In this paper an expert system for remote fault diagnosis in the ship lift was developed by analysis of the fault tree and combination with VPN. The fault tree was constructed based on the operation condition of the ship lift. The diagnosis model was constructed by hierarchical classification of the fault tree structure, and the inference mechanism was given. Logical structure of the fault diagnosis in the ship lift was proposed. The implementation of the expert system for remote fault diagnosis in the ship lift was discussed, and the expert system developed was realized on the VPN virtual network. The system was applied to the Gaobaozhou ship lift project, and it ran successfully.

In this paper an expert system for remote fault diagnosis in the ship lift was developed by analysis of the fault tree and combination with VPN. The fault tree was constructed based on the operation condition of the ship lift. The diagnosis model was constructed by hierarchical classification of the fault tree structure, and the inference mechanism was given. Logical structure of the fault diagnosis in the ship lift was proposed. The implementation of the expert system for remote fault diagnosis in the ship lift was discussed, and the expert system developed was realized on the VPN virtual network. The system was applied to the Gaobaozhou ship lift project, and it ran successfully.

Objective:To explore the clinical application value of multi-slice spiral CT in the diagnosis.Methods: Twenty nine patients with clinically suspected rib fractures and X-ray showed no 64 row helical CT scanning in patients with chest trauma fractures after reconstruction, multiplanar reconstruction and VR imaging.Results: Twenty nine patients with occult fracture of rib on the MPR, VR imaging were rib image good, 28 cases were single, multiple rib fractures in 1 cases, the total of 4 cases with rib fracture, incomplete fracture in 25 cases.Conclusion: The 64 row helical CT for occult rib fracture detection rates, diagnostic accordance rate was superior to X-ray plain film, various post-processing techniques applied to timely, accurate, intuitive display rib fracture location, shape, extent of chest trauma, occult rib fracture first choice inspection method.

Objective To compare the effect of establishment of Coronary angiography model in minipigs with right femoral Judkins catheter and 5F universal catheter .Methods Ninteen minipigs were randomized into two groups with right femoral Judkins catheter (ten minipigs)and 5F universal catheter(nine minipigs). Success rate,operation time,X-ray irradiation time were observed .Results The success rate, operation time ,X-ray irradiation time after Coronary angiography in right femoral Judkins catheter group was 100%,(5.68 ±3.53 ) min,(20.84 ±2.45 ) min,in 5F universal catheter group was 88.8%,(6.98 ± 4.13 )min,(26.23 ±8.45 )min.This difference was signifficant( P <0.01).Conclusion Coronary an-giography in minipigs with right femoral Judkins catheter has the advantage of high success rate , less opera-tion time, X-ray irradiation time , is more suit to coronay anatomy of the minipig .

In this paper an expert system for remote fault diagnosis in the ship lift was developed by analysis of the fault tree and combination with VPN. The fault tree was constructed based on the operation condition of the ship lift. The diagnosis model was constructed by hierarchical classification of the fault tree structure, and the inference mechanism was given. Logical structure of the fault diagnosis in the ship lift was proposed. The implementation of the expert system for remote fault diagnosis in the ship lift was discussed, and the expert system developed was realized on the VPN virtual network. The system was applied to the Gaobaozhou ship lift project, and it ran successfully.

Objective To investigate Ureaplasma urealyticum in cervical specimens of gynecologic check-up population and female sex workers(FSW)and its biovars and serotypes.Methods The gynecologic check-up patients and female sex workers were screened using Uu liquid selective medium.The positive cases were then divided into biovars and serotypes by the means of PCR.Results Ninety-eight FSW and164gyne-cologic check-up patients were investigated.In the FSW group,89cases(90.8%)were positive in culture,in-cluding biovar164cases(71.9%),biovar1+27cases(7.9%),biovar218cases(20.2%).In71biovar1positive cases,biovar1+2and co-infection of serotypes of biovar1were defined as mixed infection.Infection with single serotype of biovar1was defined as simple infection.So in71biovar1positive cases of FSW group,there were17mixed infections(23.9%)and54simple infections(76.1%).Simple infections were then subdivided into serotypes,including serotype117cases(31.5%),serotype322cases(40.7%),and serotype615cases(27.8%).In gynecologic check-up group,104cases(63.4%)were culture positive,in-cluding biovar197cases(93.3%),biovar27cases(6.7%).In97biovar1positive cases,there were11mixed infections(11.3%)and86simple infections(88.7%).In86simple infections,there were serotype122cases(25.6%),serotype337cases(43.0%),and serotype627cases(31.4%).Conclusions The posi-tive rate of Uu in FSW is higher than that of gynecologic check-up population(P

