Miracle-dz/UniFAR-FTUs huggingface dataset:
Terminal Sliding-Mode Control of Grid-Side Converter of Wind Energy Conversion Systems in Unbalanced Grid

Firstly, a mathematical model of grid-side converter of PMSG is established when the power grid voltage imbalance fault occurs. According to the characteristics of its mathematical model, a full-order sliding mode controller is applied to current inner loop. The controller has non-singular and chattering characteristics. On the basis of the traditional PI regulator, the power feed-forward is added in the voltage loop, which optimizes DC bus voltage stability. The design of the control system does not require rotation transformation, PLL, decoupling and separation of current sequence. Under the condition of unbalanced power grid, different control objectives can be achieved according to the design requirements.
Markov Processes and Semigroups of Operators

In this paper the relations between various semigroups of operators and between various infinitesimal operators connected with a homogeneous in t Markov process are investigated. General conditions are established under which the Markov process is determined by its corresponding infinitesimal operator.Let $U_t $ be a semigroup of linear operators in the Banach space L such that $\|U_t \| \leqq 1$. Let $T_t = U_t $ be an adjoint semigroup in the conjugate space $B = L^ * $. More abstractly the main object of this paper can be characterized as the study of semigroups $T_t $ and its infinitesimal operators in strong and weak topologies of space B.
Dual-Modality Molecular Imaging of Tumor via Quantum Dots-Liposome–Microbubble Complexes

Molecular imaging has demonstrated promise for evaluating the expression levels of biomarkers for the early prediction of tumor progression and metastasis. However, most of the commonly used molecular imaging modalities are relatively single and have difficulties imaging complex biological processes. Here, we fabricated αvβ3-integrin-targeted quantum-dots-loaded liposome–microbubble (iRGD-QDLM) complexes that combined ultrasound imaging with optical imaging. The resulting iRGD-QDLM has excellent binding capability to 4T1 breast cancer cells. Ultrasound molecular imaging of 4T1 tumors demonstrated that significantly enhanced ultrasound molecular signals could be observed in comparison with non-targeted QDLM. Importantly, our study also suggested that iRGD-QDL on the surface of microbubbles could be delivered into a tumor by ultrasound-mediated microbubble destruction and adhered to αvβ3 integrin on breast cancer cells, achieving transvascular fluorescent imaging. Our study provides a novel approach to dual-modality molecular imaging of αvβ3 integrin in the tumor tissue.
Based on Role Expectation to Discuss Role Ambiguity and Practice of University Teachers in Business Administration

As a result of social change, the issues, such as the complexity of family structure and increasing student problems, are becoming more complicated. Both schools and parents have high expectations of teachers and expect them to solve the problems. Considering the many different factors involved in this issue, this could lead to a psychological and physiological imbalance in teachers, especially in relation to their emotions which results in role ambiguity. The participants of this study consisted of teachers in business administration departments of universities in China. During the data collection, 450 copies of the questionnaire were distributed. A total of 363 valid copies were retrieved, with a retrieval rate of 81%. It can be concluded that the results of this study can help national university faculty present professional spirit and attitude toward the professional service, which in turn promotes the standard of national education in universities.
Removal of strong noise in magnetotelluric data using grey wolf optimized wavelet threshold

