60 research outputs found

    A Case Study of Marketing Strategy and Logistics System of Changhong, a Chinese Home Appliances Enterprise

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    The growing process of Changhong, a representative Chinese home appliance enterprise, is described in this paper. Changhong succeeded in transforming from a former state-run military-radar factory into China’s leading consumer-electronics manufacturer. However it has been experiencing hardship since 1998 and reported significant losses in 2004.The success and failure of Changhong marketing strategy are expounded.This paper reports Changhong’s recent efforts in strategy shift. It shows Changhong is attempting to integrate upstream and downstream resources, and trying to use logistics and supply chain management as competitive business weapons, faced with new challenges in the high-end products market

    Plan de negocios de servicios de eficiencia energética y comercialización de iluminación LED

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    LED Confort es una empresa de iluminación LED situado en Galicia que ofrece a empresas y a particulares servicios de eficiencia energética en sus sistemas de iluminación. La misión de LED Confort es realizar estudios energéticos y proporcionar servicios de sustitución de todo el sistema de iluminado hacia una alternativa más duradera y ecológica. La tecnología LED en un futuro sustituirá a la iluminación tradicional y se convertirá en la nueva tendencia en la industria de la iluminación. LED Confort posee proveedores de tecnología LED en China y se aprovechará de los rendimientos de escala que la producción en masa genera, para poder suministrar sistemas de iluminación a precios muy competitivos. Así Los clientes se beneficiarán de un gran ahorro a corto plazo y podrán disfrutar de lámparas LED con grandes ventajas en comparación con las tradicionales. El objetivo principal del trabajo es realizar un plan de negocios de LED Confort S.L que guarde relación con la ecología y la eficiencia energética además de tener un carácter tecnológico. Para ello se han utilizado los conocimientos aprendidos a lo largo del Grado en Ingenierías de Tecnologías Industriales especializado en el área de Organizaciones Industriales. Se plantea el estudio de la aplicación de la tecnología LED para el desarrollo de una idea de negocio y el análisis de su potencial viabilidad en el mercado, tanto su viabilidad comercial, económica, como financiera. Este proyecto está dividido en cuatro partes. En la parte inicial se explican los motivos por las que se hace este plan de negocio y las metodologías seguidas para lograr con los objetivos establecidos. Así mismo, se describe los aspectos diferenciales, la misión y las actividades que se desarrollan. Posteriormente para verificar la viabilidad del negocio se realiza un estudio del mercado general de los LEDs. En el análisis del entorno se tiene en cuenta factores como socio-económicos, tecnológicos y medio ambientales del macro entorno, mientras que del micro entorno, se estudian las barreras de entrada y las cinco fuerzas de Porter. La segunda parte se detalla un estudio operativo de la empresa en el cual se integran datos como su localización y su proceso de importación, donde se explica además las metodologías seguidas para la selección y evaluación de proveedores. Luego en logística, se explica los procesos de gestión de stocks, recepción y control de productos. En esta parte también se estudiará las formalidades administrativas de la empresa y se especificará los perfiles del equipo personal requerida para la empresa . En la tercera parte del proyecto se determinan las estrategias de marketing según los tipos clientes potenciales que en este caso serán las empresas y viviendas familiares gallegas, también se analizará las posibles competencias. Por último, para determinar la viabilidad financiera del negocio se hará previsiones de inversiones y estudios de rentabilidad. Y después de analizar todos los parámetros que entran en juego en este negocio, se puede llegar a la conclusión de que es factible no solo económicamente, sino que la implementación de sistemas energéticos más eficientes es totalmente necesaria en un contexto de crisis energético.Ingeniería en Tecnologías Industriale

    Holocene variability of East Asian summer monsoon as viewed from the speleothem δ18O records in central China

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    Monsoon precipitation in East China shows distinct spatial distribution and its variability is closely linked with the changes of the East Asian summer monsoon (EASM). Located in the transition zone between the southern subtropical humid climate and the northern warm temperate semi-humid climate, central China is a core region for recognizing and understanding the spatio-temporal variability of the EASM. Using U-series dating and stable isotope analysis on five stalagmites (MG-1, MG-2, MG-7, MG-40 and MG-64) from Magou Cave, Henan Province, Central China, we construct a high-resolution and precisely dated composite stalagmite O time series covering most of the Holocene. This composite record reveals variations in precipitation O between 11.7 and 1.1 ka BP with average resolution of ∼4 yrs. The Magou composite record demonstrates that EASM intensity dominates long-term changes in precipitation O, which generally follows the northern hemisphere summer insolation (NHSI) trend. Both, Ensemble Empirical Mode Decomposition (EEMD) and wavelet filtering analyses real that the amplitudes of long-term (100-500 and 500-3000 yrs) components were slightly reduced between 8.5 and 4.9 ka BP, implying a weakened influence of climatic forcings on centennial and even millennial timescales during this warm period. Variance on 1-30-yr timescales is relatively low and ascribed to sampling resolution. Fourteen weak EASM intervals, including the 8.2 ka event, were identified within the period corresponding broadly with the Holocene Megathermal. Since no cold excursions other than the 8.2 ka event are found in the Greenland ice core records, we tentatively propose that oscillations in tropical sea surface temperature (SST) likely play an important role in steering other weak monsoon events. Aligning the Magou composite record and other moisture records with archaeological records from the study region, it seems that climate change influenced both the spatial distribution and agricultural practices of ancient cultures. However, overall moderate climatic changes in this region, most likely characterized by shifts between subtropical humid climate and warm temperate semi-humid climate, supported a generally consecutive development of ancient cultures without major hiatuses

