明代靖江王陵神道石刻在当代首饰中的应用研究——以作品《武士控马》为例

以明代靖江王陵神道中《武士控马》石刻的造型特征为例,探讨《武士控马》石刻造型中的设计美学与当代首饰结合的可能性。

宋陵石雕艺术浅谈

陵墓石雕是我国艺术宝库中瑰丽的遗产之一,宋陵石雕就是以其独特的艺术风格在我国艺术史上据有其重要的一席。我们于1980年冬对宋陵石雕作了一番调查,现仅就所见作一介绍,并提出一些不成熟的看法。一、宋陵石雕的概况宋陵是指北宋皇帝的陵区,位于河南省巩县,分布在西村、芝田、孝义、回郭镇四个公社的三十平方华里范围内。北宋九个皇帝除徽、钦二帝被金人掳持北上外。

库图勒考

kutule 一词大量见诸清代的满文文献,在汉文典籍电音译为“库图勒”或者“苦独立”,意译则有“跟马人”、“厮卒”、“控马奴”、“跟役”等等的不同。在八旗中,库图勒是一个重要的角色。可惜,由于过去对满文资料的发掘和利用不够,有关库图勒的问题未能引起人们的注意。有鉴于此,笔者试就库图勒的历史渊源、它在八旗中的作用、以及内部成分的变化等问题,进行初步的探讨。

A NEW CONTROL METHOD FOR ULTRASONIC MOTOR

A new method for the control of the speed of an ultrasonic motor and its implementation are proposed. The method is merely used by detecting the time when motor′s monitor signal reaches a non zero reference value than a zero one, the direction, in which the driving frequency of the motor should be shifted, can be promptly calculated. With the aid of a CPU and the phase locked frequency doubling technique, the motor can be steadily driven in a wide range of frequency and the optimum frequency can be captured rapidly and precisely. Experiment shows that the above method is available.

“三个臭皮匠”

"我们三个臭皮匠顶个诸葛亮,今天这事办的漂亮!""那还用说,这是我们集体的智慧,这事我一个人办不了,大伙团结在一起就不同了吧,下次可不要小瞧了咱们。"这是说什么呢?原来这是刘公庙加油站今早发生了段"小插曲"。

QoS-based MAC protocol for cognitive radio networks

In order to improve the throughput performance of the secondary users （SUs） in the cognitive radio （CR） environment, a quality of service （QoS） based media access control （MAC） protocol is proposed. In this protocol, the CR node maps the channel state as a vector, and the transmitter and the receiver obtain the final channel map through an AND operation to prepare for an optional channel set. Data from the upper application layer are classified into two priority levels according to the QoS requirement. The data of each level relate to different contention windows so that the priority of real time data can be guaranteed. A two-dimensional discrete-time Markov chain is utilized to evaluate the system performance, and mathematical expressions of the system throughput are derived. Simulation results show that compared with the IEEE 802. 11 distributed coordination function （DCF）, the proposed MAC protocol can achieve higher throughput.

中日唐陵石刻保护

陕西唐陵石刻是中国古代石刻艺术的瑰宝,尤其顺陵、桥陵、乾陵石刻是其典型的艺术体现.顺陵是武则天之母杨氏之墓,陵前石刻现存有34件,石走狮和天禄是其中的精品.乾陵是唐高宗李治与武则天的合葬墓,陵园石刻总计124件,内城东、西、北门之外各有石狮两尊,北门外另有仗马和控马人各3对,号称"六龙".桥陵是唐睿宗李旦的陵墓,陵园石刻更富于写实性,堪称唐陵石刻艺术之冠,陵园现存石刻50件.由于各种因素的影响,这些珍贵文物长期遭受着自然风化和破坏,大部分石刻现状堪忧.

