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Flexibility Prediction of Aggregated Electric Vehicles and Domestic Hot Water Systems in Smart Grids

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Engineering 2021年第8期7卷 1101-1114页

作者： Junjie Hu Huayanran Zhou Yihong Zhou Haijing Zhang lars Nordströmd Guangya Yang State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University) Beijing 102206China Division of Electric Power and Energy Systems School of Electrical Engineering and Computer ScienceKTH Royal Institute of TechnologyStockholm 10044Sweden Center for Electric Power and Energy Department of Electrical Engineering Technical University of DenmarkKgs Lyngby 2800Denmark

With the growth of intermittent renewable energy generation in power grids,there is an increasing demand for controllable resources to be deployed to guarantee power quality and frequency *** flexibility of demand response(DR)resources has become a valuable solution to this ***,existing research indicates that problems on flexibility prediction of DR resources have not been *** study applied the temporal convolution network(TCN)-combined transformer,a deep learning technique to predict the aggregated flexibility of two types of DR resources,that is,electric vehicles(EVs)and domestic hot water system(DHWS).The prediction uses historical power consumption data of these DR resources and DR signals(DSs)to facilitate *** prediction can generate the size and maintenance time of the aggregated *** accuracy of the flexibility prediction results was verified through simulations of case *** simulation results show that under different maintenance times,the size of the flexibility *** proposed DR resource flexibility prediction method demonstrates its application in unlocking the demand-side flexibility to provide a reserve to grids.

关键词： Load flexibility Electric vehicles Domestic hot water system Temporal convolution network-combined transformer Deep learning

TiNiHf/SiO_(2)/Si shape memory film composites for bidirectional micro actuation

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International Journal of Smart and Nano Materials 2022年第2期13卷 293-314页

作者： Sabrina M.Curtis Marian Sielenkamper Gowtham Arivanandhan Duygu Dengiz Zixiong Li Justin Jetter Lisa Hanke lars Bumke Eckhard Quandt Stephan Wulfinghoff Manfred Kohl Institute for Materials Science Kiel University(CAU)KielGermany Materials Science and Engineering University of MarylandCollege ParkMDUnited States Institute of Microstructure Technology Karlsruhe Institute of Technology(KIT)KarlsruheGermany

The martensitic phase transformation in Ti_(40.4)Ni_(48)Hf_(11.6) shape memory alloys is leveraged for bi-directional actuation with TiNiHf/SiO_(2)/Si *** shape memory properties of magnetron sputtered Ti_(40.4)Ni_(48)Hf_(11.6) films annealed at 635℃-5 min are influenced by film thickness and the underlying *** TiNiHf film thick-ness from 21μm to 110 nm results in the reduction of all characteristic transformation temperatures until a critical thickness is ***,Ti_(40.4)Ni_(48)Hf_(11.6) thin films as low as 220 nm show transfor-mations above room temperature when deposited on SiO_(2) buffer layer,which is of great interest in *** comparison,220 nm films on Si substrates are austenitic at room temperature,and thus not suitable for *** fatigue tests on TiNiHf/SiO_(2)/Si bimorphs demonstrate better functional fatigue characteristics than freestanding films,with an average reduction of 15℃ after 125 cycles,with tempera-ture stabilization *** bi-directional actuation results are promising in the development of bistable actuators within a PMMA/TiNiHf/Si trimorph composite,whereby the additional PMMA layer undergoes a glass transition at 105℃.With the aid of constitutive modeling,a route is elaborated on how bistable actuation can be achieved at micro-to nanoscales by showing favorable thickness combinations of PMMA/TiNiHf/Si composite.

关键词： Bimorph microactuator NiTiHf bistable actuator shape memory alloy thin films

基于深度学习技术的集群电动汽车及家庭热水系统灵活性预测

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Engineering 2021年第8期7卷 141-169页

作者：胡俊杰周华嫣然周羿宏张海婧 lars Nordstr?md 杨光亚 State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University) Division of Electric Power and Energy Systems School of Electrical Engineering and Computer Science KTH Royal Institute of Technology Center for Electric Power and Energy Department of Electrical Engineering Technical University of Denmark

随着电网中间歇性可再生能源发电规模的增大，为了保证电能质量和频率的稳定性，电网对可控资源的需求也随之增加。需求响应（demand response, DR）资源的灵活性已成为解决这一问题的一个有价值的方法。然而，目前关于DR资源的灵活性... 详细信息

