排序方式: 共有16条查询结果,搜索用时 31 毫秒
1.
Journal of Intelligent Manufacturing - Deep learning-based predictive quality enables manufacturing companies to make data-driven predictions of the quality of a produced product based on process... 相似文献
2.
P Deibert S Schwarz M Olschewski V Siegerstetter HE Blum M R?ssle 《Canadian Metallurgical Quarterly》1998,43(8):1708-1713
The aim of this study was to evaluate the efficacy of a single dose of a second-generation cephalosporine to prevent postinterventional infection and to identify risk factors for postinterventional infection in patients receiving implantation or revision of a transjugular intrahepatic portosystemic shunt (TIPS). Eighty-four patients (105 transjugular interventions) were randomized receiving no antibiotic treatment (46 interventions) or 2 g cefotiam (56 interventions) given at the beginning of the procedure. Patients with overt infection or those receiving antibiotic treatment in the preceding two weeks were excluded. Groups were comparable with respect to biographic and medical data. Postinterventional infection was defined as an increase in WBC count (> or =15,000/microl), fever (> or =38.5 degrees C), or a positive blood culture. Infection occurred in 17% of the patients. Patients not receiving cefotiam had a slightly higher incidence of infection (20%) than patients treated with cefotiam (14%, NS). Multivariate analysis demonstrated prognostic relevance for multiple stenting and periprocedural use of a central venous line. The clinical outcome of the patients was unaffected by cefotiam treatment. In conclusion, a single dose of intrainterventional cefotiam does not prevent postinterventional infection. This may be due to the antimicrobial spectrum and short half-time of cefotiam. Strict adherence to aseptic conditions during intervention and early removal of central venous lines may reduce the rate of post interventional infection considerably. Antibiotic prophylaxis with cefotiam does not seem to be useful since it will not influence outcome and costs. 相似文献
3.
Peter Deibert Daniel König Mara Z Vitolins Ulrike Landmann Ingrid Frey Hans-Peter Zahradnik Aloys Berg 《Nutrition journal》2007,6(1):1-7
Background
The present study examines changes in body weight, fat mass, metabolic and hormonal parameters in overweight and obese pre- and postmenopausal women who participated in a weight loss intervention.Methods
Seventy-two subjects were included in the analysis of this single arm study (premenopausal: 22 women, age 43.7 ± 6.4 years, BMI 31.0 ± 2.4 kg/m2; postmenopausal: 50 women, age 58.2 ± 5.1 years, BMI 32.9 ± 3.7 kg/m2). Weight reduction was achieved by the use of a meal replacement and fat-reduced diet. In addition, from week 6 to 24 participants attended a guided exercise program. Body composition was analyzed with the Bod Pod®. Blood pressures were taken at every visit and blood was collected at baseline and closeout of the study to evaluate lipids, insulin, cortisol and leptin levels.Results
BMI, fat mass, waist circumference, systolic blood pressure, triglycerides, glucose, leptin and cortisol were higher in the postmenopausal women at baseline. Both groups achieved a substantial and comparable weight loss (pre- vs. postmenopausal: 6.7 ± 4.9 vs 6.7 ± 4.4 kg; n.s.). However, in contrast to premenopausal women, weight loss in postmenopausal women was exclusively due to a reduction of fat mass (-5.3 ± 5.1 vs -6.6 ± 4.1 kg; p < 0.01). In premenopausal women 21% of weight loss was attributed to a reduction in lean body mass. Blood pressure, triglycerides, HDL-cholesterol, and glucose improved significantly only in postmenopausal women whereas total cholesterol and LDL-cholesterol were lowered significantly in both groups.Conclusion
Both groups showed comparable weight loss and in postmenopausal women weight loss was associated with a pronounced improvement in metabolic risk factors thereby reducing the prevalence of metabolic syndrome. 相似文献4.
