mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Experimental verification of the potential of superhydrophobic surfaces in reducing audible noise on HVAC overhead line conductors

Overhead line conductors can generate audible noise across a wide frequency spectrum as a result of elevated electric fields at the conductor surface. Such fields are enhanced by the presence of surface defects, insects, water drops and pollution. Within this paper, the impact of a superhydrophobic coating on the audible noise produced by an overhead line conductor is examined. Noise levels from a conductor coated with a superhydrophobic coating were compared to those from a bare conductor in a semi-anechoic chamber. The conductors were energised at voltages to provide surface electric fields ranging from 6 kV/cm to 21 kV/cm (rms). With a continuous water spray system depositing droplets on the conductor surface, the frequency domain sound pressure level, overall sound pressure levels and corona discharge magnitude were measured. It is demonstrated that the use of a superhydrophobic coating reduced audible noise levels and corona discharge magnitude, especially at electric fields above 14 kV/cm. The image analysis suggests that the water drop size distribution and the position of surface droplets on the conductor circumference play an important role in the magnitude of audible noise.
Babao Dan Alleviates 5-Fluorouracil-Induced Intestinal Damage via Wnt/β-Catenin Pathway

Objective: To evaluate the protective function of Babao Dan (BBD) on 5-flurouracil (5-FU)-induced intestinal mucositis (IM) and uncover the underlying mechanism. Methods: A total of 18 male mice were randomly divided into 3 groups by a random number table, including control, 5-FU and 5-FU combined BBD groups, 6 mice in each group. A single intraperitoneal injection of 5-FU (150 mg/kg) was performed in 5-FU and 5-FU combined BBD groups on day 0. Mice in 5-FU combined BBD group were gavaged with BBD (250 mg/kg) daily from day 1 to 6. Mice in the control group were gavaged with saline solution for 6 days. The body weight and diarrhea index of mice were recorded daily. On the 7th day, the blood from the heart of mice was collected to analyze the proportional changes of immunological cells, and the mice were subsequently euthanized by mild anesthesia with 2% pentobarbital sodium. Colorectal lengths and villus heights were measured. Intestinal-cellular apoptosis and proliferation were evaluated by Tunel assay and immunohistochemical staining of proliferating cell nuclear antigen, respectively. Immunohistochemistry and Western blot were performed to investigate the expressions of components in Wnt/β-catenin pathway (Wnt3, LRP5, β-catenin, c-Myc, LRG5 and CD44). Results: BBD obviously alleviated 5-FU-induced body weight loss and diarrhea, and reversed the decrease in the number of white blood cells, including monocyte, granulocyte and lymphocyte, and platelet ( <0.01). The shortening of colon caused by 5-FU was also reversed by BBD ( <0.01). Moreover, BBD inhibited apoptosis and promoted proliferation in jejunum tissues so as to reduce the intestinal mucosal damage and improve the integrity of villus and crypts. Mechanically, the expression levels of Wnt/β-catenin mediators such as Wnt3, LRP5, β-catenin were upregulated by BBD, activating the transcription of c-Myc, LRG5 and CD44 ( <0.01). Conclusions: BBD attenuates the adverse effects induced by 5-FU via Wnt/β-catenin pathway, suggesting it may act as a potential agent against chemotherapy-induced intestinal mucositis.
Detecting the meteoroid by measuring the electromagnetic waves excited by the collision between the hypervelocity meteoroid and spacecraft

