|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Stability Limitation and Analytical Evaluation of Voltage Droop Controllers for VSC MTDC显示文摘This paper presents a systematic analysis of DC voltage stability of a multi-terminal VSC-HVDC(MTDC)system,with the emphasis on a comparative study of the most ubiquitous droop control configurations.The paper introduces a general framework for the analysis of various droop control configurations employed in MTDC systems.This framework is then used to compare leading droop control configurations in terms of their impact on the relative stability,performance and robustness of the overall MTDC system.A generalized analytical MTDC model that contains detailed models of AC and DC system components is derived.Limitations imposed by DC power flow,DC inductor,cable modeling and AC network impedance on DC system stability are identified.Classical and multivariable frequency response analysis and eigenvalue analysis are applied to open-loop and closed-loop models to compare the stability and robustness of five leading droop controllers,with the focus on feedback signal selection and controller parameterization.This paper also proposes an active stabilizing controller,which takes the form of a modified constant power control,to enhance the controllability and robustness of the DC voltage control. | Wenyuan Wang Mike Barnes Ognjen Marjanovic | 2018 | CSEE Journal of Power and Energy Systems2018，4，2： | 34 |
| 2 | 为十二指肠的胃肠的 stromal 肿瘤的有限切除术:外科的管理和临床的结果显示文摘 AIM:To analyze our experience in patients with duodenal gastrointestinal stromal tumors(GIST) and review the appropriate surgical approach.METHODS:We retrospectively reviewed the medical records of all patients with duodenal GIST surgically treated at our medical institution between 2002 and 2011.Patient files,operative reports,radiological charts and pathology were analyzed.For surgical therapy open and laparoscopic wedge resections and segmental resections were performed for limited resection(LR).For extended resection pancreatoduodenectomy was performed.Age,gender,clinical symptoms of the tumor,anatomical localization,tumor size,mitotic count,type of resection resectional status,neoadjuvant therapy,adjuvant therapy,risk classification and follow-up details were investigated in this retrospective study.RESULTS:Nine patients(5 males/4 females) with a median age of 58 years were surgically treated.The median follow-up period was 45 mo(range 6-111 mo).The initial symptom in 6 of 9 patients was gastrointestinal bleeding(67%).Tumors were found in all four parts of the duodenum,but were predominantly located in the first and second part of the duodenum with each 3 of 9 patients(33%).Two patients received neoadjuvant medical treatment with 400 mg imatinib per day for 12 wk before resection.In one patient,the GIST resection was done by pancreatoduodenectomy.The 8 LRs included a segmental resection of pars 4 of the duodenum,5 wedge resections with primary closure and a wedge resection with luminal closure by Roux-Y duodeno-jejunostomy.One of these LRs was done minimally invasive;seven were done in open fashion.The median diameter of the tumors was 54 mm(14-110 mm).Using the Fletcher classification scheme,3/9(33%) tumors had high risk,1/9(11%) had intermediate risk,4/9(44%) had low risk,and 1/9(11%) had very low risk for aggressive behaviour.Seven resections showed microscopically negative transsection margins(R0),two showed positive margins(R1).No patient developed local recurrence during follow-up.The one patient who underwent pancreatoduodenectomy died due to progressive disease with hepatic metastasis but without evidence of local recurrence.Another patient died in complete remission due to cardiac disease.Seven of the nine patients are alive disease-free.CONCLUSION:In patients with duodenal GIST,limited surgical resection with microscopically negative margins,but also with microscopically positive margins,lead to very good local and systemic disease-free survival. | Jens Hoeppner Birte Kulemann Goran Marjanovic Peter Bronsert Ulrich Theodor Hopt | 2013 | World Journal of Gastrointestinal Surgery2013，5，2： | 11 |
