Impact Analysis Of System Research Articles

Impact analysis of the driver's license-type scoring system in the quality management of hospital medical records: An observational study.

The purpose of this study was to analyze the impact of implementing a driver's license-type scoring system on the quality management of hospital medical records. We collected relevant medical record quality control data before (from April to November 2021) and after (from April to November 2022) the use of the driver's license-type scoring management in the medical record quality management of a Grade-A tertiary general hospital in a prefecture-level city ("R Hospital" for short). We evaluated the impact by statistically analyzing the data using the χ2 test and t test with the SPSSAU online statistical analysis software. Compared with before the implementation of the new system, the filling rate of discharge medical records within 2 days, logical rate of day diagnosis and treatment medical records, logical rate of day surgery medical records, and clinical tumor-node-metastasis staging evaluation rate before tumor treatment significantly increased, and the difference was statistically significant (P < .05); the rate of errors or omissions on the first page of inpatient medical records significantly decreased, and the difference between before and after implementation of the new system was statistically significant (P < .05). We found that the driver's license-type scoring management adapted for use in the quality management of hospital medical records was effective in regulating the medical record writing behavior of physicians and improved the quality of medical records, thus meriting wide promotion.

Techno-Economic Assessment and Environmental Impact Analysis of Hybrid Storage System Integrated Microgrid

Techno-Economic Assessment and Environmental Impact Analysis of Hybrid Storage System Integrated Microgrid

Pretreatment of 3-hydroxyacetophenone in pharmaceutical wastewater using combined salting-out crystallization+ Fenton system and subsequent impact analysis of effluent water

ABSTRACTSelecting a suitable pretreatment process for pharmaceutical wastewater that is difficult to treat biochemically so that it can enter the subsequent biochemical treatment. In this study, pharmaceutical wastewater consisting of 45 g/L sodium bisulfate, 9 g/L 3-hydroxyacetophenone (3-HAP), and 36.75 g/L sulfuric acids,which is a kind of typical pharmaceutical wastewater, was used for the pretreatment case study, and the process was screened by technology. A salting-out crystallization+Fenton system(SC-F) was developed for the treatment of this wastewater. The salting-out agent is formed by the pH adjustment process without additional additions and the salting-out crystallization effect is significant for the precipitation of 3-HAP from the wastewater. Subsequently, the optimal operating conditions for SC-F were derived from experiments as H2O2 of 0.4692 mol/L, n(H2O2):n(Fe2+)=30:1, pH=3. Under optimal conditions, the reaction time of 2 h achieved a COD removal rate of 90% and a BOD/COD value of 0.56, confirming the effectiveness of the technology in treating this wastewater. Additionally, it was discovered that the Fenton treatment was not significantly impacted by the inorganic components of the effluent. Analysis of effluent properties and possible effects on subsequent treatment by LC-MS and toxicity analysis. The results show that the biodegradability are enhanced by the pretreatment technology. However, the effluent still suffers from high acidity and high salt content, and this study proposes a solution to this problem. Furthermore, research on the treatment of 3-HAP wastewater has not been reported and this study provides a new case study in the field of wastewater treatment.

Parameters impact analysis of CFRP defect detection system based on line laser scanning thermography

ABSTRACT Carbon fibre reinforced polymer (CFRP) plays an increasingly important role in many fields, and the non-destructive testing (NDT) for its defects is drawing more and more attention. In this paper, a finite element model is established and the surface temperature difference between the defective and non-defective areas is selected as the characteristic quantity to systematically study the impact of three parameters, such as scanning direction, laser power and scanning speed, on the detection effect in the line laser scanning thermography NDT system. Qualitatively, the scanning direction is consistent with the carbon fibre orientation, the higher the laser power, and the slower the scanning speed is, the more favourable the defect detection. Further, the data obtained from the simulation are fitted, and the results show that the scanning speed and laser power have exponential and linear relationships with the maximum temperature difference, respectively. A related experimental system was established, the laser power was set to 7-, 10-, 13- and 15 W as well as the scanning speed to 10-,20-, 40- and 50 mm/s, to investigate the temperature variation of CFRP specimens containing artificial defects. The experimental results show that a greater laser power or lower scanning speed can obtain better defect detection compared with a smaller power or higher scanning speed.