The electromagnetic pulse excited by the collision between a hypervelocity meteoroid and a spacecraft is studied both numerically and theoretically. It is found that there are two kinds of electromagnetic pulse. The high-frequency electromagnetic pulse may be excited by the sum of all the electric dipoles. Each electron can be considered as an electric dipole. The low-frequency electromagnetic pulse is produced by the Langmuir oscillation of electrons. The energy flux density and the duration time of the excited low-frequency electromagnetic pulse by the meteoroid are also studied in the present paper. It is shown that the energy flux density increases as either the impact speed or the mass of the meteoroid increases. It is also shown that the duration time decreases as both the impact speed and the mass of the meteoroid increase. By measuring the strength and the duration time of the electromagnetic pulse excited by the collision between the hypervelocity meteoroid and spacecraft, we can estimate the speed and the mass of the hypervelocity meteoroid, which will be helpful in space flight and space exploration.
A Prediction Framework for Turning Period Structures in COVID-19 Epidemic and Its Application to Practical Emergency Risk Management

The aim of this paper is first to establish a general prediction framework for turning (period) term structures in COVID-19 epidemic related to the implementation of emergency risk management in the practice,which allows us to conduct the reliable estimation for the peak period based on the new concept of "Turning Period" (instead of the traditional one with the focus on "Turning Point") for infectious disease spreading such as the COVID-19 epidemic appeared early in year 2020.By a fact that emergency risk management is necessarily to implement emergency plans quickly,the identification of the Turning Period is a key element to emergency planning as it needs to provide a time line for effective actions and solutions to combat a pandemic by reducing as much unexpected risk as soon as possible.As applications,the paper also discusses how this "Turning Term (Period) Structure" is used to predict the peak phase for COVID-19 epidemic in Wuhan from January/2020 to early March/2020.Our study shows that the predication framework established in this paper is capable to provide the trajectory of COVID-19 cases dynamics for a few weeks starting from Feb.10/2020 to early March/2020,from which we successfully predicted that the turning period of COVID-19 epidemic in Wuhan would arrive within one week after Feb.14/2020,as verified by the true observation in the practice.The method established in this paper for the prediction of "Turning Term (Period) Structures" by applying COVID-19 epidemic in China happened early 2020 seems timely and accurate,providing adequate time for the government,hospitals,essential industry sectors and services to meet peak demands and to prepare aftermath planning,and associated criteria for the Turning Term Structure of COVID-19 epidemic is expected to be a useful and powerful tool to implement the so-called "dynamic zero-COVID-19 policy" ongoing basis in the practice.
Research on arc root stagnation when small current is interrupted in self-excited circuit breaker

The self-excited DC air circuit breaker(SE-DCCB) has been widely used in urban rail transit due to its excellent stability. It can realize forward and reverse interruption, but has difficulty interrupting small currents due to the phenomenon of arc root sticking at the entrance of the arc chamber in the splitting process, which is known as arc root stagnation. A coupling model of the self-excited magnetic field and magnetohydrodynamics is established for the SE-DCCB with the traditional structure. The magnetic field, temperature and airflow distribution in the arc chamber are investigated with an interrupting current of 150 A. The simulation results show that the direction and magnitude of the magnetic blowout force are the dominant factors in the arc root stagnation. The local high temperature of the arc chamber due to arc root stagnation increases the obstruction effect of the airflow vortex on the arc root movement, which significantly increases the arc duration time of small current interruption. Based on the research, the structure of the magnetic conductance plate of the actual product is improved, which can improve the direction and magnitude of the magnetic blowout force at the arc root so as to restrain the development of the airflow vortex effectively and solve the problem of arc root stagnation when the small current is interrupted. The simulation results show that the circuit breaker with improved structure has a better performance for a small current interruption range from 100 A to 350 A.
Prior-guided GAN-based interactive airplane engine damage image augmentation method

Deep learning-based methods have achieved remarkable success in object detection, but this success requires the availability of a large number of training images. Collecting sufficient training images is difficult in detecting damages of airplane engines. Directly augmenting images by rotation, flipping, and random cropping cannot further improve the generalization ability of existing deep models. We propose an interactive augmentation method for airplane engine damage images using a prior-guided GAN to augment training images. Our method can generate many types of damages on arbitrary image regions according to the strokes of users. The proposed model consists of a prior network and a GAN. The Prior network generates a shape prior vector, which is used to encode the information of user strokes. The GAN takes the shape prior vector and random noise vectors to generate candidate damages. Final damages are pasted on the given positions of background images with an improved Poisson fusion. We compare the proposed method with traditional data augmentation methods by training airplane engine damage detectors with state-ofthe- art object detectors, namely, Mask R-CNN, SSD, and YOLO v5. Experimental results show that training with images generated by our proposed data augmentation method achieves a better detection performance than that by traditional data augmentation methods.
Advances and challenges on springback control for creep age forming of aluminum alloy

