The Design of Hotel Performance Management System in Padang

As a tourist place, Indonesia is supported by its beautiful natural scenaries and unique cultures. Actually most of Indonesia incomes came from tourism sectors. Padang as the administrative center of West Sumatra is one of tourism places in Indonesia. Unfortunately, all the facilities and touris actractions here need improvement, for example the hotels. Hotels in Padang need attention on the performance Hotels in Padang need attention on the performance This hotel depends on profit targets and classification of IHRA (Indonesian Hotel & Restaurant Association). For the increasement of this hotel, SWOT (Strength, Weakness, Opportunity, Threats) analysis and balanced scorecard method were applied. It began with the strategic information gathering based on interviewing the company, then continue processing it into a questionnaire which based on SWOT research. At this point, it is known that Premier Basko Hotel is in quadrant II (strength-threat) SWOT analysis diagram. So, this hotel needs to implement a diversification strategy. It also has 14 types of alternative strategies with strategic goals, 14 factors on Critical Success Factors (CSF), 38 indicators on Key Performance Indicators (KPI), and 38 pieces forms of performance management system. All of these are as the form of guidelines for the performance management system Premier Basko Hotel

Transceiver architectures and sub-mW fast frequency-hopping synthesizers for ultra-low power WSNs

Wireless sensor networks (WSN) have the potential to become the third wireless revolution after wireless voice networks in the 80s and wireless data networks in the late 90s. This revolution will finally connect together the physical world of the human and the virtual world of the electronic devices. Though in the recent years large progress in power consumption reduction has been made in the wireless arena in order to increase the battery life, this is still not enough to achieve a wide adoption of this technology. Indeed, while nowadays consumers are used to charge batteries in laptops, mobile phones and other high-tech products, this operation becomes infeasible when scaled up to large industrial, enterprise or home networks composed of thousands of wireless nodes. Wireless sensor networks come as a new way to connect electronic equipments reducing, in this way, the costs associated with the installation and maintenance of large wired networks. To accomplish this task, it is necessary to reduce the energy consumption of the wireless node to a point where energy harvesting becomes feasible and the node energy autonomy exceeds the life time of the wireless node itself. This thesis focuses on the radio design, which is the backbone of any wireless node. A common approach to radio design for WSNs is to start from a very simple radio (like an RFID) adding more functionalities up to the point in which the power budget is reached. In this way, the robustness of the wireless link is traded off for power reducing the range of applications that can draw benefit form a WSN. In this thesis, we propose a novel approach to the radio design for WSNs. We started from a proven architecture like Bluetooth, and progressively we removed all the functionalities that are not required for WSNs. The robustness of the wireless link is guaranteed by using a fast frequency hopping spread spectrum technique while the power budget is achieved by optimizing the radio architecture and the frequency hopping synthesizer Two different radio architectures and a novel fast frequency hopping synthesizer are proposed that cover the large space of applications for WSNs. The two architectures make use of the peculiarities of each scenario and, together with a novel fast frequency hopping synthesizer, proved that spread spectrum techniques can be used also in severely power constrained scenarios like WSNs. This solution opens a new window toward a radio design, which ultimately trades off flexibility, rather than robustness, for power consumption. In this way, we broadened the range of applications for WSNs to areas in which security and reliability of the communication link are mandatory

Vector finite element optimisation of compact spot-size converters in photonics integrated circuits

It is well known that one of the major problems of integrated optical systems is the efficient coupling of photonic devices such as semiconductor lasers, amplifiers, modulators, or switches to a single mode fiber (SMF) in such a way that little or no power loss occurs. A well confined beam is needed in order to optimize the performance of a wide range of these photonic devices, because up to 90% of the optical power can be lost due to a large mismatch between their small non-circular spot-size and a SMF with a larger and circular spot-size when they are butt-coupled. Over the last 10 years several attempts have been made to close the gap and reduce such a high loss when coupling a photonic integrated circuit (PIC) to SMF. Among these is the use of a microlens or lensed fiber to enhance the coupling efficiency. However, the disadvantage of this approach is that associated sub-micron alignment tolerances lead to very high packaging costs. For a small business network, such a large cost is preventing the rapid extension of fiber-to-the-home (FTTH). This makes the problem of optical coupling a big challenge to optoelectronics researchers worldwide as huge efforts were made to expand the narrow spot-size within a PIC, such that efficient coupling to a SMF with a large spot-size can be made. Monolithically integrated spot-size converters (SSCs) have been reported recently as being used to enhance optical coupling without deteriorating alignment tolerances and majority of the expanded SSCs do incorporate tapered structures, operating very close to the modal cut-off, to expand their spot-size. In this thesis, some compact SSC designs have been carried out using the twin rib (TR), multimode interference (MMI) and silicon-on-insulator (SOI) waveguides to improve the coupling efficiency. The TR and SOI do require a tapered section in their mode of operation to expand the spot-size whereas the MMI does not need a tapered section. Some numerical techniques have been employed in this thesis as tools in the design, analysis and optimization of the above guided-wave photonics devices. The robust, versatile and accurate full-vector finite element method (FVFEM) is the backbone of all the numerical techniques, as it has been used to obtain the modal solutions of the waveguide sections of the photonic devices throughout this thesis. The FVFEM has been used in conjunction with the Least squares boundary residual (LSBR) method in the novel compact design, analysis and optimisation of 3-Core multimode waveguide as a device for improving power coupling efficiency. The transmission and reflection coefficients of the guided-waves are obtained as well. In a similar manner, the FVFEM is also used in conjunction with the finite element-based full-vector beam propagation method (FVBPM) to study the propagation of the guided-waves along the longitudinal z-direction of tapered devices for the TR and SOI waveguides. In the analysis, the propagating power, the radiation loss and the spot-size are obtained for these PICs. Tapered spot-size converters, with various high- index SOI waveguides, which consists of secondary polymeric cover, are investigated in this work. Mode beating phenomenon was observed and explained. Also the An characterisation SOI was carried in this work because of the high-index contrast of the SOI materials which is a vital information for any design Engineer since the operations depend heavily on the materials as well as the geometry of the device. The robust PML boundary conditions have been used to stem down unwanted radiations during propagation and the Pade approximation has been employed to take care of the waves propagating at wide angles to the z-axis. The incorporated popular overlap integral (OI) has been used in the determination of the coupling efficiency of the devices, which in the case of TR is 95%, and SOI is 99.25%