Traditional magnetotelluric signal processing usually uses time–frequency transformation method. Wavelet is also a time–frequency transformation method that used to suppress the magnetotelluric noise. However, the selection of the threshold is very significant, and the unsuitable threshold will lead to excessive distortion of the reconstructed signal. Thus, we propose a method for magnetotelluric noise suppression using grey wolf optimized wavelet threshold. First, the magnetotelluric signal is decomposed by wavelet with appropriate wavelet basis and decomposition layers. The generalized cross‐validation criterion is used as the fitness function of grey wolf optimizer algorithm, which optimizes the threshold of each decomposition layer. Then, the detail coefficients of each layer and the maximum layer of the approximation coefficients are used in the optimized threshold. Next, the inverse wavelet transform is performed. Finally, the noise contour is obtained through iteratively searching for the optimal threshold, and the useful magnetotelluric signal is reconstructed. Simulation experiments and measured magnetotelluric data processing show that the large‐scale interference can effectively be suppressed, and the reconstructed magnetotelluric signal retains the more abundant low‐frequency of useful information. Compared with the remote reference method, fixed threshold method and Birge–Massart layered threshold method, the proposed method realizes the wavelet denoising with adaptive threshold selection in the magnetotelluric noise suppression. The results obtained show smoother and more continuous apparent resistivity–phase curves, which verifies the effectiveness of the optimization.
A Modified Positive Output Super-Lift Luo DC-DC Converter with Improved Voltage Boost Ability

An improved topology of the positive output super-lift Luo converter is proposed. The continuity of the input current waveform in the original topology is maintained while the voltage boost ability has been improved. Indeed, the voltage-lift technique has been applied twice, which leads to a voltage gain ratio higher than of the original super-lift topology. Some comparisons were made that indicated the topology is of great benefit, where a high voltage gain is required within the duty cycles lower than 50 percent, i.e. the proposed topology outperforms the quadratic boost converter both in voltage gain and efficiency, albeit within the specified operating range. The claims and calculations have been validated through experimental results.
Evenly distributed unitaries: On the structure of unitary designs

We clarify the mathematical structure underlying unitary t-designs. These are sets of unitary matrices, evenly distributed in the sense that the average of any tth order polynomial over the design equals the average over the entire unitary group. We present a simple necessary and sufficient criterion for deciding if a set of matrices constitutes a design. Lower bounds for the number of elements of 2-designs are derived. We show how to turn mutually unbiased bases into approximate 2-designs whose cardinality is optimal in leading order. Designs of higher order are discussed and an example of a unitary 5-design is presented. We comment on the relation between unitary and spherical designs and outline methods for finding designs numerically or by searching character tables of finite groups. Further, we sketch connections to problems in linear optics and questions regarding typical entanglement.
The ultraviolet infrared mixing problem on the noncommutative Moyal space

It is shown that the mixing of ultraviolet and infrared divergences in quantum field theory on Moyal space is not an artefact of the Euclidean framework, but occurs also in the Hamiltonian setting when the interaction is given in terms of the Moyal twisted convolution product. The mixing mechanism in both settings is examined from the point of view of microlocal analysis and it is shown that they are different from one another.
Prostate Cancer Screening Practice and Associated Factors Among Men in Public Health Facilities of Hossana Town, Ethiopia

Background Prostate cancer is a disease of the prostate gland. It is a recognized tumour in men and is common worldwide. It is the second most frequent cancer and the fifth leading cause of death in males worldwide. Worldwide, prostate cancer screening continues to be a highly contested topic with a variety of differences in recommendations for screening uptake. However, for men considered to be at risk, screening continues to be the most effective method for lowering death through early identification of prostate cancer. Objective To determine prostate cancer screening practice and associated factors among adult men in public health facilities of Hossana Town, Ethiopia. Methods Facility-based cross-sectional design was used. All adult men, whose age >40 years attending public health facilities found in Hossana town were included in this study. From each public health facility, representative numbers of participants who fulfilled inclusion criteria were included in the study. A total of 422 sample sizes of adult men were used. A consecutive sampling technique was used to select study participants in each health facility. An interviewer-administered questionnaire was employed to collect data. Both descriptive and advanced analyses were performed using SPSS software version 26.0. In bivariable analysis, variables with a p-value <0.25 were considered for multivariable analysis. Finally, odds ratio with 95% CI and p-value <0.05 were used to declare factors as significantly associated with the outcome variable. Results About 7.2% (30) of the participants were screened for prostate cancer in this study. Ever heard about prostate cancer [AOR=26 (7.06–96.90)], family history of prostate cancer [AOR=15.5(5.18–46.77)] and awareness of anyone who has undergone prostate cancer screening [AOR= 6.8(1.95–23.64)] were identified independent predictors for prostate screening practice. Conclusion In this study, prostate cancer screening practice is low. Ever heard about prostate cancer, family history of prostate cancer and awareness of anyone who has undergone prostate cancer screening were independent predictors of prostate cancer screening practice. Intervention measures aiming to increase awareness about prostate cancer and prostate cancer screening should be done.
Evaluation of Anti-Hyperglycemia and Complications of Red and Black Thai Jasmine Rice Cultivars in Streptozotocin-Induced Diabetic Rats

