川剧高腔《琵琶记》考论

川剧高腔《琵琶记》是川剧高腔的经典剧目,现存的皆为舞台演出本,根据川剧高腔的舞台演出实际及艺术形式,对原本的情节与人物形象都作了改动,使其更适应于舞台演出。

Higher-order mode analysis for SOLEIL-type superconducting cavity

A 499.8 MHz SOLEIL-type superconducting cavity was simulated and designed for the first time in this paper.The higher-order mode(HOM)properties of the cavity were investigated.Two kinds of coaxial HOM couplers were designed.Using 4 L-type and 4 T-type HOM couplers,the longitudinal impedance and the transverse impedances were suppressed to below 3 kΩand 30 kΩ/m,respectivly.The HOM damping requirements of Hefei Advanced Light Facility(HALF)were satisfied.This paper conducted an in-depth study on the radio frequency(RF)design,multipacting optimization,and thermal analysis of these coaxial couplers.Simulation results indicated that under operating acceleration voltage,the optimized couplers does not exhibit multiplicating or thermal breakdown phenomena.The cavity has the potential to reach a higher acceleration gradient.

脱贫攻坚 文化不可缺位

文化在脱贫攻坚中不可缺位,而且其作用和意义是基础性的可持续性的,深情书写脱贫攻坚实践的小说《高腔》和《迎风山上的告别》就充分揭示了文化如何助力脱贫,进而从根本上祛除贫困。文化在脱贫攻坚中要以发挥扶智与强志为出发点,重在"富脑袋";在脱贫攻坚中要着力焕发文化的力量,以文化助力经济社会的高质量发展;政府在文化脱贫攻坚中发挥主导作用,与其无止境地"送文化",不如实实在在地鼓励农民"种文化";要在官产学研中形成对文化扶贫和发展特色文化产业的某些共识。

HIGH-ORDER RUNGE-KUTTA DISCONTINUOUS GALERKIN FINITE ELEMENT METHOD FOR 2-D RESONATOR PROBLEM

The Runge-Kutta discontinuous Galerkin finite element method （RK-DGFEM） is introduced to solve the classical resonator problem in the time domain. DGFEM uses unstructured grid discretization in the space domain and it is explicit in the time domain. Consequently it is a best mixture of FEM and finite volume method （FVM）. RK-DGFEM can obtain local high-order accuracy by using high-order polynomial basis. Numerical experiments of transverse magnetic （TM） wave propagation in a 2-D resonator are performed. A high-order Lagrange polynomial basis is adopted. Numerical results agree well with analytical solution. And different order Lagrange interpolation polynomial basis impacts on simulation result accuracy are discussed. Computational results indicate that the accuracy is evidently improved when the order of interpolation basis is increased. Finally, L^2 errors of different order polynomial basis in RK-DGFEM are presented. Computational results show that L^2 error declines exponentially as the order of basis increases.

Laparoscopic and open splenectomy and azygoportal disconnection for portal hypertension

AIM： To compare the outcomes of laparoscopic and open splenectomy and azygoportal devascularization for portal hypertension. METHODS： From June 2006 to March 2009, laparoscopic splenectomy and azygoportal disconnection （LSD） were performed on 28 patients with cirrhosis, bleeding due to portal hypertension, and secondary hypersplenism. Success was achieved in 26 patients. Demographic, intraoperative, and postoperative variables of the patients were compared. RESULTS： Success of laparoscopic splenectomy and azygoportal disconnection was achieved in all but two patients （7.14%） who required open splenectomy and azygoportal devascularization （OSD）. The operation time was significantly longer in patients undergoing LSD than in those undergoing OSD （235 ± 36 min vs 178 ± 47 rain, P 〈 0.05）. The estimated intraoperative blood loss was much more in patients receiving OSD than in those receiving LSD （420 ± 50 mL vs 200 ± 30 mL, P 〈 0.01）. The proportion of patients undergoing laparoscopic and open splenectomy and azygoportal disconnection who received transfusion of packed red blood cells during or after the operation was 23.08% and 38.46%, respectively （P 〈 0.05）. The time of first oral intake was faster in patients after LSD than in those after OSD （1.5 ± 0.7 d vs 3.5 ± 1.6 d, P 〈 0.05）. The hospital stay of patients after LSD was shorter than that of patients after OSD （6.5 ± 2.3 d vs 11.7 ± 4.5 d, P 〈 0.05）. The pain requiring medication was less severe in patients after LSD than in those after OSD （7.69% vs 73.08%, P 〈 0.001）. The overall complication rate was lower in patients after LSD than in those after OSD （19.23% vs 42.31%, P 〈 0.05）.CONCLUSION： Laparoscopic splenectomy and azygoportal disconnection are the feasible, effective, and safe surgical procedure, and are advantageous over minimally invasive surgery for bleeding portal hypertension and hypersplenism.

