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1182篇 您的检索式:作者名="PACK"
    题名 作者 年代 出处 被引量
1Usage and Benefit of an Overhead Line Monitoring System显示文摘Overhead lines are the backbone of the electrical power transmission.Contrary to the distributions networks,the transmission system consists only in exceptional cases of longer cable lines.Typical exceptions are connections of cavern power plants,approaches to airports or bird sanctuaries and lines in urban centres.In the majority of cases,an overhead line is the most economic and practicable solution for the energy transmission.In tourism regions,an overhead line will be seen as impairment of nature or landscape and so the approval chain and procedure is in most countries long-winded and circumstantial.At the other hand,the energy consumption in Europe is growing and the volatility of transmitted power is also increasing during the last decade caused by the opening of the electric energy market.This opening process leads to a stopping of the enlargement of the interoperation network and to a minimisation of the maintenance of existing lines.Today the network operates more often at the limit of the equipment and the small and large-areas disturbances and blackouts are increasing.The operators of transmission lines are forced to ensure the electrical power supply and so they have to improve the reliability of the network.One solution is to monitor the critical(heavy loaded)overhead lines.For example,with the knowledge of the thermal condition,the risk of unexpected outages can be reduced.Today several monitoring systems are available on the market.They differ in the principle and techniques of the condition evaluation.The three most interesting output variables are the line temperature,the capable transmission power and the actual sag of the investigated section.In this paper an overview of existing overhead line monitoring system and also an outline over the usage and benefit for the application will be given.Thermal monitoring is one technique to improve the reliability of the network and for increasing or optimising the capable transmission power.M. Muhr S. Pack S. Jaufer 2008高电压技术2008,34,12:4
2饲用酶制剂可提高玉米高粱日粮的营养价值显示文摘饲用酶制剂可提高玉米高粱日粮的营养价值MichaelPack等著刘升军摘译呙于明校过去认为玉米和豆粕在家禽中不存在消化问题,这类日粮的营养价值不能通过添加饲用酶得以改善。随着在以粘性谷物为基础的日粮中添加酶所获得的研究成果的积累,一些特定设计的酶制剂...Michael Pack 刘升军 1998国外畜牧科技1998,25,4:2
3Risk of sedation for diagnostic esophagogastroduodenoscopy in obstructive sleep apnea patients显示文摘AIM: To investigate whether patients with obstructive sleep apnea (OSA) are at risk of sedation-related complications during diagnostic esophagogastroduodenoscopy (EGD). METHODS: A prospective study was performed in consecutive patients with OSA, who were confirmed with full-night polysomnography between July 2010 and April 2011. The occurrence of cardiopulmonary complications related to sedation during diagnostic EGD was compared between OSA and control groups. RESULTS: During the study period, 31 patients with OSA and 65 controls were enrolled. Compared with the control group, a higher dosage of midazolam was administered (P = 0.000) and a higher proportion of deep sedation was performed (P = 0.024) in the OSA group. However, all adverse events, including sedation fail-ure, paradoxical responses, snoring or apnea, hypoxia, hypotension, oxygen or flumazenil administration, and other adverse events were not different between the two groups (all P > 0.1). Patients with OSA were not predisposed to hypoxia with multivariate logistic regression analysis (P = 0.068). CONCLUSION: In patients with OSA, this limited sized study did not disclose an increased risk of cardiopulmonary complications during diagnostic EGD under sedation.Jae Myung Cha Jung Won Jeun Kwan Mi Pack Joung Il Lee Kwang Ro Joo Hyun Phil Shin Won-Chul Shin 2013World Journal of Gastroenterology2013,19,29:2
4Identification of three genetic loci controlling leaf senescence in Arabidopsis thaliana显示文摘OH S A PARK J H LEE G I PACK K H PARK S K NAM H G 1997Plant Journal1997,12,3:1
5Inhaled nitric oxide attenuates acute lung injury via inhibition of nuclear factor-kappa B and inflammation显示文摘Kang JL Park W Pack IS 2002J Appl Physiol2002,92,:1
6The human vitamin D receptor gene(VDR) is localized to region 12cen-ql2 by fluorescent in situ hybridization and radiation hybrid mapping: genetic and physical VDR map显示文摘Taymans SE Pack S Pak E 1999J Bone Miner Res1999,14,7:1
7Estimation of the permeability of silica fume cement concrete显示文摘Song H W Pack S W 2010Construction and Build- ing Materials2010,24,3:1
8Advances in sleep disordered breathing显示文摘Pack A I 2006Am J Respic Crit Care Med2006,173,1:1
9The association between antiepileptic drugs and bone disease显示文摘Alison M Pack MD 2003Epilepsy Curr2003,3,3:1
10显示文摘Monkhorst H J Pack J D 1976Physical Review B1976,13,12:1
11Exact helical reconstruction using native cone-beam geometries显示文摘Noo F Pack J Heuscher D 2003Physics in Medicine and Biology2003,48,:1
12Phys Rev B显示文摘Monkhorst H J Pack J D 19761976, 13: 51881976,13,:1
13Effects of light emitting diodes on the in vitro induction and growth of bulhlets of Liliurn oriental hybrid Pesaro 显示文摘Lian M L Murthy H N Pack K Y 2002Scientia Horticulturae2002,94,3:1
14Factors influen- cing chloride transport and chloride threshold level for the prediction of service life of concrete structures 显示文摘SONG H ANN K Y PACK S 2010International Journal of Structural Engineering2010,1,2:1
15Special point for Brillouin-zone integrations显示文摘MONKHORST H. J PACK J. D 0,,12:1
16Fabrication of PLG microspheres with precisely controlled and monodisperse size distributions显示文摘BERKLAND C KIM K K PACK D W 2001Journal of Controlled Release2001,73,1:1
17PLG microsphere size controls drug release rate through several competing factors 显示文摘Berkland C Kim K K Pack D W 2003Pharmaceuti- cal research2003,20,7:1
18Special points for Brillouin-zone integrations - a reply 显示文摘Monkhorst H J Pack J D 1977Phys Rev B1977,16,4:1
19Detection of surface in shell eggs by acoustic impulse method显示文摘Cho H K Choi W K Pack J H 2000Transactions of ASAE2000,43,6:1
20Special points for Brillouin-zone integrations显示文摘Monkhorst H J Pack J D 1976Phys Rev B1976,13,12:1
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