Implementación de un plan comercial para incrementar el volumen de ventas en la empresa Dicomter Contratistas Generales S. A. C.

El presente proyecto tiene como objetivo implementar un plan comercial para la empresa DICOMTER CONTRATISTAS GENERALES SAC; y por consecuencia, mejorar los resultados de las ventas y la rentabilidad en la empresa. Esta empresa se dedica a ofrecer distintos servicios generales como desarrollo de obras en desagüe, agua; instalaciones eléctricas, pintado, termofusión y electrofusión, consultoría y asesoría en proyectos civiles, etc. Frente a los puntos críticos, como los planes y objetivos no definidos, supervisión deficiente, ausencia de control y monitoreo al equipo de ventas, demora en las cotizaciones, realización de pocas llamadas a clientes y deficiencia en la definición de roles, se implementaron procesos en el servicio para una mejor gestión con el cliente recurrente y nuevos clientes, consistentes en la implementación de un proceso de ventas adecuado, definición de funciones, establecer objetivos claros y mejorar el brochure de presentación de la empresa. A través de estas estrategias, se obtuvieron resultados sustanciales en los niveles de ventas, incrementando en promedio un 31% de mes a mes en el último trimestre, y alcanzando los objetivos comerciales mensuales en un 103% promedio

Noche del terror viviente: o cómo el nuevo horror amenaza al antiguo

During the 1970s and 1980s, a new type of horror movies born in United States and marked a milestone in the genre by impressing a young generation of film lovers. Today, the big producers take advantage of the cult status of some of these films to remake them, adjusting to new parameters of current terror. However,the changes that the so-called remakes make to the original screenplays, reveal differences between these works in terms of cinematographic resources.Durante las décadas de los setentas y ochentas nació en Estados Unidos un nuevo tipo de cine de terror que marcó un hito en el género al impresionar a una joven generación de amantes del séptimo arte. Hoy en día, las grandes productoras aprovechan el estatus de culto de algunas de estas películas para rehacerlas, ajustándolas a los nuevos parámetros del terror actual. No obstante, los cambios que los llamados remakes ejercen sobre los argumentos originales revelan las diferencias entre los discursos cinematográficos de estas obras

Investigations on NbTi superconducting racetrack coils under pulsed-current excitations

One of the key issues in the technology of superconductors is the protection against quenches. When designing a superconductor as a magnet, a coil or even current leads, the design should be made such that the superconductor withstands all operational conditions as fast discharges, pulsed loads or even rapid transient background fields. Computational modeling of pulsed-current characterization in a self-field NbTi racetrack sample coil has been performed using the finite element modelling software Opera as a step towards understanding the thermal and electromagnetic processes during a quench. The pulse was modelled to be generated by discharging a capacitor into an RLC circuit, which includes the NbTi racetrack coil as the sample under test. The coil was driven to the resistive state and the quench occurred by applying the pulse with a peak value exceeding the critical current of the sample coil. This contribution presents the results obtained from investigating a pulsed NbTi coil in a model based on an electromagnetic analysis. In addition, a comparison to the theoretical expectations derived for the damped oscillations in the pulse-driving circuit is given. Finally, the results from a coupled analysis, where both thermal and electromagnetic properties are being considered, within a quench multi-physics study are presented

Prospects for photon science and beam dynamics studies of a THz undulator at FLUTE

n recent years the interest in high intensity, short-pulse coherent THz radiation for non-linear experimental research and applications grew with upcoming high intensity lasers. In contrast to lasers, accelerators provide free electrons for which emission properties can be tailored to the demand at typically much higher repetition rates than high-intensity lasers can provide. Efforts are ongoing to augment short-bunch accelerators such as the European XFEL with THz radiation sources such as undulators. At the far-infrared linac and test experiment (FLUTE) at KIT, we can facil- itate experiments to investigate coherent THz radiation from different sources and provide short electron bunches. As an additional THz source, a superconducting undulator can be inserted and investigated. In this contribution, we evaluate the opportunities of this THz undulator at FLUTE for linear accelerators and FELs in terms of photon science and beam dynamics

Controlled Interlayer Exciton Ionization in an Electrostatic Trap in Atomically Thin Heterostructures

Atomically thin semiconductor heterostructures provide a two-dimensional (2D) device platform for creating high densities of cold, controllable excitons. Interlayer excitons (IEs), bound electrons and holes localized to separate 2D quantum well layers, have permanent out-of-plane dipole moments and long lifetimes, allowing their spatial distribution to be tuned on demand. Here, we employ electrostatic gates to trap IEs and control their density. By electrically modulating the IE Stark shift, electron-hole pair concentrations above $2\times10^{12}$ cm$^{-2}$ can be achieved. At this high IE density, we observe an exponentially increasing linewidth broadening indicative of an IE ionization transition, independent of the trap depth. This runaway threshold remains constant at low temperatures, but increases above 20 K, consistent with the quantum dissociation of a degenerate IE gas. Our demonstration of the IE ionization in a tunable electrostatic trap represents an important step towards the realization of dipolar exciton condensates in solid-state optoelectronic devices.Comment: 14 pages, 4 main figures, 1 extended data figur

Excitons in a reconstructed moiré potential in twisted WSe₂/WSe₂ homobilayers

Moiré superlattices in twisted van der Waals materials have recently emerged as a promising platform for engineering electronic and optical properties. A major obstacle to fully understanding these systems and harnessing their potential is the limited ability to correlate direct imaging of the moiré structure with optical and electronic properties. Here we develop a secondary electron microscope technique to directly image stacking domains in fully functional van der Waals heterostructure devices. After demonstrating the imaging of AB/BA and ABA/ABC domains in multilayer graphene, we employ this technique to investigate reconstructed moiré patterns in twisted WSe₂/WSe₂ bilayers and directly correlate the increasing moiré periodicity with the emergence of two distinct exciton species in photoluminescence measurements. These states can be tuned individually through electrostatic gating and feature different valley coherence properties. We attribute our observations to the formation of an array of two intralayer exciton species that reside in alternating locations in the superlattice, and open up new avenues to realize tunable exciton arrays in twisted van der Waals heterostructures, with applications in quantum optoelectronics and explorations of novel many-body systems

Energy deposition simulations for a damage experiment with superconducting sample coils

An experiment to study damage caused by the impact of 440 GeV/c protons on sample superconducting racetrack coils made from NbTi and Nb3Sn strands was recently carried out at CERN\u27s HiRadMat facility. This paper reports on the detailed Monte Carlo simulations performed with FLUKA and Geant4 to evaluate the energy deposition of the 440 GeV/c proton beam on the sample coils positioned in the experimental setup. using the measured beam parameters during the experiment. The measured hotspot temperatures and temperature gradients reached in the sample coils are presented and compared with the simulations. In addition, comparisons between the simulation results from FLUKA and Geant4 are discussed in detail