The Impact of the South Asia High Bimodality on the Chemical Composition of the Upper Troposphere and Lower Stratosphere

The South Asia High （SAH） is the dominant feature of the circulation in the upper troposphere and lower stratosphere （UTLS） during the boreal summer, and the upper tropospheric anticyclonic circulation extends into the lower stratosphere. The preferred locations of the center of the SAH occur in two different regions, and the center can be located over the Iranian Plateau or over the Tibetan Plateau. This bimodality has an impact on the distribution of chemical constituents in the UTLS region. We analyzed water vapor （H20）, carbon monoxide （CO）, and ozone （03） data derived from the Aura Microwave Limb Sounder （MLS） and total column ozone data from the Ozone Monitoring Instrument （OMI）. For the Iranian Plateau mode of the SAH, the tropospheric tracers exhibited a positive anomaly over the Iranian Plateau and a negative anomaly over the Tibetan Plateau, whereas the stratospheric tracer exhibited a negative and a positive anomaly over the Iranian Plateau and the Tibetan Plateau, respectively. For the Tibetan Plateau mode, however, the distribution of the anomaly was the reverse of that found for the chemical species in the UTLS region. Furthermore, the locations of the extrema within the anomaly seemed to differ across chemical species. The anomaly extrema for H20 occurred in the vicinity of the SAH ridgeline, whereas CO and O3 exhibited a northward shift of 4-8 degrees. These impacts of the variation in the SAH on the chemical constitutes in the UTLS region can be attributed in part to the dynamical structure delineated by the tropopause field and the temperature field at 100 hPa.

A research on high-temperature permittivity and loss tangent of low-loss dielectric by resonant-cavity technique

Resonant-cavity technique was introduced to measure the permittivity and loss tangent of low-loss dielectrics. The dielectric properties at 9-10 GHz are measured accurately at the temperature up to 800 ℃ by the resonant cavity technique. The only electrical parameters that need to be measured are quality factors （Q） and resonant length （L） of resonant cavity loaded and unloaded with dielectric sample. Moreover, the error caused by thermal expansion effect was resolved by error analysis and experimental calibration.

LD Pumped High Efficient Intracavity Frequency-Doubled Green Laser

A laser diode (LD) pumped Q switched high efficient intracavity frequency doubled Nd ∶YAG laser is reported here. The authors have designed an optical coupler and pointed out that the key to increasing harmonic conversion efficiency is to decrease the loss of fundamental wave. In the experiments, a fundamental mode output laser was acquired. When the pumping power was 12 W, 2.6 W average output power at 1 064 nm with AO Q switch was obtained. 2.1 W average output power at 532 nm was obtained with intracavity frequency doubling, and the highest second harmonic conversion efficiency was 82 0 0.

High-Speed Generation of Entangled States for Two Three-Level Atoms

A scheme is presented for generating entangled states for two three-level atoms in a cavity. In the scheme two atoms simultaneously interact with a cavity mode with a small detuning. Thus, the operation time is very short, which is important in view of decoherence.

A new interpretation of TCM pulse diagnosis based on quantum physical model of the human body

Following the quantum theory-based physical model of the human body,a new interpretation of the traditional Chinese medicine(TCM)principle of"Cunkou reads viscera"is presented.Then,a Gaussian pulse wave model as a solution to the Schrodinger equation is shown to accurately describe 19 different pulse shapes,and to quantitatively capture the degree of YinYang attributes of 13 pulse shapes.Furthermore,the model suggests using pulse depth and strength as leading-order quantity and pulse shape as first-order quantity,to characterize the hierarchical resonance between the human body and the environment.The future pulse informatics will focus on determining an individual’s unique quantum human equilibrium state,and diagnose its health state according to the pulse deviation from its equilibrium state,to truly achieve the high level of TCM:"knowing the normal state and reaching the change".

Simulation of High Power Er/Yb Codoped Fiber Linear Cavity Lasers

The performances of high power Er/Yb codoped fiber linear cavity lasers are investigated numerically. The numerical analysis is based on the iterative solution of rate equations for population density of the Er/Yb ions. The behaviors of co-pump and counter-pump methods are contrasted. Dependence of output power on input pump power, output reflectivity, operating wavelength and active fiber length is simulated, respectively. High conversion efficiency Er/Yb laser output is obtained in simulations and experiments.

Duplicated inferior vena cava in a patient undergoing right transumbilical laparoendoscopic single-site (LESS) radical nephrectomy

LaparoEndoscopic Single-site(LESS) renal surgery emerging as a potential alternative to conventional laparoscopy,is technically challenging and the major vascular anomaly may increase the risk of intraoperative haemorrhage.Herein,we present a case of right transumbilical LESS radical nephrectomy which was successfully performed in the presence of double inferior vena cava and duplicated the standard laparoscopic techniques.Most importantly,to bring such an aberrant vascular anatomy to the attention of laparoscopic,especially LESS surgeons with high resolution pictorial illustrations.

