Miracle-dz/UniFAR-FTUs huggingface dataset:
Baseline-free fatigue crack detection based on spectral correlation and nonlinear wave modulation

By generating ultrasonic waves at two different frequencies onto a cracked structure, modulations due to crack-induced nonlinearity can be observed in the corresponding ultrasonic response. This nonlinear wave modulation phenomenon has been widely studied and proven capable of detecting a fatigue crack at a very early stage. However, under field conditions, other exogenous vibrations exist and the modulation components can be buried under ambient noises, making it difficult to extract the modulation components simply by using a spectral density function. In this study, the nonlinear modulation components in the ultrasonic response were extracted using a spectral correlation function (the double Fourier transform) with respect to time and time lag of a signal’s autocorrelation. Using spectral correlation, noise or interference, which is spectrally overlapped with the nonlinear modulation components in the ultrasonic response, can be effectively removed or reduced. Only the nonlinear modulation components are accentuated at specific coordinates of the spectral correlation plot. A damage feature is defined by comparing the spectral correlation value between nonlinear modulation components with other spectral correlation values among randomly selected frequencies. Then, by analyzing the statistical characteristics of the multiple damage feature values obtained from different input frequency combinations, fatigue cracks can be detected without relying on baseline data obtained from the pristine condition of the target structure. In the end, an experimental test was conducted on aluminum plates with a real fatigue crack and the test signals were contaminated by simulated noises with varying signal-to-noise ratios. The results validated the proposed technique.
AUTOMATIC IDENTIFICATION METHOD OF CONSTRUCTION AND DEMOLITION WASTE BASED ON DEEP LEARNING AND GAOFEN-2 DATA

Abstract. Due to the relatively complex construction and demolition waste (C&DW) spectrum and texture, it is difficult to identify C&DW by simply constructing a remote sensing index. Therefore, this study proposes an automatic identification method of C&DW based on deep learning and the Gaofen-2 (GF-2) Data. Pingdingshan City and Jining City in China were selected as the research areas in the study. The dataset used for deep learning training and testing in the study area was captured by the GF-2 Data. On the basis of this dataset, the deep learning model DeepLabv3+ is used to identify C&DW. The overall accuracy rate of the deep learning model for identifying C&DW is 82.02%, and the overall mIoU is 82.39%. The accuracy of the model for the identification of C&DW areas is further verified by ground verification. The results of this study are helpful for the survey and management of C&DW, which is beneficial to the study of spatial and temporal distribution of urban C&DW, resource utilization and environmental pollution risk reduction.
8 Bit Split Array Based Charge Scaling Digital to Analog Converter with Rail to Rail Buffered Output

This thesis presents the design, simulation and layout of a silicon carbide (SiC) 8 bit split array charge scaling digital to analog convertor (DAC). The converter consists of the charge scaling capacitor chain with two operational trans-conductance amplifiers (op amp) in voltage follower configuration. The op amps used in the design have the input common mode ranges of 0 to 11.2 V and 4.7V to 14.5V respectively. Additional logic circuit topologies are designed, which help to switch the op amps when needed to provide a rail to rail unity gain at the output. As the design is based on the charge based approach it has the advantages of low power dissipation (capacitor array does not dissipate DC power), the output is sampled and held and the almost zero offset. The specification of the DAC is (1) power operation less than 200 mW (2) operation up to 1 MHz and (3) with a reset enables, to reset the convertor when needed. The main focus of the thesis is on the monotonicity and to reduce capacitor sizes. The size of the largest capacitor used in the design is 16pF which makes the design as compact as possible. The major area of application of this convertor is at high temperature applications where the silicon based integrated circuits(IC) fail to operate properly. ACKNOWLEDGEMENTS I would like to express my gratitude to my advisor Dr. H. Alan Mantooth, Dr. Matt Francis and Kacie Danielle Woodmansee for their valuable guidance and encouragement during my research and writing the thesis. Special thanks are given to Dr. Simon Ang, Dr. Roy McCann, Dr. Hameed Naseem and Dr. Randy Brown for their numerous discussions and lectures on the related topics that helped me improve my knowledge in the area. I would also like to thank Dr. Robert Saunders who supported me throughout the pursuit of my Master’s degree at University of Arkansas Great thanks given Ashfaqur Rahman for his help and suggestions in research and also I would like to thank students of MSCAD group for all their support and help with the use of lab resources and my friends especially shiva, Dr. Jian Lu and dharma for being supportive throughout my masters degree.
Affine Body Dynamics: Fast, Stable and Intersection-free Simulation of Stiff Materials

