mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Image denoising exploiting inter- and intra-scale dependency in complex wavelet domain

A new locally adaptive image denoising method, which exploits the intra-scale and inter-scale dependency in the dual-tree complex wavelet domain, is presented. Firstly, a recently emerged bivariate shrinkage rule is extended to a complex coefficient and its neighborhood, the corresponding nonlinear threshold functions are derived from the models using Bayesian estimation theory. Secondly, an adaptive weight, which is able to capture the inter-scale dependency of the complex wavelet coefficients, is combined to the obtained bishrink threshold. The experimental results demonstrate an improved denoising performance over related earlier techniques both in peak signal-to-noise ratio (PSNR) and visual effect.
Ab initio configuration interaction study of the ground and low-lying excited states of ZnCd

The multi-reference configuration interaction (MRCI) electronic energy calculations have been carried out on the ground state (X~1Σ) as well as three low-lying excited states (~3Σ, ~1∏, ~3∏) of ZnCd dimer. Potential energy curves (PECs) are therefore generated and fitted to the analytical potential energy functions (APEFs) using the Murrel-Sorbie (MS) potential function. Based on the PECs, the vibrational levels of each state are determined by solving Schrodinger equation of nuclear motion, and corresponding spectroscopic parameters are accurately calculated using the APEFs. The present values of spectroscopic parameters including equilibrium positions and dissociation energies are compared with other theoretical reports available at present.
Generation of cluster states in thermal cavity

A scheme is reported for generating a multi-atom cluster state in thermal cavities, which is based on the simultaneous interaction of two two-level atoms with a single-mode cavity field driven by a classical field. The photon-number-dependent parts in the evolution operator are cancelled with the assistant of a strong classical field, so the scheme is insensitive to the thermal field. In the present scheme, the detuning between the atoms and the cavity is equal to the atom-cavity coupling strength, thus the operation speed is greatly improved, which is important in view of decoherence.
113-W in-phase mode output from two ytterbium-doped large-core double-cladding fiber lasers

Phase locking for two ytterbium-doped large-core fiber lasers has been demonstrated by using a self-imaging confocal resonator with a spatial filter. Steady high-contrast interference stripes are observed. The visibilities of coherent and incoherent stripes are 59% and 6%, respectively. The measured width of the central strip is in good agreement with the calculated result. For in-phase mode, the output power of the phase-locked fiber laser array is up to 113 W and corresponding slope efficiency is 38.5%.
局部晚期乳腺癌38例诊治分析

目的探讨局部晚期乳腺癌的诊断和治疗。方法回顾性分析38例局部晚期乳腺癌患者的临床资料。结果细针抽吸细胞学检查(FNA)、空芯针活检(CNB)均能确诊,尤其是空心针活检;38例均行新辅助化疗。结果完全缓解1例,部分缓解35例,稳定2例。化疗后所有患者均行手术切除,切口愈合良好。术后化疗及放射治疗顺利完成,无严重并发症。结论对于局部晚期乳腺癌患者,经FNA、CNB确诊后,应给予新辅助化疗+手术+术后化疗、放射治疗和(或)内分泌治疗。
Study on single-mode photonic crystal fibers in wide wavelength range

The comparatively large mode field single-mode photonic crystal fibers (PCFs) were fabricated, the lightwave from 600- to 1600-nm wavelength along this PCF could be transmitted in single mode. The manufacturing process technologies of the PCFs were exploited, and the drawing parameters of PCFs were also presented. The structure parameters on the single-mode performance of PCFs were theoretically studied, and in practice the design was proved. The measurements of cut-off wavelength and light intensity distribution showed that the PCF had comparatively wide single-mode operating wavelength range.
2002年至2006年南通市妇幼保健院剖宫产指征的调查

目的通过对近5年剖宫产指征的调查,探讨降低剖宫产率的方法。方法对2002年1月至2006年12月南通市妇幼保健院剖宫产的临床资料进行回顾性分析。结果随着以"社会因素"、"疤痕子宫"为指征的剖宫产比例的上升,剖宫产率逐年上升,围生儿发病率、产妇产后出血发生率并未下降。结论加强围生期保健,减少无医学指征剖宫产,是逐步降低剖宫产率的有效措施。
Feasibility of photoacoustic tomography for ophthalmology