STRUCTURE OF SOUTH ASIA HIGH IN THE STRATOSPHERE AND INFLUENCE OF ENSO

The structure of the South Asia High(SAH)in the stratosphere and the influence of ENSO on the SAH are systematically investigated with the long-term ECMWF reanalysis data.The results show that the SAH only exists in low levels of the stratosphere.The maximum intensity of the High is located at around 150 hPa and there is no obvious anti-cyclonic structure above 50 hPa.The axis of the SAH center tends to be northwest slanting from lower levels to higher levels.Further analyses show that the geopotential height and temperature fields of the SAH have dramatic anomalies during El Ni?o years and La Ni?a years. Corresponding to the ENSO,the SAH is weaker(stronger)at the warm(cold)phase.

High power focused-beam microwave hyperthermia combined with intrapleural injection of Shapeilin in the treatment of patients with malignant hydrothorax

Objective:The aim of the study was to evaluate the efficacy and toxicity of high power focused-beam microwave hyperthermia with intrapleural injection of Shapeilin for patients with malignant hydrothorax.Methods:Fifty-eight patients with malignant hydrothorax were divided into group A and group B randomly.All patients underwent indwelling pleural catheter and were treated by intrapleural injection of Shapeilin once three days.Treatment was composed of 3 times injection.Patients of group B received high power focused-beam microwave hyperthermia after injection of Shapeilin.Results:The response rate of group B(79.3%) was higher than that of group A(48.3%)(P < 0.05).Incidence of main adverse reactions,associated with Shapeilin,of two groups including fever and thoracodynia were similar(P > 0.05).Patients of group B didn't encounter severe toxicities of microwave hyperthermia.Conclusion:High power focused-beam microwave hyperthermia combined with intrapleural injection of Shapeilin is effective and tolerable for patients with malignant hydrothorax.

Compact wideband cavity-backed slot antenna

A wideband cavity-backed slot antenna operated in the ultra-high frequency （UHF） band is introduced. The antenna has a compact structure and low profile with the size ratio of the ground plane to the slot only 1.6：1. The measured impedance bandwidth of VSWR≤3 achieves 85.3%, covering a frequency range from 390 MHz to 970 MHz. The measured gain is about 5.5-7.5 dB.

On High Brightness Temperature of Pulsar Giant Pulses

A wide range of events observed at the giant pulses （high energy density, observed localization of giant pulses GPs relative to the average pulse, fine structure of GPs with duration up to some nanoseconds, observed circular polarization of GPs, correlation between the GP phase and the phase of the hard pulsar emission X-ray and gamma） can be explained from the viewpoint that the internal polar gap is a cavity-resonator stimulated by discharges and radiating through the breaks in the magnetosphere. The new results in this field [the electromagnetic （era） waves generation in the gap in the process of longitudinal acceleration in the electric field vanishing on the star surface, high frequency break in the spectrum as a result of switching off this generation, formation in this process a power-low spectrum with a high frequency （hf） break, the possibility determination of pulsar magnetic field by the hf break position, the difference between main pulse and inter pulse mechanism generation, quantization of em tornado rotation in the gap and appearance of the bands in the inter pulse spectrum, influence the high energy density in the gap on pair generation and position of the dead line in pulsars] are added in the intermediate epilogue.

Research on RF Cavity Tolerance of CYCIAE-100

The tolerances of the manufacture and installation errors and Dees deformation caused by gravity in RF cavity of CYCIAE-100 are investigated.Both the analytic treatment and numerical simulation are carried out to give the tolerance of the manufacture and installation errors which disturb the radial and vertical motion of the beam.The Dees deformation caused by gravity leads to axial misalignment of the Dees and then induces the build-up of coherent axial oscillations.However,the calculated results show that the deformation of our Dees is acceptable.

Theoretical and Practical Study on RF Model Cavity of 100MeV H^- Cyclotron

In a cyclotron,the RF cavity is the key device to accelerate ions.The RF cavity design for the 100MeV H^- cyclotron is very complex since the space is narrow and the Dee voltage is 60kV at the center and 120kV at the extraction region.CST MICROWAVE STUDIO is used in the design,and a real model has been made.The test result on the model is in good agreement with the simulation result.

Virtual-photon-induced entanglement with two nitrogen-vacancy centers coupled to a high-Q silica microsphere cavity

We propose a potentially practical scheme for efcient generation of entanglement with two nitrogen-vacancy centers(NVC)coupled to a whispering-gallery mode cavity.By virtue of the virtual-photon-excitation,the entanglement with two separate NVC can be produced in a deterministic way.The required operations are very close to the capabilities of current experimental techniques.The efects of decoherence induced by the cavity decay and the atomic spontaneous decay are also investigated.

Improvement of slow light performance for vertical-cavity surface-emitting laser using coupled cavity structure

We propose a vertical cavity semiconductor emitting laser(VCSEL)using a coupled-cavity(CC)design to broaden the bandwidths of gain and delay spectra.The structure is formed by constructing a passive cavity coupled with the active cavity.By rendering the strength of the two resonant cavities,the increased gain bandwidth by 340%and the increased delay bandwidth by 800%are achieved as compared with the signal-cavity(SC)VCSEL.The wideband spectra present more square-like passband which is expected for slow light system.By using it,a 20 Gbit/s super Gaussian signal is delayed by about 13 ps with high quality.