Creep age forming (CAF) is an advanced forming technology that combines creep deformation and age hardening processes. When compared with the conventional forming technologies including roll bending and shot-peen forming, CAF has many advantages of low residual stress, excellent dimensional stability, good service performance and short production cycle. It is an optimal technique for precise manufacturing for shape and properties of large-scale complicated thinwalled components of light-weight and high strength aluminum alloys in the aviation and aerospace industries. Nevertheless, CAF has an inevitable disadvantage that a large amount of springback occurs after unloading, which brings a challenge on the accurate shape forming and property tailoring of components. Therefore, how to achieve accurate prediction and control of springback has always been a bottleneck hindering the development of CAF to more industrial applications. After the factors of affecting springback and measures of reducing springback are summarized from the internal and external aspects, constitutive models for predicting springback and springback compensation methods for CAF of aluminum alloy panel components are reviewed. Then, a review of research progresses on tool design for CAF is presented. Finally, in view of the key issue that it is difficult to predict and control the shape and properties of components during CAF, the technical challenges are discussed and future development trends of CAF are prospected.
Entire onion source-derived redox porous carbon electrodes towards efficient quasi-solid-state solar charged hybrid supercapacitor

Biomass-derived electrodes inherently containing redox-active species have gained extensive attention recently due to their availability, eco-friendliness, sustainability, and low cost. We report novel binder-free faradic surface redox onion-derived carbon positive electrode with nano regime particles by hydrothermal synthesis and Na~+ and Cl – ions diffused porous carbon negative electrode via a carbonization method. Energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy confirmed the presence of oxidized sulfur and (N-6) pyridinic N-based redox groups inherently present in the as-prepared compounds. The electrochemical analysis of the positive electrode revealed its faradic redox type of energy storage mechanism with an excellent specific capacitance of 1805 F g~(–1) at the current density of 3 A g~(–1) as well as appreciable long-term cycling stability (76.8% retention after 10 0 0 0 charge-discharge cycles). Meanwhile, the negative electrode exhibited a maximum specific capacitance of 373 F g~(–1) at 1 A g~(–1) with outstanding long-term cycling stability (100.7% retention after 10 0 0 0 cycles). The fabricated polyvinyl alcohol-potassium hydroxide gel electrolyte-based quasi-solid-state hybrid supercapacitor (QHSC) delivered excellent energy density and power density of 19.94 Wh kg~(–1) and 374.99 W kg~(–1), respectively with an ultralong cyclic life (102.3% retention) over 10 0 0 0 cycles. Furthermore, the QHSC was connected to a solar panel to store renewable energy. Solar charged QHSC effectively powered a speedometer, enlightening its potential application in advanced sustainable energy storage systems.
埃德海姆-切斯特病一例

综上,由于ECD的罕见性及多系统受累的特点,常使诊断具有挑战性,这便需要多学科协作以明确诊断。对ECD中骨骼、肺、心血管系统、肾脏和腹膜后等特征性影像学及ECD病理学特点有充分认知,有助于尽早诊断ECD。根据ECD患者的病变范围及严重程度制定个体化治疗方案,尽可能完善基因学检测,明确基因突变类型,有助于治疗方案的优化,改善患者预后。
超声引导下神经水分离治疗腓总神经卡压综合征1例

