16,404 research outputs found
Fig. 1. Total S in Effect of selenium-sulfur interaction on the anabolism of sulforaphane in broccoli
No full textFig. 1. Total S content of leaf (A) and florets (B), total Se content of leaves (C) and florets (D) under S (1, 4 mM), Se (0, 50, 100, 150 μM) treatment. Blue bars, 0 μM Se treatment; red bars, 50 μM Se treatment; green bars, 100 μM Se treatment; yellow bars, 150 μM Se treatment. Bars represent arithmetic means; error bars represent SD from three independent experiments. Values with different letters are significantly different at p <0.01. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)Published as part of Mao, Shuxiang, Wang, Junwei, Wu, Qi, Liang, Mantian, Yuan, Yiming, Wu, Tao, Liu, Mingyue, Wu, Qiuyun & Huang, Ke, 2020, Effect of selenium-sulfur interaction on the anabolism of sulforaphane in broccoli, pp. 1-9 in Phytochemistry (112499) 179 on page 2, DOI: 10.1016/j.phytochem.2020.112499, http://zenodo.org/record/829339
Supplemental Material, sj-pdf-1-arx-10.1177_17298806221089777 - Online paths planning method for unmanned surface vehicles based on rapidly exploring random tree and a cooperative potential field
No full textSupplemental Material, sj-pdf-1-arx-10.1177_17298806221089777 for Online paths planning method for unmanned surface vehicles based on rapidly exploring random tree and a cooperative potential field by Naifeng Wen, Lingling Zhao, Ru-Bo Zhang, Shuai Wang, Guanqun Liu, Junwei Wu and Liyuan Wang in International Journal of Advanced Robotic Systems</p
Control and Filtering for Discrete Linear Repetitive Processes with H infty and ell 2--ell infty Performance
No full textRepetitive processes are characterized by a series of sweeps, termed passes, through a set of dynamics defined over a finite duration known as the pass length. On each pass an output, termed the pass profile, is produced which acts as a forcing function on, and hence contributes to, the dynamics of the next pass profile. This can lead to oscillations which increase in amplitude in the pass to pass direction and cannot be controlled by standard control laws. Here we give new results on the design of physically based control laws for the sub-class of so-called discrete linear repetitive processes which arise in applications areas such as iterative learning control. The main contribution is to show how control law design can be undertaken within the framework of a general robust filtering problem with guaranteed levels of performance. In particular, we develop algorithms for the design of an H? and dynamic output feedback controller and filter which guarantees that the resulting controlled (filtering error) process, respectively, is stable along the pass and has prescribed disturbance attenuation performance as measured by and – norms
sj-zip-1-pid-10.1177_09544070221111645 – Supplemental material for A universal dynamical model of dual-chamber air springs with experimental validation
No full textSupplemental material, sj-zip-1-pid-10.1177_09544070221111645 for A universal dynamical model of dual-chamber air springs with experimental validation by Mingyu Wu, Jie Hou, Hao Tong, Jing Wang, Hang Yin, Junwei Li, Haoxing Zhao, Yaochao Li, Shuai Shan and Yintao Wei in Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering</p
Acoustic radiation due to scattering of T-S wave by the mean-flow distortion induced by steady local suction
No full textSubstantial sound waves can be generated by boundary-layer instability modes when the latter are scattered by a rapid mean-flow distortion. This is a rather generic mechanism and operates when an oncoming T-S wave is scattered by a steady local suction slot. This paper focuses on this problem by extending a recently developed Local Scattering Theory (Wu & Dong, J. Fluid Mech. submitted), where a so-called transmission coefficient, defined as the ratio of the T-S wave amplitude downstream of the scatter to that upstream, is introduced to characterize the effect of a local scatter on boundary-layer instability and transition. As in the earlier work, the mathematical formulation is based on triple-deck formulism, but in order to accommodate the acoustic far field, which was not considered in the paper mentioned, the unsteady terms in the upper deck, which play a leading-order role in radiation, are retained, and the influence of the radiated sound on the near-wall perturbation is included. The upper deck equation for the pressure is the Helmholtz equation rather than the Laplace equation. This leads to a modified pressure-displacement relation, which is coupled with the linearized boundary-layer equations in the lower deck. Discretization of the whole system formulates a generalized eigenvalue problem, which is solved numerically. It is found that suction suppresses oncoming T-S waves, and this effect increases with the suction velocity and the slot width. The directivity is ndependent of the flow parameters only when the Mach number is low. The intensity of the radiated sound in general increases with the frequency, the suction velocity and the width of the suction slot. Interestingly, for O(1) suction velocities, the radiated sound is very weak, indicating that the gain of stabilizing effect does not cause aeroacoustic penalty
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Tim Wu & “The Curse of Bigness”
No full textHost Nicholas Lemann sits down with Tim Wu, author of The Curse of Bigness, to discuss the politics of Louis Brandeis and Theodore Roosevelt as antitrust has reemerged this year as a major issue in the run-up to the 2020 U.S. Presidential Election.
