mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
RFID在血液信息系统中的应用研究

条形码技术在血液信息系统中主要用于血液信息的快速读取和录入,虽然它技术成熟、成本较低、应用非常普遍,但是也存在一些缺点,如对数据传输需要通过光学清楚的线性扫描才能完成,可编码的数据有限且不能被改变,1次只能读取1个条码,阅读能力会受到灰尘、水和划伤的影响等等。射频识别(radio frequency identification,RFID)是1种非接触式的自动识别技术,RFID系统一般包括电子标签和读写器2部分,两者之间使用无线电磁波通信,可在不同的频率、波段下工作,常见的有低频(125或134 kHz) 、高频(13. 56 MHz) 、超高频(860 ~ 960 MHz)以及微波(2. 45 GHz)等。正是因RFID具有比条形码更快的阅读速度、更大的存储容量,以及可读写信息、不要求线性读取并能够工作在更远的距离等特点,近年来,它已被广泛应用于物体识别、安全防护、仓储管理、交通运输等众多领域。为推动RFID在输血医学领域的应用,国际输血协会(ISBT)于2006年成立了RFID特别工作组,研究RFID发展现状,并于2010年发布了RFID 在输血医学中的应用指南(以下简称“指南”) 。依据《指南》, ISBT推荐在输血医学领域中使用被动型高频(HF,13. 56 MHz) RFID 技术,电子标签和阅读器的通信应符合ISO/IEC 18000-3标准。我们对将RFID应用于血液信息系统作了初步应用研究,报道如下。
综合措施对全膝关节置换患者围手术期用血量的影响

目的调查综合措施对全膝关节置换患者围手术期用血的影响,为临床合理用血提供依据。方法对2011年1~9月及2012年1~9月行全膝关节置换的539名患者的临床资料进行回顾性分析,记录患者的年龄、性别、术前和出院时的Hb、Hct以及围手术期的输血量等,按年份分组比较,并进行统计学分析。结果2012年和2011年相比行全膝关节置换的患者增多,用自体血量增加(15 320 mL),用异体血量下降(8 836 mL),2012年患者出院时Hb Hct检测结果分别为(119.25±13.21)g/L;(35.02±6.32)%,与2011年相比较,均P>0.05。结论综合措施可以减少全膝关节置换患者围手术期用血量,开展的自体血回输技术可以减少异体血量,保证患者用血安全的同时可以节省宝贵的血液资源。
血液接触与献血者日常生活中相关风险行为的识别和规避

确保血液安全首先是从低危献血者中采集较安全的血液。献血者属于经血传播疾病的低危人群,但他们在日常生活中对危险行为抵制的意识却并不强。有文献报道,大部分被调查者对“经血传播”这一概念尚不清楚,另外日常的一些行为习惯具有一定的隐蔽性,其潜在的危险性易被忽略。他们一旦正确理解了相关知识,认识到这些行为习惯的危险性,就能够马上改变自己的行为。为此,我们提出“血液接触”这一概念,使献血者以及所有公民能正确识别这些危险行为,充分认识血液接触与经血传播疾病二者的关系,增强人们在日常生活中拒绝所有可能造成血液接触的风险行为意识,从源头上更为有效地控制血液质量。血液接触这一用语虽然有过使用,但未见对该用语有明确定义,且一般认为血液接触是指采供血员工或血液制品单位员工职业防护的用语。在此,我们将血液接触与风险行为的识别和规避的有关情况综述如下。
间充质干细胞研究进展

间充质干细胞(mesenchymal stem cells,MSCs)是1类具有自我更新能力及多向分化潜能的成体干细胞。在不同的诱导条件下可以分化为许多不同的组织,如骨、软骨、脂肪、内皮、肌肉、神经和上皮组织等。MSCs 可以从成体多种组织获得,分离方法简便,体外培养方便,便于自体移植、外源基因转染及表达调控等,在细胞治疗、基因治疗及组织再生及修复等方面具有广阔的应用前景。
海南省2001~2010年无偿献血状况调查分析

目的了解海南省无偿献血发展状况,为策略制定提供依据。方法收集2001~2010年海南省无偿献血档案信息,统计分析总献血量增长率、献血人次增长率及400 mL献血比例等数据。结果海南省2001~2010年总献血量、献血人次及400 mL献血比例整体呈增长趋势,献血总量从7 058 660 mL上升至26 940 350 mL,年度增长16.21%,献血人次从34 279万上升至79 207万,年度增长均值10.05%,献血人次增长均值小于总献血量增长均值。结论在临床供血快速增长、血源招募相对乏力的情况下,提高400 mL献血比例是保障供血的关键。同时,创新招募策略和措施,大幅增加献血人数及献血人次更是保障供血的根本。
DNA Binding and Oxidative Cleavage by a Water-soluble Carboxyl Manganese(III) Corrole

