2,633,402 research outputs found
Precision glasscutter
Glass is positioned against preset stops; and glasscutter, which is permanently mounted in carrier support by cutter guide rails, is used to scribe glass at predetermined length. Glass is placed against predetermined groove at opposite end to correspond with setting of cutter carrier support and it is broken on end of cutter base
Precision Electroweak Measurements
Recent electroweak precision measurements from e+e- and pbarp colliders are
presented. Some emphasis is placed on the recent developments in the heavy
flavor sector. The measurements are compared to predictions from the Standard
Model of electroweak interactions. All results are found to be consistent with
the Standard Model. The indirect constraint on the top quark mass from all
measurements is in excellent agreement with the direct Mt measurements. Using
the world's electroweak data in conjunction with the current measurement of the
top quark mass, the constraints on the Higgs mass are discussed.Comment: 20 pages, 17 figures, Latex. Talk given at the Meeting of the
Division of Particles and Fields (DPF96), Minneapolis, August 10-15, 1996 (to
be published in the proceedings
Precision Interfaces
Building interactive tools to support data analysis is hard because it is not
always clear what to build and how to build it. To address this problem, we
present Precision Interfaces, a semi-automatic system to generate task-specific
data analytics interfaces. Precision Interface can turn a log of executed
programs into an interface, by identifying micro-variations between the
programs and mapping them to interface components. This paper focuses on SQL
query logs, but we can generalize the approach to other languages. Our system
operates in two steps: it first build an interaction graph, which describes how
the queries can be transformed into each other. Then, it finds a set of UI
components that covers a maximal number of transformations. To restrict the
domain of changes to be detected, our system uses a domain-specific language,
PILang. We give a full description of Precision Interface's components,
showcase an early prototype on real program logs and discuss future research
opportunities
Realizing arbitrary-precision modular multiplication with a fixed-precision multiplier datapath
Within the context of cryptographic hardware, the term scalability refers to the ability to process operands of any size, regardless of the precision of the underlying data path or registers. In this paper we present a simple yet effective technique for increasing the scalability of a fixed-precision Montgomery multiplier. Our idea is to extend the datapath of a Montgomery multiplier in such a way that it can also perform an ordinary multiplication of two n-bit operands (without modular reduction), yielding a 2n-bit result. This
conventional (nxn->2n)-bit multiplication is then used as a “sub-routine” to realize arbitrary-precision Montgomery multiplication according to standard software algorithms such as Coarsely Integrated Operand Scanning (CIOS). We
show that performing a 2n-bit modular multiplication on an n-bit multiplier can be done in 5n clock cycles, whereby we assume that the n-bit modular multiplication takes n cycles. Extending a Montgomery multiplier for this extra
functionality requires just some minor modifications of the datapath and entails a slight increase in silicon area
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