腓总神经卡压综合征是指腓总神经及其主要分支受压引起的小腿外侧及足背感觉障碍,伸、伸趾、足背伸、足内外翻障碍,腓总神经完全性损伤的病人足下垂行走时呈跨越步态。腓总神经卡压在临床上多见于腓骨头、颈处骨折,下肢不良姿势,石膏、夹板压迫及体位性神经损伤、腘窝外侧软组织损伤等。腓总神经卡压的治疗关键是对因治疗,尽早解除神经压迫。而传统的非手术治疗如口服糖皮质激素、改善循环、营养神经及热敷、理疗等,并不能直接解除对神经的压迫,且疗效慢。手术行腓总神经探查松解治疗则创伤大,花费高,对病人的局部可能会造成二次损伤。因此,近年来针对腓总神经卡压的治疗,需要寻找一种创伤小、疗效显著、且操作简便的技术方法。
PARP抑制剂在铂耐药上皮性卵巢癌治疗中的应用

PARP抑制剂在上皮性卵巢癌的一线维持治疗中展示出了良好的临床效果,但在铂耐药上皮性卵巢癌的治疗中尚无较多临床数据提供参考。本文对PARP抑制剂在铂耐药上皮性卵巢癌治疗中的应用做一综述,以期提供临床参考。
产前超声诊断胎儿左侧腹膜后成熟性畸胎瘤1例

成熟性畸胎瘤由三个生殖层分化良好的结构组成,恶变率约10%;胎儿期好发于骶尾部,原发于腹膜后者罕见。胎儿腹膜后成熟性畸胎瘤超声主要表现为边界较清的囊实性包块,其内多无明显血流,以斑片状钙化为特征性表现;出生后以高频探头可更细致地观察其内部结构。本例产前超声发现胎儿左上腹囊实性肿块时,受胎儿体位及图像分辨率影响,未能识别钙化而误为肾上腺出血,随后复查发现肿块内部回声无明显变化,考虑占位性病变;出生后以高频探头扫查发现明显钙化斑,诊断为畸胎瘤。鉴别诊断:①胎儿肾上腺出血,发病率较高,病灶内部回声随时间而变化;②未成熟畸胎瘤,生长较快,边界不清,内部血流信号较丰富;③腹部神经母细胞瘤,多呈实性,内见多发细小点状钙化,部分包绕大血管;④腹膜后寄生胎,巨大肿块内可见胎儿脊柱及肢体样结构。
近亲婚育子代基因突变伴不育症1例报道

本文报道了1例男性少弱畸形精子症不育患者,其父母系姨表兄妹,近亲结婚生育该患者。该患者罕见地同时伴有PLEKHG2基因致病突变和22q11.2微缺失综合征(22q11.2DS)。近亲结婚携带相同等位基因的致病突变概率极高,子代极易形成等位基因突变的纯合子从而致病,建议已经近亲结婚生育的子代进行遗传学咨询。
"三位一体"法针灸治疗变应性鼻炎35例

综上,"三位一体"法使3种不同的疗法充分发挥协同作用,提高AR疗效,减少病情复发,同时保证了近期和远期疗效。"三位一体"法针灸治疗AR操作方便,避免了药物及免疫制剂等疗法的不良反应,显示了针灸治疗的优势。
Universal Fermi velocity in highly compressed hydride superconductors

The Fermi velocity v_F is one of the primary characteristics of any conductor, including any superconductor. For conductors at ambient pressure, several experimental techniques have been developed to measure v_F, and, for instance, Zhou et al. [Nature 423, 398(2003)] reported that high-T_c cuprates exhibited a universal nodal Fermi velocity v_(F,univ) =(2.7 ± 0.5) × 10~5 m/s. However, there have been no measurements of v_F in highly compressed near-room-temperature superconductors(NRTS), owing to experimental challenges. Here, to answer the question of the existence of a universal Fermi velocity in NRTS materials, we analyze the full inventory of data on the ground-state upper critical field B_(c2)(0) for these materials and find that this class of superconductors exhibits a universal Fermi velocity v_(F,univ) =(1/1.3) × [2Δ(0)/k_BT_c] × 10~5 m/s, where Δ(0) is the ground-state amplitude of the energy gap. The ratio 2Δ(0)/k_BT_c varies within a narrow range 3.2 ≤ 2Δ(0)/k_BT_c ≤ 5, and so v_(F,univ) in NRTS materials lies in the range 2.5 × 10~5 m/s ≤ v_(F,univ) ≤ 3.8 × 10~5 m/s, which is similar to the range of values found for the high-T_c cuprate counterparts of these materials.
Supramolecular Polymer Intertwined Free-Standing Bifunctional Membrane Catalysts for All-Temperature Flexible Zn-Air Batteries

