mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Catalytic decomposition of CH_4 over Ni-Al_2O_3-SiO_2 catalysts:Influence of pretreatment conditions for the production of H_2

This article reports the production of CO_x free hydrogen and carbon nanofibers by the catalytic decomposition of methane over Ni-Al_2O_3-SiO_2 catalysts.The influence of reaction temperature,pretreatment temperature,and effect of reductive pretreatment on the decomposition of methane activity is investigated.The physico-chemical characteristics of fresh and deactivated samples were characterized using BET-SA,XRD,TPR,SEM/TEM,CHNS analyses and correlated with the methane decomposition results obtained.The Ni-Al-Si (4:0.5:1.5) catalyst reduced with hydrazine hydrate produced better H_2 yields of ca.1815 mol H_2/mol Ni than the catalyst reduced with 5% H_2/N_2.
The Top of the Biomimetic Triangle

There is increasing observational evidence indicating that crystalline interfacial water layers play a central role in evolution and biology. For instance in cellular recognition processes, in particular during first contact events, where cells decide upon survival or entering apoptosis. Understanding water layers is thus crucial in biomedical engineering, specifically in the design of biomaterials inspired by biomimetic principles. Whereas there is ample experimental evidence for crystalline interfacial water layers on surfaces in air, their subaquatic presence could not be verified directly, so far. Analysing a polarity dependent asym-metry in the surface conductivity on hydrogenated nanocrystalline diamond, we show that crystalline interfacial water layers persist subaquatically. Nanoscopic interfacial water layers with an order different from that of bulk water have been identified at room temperature on both hydrophilic and hydrophobic model surfaces – in air and subaquatically. Their generalization and systematic inclusion into the catalogue of physical and chemical determinants of biocompatibility complete the biomimetic triangle.
Novel antenna selection algorithm based on Tanimoto similarity

A new antenna selection algorithm for multiple input multiple output (MIMO) wireless systems is proposed. The modified Tanimoto coefficient is used to compare the similarity of the rows/columns of the channel matrix. Based on the calculated similarity, the proposed algorithm chooses the antenna subset, which has the maximum product of dissimilarity and Frobenius norm. The proposed algorithm requires low computational complexity as to the optimal selection but with comparative outage capacity and average signal to noise ratio (SNR) performance. It can improve both the outage capacity and the average SNR as compared to random selection. The simulation results are shown to validate our algorithm.
Modified joint probabilistic data association with classification-aided for multitarget tracking

Joint probabilistic data association is an effective method for tracking multiple targets in clutter, but only the target kinematic information is used in measure-to-track association. If the kinematic likelihoods are similar for different closely spaced targets, there is ambiguity in using the kinematic information alone; the correct association probability will decrease in conventional joint probabilistic data association algorithm and track coalescence will occur easily. A modified algorithm of joint probabilistic data association with classification-aided is presented, which avoids track coalescence when tracking multiple neighboring targets. Firstly, an identification matrix is defined, which is used to simplify validation matrix to decrease computational complexity. Then, target class information is integrated into the data association process. Performance comparisons with and without the use of class information in JPDA are presented on multiple closely spaced maneuvering targets tracking problem. Simulation results quantify the benefits of classification-aided JPDA for improved multiple targets tracking, especially in the presence of association uncertainty in the kinematic measurement and target maneuvering. Simulation results indicate that the algorithm is valid.
Research of robust adaptive trajectory linearization control based on T-S fuzzy system

A robust adaptive trajectory linearization control (RATLC) algorithm for a class of nonlinear systems with uncertainty and disturbance based on the T-S fuzzy system is presented. The unknown disturbance and uncertainty are estimated by the T-S fuzzy system, and a robust adaptive control law is designed by the Lyapunov theory. Irrespective of whether the dimensions of the system and the rules of the fuzzy system are large or small, there is only one parameter adjusting on line. Uniformly ultimately boundedness of all signals of the composite closed-loop system are proved by theory analysis. Finally, a numerical example is studied based on the proposed method. The simulation results demonstrate the effectiveness and robustness of the control scheme.
福州地区临床输血现状调查

