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1Four-axis trochoidal toolpath planning for rough milling of aero-engine blisks显示文摘The Blade Integrated Disk(Blisk) is one of the key components in the aero-engine, it is generally manufactured by the multi-axis milling and almost 90% raw materials are removed. To avoid the full immersion of a cutter in the rough machining of a blisk channel, the trochoidal milling is a promising strategy since it can keep a small immersion angle in the rough milling process while maintaining the high machining efficiency. However, while toolpaths are being planned for the trochoidal milling process, the conventional methods are mainly for the planar machining area with fixed tool orientations, which cannot be used for complex channels where the multi-axis machining should be employed. To this end, this paper presents a four-axis trochoidal toolpath planning method with a ball-end cutter, and thus the blisk channel can be machined efficiently.For this to happen, the trochoidal paths are planned in the parametric domain and then mapped into the physical domain, with tool orientations controlled by the quaternion interpolation method to have smooth tool movement along the toolpaths. Both geometric simulation and physical milling experiments of the proposed method have convincingly demonstrated the validation of the proposed method.Ming LUO Ce HAH Hafiz M.HAFEEZ 2019Chinese Journal of Aeronautics2019,32,8:9
2Targeted Blue Nanoparticles as Photoacoustic Contrast Agent for Brain Tumor Delineation显示文摘把一个肿瘤与非肿瘤的组织区分开来在癌症外科期间是一项挑战性的任务。几次尝试被做了使用可见或荧光灯的代理人在外科期间帮助一个肿瘤的可视化。我们描述一个新奇方法描出大脑肿瘤,用一种高度敏感的 photoacoustic 成像技术,那被用作一个对比代理人的指向肿瘤的蓝 nanoparticles 提高。幽灵并且在老鼠大脑上的实验,前 vivo,在描出表明 photoacoustic 成像的高敏感在集中包含对比代理人的肿瘤很比由肉眼为可视化需要降低。为 nanoparticles 的系统的察觉的限制是水(到 0.84 mol/L Coomassie 蓝染料的等价物) 里的大约 0.77 g/mL。当与强烈光的吸收对比代理人使用了时,现在的探索学习建议那 photoacoustic 成像,能由揭示肿瘤的分发和程度 intraoperatively 便于癌症外科。Aniruddha Ray Xueding Wang Yong-Eun Koo Lee Hoe Jin Hah Gwangseong Kim Thomas Chen Daniel A. Orringer Oren Sagher Xiaojun Liu Raoul Kopelman 2011Nano Research2011,4,11:5
3Outcome of trabeculectomy in hospital Melaka,Malaysia显示文摘AIM:To study the success and outcome of trabeculectomy in Hospital Melaka.· METHODS:Medical records of all patients who underwent trabeculectomy between January 1,2007 and October 31,2010 whom were followed up for at least 6 months postoperatively in Hospital Melaka were retrospectively reviewed.· RESULTS:A total number of 117 eyes of 91 patients with the age range between 12 to 84 years underwent primary trabeculectomy(n =20,17.1%),combine trabeculectomy with cataract surgery(n =90,76.9%),repeat trabeculectomy(n=5,4.3%),and combine repeat trabeculectomy with cataract surgery(n =2,1.7%).The disease spectrum includes primary open-angle glaucoma(POAG)(54 patients,59.3%),priamry angle-closure glaucoma(PACG)(14 patients,15.4%),secondary glaucomas(19 patients,20.9%) and juvenile glaucomas(4 patients,4.4%).Preoperative mean intraocular pressure(IOP) was(24.69±8.67)mmHg as compared to postoperative mean IOP of(15.81±6.66)mmHg,(15.07±4.72)mmHg and(15.68±3.65)mmHg at 6-month,12-month and 24-month respectively.Eighty-two point one percent of eyes(n =96) achieved complete success(CS),12.8%(n =15) with qualified success(QS) and only 5.1%(n = 6) failed at 6 month with two of them warrant other filtering surgery.At twelve months,trabeculectomy with CS was 71.6%(n =63),QS in 22.7%(n =20) and failure in 5.7%(n = 5).Sixty-seven point five percent(n =27) attained CS,20.0%(n =8) with QS while 12.5%(n =5) failed at 24 month postoperative.