[en] Within a multi-phase transport (AMPT) model with string melting scenario, the transverse momentum imbalance between prompt photon and jet is studied in Pb + Pb collisions at √(s_NN)=2.76 TeV. Jet loses more energy in more central collisions due to strong partonic interactions between jet parton shower and partonic matter, which is more significant than due to hadronic interactions only. The hadronization and final-state hadronic interactions have little influences on the imbalance. The imbalance ratio x_jγ is sensitive to both production position and passing direction of γ-jet, which provides an opportunity to do detail γ-jet tomography on the formed partonic matter by selecting different x_jγ ranges. It is also proposed that γ-hadron azimuthal correlation associated with photon + jet is a probe to see the medium responses to different γ-jet production configurations

[en] Within a multi-phase transport (AMPT) model with the string melting mechanism and imported initial electric quadrupole moment, the difference between the elliptic flow of positive and negative pions is calculated. The slope parameter r of the linear dependence of Δv_2=v_2(π"−)−v_2(π"+) on A_c_h=(N"+−N"−)/(N"++N"−) is yielded owing to the parton cascade, which converts the initial electric quadrupole distribution into the final charge-dependent elliptic flow. The slope parameter r is found to be increased by the hadronization given by the coalescence, and decreased by the resonance decays. The slope parameter r is very sensitive to both the initial electric quadrupole percentage and centrality bin and consequently a helpful constraint on the quadrupole moment of the chiral magnetic wave is obtained for Au + Au collisions at the top RHIC energy

[en] Objective: To study the clinical significance of changes of serum TNF-α and β₂-m levels after radiation therapy in patients with nasopharyngeal cancer. Methods: Serum TNF-β and β₂-m levels were measured with RIA in 31 patients with naso- pharyngeal cancer both before and after radiation therapy as well as in 35 controls. Results: Before radiation therapy the serum TNF - β₂ and β₂-m levels in patients were significantly higher than those in the controls (P<0.01), Three months after completion of radiation therapy, the serum TNF-α and β₂-m levels dropped markedly and were not significantly different from those in controls (P > 0.05). Conclusion: Changes of serum TNF-β and β₂-m contents after radiation therapy might be of prognostic value in patients with nasopharyngeal cancer. (authors)

[en] The features and problems with ASME in-service inspection qualification requirements and the ENIQ methodology approach were discussed. The approach in ASME XI, Appendix Ⅷ is generic qualification, which focuses on blind trial and the statistical significance of the performance demonstration. The benefits of the ENIQ methodology are its flexibility and the requirement that qualification is a combination of practical trials and technical justification. The major disadvantage of the ENIQ approach is the requirement for scarce personnel skills in the physics and practice of inspection. Then the qualification approach of in-service inspection in China is discussed based on the experience of Spanish methodology approach. (authors)

[en] Highlights: • It is a new passively actuated differential thermal expansion heat switch for CCD. • Automatic adjusting function decreases difficulty of manufacture and assembly. • Good operational stability and high ratio of effective thermal resistance. • A fairly good agreement between theoretical analysis and experiment results. - Abstract: Thermal control for Charge Converse Device (CCD) is a key issue in space optical remote sensor. Heat switch is appropriate for heat dissipation of CCD. This paper provides thermal characterization of a new passively actuated differential thermal expansion heat switch (DTE-HS) with automatic adjusting function for CCD thermal control in space optical remote sensor. The radiation thermal resistance is developed to study how the radiation parameters affect the thermal resistance of the heat switch. The heat conduction thermal resistance is developed to describe the thermal characterization of the DTE-HS. A prototype of the DTE-HS is manufactured and tested. The experimental results are consistent well with the theoretical results.

[en] In the past 20 years, with the utilization of nuclear technology in China, air cleaning techniques were developed to prevent the environment from pollution caused by radioactive materials and to ensure the safety of occupational personnel. The technical developments involve many fields including the manufacture of filter media and adsorbents; the application of filters and iodine adsorbers and the testing of them; the improvement of instruments and methods for aerosol concentration measurement; the retention of radioactive noble gases; and others. As nuclear power stations are to be built in China, nuclear air cleaning will be advancing more rapidly. Many programs have been scheduled, such as producing other types of adsorbers, moisture separators, nuclear grade HEPA filters that have excellent performance to resist adverse circumstances, and in-place testing for units of ventilation systems in nuclear facilities. These programs are discussed

[en] During the ball milling experiment in the early stage, the stirring speed of different materials was determined. Under different milling time, the ball milling process of MOX powder was studied respectively in this paper. The granularity of milled MOX mixed powders was tested by laser granularity detector. The variations of plutonium distribution homogeneity in milled MOX mixed powders were tested by a coulometric meter. The results showed that the milling effect was poor when the milling time was too short. The particle size of powder was large. The homogeneity is poor. With the extension of milling time, the granularity of powder decreased, and the distribution of plutonium was more homogenized. When the ball milling time was too long, the particle would increase after the powder particle size reached the limit granularity. The homogeneity of plutonium was not obvious and tended to be homogenized. Under the existing experimental conditions, the most reasonable ball milling process for MOX raw powder was milling at 600 r/min for 2.5 hours. For the calcined MOX mixed powders, the most reasonable ball milling process was 800 r/min milling 3 hours. The granularity of the powder obtained by the above process was less than 1 micron. The plutonium distribution homogeneity was greater than or equal to 98%. The above indexes met the requirements of quality control. (authors)

[en] On Shenguang III laser facility, 32 laser beams were symmetrically injected a gas-filled hohlraum to create plasma situation which is close to the ignition condition. An X-ray framing camera on the polar station and an X-ray streak camera near the pole were utilized to obtain the temporal and spacial evolution X-ray images of the plasma from the hohlraum wall and near the laser entrance hole (LEH), which were used to analyse the LEH closure feature of the hohlraum with various LEH size. The experimental results clearly demonstrated the evolution of laser spot motion, plasma expanding near the LEH and closure of the LEH, which supplied the foundation to optimize the LEH dimension. (authors)

[en] Epilepsy is a chronic paroxysmal neurological disorder that caused by abnormal discharge of neurons. Because of its repetitive seizures, complex and various clinical manifestation, the structure and function of the brain both have been severely damaged. In recent years, with the rapid development of functional imaging technology, functional magnetic resonance imaging (fMRI) has been widely used in the evaluation of epilepsy. Particularly the resting-state fMRI alone or combining with EEG plays an important role in revealing the characteristics of the changes in complex network, structure network and functional network. It helps us to understand deeply about the pathogenesis of epilepsy. (authors)

[en] After the Fukushima nuclear plant accident, China raised the nuclear safety standards, now NNSA review through the technical plan ' Hualong One”. It means Chinese nuclear power development walking to new period. With the development of new technology and the improvement of security requirements, nuclear plant construction and installation faces new situation and challenges. On the other hand, the new generation workers formally take on the main force of construction and installation, and the new generation workers themselves have the strong era characteristic and personal needs. In conclusion, nuclear construction management faces new problems. The safety and quality of project will directly impact the future of the nuclear power industry, and human factors is the most direct and important link. The paper researches the nuclear plant construction workers, analysis their particularity to understand their needs and value, and then put forward the corresponding management and suggestions to improvement. The advices can improve project management, implement industry value of workers, inheritance and protect the nuclear safety culture, control the quality and safety of nuclear power plant construction. (authors)