目的了解福州地区医疗机构临床用血合理性情况。方法选择10所用血量较大的医院，每所医院调阅55-80份有输血治疗的病历（共741份），依据《临床输血技术规范》的“手术及创伤输血指南”和“内科输血指南”对病历的输血合理性进行评估，并汇总分析。结果741份病历中，“合理用血”占43．9％，“部分合理”占40.0％，“不合理”占16.1％。手术科室“部分合理”和“不合理”用血比例（67.5％）显著高于非手术科室（29．9％）（P〈0.01）。不同血液成分“不合理”输血的比例为：血浆82．3％、冷沉淀66．7％、红细胞38．2％、血小板27．7％。结论不合理输血现象在所调查的医院和科室中普遍存在，以手术科室尤为突出；血液成分不合理输注现象以血浆最为突出。不合理输注的类型主要有血浆与红细胞搭配输注、输注血浆补充白蛋白以及红细胞输血没有严格根据适应证和输注剂量过大。
Effect of Discharge Voltage on an Ion Sheath Formed at a Grid in a Multi-Dipole Discharge Plasma

It is experimentally demonstrated that a relatively strong ion-rich sheath formed at a fixed negative bias of the grid can be changed to a rather weak ion sheath （sheath potential weakly retards electrons） only by increasing the discharge voltage in the system. At sufficiently high negative grid bias, an increase of discharge voltage enhances the ion collection current at the grid. An explanation is put forward in support of this experimental observation. A slight density enhancement with a fall in plasma electron temperature is also observed with the increasing negative grid bias.
Fluorescence lifetime imaging in biosciences: technologies and applications

The biosciences require the development of methods that allow a non-invasive and rapid investigation of biological systems. In this aspect, high-end imaging techniques allow intravital microscopy in real-time, providing information on a molecular basis. Far-field fluorescence imaging techniques are some of the most adequate methods for such investigations. However, there are great differences between the common fluorescence imaging techniques, i.e., wide-field, confocal one-photon and two-photon microscopy, as far as their applicability in diverse bioscientific research areas is concerned. In the first part of this work, we briefly compare these techniques. Standard methods used in the biosciences, i.e., steady-state techniques based on the analysis of the total fluorescence signal originating from the sample, can successfully be employed in the study of cell, tissue and organ morphology as well as in monitoring the macroscopic tissue function. However, they are mostly inadequate for the quantitative investigation of the cellular function at the molecular level. The intrinsic disadvantages of steady-state techniques are countered by using time-resolved techniques. Among these fluorescence lifetime imaging (FLIM) is currently the most common. Different FLIM principles as well as applications of particular relevance for the biosciences, especially for fast intravital studies are discussed in this work.
Product polarization distribution: Stereodynamics of the reaction of atom H and radical NH

The product angular momentum polarization of the reaction of H+NH is calculated via the quasiclassical trajectory method (QCT) based on the extended London-Eyring-Polanyi-Sato (LEPS) potential energy surface (PES) at a collision energy of 5.1 kcal/mol. The calculated results of the vector correlations are denoted by using the angular distribution functions. The polarization-dependent differential cross sections (PDDCSs) demonstrate that the rotational angular momentum of the product H2 is aligned and oriented along the direction perpendicular to the scattering plane. Vector correlation shows that the angular momentum of the product H2 is aligned in the plane perpendicular to the velocity vector. It suggests that the reaction proceeds preferentially when the reactant velocity vector lies in a plane containing all three atoms. The orientation and alignment of the product angular momentum affects the scattering direction of the product molecules. The polarization-dependent differential cross sections (PDDCSs) reveal that scattering is predominantly in the backward hemisphere.
ID-based deniable ring authentication with constant-size signature

Deniable ring authentication allows a member of an ad-hoc sunset of participants to authenticate a message without revealing which member has issued the signature, and the verifier cannot transfer the signature to any third party. It is an important cryptographic primitive for privacy and anonymous communication. Unfortunately, the size of the signature of the proposed deniable ring authentication is dependent on the size of the ring. It is inefficient especially when the size of the ring is large. In this paper, we propose an ID-based version of deniable ring authentication. We present a generic construction which uses dynamic accumulators to construct ID-based deniable ring authentication with constant-size signature. We also give an ID-based deniable ring authentication based on bilinear pairings, which is proved to be secure in the random oracle model.
Influence of Downstream Flow on Conduction Phase of Coaxial Plasma Opening Switch

Plasma behaviour and the scaling relations in a coaxial plasma opening switch (POS) using hydrogen plasma are studied self-consistently based on the two-dimensional magnetohydrodynamic (MHD) equations in conjunction with the generalized Ohm's law. The vacuum region on the right of POS is included in the model and the influence of downstream flow on the conduction characteristics is discussed. It is found that with the penetration of magnetic field, the pure hydrogen plasma is pushed downstream significantly; and POS still conducts current after the magnetic field arrives at the load edge of POS, which is different from the previous experimental results in a multispecies POS. It is because that the noticeable downstream plasma in the pure hydrogen POS may continue to conduct the current, while in the multispecies POS, the downstream plasma is unimportant so that the conduction phase ends soon after the magnetic field reaches the load edge. The scaling relation obtained from the simulations including the downstream region is consistent with the experimental results.
Characteristics of Ions Emitted from Laser-Induced Silver Plasma