Self-adaptivity of applications on network on chip multiprocessors: the case of fault-tolerant Kahn process networks

Technology scaling accompanied with higher operating frequencies and the ability to integrate more functionality in the same chip has been the driving force behind delivering higher performance computing systems at lower costs. Embedded computing systems, which have been riding the same wave of success, have evolved into complex architectures encompassing a high number of cores interconnected by an on-chip network (usually identified as Multiprocessor System-on-Chip). However these trends are hindered by issues that arise as technology scaling continues towards deep submicron scales. Firstly, growing complexity of these systems and the variability introduced by process technologies make it ever harder to perform a thorough optimization of the system at design time. Secondly, designers are faced with a reliability wall that emerges as age-related degradation reduces the lifetime of transistors, and as the probability of defects escaping post-manufacturing testing is increased. In this thesis, we take on these challenges within the context of streaming applications running in network-on-chip based parallel (not necessarily homogeneous) systems-on-chip that adopt the no-remote memory access model. In particular, this thesis tackles two main problems: (1) fault-aware online task remapping, (2) application-level self-adaptation for quality management. For the former, by viewing fault tolerance as a self-adaptation aspect, we adopt a cross-layer approach that aims at graceful performance degradation by addressing permanent faults in processing elements mostly at system-level, in particular by exploiting redundancy available in multi-core platforms. We propose an optimal solution based on an integer linear programming formulation (suitable for design time adoption) as well as heuristic-based solutions to be used at run-time. We assess the impact of our approach on the lifetime reliability. We propose two recovery schemes based on a checkpoint-and-rollback and a rollforward technique. For the latter, we propose two variants of a monitor-controller- adapter loop that adapts application-level parameters to meet performance goals. We demonstrate not only that fault tolerance and self-adaptivity can be achieved in embedded platforms, but also that it can be done without incurring large overheads. In addressing these problems, we present techniques which have been realized (depending on their characteristics) in the form of a design tool, a run-time library or a hardware core to be added to the basic architecture

JPL Quarterly Technical Review, Volume 2, No. 1, April 1972

Mariner spacecraft equipment, propulsion systems, telemetry, and spacecraft trackin

Portuguese SKA white book

Sem resumo disponível.publishe

FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3

In response to the 2013 Update of the European Strategy for Particle Physics (EPPSU), the Future Circular Collider (FCC) study was launched as a world-wide international collaboration hosted by CERN. The FCC study covered an energy-frontier hadron collider (FCC-hh), a highest-luminosity high-energy lepton collider (FCC-ee), the corresponding 100 km tunnel infrastructure, as well as the physics opportunities of these two colliders, and a high-energy LHC, based on FCC-hh technology. This document constitutes the third volume of the FCC Conceptual Design Report, devoted to the hadron collider FCC-hh. It summarizes the FCC-hh physics discovery opportunities, presents the FCC-hh accelerator design, performance reach, and staged operation plan, discusses the underlying technologies, the civil engineering and technical infrastructure, and also sketches a possible implementation. Combining ingredients from the Large Hadron Collider (LHC), the high-luminosity LHC upgrade and adding novel technologies and approaches, the FCC-hh design aims at significantly extending the energy frontier to 100 TeV. Its unprecedented centre of-mass collision energy will make the FCC-hh a unique instrument to explore physics beyond the Standard Model, offering great direct sensitivity to new physics and discoveries

FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3

Overview of the physics potential of a future hadron collider