Regardless of the branch of science or engineering, theoreticians have always
been enamored with the notion of expressing their results in the form of
closed-form expressions. Quite often, the elegance of the closed-form solution
is overshadowed by the complexity of its form and the difficulty in evaluating
it numerically. In such instances, one becomes motivated to search instead for
a solution that is simple in form and simple to evaluate.
Regardless of the branch of science or engineering, theoreticians have always been
enamored with the notion of expressing their results in the form of closed-form
expressions. Quite often the elegance of the closed-form solution is overshadowed
by the complexity of its form and the difficulty in evaluating it numerically. In
such instances, one becomes motivated to search instead for a solution that is
simple in form and likewise simple to evaluate.
In this book, we present the basic pinciples that underlie the analysis and design of digital communication system.The subject of digital communications involves the transmission of information in digital form from a source that generates the information to one or more destinations.
This book deals with a very important problem in power system planning
for countries in which hydrogeneration accounts for the greatest part of the
system power production. During the past thirty years many techniques
have been developed to cope with the long-term operation of hydro reser-
voirs. These techniques have been discussed in a number of publications,
but they have not until now been documented in book form.
The author’s group has developed various chipless RFID tags and reader architectures
at 2.45, 4–8, 24, and 60 GHz. These results were published extensively in the form of
books, book chapters, refereed conference and journal articles, and finally, as patent
applications. However, there is still room for improvement of chipless RFID sys-
tems. In this book, we proposed advanced techniques of chipless RFID systems that
supersede their predecessors in signal processing, tag design, and reader architecture.
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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(ADAS)應用確立了一個新基準。新器件能捕獲1080p高動態范圍(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的動態范圍。AR0231AT能同步支持多個攝相機,以易于在汽車應用中實現多個傳感器節點,和通過一個簡單的雙線串行接口實現用戶可編程性。它還有多個數據接口,包括MIPI(移動產業處理器接口)、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。封裝和現狀:AR0231AT采用11 mm x 10 mm iBGA-121封裝,現提供工程樣品。工作溫度范圍為-40℃至105℃(環境溫度),將完全通過AEC-Q100認證。
About:
hamsterdb is a database engine written in ANSI C. It supports a B+Tree index structure, uses memory mapped I/O (if available), supports cursors, and can create in-memory databases.
Release focus: Major feature enhancements
Changes:
This release comes with many changes and new features. It can manage multiple databases in one file. A new flag (HAM_LOCK_EXCLUSIVE) places an exclusive lock on the file. hamsterdb was ported to Windows CE, and the Solution file for Visual Studio 2005 now supports builds for x64. Several minor bugs were fixed, performance was improved, and small API changes occurred. Pre-built libraries for Windows (32-bit and 64-bit) are available for download.
Author:
cruppstahl