The phytochemical constituents of red (RR) and black (BR) rice extracts were determined using high-pressure liquid chromatography (HPLC). Phytochemical screening revealed the presence of catechin, rutin, isoquercetin, cyanidin 3-glucoside, cyanidin 3-O-rutinoside, peonidin and quercetin. The anti-diabetic activities of RR and BR extracts on diabetic complications were examined in a streptozotocin-induced diabetic rat model. Rats (n = 80) were divided into 10 groups (n = 8 rats per group). Healthy and diabetic RR or BR-treated groups received 10, 50, or 200 mg of RR or BR per kg of body weight daily for 45 days. The results demonstrated significantly improved glucose control in rats administered RR or BR, while triglyceride and cholesterol levels were reduced in the diabetic groups. Moreover, RR or BR treatment led to decreased levels of malondialdehyde, aspartate aminotransferase, alanine aminotransferase, blood urea nitrogen, and creatinine. Further, glutathione concentration was significantly increased in both serum and liver tissue from RR- and BR-treated diabetic rats.
Significance of monocyte infiltration in patients with gastric cancer: A combined study based on single cell sequencing and TCGA

Background Gastric cancer is still one of the most lethal tumor diseases in the world. Despite some improvements, the prognosis of patients with gastric cancer is still not accurately predicted. Methods Based on single cell sequencing data, we conducted a detailed analysis of gastric cancer patients and normal tissues to determine the role of monocytes in the progression of gastric cancer. WCGA facilitated our search for Grade-related genes in TCGA. Then, according to the marker genes and cell differentiation genes of monocytes, we determined the cancer-promoting genes of monocytes. Based on LASSO regression, we established a prognostic model using TCGA database. The accuracy of the model was verified by PCA, ROC curve, survival analysis and prognostic analysis. Finally, we evaluated the significance of the model in clinical diagnosis and treatment by observing drug sensitivity, immune microenvironment and immune checkpoint expression in patients with different risk groups. Results Monocytes were poorly differentiated in tumor microenvironment. It mainly played a role in promoting cancer in two ways. One was to promote tumor progression indirectly by interacting with other tumor stromal cells. The other was to directly connect with tumor cells through the MIF and TNF pathway to play a tumor-promoting role. The former was more important in these two ways. A total of 292 monocyte tumor-promoting genes were obtained, and 12 genes were finally included in the construction of the prognosis model. A variety of validation methods showed that our model had an accurate prediction ability. Drug sensitivity analysis could provide guidance for clinical medication of patients. The results of immune microenvironment and immune checkpoint also indicated the reasons for poor prognosis of high-risk patients. Conclusion In conclusion, we provided a 12-gene risk score formula and nomogram for gastric cancer patients to assist clinical drug therapy and prognosis prediction. This model had good accuracy and clinical significance.
Loop gravity string

