Solar photovoltaic (PV) power generating systems are fundamentally different from conventional synchronous generators. They do not have inertia and their dynamic behavior is dominated by the characteristics controls of electronic inverters. It important to understand impact increased penetration solar PV generation on system performance. This paper investigates small signal stability using modal analysis time-domain simulation. The simulation results show that can either beneficial or...

Abstract Context Point-of-care ultrasound (POCUS) has diverse applications across various clinical specialties, serving as an adjunct to findings and a tool for increasing the quality of patient care. Owing its multifunctionality, growing number medical schools are increasingly incorporating POCUS training into their curriculum, some offering hands-on during first 2 years didactics others utilizing longitudinal exposure model integrated all 4 school education. Midwestern University Arizona...

A femoral implant with a modular sleeve and stem has been designed to allow independent complete metaphyseal-diaphyseal fit fill as well rotation accommodate anteversion at the time of THA.In prospective study we asked whether such used during THA could provide (1) high long-term survivorship; (2) radiographically stable implants without radiolucencies, stress shielding, or osteolysis; (3) clinical scores in patients 15 20 years after primary THA.We prospectively evaluated 31 hips that...

It is widely accepted that bubbles are a necessary but insufficient condition for the development of decompression sickness. However, open questions remain regarding precise formation and behavior these after an ambient pressure reduction (decompression), primarily due to inherent difficulty directly observing this phenomenon in vivo. In research, information about gathered via means ultrasound acquisitions. The ability draw conclusions research using highly influenced by variability...

Doppler ultrasound is used currently in decompression research for the evaluation of venous gas emboli (VGE). Estimation heart rate from post-dive recordings can provide a tool physiological changes stress, as well aid development automated VGE detection algorithms that relate presence to cardiac activity.An algorithm based on short-term autocorrelation was developed MATLAB estimate precordial ultrasound. The evaluated 21 previously acquired and labeled spanning Kisman-Masurel (KM) codes...

Doppler ultrasound (DU) is used to detect venous gas emboli (VGE) post dive as a marker of decompression stress for diving physiology research well new procedure validation minimize sickness risk. In this article, we propose the first deep learning model VGE grading in DU audio recordings.A database real-world data was assembled and labeled purpose developing algorithm, totaling 274 recordings comprising both subclavian precordial measurements. Synthetic also generated by acquiring baseline...

This paper provides a summary of the various tools that have been considered and utilized by engineers at California Independent System Operator (CAISO) in transmission expansion planning operational studies. The described herein are typical but not limited for use reliability economic evaluation systems. It is intention CAISO to endorse any specific tools, rather illustrate enhancing system engineering

This paper provides an overview of probabilistic planning reserve margin studies at the California Independent System Operator. Currently, load serving entities in State California, with its retail under jurisdiction Public Utility Commission, are required to procure level 15 - 17 percent. However, requirement is deterministic nature. The Operator, which controls 80 percent state's electrical load, investigating use for operational control. study results shared Commission and Energy...

Myofascial trigger points (MTrPs) are palpable painful nodules that can develop in skeletal muscle and associated with myofascial pain syndrome (MPS), a common chronic condition. Symptomatic MTrPs often therapeutic target for management of MPS, but the pathophysiology poorly understood, diagnostic criteria lack reliability. Based on results our previous studies involving ultrasound imaging MTrPs, we hypothesized containing has heterogeneous fiber orientation within affected zone surrounding...

Diabetic kidney disease (DKD) causes pathophysiological changes resulting in vascular injury. Conventional tests for urinary albumin and glomerular filtration rate lag behind damage. We hypothesize that dynamic contrast-enhanced ultrasound (DCEUS) imaging as well power Doppler using microbubble contrast agents may serve early markers DKD screening. implement plane-wave on the Verasonics Vantage to perform high-framerate DCEUS imaging. Here, we demonstrate does not provide significant...

The CAISO has launched a Renewables Integration Study to assess the impact of renewable resources on system. This study was initiated determine if there are any performance related issues associated with implementation Portfolio Standards (RPS). RPS mandates utilities and other load serving entities procure 20 percent their customers' electricity needs from power by 2010. Meanwhile, many system studies have been performed for new wind generation interconnections submitted developers. paper...

Abstract With gold prices steadily going up in recent years, copper wire has gained popularity as a means to reduce cost of manufacturing microelectronic components. Performance tradeoff aside, there is an urgent need thoroughly study the new technology allay any fear reliability compromise. Evaluation and optimization bonding process critical. In this paper, novel failure analysis analytical techniques are applied evaluation process. Several FA/analytical FA procedures will be discussed...

Doppler ultrasound (DU) measurements are used to detect and evaluate venous gas emboli (VGE) formed after decompression. Automated methodologies for assessing VGE presence using signal processing have been developed on varying real-world datasets of limited size without ground truth values preventing objective evaluation. We develop report a method generate synthetic post-dive data DU signals collected in both precordium subclavian vein with degrees bubbling matching field-standard grading...

Hydrocephalus affects 1.1% of infants, resulting in abnormal accumulation cerebrospinal fluid and elevated intracranial pressure (ICP). Elevated ICP can occur prior to detectable morphological changes using computed tomography, delayed diagnosis treatment. To improve early diagnosis, we propose vascular imaging ultrasound localization microscopy (ULM) ultrafast Doppler measure cerebral blood flow due acute subacute elevations ICP. We performed a pre-clinical study on neonatal porcine model...

This paper provides a summary of the application California ISO approach in evaluating economic benefit Sunrise Powerlink transmission project, which was proposed by San Diego Gas & Electric Company (SDG&E). The (CAISO) applied its Transmission Economic Assessment Methodology (TEAM) original evaluation benefits Project. Five principles constitute methodology: consideration multiple perspectives; full network model; market-based pricing, accounting for strategic behavior generators;...

Abstract Integrated power devices (IPD, IC+MOSFETs) have gained popularity for their excellent management performance and compact size. During the development, it was soon found that exposing multi-die device debug could be challenging. In article, we will show how traditional decapsulation method fails to expose properly follow up analysis. We then present a new technique using laser ablation + chemical/plasma etch proves work IPD products. complete FA example combining this many other...

Venous gas emboli (VGE), of the order several tens micrometers, can be detected with ultrasound imaging after scuba diving and are a marker physiological decompression stress. Higher VGE post-dive associated higher risk sickness, but these bubbles also observed shallow, conservative completely asymptomatic dives. The amount post-dive, have been shown to exhibit significant yet unexplained inter- intra-subject variability, even for an identical, controlled exposure. Importantly, precise...