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| 1 | Geometry Design and Tooth Contact Analysis of Crossed Beveloid Gears for Marine Transmissions显示文摘Beveloid gears,also known as conical gears,gain more and more importance in industry practice due to their abilities for power transmission between parallel,intersected and crossed axis.However,this type of gearing with crossed axes has no common plane of action which results in a point contact and low tooth durability.Therefore,a geometry design approach assuming line contact is developed to analyze the tooth engagement process of crossed beveloid gears with small shaft angle for marine transmission applications.The loaded gear tooth contact behavior is simulated by applying a quasi-static analysis to study the effects of gearing parameters on mesh characteristics.Using the proposed method,a series of sensitivity analyses to examine the effects of critical gearing parameters such as shaft angle,cone angle,helix angle and profile-shift coefficient on the theoretical gear mesh is performed.The parametric analysis of pitch cone design shows that the dominant design parameters represented by the angle between the first principle directions(FPD) and normal angular factor are more sensitive to the shaft and cone angles than they are to the helix angle.The theoretical contact path is highly sensitive to the profile-shift coefficient,which is determined from the theoretical tooth contact analysis.The FPD angle is found to change the distribution of contact pattern,contact pressure and root stress as well as the translational transmission error and the variation of the mesh stiffness significantly.The contact pattern is clearly different between the drive and coast sides due to different designed FPD angles.Finally,a practical experimental setup for marine transmission is performed and tooth bearing test is conducted to demonstrate the proposed design procedure.The experimental result compared well with the simulation.Results of this study yield a better understanding of the geometry design and loaded gear mesh characteristics for crossed beveloid gears used in marine transmission. | ZHU Caichao SONG Chaosheng LIM Teik Chin VIJAYAKAR Sandeep | 2012 | Chinese Journal of Mechanical Engineering2012,25,2: | 11 |
