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| 1 | 割集功率空间上静态电压稳定域的实用边界显示文摘提出了电力系统在割集功率空间上静态电压稳定域边界的实用表达方法。用临界割集将系统分为地理上互不连通的两部分,即相对集中的弱节点区域和非弱节点区域,利用连续潮流,搜索大量的电压稳定临界点,以临界割集上线路的有功和无功潮流为坐标,并通过最小二乘法,将获得的临界点以超平面的形式拟合出电压稳定域的边界,其误差可满足工程应用的要求。这种方法既达到了使复杂电力系统降维的目的,又方便了运行人员监视系统稳定性。同时,电压稳定域边界以超平面形式表示,为电力系统的在线安全分析、评估和优化提供了简明、方便的解析工具。该方法在IEEE 14节点、IEEE 39节点、IEEE 118节点等系统和EPRI 1000节点系统的算例中得到了很好的验证,均以较小误差满足工程需要。 | 李慧玲 余贻鑫 韩琪 宿吉锋 赵金利 Stephen T LEE Pei ZHANG | 2005 | 电力系统自动化2005，29，4： | 32 |
| 2 | 静态电压稳定域边界的非线性近似解析表达显示文摘在电力系统控制决策与运行分析中,对系统稳定运行区域的边界面几何形状的认识具有重要的意义。文中对注入功率空间中静态电压稳定域边界面(即潮流可解域边界)的二次特性进行了深入的探讨。通过对潮流方程雅可比矩阵的行列式在临界点附近进行泰勒级数展开并保留二次项,得到了计及非线性项的边界近似解析表达式。在计算过程中应用了潮流方程特征值和特征向量灵敏度系数的计算。该方法的优点是算法本身不涉及任何非线性方程的迭代求解,且所提出的非线性解析表达式能在大范围内较好地逼近真实稳定域边界。通过IEEE系统的算例对所提出的方法的精确性进行了验证。 | 韩琪 余贻鑫 贾宏杰 李鹏 Stephen T LEE Pei ZHANG | 2005 | 电力系统自动化2005，29，11： | 22 |
| 3 | 复功率注入空间中电力系统的实用动态安全域显示文摘为研究复功率注入空间中实用动态安全域的边界性质,针对多个典型电力系统,通过大量的仿真研究表明,在网络中不同位置发生持续不同时间的短路事故时,复功率注入空间中暂态稳定的临界点的集合可以使用一个或极少数几个超平面来近似描述.在包含暂态电压失稳现象的稳定问题研究中,复功率空间中的实用动态安全域具有更好的精度.文中详细讨论了这些近似描述与真实边界之间的差异并发现了实用动态安全域边界的迁移规律,上述研究大大拓宽了实用动态安全域适用的范围.最后通过对某电力大系统实用动态安全域的研究,验证了上述结论. | 余贻鑫 董存 LEE Stephen T ZHANG Pei | 2006 | 天津大学学报2006，39，2： | 11 |
| 4 | 失稳模态识别方法及其在动态安全域中的运用显示文摘提出了一种快速识别初始运行点附近失稳模态的方法,该方法基于大量计算观察到的初始运行点附近不同运行点注入下模型的可达性格纳姆矩阵元素近乎不变的性质,将基于K-中心点算法的同调识别和初加速度法相结合,快速识别初始运行点附近的失稳模态,为实用动态安全域(PDSR)直接法提供了临界点搜索建议,改善了PDSR法。该方法的有效性在New England 10机39节点系统得到了验证。 | 闵亮 余贻鑫 Stephen T Lee Pei Zhang | 2004 | 电力系统自动化2004，28，11： | 9 |
| 5 | Nationwide trends and predictors of inpatient mortality in 83884 transjugular intrahepatic portosystemic shunt显示文摘AIM: To evaluate and validate the national trends and predictors of in-patient mortality of transjugular intrahepatic portosystemic shunt(TIPS) in 15 years.METHODS: Using the National Inpatient Sample which is a part of Health Cost and Utilization Project, we identified a discharge-weighted national estimate of 83884 TIPS procedures performed in the United States from 1998 to 2012 using international classification of diseases-9 procedural code 39.1. The demographic, hospital and co-morbility data were analyzed using a multivariant analysis. Using multi-nominal logistic regression analysis, we determined predictive factors related to increases in-hospital mortality. Comorbidity measures are in accordance to the Comorbidity Software designed by the Agency for Healthcare Research and Quality.RESULTS: Overall, 12.3% of patients died during hospitalization with downward trend in-hospitalmortality with the mean length of stay of 10.8 ± 13.1 d. Notable, African American patients(OR = 1.809 vs Caucasian patients, P < 0.001), transferred patients(OR = 1.347 vs non-transferred, P < 0.001), emergency admissions(OR = 3.032 vs elective cases, P < 0.001), patients in the Northeast region(OR = 1.449 vs West, P < 0.001) had significantly higher odds of inhospital mortality. Number of diagnoses and number of procedures showed positive correlations with in-hospital death(OR = 1.249 per one