Fast Response Services Research Articles

USER INTERFACE DAN USER EXPERIENCE APLIKASI PERLINDUNGAN ANAK DAN PEREMPUAN BERBASIS ANDROID MENGGUNAKAN PROSES DESIGN THINGKING

Violence is a major issue today, both in developed countries and in developing countries like Indonesia. Acts of violence are not only physical, such as beatings, murders, assaults and other acts of physical violence, but also abusive attitudes and uttering inappropriate or hurtful words can also be categorized as acts of violence. These acts of violence often occur against children and women. The minimal role of technology in the Integrated Service Center for the Empowerment of Women and Children is also one of the causes of less than optimal handling of acts of violence. Technological developments in the current era of globalization allow all levels of society to have general access, however, in handling violence against women and children it can be seen to be very lacking, in fact should get more attention. Based on this, it is necessary to have an application designed with a user interface design and user experience with a design thinking process to provide media services to the community, be it information, education, making reporting easier and especially when calling for emergency help to people closest or trusted in the event of an act of violence. to oneself and others in the community. As a result of the trial of designing a child and women's protection application, a mobile-based application design was produced that can make it easier for users to obtain information, literacy, reporting and fast response services.

STRATEGI PENGEMBANGAN BISNIS INDUSTRI JASA BIMBINGAN BELAJAR DENGAN METODE ANALISIS SWOT

Education is the foundation of knowledge for growth and development as a provision for living life. The increasing competition among students for achievement means that students need additional learning through additional tutoring institutions. The growth of additional tutoring institutions is increasingly rapid, making competitiveness even higher. The problem that is often faced in the field is that players in the tutoring services industry must try to stay afloat in the midst of the growing competition in the domestic tutoring business. One of the efforts of tutoring institutions to be successful and successful is by developing a tutoring business. 
 The problem formulation in this research is how to develop a tutoring business. The aim of this research is to develop a tutoring business using the SWOT (Strength, Weakness, Opportunities, and Threat) analysis method. The results obtained from this research are the appropriate strategy design, namely the implementation of the SO strategy. The conclusion of this research is that SO (Strength Opportunities) strategies that can be implemented are improving the approach to parents of students, commensurate service fees with services, improving fast response services to students' sudden needs, increasing the professionalism of teachers, improving learning program services both online and offline, improving quality books that are easy for students to understand, allocating teachers according to students' needs and improving facilities.

A review of battery energy storage systems for ancillary services in distribution grids: Current status, challenges and future directions

Battery Energy Storage Systems (BESS) are essential for increasing distribution network performance. Appropriate location, size, and operation of BESS can improve overall network performance. The appropriately scaled and installed BESS helps meet peak energy demand, improve the advantages of integrating renewable and distributed energy sources, improve power quality control, and lower the cost of expanding or re-configuring the distribution networks. This paper investigates the feasibility of BESS for providing short-term and long-term ancillary services in power distribution grids by reviewing the developments and limitations in the last decade (2010–2022). The short-term ancillary services are reviewed for voltage support, frequency regulation, and black start. The long-term ancillary services are reviewed for peak shaving, congestion relief, and power smoothing. Reviewing short-term ancillary services provides renewable energy operators and researchers with a vast range of recent BESS-based methodologies for fast response services to distribution grids. Long-term ancillary services will provide the distributed network system operators and researchers with current BESS-based bulk-energy methods to improve network reliability and power quality and maximize revenue from renewable energy generation. The review presents a list of energy storage policies and BESS projects worldwide with a cost-benefit analysis. The challenges for deploying BESS in distribution grids recommended solutions for the implementation challenges, and future research directions are also presented.

Dynamic dispatching and repositioning policies for fast-response service networks

We address the problem of dispatching and pro-actively repositioning service resources in service networks such that fast responses to service requests are realized in a cost-efficient way. By formulating this problem as a Markov decision process, we are able to investigate the structure of the optimal policy in the application domain of service logistics. Using these insights, we then propose scalable dynamic heuristics for both the dispatching and repositioning sub-problem, based on the minimum weighted bipartite matching problem and the maximum expected covering location problem, respectively. The dynamic dispatching heuristic takes into account real-time information about both the state of equipment and the fleet of service engineers, while the dynamic repositioning heuristic maximizes the expected weighted coverage of future service requests. In a test bed with a small network, we show that our most advanced heuristic performs well with an average optimality gap of 4.3% for symmetric instances and 5.8% for asymmetric instances. To show the practical value of our proposed heuristics, extensive numerical experiments are conducted on a large test bed with service logistics networks of real-life size where significant savings of up to 56% compared to a state-of-the-art benchmark policy are attained.

ANALISIS PELAYANAN PENANGGULANGAN BENCANA KEBAKARAN OLEH PEMADAM KEBAKARAN PEMERINTAH (STUDI KASUS KOTA PONTIANAK)

Disasters are events that can occur anytime and anywhere, as well as fire disasters. Along with the frequent occurrence of fire disasters, it is necessary to provide effective, fast response services for fire disasters. Fires occur due to many factors. To reduce losses, it is necessary to improve services to fire services from the government which is one of the minimum services of the government. Analysis is a thinking activity to describe a whole as a component so that it can recognize the signs of components, their relationships with each other and their respective functions in an integrated whole. Service analysis is here to measure fire service levels in Pontianak City. This research is a descriptive qualitative research Measurement of service quality by using 5 (five) dimensions with several indicators of each dimension of Tangible, Reliabelity, Responsiviness, Assurance, Emphaty. Based on the results of research conducted stating that the fire disaster management service carried out by the Pontianak City Fire Department was not optimal This is because there are still problems faced by the Pontianak City Fire Department where firefighting organizations are not yet independent, lack of facilities and infrastructure, lack of resources humans, lack of fire stations, less attention to the apparatus regarding the safety guarantee of fire services especially.