| 3 | Primary gastric mucosa associated lymphoid tissue lymphoma: Clinical data predicted treatment outcome显示文摘AIM: To determine clinical characteristics and treatment outcome of gastric lymphoma after chemotherapy and immuno-chemotherapy. METHODS: Thirty four patients with primary gastric mucosa associated lymphoid tissue (MALT) lymphoma (Ann Arbor stages Ⅰ to Ⅳ) were enrolled. All had upper gastric endoscopy, abdominal ultrasonography, CT and H pylori status assessment (histology and serology). After anti-H pylori treatment and initial chemotherapy, patients were re-examined every 4 mo. RESULTS: Histological regression of the lymphoma was complete in 22/34 (64.7%) and partial in 9 (26.5%) patients. Median follow up time for these 31 responders was 60 mo (range 48-120). No regression was noted in 3 patients. Among the 25 (73.5%) H pylori positive patients, the eradication rate was 100%.CONCLUSION: Using univariate analysis, predictive factors for overall survival were international prognostic index (IPI) score, hemoglobin level, erythrocyte sedimentation rate (ESR), and platelet numbers (P < 0.005). In addition to this, Cox proportion hazard model differentiate IPI score, ESR, and platelets as predictors of survival. | Milena Todorovic Bela Balint Miodrag Jevtic Nada Suvajdzic Amela Ceric Dragana Stamatovic Olivera Markovic Maja Perunicic Slobodan Marjanovic Miodrag Krstic | 2008 | World Journal of Gastroenterology2008，14，15： | 10 |
| 4 | An aortoduodenal fistula as a complication of immunoglobulin G4-related disease显示文摘Most primary aortoduodenal fistulas occur in the presence of an aortic aneurysm,which can be part of immunoglobulin G4(IgG4)-related sclerosing disease.We present a case who underwent endovascular grafting of an aortoduodenal fistula associated with a high serum IgG4 level.A 56-year-old male underwent urgent endovascular reconstruction of an aortoduodenal fistula.The patient received antibiotics and other supportive therapy,and the postoperative course was uneventful,however,elevated levels of serum IgG,IgG4 and C-reactive protein were noted,which normalized after the introduction of steroid therapy.Control computed tomography angiography showed no endoleaks.The primary aortoduodenal fistula may have been associated with IgG4-related sclerosing disease as a possible complication of IgG4-related inflammatory aortic aneurysm.Endovascular grafting of a primary aortoduodenal fistula is an effective and minimally invasive alternative to standard surgical repair. | Momir Sarac Ivan Marjanovic Mihailo Bezmarevic Uros Zoranovic Stanko Petrovic Miodrag Mihajlovic | 2012 | World Journal of Gastroenterology2012，18，42： | 3 |
| 5 | Extracellular matrices for gastrointestinal surgery:Ex vivo testing and current applications显示文摘AIM:To assess the effects of bile and pancreatic juice on structural and mechanical resistance of extracellular matrices(ECMs) in vitro.METHODS:Small-intestinal submucosa(SIS),porcine dermal matrix(PDM),porcine pericardial matrix(PPM) and bovine pericardial matrix(BPM) were incubated in human bile and pancreatic juice in vitro.ECMs were examined by macroscopic observation,scanning electron microscopy(SEM) and testing of mechanical resistance.RESULTS:PDM dissolved within 4 d after exposure to bile or pancreatic juice.SIS,PPM and PDM retained their integrity for > 60 d when incubated in either digestive juice.The effect of bile was found to be far more detrimental to mechanical stability than pancreatic juice in all tested materials.In SIS,the loss of mechanical stability after incubation in either of the digestive secretions was less distinct than in PPM and BPM [mFmax 4.01/14.27 N(SIS) vs 2.08/5.23 N(PPM) vs 1.48/7.89 N(BPM)].In SIS,the extent of structural damage revealed by SEM was more evident in bile than in pancreatic juice.In PPM and BPM,structural damage was comparable in both media.CONCLUSION:PDM is less suitable for support of gastrointestinal healing.Besides SIS,PPM and BPM should also be evaluated experimentally for gastrointestinal indications. | Jens Hoeppner Goran Marjanovic Peter Helwig Ulrich Theodor Hopt Tobias Keck | 2010 | World Journal of Gastroenterology2010，16，32： | 2 |