H. Chen W. Priyantha R.J. Smith K. Lund M. Finsterbusch M. Deibert V. Shutthanandan 《Surface & coatings technology》2008,202(19):4820-4824
Chromia-forming ferritic stainless steels are being considered for interconnect applications in planar solid oxide fuel cell (SOFC) stacks because of their low cost and physical properties. At high temperatures, ferritic steels lack environmental stability in the SOFC operating environment, and gradually degrade the cell stack performance. In this study, an effective, dense and well adherent TiCrAlYO coating was deposited on an SS430 alloy using the filtered arc deposition technique. High-energy ion backscattering was used to characterize the composition and the thermal stability of the coatings. The chromium volatility of the coated steel plates at 800 °C was also measured using ion beam analysis. Significant reductions in oxidation rates as well as reduced Cr volatility were observed for the coated alloys. 相似文献
5.
6.
Wendelin Deibert Vasiliki Stournari Mariya E. Ivanova Sonia Escolástico José M. Serra Jürgen Malzbender Tilmann Beck Lorenz Singheiser Olivier Guillon Wilhelm A. Meulenberg 《Journal of the European Ceramic Society》2018,38(10):3527-3538
The relationships between microstructural characteristics and electrical as well as mechanical properties of La5.4WO12-δ (LWO54) materials were studied. Polycrystalline LWO54 samples revealed identical transport mechanisms regardless of the sample microstructure. The studied samples show predominately proton conductor behaviour below 800?°C and become predominant n-type and oxygen ion conductors above this temperature. The magnitude of the total conductivity is enhanced with larger grain size and lower porosity. Young’s modulus decreased by 20% with increasing temperature up to 1000?°C regardless of grain size and atmosphere. Fracture strength was determined via ring-on-ring bending tests, yielding values that strongly depended on microstructural characteristics and homogeneity of the microstructure. Elevated temperature deformation studies revealed that creep is governed by cation diffusion mechanism. 相似文献
7.
Wenyu Zhou Jürgen Malzbender Wendelin Deibert Olivier Guillon Ruth Schwaiger Arian Nijmeijer Wilhelm Albert Meulenberg 《Journal of the American Ceramic Society》2021,104(6):2730-2740
The proton conductive material BaCe0.65Zr0.2Y0.15O3−δ has great potential for the separation and purification of hydrogen. However, due to the demanding application conditions regarding both temperature and atmosphere, the elevated temperature structural stability needs to be characterized and warranted. Hence, in this research work, the elevated temperature compressive creep behavior of BaCe0.65Zr0.2Y0.15O3−δ in the temperature regime of 850°C to 1200°C was studied in both air and 4% H2/Ar as a function of the applied stress. The results indicate different creep mechanisms depending on atmosphere and temperature range. While dislocation creep was observed in 4% H2/Ar over the full range, a dislocation creep mechanism was observed in air at temperatures ≤1050°C and a diffusional creep mechanism at temperature ≥1100°C. A detailed microstructural analysis of the post-creep test specimens revealed that the exposure to oxygen leads to localized stoichiometric changes and a decomposition at the surface. 相似文献
8.
Daniel König Klaus Muser Hans-Hermann Dickhuth Aloys Berg Peter Deibert 《Nutrition journal》2009,8(1):23-8
Background
Western diets are considered acidogenic due to the high dietary acid load and a low intake of base-forming dietary minerals such as potassium, magnesium or calcium. In the present study we investigated the effect of a multimineral supplement (MMS) rich in alkaline minerals on acute and chronic regulation of acid-base balance with the pH of blood, urine and saliva as potential surrogate markers. 相似文献9.
10.
HP Allgaier P Deibert U Blum HC Spangenberg E Moser HE Blum 《Canadian Metallurgical Quarterly》1996,126(46):1984-1994
The therapeutic modalities in patients with hepatocellular carcinoma (HCC) depend on the number, size and location of the lesions as well as the stage of the underlying liver disease and the physical condition of the patient. In patients with small and solitary lesions, resection, liver transplantation and in some cases percutaneous ethanol injection (PEI) can be curative. In more advanced stages of the disease with larger or multiple lesions, PEI and/or transarterial chemotherapy with or without embolization (TACE or TAC) can slow the progression of the disease. In disseminated disease, a radiotherapeutic approach can be taken in selected cases. The therapeutic strategy in patients with HCCs should be individualized, frequently involving a combination of therapeutic modalities. In contrast to the earlier dismal prognosis, for most HCC patients there is today a therapeutic strategy that results in prolongation of life and in some cases even cure. 相似文献