Budget Impact Analysis of the FreeStyle Libre Flash Continuous Glucose Monitoring System® in Patients with Type 1 Diabetes Mellitus and Type 2 Diabetes Mellitus with Multiple Daily Insulin Injections in Argentina.

To estimate the budget impact of the potential coverage of FreeStyle Libre Flash Continuous Glucose Monitoring System (FSL) for glycemia monitoring in all type 1 diabetes mellitus (T1DM) patients and in those with type 2 diabetes mellitus (T2DM) with multiple daily insulin injections, from the social security and the private third-party payer's perspective in Argentina. A budget impact model was developed to estimate the cost difference between the self-monitoring of blood glucose (standard of care) and FSL over 5years. Input parameters were retrieved from local literature complemented by expert opinion. Health care costs were estimated by a micro-costing approach and reported in USD as of April 2022 (1 USD = 113.34 Argentine pesos). One-way sensitivity and scenario analyses were conducted. From a social security third-party payer perspective, the incorporation of FSL was associated with net savings per member per month (PMPM) of $0.026 (Year 1) to $0.097 (Year 5) and net savings PMPM of $0.002 (Year 1) to $0.008 (Year 5) for T1DM and T2DM patients, respectively. Similar findings are reported from the private third-party payer perspective. The budget impact results were more sensitive to the acquisition costs of the FSL and test strips. The potential coverage of FSL in patients with T1DM and T2DM with multiple daily insulin injections could be associated with small financial savings considering current technology acquisition costs (FSL and test strips) for social security and the private sector third-party payers in Argentina.

System and Market-Wide Impact Analysis of Coordinated Demand Response and Battery Storage Operation by a Load-Serving Entity

Because of electricity markets, environmental concerns, transmission constraints, and variable renewable energy sources (VRES), coordinated operation of demand response (DR) and battery energy storage systems (BESS) has become critical. In turn, the optimal coordinated operation of DR and BESS by an entity can affect overall electricity market outcomes and transmission network conditions. The coordinated operation is desirable for the profit-seeking entity, but it may adversely affect the cost and revenues of other market participants or cause system congestion. Though few coordinated operation models already exist, our aim in this research is to provide a novel multi-objective optimization-based methodology for the coordinated operation of DR and BESS to boost market profit. Moreover, another goal is to simultaneously study the combined effects of such coordinated models on transmission networks and electricity markets for the first time. This paper has proposed a new method for coordinated DR and BESS utilization by a load-serving entity (LSE) to increase its profit. Moreover, it has employed agent-based modeling of the electricity systems (AMES) for testing our coordinated DR and BESS method under day-ahead market and transmission system conditions. Simulation results of case studies indicate that the operating costs of all LSEs decreased, and there was as much as 98,260 $/day in cost savings for BESS deploying LSE1. Although revenues of cheaper generation companies (GenCos) decreased, those of expensive GenCos increased or showed mixed trends. For example, GenCo 3 exhibits an 8765 $/day decrease in revenue for 25% BESS capacity, whereas a 6328 $/day increase in revenue for 37.5% BESS capacity. The variance of LMPs, widely used as a risk index, greatly decreased for the LSE utilizing the coordinated methodology, somewhat decreased for other LSEs but increased for cheaper GenCos with no LSE at the local node. Since BESS deployment decisions of an LSE can have system-wide or market-wide consequences, simulation analysis before deployment can help reduce market distortions or system congestions.

Budget impact analysis of the freestyle libre flash continuous glucose monitoring system® in patients with diabetes mellitus type 1 in Chile

ABSTRACT Objective To estimate the budget impact of covering the FreeStyle Libre Flash Continuous Glucose Monitoring System (FSL) for type 1 Diabetes Mellitus patients (T1DM), compared to self-monitoring of blood glucose (SMBG), from the perspective of public and private third-party payers in Chile. Methods A budget impact model was developed to estimate the cost difference between SMBG and FSL over five years. Two FSL coverage schemes were assessed. Input parameters were retrieved from the literature review and complemented by expert opinion. Healthcare costs were estimated by a micro-costing approach and reported in USD. Results For a public sector third-party payer, incorporating FSL implied a cost increase up to USD 0.013 per member per month (PMPM) for the fifth year under the broad coverage scheme and a net saving of 0.0001 PMPM (all years) under the restricted coverage scheme. From a private sector third-party payer, incorporating FSL implied savings up to USD 0.028 PMPM (fifth year) for the broad coverage scheme and up to USD 0.012 PMPM (fifth year) for the restricted scheme. Conclusion Incorporating the FSL for T1DM patients was associated with a marginal incremental cost for the public sector third-party payer and cost savings in Chile’s private healthcare sector.

