This article introduces the concepts relating to deep-cut vacuum distillation and its suitability,and analyzes the deep-cut vacuum distillation technique licensed by the KBC Advanced Technologies to the 10 Mt/a CDU/VD...This article introduces the concepts relating to deep-cut vacuum distillation and its suitability,and analyzes the deep-cut vacuum distillation technique licensed by the KBC Advanced Technologies to the 10 Mt/a CDU/VDU of the Qingdao refinery and makes comparison on the test run data after commissioning of the distillation unit. The test results have confirmed that the operation of the CDU/VDU had reached the expected goal to achieve good social and economic benefits.展开更多
The vacuum heat treatment with overpressure gas quenching is more and more accepted due to considerable advantages compared to the traditional oil and salt bath processes. Continuous further developments and new conce...The vacuum heat treatment with overpressure gas quenching is more and more accepted due to considerable advantages compared to the traditional oil and salt bath processes. Continuous further developments and new concepts like multi-directional cooling systems, a separate quenching chamber and "sub zero" systems lead towards an oxidation free and low distortion vacuum heat treatment for a broad range of parts and materials. Short and energy saving processes guarantee a high economic efficiency and environmental compatibility. The "sub zero" system which is integrated into the standard vacuum furnace achieves a heat treatment result with a high conversion of retained austenite in fully automatic hardening and tempering processes.展开更多
Background: Deep sternal wound infection (DSWI), or mediastinitis, is a devastating complication of coronary artery bypass grafting (CABG). This prospective study aimed to assess our management of DSWI in view of the ...Background: Deep sternal wound infection (DSWI), or mediastinitis, is a devastating complication of coronary artery bypass grafting (CABG). This prospective study aimed to assess our management of DSWI in view of the published literature. Methods: Over 2-years (ending in January 2016), 29 patients (20 males) developed DSWI amongst 520 patients who underwent standard CABG surgeries (5.6%). Pre-, intra- and postoperative variables were documented. Whenever possible, the infections were culture-verified. Besides antibiotics, patients received one or more of the following therapies: drainage, debridement, closed irrigation, sternal re-wiring, vacuum-assisted closure (VAC), and bone resection. Results: the male to female ratio was 2.2:1. Mean age was 58.1 ± 7.3 years. The mean body mass index (BMI) was 27.9 ± 3.4 kg/m<sup>2</sup>. There were 18, 16 and 11 patients with diabetes mellitus (DM), hypertension and chronic obstructive pulmonary disease (COPD) respectively. Cardiopulmonary bypass (CPB) was utilized in 26 (89.7%) patients with a mean time of 117.5 ± 23.3 minutes. Most surgeries (n = 21, 72.4%) lasted 5 - 6 hrs. According to Pairolero classification, there were 3 (10.3%) Type I, 22 (75.9%) Type II and 4 (13.8%) Type III infections. Four (13.8%) cases were culture-verified. Twenty-three (79.3%) DSWIs were surgically managed. Sternal re-wiring was performed in 14 (48.3%) cases while VAC was added to other therapies in 2 (6.9%) patients. DSWIs completely resolved in 18 (62.0%) patients within 3 - 24 weeks while two (6.9%) patients died within 30 days. Conclusion: We have identified six independent risk factors for DSWI (male gender, obesity, DM, hypertension, COPD and CPB), five of them are modifiable.展开更多
目的:探究基于行动研究法的健康管理联合负压封闭引流(Vacuum sealing drainage,VSD)技术对深度烧伤患者心理状态及创面修复效果的影响。方法:选取2021年9月-2023年6月笔者科室收治的98例深度烧伤患者,经随机单双号法分为常规组(单号,n=...目的:探究基于行动研究法的健康管理联合负压封闭引流(Vacuum sealing drainage,VSD)技术对深度烧伤患者心理状态及创面修复效果的影响。方法:选取2021年9月-2023年6月笔者科室收治的98例深度烧伤患者,经随机单双号法分为常规组(单号,n=49)和行动法组(双号,n=49),两组均实施VSD技术治疗,常规组采用常规护理干预,行动法组采用基于行动研究法的健康管理。比较两组患者疾病认知水平、负性情绪[自我感受负担量表(Self-perceived burden scale,SPBS)]、伤残接受度[伤残接受度量表(Acceptance of disability scale,AODS)]、生活质量[中文版精简烧伤健康量表(Burn specific health scale-brief,BSHS-B)]、创面美观度[温哥华瘢痕量表(Vancouver scar scale,VSS)]评分及护理满意度。结果:干预后,行动法组患者对疾病的认知情况评分、AODS、BSHS-B评分及护理满意度均高于常规组,SPBS、VSS评分均低于常规组,差异均有统计学意义(P<0.05)。结论:对行VSD治疗的深度烧伤患者采用基于行动研究法的健康管理,可明显提高患者的疾病认知和伤残接受度,调节其负性情绪,利于创面外观恢复及生活质量提升,患者满意度较高,值得推荐。展开更多
文摘This article introduces the concepts relating to deep-cut vacuum distillation and its suitability,and analyzes the deep-cut vacuum distillation technique licensed by the KBC Advanced Technologies to the 10 Mt/a CDU/VDU of the Qingdao refinery and makes comparison on the test run data after commissioning of the distillation unit. The test results have confirmed that the operation of the CDU/VDU had reached the expected goal to achieve good social and economic benefits.