Fig. 1. Geared system.We propose an affine body dynamics (ABD) framework to efficiently and robustly simulate close-to-rigid contacting objects. ABD eases collision and contact processing costs over rigid body modeling while obtaining high-quality, intersection-free trajectories leveraging barrier-based frictional contact modeling. In this challenging stress-test benchmark we simulate a complex geared system composed of 28 toothed gears with frictional contact resolving all interactions. The combined gear set mesh is comprised of over 2.45M surface triangles. A torque applied to the actuated gear (red arrow) drives the motion of the entire system via contact, with over a quarter of all surface elements in active contact in every time step. Here we find that all the existing rigid body simulation algorithms, including rigid-IPC, fail to make progress, while ABD robustly simulates the example to completion. ABD enables large time step sizes (e.g., with Δ = 1/50 sec) even for such challenging, large displacement (rotation) contact processing. For a time step size of 1/100 sec, ABD simulates each step in less than 12 sec on an intel i9 CPU (multi-threaded), while the simulation runs interactively on a 3090 GPU (5-10 steps per second).
Marketing Strategy on Social Commerce Based upon Marketing Mix

: This study investigates the factors of the marketing mix in the context of social commerce for building marketing strategies. For this purpose, the authors built the research model, collected actual data, and analyzed the results. The results indicate that (1) experience goods, which were very difﬁcult to sell through e-commerce, are most likely to be sold through social commerce, (2) social commerce users prefer to buy products at low prices through coupons based on smart devices, and (3) the reliability of product/service information provided through social networking sites can directly inﬂuence social commerce sales through brand equity and collectivism.This study suggests that social commerceﬁrms can expand their market share by implementing a marketing strategy that allows consumers to obtain sufﬁcient information on discounted goods, focuses on brand differentiation to increase product reliability, and makes social commerce use through ofﬂine stores more convenient.
HIGHLIGHTED TOPIC Mechanism of Beneficial Effects of Physical Activity on Athersclerosis and Coronary Heart Disease Thrombosis, physical activity, and acute coronary syndromes

Kumar A, Kar S, Fay WP. Thrombosis, physical activity, and acute coronary syndromes. J Appl Physiol 111: 599–605, 2011. First published May 19, 2011; doi:10.1152/japplphysiol.00017. 2011. —Acute coronary syndromes (ACS) are common, life-threatening cardiac disorders that typically are triggered by rupture or erosion of an atherosclerotic plaque. Platelet deposition and activation of the blood coagulation cascade in response to plaque disruption lead to the formation of a platelet-fibrin thrombus, which can grow rapidly, obstruct coronary blood flow, and cause myocardial ischemia and/or infarction. Several clinical studies have examined the relationship between physical activity and ACS, and numerous preclinical and clinical studies have examined specific effects of sustained physical training and acute physical activity on atherosclerotic plaque rupture, platelet function, and formation and clearance of intravascular fibrin. This article reviews the available literature regarding the role of physical activity in determining the incidence of atherosclerotic plaque rupture and the pace and extent of thrombus formation after plaque rupture.
The Wealth of Generations*