Rational construction of flexible free-standing electrocatalysts featuring long-lasting durability, high efficiency, and wide temperature tolerance under harsh practical operations are fundamentally significant for commercial zinc-air batteries. Here, 3D flexible free-standing bifunctional membrane electrocatalysts composed of covalently cross-linked supramolecular polymer networks with nitrogen-deficient carbon nitride nanotubes are fabricated (referred to as PEMAC@NDCN) by a facile self-templated approach. PEMAC@NDCN demonstrates the lowest reversible oxygen bifunctional activity of 0.61 V with exceptional long-lasting durability, which outperforms those of commercial Pt/C and RuO_2. Theoretical calculations and control experiments reveal the boosted electron transfer, electrolyte mass/ion transports, and abundant active surface site preferences. Moreover, the constructed alkaline Zn-air battery with PEMAC@NDCN air-cathode reveals superb power density, capacity, and discharge-charge cycling stability (over 2160 cycles) compared to the reference Pt/C + RuO_2. Solid-state Zn-air batteries enable a high power density of 211 mW cm~(–2), energy density of 1056 Wh kg~(–1), stable charge-discharge cycling of 2580 cycles for 50 mA cm~(–2), and wide temperature tolerance from–40 to 70 °C with retention of 86% capacity compared to room-temperature counterparts, illustrating prospects over harsh operations.
Biodegradable, Super-Strong, and Conductive Cellulose Macrofibers for Fabric-Based Triboelectric Nanogenerator

Electronic fibers used to fabricate wearable triboelectric nanogenerator (TENG) for harvesting human mechanical energy have been extensively explored. However, little attention is paid to their mutual advantages of environmental friendliness, mechanical properties, and stability. Here, we report a super-strong, biodegradable, and washable cellulose-based conductive macrofibers, which is prepared by wet-stretching and wet-twisting bacterial cellulose hydrogel incorporated with carbon nanotubes and polypyrrole. The cellulose-based conductive macrofibers possess high tensile strength of 449 MPa (able to lift 2 kg weights), good electrical conductivity (~ 5.32 S cm~(–1)), and excellent stability (Tensile strength and conductivity only decrease by 6.7% and 8.1% after immersing in water for 1 day). The degradation experiment demonstrates macrofibers can be degraded within 108 h in the cellulase solution. The designed fabric-based TENG from the cellulose-base conductive macrofibers shows a maximum open-circuit voltage of 170 V, short-circuit current of 0.8 μA, and output power at 352 μW, which is capable of powering the commercial electronics by charging the capacitors. More importantly, the fabric-based TENGs can be attached to the human body and work as self-powered sensors to effectively monitor human motions. This study suggests the potential of biodegradable, super-strong, and washable conductive cellulose-based fiber for designing eco-friendly fabric-based TENG for energy harvesting and biomechanical monitoring.
Recent Progress of Electrode Materials for Flexible Perovskite Solar Cells

