Miracle-dz/UniFAR-FTUs huggingface dataset:
Highly decoupled single-crystal silicon resonators: an approach for the intrinsic quality factor

Special attention has been paid in this work to use all possible means to measure an intrinsic quality factor (Q) for silicon beam resonators realized on SOI wafers. Specifically, this work points to the energy dissipation into the support; a model is given and a high insulating system for clamped–clamped and clamped-free configurations has been studied, preserving the resonating element from support damping. Finite element analysis on these structures evidences values of Qsupport higher than 107. Out-of-plane and in-plane vibration Q values up to 1.0 × 105 have been measured under a high vacuum using, respectively, laser Doppler vibrometry and stroboscopic optical microscopy combined with image processing. The results have shown good agreement with thermoelastic theory. However, the observed agreement on the resonator dimension dependences is limited to quality factors lower than 3.0 × 104. Beyond these values, a physical limitation is evidenced in both cases (in-plane and out-of-plane) which does not match with the surface and clamping models listed. The role of the SOI wafer's oxide layer is discussed as a possible source of dissipation.
Biceps tenodesis combined with rotator cuff repair increases functional status and elbow strength

Purpose The aim of the present study was to prospectively evaluate the elbow flexion and supination strengths and the functional outcomes of patients following arthroscopic rotator cuff repair combined with simultaneous biceps tenodesis. Methods 19 patients who underwent arthroscopic rotator cuff repair and biceps tenodesis with at least 24 months of follow-up were included. Patients were evaluated using a visual analog scale (VAS) for bicipital groove pain, American Shoulder and Elbow Surgeons (ASES), and constant scores (CS), biceps apex distance (BAD), elbow flexion, and supination strengths. Results The VAS for biceps groove measurement averages in the postoperative 6th, 12th, and 24th months was lower in comparison to preoperative data and was considered to be statistically significant (p < .05). The constant score, an average of all postoperative measurements and scores, was found to be higher than preoperative values and was considered to be statistically significant (p < .01). There was a significant difference in the operated and non-operated forearm supination and elbow flexion muscle strength measurements at the postoperative 3- and 6-month follow-ups (p < .01). Conclusion Arthroscopic biceps tenodesis into the anchors of the lateral row in combination with rotator cuff repair provides an increase in the strength of elbow flexion and forearm supination, while decreasing pain. Level of Evidence Level IV
p -Wave Reflection Imaging of Submerged Soil Models Using Ultrasound

An ultrasonic p -wave reflection imaging system is used to noninvasively image submerged soil models with embedded anomalies and complex geometric layer contacts. The ultrasonic transducers emit compressive waves into water that subsequently transmit into the underlying soil, and measurements of the reflections are used to construct the images. The properties of the transducers and data acquisition hardware and software are explained. Fast signal stacking is used to improve signal-to-noise ratio and provide clearer images. Transducer directivity is explained as a wave passage effect, and transfer functions are derived for square and circular transducers to quantify directivity. The transfer functions agree reasonably with measured amplitude data. The cause of errors in the imaged position of dipping reflectors is explained, and a Kirchhoff migration algorithm is implemented to correct these errors. A soil model consisting of embedded high- and low-impedance anomalies, dipping soil layer contacts, and an u.
Techno-economic analysis of combined concentrating solar power and desalination plant configurations in Israel and Jordan

Abstract Combined concentrating solar power (CSP) and desalination plants represent a realistic future option for the production of electricity and fresh water for countries of the world’s sunbelt. In this paper, parabolic trough power plants for electricity production have been analysed in combination with multi-effect distillation (MED) and ultrafiltration/reverse osmosis (RO) desalination plants for two sites in Israel (Ashdod) and Jordan (Aqaba). Both RO and MED desalination plants were designed for a fresh water production capacity of 24,000 m3/d. The power block of the CSP plant was selected to meet the steam consumption of the MED plant at the design point, which led to a gross electrical power generation capacity of the power block of 42 MWel. Due to the low availability and generally high cost of coastal land, the CSP + RO plant consists of two separate units. It was assumed that the CSP plant is located at an inland location where there is land available. The RO plant is located at the sea, whil.
Influence of woven structure on coir rolled erosion-control products