The interaction of calf thymus DNA (CT DNA) and water-soluble manganese corrole, 5,10,15-tris(4-carboxyphenyl)corrolatomanganese(III) (MnIIITCPC) has been studied by absorption spectra, fluorescence spectra and CD spectra, as well as by viscosity measurements. Results revealed that this manganese corrole binds to CT DNA via an outside groove binding mode with intrinsic binding constant K_b of 4.67×10~4 L·mol~(?1). DNA cleavage activities of Mn~(III)TCPC in the presence of various oxidants were also investigated. Mn~(III)TCPC can cleave the supercoiled plasmid pBR322 DNA to both nicked and linear form in the presence of hydrogen peroxide or tert-BuOOH, while no nuclease activity was observed by using KHSO_5 as oxidant. Inhibitor tests revealed that hydroxyl radicals or singlet oxygen was not involved in Mn~(III)TCPC mediated DNA oxidative cleavage. It is suggested that (oxo)manganese(V) corrole is the possibly active intermediate in this oxidative cleavage reactions.
Path Integral Monte Carlo Study of X@C_(50) [X=H_2, He, Ne, Ar]

Path integral Monte Carlo (PIMC) method is employed to study the thermal properties of the X@C_(50) [X=H_2, He, Ne, Ar] system at temperatures from 5 K to 300 K. The interaction energies and probability distribution functions of one noble gas atom or H_2 inside D_(5h)-symmetry C_(50) are obtained. A rough sphere model is used in calculating interaction energies, as a comparison. This model gives much lower interaction energy than PIMC calculations on all X@C_(50), except He@C_(50). The PIMC method and the sphere model get nearly the same values of interaction energies on He@C_(50). The spatial distributions are enlarged by the increase in temperature, while the interaction energies change slowly in a wide range of temperature. Temperature is not the major reason for the stability of the system. It is impossible to trap an X atom into C_(50), except H_2 because only the H_2@C_(50) has positive interaction energies from the PIMC calculations.
Construction of tree volume equations for Chinese fir plantations in Guizhou Province, southwestern China

Forest volume, the major component of forest biomass, is an important issue in forest resource monitoring.It is estimated from tree volume tables or equations.Based on tree volume data of 1840 sample trees from Chinese fir(Cunninghamia lanceolata)plantations in Guizhou Province in southwestern China, parallel one-and two-variable tree volume tables and tree height curves for central and other areas were constructed using an error-in-variable modeling method.The results show that, although the one-variable tree volume equations and height curves between the central and other areas were significantly different, the two-variable volume equations were sufficiently close, so that a generalized two-variable tree volume equation could be established for the entire province.
Reproduction of juniper (Juniperus polycarpos) in Khorasan Razavi, Iran

Juniperus species(juniper)are resistant to drought and have medicinal properties.In order to investigate the condition of juniper reproduction and prevent a decline in its area, largely caused by problems in natural regeneration, the asexual reproduction of juniper has received special attention besides its sexual propagation.Among the six species of juniper in Iran, the most abundant are Juniperus polycarpos and J.excelsa.Juniperus polycarpos is ambi-sexual and J.excelsa unisexual.We show that collecting seeds in September provided for better germination than in November.In sexual propagation 82.0%and in asexual(graft)47.6%success were achieved.Compared to a mixture of water, lime and hormones, a natural treatment of only water had better results.Diurnal change of temperature increased germination of juniper seeds over a constant temperature.Aphyllous stem cuttings from mature and old trees are less successful in rooting than leafy cuttings of juniper saplings.A treatment with Aaterra significantly reduced the percentage of rooted cuttings and total root length.Aliette, Fongarid, Octave, Benomyl, Delsene M and Maneb fungicides significantly increased the percentage of rooted cuttings but did not affect total root length.Autumn explants formed more calli than spring explants.Successful multiplication was achieved by treating buds with a mixture of 0.7%polyvinyl pyrrolidone(PVP)and 2%sucrose and cultured in a basal MS or WRC medium, with a maximum number of new buds.In consideration of extracted material of juniper species in remedy of infectious, fungus, contagious diseases as well as for drought resistance and longevity of this species in severe arid environmental conditions and various industrial applications, reproduction and seed production by micro propagation and biotechnology are necessary.
Effects of variation in seed sources and pre-sowing treatments on seed germination of Tamarindus indica: a multi-purpose tree species in Bangladesh