This paper studies the wealth accumulation of different cohorts in the U.S. and France since 1950 and 1970, respectively. We provide a set of new stylized facts that shows a stark divergence between the wealth holdings of old and young adults since the 1980s, most strongly in the U.S. Using microdata for the U.S., we explore the reasons for this divergence by decomposing wealth accumulation into three components: saving, capital gains, and inheritances. While saving was the single most important component of wealth accumulation for cohorts born at the beginning of the 20th century, capital gains have started to play a much more prominent role for more recent generations. Our findings indicate that positive capital gains in recent decades are the main driver of the rising wealth differences between young and old adults. We also document stark changes in the life-cycle saving profile of old and new cohorts. Out of their lifetime incomes, different cohorts saved approximately the same, but older cohorts saved less at middle ages and more when old. JEL classification: D31, E21, E44, N32
Aspects of feasibility of a shipboard algal photobioreactor to capture carbon dioxide emissions

The CO2 contribution of shipping to global emissions is about 3.1% and emission reductions are becoming urgent as part of global measures to combat air pollution. This study was the first to investigate the implementation of an algal photobioreactor (PBR) on a ship to treat its gas emissions and produce biomass for commercial purposes. The research examined various aspects of the challenges faced, focusing on the biomass cultivation process of the application. The target was to use the waste streams of the ship (i.e., flue gas, waste heat and wastewater) to fulfil the PBR’s material and energy needs. A PBR configuration is proposed and constructed, considering the additional complications of a shipboard system. Algae from natural surrounding water were cultivated in lab conditions to explore the potential of this approach in a shipboard PBR. A theoretical hydrodynamic model was developed to compute gas hold-up and liquid velocity in airlift PBRs. The different bubble sizes and drag coefficients used were shown to greatly impact the results, but the effect of bubbles is not easily distinguished in the experiments. A model of the effects of light intensity, nutrient concentration and temperature on microalgal growth kinetics was also developed, for use in optimising the operating conditions. Finally, practical aspects of integrating the PBR into the shipboard system were examined. Availability of space in the ballast tanks of tankers and ferries in the existing fleet to accommodate a PBR to treat their total emissions was estimated. The need for a large water mass limits this application, but the comparatively higher potential of tankers for this implementation was demonstrated. Maintaining the PBR’s temperature by sparging with hot flue gas was proven to be unfeasible and a novel heat exchanger design was suggested and modelled, using an input produced by the hydrodynamic model.
PERFORMANCE STATUTE PLAN-BASED INTRUSION DETECTION FOR SECURITY CRITICAL REMEDIAL CYBER PHYSICAL SYSTEMS

Since the cyber physical systems are rising quickly, network security could be a severe problem that could be considered. Many Invasion recognition systems exist presently utilizes several methods of invasion recognition. Medical cyber physical systems have grown to be recognized nowadays and each advanced healthcare hospital utilize help of medical cyber physical systems to simplify complex tasks. Scalping systems evaluate status within the patient by way of physical sensors and apply equivalent reaction by way of actuators. We introduce one methodology meant for invasion recognition is recommended which utilize behavioural rule specs-basis Invasion recognition which utilize behavioural rules intended for defining normal behavioural patterns for almost any medical device. This course of action has in addition been proven to show greater true positives meant for a smaller false negative in addition to false positive rate which later enables you to definitely recognize harder furthermore to invisible attackers.
Age and Parity Are Not Related with Estrogen Receptor ( ER ) and Progesterone Receptor ( PR ) Expression in Invasive Breast Cancer of No Special Type ( NST ) at Abdul Wahab Sjahranie Hospital , Samarinda