| 2 | Speciation of heavy metals in surface sediments from Suzhou Creek显示文摘九个元素(作为, Cd , Cr , Cu , Fe , Mn , Ni , Pb , Zn )在在从苏州的 7 个地点(地点 1 鈥?)的沉积样品,在上海的溪与参考( BCR )(顺序的抽取( SE ))的社区 Bareau 被分析协议和同时提取的金属( SEM ) /acid 估计金属 bioavailability 的不稳定的硫化物( AVS )过程并且在这个区域的毒物学。结果证明 BCR 抽取能为在沉积估计金属的潜在的 bioavailability 和毒性与 AVS 方法作为一个另外的工具被利用。从 S5 (地点 5 ) 的污染比从另外的地点,特别 Pb, Cu 和 Zn 更严重。在所有这些地点之中,, Fe 的超过 80% 全部的集中在剩余部分存在 Cr,也在剩余部分(超过 50%) 统治的 Mn。当 Cd, Ni 和 Zn (超过 35%) 主要在非稳定的阶段时。Cu 与可氧化的阶段有一种强壮的亲密关系, Pb 从地点变化了到地点。SEM/AVS 比率是在这些沉积的不到一个,结果暗示 Zn 和 Ni 的多数(>40%) 被绑在 AVS。相反, Pb, Cu 和 Cd 由于他们 SEM-Pb, Cu,到相应全部的集中的 Cd 和相对高的 porewater 集中的低定量是到 AVS 的小界限。 | 陈炜 钱光人 LIM Teik Thye CHUI Peng-cheong | 2007 | Journal of Shanghai University(English Edition)2007,11,4: | 10 |
| 3 | 3-Dimensional liver volume assessment in patients with hepatitis B virus-related liver cirrhosis during long-term oral nucleos(t)ide analogues therapy显示文摘AIM To assess the effect of long-term oral nucleos(t)ide analogues(NUCs) therapy on liver volume change in patients with suppress hepatitis B virus(HBV)-related liver cirrhosis.METHODS We reviewed the data of na?ve patients with HBVrelated liver cirrhosis, who had taken oral NUCs therapy, between 2003 and 2007 at Chonbuk University Hospital. We analyzed two consecutive sets of abdominal computerized tomography scans-one at the time oftreatment initiation and another at the second-year follow-up. Liver volume was calculated by 3-dimensional liver extraction volumetry program.RESULTS A total of 55 patients(34 males) were included. There was 114.3 m L ± 167.8 m L(12.9% ± 17.9%) of increase in liver volume during the two years of NUCs therapy(993.8 m L ± 242.8 m L at baseline vs 1108.1 m L ± 263.3 m L at two-year follow-up, P < 0.001). The ratio of the measured baseline liver volume to the estimated standard liver volume was improved from 70.8% to 78.0%. An increase in liver volume was shown not only in patients with compensated cirrhosis(P = 0.046) but also in those with decompensated cirrhosis(P < 0.001). Significant factors for volume increases were Child-Turcotte-Pugh grade and model for end-stage liver disease score improvement without virological breakthrough. In multiple linear regression analysis, delta albumin and delta alanine aminotransferase levels showed a significant association with the increase in liver volume(P = 0.002 and 0.005, respectively).CONCLUSION Long-term oral NUCs therapy in patients with HBVrelated liver cirrhosis lead to significant increase in liver volume assessed with 3-dimensional liver extraction volumetry program. | Chang Hun Lee In Hee Kim Jin Chang Moon Seung Young Seo Seong Hun Kim Sang Wook Kim Seung Ok Lee Soo Teik Lee Dae Ghon Kim Jae Do Yang Hee Chul Yu | 2017 | World Journal of Gastroenterology2017,23,2: | 6 |