We investigated the morphology and germination of Tamarindus indica seeds in order to discover the effects of variation in seed sources and pre-sowing treatments on germination. The experiment was carried out in the nursery of the Forestry and Wood Technology Discipline, Khulna University, Bangladesh. Seeds were collected from different but healthy trees from various locations in Bangladesh and subjected to four pre-sowing treatments, i.e., control, immersion in cold water (4°C for 24 h), immersion in hot water (80°C for 10 min) and scarification with sand paper. Seed germination was carried out in poly-bags with a mixture of topsoil and cow dung in the ratio of 3:1. The average length of the fresh seeds was 1.35±0.26 cm, their width 1.07 ±0.20 cm and thickness 0.69±0.11 cm. The results revealed that pre-sowing treatments affected the germination process of seeds, which significantly increased the germination percentage with the cold water (81.67%) and scarification with sand paper (82.33%) treatments, compared with those in the control (58.33%) and hot water treatment (59.00%). In all treatments germination started on average within 5 to 7 days after the start of the treatments and were completed from 13 to 19 days later. The greatest success in germination (82.33%) was found in scarification with sand paper, followed with 81.67% in the cold water treatment. The results of analyses of variance (ANOVA) showed significant differences (p<0.05) in germination closing dates, seed germination periods and germination percentages among the treatments but no significant difference among seed sources. However, the effect of the interaction between seed source variation and pre-treatment differed significantly in seed germination closing dates and germination percentages. We recommend cold water treatment (submersion of seed at a temperature of 4°C for a 24-h period) for seed germination of T. indica in rural Bangladesh.
The effect of high-pressure and high-temperature drying treatments on the deresination ratio of Pinus massoniana

This study investigated the possibility of using high-temperature and high-pressure schedules to treat Pinus massoniana wood in order to reduce its oil content. We discuss the effect of drying temperature, absolute pressure and the holding time on the deresination ratio in P. massoniana wood and establish a model for the deresination ratio as a function of drying temperature, absolute pressure and holding time. The results show that the deresination ratio increased from 7.14% to 87.04% when the temperature increased from 150 to 200℃, the absolute pressure from 0.1 to 0.6 MPa and the holding time from 1 to 3 h. The optimal model for the deresination ratio (Y) with drying temperature (t), absolute pressure (p) and holding time (τ) is: Y = 0.284t + 113.424p + 3.518τ - 42.486, with a coefficient of determination (R2) of 0.930. Compared with drying temperature and holding time, absolute pressure plays the more significant role in the deresination process. This study could provide a theoretical basis to the practical production of P. massoniana wood.
Regeneration of tree species in the sub-tropical forest of Alaknanda Valley, Garhwal Himalaya, India

We studied the regeneration of tree species in the sub-tropical forest of Alaknanda Valley in Garhwal Himalaya, India. The overall regeneration status was fairly good in the study area. Seedling density ranged between 520 and 1,240 seedlings per ha while the density of saplings varied between 400 and 800 saplings per ha. Out of eight sites studied, five sites, viz., A_1, A_2, B_1, B_2and C_2 contained the highest number of seedlings (280-480 per ha) and saplings (200-440 per ha) for Pinus roxburghii and remaining three sites viz., C_1, D_1and D_2 represented the highest number of seedlings (240-400 per ha) and saplings (200-240 per ha) for Anogeissus latifolius. The DBH class distribution of the tree species revealed that the highest number of individuals was concentrated in the lower diameter classes while smallest numbers were found in the higher diameter classes. Species such as Acacia catechu, Anogeissus latifolius, Dalbergia sissoo, Engelhardtia spicata, Lannea coromandelica, Mallotus philippensis and Pinus roxburghii have the largest number of saplings and seedlings in the lower DBH classes, suggesting that they have good regeneration potential. Other species such as Aegle marmelos, Bauhinia variegata, Bombax ceiba, Cassia fistula, Erythrina variegata, Haldinia cordifolia, Mangifera indica, Ougeinia oojeinensis, Phyllanthus emblica, Syzygium cumini, Terminalia alata and Toona hexandra have either no or very small number of saplings in the lower DBH classes, which indicates that the status of these species implies poor regeneration.
Effect of the amount of lignin on tensile properties of single wood fibers

