H=CIRCLE(CENTER,RADIUS,NOP,STYLE)
This routine draws a circle with center defined as
a vector CENTER, radius as a scaler RADIS. NOP is
the number of points on the circle. As to STYLE,
use it the same way as you use the rountine PLOT.
Since the handle of the object is returned, you
use routine SET to get the best result.
Wirelessmeshnetworkingisahotandgrowingtopic,stillinitsinfancyin
some ways, whilst already shown to be capable in others. From a military
beginning, mesh networks moved to civilian use and are now being
deployed worldwide as both local area networks (LANs) and metro-
politan area networks (MANs). However, these deployments are still
‘leading edge’ and it is not yet clear what the most enduring applications
of mesh will be – particularly as the market moves from early adopters
towards widespread take up.
This book was born from the perception that there is much more to spectrum use
and sharing than one sees reflected in publications, whether academic, commercial
or political. the former – in good research style – tend towards reductionism and
concentrate on specific, detailed aspects. commercial publications tend to empha-
size the positive aspects and they tend to put promise above practice. Given the ever
increasing pace of technology development and recent successes of new wireless
technologies, some pundits predict large-scale spectrum scarcity, potentially lead-
ing to economic catastrophe. Although economic theory has a hard time explaining
recent events that shook the world economy, the notion of spectrum scarcity is intui-
tively acceptable, even if not correct or immediately relevant.
This text, ESD Basics: From Semiconductor Manufacturing to Product Use was initiated on
the need to produce a text that addresses fundamentals of electrostatic discharge from the
manufacturing environment to today’s products. As the manufacturing world evolves, semi-
conductor networks scale, and systems are changing, the needs and requirements for reliabi-
lity and ESD protection are changing. A text is required that connects basic ESD phenomena
to today’s real world environment.
District energy (DE) systems use central heating and/or cooling facilities to provide
heating and/or cooling services for communities. The advantages of district energy
over conventional heating and cooling include improved efficiency, reliability and
safety, reduced environmental impact, and for many situations better economics.
DE systems can be particularly beneficial when integrated with cogeneration plants
for electricity and heat, i.e., with combined heat and power (CHP) plants. One of
the main impediments to increased use of cogeneration-based district energy is a
lack of understanding of the behavior of integrated forms of such systems. This
book is aimed at providing information on district energy and cogeneration tech-
nologies, as well as systems that combine them.
Mathematical modeling has become an important part of the research and devclopment work in engineering and scicnce. Retaining a competitive edge requiresa fast path between ideas and prototypes, and in this regard mathematical modeling and simulation provide a valuable shortcut for understanding both qualitative and quantitative aspects of scientific and engineering design. To assist you in gaining this edge, COMSOL Multiphysics offers state-of-the art performance, being built from the ground up with a Java3D interface and C/C++ solvers.The Acoustics Module is an optional package that extends the COMSOL Multiphysicsmodcling cnvironment with customized user interfaces and functionality optimizcd for the analysis of acoustics. Like all modules in the COMSOL family, it provides a brary of prewritten ready-to-run models that make it quicker and casier to analyze disciplinc-specific problcms.
AR0231AT7C00XUEA0-DRBR（RGB濾光）安森美半導體推出采用突破性減少LED閃爍 (LFM)技術的新的230萬像素CMOS圖像傳感器樣品AR0231AT，為汽車先進駕駛輔助系統(tǒng)(ADAS)應用確立了一個新基準。新器件能捕獲1080p高動態(tài)范圍(HDR)視頻，還具備支持汽車安全完整性等級B(ASIL B)的特性。LFM技術(專利申請中)消除交通信號燈和汽車LED照明的高頻LED閃爍，令交通信號閱讀算法能于所有光照條件下工作。AR0231AT具有1/2.7英寸(6.82 mm)光學格式和1928(水平) x 1208(垂直)有源像素陣列。它采用最新的3.0微米背照式(BSI)像素及安森美半導體的DR-Pix?技術，提供雙轉(zhuǎn)換增益以在所有光照條件下提升性能。它以線性、HDR或LFM模式捕獲圖像，并提供模式間的幀到幀情境切換。 AR0231AT提供達4重曝光的HDR，以出色的噪聲性能捕獲超過120dB的動態(tài)范圍。AR0231AT能同步支持多個攝相機，以易于在汽車應用中實現(xiàn)多個傳感器節(jié)點，和通過一個簡單的雙線串行接口實現(xiàn)用戶可編程性。它還有多個數(shù)據(jù)接口，包括MIPI(移動產(chǎn)業(yè)處理器接口)、并行和HiSPi(高速串行像素接口)。其它關鍵特性還包括可選自動化或用戶控制的黑電平控制，支持擴頻時鐘輸入和提供多色濾波陣列選擇。封裝和現(xiàn)狀：AR0231AT采用11 mm x 10 mm iBGA-121封裝，現(xiàn)提供工程樣品。工作溫度范圍為-40℃至105℃(環(huán)境溫度)，將完全通過AEC-Q100認證。