Trust access authentication in vehicular network based on blockchain

Data sharing and privacy securing present extensive opportunities and challenges in vehicular network. This paper introduces ‘trust access authentication scheme’ as a mechanism to achieve real-time monitoring and promote collaborative sharing for vehicles. Blockchain, which can provide secure authentication and protected privacy, is a crucial technology. However, traditional cloud computing performs poorly in supplying low-latency and fast-response services for moving vehicles. In this situation, edge computing enabled Blockchain network appeals to be a promising method, where moving vehicles can access storage or computing resource and get authenticated from Blockchain edge nodes directly. In this paper, a hierarchical architecture is proposed consist of vehicular network layer, Blockchain edge layer and Block-chain network layer. Through a authentication mechanism adopting digital signature algorithm, it achieves trusted authentication and ensures valid verification. Moreover, a caching scheme based on many-to-many matching is proposed to minimize average delivery delay of vehicles. Simulation results prove that the proposed caching scheme has a better performance than existing schemes based on centralized model or edge caching strategy in terms of hit ratio and average delay.

Evaluation of a 1 MW, 250 kW-hr Battery Energy Storage System for Grid Services for the Island of Hawaii

Battery energy storage systems (BESSs) are being deployed on electrical grids in significant numbers to provide fast-response services. These systems are normally procured by the end user, such as a utility grid owner or independent power producer. This paper introduces a novel research project in which a research institution has purchased a 1 MW BESS and turned ownership over to a utility company under an agreement that allowed the institution to perform experimentation and data collection on the grid for a multi-year period. This arrangement, along with protocols governing experimentation, has created a unique research opportunity to actively and systematically test the impact of a BESS on a live island grid. The 2012 installation and commissioning of the BESS was facilitated by a partnership between the Hawaii Natural Energy Institute (HNEI) and the utility owner, the Hawaiian Electric and Light Company (HELCO). After the test period ended, HELCO continued to allow data collection (including health testing). In 2018, after 8500 equivalent cycles, the BESS continues to operate within specifications. HNEI continues to provide HELCO with expertise to aid with diagnostics as needed. Details about the BESS design, installation, experimental protocols, initial results, and lessons learned are presented in this paper.

Day-Ahead Scheduling Considering Demand Response as a Frequency Control Resource

The development of advanced metering technologies makes demand response (DR) able to provide fast response services, e.g., primary frequency control. It is recognized that DR can contribute to the primary frequency control like thermal generators. This paper proposes a day-ahead scheduling method that considers DR as a frequency control resource, so that the DR resources can be dispatched properly with other resources. In the proposed method, the objective of frequency control is realized by defining a frequency limit equation under a supposed contingency. The frequency response model is used to model the dynamics of system frequency. The nonlinear frequency limit equation is transformed to a linear arithmetic equation by piecewise linearization, so that the problem can be solved by mixed integer linear programming (MILP). Finally, the proposed method is verified on numerical examples.

Service restoration based on AMI and networked MGs under extreme weather events

This study proposes a comprehensive power outage detection and service restoration framework for a distribution system with advanced metering infrastructure (AMI) meters and networked microgrids (MGs). To cope with the resilience challenge of communication networks in severe weather events, the authors propose a decentralised outage detection method which obtains the total number of customers and the total amount of lost load in the outage area via local information exchanges among AMI meters. To provide fast-response service restoration, the proposed framework incorporates the network reconfiguration and the local power support from the connected MGs. The optimal restoration problem is formulated as a mixed-integer quadratic programme that controls distributed generators and loads in MGs and line switches to maximise the restored critical loads. Case studies on a modified 69-bus distribution system with networked MGs demonstrate the effectiveness of the proposed methodology in both outage detection and service restoration.

Stabilising system frequency using HVDC between the Continental European, Nordic, and Great Britain systems

For future efficiency improvement of the frequency containment process (primary control) within European power systems, cooperation between (multiple) synchronous areas using their controllable HVDC interconnections is optioned. However, the differences in system size, HVDC interconnection capacity, and the balancing performance per individual system will have its specific system frequency effect for each different balancing cooperation concept. Consequently, without alignment on cooperation, HVDC balancing might lead to disproportional support between systems, to frequency oscillations, reserve unreliability and non-compliancy, and to network constraints. Therefore, this work assesses frequency quality and associated DC power flows for several balancing arrangements, using a developed load-frequency control model with frequency interdependency for coupled power system. For a trilateral balancing cooperation case study, it is found that certain cooperation concepts result in undesired frequency oscillation and poor frequency quality. However, cooperation where especially fast-response services are shared, such as virtual inertia, show improved system frequency performance. For the case where power imbalances are proportionately distributed among the systems, it is concluded that power transfers over HVDC interconnections are limited and additional control optimisation can be performed. Those concepts with aligned central or coordinated control show best results for a future cooperation for balancing between synchronous areas.

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