Miracle-dz/UniFAR-FTUs huggingface dataset:
A study of resonant-cavity and fiberglass-filled parallel baffles as duct silencers. [for wind tunnels]

Abstract : Acoustical performance and pressure drop were measured for two types of splitters designed to attenuate sound propagating in ducts-resonant-cavity baffles and fiberglass-filled baffles. Arrays of four baffles were evaluated in the 7- by 10-Foot Wind Tunnel Number 1 at Ames Research Center at flow speeds from 0 to 41 m/sec. The baffles were 2.1 m high, 305 to 406 mm thick, and 3.1 to 4.4 m long. Emphasis was on measurements of silencer insertion loss as affected by variations of such parameters as baffle length, baffle thickness, perforated skin geometry, cavity size and shape, cavity damping, wind speed, and acoustic field directivity. An analytical method for predicting silencer performance is described and compared with measurements. Unlike small, single-orifice resonators, the undamped, resonant-cavity baffles attenuated sound over a broad frequency range. With the addition of cavity damping in the form of 25-mm foam linings, the insertion loss above 250Hz of the resonant-cavity baffles was improved 2 to 7dB compared with the undamped baffles; the loss became equal to or greater than the insertion loss of comparable size fiberglass baffles at frequencies above 250Hz. Variations of cavity size and shape showed that a series of cavities with triangular cross-sections (i.e., variable depth) were superior to cavities with rectangular cross sections (i.e., constant depth). In wind, the undamped, resonant-cavity baffles generated loud cavity-resonance tones; the tones could be eliminated by cavity damping. Duct-resonance tones were also generated by configurations that had solid skin over portions of the baffle surfaces. The effects of skin porosity, baffle length, and baffle thickness are documented. (Author)
Automatic Detection of Anomalous Events for Advanced Real-Time Video Surveillance

This paper introduces the architecture and the implementation details of an automatic real-time video surveillance system, capable of autonomously detecting anomalous events. Nowadays, video surveillance systems are not flexible in adapting to different operative scenarios (they only work well in known and structured environments) and generally need human assistance to recognize and tag specific visual events. The proposed system can automatically adapt to different scenarios without human intervention (but the placement of the TV sensors), and automatically leans the “typical” targets behavior in each specific operative environment by means of robust self-learning techniques. The learned knowledge is used by the system to give alerts in an automatic way by analyzing the trajectories of visual targets in the controlled scene. Robustness is obtained through an improved version of the Altruistic Vector Quantization algorithm (AVQ). The modified AVQ autonomously establishes the number of trajectory prototypes, and improves the representativeness of the prototypes themselves. Anomalies are detected if visual trajectories deviate from the “typical” learned prototypes. Standard PCs and TV cameras have been used for the actual implementation, that has been tested in many real indoor and outdoor environments. Currently real time performance has been obtained (15 fps for each camera). A preliminary learning period (about 20 minutes to grant a suitable time interval to learn all the “typical” visual trajectories) is necessary. After that period the system gives automatic alerts about events that do not conform to typical behaviors. The field view can be changed (by panning the TV camera, for example), then the system relearns the new scenario without any human intervention (no thresholds or other settings) and accurately detects anomalous events.
Numerical Models in Fluid-Structure Interaction

Chapter 1 Numerical hybrid wave model Chapter 2 2D fully nonlinear numerical wave tanks Chapter 3 FEM on nonlinear free surface flow Chapter 4 Cylinder in steady and oscillatory flow Chapter 5 Vortex-induced vibration on flexible cylinders Chapter 6 Computation of wave effects using the panel method Chapter 7 Numerical computation of riser dynamics Chapter 8 Hybrid numerical method for wave-multibody interaction Chapter 9 Hydroelastic interaction Chapter 10 Coupled analysis of offshore floating systems
SCENIC BYWAYS: THEIR SELECTION AND DESIGNATION