For the eyeball composed of membrane and liquid, the contrast of ultrasound imaging is not high due to its small variance in acoustic impedance. As a new imaging modality, photoacoustic tomography combines the advantages of pure optical and ultrasonic imaging together and can provide high resolution, high contrast images. In this paper, the feasibility of photoacoustic tomography for ophthalmology is studied experimentally. A Q-switched Nd:YAG pulsed laser with 7-ns pulse width is used to generate photoacoustic signal of a porcine eyeball in vitro. The two-dimensional (2D) optical absorption image of the entire eyeball is reconstructed by time-domain spherical back projection algorithm. The imaging results agree well with the histological structure of the eyeball and show a high imaging contrast.
An acousto-optic Q-switched fiber laser using China-made double-cladding fiber

A simple laser-diode pumped acoustic-optic Q-switched fiber laser is reported by using China-made large-mode-area ytterbium-doped fiber. Q-switched pulses with a beam quality factor of M~2 about 2 and several hundred nanoseconds pulse duration are achieved at the repetition rate of 1-50 kHz. When the repetition rate is 1 kHz, the pulse energy is 0.93 mJ with the pulse duration of 132 ns. Meanwhile, the profile of laser pulses shows some mode-locking phenomena, the mechanism of the phenomena is discussed.
Laser-induced damage of high reflectors for Ti:sapphire laser system

A broadband (～176 nm, R>98%, λ_0=800 nm) and high laser-induced damage threshold (LIDT=2.4J/cm~2) TiO_2/HfO_2/SiO_2 high reflector (HR) for Ti:sapphire chirped-pulse amplification (CPA) laser system is fabricated by the electron beam evaporation. The refractive index and extinction coefficient of TiO_2 and HfO_2 films are calculated from single-layer films' transmittance spectra. The properties of HR are mainly determined by the high refractive index material. The high refractive index leads to wide bandwidth. A low extinction coefficient indicates low absorption and high LIDT. The possible damage mechanism of HR is discussed.
Double-image encryption based on joint transform correlation and phase-shifting interferometry

An image encryption method combining the joint transform correlator (JTC) architecture with phase-shifting interferometry to realize double random-phase encoding is proposed. The encrypted field and the decrypting key are registered as holograms by phase-shifting interferometry. This method can encrypt two images simultaneously to improve the encryption efficiency of the methods based on JTC architecture, and eliminate the system alignment constraint of the methods based on Mach-Zehnder interferometer (MZI) architecture. Its feasibility and validity are verified by computer simulations. Moreover, image encryption and decryption can be achieved at high speed optically or digitally. The encrypted data are suitable for Internet transmission.
Simulation of Needle-Type Corona Electrodes by the Finite Element Method

This paper describes a software tool, called LEVSOFT, suitable for the electric field simulations of corona electrodes by the Finite Element Method (FEM). Special attention was paid to the user friendly construction of geometries with corners and sharp points, and to the fast generation of highly refined triangular meshes and field maps. The execution of self-adaptive meshes was also implemented. These customized features make the code attractive for the simulation of needle-type corona electrodes. Some case examples involving needle type electrodes are presented.
切开复位内固定治疗不稳定性肩胛骨骨折的临床研究

肩胛骨骨折(scapular fracture)相对少见,仅占全身骨折的0.5%～1.0%。Hardegger认为,肩胛骨骨折大部分可通过功能康复治疗而获得满意疗效,仅少数移位严重或累及肩盂关节的骨折才需手术治疗。
施肥量对奶花芸豆产量效应和养分吸收的影响

