نتایج جستجو برای: double comb

تعداد نتایج: 248633  

Journal: :Zootaxa 2014
Sergey Yu Storozhenko Pattarawich Dawwrueng

Mimadiestra gen. nov. (type species: M. biloba sp. nov.) is described from Thailand. Megadiestramima Storozhenko et Gorochov, 1992 and Leodiestramima Storozhenko, 2009, stat. nov. are considered as separate genera, therefore, three new combinations are proposed: Leodiestramima exculta (Gorochov, 1998), comb. nov., L. lecta (Gorochov, 1998), comb. nov., L. orlovi (Gorochov, 1994), comb. nov. A k...

Journal: :Zootaxa 2013
Kazunori Yamazaki Midori Yamazaki Rei Ueshima

Diplommatinidae is a family of terrestrial caenogastropod snails that shows extensive species diversity and endemic radiation within the Palau (Belau) Islands. In this paper, we revised the taxonomy of Palauan endemic diplommatinids based on the comparative morphology of shell, operculum, radula, and genitalia. Although the generic classification of Palauan diplommatinids has been confusing, th...

2002
Jun Ye

A remarkable synergy has been formed between precision optical frequency metrology and ultrafast laser science. This has resulted in control of the frequency spectrum produced by mode-locked lasers, which consists of a regular “comb” of sharp lines. Such a controlled mode-locked laser is a “femtosecond optical frequency comb generator.” For a sufficiently broad comb, it is straightforward to de...

Journal: :Zootaxa 2015
Petr Kment David A Rider

The Afrotropical genus-group taxa Dymantis Stål, 1861 and Eomyrochea Linnavuori, 1982 (Hemiptera: Heteroptera: Pentatomidae: Pentatominae: Myrocheini) are confirmed as objective synonyms, both sharing the same type species: Dymantis subvittata Stål, 1861. As a result, Dymantis (= Eomyrochea, syn. confirm.) is downgraded to a subgenus of Myrochea Amyot and Serville, 1843 and a new genus, Neodyma...

2013
Jae Hyun Ahn Richard Dudas

The comb filter is one of the basic building blocks in the world of digital filtering and signal processing, and an important component in a wide variety of musical and non-musical applications ranging from anti-aliasing of images and video to the design of numerous traditional audio effects. This paper describes a technique of using nested comb filter structures in order to design computationa...

Journal: :Optics letters 2000
D J Jones S A Diddams M S Taubman S T Cundiff L S Ma J L Hall

A technique is presented for generating optical frequency combs centered at arbitrary wavelengths by use of cross-phase modulation (XPM) between a femtosecond pulse train and a cw laser beam by copropagating these signals through an optical fiber. We report results from use of this method to place a 90-MHz frequency comb on an iodine-stabilized Nd:YAG laser at 1064 nm and on a frequency-doubled...

2015
Tjeerd Jan Pinkert

We report on frequency comb generation at 1.5 μm by injection of a CW laser in a hybridly1 mode-locked InAs/InP two-section quantum-dot laser (HMLQDL). The generated comb has > 60 modes spaced by ∼ 4.5 GHz and a -20 dBc width of> 100 GHz (23modes) at> 30 dB signal to background ratio. Comb generation was observed with the CW laser (red) detuned more than 20 nm outside the HMLQDL spectrum, spann...

Journal: :Pattern Recognition 2000
Stan Z. Li

In this paper, an iterative optimization algorithm, called the Comb algorithm, is presented for approximating the global solution to MAP image restoration and segementation. The Comb derives new initial conngurations based on the best local minimum found so far and leads a local search towards the global minimum. Experimental comparisons show that the Comb produces solutions of quality comparab...

2017
Stuart H. McKamey

Based on examination of holotypes or interpretation of original descriptions, four taxonomic changes are proposed for South American species erroneously placed in the tribe Smiliini: Flynnia, gen. n. (Thuridini) and F. fascipennis (Funkhouser), comb. n. from Bolivia; Antianthe atromarginata (Goding), comb. n. from Ecuador; Amastris pilosa (Funkhouser), comb. n. from Peru; and Thelia planeflava ...

Journal: :IEICE Transactions 2007
Minoru Sasaki Masahiro Ishimori JongHyeong Song Kazuhiro Hane

An electrostatically driven micromirror is described. The vertical comb of a three-dimensional microstructure is realized by bending the device wafer having microstructures. By resetting the bending angle, the tuning of the vertical gap between moving and stationary combs is possible. The characteristics of the vertical comb drive actuator can be tuned, confirming the performance. key words: mi...

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