| 4 | 考虑齿廓修形与偏心距误差的摆线针轮齿轮副啮合刚度计算(英文)显示文摘摆线针轮减速器由于其结构紧凑、传动比大和高刚性等优点,被广泛应用于工业领域。齿轮的啮合刚度是高准确性齿轮动力学模型的关键参数。然而,现在没有计算摆线针轮齿轮副啮合刚度的分析模型。这是由于其齿轮副背隙确定的困难性以及啮合过程中多齿接触变形的复杂性。本文考虑齿廓修形与偏心距误差的影响,提出了计算摆线针轮齿轮副啮合刚度的新方法。基于轮齿接触分析与非线性赫兹接触理论,分别确定了摆线针轮齿轮副的时变啮合参数与载荷分布,并用于单齿对的接触刚度以及多齿对的扭转刚度的准确计算。通过详细的参数分析,揭示了齿廓修形、应用转矩和偏心距对扭转啮合刚度、承载传动误差、赫兹接触应力和载荷分布因子的影响。该模型可用于对摆线针轮减速器的回差与动态特性的进一步研究,有助于优化其传动精度、振动与噪声等级。 | 李轩 陈兵奎 王亚文 LIM Teik Chin | 2018 | Journal of Central South University2018,25,7: | 5 |
| 5 | 小角度空间交错轴变厚齿轮传动啮合动态特性研究显示文摘为揭示小角度空间交错轴变厚齿轮副的时变啮合特性与非线性动态特性,在精确几何建模的基础上,建立空间小角度交错轴变厚齿轮传动时变啮合模型,获取其时变啮合刚度与时变传动误差;考虑外部载荷与侧隙变化的影响,采用集中参数法建立齿轮传动非线性动力学模型,对其系统非线性特征进行仿真。结果表明外部载荷的增加直接导致齿轮副啮合刚度、传动误差、动态传动误差和动态啮合力的增加,同时啮合刚度的增加使得系统共振频率增加;侧隙的增加使得系统在轻载下出现与单边、双边冲击耦合的突跳现象,在重载下双边冲击区域变大,动态啮合力增加。 | 宋朝省 朱才朝 LIM Teik Chin 罗家元 徐向阳 | 2012 | 振动与冲击2012,31,8: | 5 |
| 6 | Efficacy and safety of ecabet sodium on functional dyspepsia:A prospective,double-blinded,randomized,multi-center controlled trial显示文摘瞄准:在减轻机能性消化不良的症状比较 ecabet 钠和 cimetidine。方法:我们执行了一个多中心,未来,使随机化,双 blinded 控制了试用在病人把 ecabet 钠和 cimetidine 的临床的功效与机能性消化不良作比较。二 -- 有完成 Rome-II 标准的消化不良的症状的 172 个病人从 7 个中心被注册。在学习组(115 个病人) , 1.5 g ecabet 钠一天被给两次。在控制组(121 个病人) , 400 mg cimetidine 一天被给两次。生命的质量的症状和参数在基线被分析,在开始治疗以后的 3, 14,和 28 d。结果:二 -- 136 个病人完成了临床的试用。在治疗的 4 wk 以后,在有消化不良的症状的病人的改进的率不在二个组之间是不同的(77.4% 在 ecabet 组织,分别地, 79.3% 在 cimetidine 组织 P >
0.05 ) 。同样,征兆的改进的率不在 3 d 和 14 d 是不同的。生命的质量的参数没在两个组在学习时期期间显著地变化。在两个组没有临床上重要的不利事件。结论:在有机能性消化不良的病人, ecabet 钠与 cimetidine 有类似的临床的功效。 | Jun Haeng Lee Jae J Kim Ki-Baik Hahm Dong Ho Lee Nayoung Kim Sung Kook Kim Jong Jae Park Seok Reyol Choi Jong Hun Lee Soo Teik Lee Eun Hyun Lee Jong Chul Rhee | 2006 | World Journal of Gastroenterology2006,12,17: | 3 |
| 7 | 冠状动脉分叉病变分类及介入治疗技术策略显示文摘冠状动脉分叉处因为血液湍流和高剪切力而容易形成动脉粥样硬化斑块,分叉病变占经皮冠状动脉介入治疗总量的15%-20%.一个真正的冠状动脉分叉病变是指主支血管(main vessel,MV)和分支血管(side branch,SB)形成倒Y形,并且狭窄直径〉50%. | 杨胜利 LIM Soo Teik Paul T.L.Chiam 刘惠亮 | 2010 | 武警医学2010,21,10: | 3 |
| 8 | 冠状动脉口部病变介入治疗中Szabo技术应用的安全性和可行性显示文摘目的分析冠状动脉口部病变PCI中造影和血管内超声(intra vascular ultrasonography,IVUS)结果 ,评价Szabo技术的成功率、安全性和可行性。方法回顾性分析Szabo技术治疗冠状动脉口部病变患者39例PCI结果。结果经桡动脉途径31例(79.5%),经股动脉途径8例(20.5%)。罪犯血管为左前降支26例(66.7%),右冠状动脉5例(12.8%),左回旋支及钝缘支3例(7.7%),后降支5例(12.8%)。支架置入后,对30例(76.9%)罪犯血管和9例(23.1%)边支血管进行了IVUS检查。手术成功36例(92.3%)。所有患者造影成功率为100%。IVUS检测罪犯血管准确支架置入到口部患者29例(96.7%)和支架近端轻度凸出患者1例(3.3%)。结论 Szabo技术用于冠状动脉口部病变PCI中是安全可行的,而且具有极高的造影成功率。经过IVUS检查证实大部分支架在冠状动脉口部病变处能准确置入。 | 杨胜利 刘惠亮 Aaron Wong Jack Tan 刘英 张蛟 LIM Soo Teik Paul Chiam Stanley Chia | 2011 | 中华老年心脑血管病杂志2011,13,10: | 3 |