· CONCLUSION:As the understanding of the lower the IOP,the better the patients retaining the visual function,trabeculectomy is significantly a choice of treatment in uncontrolled glaucoma.This study concluded that trabeculectomy performed in Hospital Melaka has produced significant success as compared to other studies.Moon Heng Hah Raja Norliza Raja Omar Juliana Jalaluddin Nor Fadzillah Abd Jalil Anusiah Selvathurai 2012International Journal of Ophthalmology(English edition)2012,5,3:4
4Influence of Splitter Blades on the Flow Field of a Centrifugal Pump:Test-Analysis Comparison显示文摘G. Kergourlay M. Younsi F. Bakir R. Rey Chunill Hah 2007International Journal of Rotating Machinery2007,,:2
5A report of the American college of/American heart association task force on practice guidelines显示文摘ACC/HAH guidelines for the management of patiens with unstable angina and non- ST - segment elevation myocardial infarction 2000JACC2000,36,:1
6A three-dimensional shock loss model applied to an aft-swept, transonic compressor rotor显示文摘Puterbaugh S L Copenhaver W W Hah C 1997ASME Journal of Turbomaehin-ery1997,119,:1
7Open-loop operation of MEMS-based 1× N wavelength-selective swith with long-term stability and repeatability显示文摘Tsai Jui-che Huang Sophia Hah Dooyoung 2004IEEE Photo Technool Lett2004,16,4:1
8Role of laccase in lignin degradation by white-rot fungi显示文摘YOUN H D HAH Y C KANG S 1995Ferns Microbiology Letters1995,132,3:1
9Synthesis of poly(ethynylptatinumporphyrin) and its application as an oxygen pressuresensitive paint 显示文摘HAH H SAKAI T ASAI KM 2003Maermnoleenlar Symposia2003,204,1:1
10The shock solution for a class of nonlinear equation显示文摘Hah Xianglin 2002Acta Scientiarum Naturalium Universitatis Sungatseni2002,41,:1
11A new general mathe- matical framework for bioluminescence tomography 显示文摘Cheng X Gong R Hah W 2008Comput Methods Appl Mech Engrg2008,197,:1
12Effects of inlet dis-tortion on the flow feild in a transonic compressor rotor显示文摘Hah C Rabe D C Sullivan T J 1998ASME Journal of Turbomachinery1998,120,2:1
13Protective effect of anisodamine on reperfusion injury of skeletal muscles in rabbit显示文摘Wei X Zhang Z Hah L 1998Acta Orthop Scand1998,69,6:1
14The use of gradient analysis studies in advancing our understanding of the ecology of ur-banizing landscape: current status and future direction显示文摘MCDONNELL M J HAHS A K 2008Landscape Ecology2008,23,:1
15Potycaprolactonc-b-poly(ethylenc oxide) copolymcr micellcs as a delivery for dihydrotcstosterone显示文摘Allen C Hah J Yu Y 2000J Controlled Release2000,63,:1
16Mathematical theory and numerical analysis of bioluminescence tomography显示文摘Hah W Cong W X Wang G 2006Inverse Problems2006,22,:1
17Data mining: An overview from a database perspective 显示文摘Chen M S Hah J W Yu P S 1996IEEE Transaction on Knowledge and Data Engineering1996,18,6:1
18Development of hub corner stall and its influence on the performance of axial compressor blade rows 显示文摘Hah C Loellbaeh J 1999ASME Journal of Turbomachinery1999,121,:1
19New antihepatotoxic cerebroside from Lycium chinense fruits显示文摘 CHOI Y H HAH H 1997J Nat Prod1997,60,3:1
20CT of prominent pericolic or perienteric vasculature in patients with Crohn' s disease: correlation with clinical disease activity and findings on barium studies显示文摘LEES S HAH K YANG S K 2002Am J Roentgenol2002,179,4:1
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