| 6 | Impact of remote ischemic preconditioning on wound healing in small bowel anastomoses显示文摘AIM: To investigate the influence of remote ischemic preconditioning (RIPC) on anastomotic integrity. METHODS: Sixty male Wistar rats were randomized to six groups. The control group (n = 10) had an end-to-end ileal anastomosis without RIPC. The preconditioned groups (n = 34) varied in time of ischemia and time of reperfusion. One group received the amino acid L-arginine before constructing the anastomosis (n = 9). On postoperative day 4, the rats were re-laparotomized, and bursting pressure, hydroxyproline concentration, intra-abdominal adhesions, and a histological score concerning the mucosal ischemic injury were collected. The data are given as median (range).RESULTS: On postoperative day 4, median bursting pressure was 124 mmHg (60-146 mmHg) in the control group. The experimental groups did not show a statistically significant difference (P > 0.05). Regarding the hydroxyproline concentration, we did not find any significant variation in the experimental groups. We detected significantly less mucosal injury in the RIPC groups. Furthermore, we assessed more extensive intra-abdominal adhesions in the preconditioned groups than in the control group. CONCLUSION: RIPC directly before performing small bowel anastomosis does not affect anastomotic stability in the early period, as seen in ischemic preconditioning. | Philipp Anton Holzner Birte Kulemann Simon Kuesters Sylvia Timme Jens Hoeppner Ulrich Theodor Hopt Goran Marjanovic | 2011 | World Journal of Gastroenterology2011，17，10： | 2 |
| 7 | Learning and teaching in a synchronous collaborative environment显示文摘 | Marjanovic O | 1999 | Journal of Computer Assisted Learning1999，，15： | 1 |
| 8 | Macrolide antibioticsbroadly and distinctively inhibit cytokine and chemokine produc-tion by COPD sputum cells in vitro 显示文摘 | Marjanovic N Bosnar M MichielinF | 2011 | Pharmacol Res2011，63，： | 1 |
| 9 | The relevance of psy- chosocial variables and working conditions in predicting nurses: coping strategies during the SARS crisis: an online questionnaire survey显示文摘 | Marjanovic Z Greenglass ER Coffey S | 2007 | Intern J Nurs Stud2007，44，6： | 1 |
| 10 | Novelpentamidine derivatives:Synthesis,anti-tumorproperties and polynucleotide-binding activities显示文摘 | Jarak I Marjanovic'M Piantanida I | 2011 | Eur J Med Chem2011，46，7： | 1 |
| 11 | Benz- imidazole derivatives related to 2,3-acrylonitriles, ben- zimidazo quinolines and fluorenes: Synthesis, antitumor evaluation in vitro and crystal structure de- termination 显示文摘 | Hranjec M Pavlovic G Marjanovic M | 2010 | European Journal of Medicinal Chem- istry2010，45，6： | 1 |
| 12 | The In- flammatory pancreatic head mass: significant differences in the ana- tomic pathology of German and American patients with chronic pan- creatitis determine very different surgical strategies 显示文摘 | Keck T Marjanovic G Fernandez-del castillo C | 2009 | Ann Surg2009，249，1： | 1 |
| 13 | Novel cyano-and amidinobenzothiazole derivatives:synthesis,antitumor evaluation,and X-ray and quantitative structure activity relationship(QSAR)analysis显示文摘 | CALETA I KRALJ M MARJANOVIC M | 2009 | J Med Chem2009，52，6： | 1 |
| 14 | Deleterious versus protective autoirrramlty in nultiple sclerosis显示文摘 | Kostie M Stojanovie I Marjanovic G et 81 | 2015 | Cell Immunol2015，296，2： | 1 |
| 15 | Unerupted lower third molar as a cause of acute infection in soldiers显示文摘 | MATIJEVIC S MARJANOVIC M | 2005 | Vojnosanit Perql2005，62，11： | 1 |
| 16 | Correlation between central corneal thickness and intraocular pressure in vari- ous age groups显示文摘 | Marjanovic I Kontic D Hentova-Sencanic P | 2010 | Srp Arh Celok Lek2010，138，56： | 1 |
| 17 | Fed Proposes Rule Changes To Help Electronic Banking显示文摘 | MARJANOVIC STEVEN | | American Banker0，09，： | 1 |
| 18 | Unerupted lower third molar as a cause of acute infection in soldiers显示文摘 | Matijevic S Marjanovic m | 2005 | Vojnosanit Pergl2005，62，11： | 1 |
| 19 | The Temperature Dependence of Intracellular pH in Isolated Frog Skeletal Muscle: Lessons Concerning the Na+-H+ Exchanger显示文摘 | M. Marjanovic A.C. Elliott M.J. Dawson | 1998 | The Journal of Membrane Biology1998，，3： | 1 |
| 20 | Annexin-1 mediates TNF- alpha-stimulated matrix metalloproteinase secretion from rheumatoid arthritis synovial fibroblasts 显示文摘 | Tagoe CE Marjanovic N Park JY | 2008 | J Immunol2008，181，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员