Chemical components are the main factors affecting the mechanical properties of wood fibers. Lignin is one of the main components of wood cell walls and has a critical effect on the mechanical properties of paper pulp and wood fiber based composites. In this study, we carried out tensile tests on single mature latewood tracheids of Chinese fir (Cunninghamia lanciolata (Lamb.) Hook.), using three different delignified treatment methods to obtain different amounts of lignin. We applied single fiber tests to study the effect of the amount of lignin on mechanical tensile properties of single wood fibers at the cellular level. The results show that in their dry state, the modulus of elasticity of single fibers decreased with the reduction in the amount of lignin; even their absolute values were not high. The amount of lignin affects the tensile strength and elongation of single fibers considerably. Tensile strength and elongation of single fibers increase with a reduction in the amount of lignin.
Transition Mode of Two Parallel Flags in Uniform Flow

The coupled flapping of two side-by-side identical flags in uniform flow is observed experimentally and numerically. Besides the early reported stable, in-phase, and out-of-phase modes, a transition mode between the in-phase and out-of-phase modes is newly presented. Essentially different from the other modes, the flapping in this transition mode is no longer a single cycle motion. Especially, the FFT analysis of the displacement-time curve indicates that there are multiple peaks of frequency in this mode, of which the smaller value is comparable to the frequency of the in-phase mode and the larger one is close to that of the out-of-phase mode. Changing of the weights of different single cycle motions may explain the mode transition.
QTL detection for growth traits in Pinus elliottii var. elliottii and P. caribaea var. hondurensis

Quantitative trait locus(QTL)detection was carried out for growth traits in 122 F1 progenies of Pinus elliottii var.elliottii(PEE)×P.caribaea var.hondurensis(PCH)hybrid.The PCH male parent linkage map contained 108 markers in 16 linkage groups, while the PEE female parent contained 93 markers in 19 linkage groups.Sequence-related amplified polymorphism(SRAP), microsatellite(SSR), expressed sequence tag polymorphism(ESTP)and inter-simple sequence repeat(ISSR)were selected from an existing linkage map.Growth traits investigated were height at age five(HT05)and six years(HT06), diameter at breast height at age five(DBH05)and six years(DBH06)and annual growth from age five to six years of height(AGHT)and diameter at breast height(AGDBH).Kruskal-Wallis and interval mapping approaches were used to estimate levels of significance, the number of QTLs, the percentage of the phenotypic variation explained by each of QTLs and their positions on the genetic linkage maps.Twenty six QTLs with significance levels p<0.05 were detected on the parental maps for the six growth traits, which explained more than 15%of the phenotypic variation, suggesting an existence of major-effect genes.Several QTLs had the pleiotropy controlling more than one single growth trait.Overall, the proportion of phenotypic variation explained by QTLs ranged from 5.9%to 40.6%for HT05and HT06, from 6.6%to 42.0%for DBH05 and DBH06 and from 5.8%to 22.3%for AGHT and AGDBH.The results from this study provide a basis for marker-aided selection(MAS)in PEE×PCH hybrids.
Principle and Experimental Verification of Novel Dual Driving Face Rotary Ultrasonic Motor

Existing rotary ultrasonic motors operating in extreme environments cannot meet the requirements of good environmental adaptability and compact structure at same time,and existing ultrasonic motors with Langevin transducers show better environmental adaptability,but size of these motors are usually big due to the radial arrangement of the Langevin transducers.A novel dual driving face rotary ultrasonic motor is proposed,and its working principle is experimentally verified.The working principle of the novel ultrasonic motor is firstly proposed.The 5th in-plane flexural vibration travelling wave,excited by the Langevin transducers around the stator ring,is used to drive the rotors.Then the finite element method is used in the determination of dimensions of the prototype motor,and the confirmation of its working principle.After that,a laser Doppler vibrometer system is used for measuring the resonance frequency and vibration amplitude of the stator.At last,output characteristics of the prototype motor are measured,environmental adaptability is tested and performance for driving a metal ball is also investigated.At room temperature and 200 V(zero to peak) driving voltage,the motor’s no-load speed is 80 r/min,the stalling torque is 0.35 N·m and the maximum output power is 0.85 W.The response time of this motor is 0.96 ms at the room temperature,and it decreases or increases little in cold environment.A metal ball driven by the motor can rotate at 210 r/min with the driving voltage 300 V(zero to peak).Results indicate that the prototype motor has a large output torque and good environmental adaptability.A rotary ultrasonic motor owning compact structure and good environmental adaptability is proposed,and lays the foundations of ultrasonic motors’ applications in extreme environments.
Numerical Investigation of the Aerodynamic Performance Affected by Spiral Inlet and Outlet in a Positive Displacement Blower