In this work, study of laser-induced ions is presented. The plasma was produced by focusing a Nd:YAG laser, with a wavelength of 1064 nm, a pulsed width of 9～14 ns, a power of 1.1 MW and energy of 10 mJ, on silver target in vacuum (10~(-3) Torr = 1.3332 Pa). The characteristics of ion streams were investigated by CR-39 detectors located at angles of 0°, 30°, 60° and 90° with respect to normal of the target. The distance between the silver target and each detector was 11 cm. The energy of silver ions was found ranging from 1.5 eV to 1.06E 4 eV. There was a high concentration of ions with low energy as compared to those with high energy, showing the energy distribution amongst the ions. The flux of ions was maximum in the axial direction which was decreasing with the angle increase with respect to normal of the target, and finally became minimum in the radial direction. Hence the silver ions have shown anisotropic behaviour.
Passive location using CDMA mobile communication system based on repeater equipment

To overcome the drawback of a short operation range and low-resolution of a passive location system using a civil communication signal, the new idea that utilizes code division multiple access (CDMA) signal and repeater is disposed off. First, the CDMA passive location model and observation function are given, and the error source and error range are analyzed. Subsequently, the CDMA passive location algorithm in a repeater environment is described and simulated. The simulation result shows that the algorithm can provide the location value with high accuracy.
Cross similarity measurement for speaker adaptive test normalization in text-independent speaker verification

Speaker adaptive test normalization (Atnorm) is the most effective approach of the widely used score normalization in text-independent speaker verification, which selects speaker adaptive impostor cohorts with an extra development corpus in order to enhance the recognition performance. In this paper, an improved implementation of Atnorm that can offer overall significant advantages over the original Atnorm is presented. This method adopts a novel cross similarity measurement in speaker adaptive cohort model selection without an extra development corpus. It can achieve a comparable performance with the original Atnorm and reduce the computation complexity moderately. With the full use of the saved extra development corpus, the overall system performance can be improved significantly. The results are presented on NIST 2006 Speaker Recognition Evaluation data corpora where it is shown that this method provides significant improvements in system performance, with relatively 14.4% gain on equal error rate (EER) and 14.6% gain on decision cost function (DCF) obtained as a whole.
Role of the hippocampus on learning and memory functioning and pain modulation

The hippocampus, an important part of the limbic system, is considered to be an important region of the brain for learning and memory functioning. Recent studies have demonstrated that synaptic plasticity is thought to be the basis of learning and memory functioning. A series of studies report that similar synaptic plasticity also exists in the spinal cord in the conduction pathway of pain sensation, which may contribute to hyperalgesia, abnormal pain, and analgesia. The synaptic plasticity of learning and memory functioning and that of the pain conduction pathway have similar mechanisms, which are related to the N-methyl-D-aspartic acid receptor. The hippocampus also has a role in pain modulation. As pain signals can reach the hippocampus, the precise correlation between synaptic plasticity of the pain pathway and that of learning and memory functioning deserves further investigation. The role of the hippocampus in processing pain information requires to be identified.
Subacute toxicity of exogenous manganese on rat hippocampal neurons Examination by MRI and optical microscopy

