نتایج جستجو برای: improvement of die corner filling

تعداد نتایج: 21275476  

Journal: :Mechanics & Industry 2021

In this paper, local-thickened plates are adopted for aluminum alloy square cups stamping with relatively low values of residual stresses and small radius at the bottom corner. By utilizing numerical experimental methods, effects process parameters plate local thickening on stress distribution hot stamped studied. Furthermore, influence corner is also investigated. The results showed that an in...

Journal: :EPL 2022

We consider the Dirac cones and higher-order topological phases in quasi-continuous media of classical waves (e.g., photonic sonic crystals). Using crystals as prototype examples, we revisit some known systems study acoustics. show emergence various band gaps same motherboard by tuning geometry system. provide a pedagogical review underlying physics methodology via bulk-edge-corner corresponden...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده علوم انسانی 1393

learning-oriented assessment seeks to emphasise that a fundamental purpose of assessment should be to promote learning. it mirrors formative assessment and assessment for learning processes. it can be defined as actions undertaken by teachers and / or students, which provide feedback for the improvement of teaching and learning. it also contrasts with equally important measurement-focused appro...

2015
Zongtao Li Yong Tang Xinrui Ding Cheng Li Dong Yuan Yifan Lu

This paper proposed a half-experimental model to reconstruct the die-bonding thermal path of highpower light-emitting diodes (HP-LEDs). In this model, the partially insufficient filling of bonding materials and their directional/random distributions (“filling state” for short) have been taken into consideration. Both the silver-paste structure and the Au/Sn-eutectic structure were analyzed and ...

Journal: :CoRR 2000
George Yong Liu Ray F. Zhang Kelvin Hsu Lawrence Camilletti

Chip-level CMP modeling is investigated to obtain the post-CMP film profile thickness across a die from its design layout file and a few film deposition and CMP parameters. The work covers both HDP and conformal CVD film. The experimental CMP results agree well with the modeled results. Different algorithms for filling of dummy structure are compared. A “smart” algorithm for dummy filling is pr...

Journal: :Physical review 2022

We theoretically study emergent edge and corner states in monolayer blue phosphorus (blue phosphorene) using the first-principles calculation tight-binding model. show that existence of Wannier orbitals at every bond center yields both zigzag armchair nanoribbons. The properties can be well described by a simple effective Hamiltonian for uncoupled orbitals, where structural relaxation near boun...

حسنی, فرزانه, سید شریفی, رئوف, صدقی, محمد,

Application of zinc can improve the tolerance and resistance of plants especially sunflower to environmental stresses and be effective on kernel set and yield. To investigate the effects of zinc oxide nanoparticles on the length, effective period, the rate of kernel filling and kernel weight in sunflower cultivars, a factorial experiment based on randomized complete block design with three repl...

2013
Dian Yu Haibo Li Taylor Cassidy Qi Li Hongzhao Huang Zheng Chen Heng Ji Yongzhong Zhang Dan Roth

This year the RPI-BLENDER team participated in the following four tasks: English Entity Linking, Regular Slot Filling, Temporal Slot Filling and Slot Filling Validation. The major improvement was made for Regular Slot Filling and Slot Filling validation. We developed a fresh system for both tasks. Our approach embraces detailed linguistic analysis and knowledge discovery, and advanced knowledge...

2014
D. NOVOSELOVIĆ

D. Novoselović, I. Budić, I. Samardžić, Mechanical Engineering Faculty in Slavonski Brod, University of Osijek, Croatia The influence of technological parameters on residual stresses in pressure die castings is analysed in this paper. In order for the residual stresses to be as low as possible the optimization of technological parameters is necessary. The centrally composed plan of experiment 2...

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