Insights into the formation of pullulan nanofilm and its feasibility as probiotic-resided oral fast dissolving carrier
No full textOral fast dissolving films represent a novel dosage form for probiotics. To reduce the dependence of film preparation on synthetic materials, a polysaccharide-based oral fast dissolving nanofilm for probiotics was fabricated through pullulan (PUL) electrospinning. An electrospinnability map of PUL with varying physical properties was developed, identifying a molecular weight of 200 kDa and a concentration of 20 % as suitable conditions for achieving favorable fiber morphology. Scanning electron microscopy, Fourier-transform infrared spectroscopy, and fluorescence assays confirmed that probiotics could be effectively encapsulated in the nano- film, with 92.6 % of viable cells retained after electrospinning. Results of thermogravimetric analysis and thermal test indicated that the heat resistance of the encapsulated bacteria was significantly improved (P < 0.05). After 28 days of storage, the loss of viable bacteria was higher at 25 degrees C (2.9 log) than at 4 degrees C (0.5 log). This observation is consistent with the results of accelerated storage test, which showed that probiotic nanofilms stored at 4 degrees C had a longer shelf life with an inactivation rate constant of 1.74 x 10(-5). Furthermore, the dissolution study revealed that the nanofilms could disintegrate in simulated saliva within 15 s, highlighting their potential as oral fast dissolving formulation
Dynamics of space charge and electroluminescence modelling in polyethylene
No full textSpace charge has been recognized as an important factor contributing to the electrical failure of the cable insulation. Extensive efforts have been made to investigate space charge dynamics within polymeric insulations under electric stresses. Basic information about space charge has been recognized resorting to modern charge mapping techniques but the underlying mechanisms for charge transport, charge trapping characteristics are not yet well understood. Hence theoretical modelling and numerical simulation are employed to simulate the space charge and provide an insight into the charge distribution in dielectrics. This thesis comprises the quantitative analysis of space charge through numerical modelling and experimental investigations of charge trapping in polymeric insulation materials.A bipolar charge transport model which involves bipolar charge injection from the electrodes, charge transport with trapping and recombination in the bulk has been developed to simulate the dynamics of space charge in polyethylene. The build-up of space charge in polyethylene under dc electric fields has been modelled. The influence of parameters related to the properties of polyethylene on the formation of space charge has been recognized. Furthermore, this model is introduced to simulate the dynamics of corona charge decay in polyethylene. The formation of charge packets in polyethylene is also investigated using a numerical modelling approach.A fast pulsed electro-acoustic system along with a data processing program has been developed to investigate the behaviour of space charge in polyethylene under ac voltages. The understanding of space charge under ac stresses has also been simulated using the further developed bipolar charge transport model. Experiments and simulation have also been expanded into understanding electroluminescence, which is an indication of pre-aging of polymers under ac stress
Measurement of dwell times of spin polarized rubidium atoms on octadecyltrichlorosilane- and paraffin-coated surfaces
No full textWe report the measurement of dwell times of spin polarized Rb atoms on octadecyltrichlorosilane OTS- and paraffin-coated surfaces. We find that at a cell temperature of 72 °C the dwell times for OTS- and paraffin-coated surfaces are 0.9+-0.1 microsecond and 1.8 +-0.2 microsecond , respectively. Since the relaxation probability on paraffin is almost one order of magnitude smaller than that on OTS, the longer dwell time for paraffin indicates that the average strength of the interactions experienced by Rb atoms while they are inside paraffin is much weaker than while they are inside OTS.Peer reviewe
[[alternative]]A Study on History of Shin-Wu Elementary School at Tao-Yuan（1905-2003）
No full text[[abstract]]To explore the school cultural development in Shin-Wu Elementary school in the last hundred years and the significance of school history research in educational history, this study examines documents and files in the school history room of Shin-Wu Elementary school and has oral history interviews as well. The main findings of this study are as follows.
1. In late Meiji, most of the teachers were Japanese or Taiwanese from the nearby common schools, however, the turnover was high. At that time, only affluent students attended schools while later, more students were from poor families. Yet, the drop-out rate was relatively high.
2. As for the age, most students went to school in their teens, for they had to share responsibilities in home chores.
3. In Taisyo period, there were more and more teachers who had been Shin-Wu graduates and students were from different sources.
4. Owing to the air raid during the war, schools got closed very often and the content of education was mainly about laboring.
5. Post-war education, compared with that before, varied little in educational contents and forms because of the position-retaining teachers and staff.
6. For the last hundred years, nearly one-third of Shin-Wu teachers were their graduates and principals and teachers of branch schools came form Shin-Wu Elementary School, too. Therefore, Shin-Wu Elementary School had played an influential role in the elementary education and the local people cultivation in Shin-Wu area.
7. Shin-Wu Elementary School had always followed the national educational policy, seldom did they have local standpoints, which meant, they had to strengthen their autonomy and capacity when faced with new challenges especially after the lifting of Martial Law.
8. Through elaborative school cultural analysis, relationship among education, politics, economy and society, in particular, individual area development will be more carefully investigated.
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