用正交回归旋转组合设计,研究了密度及N、P(P_2O_5)、K(K_2O)施用量对奶花芸豆产量的影响;通过田间试验测定参数,利用计算机技术对试验数据进行处理,建立了产量函数模型;经计算机模拟寻优,筛选出了产量的最佳田间施肥方案。在试验条件下,当奶花芸豆栽培密度为167000株/hm~2,施N量300kg/hm~2,施P(P_2O_5)量200kg/hm~2,施K(K_2O)量47kg/hm~2组合时,产量可达到3825kg/hm~2。施肥能够提高奶花芸豆对N、P、K养分的吸收.
采用嫁接试验探讨不同甘蓝型油菜品种硼效率差异机理初报

溶液培养条件下,比较研究不同B效率甘蓝型油菜品种及其相互嫁接植株苗期对B吸收分配的差异。试验表明,缺B胁迫明显降低高效、低效油菜品种及其相互嫁接植株地上部B含量和累积量,高效品种降低幅度明显小于低效品种,两者相互嫁接植株降低幅度均居于高效品种与低效品种之间。无论缺B与否,高效品种和以高效品种为砧木的植株地上部B分配率分别有高于低效品种和以低效品种做砧木植株的趋势。推断甘蓝型油菜品种B效率差异是由根系吸收能力以及向地上部运输能力共同作用的结果。
哈尔滨铁路旅客列车上水系统水质调查

哈尔滨铁路局现有旅客列车105对,每年承担着6500余万人次的旅客运输任务,日均发送旅客18万人次;旅客旅行时间1～36h不等,每日人均饮水1500ml。因此,客车水质卫生情况与旅客健康紧密相关。为了解旅客列车水质卫生状况,找出影响旅客列车水质的因素,保证旅客旅行饮水卫生安全.
兰州市部分工作场所空气中苯系物浓度调查

苯、甲苯、二甲苯作为重要的化工原料应用越来越广泛,与此同时,工作场所中上述3种苯系物对人体的危害也日趋严重。GBZ2—2002《工作场所有害因素职业接触限值》[1]规定了室内空气中上述3种苯系物的最高容许浓度:苯≤40mg/m3,甲苯和二甲苯均≤100mg/m3。为了解工作场所空气中苯、甲苯、二甲苯的浓度,保护工作人员的身体健康,笔者于2006年3—9月对兰州市部分工作场所,特别对易产生上述3种苯系物的工作场所进行了采样分析。随机抽检该市3家化工厂、5家印刷厂和3家涂料厂,应用活性炭管空气采样器采样,以100ml/min流量采集空气样品15min,采用溶…
1997-2005年大连市甘井子区餐饮服务从业人员梅毒及艾滋病感染状况调查

近年来,无论在发达国家或发展中国家,性传播疾病均呈上升趋势。为了解大连市甘井子区餐饮服务业人员梅毒、艾滋病感染情况,探讨流行规律,为防治工作提供科学依据,笔者于1997—2005年对甘井子区餐饮服务业健康体检人员的梅毒、艾滋病检测资料进行了分析。
Theoretical analysis of ion kinetic energies and DLC film deposition by CH_4 + Ar (He) dielectric barrier discharge plasmas

The kinetic energy of ions in dielectric barrier discharge plasmas are analysed theoretically using the model of binary collisions between ions and gas molecules. Langevin equation for ions in other gases, Blanc law for ions in mixed gases, and the two-temperature model for ions at higher reduced field are used to determine the ion mobility. The kinetic energies of ions in CH_4 + Ar(He) dielectric barrier discharge plasma at a fixed total gas pressure and various Ar (He) concentrations are calculated. It is found that with increasing Ar (He) concentration in CH_4 + Ar (He) from 20% to 83%, the CH4+ kinetic energy increases from 69.6 (43.9) to 92.1 (128.5) eV, while the Ar~+ (He~+) kinetic energy decreases from 97 (145.2) to 78.8 (75.5) eV. The increase of CH_4~+ kinetic energy is responsible for the increase of hardness of diamond-like carbon films deposited by CH_4 + Ar (He) dielectric barrier discharge without bias voltage over substrates.
Chaotic phenomena in Josephson circuits coupled quantum cellular neural networks

