Nonlinear superposition formula for N=1 supersymmetric KdV Equation

In this paper, we derive a B\"{a}cklund transformation for the supersymmetric Kortweg-de Vries equation. We also construct a nonlinear superposition formula, which allows us to rebuild systematically for the supersymmetric KdV equation the soliton solutions of Carstea, Ramani and Grammaticos.Comment: 6 pages, LaTeX, everthing is reformed into super field

Cable Effects on Measuring Small Planar UWB Monopole Antennas

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ARCHERY TRAINING IMPROVE POSTURAL CONTROL IN YOUNG CHILDREN

Exercise training might be beneficial for postural control (PC) during exercise and daily activities. The purpose of the study was to examine the effects of an eight-week archery training program on PC in young children during the standard, aiming, and archery shooting standing posture

Private-label use and store loyalty

The authors develop an econometric model of the relationship between a household’s private-label (PL) share and its behavioral store loyalty. The model includes major drivers of these two behaviors and controls for simultaneity and nonlinearity in the relationship between them. The model is estimated with a unique data set that combinescomplete purchase records of a panel of Dutch households with demographic and psychographic data. The authorsestimate the model for two retail chains in the Netherlands the leading service chain with a well-differentiatedhigh-share PL and the leading value chain with a lower-share PL. They find that PL share significantly affects all three measures of behavioral loyalty in the study: share of wallet, share of items purchased, andshare of shopping trips. In addition, behavioral loyalty has a significant effect on PL share. For the service chain, the authors find that both effects are in the form of an inverted U. For the value chain, the effects are positive and nonlinear, but they do not exhibit nonmonotonicity, because PL share has not yet reached high enough levels. The managerial implications of this research are important. Retailers can reap the benefits of a virtuous cycle; greater PL share increases share of wallet, and greater share of wallet increases PL share. However, this virtuous cycle operates only to a point because heavy PL buyers tend to be loyal to price savings and PLs in general, not to the PL of any particular chain.pre-prin

Study on High-Strength Ring Chain Dynamic Characteristics under Different Launch Parameters

The aim of this study is to investigate the mechanical characteristics of the high-strength ring chain under various launch parameters and the energy consumption caused by this. Particularly, the contact dynamics simulation was implemented in ABAQUS to study the launch characteristics impacted by different chain speeds different transportation loads, and the results were proved by experiments. The results show that stable stresses under different launch speeds are diverse, and the launch speed which makes the performance best is 5.6 m/min; stable stresses under different loads are diverse, and in the overload-launch process, the normal force of the chain increases multi-fold so that the chain will be great damaged; The energy consumption caused by the friction among high-strength ring chains under no-load operation occupies 23.8% of the resistance consumption. With the rise in loads, the total resistance consumption grow linearly. As a consequence, the research has great significance for the research of ring chain launch characteristics, the forecast of the chain's operating life and the efficiency improvement of electromotors.Исследованы механические характеристики высокопрочной кольцевой цепи транспортного оборудования при различных рабочих параметрах и связанное с этим энергопотребление. Динамическая контактная задача моделируется с помощью конечноэлементного пакета ABAQUS для различных транспортных нагрузок и скоростей движения цепи с последующей экспериментальной верификацией полученных результатов. Установлено, что оптимальное функционирование цепи соответствует скорости движения 5,65 м/мин, при которой деформация и напряжение являются стабильными. В режиме перегрузки нормальное напряжение возрастает многократно, что приводит к существенному повреждению цепи. Показано, что при холостом режиме работы цепи 23,8% потребляемой энергии расходуется на преодоление сил трения. При увеличении рабочей нагрузки наблюдается линейный рост потребляемой энергии. Полученные динамические механические характеристики цепи позволяют уточнить прогноз ее долговечности в условиях эксплуатации и усовершенствовать схему энергопитания электромоторов.Досліджено механічні характеристики високоміцного кільцевого ланцюга транспортного обладнання за різних робочих параметрів та зв язане з цим енергоспоживання. Динамічна контактна задача моделюється за допомогою скінченноелементного пакета ABAQUS для різних транспортних навантажень і швидкостей руху ланцюга з подальшою експериментальною верифікацією отриманих результатів. Установлено, що оптимальне функціонування ланцюга відповідає швидкості руху 5,65 м/хв., за якої деформація і напруга є стабільними. У режимі перевантаження нормальна напруга збільшується багаторазово, що призводить до суттєвого пошкодження ланцюга. Показано, що при холостому режимі роботи ланцюга 23,8% споживаної енергії витрачається на подолання сил тертя. Із підвищенням робочого навантаження відмічається лінійне зростання споживаної енергії. Отримані динамічні механічні характеристики ланцюга дозволяють уточнити прогноз його довговічності в умовах експлуатації та удосконалити схему енергоспоживання електромоторів

Expression of wheat gibberellins 2-oxidase gene induced dwarf or semi-dwarf phenotype in rice

Gibberellins (GAs) are a class of plant hormones that play important roles in diverse aspects during plant growth and development. A series of GA synthesis and metabolism genes have been reported or proved to have essential functions in different plant species, while a small number of GA 2-oxidase genes have been cloned or reported in wheat. Previous studies have provided some important findings on the process of GA biosynthesis and the enzymes involved in its related pathways. These may facilitate understanding of the complicated process underlying GA synthesis and metabolism in wheat. In this study, GA 2-oxidase genes TaGA2ox1-1, TaGA2ox1-2, TaGA2ox1-3, TaGA2ox1-4, TaGA2ox1-5, and TaGA2ox1-6 were identified and further overexpressed in rice plants to investigate their functions in GA biosynthesis and signaling pathway. Results showed overexpression of GA 2-oxidase genes in rice disrupted the GA metabolic pathways and induced catalytic responses and regulated other GA biosynthesis and signaling pathway genes, which further leading to GA signaling disorders and diversity in phenotypic changes in rice plants