mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
The Aviation Technology Two-Sided Matching with the Expected Time Based on the Probabilistic Linguistic Preference Relations

The two-sided matching has been widely applied to the decision-making problems in the field of management. With the limited working experience, the two-sided agents usually cannot provide the preference order directly for the opposite agent, but rather to provide the preference relations in the form of linguistic information. The preference relations based on probabilistic linguistic term sets(PLTSs) not only allow agents to provide the evaluation with multiple linguistic terms, but also present the different preference degrees for linguistic terms. Considering the diversities of the agents, they may provide their preference relations in the form of the probabilistic linguistic preference relation(PLPR) or the probabilistic linguistic multiplicative preference relation(PLMPR). For two-sided matching with the expected time, we first provide the concept of the time satisfaction degree(TSD). Then, we transform the preference relations in different forms into the unified preference relations(u-PRs). The consistency index to measure the consistency of u-PRs is introduced. Besides, the acceptable consis tent u-PRs are constructed, and an algorithm is proposed to modify the unacceptable consistent u-PRs. Furthermore, we present the whole two-sided matching decisionmaking process with the acceptable consistent u-PRs. Finally, a case about aviation technology suppliers and demanders matching is presented to exhibit the rationality and practicality of the proposed method. Some analyses and discussions are provided to further demonstrate the feasibility and effectiveness of the proposed method.
Quantum key distribution based on single-particle and EPR entanglement

The theoretical security of the quantum secure communication protocols can be proved with the law of quantum mechanics, when the classical communication protocols' security can only depend on the computational complexity [1, 2]. Based on the quantum BB84 protocol [3] and the quantum MEQKD protocol [4], we present a QKD(quantum key distribution) protocol based on a singleparticle and an EPR(Einstein-Podolsky-Rosen) entanglement pair, which is called the quantum TEQKD protocol. Compared with MEQKD, TEQKD sends one single-particle and one EPR Entanglement pair at one time. What's more, the security of the TEQKD protocol in individual Man-in-the-Middle attacks is also analyzed, an eavesdropping behavior will cause at least a bit error rate of 62.5%. In order to achieve the same detection effect, the TEQKD needs 22 quantum key bits as the detection sequence, while the MEQKD needs 33 qubits [4]. Similar to MEQKD, TEQKD does not need to store the qubits state. In this study, we also analyze the problems about photon loss and PNS attacks, we also try to give an idea to solve the problem with continuous variable generalization and decoy state technique.
A photomemory by selective-assembling hybrid porphyrin-silicon nanowire field-effect transistor

Recently, the integration of photosensitive material and electronic nanodevice has been the center of attention with Internet of things(IoT) technology development [1-3]. The immobilization of such photoactive molecules on the semiconductor surface was necessarily adopted to employ their photoelectric characteristics which can be observed in the solution. Porphyrin-based hybrid transistors have emerged as promising candidates for photonic sensing application due to the confirmed photo-induced charge transfer(PCT) behavior between porphyrin molecules and electronic platforms [4]. Silicon nanowire is also considered as an ideal configuration to detect stimulus due to large suface-tovolume ratio and excellent transport property [5]. However, most of existing porphyrin/Si nanowire transistor showed transient light response only when the illumination occurred [6—8], and yet an entire photoelectric microsystem is constructed by not only photonic sensor but also other memory counterpart. In this case, an extra number of memory devices were necessary to keep the transformed electrical information recorded, which makes the whole system redundant and complex.
Event-triggered neural network control of autonomous surface vehicles over wireless network

In this paper, an event-triggered neural network control method is proposed for autonomous surface vehicles subject to uncertainties and input constraints over wireless network. An event-triggered mechanism with three logic rules is employed to determine the wireless data transmission of states and control inputs. An event-driven neural network is applied to approximate the uncertainties using aperiodic sampled states. In addition, a predictor is employed to update the weights of neural network. An event-based bounded kinetic control law is applied to address the actuator constraints. The advantage of the proposed event-triggered neural network control approach is that the network traffic can be reduced while guaranteeing system stability and speed following performance. The closed-loop control system is proved to be input-tostate stable via cascade theory. The Zeno behavior can be avoided via the proposed event-triggered neural network control approach. A simulation example is provided to demonstrate the effectiveness of the proposed event-triggered neural network control approach for autonomous surface vehicles.
Detail description of Lithophyllum okamurae (Lithophylloideae, Corallinales), a widely distributed crustose coralline alga in marine ecosystems