In this paper the nonlinear dynamical behaviour of a quantum cellular neural network (QCNN) by coupling Josephson circuits was investigated and it was shown that the QCNN using only two of them can cause the onset of chaotic oscillation. The theoretical analysis and simulation for the two Josephson-circuits-coupled QCNN have been done by using the amplitude and phase as state variables. The complex chaotic behaviours can be observed and then proved by calculating Lyapunov exponents. The study provides valuable information about QCNNs for future application in high-parallel signal processing and novel chaotic generators.
Asymptotical solutions of coupled nonlinear Schr?dinger equations with perturbations

In this paper Lou's direct perturbation method is applied to the perturbed coupled nonlinear Schr?dinger equations to obtain their asymptotical solutions, which include not only the zero-order solutions but also the first-order modifications. Based on the asymptotical solutions, the effects of perturbations on soliton parameters and the collision between two solitons are then discussed in brief. Furthermore, we directly simulate the perturbed coupled nonlinear Schr?dinger equations by split-step Fourier method to check the validity of the direct perturbation method. It turns out that our analytical results are well supported by the numerical calculations.
灰土桩基础的研究与应用

灰土桩基础是在灰土挤密桩的基础上,经过大量的试验研究发展出来的一种桩基形式,因其性能可靠、取材容易、施工简便、造价低廉而广泛使用于中小型工业与民用建筑中。结合灰土桩试块强度、侧限抗压强度、桩侧摩擦力和端阻力的试验结果,对灰土桩的设计取值进行了研究,给出了相应计算方法。
CREATIVE DESIGN BASED ON KNOWLEDGE MANAGEMENT IN ENGINEERING DESIGN

To support and serve engineering design,creative design based on knowledge management is proposed.The key knowledge factors of creative design are analyzed and discussed,and knowledge extraction tools are utilized to distill the important knowledge to serve for knowledge resource of creative design.The implementation of creative design mode is described and executed,which can promote the intelligent asset of the enterprise and shorten the period of creative design.With this study,design afflatus and conceptual design can be achieved expediently and effectively.
Optimal Tracking Controller Design for a Small Scale Helicopter

A model helicopter is more difficult to control than its full scale counterpart. This is due to its greater sensitivity to control inputs and disturbances as well as higher bandwidth of dynamics. This work is focused on designing practical tracking controller for a small scale helicopter following predefined trajectories. A tracking controller based on optimal control theory is synthesized as a part of the development of an autonomous helicopter. Some issues with regards to control constraints are addressed. The weighting between state tracking performance and control power expenditure is analyzed. Overall performance of the control design is evaluated based on its time domain histories of trajectories as well as control inputs.
CFD Based Determination of Dynamic Stability Derivatives in Yaw for a Bird

Dynamic yaw stability derivatives of a gull bird are determined using Computational Fluid Dynamics(CFD) method. Two kinds of motions are applied for calculating the dynamic yaw stability derivatives C_(Nr) and C_(Nβ). The first one relates to a lateral translation and, separately, to a yaw rotation. The second one consists of a combined translational and rotational motion. To determine dynamic yaw stability derivatives, the simulation of an unsteady flow with a bird model showing a harmonic motion is performed. The flow solution for each time step is obtained by solving unsteady Euler equations based on a finite volume approach for a small reduced frequency. Then, an evaluation of unsteady forces and moments for one cycle is conducted using harmonic Fourier analysis. The results of the dynamic yaw stability derivatives for both simulations of the model show a good agreement.
BODY PRESSURE DISTRIBUTION OF AUTOMOBILE DRIVING HUMAN MACHINE CONTACT INTERFACE