increase in number of procedures). Patients diagnosed with acute respiratory failure(OR = 8.246), acute kidney failure(OR = 4.359), hepatic encephalopathy(OR = 2.217) and esophageal variceal bleeding(OR = 2.187) were at considerably higher odds of in-hospital death compared with ascites(OR = 0.136, P < 0.001). Comorbidity measures with the highest odds of in-hospital death were fluid and electrolyte disorders(OR = 2.823), coagulopathy(OR = 2.016), and lymphoma(OR = 1.842).CONCLUSION: The overall mortality of the TIPS procedure is steadily decreasing, though the length of stay has remained relatively constant. Specific patient ethnicity, location, transfer status, primary diagnosis and comorbidities correlate with increased odds of TIPS in-hospital death. | Edward Wolfgang Lee Andrew Kuei Sammy Saab Ronald W Busuttil Francisco Durazo Steven-Huy Han Mohamed M El-Kabany Justin P Mc Williams Stephen T Kee | 2016 | World Journal of Gastroenterology2016，22，25： | 7 |
| 6 | 电力系统实用动态安全域的降维与还原显示文摘提出了一种在注入功率空间中求取电力系统实用动态安全域(PDSR)的超平面形式的临界稳定边界的新方法。通过对电力系统进行数值仿真搜索到大量临界点,并通过最小二乘法拟合得到临界超平面的方法精确但费时,难以实际应用。为了在重要的预想事故下快速、准确地求取电力系统的临界超平面,文中提出首先将高维的电力系统通过基于相关的动态等值化简为低维的等值系统,再对其进行数值仿真,拟合出等值系统的临界超平面,然后根据动态等值逆过程推导出超平面还原的解析表达式,最后修正还原得到超平面的系数,使所得到的超平面通过一个由对原系统的详细模型进行仿真得到的临界点,可以在一定程度上改善临界超平面的精度。算例结果证明这种方法兼顾了临界超平面求取的速度与精度,使PDSR在实时安全性分析中的应用更易实现。 | 侯科峰 余贻鑫 Stephen T Lee Pei Zhang | 2004 | 电力系统自动化2004，28，23： | 3 |
| 7 | Effects of Yttrium-90 selective internal radiation therapy on non-conventional liver tumors显示文摘The liver is a common site of metastasis, with essentially all metastatic malignancies having been known to spread to the liver. Nearly half of all patients with extrahepatic primary cancer have hepatic metastases. The severe prognostic implications of hepatic metastases have made surgical resection an important first line treatment in management. However, limitations such as the presence of extrahepatic spread or poor functional hepatic reserve exclude the majority of patients as surgical candidates, leaving chemotherapy and locoregional therapies as next best options. Selective internal radiation therapy(SIRT) is a form of catheter-based locoregional cancer treatment modality for unresectable tumors, involving trans-arterial injection of microspheres embedded with a radioisotope Yttrium-90. The therapeutic radiation dose is selectively delivered as the microspheres permanently embed themselves within the tumor vascular bed. Use of SIRT has been conventionally aimed at treating primary hepatic tumors(hepatocellular carcinoma) or colorectal and neuroendocrine metastases. Numerous reviews are available for these tumor types. However, little is known or reviewed on non-colorectal or nonneuroendocrine primaries. Therefore, the aim of this paper is to systematically review the current literature to evaluate the effects of Yttrium-90 radioembolization on non-conventional liver tumors including those secondary to breast cancer, cholangiocarcinoma, ocular and percutaneous melanoma, pancreatic cancer, renal cell carcinoma, and lung cancer. | Andrew Kuei Sammy Saab Sung-Ki Cho Stephen T Kee Edward Wolfgang Lee | 2015 | World Journal of Gastroenterology2015，21，27： | 2 |