Speed Control of Travelling Wave Type Ultrasonic Motors Using Artificial Neural Network

Ultrasonic motor (USM) is a newly developed motor, and it has some excellent performances and useful features, therefore, it has been expected to be of practical use. However, the driving principle of USM is different from that of other electromagnetic type motors, and the mathematical model is complex to apply to motor control. Furthermore, the speed characteristics of the motor have heavy nonlinearity and vary with driving conditions. Hence, the precise speed control of USM is generally difficult. This paper proposes a new speed control scheme for USM using an artificial neural network. An accurate tracking response can be obtained by random initialization of the weights of the network owing to the powerful on line learning capability. Two prototype ultrasonic motors of travelling wave type were fabricated, both having 100 mm outer diameters of stator and piezoelectric ceramic. The usefulness and validity of the proposed control scheme are examined in experiments.

An Experimental Study on Microcomputer Control of Pump Controlled Motor Systems

Pump controlled motor electrohydraulic servo systems are much used in circumstances where high power drive is needed. This kind of system has the advantage of energy-saving. But, it also has some defects that have to be improved. Microcomputer control of a pump controlled motor electrohydraulic servo system is studied. A PID controller is first adopted on the closed loop control system, and experimental results are obtained. Then, a model reference adaptive controller is designed and realised on the same system applying a single board microcomputer. Experimental results show that the dynamic properties of the adaptive control system is much better than those of the PID system under different inertia load conditions.

The influence of physiobiomechanical parameters,technical aspects of shooting,and psychophysiological factors on biathlon performance:A review

The biathlon, an Olympic sporting discipline that combines cross-country skiing with rifle marksmanship, entails considerable physiological demands, as well as fine motor control while shooting after intense exercise and under mental pressure. Although much of our knowledge about cross-country skiing is probably also applicable to the biathlon, carrying the rifle and shooting under stress make this discipline somewhat unique. The present review summarizes and examines the scientific literature related to biathlon performance, with a focus on physiological and biomechanical factors and shooting technique, as well as psychophysiological aspects of shooting performance. We conclude with suggestions for future research designed to extend our knowledge about the biathlon, which is presently quite limited.2018 Published by Elsevier B.V. on behalf of Shanghai University of Sport. This is an open access article under the CC BY-NC-ND license. （http：//creativecommons.org/licenses/by-nc-nd/4.0/）.

Illusory Control： Female’s Sexuality and Male’s Fantasy in The Changeling

Thomas Middleton and William Rowley’s The Changeling enacts an astonishment on the stage to the audience about the protagonist Beatrice-Joanna’s down fall-the noble lady being straightly encroached by her desire and being manipulated by the obscene servant De Flores, who, by means of rape, controls her body and finally destroys her. My article attempts to explore male’s expectations and their power over female’s sexuality with Jacques Lacan’s psychoanalytical approach. Moreover, it will elaborate that Beatrice-Joanna’s tragic outcome is not only contributed by her murder and moral degradations, but also, before her transgression being committed, her body has already been regulated by the patriarchal power in the Renaissance society-either she is valuable in the marriage market with her chastity or she is condemned by losing it. Also, the science of medicine employed to test virginity represents the male’s methodological hegemony and anxiety in facing the unknown of a female’s chastity. For the fantasy always regulating the male’s power structure over female’s body, the real manipulation over female sexuality is doomed to be an illusion.

Optimization of the CBSMAP Queueing Model

The present paper is devoted to the research of controlled queueing models at control of CBSMAP （Controlled Batch Semi-Markov Arrival Process）. The control is based on the theory of controlled semi-markov processes for system optimization. The control is carried out using a type of the next batch and moments of batch arrivals.

More severe toxicity of gold nanoparticles with rougher surface in mouse hippocampal neurons

Gold nanoparticles(GNPs)have been extensively used in nanomedicine and neuroscience owing to their biological inertness,peculiar opto-electronic and physico-chemical features.However,the effect of GNPs shape on the neurophysiological properties of single neuron is still unclear.To tackle this issue,different shape GNPs(nanosphere,nanotriakisoctahedron and nanoflower)were synthesized to investigate the effect of GNPs on the voltage-dependent sodium channel and the action potential(AP)of hippocampal CA1 neurons in mice.The results indicated that GNPs inhibited the amplitudes of voltage-gated sodium current(I_(Na))and led to a hyperpolarizing shift in the voltage-dependence curve of both activation and inactivation of I_(Na).GNPs also increased neuronal excitability and altered some properties of AP.Moreover,most alterations in AP properties were observed in nanoflower GNPs treated CA1 neurons,suggesting that the neurotoxicity of gold nanoparticles is surface roughness-dependent.These results may provide a valuable direction in the clinical application of GNPs.

