نتایج جستجو برای: axial and selectivecoding

تعداد نتایج: 16834876  

Optimization of specific power of axial flux permanent magnet brushless DC (PMBLDC) motor based on genetic algorithm optimization technique for an electric vehicle application is presented. Double rotor sandwiched stator topology of axial flux permanent magnet brushless DC motor is selected considering its best suitability in electric vehicle applications. Rating of electric motor is determined...

Journal: :journal of dental research, dental clinics, dental prospects 0
kianoosh torabi ardekani ahmad hassan ahangari leila farahi

background and aims. cad/cam systems facilitate the use of zirconia substructure materials for all-ceramic copings. this in vitro study investigated the marginal and internal fit of zirconia copings made with cad/cam system and slip-casting method. materials and methods. sixteen cad/cam made zirconia copings and 16 slip-cast made zirconia copings were fabricated and cemented with glass-ionomer ...

Journal: :international journal of civil engineering 0
k. wang college of civil science and engineering, yangzhou univercity s.f. yuan college of civil science and engineering, yangzhou univercity d.f. cao phd professor, college of civil science and engineering, yangzhou univercity w.z. zheng phd professor, school of civil engineering, harbin institute of technology

this paper describes experimental and numerical investigations on two specimens of frames composed of steel reinforced concrete beam and angle-steel concrete column under horizontal low cyclic loading. based on the test results, the relationship curves of the horizontal load-displacement and the failure modes are acquired. meanwhile the hysteretic behaviors, skeleton curves, stiffness degradati...

1994
Shyh-Shiuh Lih Yoseph Bar-Cohen

The critical role played by adhesive bonds in lap joints is well known. A good knowledge of the mechanical properties of adhesive bonds in lap joints is a prerequisite to the design and reliable prediction of the performance of these bonded structures. Furthermore, the lap joint may be subject to high-temperature environments in service. Early detection of the degree of thermal degradation in a...

The performance prediction of axial flow compressors at different speeds and under various pressure ratio conditions are still being developed because of costly empirical experiments. One-dimensional modeling is a simple, fast and accurate method for performance prediction in any type of compressor with different geometries. In this approach, inlet flow conditions and compressor geometry are kn...

Journal: :journal of dentistry, tehran university of medical sciences 0
hossein najafi prostodontist, post doc student, dental implant research center, dentistry research institute, tehran university of medical science, iran. hakimeh siadat professor, dental implant research center, dentistry research institute, tehran university of medical sciences and department of prosthodontics, faculty of dentistry, tehran university of medical sciences, tehran, iran. solmaz akbari department of periodontics, tehran university of medical sciences school of dentistry, tehran, iran amirreza rokn professor, dental implant research center, dentistry research institute, periodontics department, tehran university of medical science, iran.

objectives: the purpose of this study was to compare the outcomes of immediate and delayed rehabilitation of edentulous jaws by means of two straight and two tilted implants after one year of function. materials and methods: thirty consecutive patients (16 males, 14 females) were enrolled in this study. two anterior straight and two posterior tilted implants were placed in each patient. accordi...

Journal: :journal of mining and environment 0
m. nikkhah school of mining, petroleum & geophysics engineering, shahrood university of technology, shahrood, iran seyed s. mousavi school of mining, petroleum & geophysics engineering, shahrood university of technology, shahrood, iran sh. zare school of mining, petroleum & geophysics engineering, shahrood university of technology, shahrood, iran o. khademhosseini school of civil engineering, shahrood university of technology, shahrood, iran

the joints between segmental rings can withstand a certain amount of bending moment as well as axial and shear forces. generally, in the structural analysis of tunnel segmental lining, the joints can be modeled as elastic hinges or rotational springs, and their rigidity should be demonstrated in terms of the rigidity of the joints or their rotational stiffness. therefore, the bending moment act...

Journal: :بینا 0
محمد پاکروان m pakravan ophthalmic epidemiology research center, shahid beheshti university of medical sciences, tehran, iranمرکز تحقیقات چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران اعظم علوانی a alvani shahid bahonar university, kerman, iranمرکز تحقیقات چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران الهام قهاری e ghahari مهدی یاسری m yaseri دانشکده بهداشت- دانشگاه علوم پزشکی تهران

trabeculectomy is the most common procedure performed in glaucoma patients to reduce intraocular pressure for a long-time period. this intervention can cause alterations in axial length (0.1-0.9 mm), anterior chamber depth (0.11±0.22 mm), and keratometry readings (1.07±1.14 diopter). these changes may linger for more than one year and may negatively affect the precision of intraocular lens powe...

Journal: :journal of mining and environment 0
a. mirzaghorbanali school of civil, mining, and environmental engineering, university of wollongong, nsw, australia n. aziz school of civil, mining, and environmental engineering, university of wollongong, nsw, australia

the load transfer mechanisms of cable bolts differ from those for normal rebar bolts. the cable bolts used in mines are basically steel strands with different constructions depending on the number of wires or elements and the way they are laid. tendon bolts (rebar and cable) are normally evaluated for their strength and load transfer properties. the tendon strength can be evaluated by the tensi...

Journal: :computational methods in civil engineering 2011
a. arjangpay m. darvizeh r. ansari gh. zarepour

in this paper the meshless local petrov-galerkin (mlpg) method is implemented to study the buckling of isotropic cylindrical shells under axial load. displacement field equations, based on donnell and first order shear deformation theory, are taken into consideration. the set of governing equations of motion are numerically solved by the mlpg method in which according to a semi-inverse method, ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید