نتایج جستجو برای: stw 5

تعداد نتایج: 1215983  

2009
Ruggero D'Anastasio Bernhard Zipfel Jacopo Moggi-Cecchi Roscoe Stanyon Luigi Capasso

We report on the paleopathological analysis of the partial skeleton of the late Pliocene hominin species Australopithecus africanus Stw 431 from Sterkfontein, South Africa. A previous study noted the presence of lesions on vertebral bodies diagnosed as spondylosis deformans due to trauma. Instead, we suggest that these lesions are pathological changes due to the initial phases of an infectious ...

Journal: :Analytical and bioanalytical chemistry 2008
Kerstin Länge Bastian E Rapp Michael Rapp

This review presents an overview of 20 years of worldwide development in the field of biosensors based on special types of surface acoustic wave (SAW) devices that permit the highly sensitive detection of biorelevant molecules in liquid media (such as water or aqueous buffer solutions). 1987 saw the first approaches, which used either horizontally polarized shear waves (HPSW) in a delay line co...

2008
Brian P. Rigney Lucy Y. Pao Dale A. Lawrence

Single-track hard disk drive (HDD) seek performance is measured by settle time, ts, defined as the time from the arrival of a seek command until the measured position reaches and stays within an acceptable distance from the target track. Models of HDD dynamics are typically nonminimum phase (NMP), which complicates control design focused on settle time performance improvements. Our previous wor...

Journal: :Chemistry of Materials 2022

The chiral zeolite STW has been synthesized using a large dication containing three aromatic rings (two imidazolium moieties plus benzene one). integrity of the occluded organics is proven by 1H and 13C liquid NMR dissolved in HF/D2O. Molecular simulations strongly suggest that each ring located different cavity so crosses two medium pore 10-membered-ring (MR) windows. This confirmed Rietveld r...

Journal: :Energies 2021

This paper presents a Hybrid Excited Double-Sided Linear Flux Switching Machine (HEDSLFSM) with crooked tooth modular stator. Generally, the conventional stators are made of full-length iron core, increasing manufacturing costs and losses. Higher losses result in lower efficiency overall performance. A U-shaped stator is used to consumption increase machine’s efficiency. Ferrite magnets replace...

Journal: :Energies 2022

This paper presents a novel linear hybrid excited flux switching permanent magnet machine (LHEFSPMM) with crooked tooth modular stator. Conventional stators are made up of pure iron core, which results in high manufacturing costs and increased core losses. Using stator lowers the volume by to 18% compared conventional stator, minimizes losses reduces machine’s overall cost. A angle is introduce...

Journal: :Heliyon 2023

Twenty vegetable amaranth (VA) genotypes were evaluated to assess the variability, associations, path coefficient, and principal component analysis (PCA) of morpho-chemical traits. The exhibited adequate antioxidant colorants, phytochemicals, antiradical capacity with significant variations across genotypes. Genetic parameters revealed selection criteria for majority traits improving foliage yi...

2005
Jan G. Svec Frantisek Sram Marek Fric Q. Qiu Harm K. Schutte

Kymographic imaging refers to a special way of displaying vibrations by putting together a great number of successive images of a vibrating object viewed through a thin slit. In medicine, the method has been found particularly well suited for imaging vibrations of the vocal folds, which are the ultimate source of human voice. Here we address the question on which vibratory characteristics of th...

2003
Willem Albers

Standard control charts are often seriously in error when the distributional form of the observations differs from normality. Recently, control charts have been developed for larger parametric families. A third possibility is to apply a suitable (modified version of a) nonparametric control chart. This paper deals with the question when to switch from the control chart based on normality to a p...

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