Kanker payudara merupakan kanker yang paling banyak ditemui pada perempuan serta menjadi salah satu penyebab morbiditas dan mortalitas pada perempuan di seluruh dunia. Di Indonesia pada tahun 2020 terdapat kurang lebih 65.000 kasus baru, dengan perkiraan jumlah kasus dalam 5 tahun terakhir sejumlah 200.000 kasus. Status reseptor hormonal Estrogen Receptor (ER) dan Progesterone Receptor (PR) dipakai sebagai standar dalam menentukan prognosis dan prediksi terhadap respon dari suatu modalitas terapi tertentu pada kanker payudara invasif NST melalui pemeriksaan imunohistokimia. Faktor risiko terkait hormon yang mempengaruhi paparan estrogen dan progesteron diduga berkaitan dengan kanker payudara yang mengekspresikan ER/PR positif. Penelitian ini bertujuan untuk mengetahui hubungan usia dan paritas dengan ekspresi ER/PR pada kanker payudara invasif NST. Penelitian ini merupakan studi analitik cross sectional dengan menggunakan data sekunder yang diperoleh dari 82 sampel kanker payudara invasif NST di RSUD Abdul Wahab Sjahranie Samarinda periode 2019-2020 dengan teknik purposive sampling. Analisis hubungan pada semua variabel menghasilkan nilai p>0,05. Hubungan antara usia dan paritas dengan ekspresi ER/PR menghasilkan nilai p secara berurutan 0,344 dan 0,977. Tidak terdapat hubungan yang bermakna antara usia dan paritas dengan ekspresi ER/PR pada kanker payudara invasif NST di RSUD Abdul Wahab Sjahranie Samarinda.
Human Nutrition and Metabolism A Randomized Controlled Trial of the Influence of the Mode of Enteral Ornithine a-Ketoglutarate Administration in Burn Patients

To investigate appropriate mode and daily dose of enteral ornithine a-ketoglutarate (OKG) administration, 54 burn patients (total burn surface area: 20–50%) were included in a randomized controlled trial and assigned to receive either a supplement of OKG (10, 20 or 30 g/d) as bolus or continuous infusion, or a continuous infusion of an isonitrogenous amount of a soy protein mixture (Protil-1: 10, 20 or 30 g/d) in addition to their enteral diet. The influence of these treatments on clinical outcome and biological indices was evaluated. OKG administration significantly improved nitrogen balance and reduced 3-methylhistidine and hydroxyproline urinary elimination. This was associated with a gradual rise in plasma glutamine over time. Given as a bolus, OKG significantly improved wound healing, assessed both clinically [day of last graft: (mean { SEM) OKG bolus 23.7 { 2.1 d versus Protil-1, 39.9 { 9.9 d; P õ 0.05] and by hydroxyproline excretion, and biological markers of nitrogen metabolism, and tended to reduce duration of enteral nutrition (P Å 0.12). The higher catabolic status in the patients administered 20 g OKG/d at the onset of the study, despite randomization, precludes any definite conclusion (concerning the dose-effect relationship). However, based on 3-methylhistidine elimination, our data indicate a benefit of 30 g OKG/d administration over 10 g/d. This study further supports OKG supplementation in burn patients. In addition, this is the first trial based on objective data that favors bolus over continuous infusion of OKG in critically ill patients. J. Nutr. 128: 563–569, 1998.
In-Network Leaderless Replication for Distributed Data Stores

Leaderless replication allows any replica to handle any type of request to achieve read scalability and high availability for distributed data stores. However, this entails burdensome coordination overhead of replication protocols, degrading write throughput. In addition, the data store still requires coordination for membership changes, making it hard to resolve server failures quickly. To this end, we present NetLR, a replicated data store architecture that supports high performance, fault tolerance, and linearizability simultaneously. The key idea of NetLR is moving the entire replication functions into the network by leveraging the switch as an on-path in-network replication orchestrator. Specifically, NetLR performs consistency-aware read scheduling, high-performance write coordination, and active fault adaptation in the network switch. Our in-network replication eliminates inter-replica coordination for writes and membership changes, providing high write performance and fast failure handling. NetLR can be implemented using programmable switches at a line rate with only 5.68% of additional memory usage. We implement a prototype of NetLR on an Intel Tofino switch and conduct extensive testbed experiments. Our evaluation results show that NetLR is the only solution that achieves high throughput and low latency and is robust to server failures.
Primary Spinal Meningeal Melanocytoma

sions that arise from leptomeninges, which in certain regions normally contain melanocytic cells. A primary meningeal melanocytoma is the less common benign counterpart of a malignant melanoma (1-4). The MR imaging findings of meningeal melanocytoma have a relatively typical appearance, owing to the paramagnetic effect of melanin and hemorrhage. However, the differential diagnosis for a meningeal melanocytoma is often confusing due to its similar appearance with other melanotic neoplasms or tumoral hemorrhage. Since the biological behavior, treatment, and prognosis of these lesions are different, it is important to make a correct pathological diagnosis. We describe here the MR findings of a primary intradural melanocytoma case located in the thoracic spine with accompanying pathological and immunohistochemical analysis features. Case Report
Impacts of Nano-Gelatin Coating Containing Thymol and Nisin on Chemical Quality Indices of Rainbow Trout Fillets Stored at 4°C

