有关明月巷

白昼的太阳从头顶安静地走过 三轮车、小贩、来来往往逛街人的声音 从来没有安静过 短短的一条不足百米的巷子 倏然问让我触摸到

Understanding advertisements from the perspective of relevance theory

This paper approaches advertisements on the basis of relevant theory. It elaborates how the advertiser as addresser in communication succeed in conveying his intention for publicity and how the recipient as addressee takes advantage of different types of relevant devices in reasoning out the communicative purposes from four different angles, namely, non-stereotypical interpretation of advertisements, psychological requirements of the recipient as addressee in advertisements, advertisements as explicit information and the situational approach to implicit meanings of advertisements. It aims at providing guidance for advertisement planning and translation by means of the exposure of rules underlying advertisements.

The New Enhanced Simple Authenticated Key Agreement Algorithm

Simple authenticated key agrcement algorithm is one of the Diffie-Hellman key agreement variations. It prevents man-inthe-middle attack with only two more packets required to agree on the secret session key, but it has some weaknesses. In this paper, a new enhanced simple authenticated key agreement algorithm is proposed to overcome these weaknesses on the basis of analyzing the weaknesses of the related protocols. The new enhanced simple authenticated key agreement algorithm can get over replay attack and password guessing attack, provide perfect forward secrecy, and hold the merits of the simple authenticated key agreement algorithm.

Critical Dimension for Stable Self-Gravitating Stars in AdS

We study the self-gravitating stars with a linear equation of state, P = aρ, in AdS space, where a is a constant parameter. There exists a critical dimension, beyond which the stars are always stable with any central energy density; below which there exists a maximal mass configuration for a certain central energy density and when the central energy density continues to increase, the configuration becomes unstable. We find that the critical dimension depends on the parameter a, it runs from d = 11.1429 to 10.1291 as a varies from a = 0 to 1. The lowest integer dimension for a dynamically stable self-gravitating configuration should be d = 12 for any a E [0, 1] rather than d = 11, the latter is the case of self-gravitating radiation configurations in AdS space.

Chaotic Image Encryption Algorithm by Correlating Keys with Plaintext

A novel image encryption scheme based on the modified skew tent map was proposed in this paper. In the key generating procedure, the algorithm generates a plaintext-dependent secret keys set. In the encryption process, the diffusion operation with cipher output feedback is introduced. Thus, cipher-irmge is sensitive to both initial keys and plaintext through only one round diffusion operation. The key space is large. As a resuk, the algorithm can effectively resist differential attacks, statistical attacks, brute-force attacks, known plaintext and chosen plaintext attacks. Perforrmnce test and security analysis demonstrates that this algorithm is eficient and reliable, with high potential to be adopted for secure comnmnications.

A Hierarchy of Resolution Systems with Restricted Substitution Rules

The proof system, based on resolution method, has become quite popular in automatic theorem proving, because this method is simple to implement. At present many kinds of extensions for resolution method are known： Resolution with restricted number of variables in disjuncts, resolution over Linear Equations, Cutting planes, etc. For Classical, Intuitionistic and Minimal （Johansson＇s） propositional logics, the authors introduce the family of resolution systems with full substitution rule （SRC, SRI and SRM） and with e-restricted substitution rule （SeRC, SeRf and SeRM）, where the number of substituted formula connectives is bounded by . The authors show that for each of mentioned logic the SR-type system （in tree form） is polynomially equivalent to Frege systems by size, but for every ~＇ 〉 0, Se＋lR-type has exponential speed-up over the SeR-type （in tree form）.

Natural Philosophy, Inventions and Religion in the Correspondence between John Locke and Nicolas Toinard （1678-1704）

The paper examines the copious correspondence between the English philosopher John Locke （1632-1704） and the French intellectual Nicolas Toinard （1629-1706）; Locke made the acquaintance of Toinard in Paris in 1677 or early in 1678, and the latter remained his lifelong friend and most assiduous correspondent. An Orleanais and a devout Catholic, Toinard combined an intense interest in the Scriptures with an enthusiasm for experimental science and inventions of every kind; he introduced Locke to all the French official institutions and to a number of private laboratories. Toinard＇s principal work, Evangeliorum Harmonia Graeco-Latina, was greatly appreciated by Locke for its new method. The paper attempts to explore the bulk of this correspondence in detail, giving an account of the wide range of topics dealt with in the two hundred letters; it is divided into four paragraphs referring, respectively, to the years 1678-1679, 1679-1681, 1681-1686, and1686-1704. The perspective is diachronic; on some occasions, the focus is on a particular topic which is the object of prolonged discussion between the two correspondents. In the conclusion, attention is drawn to the relevance of this correspondence in the context of the 17th century and of Locke＇s philosophical thought.