Lithophyllum okamurae is one of the important encrusting coralline algae, which plays important roles as primary producer, carbonate sediment builder, and habitat provider in the marine ecosystems. In this study, L. okamurae was collected from tropical coast of Sanya, and firstly described based on both detailed morph-anatomical characteristics and molecular studies of typic DNA sequences. The structure of the thalli of L. okamurae was pseudoparenchymatous construction with radially organized dimerous organizations in the crustose portion. The pseudoparenchymatous construction were composed of three parts, including 1 to 3 layers of epithelia cells which had flatten to round outermost walls, one layer of square or rectangular cells of the hypothallia and multiple layers of square or elongated rectangular peripheral cells. Palisade cells were observed, and the cells of the contiguous vegetative filaments were connected by secondary pit-connections with cell fusions absent. The carposporangial conceptacles, the spermatangial conceptacles, the bisporangial conceptacles and the tetrasporangial conceptacles were observed, and all these four kinds of conceptacles were uniporate. The spermatangial conceptacles were slightly convex and buried at shallow depths in the thalli tissues, and the carposporangial conceptacles and asexual conceptacles were protruding and conical. Phylogenetic studies based on DNA barcoding markers of 18S rDNA, COI, rbcL and psbA revealed that L. okamurae clustered with the closest relation of L. atlanticum, and formed a distinct branch. Based on the comparative anatomical features and the molecular data, the detailed description of the valid species of L. okamurae was firstly given in this study to provide theoretical basis for algae resources utilization and conservation in marine ecosystems.
基于超宽带隙聚合物给体的有机太阳能电池效率超过16%

有机太阳能电池具有质轻价廉、柔韧性好、易于制备大面积器件等独特的优势,备受国内外科学界和产业界的关注,成为新能源领域的研究热点之一.有机太阳能电池的关键材料是聚合物或小分子给体材料和富勒烯或非富勒烯受体材料.近年来,得益于非富勒烯受体材料的开发,有机太阳能电池发展迅速,其光电转换效率已经突破17%.在非富勒烯受体材料领域,中国的科学家做出了原创性和引领性的贡献,不断刷新有机太阳能电池效率的世界纪录,为推动有机太阳能电池领域的发展做出了重要的贡献.目前,高效率的非富勒烯受体材料绝大部分是基于低带隙的共轭稠环体系,如北京大学占肖卫课题组发明的明星分子ITIC(3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophene)、中南大学邹应萍课题组设计合成的Y6等.为了实现对太阳光谱的充分利用,进一步提升有机太阳能电池的光电转换效率,迫切需要发展与非富勒烯受体材料吸收光谱互补的高性能的宽带隙聚合物给体材料.宽带隙聚合物给体材料,尤其是带隙超过2.07 eV的超宽带隙聚合物给体材料,在叠层或多元有机太阳能电池中起着非常重要的作用.然而,目前宽带隙聚合物给体材料的种类相对较少,其中具有高效率的更是屈指可数,限制了该领域的发展.
Blind position detection for large field-of-view scattering imaging

Prior-free imaging beyond the memory effect (ME) is critical to seeing through the scattering media. However, methods proposed to exceed the ME range have suffered from the availability of prior information of imaging targets. Here, we propose a blind target position detection for large field-of-view scattering imaging. Only exploiting two captured multi-target near-field speckles at different imaging distances, the unknown number and locations of the isolated imaging targets are blindly reconstructed via the proposed scaling-vector-based detection. Autocorrelations can be calculated for the speckle regions centered by the derived positions via low-cross-talk region allocation strategy. Working with the modified phase retrieval algorithm, the complete scene of the multiple targets exceeding the ME range can be reconstructed without any prior information. The effectiveness of the proposed algorithm is verified by testing on a real scattering imaging system.
High-speed and high-efficiency three-dimensional shape measurement based on Gray-coded light