Background: Seafood such as fish is an integral part of human nutrition and an excellent source of protein. However, their short shelf life is quite challenging for the food industry. Objectives: This study was carried out to investigate the effects of nano-gelatin coating embedded with thymol and nisin on the chemical quality indices of rainbow trout fillets during 16 days of storage at 4°C. Methods: The fillets were randomly divided into six groups, including control (C), gelatin (G), nano-gelatin (NG), nano-gelatin + thymol (NG-T), nano-gelatin + nisin (NG-N), and nano-gelatin + nisin and thymol (NG-T-N). The chemical quality of fish samples was assessed by performing pH, thiobarbituric acid reactive substance (TBARS), peroxide value (PV), free fatty acid (FFA), and total volatile basic nitrogen (TVB-N) analyses every four days. Results: The results revealed the stunning effect of nisin and thymol addition to the nano-gelatin coating on all chemical quality indices. Besides, PV, TBARS, and FFA analyses showed that nano-gelatin containing thymol significantly decreased lipid oxidation in fish fillet samples (P < 0.05). The lowest amounts of PV (8.33 meq oxygen/kg oil), TBARS, and FFA were recorded for NG-T-N. The best results in the TBARS test (P < 0.05) were observed in NG-T-N, followed by NG-T (1.45 and 1.69 mg of malonaldehyde/kg of tissue, respectively), and similar results were recorded for FFA analysis. On day 16, the lowest amounts of TVB-N were measured for NG-T-N, followed by NG-N and NG-T (26.13, 29.86, and 38.26 mg N/100 g, respectively). Both nisin and thymol reduced the TVB-N and increased the shelf life, and the best results were observed in groups treated with nisin and thymol simultaneously. However, the application of gelatin and nano-gelatin coating without nisin and thymol was ineffective in improving the chemical quality of samples, and they must be used with nisin and/or thymol. Conclusions: Gelatin nanogel embedded with thymol and nisin can be utilized to enhance the chemical quality and shelf life of fish fillets.
MSS20679 1435..1445

NELSON, M. E. , W. J. REJESKI, S. N. BLAIR, P. W. DUNCAN, J. O. JUDGE, A. C. KING, C. A. MACERA, and C. CASTANEDASCEPPA. Physical Activity and Public Health in Older Adults: Recommendation from the American College of Sports Medicine and the American Heart Association. Med. Sci. Sports Exerc. , Vol. 39, No. 8, pp. 1435–1445, 2007. Objective: To issue a recommendation on the types and amounts of physical activity needed to improve and maintain health in older adults. Participants: A panel of scientists with expertise in public health, behavioral science, epidemiology, exercise science, medicine, and gerontology. Evidence: The expert panel reviewed existing consensus statements and relevant evidence from primary research articles and reviews of the literature. Process: After drafting a recommendation for the older adult population and reviewing drafts of the Updated Recommendation from the American College of Sports Medicine (ACSM) and the American Heart Association (AHA) for Adults, the panel issued a final recommendation on physical activity for older adults. Summary: The recommendation for older adults is similar to the updated ACSM/AHA recommendation for adults, but has several important differences including: the recommended intensity of aerobic activity takes into account the older adult’s aerobic fitness; activities that maintain or increase flexibility are recommended; and balance exercises are recommended for older adults at risk of falls. In addition, older adults should have an activity plan for achieving recommended physical activity that integrates preventive and therapeutic recommendations. The promotion of physical activity in older adults should emphasize moderate-intensity aerobic activity, muscle-strengthening activity, reducing sedentary behavior, and risk management.