نتایج جستجو برای: pressing forming

تعداد نتایج: 127331  

Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2008
Chester G Moore

In addition to their importance to human and animal health, vector-borne diseases are fascinating systems to study. The involvement of multiple species whose biologies and life cycles cover differing space and time scales makes it extremely difficult to predict epidemics. A single environmental factor may have opposite impacts on the system at different points in time. Patchiness at different g...

2013
Martin Michalowski Szymon Wilk Wojtek Michalowski Di Lin Ken Farion Subhra Mohapatra

There is a pressing need in clinical practice to mitigate (identify and address) adverse interactions that occur when a comorbid patient is managed according to multiple concurrently applied diseasespecific clinical practice guidelines (CPGs). In our previous work we described an automatic algorithm for mitigating pairs of CPGs. The algorithm constructs logical models of processed CPGs and empl...

2016
Tamer BAŞKAL

In the present study, the 3-dimensional artistic relief designs on the leather belt used to create CNC tool path and the parameters were investigated in the production of hot pressing molds. The 3-dimensional relief patterns obtained with the help of belt pressure molds consist of marks pressed along the belt with the hot press. These intricate patterns create the varieties in the world of wear...

Journal: :Ultrasonics 2013
F Djavanroodi H Ahmadian K Koohkan R Naseri

Equal channel angular pressing (ECAP) is one of the most prominent procedures for achieving ultra-fine grain (UFG) structures among the various severe plastic deformation (SPD) techniques. In this study, the effect of ultrasonic vibration on deformation behavior of commercial pure aluminum in the ECAP process is analyzed successfully using three dimensional (3D) by finite element methods (FEMs)...

2007
Andrew J. Newman

Hot Isostatic Pressing (HIP'ing) is one of several processes used for consolidating porous materials (such as metal powders) to high density. The equations describing the HIP'ing system dynamics are immensely complicated and highly nonlinear, thus complicating any controller design for the system. Further complications arise due to the fact that one of the system's states, grain size, cannot be...

Journal: :Key Engineering Materials 2022

Through the patented process of hybrid forming [1], it is possible to produce a bonded metal-plastic-hybrid component in one step with help an edge-sealed pressing tool. Such exhibits enormous energy absorption potential. To use this complete potential, reliable FE-Modelling necessary, that can exactly replicate complex material layup consisting isotropic metal, very thin bonding layer, and ani...

Journal: :Journal of physics 2022

Abstract The forming of the joint profile is an important stage in technological process manufacturing joints for wood splicing. A promising direction improving this technology development waste-free methods formation high-quality finger using technique local pressing longitudinal direction. introduction into production requires a reasonable choice parameters modes. One most output parameter ha...

2001
Bing-Yun Li Li-Jian Rong Yi-Yi Li

An elemental powder sintering (EPS) technique has been developed for the synthesis of porous NiTi alloy, in which Ni and Ti powders are used as the reactants and TiH2 powder is added as a pore-forming agent and active agent. Effects of various experimental parameters (sintering temperature, sintering time, and TiH2 content) on the porosity, pore size and pore distribution as well as phase compo...

2001
M. S. Oey C. J. Clarke P. Massey

The current understanding of mechanical feedback is reviewed by evaluating the standard, adiabatic model for shell formation and evolution. This model is relevant to phenomena ranging from individual stellar-wind bubbles to galactic superwinds, forming the basis for our understanding of the multiphase ISM, IGM, and galactic evolutionary processes. Although significant discrepancies between the ...

2016
Thilo Krause Sabrina Baader Benjamin Erb Lukas J. Gooßen

Amide bond-forming reactions are of tremendous significance in synthetic chemistry. Methodological research has, in the past, focused on efficiency and selectivity, and these have reached impressive levels. However, the unacceptable amounts of waste produced have led the ACS GCI Roundtable to label 'amide bond formation avoiding poor atom economy' as the most pressing target for sustainable syn...

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