Objective To investigate the association between the single nucleotide polymorphisms (SNP)in-308 loci of tumor necrosis factor-α(TNF-α)gene promoter region and chronic hepatitis B (CHB).Methods Genotypes of-308 loci of the TNF-αpromoter were examined by the polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP)in 142 patients with chronic hepatitis B (CHB group)and 150 healthy controls (HC group).The indexes for evalua-ting the curative effect were the ALT,AST,HBeAg,HBV-DNA and the viral load weight,HBV-LP and HBV-PreS1,mean-while,the correlations between related indexes and SNP in TNF-α308 loci were explored as well.Results There was no sta-tistical significance in frequency distribution difference of the genotypes and alleles of-308 loci between CHC and HC groups (P>0.05),the protective factors of TNF-α308 allele A may be not associated with CHB (OR=1.529,OR95%CI:0.872~2.684).There was no association between TNF-αgene promoter-308G/A polymorphism and the positive rates of AST, ALT,HBV-LP and HBV-PreS1 (P>0.05),however,TNF-α-308G/A polymorphism associates with the positive rates of HBeAg and HBV-DNA,and A-allele of 308 loci may increase the risk of HBeAg and HBV-DNA positive expression (HBeAg:OR=3.256,OR95%CI=1.105~9.594;HBV-DNA:OR=2.847,OR95%CI=1.059~7.655).Furthermore,A-allele compared with Gallele,statistically significant differences were observed in the certain HBVDNA viral load range of104~107 copies/ml (P <005).Conclusion TNFαgene promoter308G/A polymorphism would not be associated withCHB,but the TNFα308 gene G mutation of Aallele,which was associated with HBVDNA viral load,may be the susceptible factors of HBV infection.

Objective To develop a complete set of medical water processing and supply system to meet the needs of water in field operations for emergency rescues and disaster relief work, filed advance drill, etc. Methods A complete set of medical water processing and supply system was composed of two parts, including water processing system and water supply system. The means of filtrating, precipitating, sterilizing, adsorbing and ion regulating were adopted in water processing system to purify the water from primitive and to pure state for living or medical treatment. The techniques and equipments such as pressurizing, buffering, current regulating and special pipes, valves, fast joints, etc, were adopted in water supply system, and high performance water-pipe network were established. Results The water processing and supply system has some disadvantages, such as water quality guarantee, water quantity abundance, water flow stabilization, water pressure qualification, and system safety, credibility, low failure-ratio, energy saving etc, and can meet the needs of medical water in field operations. Conclusion The water system can be carried out by design optimizing and can realize mobile and emergencies.

Objective To extract and purify a polysaccharide SEP from eggs of sea urchin Strongylocentrotus nudus. and to determine its purity, molecular weight and immunological activity in vitro. Methods The orthogonal design was employed to obtain the best possible combination of the critical parameters for polysaccharide extraction. By ultrafiltration, DE-AE Sepharose Fast Flow anion-exchange chromatography and Sephacryl S-400 gel filtration chromatography, the deproteinated crude polysaccharide was purified. The homogeneity of SEP was proved by HPLC, polyacrylamide gel electrophoresis and paper chromatography. Its molecular weight was determined by HPGPC in reference to standVd T-series Dextran. Lymphocyte proliferation assay was made to investigate the immuno-modulating activity of SEP. Results and Conclusion The results indicated SEP was a homogeneous polysaccharide. Its molecular weight was about 1950KD. SEP increased remarkably spleen lymphocyte proliferation. The homogeneous polysaccharide SEP showed significantly immunological activity in vitro.

Objective To investigate the biocompatibility and biodegradability of mini-implants of PLA-based composites in experimental animals by histomorphometry, and to study its clinical application in orthodontic treatment. Methods Six adult male Beagle dogs were randomly divided into 3 groups, a total of 72 mini-implants were implanted to the mandibular. Two Beagle dogs were sacrificed at 2 months、4 months and 6 months after surgery. Animals were intramuscularly injected with tetracycline on 14 and 4 days before sacrifice. Mandibular specimens and the surfaces of mini-implants were examined with Cone beam CT, CBCT and Scanning Electronic Microscopy and SEM respectively. Histopathologocal changes were observed with toluidine blue staining and HE staining. Results The results of CBCT assay showed that the mini-implants were gradually radiopacity with the extension of time. SEM assay showed that the morphology of mini-implants surface was significantly changed;micro-implants degradation occured gradually.New bone formation was observed around the micro-implants within 10 days.Toluidine blue staining showed the formation of new bone around the mini-implants. However, the inflamma-tion around the implants was not observed. Conclusion The biocompatibility of biodegradable mini-implant is good. This mini-implant is biodegradable in vivo and can promote the formation of the surrounding bone tissue.