A successful scenic byways program in a state or region should address the following issues, a study of which in the states of Iowa, Kansas, Missouri, and Nebraska is described. (a) "Scenic quality" is measured by the quality of the type of view (panorama, scene, or focal point) and adjusted for ease of viewing. A system on board a vehicle consisting of a laptop computer and a video camera connected to a distance measuring-device is used to collect information about a potential byway. Computer programs provide scenic quality ratings for the route. (b) "Road safety". Potential byways should be evaluated for driver expectancy violations (potentially hazardous locations) and predicted accidents per mile per year (AOMY). The safety information is collected while driving on the road with an on-board video camera, laptop computer, and distance measuring device. Computer programs produce roadway AOMY from the collected information. (c) "Scenic byway designation". Summaries of four papers developed for the Federal Highway Administration's 1990 National Scenic Byways Study are included. The topics range from how four states established new scenic byway programs to suggested scenic resource protection techniques. (d) "Scenic byways signing and information". For those wishing to drive scenic byways, there should be maps and other information listing the location of the byways, their scenic and historic attributes, and amenities such as food, fuel, and lodging. It is essential that the byway be signed so that the user does not inadvertently leave it. The design of a specific scenic byway guide sign is suggested.
Small Group Teaching: Tutorials, Seminars and Beyond

1. The Goals of Small Group Teaching 2. Conditions for Successful SGT 3. The Skills of Facilitation 4. Working with Student Groups: Techniques and Methods in the Classroom 5. Problem Based Learning 6. Student-Led Seminars and Tutor-less Tutorials 7. Skill Acquisition in SGT 8. Using C&IT in SGT 9. Syndicate Classes and Workshops 10. Student Diversity in SGT 11. Assessing Students Working in SGT Sessions
Electromagnetic Fields and Radiation

Introductory topics. Part 1 Extremely low-frequency fields: sources of electric and magnetic fields bioeffects of ELF fields epidemiological assessment studies regulatory activities and safety trends. Part 2 Radio frequency radiation: sources of radio frequency radiation introduction to bioelectromagnetics bioeffects of radio frequency radiation human and epidemiological studies RF regulations and protection guidelines incident field dosimetry RF site surveys internal field dosimetry acronyms and abbreviations.
MOLECULAR CHARACTERIZATION OF SALMONELLA SPECIES ISOLATED FROM CHICKEN TABLE EGG CONTENT

Salmonellosis is a foodborne illness caused by consumption of contaminated food. Infected raw or undercooked eggs are one of the major causes of salmonellosis, which lead to many public health problems. The aim of this study is isolation and identification of Salmonella spp. from the egg content samples, in addition, detection of some virulence gene ( avr A, inv A and stn ). Four hundred edible farm and balady eggs (200 of each) were randomly collected from different supermarkets and farms in El-Behera Governorate, Egypt. The obtained results revealed that the incidence of Salmonella species were 1 and 3% in examined farm and balady eggs, respectively and also 1% in balady eggs while couldn't be detected in farm eggs by direct molecular target genes detection. Serotyping of Salmonella isolates revealed that two different Salmonella serotypes were identified as; S . enteritidis (1strain), S . typhimurium (1 strain) from farm eggs and S . enteritidis (5 strains) and S . typhimurium (1 strain) from balady eggs. Six isolates of Salmonella serovars were molecularly identified, all had avr A gene at 422 bp, inv A gene at 284 bp and stn gene at 617 bp. In addition direct detection of virulence gene from egg content of ten egg samples for Salmonella revealed that 2 samples from balady eggs contain all target virulence genes ( avr A , inv A and stn ) with amplified products 422, 284 and 617 bp, respectively. Presence of inv A, avr A and stn gene in all isolates indicated that they are capable of producing gastroenteric illness to humans.
Diagnosis and management of multiple high-grade gliomas: a retrospective study

Background: Multiple high-grade gliomas (M-HGG) are uncommon lesions in the central nervous system. The management is controversial and the prognosis remains unfavorable. The aim of this study is to identify the characteristics of M-HGG and explore more appropriate therapeutic strategies for patients. Methods: A retrospective study was performed on 15 patients who were treated with M-HGG between August 2016 and March 2018 in our hospital. Clinical data including age, sex, Karnofsky Performance Scale (KPS) scores, number and location of lesions, surgical approach, pathology, adjuvant therapy (radio or chemotherapy) and prognosis were collected. Results: The most frequent position of tumors was temporal lobe, followed by frontal and occipital lobe. Patients who underwent surgical removal (gross total resection or subtotal resection) showed longer survival time than that in biopsy group (p < 0.05). The index of Ki-67 was higher (36.11 ± 1.8 vs 22.33 ± 2.1, p < 0.05) and the KPS score was lower (60.00 ± 2.7 vs 82.86 ± 2.9, p < 0.05) in death group than that in survival group. Two patients presented with different pathological grades: GBM (WHO IV), anaplastic astrocytoma (WHO III). Four patients presenting with methylation of genes of O-6-methylguanine DNA methyltransferase (MGMT) were still alive. No IDH1 mutation was detected in all cases. Eight patients died during follow-up, and the average survival period was 11.2 months. The survival time of living patients was more than 15.9 months. Conclusions: Surgical removal of dominant tumors of M-GBM is recommended, and stereotactic biopsy can achieve pathologic diagnosis if surgical removal is inaccessible. Comprehensive analysis of the clinical features and molecular pathology of multiple gliomas is helpful to find more effective diagnostic and therapeutic strategies.
Finite element analysis of flow and heat transfer with moving free surface using fixed grid system

