منابع مشابه
A simple method to calibrate hemispherical photographs
Objectives Hemispherical photography is used to characterize the structure of canopies and measure the gap fraction directional variation to retrieve variables such as the leaf area index (LAI), the fAPAR {Jonckheere, 2004 #3541};{Weiss, 2004 #2872}. Optical systems are not perfect and at least two main characteristics are required: • The coordinates of the optical centre • The projection funct...
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چکیده-پخش بار بهینه به عنوان یکی از ابزار زیر بنایی برای تحلیل سیستم های قدرت پیچیده ،برای مدت طولانی مورد بررسی قرار گرفته است.پخش بار بهینه توابع هدف یک سیستم قدرت از جمله تابع هزینه سوخت ،آلودگی ،تلفات را بهینه می کند،و هم زمان قیود سیستم قدرت را نیز برآورده می کند.در کلی ترین حالتopf یک مساله بهینه سازی غیر خطی ،غیر محدب،مقیاس بزرگ،و ایستا می باشد که می تواند شامل متغیرهای کنترلی پیوسته و گ...
Influenza: A Unique Disease
Dear Editor-in-Chief, Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus (1). Symptoms can be mild to severe (2). The most common symptoms include: high fever, runny nose, sore throat, muscle pains, headache, coughing, sneezing, and feeling tired (1). Three of the four types of influenza viruses affect people, Type A, Type B, and Type C (3, 4). Type D ha...
متن کاملAutomated Detection of Cattle Mounting with Motion History Image Method
Automatic detection of cow’s estrus is important in cattle management. This paper proposes a method of estrus detection by checking cattle mounting activity automatically. We use a video sensor and apply computer vision techniques to detect the mounting activity. Especially, we derive motion vectors in order to distinguish the mounting activity from other activities, based on computer vision te...
متن کاملImproved Antenna Mounting Method for UWB BAN Channel Measurements
In this paper, a mounting method is proposed for antennas used in ultra wideband (UWB) body area network (BAN) channel sounding, which reduces the antenna’s electromagnetic coupling to the human body. Coupling with the body is shown to distort the free space characteristics of the antenna. An antenna mount modification is proposed to reduce this distortion, and decrease the variation in antenna...
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ژورنال
عنوان ژورنال: International Journal of Orthodontia
سال: 1916
ISSN: 1072-3471
DOI: 10.1016/s1072-3471(16)90161-5