随着电网中间歇性可再生能源发电规模的增大，为了保证电能质量和频率的稳定性，电网对可控资源的需求也随之增加。需求响应（demand response, DR）资源的灵活性已成为解决这一问题的一个有价值的方法。然而，目前关于DR资源的灵活性预测问题尚未得到充分的研究。本研究应用一种深度学习技术，即结合时间卷积神经网络的TRANSFORMER模型（temporal convolution network-combined transformer）来预测电动汽车与家庭热水系统两种DR资源的聚合灵活性。所提出的灵活性预测方法使用了基于DR资源的历史用电数据以及为了辅助预测所提出的DR信号数据。所提方法不仅可以预测聚合灵活性的大小，还可以预测其维持时间。最后，本文通过算例仿真验证了灵活性预测结果的准确性。仿真结果表明，在不同的灵活性维持时间下，DR资源灵活性的大小会发生变化。文中所提出的DR资源灵活性预测方法展现了其在释放需求侧资源的灵活性以向电网提供备用容量方面的应用。

关键词：负荷灵活性电动汽车家庭热水系统结合时间卷积神经网络的Transformer模型深度学习

肥胖患者罗库溴铵的给药剂量应按理想体重还是校正体重计算

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麻醉与镇痛 2011年第4期7卷 62-67页

作者： Christian S. Meyhoff, md, PhD JФrgen Lund, md Morten T. Jenstrup, md Casper Claudius, md, PhD Anne M. Scrensen, md, PhD JФrgen Viby-Mogensen, md, DMSc lars S. Rasmussen, md, PhD, DMSc 肖洁(译) 王祥瑞(校) Department of Anaesthesia Centre of Head and Orthopaedics Copenhagen University Hospital Rigshospitalet Copenhagen Department of Anaesthesia Hamlet Hospital Frederiksberg Denmark 不详

背景对于肥胖患者，药代动力学参数显示，应按照患者的理想体重计算罗库溴铵给药剂量，但此方生却可能延长罗库溴铵起效时间或不能满足插管条件。本研究按不同的校正体重将患者分成3组，并分别按照校正体重计算罗库溴铵给药剂量，比较3... 详细信息

背景对于肥胖患者，药代动力学参数显示，应按照患者的理想体重计算罗库溴铵给药剂量，但此方生却可能延长罗库溴铵起效时间或不能满足插管条件。本研究按不同的校正体重将患者分成3组，并分别按照校正体重计算罗库溴铵给药剂量，比较3组中罗库溴铵的起效时间、插管条件和药物持续时间。方法将51例择期行腹腔镜胃束带减容术和胃转流术的肥胖患者随机分成3组，平均体重指数为44（34-72）kg／m^2，分别按照理想体重（IBW组，n=17）、理想体重加超标体重的20％[校正体重（CBW）20％组，n=17]、理想阵重加起标体重的40％（CBW40％组，n=17）计算罗库溴铵给药剂量（0．6mg／kg）．所有患者都采用丙泊酚-瑞芬太尼复合麻醉。一次静注丙泊酚200mg并以5mg·kg^-1·h^-1泵注维持麻醉，瑞芬太尼则以1．0μg·kg^-1·min^-1的速度维持输注，2种药物均采用CBW40％组的校正体重计算给药量。采用TOF（4个成串刺激）监测神经肌肉功能，首要观察指标为罗库溴铵持续时间，即4个成串神经刺激中第4个肌颤搐的恢复时间。结果IBW组、CBW20％组和CBW40％组罗车溴铵持续时间分别为32（18～49）分钟、38（25～66）分钟和42（24—66）分钟，IBW组和CBW40%组间差异有统计学差异（P=0．001）：而在各组罗库溴铵的起效时间（分别为85、84和80秒）和注药后90秒内的插管条件差异无统计学意义。结论对于行胃束带减容术和胃转流术的肥胖患者，按照理想体重给予罗库溴铵后其持续时间短，不会明显延长药物的起效时间，也不会影响插管条件。