Aiming at the fatigue and comfort issues of human-machine contact interface in automo- bile driving and based on physiological and anatomical principle,the physiological and biochemical process of muscles and nerves in the formation and development of fatigue is analyzed systematically. The fatigue-causing physiological characteristic indexes are mapped to biomechanical indexes like muscle stress-strain,the compression deformation of blood vessels and nerves etc.from the perspec- tive of formation mechanism.The geometrical model of skeleton and parenchyma is established by applying CT-scanned body data and MRI images.The general rule of comfort body pressm'e distribu- tion is acquired through the analysis of anatomical structure of buttocks and femoral region.The comprehensive test platform for sitting comfort of 3D adjustable contact interface is constructed.The test of body pressure distribution of human-machine contact interface and its comparison with subjec- tire evaluation indicates that the biomechanical indexes of automobile driving human-machine con- tact interface and body pressure distribution rule studied can effectively evaluate the fatigue and comfort issues of human-machine contact interface and provide theoretical basis for the optimal de- sign of human-machine contact interface.
Nutrient content affecting Spodoptera frugiperda and Dalbulus maidis occurrence in corn

incidence of Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and Dalbulus maidis (Delong & Wolcott) (Homoptera: Cicadellidae). The treatments were represented by unfertilized corn plants and corn plants fertilized with 250 kg of the formulation 4-14-8 (N-P-K) +100 kg of ammonium sulfate (AS)/ha and 500 kg of the formulation 4-14-8 (N-P-K) +200 kg of AS/ha, arranged in randomized blocks with four replicates. Attacks by S. frugiperda and D. maidis were higher as the nitrogen, sulfur, calcium and copper content in the leaves of corn increased. The effects of calcium and copper found in this study were not consistent with that of lower susceptibility associated with higher levels of these nutrients mentioned in the literature. We believe that there was a cumulative effect of the nutrients altogether, building up a nutritiously better vegetable which in turn had less reserve for defense, or that the content of both nutrients in the leaves were not high enough to induce such effects.
Functional characterization of the NF-κB transcription factor gene REL2 from Anopheles gambiae

Abstract The REL2 gene plays an important role in innate immunity against both Gram (+) and Gram (-) bacteria and malaria parasites in Anopheles gambiae, the main vector of malaria in Africa. Through alternative splicing, REL2 produces two protein products, REL2F (with a Rel-homology domain as well as an inhibitory ankyrin repeat region) and REL2S (without the ankyrin repeats). In the immune-competent cell line Sua1B from An. gambiae, REL2 has been shown to be a key regulator for cecropin A (or CEC1). The high level expression of CEC1 in Sua1B was postulated to be the result of constitutive activation of REL2F. Here we showed that REL2F is indeed processed, albeit at a low level, in the Sua1B cell line. The primary cleavage requires residue 678 (an aspartic acid). Proteolytic cleavage of REL2F can be enhanced by challenge with bacteria Escherichia coli and Bacillus subtilis, but not with fungus Beauveria bassiana. The inducible cleavage can be substantially reduced by RNA interference against PGRP-LC and CASPL1. Over-expression of REL2S or a constitutively active form of REL2F (REL2F380C or REL2F678) in An. gambiae cell line can further increase expression of CEC1 and other antimicrobial peptide genes. Over-expression of these constitutive active proteins in an immune naive cell line, MSQ43, from Anopheles stephensi, results in even more dramatic increased expression of antimicrobial peptides.
Role of venom and ovarian proteins in immune suppression of Ostrinia furnacalis (Lepidoptera: Pyralidae) larvae parasitized by Macrocentrus cingulum (Hymenoptera: Braconidae), a polyembryonic parasitoid

Venom and ovarian proteins in braconid and ichneumonid wasps play an important role in the successful parasitism of their host, especially for immune suppression immediately after oviposition. In this study, we compared the effect of venom and ovarian proteins collected from the female wasps of Macrocentrus cingulum, a polyembryonic parasitoid of the larvae of Ostrinia funacalis, on the encapsulation capacity of Sephadex A-25 beads at 4 h and 24 h post-injection both in vivo and in vitro. The results showed that the ovarian proteins significantly interfered with the encapsulation capacity of hemocytes in a dose-dependent manner. Spreading and viability of hemocytes in O. furnacalis was not disrupted by venom and ovarian proteins at various concentrations injected. It seems likely that the ovarian proteins from M. cingulum play a role in suppressing the encapsulation capacity of host hemocytes.
Highly Birefringent Honeycomb Photonic Bandgap Fibre

