In this paper, experiments were designed for inducing neutral, terrified, excited, annoying emotions, and also low, middle, high, three levels of tension emotions of stress state, respectively. Based on the multi physiological signals generated by the subjects in emotions, such as heart rate and respiration rate and so on, we extracted features from these data which had been eliminated the baseline. Then the Particle Swarm Optimization method was adopted to optimize the features selection from the features of multi physiological signals, and combined with k-Nearest Neighbor algorithm, different emotions and varying degree tensions were classified. The result shows that the classification accuracy of the kNN method with SPO and baseline eliminated is better than the traditional kNN method.
Algorithms ; Behavioral Research ; instrumentation ; methods ; Emotions ; Humans ; Stress, Psychological

Described gambro hemodialysis reverse osmosis water treatment system can not supply water due to PC PLC failure, the reasons of failure were analysed, troubleshooting methods and procedures were introduced.
Maintenance ; Renal Dialysis ; instrumentation

Based on the circuit board, we draw its circuit diagram. By analyzing the circuit diagram, we maintain medical device power supply and achieve the troubleshooting goal quickly.
Durable Medical Equipment ; Electric Power Supplies ; Maintenance

OBJECTIVEDiscussion meticulous management of operation room's endoscopic instruments for operation safety and efficiency.

METHODEstablishing an endoscopic management team, to strengthen the details of management, to establish and regulate a series processes of the endoscopic instruments.

RESULTSEndoscopic instruments' damage rate was decreased after its meticulous management, the missing parts number was reduced, the cleaning and sterilization effect were satisfied, physicians' satisfaction were increased.

CONCLUSIONSEndoscopic instruments meticulous management can maximize the utilization of endoscopic equipment, decrease hospital infection rate, safeguard the operation smoothly.

Based on HRP (Hospital Resource Planning) system's device management module, A new online information management system is proposed and realized to meet the new challenge of medical devices' repairing and maintenance. the traditional telephone report or online report can all be deal. the repair progress can be visualized in real time PM planning and it's early warning are added.
Equipment and Supplies, Hospital ; Maintenance and Engineering, Hospital

In 2011, Shanghai Medical Equipment Management Quality Control Center launched the fifth after-sale service satisfaction survey for medical devices in Shanghai area. There are 8 classes medical devices involving in the survey. This paper demonstrates the investigation results of monitoring devices which are from different manufacturers.
Consumer Behavior ; Equipment and Supplies ; Product Surveillance, Postmarketing ; Quality Control

In this article, medical consumable materials supply catalog technology was introduced through the principle, method and application of topic studies, at the same time bar code tags to tag and identify medical consumable materials were introduced. These two techniques established the correspondence between the real supplies logistics and information flow system, provided foundation for medical supplies all process tracking and traceability management. Supply catalog and encoding identification technology provide a new solution for the effective management of medical consumable materials.
Automatic Data Processing ; Materials Management, Hospital ; methods

To explore the optimum laser power and energy in porcine thyroid ablation in vitro with 1 064 nm Nd:YAG laser of different power and energy guided by ultrasound after comparison of size and pathology of ablation lesions. The experimental results showed that Laser ablation effect of porcine thyroid in vitro is definite, the size of ablation lesions increases as the laser power and energy increases, when the laser power and energy are 3 W and 1 800 J, the ablation lesion effect reaches ideal level.
Animals ; Laser Therapy ; instrumentation ; methods ; Lasers, Solid-State ; Swine ; Thyroid Gland ; diagnostic imaging ; surgery ; Ultrasonography

Based on the current GB standard and IEC standard, some unique security risk points of the superconductive magnet were discussed and pointed, some security eigenvalue of widely used MRI were calculated, method and technology of the quench risk & protection were focused. Currently during the type test of superconductive MRI, the national standards and industry standards have not included items focus on superconductive magnet particularly, so this paper gives some recommended discussing and hopes to improve and enhance the future standard. Because superconductive MRI uses a large number of helium gas which is very short in China and if quenching, helium will evaporate quickly, so the helium recycling are also discussed.
Equipment Safety ; Magnetic Resonance Imaging ; instrumentation ; Magnets

Designed a contrast pinhole detect testing including water leak method, electrical method and improved electrical method, and concluded that the water leak method is most suitable as the arbitration method, and recommended the national standard add the requirement on electrolytic liquid filling volume of electrical test in order to improve detection accuracy.
Condoms ; Latex ; Materials Testing ; methods ; Rubber