The ECRH Transmission System for HL-2A Tokamak

Electron cyclotron resonance heating and electron cyclotron current drive （ ECRH/ECCD ） have been developed significantly in recent years in many devices such as Tore Supra, JT-60U, Heliotron J. It has many advantages over other means of heating and current drive. The EC power can be injected as narrow gaussian beams, giving rise to so highly localized power deposition as to make ECRH an ideal candidate for local MHD control.

Electric Tilt ＆ Telescopic Column Driven by EPS Motor

In order to improve driver convenience, electronic tilt ＆ tele column is applied to a full sized car. To operate electronic tilt ＆ tele, it needs two motors and one electronic controller. Because of high cost component parts, it is difficult to apply to a midsize car. Meanwhile, to cope with regulations of fuel efficiency and emission, motor driven power steering system is applied to a full sized car from a small car. But MDPS （Markov decision processes） also consist of high cost component parts （motor and electronic controller）. This paper proposed the MDPS motor-driven electronic tilt ＆ tele column system which has single motor and an integrated electronic controller and introduced the detailed design study and evaluation results.

Efficacy of the Pepper Extracts to Control Zucchini Yellow Mosaic Virus

The Zucchini yellow mosaic virus （ZYMV） （Potyvirus） on “zucchini” presents great economic importance for Malagasy farmers. Numerous aphid species （Hemiptera： Aphididae） spread viral particles, which are easily transmitted mechanically, too. Farmers ignored this disease, therefore, its control became extremely difficult with insecticides. This study aimed to evaluate efficacy of chili pepper extracts. Treatments vary as a function of its initiations and were repeated at weekly intervals until harvest. It was conducted in market gardens around the town of Antananarivo. The study compared four treatments and repeated three times： firstly, plots received a protection as soon as installation of culture （preventive protection）; secondly, plots received treatment with low infestation （about a quarter plants infested） （late protection）; thirdly, plots received treatment with high infestation （about half of plants infested） （latest protection）; lastly, plots without treatment （the control）. As a result, pepper extracts can provide a significant level to control against aphids attack, and permit to delay virus installation on plots, which received treatment as soon as implementation of culture. However, it cannot eradicate and cannot limit extend of virus disease on plots already infested. Economic analysis shows that preventive treatment of pepper extracts to fight virus attack provides an even greater return on its investment than all other terms. Thus, use of pepper extracts can reduce chemical treatment and pollution.

Effect of sumatriptan on gastric emptying:A crossover study using the BreathID system

AIM:To determine the effect of oral sumatriptan on gastric emptying using a continuous 13 C breath test(BreathID system).METHODS:Ten healthy male volunteers participated in this randomized,2-way crossover study.The subjects fasted overnight and were randomly assigned to receive a test meal(200 kcal/200 mL) 30 min after pre-medication with sumatriptan 50 mg(sumatriptan condition),or the test meal alone(control condition).Gastric emptying was monitored for 4 h after administration of the test meal by the 13 C-acetic acid breath test performed continually using the BreathID system.Then,using Oridion Research Software(β version),the time taken for emptying of 50% of the labeled meal(T 1/2) similar to the scintigraphy lag time for 10% emptying of the labeled meal(T lag),the gastric emptying coefficient(GEC),and the regression-estimated constants(β and κ) were calculated.The statistical significance of any differences in the parameters were analyzed using Wilcoxon's signed-rank test.RESULTS:In the sumatriptan condition,significant differences compared with the control condition were found in T 1/2 [median 131.84 min(range,103.13-168.70) vs 120.27 min(89.61-138.25);P = 0.0016],T lag [median 80.085 min(59.23-125.89) vs 61.11 min(39.86-87.05);P = 0.0125],and β [median 2.3374(1.6407-3.8209) vs 2.0847(1.4755-2.9269);P = 0.0284].There were no significant differences in the GEC or κ between the 2 conditions.CONCLUSION:This study showed that oral sumatriptan significantly delayed gastric emptying of a liquid meal.