A new structure of highly birefringent honeycomb photonic bandgap fibres (PBGFs), including an elliptical air hole in its solid core, is proposed and analysed by using full vectorial plane wave expansion method. From the numerical results it is confirmed that the proposed PBGF has birefringence of the order of 10-3. Moreover, there are two single-polarization single-mode ranges at varying normalized wavelength, in one of which only the slow-axis mode exists, and in the other only the fast-axis mode exists, which has not been achieved in index-guiding photonic crystal fibres so far.
Partial Wave Cross Sections for Collisions between Helium Atoms and Hydrogen Halide Molecules

The close-coupling method is utilized to calculate partial cross sections for elastic and inelastic scattering of He atoms with HX (X=F, Cl, Br) molecule based on the CCSD (T) potential energy surfaces obtained in the previous research. The calculation is performed at the incident energy of 200 meV. The rationality of our results has been confirmed by comparison with the available theoretical results. The tendency of the elastic and inelastic rotational excitation partial wave cross sections varying with the reduced mass of the three systems is obtained.
Secure and Efficient Pseudorandom Bit Generator for Chaotic Stream Ciphers

Based on the entropy criterion and n-dimensional uniform distribution of nonlinear digital filter (NDF), we present an efficient NDF-based pseudorandom bit generator (NDF-PRBG) for chaotic stream ciphers. The cryptographic properties of the proposed NDF-PRBG are analysed, and some experiments are made. The results show that it has desirable cryptographic properties, and can be used to construct secure stream ciphers with high speed.
On the possibility of self-trapping transition of acoustic polarons in two dimensions

A 2D electron-longitudinal-acoustic-phonon interaction Hamiltonian is derived and used to calculate the ground-state energy of the acoustic polarons in two dimensions. The numerical results for the ground-state energy of the acoustic polarons in two and three dimensions are obtained. The 3D results agree with those obtained by using the Feynman path-integral approach. It is found that the critical coupling constant of the transition from the quasifree state to the self-trapped state in the 2D case is much smaller than in the 3D case for a given cutoff wave-vector. The theory has been used to judge the possibility of the self-trapping for several real materials. The results indicate that the self-trappings of the electrons in AlN and the holes in AlN and GaN are expected to be observed in 2D systems.
Dynamics of erbium-doped fibre laser with optical delay feedback and chaotic synchronization

The dynamical behaviour of the erbium-doped fibre single-ring laser with an optical delay feedback is discussed. Simulation shows that as the delay rate increases, the lasing light displays period-doubling which leads to chaos and via reverse period-doubling route returns from chaos to periodic. At a particular delay rate the intermittently chaotic route to chaos is also observed. The identical synchronization based on chaos in this ring laser is demonstrated by numerical simulation.
A threshold voltage model for high-k gate-dielectric MOSFETs considering fringing-field effect

In this paper, a threshold voltage model for high-k gate-dielectric metal–oxide-semiconductor field-effect transistors (MOSFETs) is developed, with more accurate boundary conditions of the gate dielectric derived through a conformal mapping transformation method to consider the fringing-field effects including the influences of high-k gate-dielectric and sidewall spacer. Comparing with similar models, the proposed model can be applied to general situations where the gate dielectric and sidewall spacer can have different dielectric constants. The influences of sidewall spacer and high-k gate dielectric on fringing field distribution of the gate dielectric and thus threshold voltage behaviours of a MOSFET are discussed in detail.
Absolute differential, elastic integrated and moment transfer cross sections for electron–OCS collisions at intermediate and high energies

A complex optical model potential modified by incorporating the concept of bonded atom, which takes into consideration the overlapping effect of electron clouds between atoms in a molecule, is firstly employed to calculate the absolute differential, elastic integrated and moment transfer cross sections for electron scattering by OCS over the incident energy range from 200 to 1000 eV using the additivity rule model at Hartree-Fock level. The calculated results are compared with those obtained by experiment and other theories wherever available, and good agreement is obtained over a wide energy range. It is shown that the additivity rule model together with the modified potential is completely suitable for calculating the absolute differential, elastic integrated and moment transfer cross sections of electron scattering by molecules such as OCS.