关键词：理想体重罗库溴铵肥胖患者给药剂量校正芬太尼复合麻醉统计学差异插管条件

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骨科教程膝关节内侧副韧带及内侧结构的损伤

中华骨科杂志 2010年第9期30卷 I0056-I0068页

作者： Coen A. Wijdicks, PhD Chad J. Griffith, md Steinar Johansen, md lars Engebretsen, md, PhD Robert F. LaPrade, md, PhD 夏志敏(译) Investigation performed at the Department of Orthopaedic Surgery University of Minnesota Minncapolis Minnesota and the Oslo University Hospital and Faculty of Medicine University of Oslo Oslo Norway 浙江省杭州市中医院 310007

内侧副韧带浅层及其他内侧的膝关节稳定结构——如，内侧副韧带深层和后斜韧带——是损伤最为多见的膝关节韧带性结构。

关键词：膝关节内侧副韧带内侧结构骨科教程损伤膝关节稳定带性结构

抗高血压治疗期间心电图左心室肥厚消退及其对主要心血管事件的预测作用

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美国医学会杂志（中文版） 2005年第6期24卷 323-329页

作者： Peter M. Okin, md Richard B. Devereux, md Sverker Jern, md Sverre E. Kjedsen, md,PhD Stevo Julius, md, ScD Markkus S. Nieminen, md, PhD Steven Snapinn, PhD Katherine E. Harris, DrPH Peter Aurup, md Jonathan M. Edelman, md Hans Wedel, PhD lars H. Lindholm, md, PhD Bjorn Dahlof md, PhD 倪靖炜（译）沈卫峰（校） Department of Medicine Division of Cardiology Cornell University Medical Center New York NY Sahlgrenska University Hospital/OEstra Goeteborg Sweden Ulleval University Hospital Oslo Norway University of Michigan Medical Center Ann Arbor Division of Cardiology Department of Medicine Helsinki University Central Hospital Helsinki Finland Amgen Inc Thousand Oaks Calif Merck Research Laboratories West Point Pa Merck ＆ Co Inc Whitehouse Station NJ Nordic School of Public Health Gbteborg Sweden Umea. University Umea Sweden 不详

背景：心电图左心室肥厚（left ventficular hypertophy，LVH）是心血管并发症及死亡的强预测指标。然而，在抗高血压治疗期间心电图LVH程度变化的预测价值仍不清楚。目的：验证抗高血压治疗期间心电图LVH程度越轻，心血管并发症与死亡... 详细信息

背景：心电图左心室肥厚（left ventficular hypertophy，LVH）是心血管并发症及死亡的强预测指标。然而，在抗高血压治疗期间心电图LVH程度变化的预测价值仍不清楚。目的：验证抗高血压治疗期间心电图LVH程度越轻，心血管并发症与死亡率越低，并与血压水平及其降低和治疗方式无关的假说。设计、设置及参试者：1995～2001年于9193例55至80岁（均值，67岁）男性和女性高血压患者进行的双盲、随机、平行组研究。心电图LVH用康奈尔电压一时间乘积或Sokolow—Lyon电压表示，患者均入选氯沙坦降低高血压终点事件干预研究（Losartan Intervention For Endpoint，LIFE）。干预：以氯沙坦或阿替洛尔为基础的治疗方案，随访评估至少4年（均值，4．8年[SD，0．9]）。主要结果测定：心血管死亡、心肌梗死或卒中复合终点与基线及随后1年或每年心电图LVH严重程度的关系。结果：1096例（11．9％）发生心血管死亡、非致死性心肌梗死或卒中。在控制治疗方式、基线Framingham危险记分、基线和治疗期间血压以及基线心电图LVH严重程度（康奈尔乘积或Sokolow—Lyon电压）的Cox回归模型中，康奈尔乘积和Sokolow—Lyon电压所示治疗中LVH严重程度较低者，复合心血管终点事件的发生率分别降低14％和17％（康奈尔乘积每降低1050mm×ms,[1-SD]：校正风险比[hazard ratio，HR]，0．86；95％可信区间[confidence interval，CI]，0．82～0．92；P〈0．001；Sokolow—Lyon电压每降低10．5mm[1-SD]：HR，0．83；95％CI，0．78～0．88；P〈0．01）。在平行分析中，较低的康奈尔乘积和Sokolow—Lyon电压均与较低的心血管死亡（分别为HR，0．78；95％CI，0．73～0．83；P〈0．001和HR，0．80；95％CI，0．73～0．87；P〈0．001）、心肌梗死（HR，0．90；95％CI，0．82～0．98；P=0．01和HR，0．90；95％CI，0．81～1．00；P=0．04））和卒中（HR，0．90；95％CI，0．84～0．96；P=0．002；HR，0．81；95％CI，0．75～0．89；P〈0．001）独立相关。结论：抗高血压治疗期间，根据康奈尔乘积和Sokolow—Lyon电压判定的心电图LVH程度较轻与心血管并发症和死亡可能性较低相关，而且独立于原发性高血压患者的血压降低及治疗方式。旨在改善或预防心电图LVH的抗高血压治疗可以改善患者的预后。

