نتایج جستجو برای: ناپایدرای در edm
تعداد نتایج: 758970 فیلتر نتایج به سال:
Mounting evidence indicates that erectile dysfunction medications (EDMs) have become increasingly used as a sexual enhancement aid among men without a medical indication. Recreational EDM use has been associated with increased sexual risk behaviors, an increased risk for STIs, including incident HIV infection, and high rates of concomitant illicit drug use. The aim of the present study was to i...
initiated a search for an electric dipole moment (EDM) of the neutron and obtained what was considered at the time a remarkably precise result, consistent with zero.1 Thus began a long line of ever more sensitive EDM experiments on neutrons, atoms, and molecules. Although no EDM has yet been found, the limits set have had decisive influences on elementary particle theories. Now, experiments und...
We discuss in detail the search for a permanent electric dipole moment (EDM) of the 199Hg atom reported by Griffith et al. [Phys. Rev. Lett. 102, 101601 (2009)]. The upper bound, d(199Hg) < 3.1 × 10−29 e cm (95% C.L.), is a factor of 7 improvement over the best previous EDM limit for 199Hg, provides the most sensitive probe to date for EDMs in diamagnetic atoms, and sets new limits on time-reve...
Tribological characteristics of fine-grained WC–8 wt%Ni with different surface finishing conditions corresponding to sequential wire electrical discharge machining (wire-EDM) or grinding were investigated by performing dry reciprocating sliding experiments on TE77 pin-on-plate equipment with WC–6 wt%Co as mating material. Surface finishes and wear surfaces were characterized using surface topog...
INSTRUCTIONS The diameter of silicon wafer becomes larger in order to increase the number of chips per one wafer. For such a larger diameter silicon ingot is mainly sliced by using multi-wire method, in which a long thin wire is used with slurry. In this method, several hundreds of wafers could be sliced at the same time. However there are still problems remained, such as large cracks, slurry t...
This paper reports on ongoing work about heterogeneous and cross-domain data conversion to a common data model in EuropeanaConnect. The “Europeana Data Model” (EDM) provides the means to accommodate data from different domains while mostly retaining the original metadata notion. We give an introduction to the EDM and demonstrate how important metadata principles of two different metadata standa...
If electrons had an electric dipole moment (EDM) they would induce EDMs of atoms. The ratio of the atomic EDM to the electron EDM for a particular atom is called the enhancement factor, R. We calculate the enhancement factor for the francium and gold atoms, with the results 910± ∼ 5% for Fr and 260± ∼ 15% for Au. The large values of these enhancement factors make these atoms attractive for elec...
If electrons had an electric dipole moment (EDM) they would induce EDMs of atoms. The ratio of the atomic EDM to the electron EDM for a particular atom is called the enhancement factor, R. We calculate the enhancement factor for the francium and gold atoms, with the results 910± ∼ 5% for Fr and 260± ∼ 15% for Au. The large values of these enhancement factors make these atoms attractive for elec...
چکیده: گرادیان دمایی بالایی که در طی فرآیند edm درون قطعه کار ایجاد می شود منجر به تنشهای پسماند در ناحیه ای کوچک از سطح می شود. این تنش ها می توانند منجر به ایجاد ترک ها ی ریز در سطح ، کاهش مقاومت و عمر خستگی ، و در نهایت شکست شوند. در این پایان نامه با استفاده از خواص متغیر با دمای فولاد ابزار aisi h13 ، یک مدل المان محدود (fem) برای تخمین توزیع درجه حرارت در قطعه کار ، اندازه چاله مذاب و تخ...
The Surveyor General of New South Wales is a verifying authority under the National Measurement Act 1960 and responsible for ensuring that surveyors use verified measuring equipment. According to the Surveying and Spatial Information Regulation 2012, surveyors are required to verify their Electronic Distance Measurement (EDM) equipment in relation to an Australian standard of measurement of len...
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