A New Neogregarine Entomopathogen from Crioceris asparagi （Linne, 1758） in Turkey

In present study, a neogregarine from Crioceris asparagi is reported for the first time in Turkey. C. asparagi （common asparagus beetle） is an important pest of Asparagus officinalis L. crops in Turkey and the world. Therefore, determining of the protist pathogens of C. asparagi is aimed. During the study, a total of 1,099 C. asparagi adults were examined thoroughly using a light microscope. Insects were collected from the provinces of Manisa, Eskisehir and Bahkesir in Turkey, with 117 of them collected from Manisa, 204 of them from Bahkesir and 778 of them from Eskisehir. A neogregarine pathogen was found in Bahkesir and Manisa. Total infection rate was 18% for Bahkesir between the years 2014-2015 and 15.3% for Manisa in 2011. Oocysts of the neogregarine pathogen were observed only in malpighian tubes of C. asparagi adults. Fresh mature oocysts of the neogregarine was measured as 9.34 ± 0.74 lam （n = 50） in length and 5.27 ± 0.36 μm （n = 50） in width. Identification of entomopathogens is prerequisite for their use in biological control.

Topography and human disturbances are major controlling factors in treeline pattern at Barun and Manang area in the Nepal Himalaya

The alpine treeline ecotone is an important component of mountain ecosystems of the Nepal Himalaya; it plays a vital role in the livelihood of indigenous people,and provides ecosystem services. However,the region faces a problem of paucity of data on treeline characteristics at the regional and landscape scales. Therefore,we used Remote Sensing(RS),and Geographic Information Science(GIS) approaches to investigate cross-scale interactions in the treeline ecotone. Additionally,European Space Agency land cover map,International Center for Integrated Mountain Development(ICIMOD) land cover map,ecological map of Nepal,and United States Geological Survey Shuttle Radar Topography Mission-Digital Elevation Model were used to analyze treeline pattern at the regional scale. Digital Globe high-resolution satellite imagery of Barun(eastern Nepal) and Manang(central Nepal) were used to study treeline patterns at the landscape scale. Treeline elevation ranges from 3300-4300 m above sea level. Abies spectabilis,Betula utilis,and Pinus wallichiana are the main treeline-forming species in the Nepal Himalaya. There is an east to west treeline elevationgradient at the regional scale. No slope exposure is observed at the regional scale; however,at the landscape scale,slope exposure is present only in a disturbed area(Manang). Topography and human disturbance are the main treeline controlling factor in Barun and Manang respectively.

Research on improved active disturbance rejection control of continuous rotary motor electro-hydraulic servo system

In order to meet the precision requirements and tracking performance of the continuous rotary motor electro-hydraulic servo system under unknown strong non-linear and uncertain strong disturbance factors,such as dynamic uncertainty and parameter perturbation,an improved active disturbance rejection control(ADRC)strategy was proposed.The state space model of the fifth order closed-loop system was established based on the principle of valve-controlled hydraulic motor.Then the three parts of ADRC were improved by parameter perturbation and external disturbance;the fast tracking differentiator was introduced into linear and non-linear combinations;the nonlinear state error feedback was proposed using synovial control;the extended state observer was determined by nonlinear compensation.In addition,the grey wolf algorithm was used to set the parameters of the three parts.The simulation and experimental results show that the improved ADRC can realize the system frequency 12 Hz when the tracking accuracy and response speed meet the requirements of double ten indexes,which lay foundation for the motor application.