A numerical study was performed on flow and heat transfer involving moving free surfaces that occurs in mold filling processes such as casting and injection molding. In these problems, the calculation domain changes continuously and the numerical treatment of the moving interface tends to cause artificial diffusion. Among the solution algorithms based on the Eulerian method, the volume-of-fluid (VOF) method was used because the method is simple and efficient in handling the complex flow patterns inside the cavity. To solve the transport equation of free surface without artificial smearing of the interface the baby-cell method was employed in the geometric reconstruction of the free surface. Furthermore, a predictor–corrector method was adopted in the time integration of volume-of-fluid (VOF) transport equation to increase the accuracy. The proposed scheme was verified through several benchmark problems. In order to show the capability of the proposed method, several three-dimensional mold filling processes were solved. The current algorithm was applied to the floating body problem. Three-dimensional floating body problems were tested.
Simultaneous Characterization of Lipid sn-Positional and Double-Bond Positional Isomers using On-Demand Electrochemical Mass Spectrometry

We present an on-demand electrochemical mass spectrometry workflow for lipid structural characterization with the capability of identifying double-bond and sn-positional isomers. Two voltage-controlled electrochemical reactions, interfacial electro-epoxidation and anodic corrosion of a cobalt electrode, are cascaded in this strategy. The epoxidized products and Co-adducted ions of lipids are fragmented in tandem MS to generate structure characteristic fragments that indicate double-bond and sn-positions. The unique feature of this workflow lies in the sequential localization of double bonds, elucidation of sn-positions, and collection of native lipid information in a single system and simply by tuning ESI voltages. This feature, as well as low sample consumption, no need for extra apparatus, and quantitative analysis, should allow wide applications in the lipidomic field.
Intraoperative and Postoperative Dexmedetomidine Combined With Sufentanil and Dezocine-based Patient-Controlled Intravenous Analgesia Increases Female Patients' Global Satisfaction Degree After Thoracoscopic Surgery: A Randomised Double-blind Controlled Trial

Background：There are no studies on the use of dexmedetomidine combined with sufentanil and dezocine-based patient-controlled intravenous analgesia (PCIA) in females undergoing thoracic surgery. We postulate that introducing dexmedetomidine to a combination of dezocine-based PCA drugs and sufentanil will increase female patients' global satisfaction degree.Methods：One hundred fifty-two female patients with physical classification type I or II according to the American Society of Anesthesiologists undergoing thoracoscopic surgery were arbitrarily classified into two categories, either receiving sufentanil and dezocine-based PCIA (group C) or incorporating dexmedetomidine with sufentanil and dezocine-based PCIA (group D). The patients' global satisfaction degree, postoperative nausea and vomiting (PONV), PCA bolus, rescue analgesia requirements, drug-related adverse effects, rest and coughing visual analogue scale (VAS) ratings, and Ramsay sedation scores (RSS) were measured at 6, 12, 24, 36 and 48 h after surgery.Results：Compared with the C group, the patient satisfaction degree was significantly higher; pain scores at rest and coughing were significantly different at 6, 12, 24, 36 and 48 h postoperatively; less rescue analgesia and PCA bolus were required; and a lower incidence of PONV was found in the D group. There were non-significant trends for the sedation scores and drug-related adverse effects in both groups.Conclusions：Dexmedetomidine combined with sufentanil and dezocine increased female patients' global satisfaction degree after thoracoscopic surgery. This effect could be linked to the improvement in postoperative analgesia and reduction in postoperative nausea and vomiting; the combined treatment did not increase drug-related adverse effects in female patients.Trial registration: Chinese Clinical Trial Registry number, ChiCTR2000030429. Registered on March 1, 2020.
Recent Developments and Prospect of Automation and Robotics Technology in Construction

