Si Raja Gusar dari Ambarita

Atas penerbitan buku Si Raja Gusar dari Ambarita ini saya menyampaikan penghargaan dan ucapan terima kasih kepada para penyusunnya. Kepada Sdr. Slamet Riyadi Ali, Pemimpin Bagian Proyek Pembinaan Buku Sastra Indonesia dan Daerah-Jakarta beserta staf, saya ucapkan terima kasih atas usaha dan jerih payah mereka dalam penyiapan penerbitan buku ini. Ucapan terima kasih saya sampaikan pula kepada Sdr. Indra selaku ilustrator dalam buku ini. Mudah-mudahan buku Si Raja Gusar dari Ambarita ini dibaca oleh segenap anak Indonesia, bahkan oleh guru, orang tua, dan siapa saja yang mempunyai perhatian terhadap cerita rakyat Indonesia demi memperluas wawasan tentang kehidupan masa lalu yang banyak memiliki nilai yang tetap relevan dengan kehidupan masa kini

The Impact of Advanced Biofuels on Aviation Emissions and Operations in the U.S.

We analyze the economic and emissions impacts on U.S. commercial aviation of the Federal Aviation Administration’s renewable jet fuel goal when met using advanced fermentation (AF) fuel from perennial grasses. These fuels have recently been certified for use in aircraft and could potentially provide greater environmental benefits than aviation biofuels approved previously. Due to uncertainties in the commercialization of AF technologies, we consider a range of assumptions concerning capital costs, energy conversion efficiencies and product slates. In 2030, estimates of the implicit subsidy required to induce consumption of AF jet fuel range from $0.45 to$20.85 per gallon. These correspond to a reference jet fuel price of $3.23 per gallon and AF jet fuel costs ranging from 4.01 to$24.41 per gallon. In all cases, as renewable jet fuel represents around 1.4% of total fuel consumed by commercial aviation, the goal has a small impact on aviation operations and emissions relative to a case without the renewable jet fuel target, and emissions continue to grow relative to those in 2005. Costs per metric ton of carbon dioxide equivalent abated by using biofuels range from $42 to$652.This work is funded by the U.S. Federal Aviation Administration (FAA) and Defense Logistics Agency Energy (DLA Energy) through Project 47 of the Partnership for Air Transportation Noise and Emissions Reduction (PARTNER). The Joint Program on the Science and Policy of Global Change is funded by the U.S. Department of Energy and a consortium of government and industrial sponsors (for the complete list see http://globalchange.mit.edu/sponsors/all)

Real-time gaze estimation using a Kinect and a HD webcam

In human-computer interaction, gaze orientation is an important and promising source of information to demonstrate the attention and focus of users. Gaze detection can also be an extremely useful metric for analysing human mood and affect. Furthermore, gaze can be used as an input method for human-computer interaction. However, currently real-time and accurate gaze estimation is still an open problem. In this paper, we propose a simple and novel estimation model of the real-time gaze direction of a user on a computer screen. This method utilises cheap capturing devices, a HD webcam and a Microsoft Kinect. We consider that the gaze motion from a user facing forwards is composed of the local gaze motion shifted by eye motion and the global gaze motion driven by face motion. We validate our proposed model of gaze estimation and provide experimental evaluation of the reliability and the precision of the method