| 8 | The genome database for rosaceae (GDR) : year 10 update显示文摘 | Jung S Stephen P F Lee T | 2014 | Nucleic Acids Research2014，42，： | 1 |
| 9 | Nanoscale Atoms in Solid- State Chemistry 显示文摘 | Roy X Lee C H Crowther A C Schenck C L Besara T Lalancette R A Siegrist T Stephens P W Brus L E Kim P Steigerwald M L Nuckolls C | 2013 | Science2013，，341： | 1 |
| 10 | Factors affecting in vitro germination and storage of jojoba pollen显示文摘 | LEE W JOHN C T STEPHEN LB | 1985 | J A mer Soc Hort Sci1985，110，5： | 1 |
| 11 | Factors affecting in vitro germina- tion and storage of jojoba pollen 显示文摘 | Lee W John C T Stephen L B | 1985 | J Amer Soc Hort Sci1985，110，5： | 1 |
| 12 | probabilistic load flow computation using the method of combined cumulants and gram-charlier expansion显示文摘 | Pei Zhang Stephen T Lee | 2004 | IEEE Transactions on Power Systems2004，19，1： | 1 |
| 13 | Management and long-term follow-up of hepatic cysts显示文摘 | Matthew F Hansman John A Ryan James H Holmes Stephen Hogan Faye T Lee Donna Kramer Thomas Biehl | 2001 | The American Journal of Surgery2001，，5： | 1 |
| 14 | Ellagic acid and flavonoid antioxidant content of muscadine wine and juice显示文摘 | Lee J H | 2002 | J Agric Food Chem2002，50，： | 1 |
| 15 | A Mitochondria-K + Channel Axis Is Suppressed in Cancer and Its Normalization Promotes Apoptosis and Inhibits Cancer Growth显示文摘 | Sébastien Bonnet Stephen L. Archer Joan Allalunis-Turner Alois Haromy Christian Beaulieu Richard Thompson Christopher T. Lee Gary D. Lopaschuk Lakshmi Puttagunta Sandra Bonnet Gwyneth Harry Kyoko Hashimoto Christopher J. Porter Miguel A. Andrade Bernard T | 2007 | Cancer Cell2007，，1： | 1 |
| 16 | Factors affecting in vitro germination and storage of jojoba pollen 显示文摘 | Lee W John C T Stephen L B | 1985 | J Amer Soc Hort Sci1985，110，5： | 1 |
| 17 | Power delivery reliability initiative bears fruit 显示文摘 | Stephen T Lee Steve Hoffman | 2001 | IEEE Computer Applications in Power2001，14，3： | 1 |
| 18 | An N-terminal truncated carboxypeptidase E splice isoform induces tumor growth and is a biomarker for predicting future metastasis in human cancers显示文摘 | Lee Terence K Murthy Saravana R K Cawley Niamh X Dhanvantari Savita Hewitt Stephen M Lou Hong Lau Tracy Ma Stephanie Huynh Thanh Wesley Robert A Ng Irene O Pacak Karel Poon Ronnie T Loh Y Peng | 2011 | Journal of Clinical Investigation2011，，3： | 1 |
| 19 | Simulation model explores alternative wholesale power market structures 显示文摘 | Lee Stephen T | 2002 | IEEE Com- puter Applications in Power2002，15，2： | 1 |
| 20 | Management and long-term follow-up of hepatic cysts显示文摘 | Matthew F Hansman John A Ryan James H Holmes Stephen Hogan Faye T Lee Donna Kramer Thomas Biehl | 2001 | The American Journal of Surgery2001，，5： | 1 |
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