BACKGROUND: Manganism may cause learning and memory impairment by influencing the normal function of the hippocampus, however, this effect requires further examination.OBJECTIVE: To investigate the effects of manganism on the rat hippocampus using immunohistochemistry and MRI examination.DESIGN, TIME AND SETTING: A randomized controlled study, performed in the School of Medicine and Life Science, Jianghan University and the State Key Laboratory of Atomic & Molecular Physics and Spectroscopy, Chinese Academy of Science, from July to September 2005.MATERIALS: Fourteen healthy SD rats aged two months were selected for this study. MnCl_2 4H_2O (BIID, UK) (batch number: 9791325); glial fibrillary acidic protein (GFAP) staining kit (Beijing Zhongshan Biotechnology); Biospec 4.7T/30 animal MRI formatter (Bruker, Germany).METHODS: Fourteen rats were randomly divided into a control group (n=7) and a manganism group (n=7). Rats in the manganism group Received intraperitoneal injection of MnCl_2·4H_2O (50mg/kg), once a day, for four successive days. Rats in the control group were injected according to the manganism regimen, but using saline instead of manganese solution.MAIN OUTCOME MEASURES: Twenty-four hours after the last injection, rats were examined using MRI. Immunohistochemically stained GFAP and hematoxylin-eosin stained hippocampal sections were observed under optical microscopy.RESULTS: Fourteen rats were included in the final analysis. After manganese treatment, T1 weighted image and inversion recovery MRI demonstrated that the signal intensity was significantly enhanced in hippocampus, compared to controls. Neuronal necrosis was not observed in the hippocampus after HE staining. As compared to the control group, GFAP expression was markedly enhanced in the hippocampus of the manganism group.CONCLUSION: Within the rat brain, manganese preferentially localizes to the hippocampus and can induce astroctye activation.
甘氨酸亚铁片治疗孕妇缺铁性贫血的疗效

铁缺乏症是人类常见疾病之一，包括铁减少、缺铁性红细胞生成和更为严重的缺铁性贫血，其中缺铁性贫血易发于孕妇和儿童。据统计，世界上约有20亿人患有铁缺乏症，即使在发达国家，铁缺乏也是最常见的微量元素缺乏症之一，90％的营养性贫血是由铁缺乏导致的.缺铁性贫血目前常用的治疗药物是硫酸亚铁片,由于其口感差,易刺激肠胃引起呕吐,患者用药依从性差.国外研究证明,以甘氨酸亚铁的形式补铁具有较好疗效,但是该药品是还适合中国人群未见相关文献报道.作者以甘氨酸亚铁片治疗中国孕妇的缺铁性贫血,并与硫酸亚铁片的疗效进行比较.
An analysis of single-index model with monotonic link function

The single-index model with monotonic link function is investigated. Firstly,it is showed that the link function h(·) can be viewed by a graphic method. That is,the plot with the fitted response y on the horizontal axis and the observed y on the vertical axis can be used to visualize the link function. It is pointed out that this graphic approach is also applicable even when the link function is not monotonic. Note that many existing nonparametric smoothers can also be used to assess h(·). Therefore,the I-spline approximation of the link function via maximizing the covariance function with a penalty function is investigated in the present work.The consistency of the criterion is constructed. A small simulation is carried out to evidence the efficiency of the approach proposed in the paper.
A locking-free anisotropic nonconforming rectangular finite element approximation for the planar elasticity problem

This paper deals with a new nonconforming anisotropic rectangular finite element approximation for the planar elasticity problem with pure displacement boundary condition. By use of the special properties of this element,and by introducing the complementary space and a series of novel techniques,the optimal error estimates of the energy norm and the L~2-norm are obtained. The restrictions of regularity assumption and quasi-uniform assumption or the inverse assumption on the meshes required in the conventional finite element methods analysis are to be got rid of and the applicable scope of the nonconforming finite elements is extended.
内镜下药物注射治疗消化性溃疡活动性出血32例疗效观察

消化性溃疡活动性出血的患者一般出血量大,有一定的危险性。常规治疗的基本措施之一是制酸治疗。本研究用内镜下药物注射1∶10 000肾上腺素治疗,与常规治疗组进行对比,观察其疗效。现报道如下.
肾病综合征患者血浆凝血酶激活的纤溶抑制物的变化及其意义

肾病综合征患者机体凝血、抗凝及纤溶系统失衡，血小板功能亢进，血液黏稠度增加，处于血液高凝状态，易并发血栓及栓塞性并发症。凝血酶激活的纤溶抑制物（thrombin—activatable fibrinolysis inhibitor，TAFI）具有羧肽酶活性。血液凝固时，TAFI可以被凝血酶激活，特异性裂解纤维蛋白C末端赖氨酸残基，下调纤溶系统.在心绞痛及心肌梗死溶栓的患者中,血浆TAFI水平增高.本研究观察了TAFI在肾病综合征患者中的变化,并探讨其改变的意义.
七氟醚用于小儿快速麻醉诱导的临床观察