文摘The vacuum heat treatment with overpressure gas quenching is more and more accepted due to considerable advantages compared to the traditional oil and salt bath processes. Continuous further developments and new concepts like multi-directional cooling systems, a separate quenching chamber and "sub zero" systems lead towards an oxidation free and low distortion vacuum heat treatment for a broad range of parts and materials. Short and energy saving processes guarantee a high economic efficiency and environmental compatibility. The "sub zero" system which is integrated into the standard vacuum furnace achieves a heat treatment result with a high conversion of retained austenite in fully automatic hardening and tempering processes.
文摘Background: Deep sternal wound infection (DSWI), or mediastinitis, is a devastating complication of coronary artery bypass grafting (CABG). This prospective study aimed to assess our management of DSWI in view of the published literature. Methods: Over 2-years (ending in January 2016), 29 patients (20 males) developed DSWI amongst 520 patients who underwent standard CABG surgeries (5.6%). Pre-, intra- and postoperative variables were documented. Whenever possible, the infections were culture-verified. Besides antibiotics, patients received one or more of the following therapies: drainage, debridement, closed irrigation, sternal re-wiring, vacuum-assisted closure (VAC), and bone resection. Results: the male to female ratio was 2.2:1. Mean age was 58.1 ± 7.3 years. The mean body mass index (BMI) was 27.9 ± 3.4 kg/m<sup>2</sup>. There were 18, 16 and 11 patients with diabetes mellitus (DM), hypertension and chronic obstructive pulmonary disease (COPD) respectively. Cardiopulmonary bypass (CPB) was utilized in 26 (89.7%) patients with a mean time of 117.5 ± 23.3 minutes. Most surgeries (n = 21, 72.4%) lasted 5 - 6 hrs. According to Pairolero classification, there were 3 (10.3%) Type I, 22 (75.9%) Type II and 4 (13.8%) Type III infections. Four (13.8%) cases were culture-verified. Twenty-three (79.3%) DSWIs were surgically managed. Sternal re-wiring was performed in 14 (48.3%) cases while VAC was added to other therapies in 2 (6.9%) patients. DSWIs completely resolved in 18 (62.0%) patients within 3 - 24 weeks while two (6.9%) patients died within 30 days. Conclusion: We have identified six independent risk factors for DSWI (male gender, obesity, DM, hypertension, COPD and CPB), five of them are modifiable.
文摘目的:探究基于行动研究法的健康管理联合负压封闭引流(Vacuum sealing drainage,VSD)技术对深度烧伤患者心理状态及创面修复效果的影响。方法:选取2021年9月-2023年6月笔者科室收治的98例深度烧伤患者,经随机单双号法分为常规组(单号,n=49)和行动法组(双号,n=49),两组均实施VSD技术治疗,常规组采用常规护理干预,行动法组采用基于行动研究法的健康管理。比较两组患者疾病认知水平、负性情绪[自我感受负担量表(Self-perceived burden scale,SPBS)]、伤残接受度[伤残接受度量表(Acceptance of disability scale,AODS)]、生活质量[中文版精简烧伤健康量表(Burn specific health scale-brief,BSHS-B)]、创面美观度[温哥华瘢痕量表(Vancouver scar scale,VSS)]评分及护理满意度。结果:干预后,行动法组患者对疾病的认知情况评分、AODS、BSHS-B评分及护理满意度均高于常规组,SPBS、VSS评分均低于常规组,差异均有统计学意义(P<0.05)。结论:对行VSD治疗的深度烧伤患者采用基于行动研究法的健康管理,可明显提高患者的疾病认知和伤残接受度,调节其负性情绪,利于创面外观恢复及生活质量提升,患者满意度较高,值得推荐。