ABSTRACT: Rolled erosion-control products (RECPs) are used in erosion-prone zones to hold the soil until permanent vegetation is established. A variety of materials are available for controlling soil erosion, but RECPs made of coir or jute offer several advantages such as better moisture retention in comparison with synthetic materials for the growth of vegetation, and they are durable and biodegradable. In this study, the application of plain, 2/1 twill and 4-end satin-woven RECPs were investigated for soil erosion control. Runoff soil erosion tests were carried out in a bench-scale setup according to ASTM D7101 with modifications at 15°, 30° and 45° slope angles. Simulated rainfall was applied to the test tray filled with soil brought from the lower Himalayan Shiwalik ranges. Germination tests were performed according to ASTM D7322. It was observed that twill woven RECPs showed better performance in germination tests with the highest total rooting and vegetation in the range 86.4–96.6% in comparison wit.
A Strongly-Nonlinear Model for Water Waves in Water of Variable Depth—The Irrotational Green-Naghdi Model

Summary and Conclusions The Irrotational Green-Naghdi equations are derived for ﬁnitewater-depth conditions, and tested numerically to show their self-convergence and accuracy. The linear and nonlinear dispersion ofthe permanent progressive wave solutions of the IGN equationsconverged to known exact solutions as the Level of the equationsincreases. The numerical solution of the IGN equations for un-steady problems, such as the run-up of solitary waves and nonlin-ear shoaling over a sloping beach, also converged. It appears thatthe IGN Level 3 equations can provide very accurate solutions formost engineering problems. The IGN Level 2 equations showedcomparable accuracy with the optimal WKGS equation set, whichis known to be the most accurate Boussinesq-type model.Once the accuracy of the IGN equations at each level is iden-tiﬁed, the level can be optimally chosen in future application ofthe model to various water-wave problems. Acknowledgment JWK and RCE have been supported by the ONR, Grant No.N000114-98-1-0800; the Program Manager was Dr. C. LinwoodVincent. JWK was also supported by Korea Science and Engi-neering Foundation for an initial stage of the present work. KJBwas supported by Grant No. R01-2000-00321 from the KoreaScience and Engineering Foundation. These grants are gratefullyacknowledged ~SOEST No. 6056!
Study the Negative Effects of Pseudoephedrine on Brain Tissues in Adult Albino Male Rats

In this study, (24) male animals were used, which were divided randomly into four groups. Each group included (6) animals, which are: the control group that was given drinking water and food daily, and the group of rats treated with pseudoephedrine at a dose of (40) mg / Kg of body weight for a period of (30) days, the group of rats treated with pseudoephedrine at a dose of (40) mg / kg of body weight for a period of (40) days, the group of rats treated with pseudoephedrine at a dose of (40) mg / kg of body weight for a period of (50) days, the animals dosed the drug by the oropharyngeal tube at a dose of (1) ml, and after the end of the experiment, the animals were scarified , brain samples were taken and preserved with formalin at a concentration of 10% until the tissue sections were made, when the meningeal membrane appeared the upper layers of the cerebral cortex in the group treated with pseudoephedrine for a period of 30 days were close to normal, while the group treated with pseudoephedrine for a period of (40) days showed shrinkage in the deep layers of the cerebral cortex and hemolysis in many blood vessels, and the meningeal membrane appeared.
ENVIRONMENTAL ACCOUNTING ON FINANCIAL PERFORMANCE AND REPUTATION OF MINING COMPANY IN INDONESIA