氯胺酮用于小儿全麻诱导较普遍,但肌肉注射氯胺酮不仅增加了患儿的痛苦,而且由于疼痛的刺激常使患儿哭闹,加重了家长的心理负担。患儿的哭闹可使呼吸道分泌物增加,血压升高,心率增快。另外,氯胺酮有导致患儿呼吸骤停的潜在并发症,这些均增加了麻醉管理的难度。七氟醚作为一种新型吸入麻醉药物,具有血气分配系数低,对呼吸道无刺激作用,不增加气道分泌物,不引起支气管痉挛,对循环抑制轻微等优点。适用于面罩下快速诱导。本研究通过采用七氟醚诱导和氯胺酮诱导对小儿麻醉进行比较,旨在寻找更好、更适合于小儿麻醉诱导的方法。
基于集对分析的灌区运行状况综合评价研究

研究使用了集对分析综合评价方法对灌区的运行状况进行综合评价,结合河南引黄灌区自身的特点以及评价指标体系的设计原则,提出了引黄灌区运行状况综合评价指标体系。运用集对分析联系度的同异反态势度法,建立了灌区工程状况、经济效益和生态环境指标体系的评价模型,用此模型对该灌区20022、004和2006年的运行状况进行了综合评价,结果与实际情况相符,且计算过程简单,可比性强,表明将该方法运用于灌区运行状况综合评价中是切实可行的.
Genetic Basis of Ethylene Perception and Signal Transduction in Arabidopsis

Ethylene is a simple gaseous hormone in plants. It plays important roles in plant development and stress tolerance. In the presence of ethylene treatment, all ethylene receptors are in an activated form, which can physically interact with CTR1 and consequently recruit CTR1 protein to endoplasmic reticulum membrane to activate it. Activated CTR1 suppresses the downstream signal transduction by an unknown mechanism. Upon binding to its receptors, ethylene will inactivate the receptor/CTR1 module and in turn alleviate their inhibitory effect on two positive regulators acting downstream of CTRI: EIN2 and EIN3. Genetic study reveals that EIN2 is an essential component in the ethylene signaling pathway but its biochemical function remains a mystery. EIN3 is a plant-specific transcription factor and its protein abundance in the nucleus is rapidly induced upon ethylene treatment. In the absence of ethylene signal, EIN3 protein is degraded by an SCF complex containing one of the two F-box proteins EBF1/EBF2 in a 26S proteasome-dependent manner. EIN3 can bind to the promoter sequences of a number of downstream components, such as ERFs, which in turn bind to a GCC box,a cis-element found in many ethylene-regulated defense genes. Ethylene has been shown to also regulate many other hormones' signaling pathways including auxin, abscisic acid and jasmonic acid, implying the existence of complicated signaling networks in the growth, development and defense responses of various plants.
Localization and Dynamic Change of Saikosaponin in Root of Bupleurum chinense

Anatomical, histochemical and phytochemical methods were used to investigate the structure, the localization and content changes of total saikosaponin and saikosaponin-a of the roots of Bupleurum chinense DC. at different developmental stages. Results showed that saikosaponin was mainly distributed in pericycle and primary phloem in the young root; but in the mature root, it was mainly distributed in vascular cambium and secondary phloem. During the whole growth period from the pre-blossom, blossom, fruit, and fruit mature periods until the pre-withering period, it was in the fruit mature period that both the total saikosaponin content and the saikosaponin-a content reached the highest level. So the last 20 d of October was considered as the right collecting season for the drug of B. chinense. In addition, the quality of 1-year-old drug was better than that of 2-year-old drug due to its higher saikosaponin content. On the other hand, judging from the external characteristics of the drug, the one with an acerose taproot and more lateral roots was of better quality. The results offered theoretical bases for selecting medicinal material of high quality and determining the most appropriate harvesting stage and part of B. chinense.
Comparative Analysis of JmjC Domain-containing Proteins Reveals the Potential Histone Demethylases in Arabidopsis and Rice

Histone methylation homeostasis is achieved by controlling the balance between methylation and demethylation to maintain chromatin function and developmental regulation. In animals, a conserved Jumonji C (JmjC) domain was found In a large group of histone demethylases. However, it is still unclear whether plants also contain the JmjC domaincontaining active histone demethylases. Here we performed genome-wide screen and phylogenetic analysis of JmjC domaincontaining proteins in the dicot plant, Arabidopsis, and monocot plant rice, and found 21 and 20 JmjC domain-containing, respectively. We also examined the expression of JmjC domain-containing proteins and compared them to human JmjC counterparts for potential enzymatic activity. The spatial expression patterns of the Arabidopsis JmjC domaincontaining genes revealed that they are all actively transcribed genes. These active plant JmjC domain-containing genes could possibly function in epigenetic regulation to antagonize the activity of the large number of putative SET domaincontaining histone methyltransferase activity to dynamically regulate histone methylation homeostasis.