In this work we study canonical gravity in finite regions for which we introduce a generalisation of the Gibbons-Hawking boundary term including the Immirzi parameter. We study the canonical formulation on a spacelike hypersuface with a boundary sphere and show how the presence of this term leads to an unprecedented type of degrees of freedom coming from the restoration of the gauge and diffeomorphism symmetry at the boundary. In the presence of a loop quantum gravity state, these boundary degrees of freedom localize along a set of punctures on the boundary sphere. We demonstrate that these degrees of freedom are effectively described by auxiliary strings with a 3-dimensional internal target space attached to each puncture. We show that the string currents represent the local frame field, that the string angular momenta represent the area flux and that the string stress tensor represents the two dimensional metric on the boundary of the region of interest. Finally, we show that the commutators of these broken diffeomorphisms charges of quantum geometry satisfy at each puncture a Virasoro algebra with central charge $c=3$. This leads to a description of the boundary degrees of freedom in terms of a CFT structure with central charge proportional to the number of loop punctures. The boundary $SU(2)$ gauge symmetry is recovered via the action of the $U(1)^3$ Kac-Moody generators (associated with the string current) in a way that is the exact analog of an infinite dimensional generalization of the Schwinger spin-representation. We finally show that this symmetry is broken by the presence of background curvature.
Music Emotion Recognition Using K-Nearest Neighbors Algorithm

We listen to music every day and feel various emotions from different music, it brings us to the right mood and bonds us to other people and creates a shared experience. Depending on the situation and mental state different people may get affected diversely. However, we can extract common music emotional information even from people with diverse backgrounds and cultures. In this research paper, we develop a system that uses music to retrieve human emotions using the k-Nearest Neighbors (kNN) machine learning algorithm and compare the classifier with others to find the most accurate. How do we define music as happy or sad? Low-level features such as beat, pitch, rhythm, valence and tempo which made up the music, are used in the classification of music emotion. For example, high pitched music or music with a high frequency is usually associated with a happy and energizing state, and the opposite for slow music, which makes us feel sad and calm. The proposed system can be very useful in music-related systems and applications such as music retrieval, recommendation and understanding. Also, various disciplines such as musicology, physiology, psychology and cognitive sciences refer to music emotion recognition.
Radiation-enhanced diffusion of oxygen in silicon at room temperature

Rectangular bars of silicon containing oxygen impurity have been cut with the long axis parallel to a (111) crystal direction. The bars were stressed at 450 degrees C and measurements made of the resulting dichroism of the 9 mu m oxygen band following: (a) isothermal anneals at 350, 370 and 390 degrees C; and (b) successive doses of electron irradiation up to a total dose of 1.1*1019 cm-2 with the samples at room temperature. The authors' diffusion data agree with other current work and they observe radiation-enhanced diffusion corresponding to D=10-21 cm2 s-1 at 300K.
Biodefensive Based on Piper nigrum Essential Oil for Controlling of Anopheles aquasalis Larvae: Influence of Temperature (35 °C) and Preservatives

Considerable efforts have been spent on the development of biodefensives based on the encapsulation of essential oils for controlling of urban pests from their larval stage, especially as anopheline controlling agents. The larval source management of Anopheles aquasalis is important for malaria prevention. For this reason, this research proposes larvicidal biodefensives based on polymeric particles loaded with Piper nigrum essential oil, considering the influence of temperature (35 °C) and preservatives on the formulation stability. The biodefensive containing the preservative phenoxyethanol/methylisothiazolinone (PNE) resulted in 5 months of shelf-life storage with an Encapsulation Efficiency (EE%) of essential oil of 70%. The biodefensive PNE (containing 500 µg.mL−1 of encapsulated essential oil) presented a polydisperse particle size distribution, ranging from D10 = (127 ± 10) nm to D90 = (472 ± 78) nm and a particle mean size of (236 ± 34) nm. The AFM images revealed a spherical morphology with an external surface almost regular and smooth. The controlled release of the essential oil was evaluated up to 72 h according to the Korsmeyer-Peppas mathematical model, confirming the anomalous transport (n = 0.64 in pH = 3 and pH = 10, and n = 0.65 in pH = 7). The total larvae mortality on the in loco bioassays was almost reached (92%) after 24 h. However, according to the in vitro bioassays applying the in natura essential oil alone, the concentration of 454 μg. mL−1 resulted on the mortality of 70% of the larvae after 24 h. For this reason, the highest efficiency of the biodefensive PNE may be related to the encapsulation of essential oil, delivering the loaded particles more efficiently inside the larvae. From this perspective, the present study shows that a formulation based on P. nigrum essential oil may be taken into account in the integrated management of disease vector mosquitoes.
Observations of Shocked H2 and Entrained CO in Outflows from Luminous Young Stars