Fringe projection profilometry has been increasingly sought and applied in dynamic three-dimensional (3D) shape measurement. In this work, a robust, high-efficiency 3D measurement based on Gray-coded light is proposed. Unlike the traditional method, a tripartite phase unwrapping method is proposed to avoid the jump errors on the boundary of code words, which are mainly caused by the defocusing of the projector and the motion of the tested object. Subsequently, the time-overlapping coding strategy is presented to greatly increase the coding efficiency, decreasing the projected number in each group from seven (i.e., 3 + 4) to four (i.e., 3+1) for one restored 3D frame. The combination of two proposed techniques allows the reconstruction of a pixel-wise and unambiguous 3D geometry of dynamic scenes with strong noise using every four projected patterns. To the best of our knowledge, the presented techniques for the first time preserve the high anti-noise ability of a method based on the Gray code while overcoming the drawbacks of jump errors and low coding efficiency. Experiments have demonstrated that the proposed method can achieve robust, high-efficiency 3D shape measurement of high-speed dynamic scenes even polluted by strong noise.
Red-emitting YAG:Ce,Mn transparent ceramics for warm WLEDs application

A series of YAG:Ce,Mn transparent ceramics were prepared via a solid-state reaction-vacuum sintering method. The effects of various Mn~(2+)–Si~(4+) pair doping levels on the structure, transmittance, and luminescence properties were systematically investigated. These transparent ceramics have average grain sizes of 10–16 μm, clean grain boundaries, and excellent transmittance up to 83.4% at 800 nm. Under the excitation of 460 nm, three obvious emission peaks appear at 533, 590, and 745 nm, which can be assigned to the transition 5d→4f of Ce~(3+) and ~4T_1→~6A_1 of Mn~(2+). Thus, the Mn~(2+)–Si~(4+) pairs can effectively modulate the emission spectrum by compensating broad orange-red and red spectrum component to yield high quality warm white light. After the optimized YAG:Ce,Mn transparent ceramic packaged with blue light-emitting diode (LED) chips, correlated color temperature (CCT) as low as 3723 K and luminous efficiency (LE) as high as 96.54 lm/W were achieved, implying a very promising candidate for application in white light-emitting diodes (WLEDs) industry.
Characterization of airborne wear debris produced by brake pads pressed against HVOF-coated discs

A significant fraction of the non-exhaust particulate matter emissions from vehicular traffic comprises fine particles from the wear debris of brake pads and discs.Recent studies have shown that these emissions can be consistently reduced by using wear resistant disc coatings.This study thoroughly analyses the debris produced by a low-met brake pad,which is dyno-bench tested against both cast iron and WC-CoCr-coated brake discs.To achieve this,particles in the size range of 2.5 µm to 30 nm were collected and characterized.The results showed a consistent reduction in the particle emission as well as in the concentration of iron oxides,which are mainly released from the disc tribo-oxidation in the coated disc.Furthermore,a few tungsten carbides,released from the coating,were also observed in the wear fragments.The results of this study can be useful for improving the protective coating and consequently help in reducing particulate matter emission further.
Electrical bearing failures in electric vehicles

In modern electric equipment, especially electric vehicles, inverter control systems can lead to complex shaft voltages and bearing currents. Within an electric motor, many parts have electrical failure problems, and among which bearings are the most sensitive and vulnerable components. In recent years, electrical failures in bearing have been frequently reported in electric vehicles, and the electrical failure of bearings has become a key issue that restricts the lifetime of all-electric motor-based power systems in a broader sense. The purpose of this review is to provide a comprehensive overview of the bearing premature failure in the mechanical systems exposed in an electrical environment represented by electric vehicles. The electrical environments in which bearing works including the different components and the origins of the shaft voltages and bearing currents, as well as the typical modes of electrical bearing failure including various topographical damages and lubrication failures, have been discussed. The fundamental influence mechanisms of voltage/current on the friction/lubrication properties have been summarized and analyzed, and corresponding countermeasures have been proposed. Finally, a brief introduction to the key technical flaws in the current researches will be made and the future outlook of frontier directions will be discussed.
密码应用安全专刊序言(中英文)