    Next-Generation Sequencing of Cerebrospinal Fluid for the Diagnosis of Neurocysticercosis

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    Background: Neurocysticercosis (NCC) is the most common helminthic infection of the central nervous system (CNS). The diagnosis of NCC is sometimes challenging due to its heterogenous clinical manifestations and the variable sensitivity and specificity of neuroimaging and serological tests.Methods: Next-generation sequencing (NGS) of cerebrospinal fluid (CSF) was used to detect pathogens in patients with clinically suspected CNS infections. A series of patients diagnosed with NCC is reviewed here.Results: Using NGS of CSF, four patients were diagnosed with NCC. The reads corresponding to Taenia solium ranged from 478 to 117,362, with genomic coverage of 0.0564–11.15%. Reads corresponding to T. solium were not found in non-template controls and far exceeded those of the background microorganisms in patients with NCC, facilitating the interpretation of the NGS results.Conclusions: This case series demonstrates that NGS of CSF is promising in the diagnosis of NCC in difficult to diagnose cases. Larger studies are needed in the future

    Road Traffic Density Estimation in Vehicular Network

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    In recent decades, vehicular networks or intelligent transportation systems are being increasingly investigated and used to provide solutions to next generation traffic systems. Road traffic density estimation provides important information for road planning, intelligent road routing, road traffic control, vehicular network traffic scheduling, routing and dissemination. The ever increasing number of vehicles equipped with wireless communication capabilities provide new means to estimate the road traffic density more accurately and in real time than traditionally used techniques. In this thesis, we consider two research problems on road traffic density estimation. First research problem is the estimation algorithm design of road traffic density where each vehicle estimates its local road traffic density using some simple measurements only, i.e. the number of neighboring vehicles. A maximum likelihood estimator of the traffic density is obtained based on a rigorous analysis of the joint distribution of the number of vehicles in each hop. Analysis is also conducted on the accuracy of the estimation and the amount of neighborhood information required for an accurate road traffic density estimation. Simulations are performed which validate the accuracy and the robustness of the proposed density estimation algorithm. Secondly, we consider the problem of road traffic density estimation based on the use of a stochastic geometry concept—contact distribution function, which obtains density estimates by a probe vehicle traveling within objective area, measuring the inter-contact vehicle numbers and lengths. A maximum likelihood estimator of the traffic density is applied. Analysis is also performed on the accuracy of the estimation and the small sample sizes’ bias has been corrected. Simulations are performed which validate the accuracy and robustness of the proposed density estimation algorithm

    Population Genetic Analysis of Rainbow Clam Moerella iridescens by Using rDNA

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    To assess the genetic background of the germplasm resource of rainbow clam Moerella iridescens along China coasts, population genetic structure and genetic diversity of rainbow clam from five geographical populations in the Yellow Sea and the East China Sea (Lianyungang, Chongming, Cixi, Zhoushan, and Ningde) were analyzed based on rDNA (ITS1-5.8S-ITS2) sequences. Forty-Seven rDNA haplotypes were identified among 109 rainbow clam individuals of the five populations. Gen4 and Gen21 were the dominant haplotypes, accounting for 49.5% of rDNA whole gene sequences, and shared by the five populations. Six to eight exclusive haplotypes were found in each population. The average haplotype diversity index (HD) of the five populations was 0.8733. The genetic distance among populations ranged from 0.002 to 0.004, and haplotypes from the same population were not clustered in a single clade. Molecular variance analysis (AMOVA) demonstrated that the main genetic differentiation mainly occurred within population, and the genetic differentiation coefficient (FST) among five populations was between -0.02836 and 0.01896, which meant that no genetic differentiation among populations occurred. Overall, the five geographical populations showed a high genetic diversity, but no evident genetic structure or genetic differentiation
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