The flow in the positive displacement blower is very complex.The existing two-dimensional numerical simulation cannot provide the detailed flow information,especially flow characteristics along the axial direction,which is unfavorable to improve the performance of positive displacement blower.To investigate the effects of spiral inlet and outlet on the aerodynamic performance of positive displacement blower,three-dimensional unsteady flow characteristics in a three-lobe positive displacement blower with and without the spiral inlet and outlet are simulated by solving Navier-Stokes equations coupled with RNG k-ε turbulent model.In the numerical simulation,the dynamic mesh technique and overset mesh updating method are used.The computational results are compared with the experimental measurements on the variation of flow rate with the outlet pressure to verify the validity of the numerical method presented.The results show that the mass flow rate with the change of pressure is slightly affected by the application of spiral inlet and outlet,but the internal flow state is largely affected.In the exhaust region,the fluctuations of pressure,velocity and temperature as well as the average values of velocity are significantly reduced.This illustrates that the spiral outlet can effectively suppress the fluctuations of pressure,thus reducing reflux shock and energy dissipation.In the intake area,the average value of pressure,velocity and temperature are slightly declined,but the fluctuations of them are significantly reduced,indicating that the spiral inlet plays the role in making the flow more stable.The numerical results obtained reveal the three-dimensional flow characteristics of the positive displacement blower with spiral inlet and outlet,and provide useful reference to improve performance and empirical correction in the noise-reduction design of the positive displacement blowers.
Rule-based Fault Diagnosis of Hall Sensors and Fault-tolerant Control of PMSM

Hall sensor is widely used for estimating rotor phase of permanent magnet synchronous motor(PMSM). And rotor position is an essential parameter of PMSM control algorithm, hence it is very dangerous if Hall senor faults occur. But there is scarcely any research focusing on fault diagnosis and fault-tolerant control of Hall sensor used in PMSM. From this standpoint, the Hall sensor faults which may occur during the PMSM operating are theoretically analyzed. According to the analysis results, the fault diagnosis algorithm of Hall sensor, which is based on three rules, is proposed to classify the fault phenomena accurately. The rotor phase estimation algorithms, based on one or two Hall sensor(s), are initialized to engender the fault-tolerant control algorithm. The fault diagnosis algorithm can detect 60 Hall fault phenomena in total as well as all detections can be fulfilled in 1/138 rotor rotation period. The fault-tolerant control algorithm can achieve a smooth torque production which means the same control effect as normal control mode (with three Hall sensors). Finally, the PMSM bench test verifies the accuracy and rapidity of fault diagnosis and fault-tolerant control strategies. The fault diagnosis algorithm can detect all Hall sensor faults promptly and fault-tolerant control algorithm allows the PMSM to face failure conditions of one or two Hall sensor(s). In addition, the transitions between health-control and fault-tolerant control conditions are smooth without any additional noise and harshness. Proposed algorithms can deal with the Hall sensor faults of PMSM in real applications, and can be provided to realize the fault diagnosis and fault-tolerant control of PMSM.
Typical Gait Analysis of a Six-legged Robot in the Context of Metamorphic Mechanism Theory

The equivalent mechanism of the system is often considered as one specific mechanism in most existing studies of multi-legged robots, however the equivalent mechanism is varying while the robot moves on the ground. Four typical tripod period gaits of a radial symmetrical six-legged robot are analyzed. Similar to the metamorphic mechanism, the locomotion of multi-legged robot is considered as a series of varying hybrid serial-parallel mechanisms by assuming the constraints of the feet on the ground with hinges. One gait cycle is divided into several periods, and in different walking period there is a specific equivalent mechanism corresponding to it, and the walking process of multi-legged robot is composed by these series of equivalent mechanisms. Walking performance can be got by analyzing these series of equivalent mechanisms. Kinematics model of the equivalent mechanism is established, workspaces of equivalent mechanisms are illustrated by simulation and a concept of static stability workspace is proposed to evaluate the static stability of these four gaits. A new method to calculate the stride length of multi-legged robots is presented by analyzing the relationship between the workspace of two adjacent equivalent parallel mechanisms in one gait cycle. The stride lengths of four gaits are given by simulations. Comparison of stride length and static stability among these four typical tripod gaits are given. It has been proved that mixed gait and insect-wave gait II have better static stability than mammal kick-off gait and insect-wave gait I. Insect-wave gait II displays its advantage on stride length while the height of robot body lower than 87 mm, mammal kick-off gait has superiority on stride length while the height of robot body higher than 115 mm, and insect-wave gait I shows its shortcoming in stride length. The proposed method based on metamorphic theory and combining the footholds and body height of robot provides a new method to comprehensive analyze the performance of multi-legged robot.