密码学是网络空间安全的基础理论,能够为各种信息系统提供数据机密性、数据完整性、身份鉴别、非否认等安全服务.然而,在实际的密码学应用中,却面临密钥泄露、密钥易被猜测、随机数可预测、虚假数字证书、弱算法使用、密码协议实现漏洞等诸多问题,导致理论上安全(即在一定假设下可证明安全)的密码技术和方法并不能实现预期的安全效果.特别地,随着信息化进程的不断推进,越来越多的敏感服务开始上线,密码系统能否在现实环境中提供有效的安全服务是一个亟待关注的问题.
Ultrafast and broadband photodetectors based on a perovskite/organic bulk heterojunction for large-dynamic-range imaging

Organic-inorganic hybrid perovskite (OIHP) photodetectors that simultaneously achieve an ultrafast response and high sensitivity in the near-infrared (NIR) region are prerequisites for expanding current monitoring,imaging,and optical communication capbilities.Herein,we demonstrate photodetectors constructed by OIHP and an organic bulk heterojunction (BHJ) consisting of a low-bandgap nonfullerene and polymer,which achieve broadband response spectra up to 1 μm with a highest external quantum efficiency of approximately 54% at 850 nm,an ultrafast response speed of 5.6 ns and a linear dynamic range (LDR) of 191 dB.High sensitivity,ultrafast speed and a large LDR are preeminent prerequisites for the practical application of photodetectors.Encouragingly,due to the high-dynamicrange imaging capacity,high-quality visible-NIR actual imaging is achieved by employing the OIHP photodetectors.We believe that state-of-the-art OIHP photodetectors can accelerate the translation of solution-processed photodetector applications from the laboratory to the imaging market.
Spin-preserving chiral photonic crystal mirror

Chirality refers to a geometric phenomenon in which objects are not superimposable on their mirror image. Structures made of nanoscale chiral elements can exhibit chiroptical effects, such as dichroism for left- and right-handed circularly polarized light, which makes these structures highly suitable for applications ranging from quantum information processing and quantum optics to circular dichroism spectroscopy and molecular recognition. At the same time, strong chiroptical effects have been challenging to achieve even in synthetic optical media, and chiroptical effects for light with normal incidence have been speculated to be prohibited in thin, lossless quasi-two-dimensional structures. Here, we report an experimental realization of a giant chiroptical effect in a thin monolithic photonic crystal mirror. Unlike conventional mirrors, our mirror selectively reflects only one spin state of light while preserving its handedness, with a near-unity level of circular dichroism. The operational principle of the photonic crystal mirror relies on guided-mode resonance(GMR) with a simultaneous excitation of leaky transverse electric(TE-like) and transverse magnetic(TM-like) Bloch modes in the photonic crystal slab. Such modes are not reliant on the suppression of radiative losses through long-range destructive interference, and even small areas of the photonic crystal exhibit robust circular dichroism. Despite its simplicity, the mirror strongly outperforms earlier reported structures and, contrary to a prevailing notion, demonstrates that near-unity reflectivity contrast for opposite helicities is achievable in a quasi-two-dimensional structure.
Optothermal dynamics in whispering-gallery microresonators

Optical whispering-gallery-mode microresonators with ultrahigh quality factors and small mode volumes have played an important role in modern physics. They have been demonstrated as a diverse platform for a wide range of applications in photonics, such as nonlinear optics, optomechanics, quantum optics, and information processing. Thermal behaviors induced by power build-up in the resonators or environmental perturbations are ubiquitous in high-quality-factor whispering-gallery-mode resonators and have played an important role in their operation for various applications. In this review, we discuss the mechanisms of laser-field-induced thermal nonlinear effects, including thermal bistability and thermal oscillation. With the help of the thermal bistability effect, optothermal spectroscopy and optical nonreciprocity have been demonstrated. By tuning the temperature of the environment, the resonant mode frequency will shift, which can also be used for thermal sensing/tuning applications. The thermal locking technique and thermal imaging mechanisms are discussed briefly. Finally, we review some techniques employed to achieve thermal stability in a high-quality-factor resonator system.
An ultra-sensitive and easy-to-use assay for sensing human UGT1A1 activities in biological systems

