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| 1 | 金属对金属髋关节表面置换术两种不同手术入路中假体位置的X线测量比较显示文摘[目的]了解外侧入路和后外侧入路两种不同入路中髋关节表面置换中假体位置的差异。[方法]72个关节中,分为两组:A组21例病人,共26个髋关节,采用Hardinge的外侧入路。B组44例,共46个髋关节,采用改良的Gibson入路,股骨头由关节后方脱出。测量的指标包括:(1)术前颈干角和术后股骨假体柄干角;(2)髋臼假体的外展角;(3)股骨假体的中心偏移距;(4)术前髋臼前倾角和术后髋臼假体前倾角;(5)股骨假体侧方中心偏移距;(6)股骨假体的侧方偏移角。[结果]股骨假体的柄干角A组为139.5°,B组为140.5°,2种入路间的柄干角无显著性差异;髋臼假体的外展角A组为37.7°,B组为44.4°;前倾角A组为21.6°,B组为15.2°。[结论]髋关节表面置换可以采用外侧入路和后外侧入路,股骨假体安放位置在两种入路中差别不大,但在髋臼假体安放时,相差显著。与后外侧入路比较,外侧入路中,髋臼假体的外展角较小,但前倾角较大。 | 李奇 Urban Rydholm Uldis Kerteris Gunna Flivikt Jian-Sheng Wang 林荔军 靳安民 | 2006 | 中国矫形外科杂志2006，14，13： | 10 |
| 2 | ^+2 ^2- : A new high-nitrogen high-energetic material显示文摘 | Gerhard H Manfred K Uldis T | 2001 | Inorg them2001，40，： | 1 |
| 3 | Comparative Growth Analysis of the Facultative Anaerobes Bacillus subtilis , Bacillus licheniformis , and Escherichia coli显示文摘 | Laura D. Clements Brian S. Miller Uldis N. Streips | 2002 | Systematic and Applied Microbiology2002，，2： | 1 |
| 4 | Measurements of heat transfer of multi-layered wall construction with foam gypsum显示文摘 | Juris Skujans Andris Vulans Uldis Iljins etc | 2007 | Applied Thermal Engineering2007，27，7： | 1 |
| 5 | Biotechnological potential of respiring Zymomonas mobilis : A stoichiometric analysis of its central metabolism显示文摘 | Agris Pentjuss Ilona Odzina Andrejs Kostromins David A. Fell Egils Stalidzans Uldis Kalnenieks | 2013 | Journal of Biotechnology2013，，1： | 1 |
| 6 | Stand structure governs the crown colli- sions of todgeple pine 显示文摘 | Mark R Victor J L Uldis S | 2003 | Canadian journal of forest research2003，33，7： | 1 |
| 7 | Dynamics of hip joint effusion after posterior soft tissue repair in total hip arthroplasty显示文摘 | Sarunas T Uldis K Romas J K | 2006 | Inter Orthop (SICOT)2006，30，： | 1 |
| 8 | Placental pathology in fetal growth restriction显示文摘 | Natalija Vedmedovska Dace Rezeberga Uldis Teibe Ivars Melderis Gilbert G.G. Donders | 2010 | European Journal of Obstetrics and Gynecology2010，，1： | 1 |
| 9 | Measurements of heat transfer of multi-layered wallconstruction with foam gypsum显示文摘 | SKUJANS JURIS VULANS ANDRIS ILJINS ULDIS etal | 2007 | Applied ThermalEngineering2007，27，7： | 1 |
| 10 | Adaptive stochastic airline seat inventory control under paramet-ric uncertainty显示文摘 | NICHOLAS N MARLS P ULDIS R | 2013 | Lecture Notes in Computer Sci- ence2013，，7894： | 1 |
| 11 | Struc-ture and properties of the polyurethane foam synthe-sized from castor oil polyols 显示文摘 | Uldis Stirna? Brigita Lazdirja Dzintra Vilsone | 2012 | Journal of CellularPlastics2012，48，6： | 1 |
| 12 | Use of Models in Reverse Thinking显示文摘 | Romans Vitkovskis Uldis Heidingers | 2018 | US-China Education Review(B)2018，8，2： | 0 |
| 13 | Prognostication of Wood Properties Alteration with Modification and Impregnation显示文摘 | Andns Morozovs Edgars Buksans and Uldis Spulle | 2013 | Journal of Chemistry and Chemical Engineering2013，7，9： | 0 |
| 14 | Dielectric Permittivity of Rigid Rapeseed Oil Polyol Polyurethane Biofoams and Petrochemical Foams at Low Frequencies显示文摘Early investigations of dielectric permittivity of rigid polyurethane foams at low frequencies were made on petrochemical-origin foams,mainly by means of parallel plate capacitors.In the present investigation biopolyol was synthesized from Latvia-grown rapeseeds’oil by the transesterification method with triethanolamine,in an environmentally friendly process,without emission of harmful substances,at temperatures 175℃±5℃.Rigid,closed-cell rapeseed oil polyol polyurethane biofoams and petrochemical foams were made ensuring content of the renewable rapeseed oil polyol in ready foams 27 wt.%–29 wt.%.Dielectric permittivity of the polyurethane foams and the underlying monolithic petrochemical-origin polyurethane and biopolyurethane was measured with a non-destructive dielectric spectrometer equipped with a capacitive sensor of one-side access type at 16 discrete frequencies distributed geometrically over the band 10 Hz,…,330 kHz.Permittivity value of the gaseous phase in the closed-cells was estimated to beεg≈1.001 that corresponds to the values,characteristic for the most of gases.Dielectric permittivity of petrochemical polyurethane foams and the mentioned biofoams was compared with permittivity of polyurethane foams from industrial producers Sika JSC and General Plastics Manufacturing Co.Polyurethane foams of the developed formulation exhibit competitive,low dielectric permittivity,not exceeding that of the foams from industrial producers:petrochemical foams up to 550 kg/m^(3) and the mentioned biofoams,comprising the renewable rapeseed oil polyol,up to densities 230–250 kg/m^(3).Considering petrochemical-origin polyurethane foams as a heterogeneous media“Polymer—gaseous phase”,the applicability of the rule of mixture and Maxwell–Garnett equation to model mathematically the dependence of effective dielectric permittivity on the volume fraction of phases was showed. | Ilze Beverte Vairis Shtrauss Aldis Kalpinsh Uldis Lomanovskis Ugis Cabulis Irina Sevastyanova Sergejs Gaidukovs | 2020 | Journal of Renewable Materials2020，8，9： | 0 |
| 15 | Method and Tool to Achieve Necessary Level of Comprehension显示文摘 | Romans Vitkovskis Uldis Heidingers Inese Jakubova Ilze Rikmane Anita Krismane | 2012 | US-China Education Review(A)2012，2，8： | 0 |
| 16 | 自然和人工作的对立层面--参数化冰川展亭显示文摘当今的世界,面对的人工造物比自然要多得多。我们二十一世纪现代社会的日常生活变成处处被“人工”围绕。人类的存在以及主动去调整、适应、顺服和进行组织的痕迹,都包含于构成我们当代世界的几乎每一要素中。 | dja uldis lapins(摄) | 2017 | 中国建筑装饰装修2017，0，9： | 0 |
| 17 | Impact of Probiotic Supplement on the Weight Lose of Sows and Weaning Weight of Piglet显示文摘 | Sanita Bula Uldis Ositis Silvija Strikauska Lilija Degola | 2012 | Journal of Environmental Science and Engineering(A)2012，1，9： | 0 |
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