A Sensitivity Analysis Approach for Assessing the Effect of Design Parameters in Reducing Seismic Demand of Base-Isolated Storage Racks

The most used global sensitivity analysis (GSA) method is based on variance. This is performed using Monte Carlo Sampling (MCS) or Latin Hypercube Sampling (LHS). It requires a large sample to obtain accurate estimates. Density-based methods, such as the GSA PAWN, have been developed to reduce the sample size without compromising the result. PAWN is simpler than other methods because it uses cumulative density functions (CDF) instead of probability density. This method has been widely used in areas such as environmental engineering with very good results, reducing computation time. However, its use in structural engineering is incipient. The PAWN method was used to classify the design variables of the isolation system in relation to their sensitivity, and in relation to the seismic response of industrial storage racks. The above was analyzed in terms of the effectiveness of each variable to reduce the seismic demand using a novel base isolation kinematic device (BIKD). Racks with different combinations of their structural parameters such as the number of storage levels, the height between them, and isolation period, among others, were studied. The dimensions of the racks were chosen to match those that would later be experimentally tested on shaking table. An earthquake whose response spectrum matched the design spectrum of current Chilean regulations, was considered as seismic forcing. The maximum base shear load, the displacement of the top level of storage and the floor drift were considered as target responses to be studied. Fixed base racks (FBR), as reference, and base-isolated racks (BIR) were analyzed. The results showed the effectiveness of using the BIKD system in reducing all three-target responses up to one order of magnitude. Additionally, it was determined that the parameters that have the greatest influence on the response correspond to the number of storage levels and the height between them, both for FBR and BIR.

Perancangan Sistem Informasi Retensi Rekam Medis Pasien Rawat Inap Menggunakan Visual Studio 2010 di Rumah Sakit Jasa Kartini Tasikmalaya

The hospital is a place to organize health efforts, namely every activity to maintain and improve health and aims to realize optimal levels of health for the community. This study aims to design an information system for inpatient medical record retention using Microsoft Visual Studio 2010 at the Jasa Kartini Hospital, Tasikmalaya. The research method used is a qualitative method with a descriptive approach. Data collection techniques are using observation, interviews and literature studies related to the subject matter of the research. As for the software development method using the waterfall. Based on the research conducted, various problems were found, including the medical record files that had been retained were not well organized at the time of storage so that they were not sequentially according to the medical record number, the lack of storage racks so that the medical records were not well organized and the retention process was slow. Therefore, it is necessary to design a medical record retention information system in the form of an application. The system design method uses Flowmap, DFD (Data Flow Diagram) and ERD (Entity Relation Diagram) and is implemented with Microsoft Visual Studio 2010 programming language with Microsoft Access database. Testing is done using the black box with the results of each successful form according to the design procedure.

THE ALGORITHM OF GOOD PLACEMENT ON THE SHELF BY CONSIDERING THE WEIGHT AND VOLUME OF THE GOODS TO THE CENTRE OF MASS

This study aims to develop an algorithm for placing goods on warehouse shelves. The process of placing goods in a warehouse is generally placed or arranged in a rack. Placement of goods must be correct to achieve space efficiency and high shelf utilization while maintaining balance on the storage shelf. The placement of items that have various volumes and weights must consider their placement position on the storage rack. Placing goods carelessly and only consider the shelf utilization rate will cause an imbalance. Shelf imbalance will accelerate the damage to storage racks, as well as the risk of collapsing shelves. Best placement of goods, in order to achieve shelf utilization and maintain shelf balance, must consider the weight and volume of goods placed against the total center mass of the rack. The procedure for placing goods on the shelf by considering the total center of mass was developed from research on warehouse layout. The procedure for placing goods in warehouse layout research is carried out on a two-dimensional plane (x-axis and y-axis). Whereas in this study, the placement of goods was carried out by considering the location of the goods in a three-dimensional plane (x, y and z axes). The placement algorithm is designed to place goods with various size (volume and weight) on multi-layer racks (with assumption each layer has same load capacity). This research produces two placing algorithms. The first algorithm focuses on the weight and volume of goods, so the pallets containing with largest volume and weight goods are arranged first and placed on the lowest layer. The second algorithm focuses on the weight of the goods, the pallets containing the heaviest goods will be arranged first on the lowest layer. Both algorithms are simulated using numerical data. The algorithm that focuses on weight (the second algorithm) has a better mass center than the algorithm that focuses on the weight and volume of goods (the first algorithm).

