Here, we report a facile hydrothermal approach for synthesizing anatase TiO2 hierarchical mesoporous submicrotubes (ATHMSs) with the aid of long-chain polymer as soft template. The TiO2 nanocrystals, with sizes of 6-8 nm, are well interconnected with each other to build tubular architectures with diameters of 0.3-1.5 μm and lengths of 10-25 μm. Such highly porous structures give rise to very la...

Meat grading has always been a research subject because of its economical importance and the large variations among meat product qualities. In this study, a hyperspectral imaging system in the near-infrared (NIR) range (900-1700 nm) was developed for quality assessment of pork meat. Pork samples were classified in three quality grades, as reddish-pink, firm and non-exudative (RFN), pale, soft a...

Streptomyces tanashiensis IM8442T was found to produce lactoquinomycin B, a novel antibiotic, together with lactoquinomycin A. Lactoquinomycin B was purified, and the physico-chemical and biological characteristics were studied. Lactoquinomycin B, C24H27NO9, mp 149~152°C (dec), FD-MS m/z 473 (M+), is a basic substance, showing UV 2meOH (s) 239 (15,100), 287 (3,450) and 369 nm (5,300), and 1R vm...

In this study the potential of a pushbroom hyperspectral imaging system in the near-infrared (NIR) range (900-1700 nm) as a non-destructive technique was investigated for the detection of freshness in pork meat. Pork samples from the longissimus dorsi muscle of different quality grades were investigated. Each sample was imaged by the hyperspectral imaging system at 2 days post-mortem and then k...

Using a novel (to our knowledge) broadband Yb-doped Yb3+,Na+:CaF2 crystal cooled in a closed loop to 130 K we demonstrate a chirped pulse regenerative laser amplifier delivering the energy of up to 3 mJ at a repetition rate of 1 kHz and an average output power of 6 W at 20 kHz. The gain narrowing in the laser crystal is compensated by shaping the amplitude of the seed pulse spectrum. As the res...

We demonstrate broadband wavelength conversion of a 40 Gb/s return-to-zero signal by cross-phase modulation in a newly developed chalcogenide glass waveguide based photonic chip. These new serpentine As(2)S(3) waveguides offer a nonlinear coefficient approximately 1700 W(-1)km(-1) with 5x lower propagation loss over a length of 22.5 cm which ensures the full propagation length contributes towar...

Geometry and Diophantine equations have been ever-present in mathematics. Diophantus of Alexandria was born in the 3rd century (as far as we know), but a systematic mathematical study of word equations began only in the 20th century. So, the title of the present article does not seem to be justified at all. However, a linear Diophantine equation can be viewed as a special case of a system of wo...

A technical consideration of play, with special reference to its mental hygiene aspects. Obviously a labor of love, written in good style by a most enthusiastic person. The reviewer was disappointed to find in it little of clinical value from the point of view of psychiatry and mental hygiene. In it he did find the usual mixture of sentimentality and poorly digested psychoanalytic terminology. ...

For historians of science, natural philosophical interest in magnetism has not been strongly associated with the eighteenth century, so that the agenda for this book may not seem a promising one. The seventeenth century opened with the publication of the influential work by William Gilbert, and magnetism continued to be prominent in important works of natural philosophy and cosmology: Kepler an...

The objective of this study is to show the applicability of the genetic synthesis of the unsupervised artificial neural network ART2 (Adaptive Resonance Theory) in the classification of ASTER image for land use/land cover mapping. The area under study is located in northern Mato Grosso State, Brazil, and is characterized by a strong human occupation process, which caused intensive changes at th...