Modeling and Removing Doppler Division Multiplexing Spurs in Automotive MIMO Radar

Doppler division multiplexing (DDM) is a popular slow-time modulation technique for automotive multiple-input and multiple-output (MIMO) radars. It requires accurate transmit phase shifters to avoid artifacts such as spurs that would degrade the radar system’s performance. This article proposes a system impact analysis of the constellation imbalance of the phase shifter. The spurs formation is modeled in a second part to understand the information they convey on the constellation imbalance. Subsequently, this information is exploited as a base for a novel constellation imbalance estimation algorithm. The estimation is finally utilized to predistort the phase shifter. The DDM spur model and the constellation imbalance estimation method are evaluated on a recorded automotive radar dataset. The results show that the imbalance in the phase shifter constellation can be reduced such that all spurs are suppressed below the noise floor. With the presented method, the DDM MIMO radar system can autonomously evaluate when recalibration is needed and perform self-calibration on the road to maintain the system’s performance throughout its life cycle.

프랑스 입법영향분석의 발전과 사례

The present paper attempts to deal with the effects of a given legislation in practical as well as academic perspectives, commonly called as legislative impact analysis, or legislative assessment as in case of pilot works in Korea. Yet the law and practice in this particular area differs from nation to nation, as the case of France exemplifies in this article.&#x0D; It is to be noted that various works on the works relating to the legislative impacts were largely incorporated in an act of the National Assembly in March 2021. That is the Framework Act on Administration which targets the current laws and regulations if necessary to improve the legal system in the administrative field, obviously including the subject matter. On the other hand, France has been conducting legislative evaluation in a reserved manner by stipulating the subject in a broad way, that is in the revised constitution in 2008.&#x0D; Thus the writer proposes in the present paper to focus on the following two points : First, considering French legislation, legislative procedures, and the relationship between the government and the National Assembly, attempts were made to pinpoint the characteristics and meaning of the impact analysis system and the possible significance. The French impact analysis is limited to the government-submitted legislation.&#x0D; Therefore it is characterized by the fact that it is prepared directly by the relevant department of the Government that submitted the bill. Criticism has always been targeted for lack of fairness. However, the impact analysis system should be understood not only in the form of government but also in the context of legal system and legislative procedures. In other words, horizontal comparison of the two systems, France and Korea for that matter, is difficult because it has a structural difference from the post-legislative impact analysis, as specified in the Framework Act on Administration in case of Korea.&#x0D; Second, among the points raised in the discussions on the French impact analysis, frequently pointed areas concern the so-called “Youth Impact Clause” introduced in 2016. In addition to the existing impact analysis method, special attentions were given to young people, and to the basis of the legislative analysis. At the beginning of the implementation of the Youth Impact Assessment System, the Ministry of Youth Affairs did not put forward active an opinion as expected. Above all, the issue was preempted rather by the general observation, such as “today’s youth-future generation” than the specific and technical points in legislation.

Agent-based effectiveness evaluation method and impact analysis of airborne laser weapon system in cooperation combat

The laser weapons will play a special role in the future high-tech war. To study the impact of airborne laser weapon on the System-of-System (SoS) effectiveness in cooperative combat, this paper proposes an indicator construction method based on the combination of the weapon capability indicator system and the combat simulation. The indicator system of capability is divided into 4 layers by the bottom-to-up generation mechanism of indicators. It can describe the logical relationship between the indicator layers from a qualitative perspective. Together with the 4 layers capability indicator system, a hierarchical framework of airborne laser weapon is established by the agent-based modeling and simulation. Impact analyses show that the SoS effectiveness improves with the increase of the laser weapon output power, the laser launcher diameter, and the photoelectric sensor pixel. But the SoS effectiveness promotion brought by the photoelectric sensor pixel is limited. The results can be used for the development of tactical airborne laser weapon.