Tinjauan Pelaksanaan Sistem Penyimpanan Rekam Medis Berdasarkan Standar Akreditasi Di UPTD Puskesmas Kotanopan Mandailing Natal

Storage of medical records is one of the assessments in puskesmas accreditation standards. The medical record file storage system is very important to do in health care institutions, because the storage system can make it easier for medical record files to be stored in storage racks, speed up the recovery or retrieval of medical record files stored on storage racks, easy to return, and protect record files. from theft, physical, chemical and biological damage. The purpose of this study was to determine how the implementation of a medical record storage system based on puskesmas accreditation standards, which was carried out in August 2020. The research method used was descriptive research with a qualitative approach. The number of research informants was 4 people. Storage of medical records had not used tracers and expedition book as a means of replacing medical record files and notes in and out of borrowed medical record files. Meanwhile, tracer and expedition books can assist officers in searching for missing / out of place medical record files. This can hamper the provision of patient medical record files that are needed. It is hoped that the UPTD Puskesmas Kotanopan will provide regular training or debriefing to medical record officers

Dampak Penumpukan Dokumen Rekam Medis Terhadap Waktu Pengambilan Dokumen Rekam Medis Di RSU Sinar Husni Medan

The filling system is one of the administrators of medical records which is responsible for orderly administration in an effort to improve health services in hospitals. Accumulation of medical record documents will affect of work of officers in the filling section. The purpose of this study is to determine the impact of the bildup of medical records documents on the time of taking medical record documents at Sinar Husni Hospital. This research is a descriptive study with a qualitative approach. The population is all filling officers at the Sinar Husni Hospital and all patient medical records calculated on average in the third quarter of 2020, counted 719 documents. The samples in this study were 2 filling officers at the Sinar Husni Hospital and part of the medical record documents totaling 86 medical record documents that were taken incidentally. The instrument used was an interview guide. The measurement of time to take medical record documents uses a stopwatch. Data were analyzed descriptively. The results showed that the accumulation of medical record documents had an impact on the time to take medical record documents at the Sinar Husni Hospital, because the officers had difficulty carrying out filling activities because the access between shelves was narrower and the documents piled on the floor were not properly aligned, with an average of 10.05 minute. We recommend to add more storage space and shelves so that medical record documents that are stacked on the floor can be moved to the storage racks.

Numerical Study on Seismic Response of Steel Storage Racks with Roller Type Isolator

This research evaluates the effectiveness of using a roller-type base isolation device with tensile strength in reducing the dynamic response of industrial steel storage racks. These were subjected to a seismic input acting separately in both directions of the structure. The seismic record obtained from the earthquake that occurred in Llolleo, Chile, on 3 March 1985, was used as input. This earthquake was scaled in the frequency domain, adjusting its response spectrum to coincide with the design spectrum required by NCh2745. In the calculations of this spectrum, the most hazardous seismic zone (zone 3) and soft soil (soil III) that amplifies the effect of the low frequencies of the earthquake were considered. These frequencies are the ones that have the most affect on flexible structures such as high racks and systems with base isolation. Numerical time-history analyses were performed in fixed base racks and base isolation racks. In both cases, the models include semi-rigid connections with capacity for plastic deformation and energy dissipation. Parametric analyses were carried out considering the most relevant variables, using an algorithm programmed in MATLAB software. The maximum relative displacement, maximum basal shear load, and maximum absolute floor acceleration were considered as responses of interest. The results showed the effectiveness of using the base isolation device by reducing the absolute accelerations between approximately 75% and 90%, compared to the same fixed rack at its base. This makes it possible to reduce the vulnerability of the stored load to overturn under the action of a severe earthquake.

INTRODUCING BURNUP CREDIT FOR EXPANSION STAGE 2 OF THE EXTERNAL SPENT FUEL POOL AT GÖSGEN NPP

We present a summary of the actinide-plus-fission-product burnup credit criticality safety licensing analysis for Expansion Stage 2 (ES2) of the external spent fuel pool at Gösgen nuclear power plant. In ES2, the nine Expansion Stage 1 storage racks currently installed in the external spent fuel pool are going to be supplemented by nine ES2 storage racks with a significantly reduced fuel assembly pitch. They are designed for loadings with fuel assemblies above a well-defined minimum required burnup. The objective of the criticality safety analysis is to calculate the minimum required burnup values for the uranium and MOX fuel assemblies to be stored in the ES2 storage racks. We use a methodology that allows us to take into account the reactivity effects due to variabilities and uncertainties of all relevant parameters involved in a burnup credit criticality safety assessment in a bounding manner. These include manufacturing tolerances of the fuel assemblies and storage racks, the irradiation histories and burnup profiles of the spent fuel assemblies, the bias of the depletion code used to calculate the isotopic inventories of the irradiated fuel, and the bias of the criticality code used to calculate the neutron multiplication factor of the considered storage configuration. A combination of different statistical procedures is used to evaluate and propagate the uncertainty information on the input parameters and translate it into statistical confidence statements about the neutron multiplication factor. It should be noted that the presented analysis is related to the first implementation of a significant burnup credit for wet storage of PWR fuel in Switzerland.