The availability of a periodic inspection system under mixed maintenance policies is studied in this paper. To accommodate the characteristic multiple failure modes for complex systems, failures can be divided into two modes: hard and soft failure. When occurs, corresponding corrective will performed, taking random time perfect policy; contrast, if found, preventive imperfect policy. dynamic ag...

Thyrotoxic periodic paralysis (TPP) attacks are characterized as recurrent, transient episodes of muscle weakness that range from mild weakness to complete flaccid paralysis. Episodes of weakness are accompanied by hypokalemia, which left untreated can lead to life-threatening arrhythmias (6). In this case study, we followed a patient's potassium levels analyzing how they correlate with electro...

Thyrotoxic Periodic Paralysis (TPP) is a rare and life threatening condition commonly occurring in young Asian males. It is characterized by acute paralytic attacks and hypokalemia in association with thyrotoxicosis. Serum potassium levels may be normal in rare cases of TPP. The diagnosis of normokalemic TPP may be overlooked and/or delayed in most cases. Here, we describe a 32-year-old Iranian...

Ensuring inspection performance is not a trivial design problem, because inspection is a complex and difficult task that tends to be error-prone, whether performed by human or by automated machines. Due to economical or technological reasons, human inspectors are responsible for inspection functions in many cases. Humans, however, are rarely perfect. A system of manual inspection was found to b...

Complex aircraft require periodic maintenance checks to assess needed repairs for continued vehicle availability. However, such checks are expensive and the associated aircraft downtime can reduce fleet mission effectiveness. The United States Air Force plans to consolidate the time-based (isochronal) C-5 aircraft major inspection activities for eight C-5 home stations into three locations. Iso...

た.し か し発熱,筋 ・関節痛はな く,知 覚異常も 自覚 しなかつた.筋 脱力は四肢に限局し,頭 頚部 およ び躯幹の異常はなかつた.発 病後約1週 間徐 徐に増悪 したのち快方に向い,約1ヵ 月間の通院 治療で全治した.そ の後は特別の症状なく普通に 生活 していたがが,昭 和43年(15才 時)8月 初旬, 野球大会に投手 として出場のための練習で過労がが 続いたのち,同 月12日,最 終試合を 終えて 帰宅 後,夕 食前,午 後6時 頃から両手の脱力を覚え, 翌13日 朝は両下肢 の脱力が加わ り,さ らに夕刻に は軽度の嚥下障害も認められ,14日 には腰腹筋脱 力,15日 には起坐 ・歩行全 く不能 とな り,8月17 日当科に入院 した. 入院時現症:意 識清明.起 坐 ・歩行全 く不能 で受動的背臥位であるが,心 ・肺お よび腹部内臓 には異常なく,軽 度の嚥下障害を...

The suspension system of a vehicle is one of the most important parts which is involved in the process of vehicle designing. When a vehicle suspension system is designed, the evaluation of its performance against the road disturbances such as shocks and bumps are very important. The most commonly used systems consist of four hydraulic Jacks with mobility in vertical line with low speed and l...