Table 1 건설업 발생형태별 사망자수총 계 추 락 전 도 낙하, 비래 붕괴, 도괴669 327 29 35 39감 전 폭 발 교통사고 업무상질병 기 타28 32 44 77 58※ 주: 근로복지공단의 산재유족급여지급 결정된 사망자수와 지방노동관서에 산업재해조사표가 제출된 사망자수를 기준으로 분석한 것임Table 2 건설기능인력 종사자수 및 급여년도 종사자수(명)1인당년급여(천원)1인당일당(천원)급여액(백만원)2001 1,023,256 17,493 58.31 17,900,2392000 968,946 17,461 58.20 16,918,7171999 995,840 16,942 56.47 16,871,5081998 1,148,551 15,683 52.28 18,012,1741997 1,284,479 17,318 57.73 22,244,5991996 1,261,133 15,651 52.17 19,738,4091995 1,229,992 14,765 49.22 18,160,7441994 1,172,771 13,409 44.70 15,726,0181993 1,132,000 11,786 39.29 13,342,2211992 1,036,962 11,680 38.93 12,111,3871991 875,576 11,067 36.89 9,689,643※ 주: 대한건설협회 종합건설업조사, 건설환경민간백서1. 건설자동화 및 로봇화 기술의 개념과 정의1. 1 건설자동화 및 로봇화 기술의 개발 배경 건설 산업은 공장 및 생산자동화의 발전으로 이미 많은 부분 자동화가 이루어진 일반 산업 현장과는 달리 여전히 건설현장의 다양한 근로자들에 의해 공사 및 작업 등이 이루어지는 노동집약적 산업이다. 따라서 건설공사의 생산 효율성 및 품질 등이 근로자의 작업 수준에 직접적인 영향을 받아 결정되고 있고, 작업자의 미숙한 기술수준과 실수 등이 커다란 인명피해로 연결될 수 있는 등 타 산업에 비하여 노무의존율이 높다는 특징을 갖고 있다. 실례로 한국산업안전보건공단의 산업재해통계 자료에 따르면, 전체산업의 사망재해 중 건설 산업 분야의 재해로 인한 사망자 수가 가장 높은 비율을 차지하고 있고, 그 수치가 2006년 631명, 2007년 630명, 2008년 669명으로 감소되지 않는 추세에 있으며, 외환위기 이후 건설 산업의 환경 및 여건 변화에 따라 건설 기능 인력의 수급구조가 급격히 변화하여, 일일 평균 노임이 2007년 대비 2008년 6.3%로 상승하면서, 매년 증가하는 추세임을 확인할 수 있다 (Table 1, 2). 이는 건설 산업의 경우 오랫동안 현대산업의 대표적인 3D(Dirty/ Difficult/ Dangerous) 업종으로 인식되어 기능 인력들의 건설현장을 기피하는 현상이 두드러
14 Transistors CNTFET and CMOS Full Adder Cell for Modified GDI Technique

Adder Is Basic Unit For Any Digital System, Dsp And Microprocessor. The Main Issue In Design High Speed Full Adder Cell With The Low Power Dissipation. As We Know Cmos Technology Used For Vlsi Designing Cmos Has Many Drawbacks As High Power Short Channel Effect Etc. Then Cntfet (Carbon Nanotube Field Effect Transistor) Has Been Developed Which Has Same Structure As Cmos. The Difference Between Structure Of Cmos And Cntfet Is Their Channel. In Cntfet Channel Is Replaced By Carbon Nanotube. In This Paper We Compare Full Adder Circuit Using Cntfet With Gdi Technique And Cmos Implementation Of Adder Which Gdi Technique. Gdi Technique Is Used For Speed And Power Optimization In Digital Circuit. This Can Also Reduce The Count Of Transistor Which Affects The Size Of Device.
Mastering System Identification in 100 Exercises

This book enables readers to understand system identification and linear system modeling through 100 practical exercises without requiring complex theoretical knowledge. The contents encompass state-of-the-art system identification methods, with both time and frequency domain system identification methods covered, including the pros and cons of each. Each chapter features MATLAB exercises, discussions of the exercises, accompanying MATLAB downloads, and larger projects that serve as potential assignments in this learn-by-doing resource.
A Modified Outlier Detection Method in Dynamic Data Reconciliation