This research analyzes and tests empirically on how environmental accounting application can improve the company’s performance and reputation. The company has a strategic role in the development of national economy. They are not only contributing to the economic growth in Indonesia but also absorb the workforce in large quantities. The population in this research is all manufacturing companies listed on the Indonesia Stock Exchange in 2016-2018. Samples determined using purposive sampling, which are active mining companies on the Indonesia Stock Exchange in 2016-2018. From this sampling method, the final samples used in this research are 60 firm year samples (20 companies x 3 years). The data used is secondary data and had analyzed using simple regression analysis. The results show that the implementation of environmental accounting gives positive impact on financial performance and company reputation. The increasing quality of financial performance and intrinsic reputation is established by the presence of environmental quality and social responsibility undertaken by the company.
The Use of PVDF Strain Sensing in Active Control of Structural Intensity in Beams

An investigation of structural intensity control associated with flexural vibration in beams using strain sensing is presented in this paper. The instantaneous intensity is completely taken into account in the control algorithm, i.e., all the terms are considered in the real-time control process and, in particular, the evanescent waves are considered in this approach. Previous work has shown the validity of the approach using an array of accelerometers to measure structural intensity. It is the purpose of this paper to present results on the use of strain sensing in the control of structural intensity. A finite difference approach using discrete PVDF strain sensors provides the structural intensity sensing scheme. A feedforward filtered-X LMS algorithm is adapted to this energy-based control problem, involving a nonpositive definite quadratic form in general. In this respect, the approach is limited to cases where the geometry is such that the intensity component will have the same sign for the control source and the primary disturbance. Experimental validation of the approach is conducted on a free–free beam covered with viscoelastic material and excited harmonically by a shaker. A comparison is made between classical acceleration control and structural intensity control and the performance of both approaches is presented. These results tend to indicate that intensity control allows the error sensors to be placed closer to the control source and the primary disturbance, while preserving a good control performance.
Ultra-Low Dose Amiodarone Reduces Tumor Growth and Angiogenesis

Background: Pre-clinical studies suggest that Amiodarone induces cytotoxicity in several types of cancer cells, thus making it a potential candidate for use as an anti-cancer treatment. In this study, we examined Amiodarone's effects on glioblastoma multiforme (GBM), a highly aggressive and hypervascularized cancer. We hypothesized that Amiodarone would show an anti-angiogenic effect on GBM in addition to its previously suggested anti-cancer activity, and that an ultra-low dose would be both effective and possibly avert the drug’s side effects. Methods: The anti-cancer activity of Amiodarone was assessed by several in vitro assays using GBM cells. This included cytotoxicity, proliferation, transwell migration, Anoikis, colony-formation and three-dimensional (3D) spheroid growth assays. The anti-angiogenic effect of Amiodarone was tested on endothelial cells, using toxicity, proliferation, migration and tube formation in vitro assays. The anti-cancer and anti-angiogenic activity of Amiodarone was examined in vivo on three different murine models. C57BL/6J mice were utilized for the corneal neovascularization model and the Matrigel plug assay. Foxn1 nu mice were inoculated with GBM cells and used for the GBM tumor xenograft model.Results: In this study, we showed that Amiodarone has a significant anti-cancer and anti-angiogenic activity in vitro. Moreover, ultra-low dose Amiodarone markedly reduced the size of GBM xenograft tumors and displayed a strong anti-angiogenic effect in vivo. Conclusions: Our results strongly suggest that Amiodarone possess dual cancer fighting properties.
Drivers and barriers to occupant adaptation in offices in India

Occupant window-opening behaviour in Indian offices is a nascent field. This paper relies on the thermal comfort field study data from 28 Indian offices in Hyderabad and Chennai. Occupants in naturally ventilated buildings used the windows and doors adaptively as the seasons changed and the temperature varied. We found that 50% of the windows would be opened at an indoor air temperature of 30 °C, using logistic regression. We noted some non-thermal factors possibly affecting the adaptive operation of controls as well, including: design and construction, operation and maintenance, environmental, sociocultural, attitudinal and behavioural factors. A window's potential for modifying the comfort temperature hinges on the effective handling of these hurdles. We further categorized the barriers into those in the occupant's realm and beyond. Each category is further identified with the extent to which the barrier interferes with the control as an adaptive opportunity.
Silicon as a plastic material