关键词：抗高血压治疗心血管事件治疗期间左心室肥厚心电图原发性高血压患者预测作用致死性心肌梗死心血管并发症 interval

Late valve implantation for pulmonary insufficiency after repair of tetralogy of Fallot

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Late valve implantation for pulmonary insufficiency after re...

全国心脏瓣膜外科学术会议

作者： Jorge Salazar lars Nolke Anthony Azakie Tom R．Karl md Division of Pediatric Cardiothoracic Surgery University of California San Francisco USA

Background Pulmonary insufficiency is usually well tolerated after repair of tetralogy of Fallot (TOF) . Many accepted surgical options for repair of TOF will result in some degree of pulmonary insufficiency. This may result in late, progressive right ventricular dilation and dysfunction, with increasing fatigue, lower limb edema, arrhythmias, and sudden *** Our objective was to review our experience with late pulmonary valve implantation (PVI) after repair of TOF and to evaluate the relative benefits and risks of operation. Methods. Patients who underwent late PVI after TOF repair from June, 2002 to April 30, 2004 were reviewed. Sources included patients’ hospital charts and echocardiograms. Follow - up was performed by the primary cardiologist. Results Ten patients had elective, late PVI. Average time after initial repair was 20.0 years (range 1,5 - 43 years, median 19 years) . There was no hospital mortality and all patients demonstrated significant symptomatic improvement. Pre - operatively, 9 of 10 patients were in New York Heart Association class Ⅲ - IV. After PVI, all patients were in class Ⅰ - Ⅱ (average class improvement of 1.7) . Left ventricular ejection fraction was significantly improved (EF from 62.1 ± 4.7 % to 70.2 ±4.9 ％, p =0.0001), as was fractional shortening (34.0±5.0 ％ to 40.0 ±4.2 ％, p = 0.01) . Right ventricular diameter also decreased significantly (from 32.3 ± 7.5 mm to 24.4 ±5.4 mm, p = 0.0005) . All PVI were performed with Carpentier - Edwards bovine pericardial prostheses, with sizes ranging from 19 mm to 27 mm. Average hospital stay was 5.4 days (range 4-7 days) . One patient had preoperative ventricular fibrillation, requiring resuscitation and an implantable cardiac defibrillater (ICD) before PVI, and another patient needed ICD at the time of PVI because of ventricular arrhythmias. After PVI, patients’ QRS duration decreased significantly (155.2 ± 27.1 to 140±21.2, p = 0.048) . The mean follow-up period was 12.5 months (ran

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α-干扰素在小细胞肺癌放疗中的作用

中华放射肿瘤学杂志 1988年第4期 59-59页

作者： lars R.Holsti.md ,文碧秀

本文就人体α—干扰素(INF)与放疗对肺和肿瘤组织的作用,对有选择性的小细胞肺癌(SCLC)患者身上进行了研究。患者必须是初治且病灶局限。共分两组:7例INF高量组病人,先接受高剂量的INF(800×10～6Iu iV×5),然后低剂量维持(6×10～6Iu i... 详细信息

本文就人体α—干扰素(INF)与放疗对肺和肿瘤组织的作用,对有选择性的小细胞肺癌(SCLC)患者身上进行了研究。患者必须是初治且病灶局限。共分两组:7例INF高量组病人,先接受高剂量的INF(800×10～6Iu iV×5),然后低剂量维持(6×10～6Iu im2/W),局部病灶辅以间隔放疗(55Gy/20F/7W)。5例低量INF组,一开始就用低剂量的INF(6×10～6Iu im Qd),并配合每日两次分割放疗,总量为44Gy/40F/4W。两组均有4例行全脑预防性照射,高量组因脑转移有3例全脑照射。对播散到胸腔以外的病例,停INF,加用化

关键词：小细胞肺癌低剂量放射性肺炎放射损伤 INF