To one double-breaker model, experimental investigation on blow open force was carried out. It demonstrates that the ratio between the emerging blow open force and arc power FB/ui decreases with the arcing time, the contact gap has less effect on FB/ui, and the characteristics of the blow open force are similar when the peak value of the short circuit current is beyond 4 kA. Then, according to ...

* Correspondence: zhgs917@163. com Nonlinear Scientific Research Center, Faculty of Science, Jiangsu University, Zhenjiang 212013, China Full list of author information is available at the end of the article Abstract This article deals with the blow-up problems of the positive solutions to a nonlinear parabolic equation with nonlocal source and nonlocal boundary condition. The blow-up and globa...

Sometimes intraorbital foreign bodies lead to unexpected findings. A 16-year old boy was referred due to ocular surface trauma. A conjunctival laceration was detected at the level of the left caruncle with associated left exotropia, reduced adduction as well as a preretinal hemorrhage along the nasal periphery of the fundus. A blow-out fracture of the medial orbital wall was suspected and a CT ...

A 9-year-old girl was referred to a trauma centre with severe head injury. 3D CT scan revealed depressed fracture involving the frontal bone on the right side, right parietal bone, and right superior orbital margin, right lamina papyracea. The frontal table was managed conservatively and open reduction and internal fixation was done for the supraorbital blow in to correct the ocular dystopia. T...

Depressed skull fracture is an inward buckling of the skull bones, often because of direct blow to a small surface area of the skull with a blunt object. Monoparesis is often among its clinical presentations, but midline depressed skull fracture presenting as motor weakness of both lower limbs (Paraperesis) has not yet been reported. We report the case of 55 year old male admitted to emergency ...

Tremendous force is usually required to cause sternal fractures. Normally this is caused either by a direct blow to the chest or by an indirect injury from hyperflexion of the torso. A case is presented of a fracture of the manubrium sterni in a young man as a complication of body building exercises-a non-contact sport. It appears that this has not been reported before.

Although making a decision for the need for surgical correction of diplopia in blow-out fracture is difficult, it is logical to assume that an effective approach for management of diplopia in this type of injury should consider more than one factor. These factors include a preoperative BSV score and of the level of tissue herniation. Recently, the authors published two papers based on 10 year r...

A fall scenario is often given to explain the reason for a head injury to an infant. Mostly the examining doctor or forensic expert has to rely on his own experience and to appraise the situation to be consistent or not with his finds. An experiment carried out on an anatomical preparation showed that the skull of a newborn baby was able to repeatedly resist forces of up to 1000 N before breaki...

A 44-year-old man was referred to our department with diplopia, periorbital swelling and haematoma of the left eye after orbital trauma due to a punch. During the examination, mild enophthalmos, hypertropia and a total absence of infraduction were observed. An orbital computed tomography (CT) scan demonstrated a left orbital floor blow-out fracture, with caudal herniation of periorbital fat and...