نتایج جستجو برای: punching

تعداد نتایج: 1046  

Journal: :The International Journal of Advanced Manufacturing Technology 2021

Abstract Punching is a wide-spread production process, applied when massive amounts of the ever-same cheap parts are needed. The punching process sensitive to multitude parameters. Unfortunately, precise dependencies often unknown. A prerequisite for optimal, reproducible and transparent alignment knowledge how exactly parameters influence quality part, which in turn requires quantitative descr...

Journal: :Bitnet: jurnal pendidikan teknologi informasi 2022

Mata pelajaran Pendidikan jasmani olahraga dan kesehatan (penjasorkes) merupakan mata yang mempunyai aspek luas. Tidak hanya bertujuan untuk meningkatan fisik saja, namun penjasorkes berusaha meningkatkan pengetahuan, kemampuan sosial dengan melatih kejujuran sportifitas, kerja sama, mengembangkan sikap positif dalam diri. Tujuan penelitian ini adalah mengetahui apakah penggunaan media Punching...

2013
Duncan Rowland Conor Linehan

This paper presents the design and evaluation of “the man-machine interface” a punchable interface designed to explore and criticize the values inherent in modern systems that favour one type of user (linguistically and technically gifted) and alienate another (physically gifted). In the study, participants used the device to express their opinions and then engaged in a group discussion about t...

2003
Ergun Akleman Vinod Srinivasan Jianer Chen

In this paper, we describe a technique, with roots in topological graph theory, that we call rind modeling. It provides for the easy creation of surfaces resembling peeled and punctured rinds. We show how the method’s two main steps of 1) creation of a shell or crust like the rind of an orange, and 2) opening holes in the crust by punching or peeling can be encapsulated into a real time semi-au...

Journal: :Cell 1997
Jamie Rossjohn Susanne C Feil William J McKinstry Rodney K Tweten Michael W Parker

The mechanisms by which proteins gain entry into membranes is a fundamental problem in biology. Here, we present the first crystal structure of a thiol-activated cytolysin, perfringolysin O, a member of a large family of toxins that kill eukaryotic cells by punching holes in their membranes. The molecule adopts an unusually elongated shape rich in beta sheet. We have used electron microscopy da...

2009
Zihui Wei Qinghai Li Donglin Wang Yumei Tian

TRIZ is used to resolve invention problems. ARIZ is the most powerful systematic method which integrates all of TRIZ heuristics. Definition of ideal final result (IFR), identification of contradictions and resource utilization are main lines of ARIZ. But resource searching of ARIZ has fault of blindness. Alexandr sets up mathematical model of transformation of the hereditary information in an i...

Journal: :Key Engineering Materials 2022

The ongoing digitization of production processes provides new possibilities and potentials for process monitoring forming stamping processes. component quality achievable by these is strongly dependent on the properties sheet metal material, so that a permanent digital recording material data offers high potential each produced. In this context, presented paper deals with novel AI-based method ...

2013
Somsak Vanit-Anunchai

The simultaneous-open procedure of the Datagram Congestion Control Protocol (DCCP), RFC 5596, was published in September 2009. Its design aims to overcome DCCP weaknesses when the Server is behind a middle box, such as Network Address Translators or firewalls. The original DCCP specification, RFC 4340, only allows the Client to initiate the call. The call request cannot reach the Server behind ...

Journal: :Journal of Materials Processing Technology 2023

This paper presents a validated finite element modeling approach for simulating shear cutting, needing minimal amount of experimental characterization. Only one uniaxial tensile test and force–displacement relationship from punching experiment are needed calibration, with maintained prediction accuracy compared to more experimentally demanding approaches. A key ingredient is the observation tha...

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