Natural Philosophy, Inventions and Religion in the Correspondence between John Locke and Nicolas Toinard （1678-1704）

The paper examines the copious correspondence between the English philosopher John Locke （1632-1704） and the French intellectual Nicolas Toinard （1629-1706）; Locke made the acquaintance of Toinard in Paris in 1677 or early in 1678, and the latter remained his lifelong friend and most assiduous correspondent. An Orl6anais and a devout Catholic, Toinard combined an intense interest in the Scriptures with an enthusiasm for experimental science and inventions of every kind; he introduced Locke to all the French official institutions and to a number of private laboratories. Toinard＇s principal work, Evangeliorum Harmonia Graeco-Latina, was greatly appreciated by Locke for its new method. The paper attempts at exploring the bulk of this correspondence in detail, giving an account of the wide range of topics dealt with in the two hundred letters; it is divided into four paragraphs referring, respectively, to the years 1678-1679, 1679-1681, 1681-1686, and1686-1704. The perspective is diachronic; in some occasions, the focus is on a peculiar topic which is the object of prolonged discussion between the two correspondents. In the conclusion, attention is drawn to the relevance of this correspondence in the context of the 17th century and of Locke＇s philosophical thought.

Theorem of Logarithm Expectation and Its Application to Prove Sample Correlation Coefficient as Unbiased Estimate

In statistical theory, a statistic that is function of sample observations is used to estimate distribution parameter. This statistic is called unbiased estimate if its expectation is equal to theoretical parameter. Proving whether or not a statistic is unbiased estimate is very important but this proof may require a lot of efforts when statistic is complicated function. Therefore, this research facilitates this proof by proposing a theorem which states that the expectation of variable x 〉 0 is u if and only if the limit of logarithm expectation of x approaches logarithm of u. In order to make clear of this theorem, the research gives an example of proving correlation coefficient as unbiased estimate by taking advantages of this theorem.

Study of a Single-Phase Series Active Power Filter with Hysteresis Control

The paper presents results from a study of a series-connected single-phase APF （active power filter） with a control system based on hysteresis control, both with and without limitation of the maximum switching frequency. The general purpose of the series APF is to eliminate the low order harmonics of the source （grid） voltage. The filter operation at limited and unlimited maximum switching frequency is explained and it is described using building blocks and time diagrams illustrating the tracking down of the reference curve. Waveforms from the computer simulation and waveforms from the experimental tests of the filter are presented also for the two situations. Operations at limited and unlimited maximum switching frequency are compared regarding the quality of the voltage across the load, the complexity of the implementation of the control system, and the electromagnetic compatibility. The investigation proved capability of the series APF to achieve its general purpose using the hysteresis control methods studied （limited and unlimited switching frequency）.

“元芳”的看法

网络上的营销大师们,被称为推手的,曾经制造过一个又一个的话题,背后推出的是某些产品和某种利益,而我们网民。

我希望……

当郭明义如往常一样再次来到献血站时，被人按住了胳膊对他说：“经过研究，组织决定今天让你回家休息，献血的事，由领导包了。”

怎样的劳动才是快乐的

想一想,当你坐着马拉的火车,吃着火锅还唱着歌,突然枪声一响子弹飞来,顷刻之间马县长就变成了汤师爷,鞍前马后低三下四不说,还赔上了老婆,连跪着挣钱的营生也丢了。

Effect of Qilongtoutong granule on calcitonin gene-related peptide,beta-endorphin, serotonin, dopamine, and noradrenalin in migraine model rats and mice