The human UDP-glucuronosyltransferase 1A1 (UGT1A1),one of the most essential conjugative enzymes,is responsible for the metabolism and detoxification of bilirubin and other endogenous substances,as well as many different xenobiotic compounds.Deciphering UGT1A1 relevance to human diseases and characterizing the effects of small molecules on the activities of UGT1A1 requires reliable tools for probing the function of this key enzyme in complex biological matrices.Herein,an easy-to-use assay for highly-selective and sensitive monitoring of UGT1A1 activities in various biological matrices,using liquid chromatography with fluorescence detection (LC-FD),has been developed and validated.The newly developed LC-FD based assay has been confirmed in terms of sensitivity,specificity,precision,quantitative linear range and stability.One of its main advantages is lowering the limits of detection and quantification by about 100-fold in comparison to the previous assay that used the same probe substrate,enabling reliable quantification of lower amounts of active enzyme than any other method.The precision test demonstrated that both intra- and inter-day variations for this assay were less than 5.5%.Furthermore,the newly developed assay has also been successfully used to screen and characterize the regulatory effects of small molecules on the expression level of UGT1A1 in living cells.Overall,an easy-to-use LC-FD based assay has been developed for ultra-sensitive UGT1A1 activities measurements in various biological systems,providing an inexpensive and practical approach for exploring the role of UGT1A1 in human diseases,interactions with xenobiotics,and characterization modulatory effects of small molecules on this conjugative enzyme.
Intron-targeted gene insertion in rice using CRISPR/Cas9:A case study of the Pi-ta gene

Intron-targeted gene insertion strategy using CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/CRISPR-associated Cas9) has been shown to be a potential tool for crop genetic improvement by targeted mutagenesis or gene replacement of an elite allele into widely cultivated rice varieties.The rice blast resistant protein Pi-ta,differs from its susceptible counterpart,pi-ta,by a single amino acid in exon 2.To create new materials resistant to the rice blast disease,we inserted a genomic fragment containing the exon 2 and 3' untranslated region (3' UTR) of Pi-ta into intron 1 of pi-ta in rice materials susceptible to rice blast using the intron-targeted insertion strategy.The gene insertion frequency was 3.8%.Several novel transgene-free progeny with stably inherited homozygous insert were identified in the T_1 generation,which have been crossed to rice germplasm bearing other resistance gene (R gene) for pyramiding of R genes.This work verified the feasibility of using the genome editing technology in improvement of qualitative agronomic trait in crops.
Clinical features of pediatric patients with COVID-19:a report of two family cluster cases

Background Coronovirus disease 2019 (COVID-19) has spread rapidly across the globe.People of all ages are susceptible to COVID-19.However,literature reports on pediatric patients are limited.Methods To improve the recognition of COVID-19 infection in children,we retrospectively reviewed two confirmed pediatric cases from two family clusters.Both clinical features and laboratory examination results of the children and their family members were described.Results The two confirmed children only presented with mild respiratory or gastrointestinal symptoms.Both of them had normal chest CT images.After general and symptomatic treatments,both children recovered quickly.Both families had travel histories to Hubei Province.Conclusions Pediatric patients with COVID-19 are mostly owing to family cluster or with a close contact history.Infected children have relatively milder clinical symptoms than infected adults.We should attach importance to early recognition,early diagnosis,and early treatment of infected children.
Design and optimization of cross bow-tie dipole feed with cavity for FAST

A cross bow-tie dipole feed with cavity and symmetrical E and H plane pattern is presented for the Five hundred-meter Aperture Spherical radio Telescope (FAST). In this paper we describe the design, optimization and simulation results of a wide-band cross dipole feed with cavity covering the frequency range from 300 MHz to 600 MHz for FAST. The main goals of our design are to ensure that, (1) we cover the octave bandwidth, (2) the feed has symmetrical E and H plane pattern, and (3) the physical dimension is suitable for mounting it in the reserved position of the FAST feed cabin. The initial results indicate that we have met most of our design goals. This kind of feed had been equipped with the multi-beam receiver to carry out observation on the platform of FAST cabin.