Total loss of feedwater accident for VVER-1000/V446 NPP with operator action

Author(s):  
Ahmad Ramezani ◽  
Tooraj Nazari ◽  
Ataollah Rabiee
Keyword(s):  
1992 ◽  
Vol 13 (2) ◽  
pp. 76-77

This sample record is meant to demonstrate comprehensive recording of pertinent data. Actual records will vary in format; many will be written in a more abbreviated style. Name: Sharon DiStefano1 Date of birth: December 8, 19832 Drug allergies: None; cramps from erythromycin3 Immunizations: Fully immunized4 Thursday, February 6, 1992 Telephone Teacher called parents — Sharon "suddenly gets a blank look" for brief periods. Has done this several times. Parents will get further information from teacher, watch carefully over weekend, bring in for visit next week. Tuesday, February 11, 1992 CHIEF COMPLAINT: "We think she's having spells." PRESENT ILLNESS: (See letter from teacher). He has noted over the last week, on 5 or 6 occasions, that Sharon will develop "blank stare" suddenly. When talked to, will not respond at first but will after several repetitions. Once did this in the middle of talking; paused noticeably for a number of seconds, then resumed talking. Eyes always stay open; blinking noted; no total loss of consciousness. No jerking, twitching, slumping, drooling, incontinence. Seems normal afterwards; not aware of any lapse. Over the weekend parents saw similar spells: three times at meals, twice when watching television, once after she had been running around backyard and had just sat down. "Like a shade was drawn behind her eyes."


2021 ◽  
Author(s):  
Cesar Orta ◽  
Mohanad Al Faqih ◽  
Bader Al Gharibi ◽  
Mohammed Al Shabibi ◽  
Ali El Khouly ◽  
...  

Abstract Drilling with a gas cap over the Natih formation in Oman often results in excessive flat time. Using the current dynamic fill equipment to deal with kick and loss scenarios leads to extensive nonproductive time on the rig. Managed pressure drilling (MPD) is a well-established drilling technology, and diverse variants exist to suit different requirements. All those variants use the rotating control device (RCD) as a common piece of equipment, but their procedures are different. The pressurized mud-cap drilling (PMCD) technique in the Natih formation replaces the need for traditional dynamic filling technology. The PMCD application enhances the drilling and completion processes by reducing flat time when total downhole losses are experienced. This paper elaborates on PMCD as a proven drilling technique in total loss scenarios when drilling with it for the first time in the Natih formation in Oman. It describes the PMCD process, the associated equipment, and the results of the inaugural application in the Qalah field.


1923 ◽  
Vol 19 (2) ◽  
pp. 90-92
Author(s):  
V. V. Miloslavsky

Hardly any other branch of medical knowledge has ever faced greater challenges, more pressing questions, than hygiene does at the present moment. The past war has uprooted about 6 million healthy, strong individuals - a direct sacrifice on the altar of Mars. To this should be added about 50 million premature deaths caused by an increase of mortality and those who were not born as a result of a decrease in the birthrate. For Russia, the total loss had already reached 21 million souls by the end of 1920, with 25 million disabled.


2016 ◽  
Vol 52 (2) ◽  
pp. 1-4 ◽  
Author(s):  
Yitong Zhou ◽  
Minggang Wang ◽  
Yue Chi ◽  
Xiaojing Qu ◽  
Pengchao Liu ◽  
...  

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