Scaled Boundary Perfectly Matched Layer (SBPML): A novel 3D time-domain artificial boundary method for wave problem in general-shaped and heterogeneous infinite domain

Artificial boundary method is widely used in the numerical modeling of unbounded wave problem. However, the accurate modeling of truncated infinite domain with general geometry and heterogeneous materials is still a challenging task, especially for direct time-domain analysis in three dimensions (3D). In this paper, a novel 3D time-domain artificial boundary method, called Scaled Boundary Perfectly Matched Layer (SBPML), is proposed. This method is a generalization of the Perfectly Matched Layer (PML) based on a scaled boundary coordinates transformation inspired by the Scaled Boundary Finite Element Method (SBFEM), which is capable of using artificial boundary of general geometry (not necessarily convex) and considering plane physical surfaces and interfaces extending to infinity in the truncated infinite domain. Local scaled boundary coordinates are firstly introduced on the element-level into the truncated infinite domain to describe general geometry properties of the infinite domain. Then, a complex stretching function from PML is applied to radial direction of the local scaled boundary coordinates to map the physical space onto the complex space, resulting in a SBPML domain. The spatial discretization of the SBPML domain produces semi-discrete mixed displacement–stress​ unsplit-field formulations of third orders in time. The order of the obtained formulation can be reduced by one, enabling a seamless coupling with the standard displacement-based finite element formulation of the interior domain. The coupled system can be solved by an explicit time integration algorithm efficiently. The validation of the SBPML is demonstrated through several benchmark tests, including wave problems in unbounded domains with general geometries and heterogeneous material properties. Furthermore, the application of the SBPML in dynamic soil–structure interaction (SSI) is demonstrated using two engineering problems, including an impact analysis of soft rock-nuclear island system and a vibration analysis of soil-lined tunnel system.

Societal Impact Analysis of Community-managed Potable Water Supply System in Rural India

Lack of accessibility and affordability to safe and affordable drinking water remains a major challenge in fulfilling sustainable development goals. Community-based water management emerged as a policy response to address the issues. However, the impact of producing community-based water supply institutions on the community is hardly noticed in this context. This paper tries to fill the gap through the relational understanding between the provision of safe water and communities’ socioeconomic upliftment, which remains the main reason behind the establishment of the potable water facility in Porapara village located in West Midnapur district of the state of West Bengal, India. The study findings revealed that community participation through the process of empowerment results in good governance of the potable water project and the socioeconomic well-being of the community in Porapara village. This kind of intervention study may help policymakers in evaluating the societal impact to achieve socioeconomic well-being.

Impact Analysis of a Battery Energy Storage System Connected in Parallel to a Wind Farm

Increasing wind generation insertion levels on electrical grids through power converters may cause instabilities in the AC grid due to the intermittent wind nature. Integrating a Battery Electric Energy Storage System (BESS) in wind generation can smooth the power injection at the Common Coupling Point (PCC), contributing to the power system voltage and frequency stability. In this article, it is proposed to analyze the operation of a lithium-ion battery technology based 1 MW/1.29 MWh BESS connected in parallel with wind generation with a capacity of 50.4 MW. The main characteristics investigated are power smoothing and power factor correction. Experimental results show that BESS contributes to smoothing the active power and correcting the power factor of wind generation, improving the quality of electrical energy at the PCC.

Impact and performance efficiency analysis of grid-tied solar photovoltaic system based on installation site environmental factors

The performance of solar photovoltaic systems tends to decline if the operating conditions change from the nominal operating cell temperature due to environmental factors. The major factors include temperature and humidity variations, which cause thermal losses and open-circuit voltage drops in photovoltaic panels. This study investigates the correlations between solar photovoltaic performance and environmental factors by quantifying the real-time variables including temperature, humidity, dewpoint temperature, and heat index. Furthermore, the study investigates the difference between real-time measured and theoretically calculated temperature values with the help of weather station data to investigate the impact of temperature difference on the overall percentage power loss of the systems. The panels were installed at three distinct sites (rooftop, parking shed, and ground-mounted) connected to the same grid-tied system. Results reveal that the photovoltaic panel temperature has an inverse relation with the dew temperature and the humidity of the surrounding environment. The heat index value was found slightly less at the peak solar hours during the 24 h cycle of the measurement. The difference and relationship between temperature and humidity are measured and losses are highlighted based on the instantaneous occurrence of variables. Based on a difference between measured and calculated temperature values, results reveal that PV systems faced 27.95%, 5.41%, and 0.82% power losses for ground, roof, and parking installed PV systems, respectively.