| 9 | Szabo技术在口部病变经皮冠状动脉介入治疗中应用的安全性和可行性(英文)显示文摘背景和目的:冠状动脉口部病变的经皮冠状动脉介入(PCI)治疗手术操作难度大,易有并发症,既要支架准确植入口部病变,又要边支不受压。本研究探讨解决这一难题的Szabo技术的成功率、安全性和可行性。方法:Szabo技术是利用边支导丝(抛锚导丝)穿过支架最靠近边支的支架网眼,防止支架前进时停止在口部病变外,保证主支导丝穿过支架腔。作者回顾性分析利用Szabo技术治疗39例病人冠状动脉口部病变的结果。手术操作成功定义:支架没有脱落,边支导丝没有退出。造影成功定义:支架准确植入到口部,而边支没有受压。血管内超声定义成功:支架准确植入到口部,近段没有突出,支架完全覆盖病变。39例病人中,男性28例,女性11例,年龄43~79,平均(65±12)岁。6F和7F指引导管分别用于35例(89.7%)和4(10.3%)例病人。经桡动脉途径31(79.5%)例和经股动脉途径8(20.5%)例。病变相关血管:前降支(LAD)26(66.7%)例,右冠(RCA)5(12.8%)例,旋支及钝缘支(LCX-OM)3(7.7%)例,后降支(PDA)5(12.8%)例。支架植入后30(76.9%)例病变相关血管和9(23.1%)例边支血管经过了血管内超声(IVUS)检查。结果:手术操作成功:36例(92.3%),这36例造影均成功(100%)。IVUS检测:支架准确植入口部者96.7%(29例/30例),支架近段轻度凸出的只有1例(3.3%)。没有发生严重并发症。结论:结果说明Szabo技术用于冠状动脉口部病变PCI成功率很高,是安全和可行的,值得推广。 | 杨胜利 刘惠亮 Aaron Wong Jack Tan 刘英 张蛟 LIM Soo Teik Paul Chiam Stanley Chia Koh Tian Hai Philip Wong | 2011 | 心血管康复医学杂志2011,20,1: | 3 |
| 10 | Verification of the acute physiology and chronic health evaluation scoring system in a Hong Kong intensive care unit显示文摘 | Teike OH Robert H Steve S | 1993 | Crit Care Med1993,21,5: | 1 |
| 11 | Verification of the acute physiology and chronic health evaluation scoring system in a HongKong intensive care unit 显示文摘 | Teik OH Hutehinson R Short S | 1993 | Crit Care Med1993,21,5: | 1 |
| 12 | Education websites and their benefits to potential international students: a case study of higher education service providers in Malaysia 显示文摘 | Teik Chooi Ooi Henry Wai Leong Ho Siti Amri | 2010 | Current Issues in Education2010,13,1: | 1 |
| 13 | Dynamic of Hypoid Gear Transmissions with Nonlinear Time-Varying Mesh Characteristics 显示文摘 | CHENG Yu-ping TEIK C Lim | 2003 | Journal of Mechanical Design2003,,125: | 1 |
| 14 | Extra-hepatic portal vein aneurysm: A case report, overview of the literature and suggested management algorithm显示文摘 | Ruichong Ma Anita Balakrishnan Teik Choon See | 2012 | Int J Surg Case Rep2012,3,11: | 1 |
| 15 | Analysis of time-varying rolling element bearing characteristics显示文摘 | Hoon-Voon Liewa Teik C Limb | | 0,,3: | 1 |
| 16 | Anti-oxidant effects of the extracts from the leaves of Chronmlaena odorata on human dermal fibroblasts and epidermal keratinocytes against hydrogen peroxide and hypoxanthine-xanthine oxidase induced damage显示文摘 | THANG P T PATRICK S TEIK L S | 2001 | Burns2001,27,4: | 1 |
| 17 | Comparative analysis of actuator concepts for active gear pair vibration control 显示文摘 | Yuan H G Mingfeng L Teik C L | 2004 | Joumal of Sound and Vibration2004,269,12: | 1 |
| 18 | Experimental study on active vibration control of a gearbox system 显示文摘 | Yuan H G Teik C L Shepard W S | 2005 | Journal of Sound and Vibration2005,282,345: | 1 |
| 19 | A Phase Matrix for a De-nse Discrete Random Medium: Evaluation of Volume Scatt-ering Coefficient显示文摘 | Chuah Hean Teik Tjuatja Saibun | 1996 | IEEE Trans Geosci Remote Sensing1996,34,5: | 1 |
| 20 | Guidelines for the seloction of highly effectively siRNA sequence for mammalian and chiek RNA interference显示文摘 | Ui Teik Naito Y Takabashi F | 2004 | Nucleie Acids Res2004,32,3: | 1 |