Narrowband, H2 (1–0) S(1) images of six luminous outflow regions are presented and discussed. In five of these regions, W75 N, S140 N, NGC 7538, AFGL 5180, and AFGL 490, H2 shock features associated with molecular (CO) outflows are observed. We have discovered faint, though extensive, bow shocks in the W75 N outflow that indicate a total flow length of at least 3 pc. The Herbig-Haro knots that make up the HH 251–254 outflow in S140 N are also observed in H2; in addition, knots in the counterflow are discovered. Copious H2 emission is also observed throughout the NGC 7538 region; filamentary structures to the northeast of the central cluster (IRS 1) are probably photodissociation fronts, although a jetlike structure is observed associated with the IRS 9 CO outflow. In AFGL 5180, a new, collimated H2 jet is discovered to the east of the central cluster, and numerous knots and filaments are observed around the cluster itself that could be associated with the known CO outflow there. Last, H2 line emission is observed southwest of AFGL 490; in particular, a bright peak is found associated with a warm molecular clump in the CO outflow. To complement these data, wide-field CO J = 2–1 maps have also been obtained toward three regions, W75 N, S140 N, and NGC 7538. When compared with the H2 images, these provide new insight into each outflow region. Indeed, analysis of these data suggests that although these flows are more massive and more energetic than their low-mass counterparts, they are nevertheless well collimated, bipolar, and possibly jet-driven. Molecular bow shocks, driven by an underlying, possibly variable stellar jet, may play a major role in this entrainment process.
Ordering of oxide precipitates in oxygen implanted silicon

An order network of oxide precipitates has been found in the monocrystalline superficial silicon layer of a silicon‐on‐insulator structure obtained by high‐dose oxygen implantation. The network consists of oxide precipitates 2 nm in size spaced about 5 nm apart. Electron diffraction patterns indicate that ordering occurs both parallel and perpendicular to the surface along the 〈100〉 directions of the silicon lattice. The precipitate network has a cubic symmetry.
A Sweet Warning: Mucin-Type O-Glycans in Cancer

Glycosylation is a common post-translational modification process of proteins. Mucin-type O-glycosylation is an O-glycosylation that starts from protein serine/threonine residues. Normally, it is involved in the normal development and differentiation of cells and tissues, abnormal glycosylation can lead to a variety of diseases, especially cancer. This paper reviews the normal biosynthesis of mucin-type O-glycans and their role in the maintenance of body health, followed by the mechanisms of abnormal mucin-type O-glycosylation in the development of diseases, especially tumors, including the effects of Tn, STn, T antigen, and different glycosyltransferases, with special emphasis on their role in the development of gastric cancer. Finally, tumor immunotherapy targeting mucin-type O-glycans was discussed.
Broadening of droplet size distributions from entrainment and mixing in a cumulus cloud

Quantitative predictions of the relationship between the droplet size‐distribution width and entrainment in warm cumulus have been elusive, largely because of the difficulty in representing the extent of the scales involved. A new modelling framework is presented as a first step toward quantitative predictions of droplet size distributions resulting from entrainment, consisting of a three‐dimensional cloud model coupled with a Lagrangian microphysical parcel model. The cloud model represents turbulent cloud dynamics but parametrizes microphysical processes such as condensation, and the parcel model complements this approach by performing explicit microphysical calculations within the kinematic and thermodynamic constraints established by the cloud model. The parcel model is run along trajectories all ending at the same point in the cloud, and the individual droplet size distributions are averaged together at this point to represent the turbulent mixing together of the droplets produced by these different parcel trajectories.