OBJECTIVE： To study the effect of Qilongtoutong granule （QLTT） on plasma calcitonin gene-related peptide （CGRP）, beta-endorphin （I[3-EP）, 5-HT, dopa- mine （DA）, noradrenalin （NE）, and blood viscosity in migraine model rats and mice. METHODS： Both the acute blood stasis model group and nitroglycerin-induced migraine model group included 60 Sprague-Dawley rats. The reser- pine-reduced model group had 60 Kunming mice. Rats from each test were grouped into normal con- trol group, model group, Zhengtian pill （ZTP） group, and high, moderate, or low-dose QLTT groups. In the acute blood stasis model test, after gavage for 7 days, rats were given 0.8 mL/kg adren- aline hydrochloride subcutaneously twice, and kept in ice water for 5 min. After fasting for 12 h, rats were anesthetized and blood samples were collected for detection of blood viscosity. In the nitro- glycerin-induced migraine group, after gavage for 7 days, rats were intraperitoneally injected nitro- glycerin （10 mg/kg）, and 4 h later, blood samples were collected from postcava for measuring the plasma CGRP and 13-EP levels. In the reserpine-re- duced model test, except the normal control group, mice were administered reserpine （0.25 mg/ kg, i.h.） for 9 days. Mice received intragastric admin- istration from the third day to the ninth day. One hour after the last gavage, blood and brain tissue samples were obtained. Then, blood clotting time and the contents of neurotransmitters were deter- mined. RESULTS： QLTT- （3.6, 1.8, and 0.9 g/kg） and ZTP-treated rats had lower blood viscosity than that in model rats under different shear rates （P〈 0.01）. QLTT- （3.6, 1.8 g/kg） and ZTP-treated rats had significantly lower plasma CGRP levels and higher plasma 13-EP levels than those in model rats （P〈 0.01）. QLTT treatment at dose of 0.9 g/kg had lower plasma CGRP levels as well （P〈0.05）. QLTT- （5.2, 2.6 g/kg） and ZTP-treated mice had longer blood clotting time than that in model mice （P〈0.01）. QLTT- （2.6 g/kg） and ZTP-treated mice had higher plasma serotonin （5-HT） levels than those in model mice （P〈0.05）. CONCLUSION： QLTT-treated animals had lower plasma CGRP level, higher plasma 13-EP, 5-HT, high- er brain tissue 5-HT, NE, DA levels, and lower blood viscosity than those in the migraine model animals.

New sets of low-hit-zone frequency-hopping sequence with optimal maximum periodic partial Hamming correlation

Recently, Chung et al. gave a general method to construct frequency-hopping sequence set(FHS set) with low-hit-zone(LHZ FHS set) by the Cartesian product. In their paper, Theorems 5 and 8 claim that k FHS sets whose maximum periodic Hamming correlation is 0 at the origin result in an LHZ FHS set based on the Cartesian product, and Proposition 4 presented an upper bound of the maximum periodic Hamming correlation of FHSs. However, their statements are imperfect or incorrect. In this paper, we give counterexamples and make corrections to them. Furthermore, based on the Cartesian product, we construct two classes of LHZ FHS sets with optimal maximum periodic partial Hamming correlation property. It is shown that new FHS sets are optimal by the maximum periodic partial Hamming correlation bound of LHZ FHS set.

Clinical study of warm needling moxibustion plus intra-articular injection of sodium hyaluronate for chondromalacia patellae

Objective To observe the therapeutic efficacy of warm needling moxibustion plus intra-articular injection of sodium hyaluronate in treating chondromalacia patellae and its effect on inflammatory factors in knee joint fluid.Methods Sixty-eight patients with chondromalacia patellae were randomized into a control group and an observation group,with 34 cases in each group.The control group was treated with intra-articular injection of sodium hyaluronate,while the observation group was given additional warm needling moxibustion treatment.Before and after treatment,the two groups were scored using Western Ontario and McMaster Universities osteoarthritis index(WOMAC)and visual analog scale(VAS),examined by magnetic resonance imaging(MRI)and determined for the levels of nuclear factor-KB(NF-kB),tumor necrosis factor(TNF)-αand interleukin(IL)-1βin knee joint fluid.Clinical efficacy was estimated after treatment.Results The effective rate was higher in the observation group than in the control group(P<0.05).After treatment,the scores of pain,stiffness and daily activities,as well as the general score of WOMAC declined significantly in both groups(all P<0.05),and were lower in the observation group than in the control group(all P<0.05);the time cost for climbing up and down one staircase and VAS score decreased markedly in both groups(all P<0.05),and were shorter or lower in the observation group than in the control group(both P<0.05);the MRI grading showed no significant change in the control group after intervention(P>0.05),while the grading in the observation group showed notable improvement(P<0.05),and was better than that in the control group(P<0.05);the levels of NF-kB and IL-1βin knee joint fluid dropped significantly in the control group after treatment(both P<0.05),while the levels of NF-kB,TNF-αand IL-1βin knee joint fluid all decreased significantly in the observation group(all P<0.05)and were lower than those in the control group(all P<0.05).Conclusion Warm needling moxibustion plus intra-articular injection of sodium hyaluronate can produce definite efficacy in treating chondromalacia patellae;it can mitigate the clinical symptoms,improve the lesion extent of chondromalacia and down-regulate the levels of NF-kB,TNF-αand IL-1βin knee joint fluid.