Flexible perovskite solar cells (FPSCs) have attracted enormous interest in wearable and portable electronics due to their high power-per-weight and low cost. Flexible and efficient perovskite solar cells require the development of flexible electrodes compatible with the optoelectronic properties of perovskite. In this review, the recent progress of flexible electrodes used in FPSCs is comprehensively reviewed. The major features of flexible transparent electrodes, including transparent conductive oxides, conductive polymer, carbon nanomaterials and nanostructured metallic materials are systematically compared. And the corresponding modification strategies and device performance are summarized. Moreover, flexible opaque electrodes including metal films, opaque carbon materials and metal foils are critically assessed. Finally, the development directions and difficulties of flexible electrodes are given.
A Better Zn-Ion Storage Device: Recent Progress for Zn-Ion Hybrid Supercapacitors

As a new generation of Zn-ion storage systems, Zn-ion hybrid supercapacitors (ZHSCs) garner tremendous interests recently from researchers due to the perfect integration of batteries and supercapacitors. ZHSCs have excellent integration of high energy density and power density, which seamlessly bridges the gap between batteries and supercapacitors, becoming one of the most viable future options for large-scale equipment and portable electronic devices. However, the currently reported two configurations of ZHSCs and corresponding energy storage mechanisms still lack systematic analyses. Herein, this review will be prudently organized from the perspectives of design strategies, electrode configurations, energy storage mechanisms, recent advances in electrode materials, electrolyte behaviors and further applications (micro or flexible devices) of ZHSCs. The synthesis processes and electrochemical properties of well-designed Zn anodes, capacitor-type electrodes and novel Zn-ion battery-type cathodes are comprehensively discussed. Finally, a brief summary and outlook for the further development of ZHSCs are presented as well. This review will provide timely access for researchers to the recent works regarding ZHSCs.
Porous and Ultra-Flexible Crosslinked MXene/Polyimide Composites for Multifunctional Electromagnetic Interference Shielding

Lightweight, ultra-flexible, and robust crosslinked transition metal carbide (Ti_3C_2 MXene) coated polyimide (PI) (C-MXene@PI) porous composites are manufactured via a scalable dip-coating followed by chemical crosslinking approach. In addition to the hydrophobicity, anti-oxidation and extreme-temperature stability, efficient utilization of the intrinsic conductivity of MXene, the interfacial polarization between MXene and PI, and the micrometer-sized pores of the composite foams are achieved. Consequently, the composites show a satisfactory X-band electromagnetic interference (EMI) shielding effectiveness of 22.5 to 62.5 dB at a density of 28.7 to 48.7 mg cm~(- 3), leading to an excellent surface-specific SE of 21,317 dB cm~2 g~(-1). Moreover, the composite foams exhibit excellent electrothermal performance as flexible heaters in terms of a prominent, rapid reproducible, and stable electrothermal effect at low voltages and superior heat performance and more uniform heat distribution compared with the commercial heaters composed of alloy plates. Furthermore, the composite foams are well attached on a human body to check their electromechanical sensing performance, demonstrating the sensitive and reliable detection of human motions as wearable sensors. The excellent EMI shielding performance and multifunctionalities, along with the facile and easy-to-scalable manufacturing techniques, imply promising perspectives of the porous C-MXene@PI composites in next-generation flexible electronics, aerospace, and smart devices.
Eu~(3+)/Tb~(3+)-doped whitlockite nanocrystals: Controllable synthesis, cell imaging, and the degradation process in the bone reconstruction

Whitlockite (WH, Ca_(18)Mg_2(HPO_4)_2(PO_4)_(12)) is an important inorganic phase in human bones and has positive significance for participating in the bone reconstruction process. In this paper, we report different doping strategies to prepare WH and WH-Ln (Eu/Tb) nanocrystals, and have successfully synthesized WH-Ln (Eu/Tb) nanoparticles (NPs) with bright red or green fluorescence based on ions exchange doping by two-step hydrothermal reaction. WH-5%Ln (Eu/Tb) NPs with the best fluorescence properties were successfully applied to live cell imaging, and WH-5%Eu NPs were implanted into the bone defect site in rabbit femoral condyles to visually observe its degradation process. The related results would help us understand WH nanocrystals and further expand their potential applications in tissue engineering and related fields.