Plastic reshaping is applied to different Si microelements. Because of the brittleness of Si at room temperature the process is performed at 900 °C. Microelements suitable for plastic reshaping are beams fastened at one side, stripes fastened at two sides, membranes and bars. Microelements were integrated into one wafer and fabricated by wet anisotropic etching. After this, in a testing machine equipped with a furnace, the reshaping process was carried out in different ways: (1) loading of elements in single chips with a silica rod or special tools and (2) simultaneous loading of all elements in the wafer (batch process) with special wafer tools. The tools (a stamp and a rest) were also fabricated by wet anisotropic etching. Using these tools very exact deformed shapes can be made, but the bend is limited by the depth/height of the tools. Very large bends can be realized by using the silica rod, but the exact positioning is difficult. Planned applications are a micro mirror with a slope of 45° to the wafer plane, a clip-system and a guide through several wafers.
Radiation Doses Due to Indoor Radon Exposure, Before and After the 2005 Earthquake, in Dwellings of Muzaffarabad and the Jhelum Valley, Azad Kashmir, Pakistan

Radiation doses from indoor radon exposure, before and after the 2005 earthquake, have been assessed from measurements taken in the city of Muzaffarabad and Jhelum valley, Azad Kashmir, Pakistan. Indoor radon concentration was measured in dwellings in Muzaffarabad city and the Jhelum valley after the devastating 2005 earthquake using CR-39 based radon box type detectors which were exposed to indoor radon for 60 days. After processing, the observed track densities were related to the indoor radon concentrations using a calibration factor of 0.0092 tracks cm-2 · hr-1 = 1 Bq m-3 of 222 Rn and compared with already published data obtained before the earthquake. The post-earthquake weighted average indoor radon concentration ranged from 65 Bq m-3 to 398 Bq m-3 for the dwellings of state capital city of Azad Kashmir where pre-earthquake values were in the range of 89 Bq m-3 to 167 Bq m-3. In the Jhelum valley, post-earthquake indoor radon concentrations varied from 81 to 509 Bq m-3 and 64 to 456 Bq m-3 in the bedrooms and kitchens, respectively while pre-earthquake radon concentration for Jhelum valley ranges from 86 to 236 Bq m-3 and 62 to 208 Bq m-3 in the bedrooms and kitchens, respectively. The post earthquake indoor radon concentration levels and hence radiation doses have been found higher than those of pre-earthquake values.
Stability problems of steel‐concrete members composed of high‐strength materials

Abstract The presented paper deals with the stochastic analysis of the ultimate limit states of steel‐concrete building members. The load carrying capacity of steel‐concrete columns, comprising of steel profiles encased in high strength concrete, in compression is analyzed. The first part of the paper lists assumptions for the determination of the theoretical load carrying capacity of the column. Principles of elasticity and plasticity are used to determine stresses in the concrete and steel sections. Statistical characteristics of input material and geometrical imperfections are listed. Results of the theoretical analysis are then compared with results of experimental research. Statistical characteristics of obtained results of the theoretical analysis were verified using statistical characteristics obtained from experimental research. Numerical simulation LHS and Monte Carlo methods, which take into account the influences of variability of input imperfections, were employed. The influence of the utiliza.
Highway bridges and environment—sustainable perspectives

Civil engineering infrastructure is generally maintained in accordance with safety, economic and technical issues. But what of the environmental impact of such activities? Regular maintenance can have a significant environmental impact—particularly in the case of bridges, where closure can result in traffic jams and lengthy detours. Higher cost but lower maintenance components and transfer of structures to lower-grade sites are possible answers which, until now, have been difficult to assess. This paper reports on a life-cycle assessment method developed to factor environmental impact into bridge maintenance strategy. Though developed for bridges, it has potential application throughout the facilities management sector.
Tensile Testing of Polycrystalline Silicon Thin Films Using Electrostatic Force Grip.