Acupotomy versus sodium hyaluronate for treatment of knee osteoarthritis in rabbits

OBJECTIVE: To investigate the possible advantages of acupotomy over sodium hyaluronate injection for the treatment of knee osteoarthritis(KOA).METHODS: Twenty rabbits were divided randomly into four groups(n = 5 in each): a control group,model group, acupotomy group, and sodium hyaluronate injection group. The model, acupotomy,and sodium hyaluronate groups underwent anterior cruciate ligament transection plus partial medial meniscectomy. Sodium hyaluronate injection and acupotomy were administered to the respective groups from weeks 5 to 8, and samples of the tibial plateau and medial condyle of the femur were collected in week 9. Vascular endothelial growth factor(VEGF) expression was assessed in cartilage and subchondral bone by immunohistochemical staining.RESULTS: Articular cartilage degeneration was less pronounced in the acupotomy compared with the model and sodium hyaluronate groups. VEGF expression levels in cartilage and subchondral bone were increased in the model group compared with the control group(P < 0.01), and acupotomy had a more pronounced therapeutic effect than sodium hyaluronate injection(P < 0.01).CONCLUSION: Acupotomy and sodium hyaluronate injection may both reduce degeneration in the cartilage and subchondral bone in KOA based on the results from a rabbit model, but acupotomy improved the histopathology and reduced the VEGF content more effectively than sodium hyaluronate injection, probably by reducing venous stasis and intraosseous pressure. Acupotomy may improve KOA by lowering VEGF.

Effects of source opacity and expansion on two-pion Bose-Einstein correlations

We examine two-pion Bose-Einstein correlations for partially coherent particle-emitting sources within quantum statistical formal- ism, where the sources are treated as classical currents with chaotic and coherent components. The two-pion correlation functions of the partially coherent sources contain a phase which is sensitive to the asymmetry of the source emission function. We investigate the influence of source opacity and expansion in high energy heavy ion collisions on the phase by Monte Carlo calculations. We find that these two physical effects shift the phase from zero. The Gaussian-formula fit results to the simulated two-pion correlation functions indicate that the opaque and expansion effects lead to a smaller interferometry radius Rout and a larger 2 parameter.

A thinned lithosphere beneath coastal area of southeastern China as evidenced by seismic receiver functions

During Mesozoic to Cenozoic time, the large-scale tectono-magmatism had strongly modified the lithosphere beneath the southeastern continent of China, leaving the present-day lithosphere as a new one evolving from the ancient lithosphere that was largely removed and replaced. But this model proposed from geochemical and petrological research is urgently in need of support from seismic observational evidence. In this paper, based on the dataset recorded by the dense stations of two NE ori- ented broadband seismic profiles deployed in the coastal area of southeastern China （SE China）, both P-wave （P-RF） and S-wave （S-RF） receiver functions were isolated. We identified Pls phase converted from the Lithosphere-Asthenosphere Boundary （LAB） in P-RFs of individual stations. Migrated Pls phase indicated a depth of 60-70 km for LAB. Inver- sions/comparisons of P-RF （Pls phase） and S-RF （Sip phase） waveforms together with Ps and Sp imaging for the crust and up- per mantle structure further confirmed this result. P-RF and S-RF migrated images exhibit that a flat LAB is positioned at the depth of 60-70 km spreading along the profile, whereas a distinct structural change of lithospheric base appears at the Min River estuary. Both Ps and PpPs migrated images of P-RFs present an abrupt Moho drop across the Min River fault from south to north, which is consistent with previous result obtained from deep seismic sounding. By taking into consideration other ge- ological and geophysical features such as locally high anomalies of crustal Poisson＇s ratios and heat flow at the Min River es- tuary, we infer that the Min River fault penetrates down to the Moho and may, furthermore, interfere in the deeper lithospheric structure.

REMOVABLE EARS OF 1-EXTENDABLE GRAPHS

Carvalho, Lucchesi and Murty proved that any 1-extendable graph G different from K2 and C2n has at least A（G） edge-disjoint removable ears, and any brick G distinct from K4 and C6 has at least A（G） - 2 removable edges, where A（G） denotes the maximum degree of G. In this paper, we improve the lower bounds for numbers of removable ears and removable edges of 1-extendable graphs. It is proved that any 1-extendable graph G different from K2 and C2n has at least x′（G） edge-disjoint removable ears, and any brick G distinct from Ka and Ce has at least x′（G） - 2 removable edges, where x′（G） denotes the edge-chromatic number of G. Key words 1-extendable graphs, removable ear, removable edge.