 nos.) followed by catla (108 nos.) and rohu (104 nos.). Y pin b...
Responding to the PIN cracking attacks from Berkman and Ostrovsky (FC 2007), we outline a simple solution called salted-PIN. Instead of sending the regular user PIN, salted-PIN requires an ATM to generate a Transport Final PIN from a user PIN, account number, and a salt value (stored on the bank card) through, e.g., a pseudo-random function. We explore different attacks on this solution, and pr...
Percutaneous transosseous Ilizarov wiring, whilst preferred in the tibia because of its unique properties, carries a high risk of complications in the femur. The aim of this work was to evaluate the efficacy of a more patient-friendly semicircular pin external fixator module built up from parts of the Ilizarov fixator components and its use in managing diaphyseal femoral nonunions. A group of 2...
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