Analysis of air conditioning system impact on a fuel cell vehicle performance based on a realistic model under actual urban conditions

In this study, a practical fuel cell vehicle considering the Heating, Ventilation, and Air conditioning system is considered to analyze hydrogen consumption under different working conditions. As a prevalent hydrogen-fueled vehicle, Toyota Mirai has been meticulously modeled in Simecenter Amesim software. The simulated model covers all of the vehicle's components with a concentration on Heating, Ventilation, and Air conditioning system. Since the air temperature and ‘weather conditions can significantly impact the vehicle's overall performance, various environmental conditions, including temperature variations, humidity, and varied solar fluxes, are taken into account. Furthermore, New York City is chosen as a densely populated megacity to simulate the dynamic behavior of the fuel cell vehicle under actual driving circumstances. The results illustrate that the Heating, Ventilation, and Air conditioning system can notably alter hydrogen consumption under real driving conditions. In this regard, turning on the Heating, Ventilation, and Air Conditioning system results in a 19% increase in fuel consumption. Moreover, the degradation phenomenon, which is a typical result of using fuel cell vehicles under urban driving conditions, impacts the vehicle's mileage and hydrogen consumption. The simulation results indicate that a fresh fuel cell stack consumes 80 g of hydrogen, while for 2500 and 5500 working hours fuel cells, the stack consumes 89.6 and 107 g of hydrogen, respectively. Based on the obtained results, a 33.75% increase in fuel consumption occurs by implementing a degraded fuel cell stack under real driving conditions.

PENCEMARAN LINGKUNGAN MENURUT UNDANG-UNDANG NO.32 TAHUN 2009 TENTANG PERLINDUNGAN DAN PENGELOLAAN LINGKUNGAN HIDUP (PPLH)

This study aims to examine and analyze what sanctions are given to perpetrators of pollution and environmental destroyers, and what factors hinder the law enforcement process in Indonesia. This study uses a form of normative legal research, namely research based on written legislation and various literatures related to the problems that will be discussed in this study. Sources of legal research can be divided into research sources in the form of primary legal materials consisting of legislation, official records or minutes in making legislation and judges' decisions, while secondary materials in the form of all publications on law which is not official documentation, publications on law include textbooks, legal dictionaries, legal journals and commentaries on law. Sanctions given to perpetrators of pollution and environmental destruction consist of administrative aspects, civil aspects, and criminal aspects. The factors that hinder the law enforcement process in Indonesia are; Legal Facilities, Law Enforcement Officials, Facilities and Facilities, Licensing, Environmental Impact Analysis System (AMDAL), Community Legal Awareness of the Proper Environment and compliance with legal provisions.

Contribution Mechanism and Impact Analysis of AC System at the Diode Natural Commutation and Conduction Stage During Bipolar Short-Circuit Fault for Single-Terminal VSC-Based DC Distribution Networks

For single-terminal voltage source converter (VSC)-based DC distribution networks, the characteristics of bipolar short-circuit faults are a key factor for the design of protection schemes and the selection of power electronic devices. However, the contribution of AC systems is usually ignored at the diode natural commutation and conduction stage. There is no precise mathematical analysis model for this stage, and no influence mechanism of AC system has been demonstrated from theoretical perspective. This article presents a fault analysis model of the diode natural commutation and conduction stage, focusing on the transient feeding process of VSC converter during the bipolar short-circuit fault for single-terminal VSC-based DC distribution networks. According to equivalent circuits of different transient substages, accurate mathematical state equations are established. Expressions of each electrical fault variation during different substages are provided. A precise mathematical model is constructed, which considers the contribution mechanism of AC system at this stage. Then, based on this mathematical model, the influence of the AC system on electrical fault variations is analyzed from a theoretical perspective. The analysis results show that the influence is always small under different conditions and that ignoring the contribution of AC system can still meet actual engineering needs. A simulation model is constructed using MATLAB/Simulink software. The simulation results validate the effectiveness and superiority of the analysis model.