Data reconciliation technology can decrease the level of corruption of process data due to measurement noise, but the presence of outliers caused by process peaks or unmeasured disturbances will smear the reconciled results. Based on the analysis of limitation of conventional outlier detection algorithms, a modified outlier detection method in dynamic data reconciliation (DDR) is proposed in this paper. In the modified method, the outliers of each variable are distinguished individually and the weight is modified accordingly. Therefore, the modified method can use more information of normal data, and can efficiently decrease the effect of outliers. Simulation of a continuous stirred tank reactor (CSTR) process verifies the effectiveness of the proposed algorithm.
4D – Distracted Driver Detection Device

This paper describes an inexpensive distracted driver detection device built using a Raspberry PI3, a video camera, and python code. Distracted and drowsy driving are two of the leading causes of automobile accidents in the United States, and this inexpensive standalone can help prevent those deaths. live video feed of the driver’s face is read in and through the facial landmark detector within DLIB, the co-ordinates of the eyes and mouth are extracted in real time. The ratio of the distance between the eyelids in the vertical direction to the horizontal direction defined as Eye Open Ratio is used to evaluate if the eye is open or closed and a similar ratio on the mouth(Mouth Open Ratio) is used to identify if it is open or closed. By looking at the eye and mouth open ratio for several consecutive frames, it is determined with >95% accuracy whether the driver is drowsy, distracted, or yawning. If any of these behaviors are noted, the device will prompt an audible warning to encourage the driver to focus on the road. The prototype was tested under a variety of lighting conditions from dark to bright light and on different subjects with and without glasses. This test data was used to determine the threshold for when the eye or mouth is determines open or closed. Additionally, the prototype’s settings are customizable for a primary driver to further improve the accuracy. The device connects to a smart phone and sends information with the time stamp of the distracted driver incident. This device can be used to prevent distracted or drowsy driving-related deaths, and is an inexpensive attachment that can easily be fitted into a preexisting vehicle.
Needs assessment kit

This kit is a set of 5 interrelated and sequenced books that take the reader through the needs assessment (NA) process. These volumes explain how to implement an assessment and explain how to identify and prioritize needs. Book 1 Needs Assessment, An Overview - This book serves as the guiding framework for the other four books in the Kit. Book 2 Phase 1, Preassessment (Getting the Process Started) - This book focuses on numerous approaches for starting a meaningful needs assessment. Book 3 Phase 2, Assessment (Collecting Data) - This book describes in depth the five most common instruments and strategies of needs assessment. Book 4 Phase 2, Assessment (Analysis and Prioritization) - This book explores how to analyze and combine qualitative and quantitative data and how to put results together. Book 5 Phase 3, Post assessment (Planning for Action and Evaluating the Needs Assessment) - This book takes the reader through a journey of getting results utilized and then evaluating the needs assessment itself.
HIF-3α-Induced miR-630 Expression Promotes Cancer Hallmarks in Cervical Cancer Cells by Forming a Positive Feedback Loop

Purpose Hypoxia has crucial functions in the development and metastasis of cervical cancer by inducing the expression of numerous genes, including microRNA genes. But we know little about how the hypoxia factors and microRNAs orchestrate to regulate hallmarks of cervical cancer cells. Methods We conducted RNA sequencing (RNA-seq) and chromatin immunoprecipitation sequencing (ChIP-seq) experiments to investigate the targets of HIF-3α or miR-630. ChIP-qPCR and RT-qPCR were carried out to validate the results of ChIP-seq and RNA-seq. Cellular, molecular, and radiation experiments were conducted to explore the functions of miR-630. Results In this study, we showed that hypoxia-induced overexpression of HIF-3α increased the expression of dozens of miRNAs, including miR-630. Hypoxia could also directly induce miR-630 expression. ChIP-seq data showed that HIF-3α activates miR-630 expression by directly binding to the promoter of its host gene. Meanwhile, stable overexpression of miR-630 increased the expression of HIF-3α, but repressed the expression of HIF-1α, indicating a positive feedback loop between HIF-3α and miR-630. Consequently, stable overexpression of miR-630 in HeLa cells promotes cancer hallmarks, including radioresistance, inhibition of apoptosis, increased migration and invasion, and EMT-mediated metastasis. Meanwhile, inhibition of miR-630 showed opposite features. Conclusion Taken together, our findings indicate a novel hypoxia-induced HIF-3α and miR-630 regulatory feedback loop contributing to metastasis and progression of cervical cancer cells and suggest that HIF-3α and miR-630 might act as potential biomarkers and therapeutic targets for cervical cancer in the future.