In this paper, a new tensile tester for thin films is presented. This tensile tester has a grip that fixes a thin film specimen using electrostatic force. The tester was constructed in a scanning electron microscope (SEM) chamber. Using this tester, the tensile strengths of polycrystalline silicon (poly-Si) thin films have been measured. The tested part of the specimen is 30-300μm long, 5μm wide and 2μm thick. The fracture of the poly-Si thin film was brittle. The mean tensile strength was 2.0-2.6GPa, depending on the length of the tested part. The size of the critical flaw that initiates fracture of the poly-Si thin film is 28-47nm, rather small than the grain size of the poly-Si thin film.
Cable vibration control with a semiactive MR damper-numerical simulation and experimental verification

Excessive stay cable vibrations can cause severe problems for cable-stayed bridges. In this paper a semiactive Magnetorheological (MR) damper is investigated to reduce cable vibrations. The control-oriented cable-damper model is first established; a computer simulation for the cable-damper system is carried out; and finally a MR damper is experimentally used to reduce the cable vibration in a laboratory environment using a semiactive control algorithm. Both the simulation and experimental results show that the semiactive MR damper achieves better control results than the corresponding passive damper.
Clinical features of 162 fatal cases of COVID-19: a multi-center retrospective study

Abstract Background The coronavirus disease 2019 (COVID-19) has affected approximately 2 million individuals worldwide; however, data regarding fatal cases have been limited. Objective To report the clinical features of 162 fatal cases of COVID-19 from 5 hospitals in Wuhan between December 30, 2019 and March 12, 2020. Methods The demographic data, signs and symptoms, clinical course, comorbidities, laboratory findings, computed tomographic (CT) scans, treatments, and complications of the patients with fatal cases were retrieved from electronic medical records. Results The median patient age was 69.5 (interquartile range: 63.0–77.25) years, and 80% of the patients were over 61 years. A total of 112 (69.1%) patients were men. Hypertension (45.1%) was the most common comorbidity, while 59 (36.4%) patients had no comorbidity. At admission, 131 (81.9%) patients had severe or critical COVID-19, whereas 39 (18.1%) patients with hypertension or chronic lung disease had moderate COVID-19. In total, 126 (77.8%) patients received antiviral treatment, while 132(81.5%) patients received glucocorticoid treatment. A total of 116 (71.6%) patients were admitted to the intensive care unit (ICU), and 137 (85.1%) patients received mechanical ventilation. Most patients received mechanical ventilation before ICU admission. Approximately 93.2% of the patients developed respiratory failure or acute respiratory distress syndrome. There were no significant differences in the inhospital survival time among the hospitals (P=0.14). Conclusion Young patients with moderate COVID-19 without comorbidity at admission could also develop fatal outcomes. The in-hospital survival time of the fatal cases was similar among the hospitals of different levels in Wuhan.
International organizations and secessionist crises: The relevance of agenda setting

How international organizations influence the domestic politics and foreign policies of states is often ignored in the study of international cooperation. This article develops an approach focusing on how states may influence the international agenda, which then shapes the position‐taking opportunities and constraints politicians face as they try to maintain their domestic political positions. This article is a preliminary exploration of how agenda setting works, what kinds of agenda‐setting strategies are available, and under what conditions agenda setting matters. Aspects of past secessionist crises will be used to clarify the discussion. The interaction between domestic position taking and international agenda setting will then be applied to the current crisis in Yugoslavia to determine why Greece, in particular, has been more influential than one might have expected.
Ultra-low-voltage SOI CMOS inverting driver circuit using effective charge pump based on bootstrap technique

A novel SOI CMOS inverting driver circuit is reported using a concise charge pump based on bootstrap technique (CPBT) for ultra-low-voltage (ULV) VLSI applications. The ULV driver with CPBT composed of a bootstrap capacitor, a pre-charge device and a driver device, provides a four times speed improvement as compared to a counterpart circuit using the direct bootstrap technique at an output load of 100 fF operating at 0.5 V.