Urban energy system impact analysis: integration of household solar panels and electric vehicles into smart cities via storage and smart charging

Smart charging and battery storage can improve the integration of electric vehicles (EV's) and photovoltaic solar panels (PV's) into the residential buildings of a smart city. The impact of those two solutions can vary across households with an EV, PV, both, or no technologies. Therefore, it is unclear how smart charging and storage impact the energy, economic, and environmental benefits of each technology adoption group. To address this problem, an urban energy system dynamics model compares two smart charging scenarios that optimize PV energy consumption and carbon emissions as well as one scenario that optimizes storage. The results show that in general storage reduces carbon emissions and increases solar energy use more effectively than smart charging. Specifically, it reduces emissions at a rate of 17% and smart charging at 7%; it also increases PV self-consumption at a rate of 45% and smart charging at 28%. The main reason for this difference is that storage is able to shift a larger electricity load than smart charging without compromising user convenience. However, expenditures decline at a faster rate in the smart charging scenario (–91%) than the storage scenario (–52%), due to the ratio of Value of Solar to residential tariffs. Therefore, this article recommends storage as a solution to all technology adoption groups; furthermore, cities are encouraged to invest in energy storage solutions in the short term as well as smart devices in the long term, so that eventually smart charging could shift a larger share of the loads as well. The contribution of this study is that it compares several experimental groups across the energy, emission, and economic benefits derived from their respective clean energy technologies; it also provides specific guidelines for parties interested in optimizing the benefits of their technologies.

Impact analysis of cyber system in microgrids: Perspective from economy and reliability

With the increasing requirements of power supply quality and operation economy of the microgrid in smart grid field, real-time energy scheduling methods that highly rely on the cyber system are inevitable supports for the optimal operation of microgrids. As a typical cyber-physical system, the disturbance and failure on the cyber side may make the performance of microgrids deviate from the expected ones. To quantify the degree to which these cyber contingencies influence the microgrid system, we propose a novel quantification and analytical framework. In this framework, the cyber system of a centrally controlled microgrid is abstracted consisting of information conversion, transmission and routing forward, as well as fusion and calculation. On this basis, the general information flow is modeled through information mapping between measured state and control command. Furthermore, an equivalent model for a cyber-physical microgrid system is formulated by integrating information mapping model into the state transition of physical microgrid. With this equivalent model, a unified impact analytical procedure is presented to accurately quantify the physical impact of multi-cyber-contingencies in both economy and reliability aspects. Numerical simulations on a microgrid validate the reasonableness and effectiveness of the proposed method.

Meshing impact analysis of planetary transmission system considering the influence of multiple errors and its effect on the load sharing and dynamic load factor characteristics of the system

The meshing impact on transmission system and internal meshing gear pair and its impact on the load sharing and dynamic characteristics of the system are not well understood yet. In this paper, the meshing impact models of internal gear pairs and planetary transmission system were successfully constructed, and the meshing impact point, meshing impact time and meshing impact force were accurately obtained. Meshing impact in gear transmission system is obviously affected by eccentricity error, installation error, and other errors. Due to the difference in error of each component, the internal and external gears of each branch lead to different meshing positions, which causes the constant change in meshing impact point, meshing impact time and meshing impact force. This creates difficulties in the analysis of meshing impact characteristics of gear transmission system. Load Tooth Contact Analysis (LTCA) method can be used to accurately analyse the change in position of gear tooth under load condition. Through the dynamic model of planetary transmission system, the influence in component errors on the contact position of tooth surface is obtained. Combining the loaded transmission error of the tooth surface under load and the geometric transmission errors under the influence of component errors, the model of meshing impact for accurately solving the system is deduced, and the influence of meshing impact on the system's load sharing coefficient and dynamic load factor coefficient is analysed. By comparing the planetary transmission system before and after considering the meshing impact of the system, it is found that the system's load-sharing coefficient increases slightly, dynamic load factor coefficient fluctuates significantly, and meshing force becomes more clutter after considering meshing impact.