[en] The eddy current, electromagnetic force and stress are computed using the ANSYS finite element software for the vacuum vessel during the major plasma disruption. The model contains the basic plasma facing components to learn the structure strength of the vacuum vessel under the transient electromagnetic force more accurately. The results indicate that high transient stress on vacuum vessel is brought by the high field plate and the inner plate, but the vacuum vessel is still strong enough to bear the electromagnetic loads. This analysis can help to check and improve the design of plasma facing components. (authors)

[en] Objective: To investigate the CT features of parathyroid adenoma and improve the understanding of the disorder. Methods: CT images and clinical data of 3 cases of parathyroid adenoma proved by clinic and pathology were retrospectively studied. Results: All adenomas were located at esophagotracheal recess (2 on the right side and 1 on left side). The adenomas were oval, well demarcated and homogeneous in density, sized 2 to 4cm (2.3 cm on average) in diameter, the adenoma were strongly enhanced after the contrast agent was given. Fibrecystosteitis were complicated in all 3 cases, while renal stone was found in 1 case. Conclusion: CT can precisely assess the location, shape, size and the complication of parathyroid adenoma, which is valuable for clinical management. (authors)

[en] The in-vessel components worked very well in the past experiment runs and the main goals were achieved. Nevertheless, some damage was found, such as the ablation happened on graphite tiles, and the penetration happened on the water tubes around V area by the energetic particle bombardment as the power flux deposition was elevated locally. To protect the cooling pipes from damage, the outer graphite plate is extended for 20 mm longer than the original one and a special structure using a group of node jacket pipes of 5 mm which are made of molybdenum (Mo) material are designed. According to the theoretical and numerical analysis, we find that the effect of extension of the outer target on flow conductance is acceptable and the Mo material is the much more appropriate material and the thickness of 5 mm can effectively protect the pipe. The following experimental results show that these adopted protecting measures solve the problems well. (authors)

[en] The structure of ITER TF superconducting busbar was introduced. The electromagnetic and mechanical analysis of busbar under operating conditions was performed by means of finite element method, and then the stress and deformation of busbar was checked. The analysis results proved that the structural of busbar and its supports was reliable and safe. (authors)

[en] Highlights: • Er-doped Bi_2_4O_3_1Br_1_0 have been prepared via a one-pot solvothermal method. • Er doping drastically improves the photocatalytic activity of Bi_2_4O_3_1Br_1_0. • The enhanced activity is attributed to effective electron trapping and up-conversion process resulting from Er"3"+. • Holes and super-oxide radicals are main active species. - Abstract: Erbium (Er) doped Bi_2_4O_3_1Br_1_0 samples were successfully prepared by using a solvothermal method. The samples were characterized by XRD, XPS, SEM, TEM, BET, DRS, PL and EIS. The photocatalytic activity was evaluated by the degradation of rhodamine B (RhB) and methyl orange (MO) under visible light irradiation. The result shows that Er dopant induces a significant improvement in the photocatalytic activity. 1.0% Er–Bi_2_4O_3_1Br_1_0 sample exhibits the best photocatalytic performance. The enhanced photocatalytic activity is attributed to the effective trapping of photogenerated electron by Er"3"+ ion and the up-conversion process resulting from Er dopant. In addition, it is found that holes and super-oxide radicals play main role in the photocatalytic degradation of RhB and MO.

[en] Due to the position of ITER ELM coils assembly and its working condition, these coils are subjected to large electromagnetic force and thermal expansion caused by the nuclear heat and ohmic heat. The stress analysis and optimization work within six different design schemes of ELM Coils (ELMC) support are carried out by finite element software ANSYS. The analysis results proof that when the support has the V character configuration alignment of its transversal elliptical through-holes on both ends of top and bottom, the maximum Tresca stress is at the lowest value. The final outcome brings about meaningful reference for ELMC support design. (authors)

[en] Human serum albumin (HSA), the most abundant protein in blood plasma, is an important carrier for many drugs. Understanding HSA-drug interactions is critical in being able to interpret the distribution and acting mechanisms of these drugs, which is particularly important in the case of multi-drug therapy. In this study, we investigated the interactions between HSA and two commonly used antibiotics, gatifloxacin (GFLX) and metronidazole (MET), in Tris–HCl buffer solution (pH=7.4). The efficacy of the individual drugs (GFLX or MET) and the efficacy of a combination of GFLX and MET were measured using fluorescence spectroscopy, UV absorption spectroscopy, and electrochemical methods. Our results demonstrated that GFLX and MET have a synergistic effect. Briefly, one drug decreased the binding stability with HSA of the other drug, thus increasing the concentration of free drug at the action sites. The interaction of drugs with HSA is a process of complex-formation static quenching. There is approximately one binding site between HSA and the drug (GFLX or MET). The binding distance, r, between the drug and HSA was determined on the basis of the theory of Forster-type non-radiative energy transfer. It was shown that the interaction between the two drugs increased the r-value. Using thermodynamic parameters, we found that the binding of drug-HSA interactions is mainly controlled by electrostatic force. Analysis of the synchronous fluorescence spectrum suggested that the interactions between the drugs have important effects on protein conformation. In conclusion, combining GFLX and MET enhances treatment efficacy. Our study provides a basis to understand the mechanism of the interaction of MET, GFLX and HSA in the human body. - Highlights: • The synergistic effects between MET and GFLX were founed. • The type of interaction between the drugs and HSA was identified

[en] By means of numerical method, the magnetic field strength on cryostat feed-through (CFT) busbars for TF magnet at different plasma scenarios was calculated, in order to get the maximum electromagnetic loads. Finite element mechanical analysis was performed to know the stress and deformation of CFT under different working conditions. The results show that the proposed CFT structure with gimbals is properly designed, which can withstand all the electromagnetic, thermal and mechanical loads expected during operation. (authors)

[en] A plateau on the background inflaton potential can lead inflation into the ultraslow-roll (USR) stage, during which the primordial curvature perturbation $\mathcal{R}$ can still remarkably evolve outside the horizon. In this paper, the evolution of the Fourier mode ${\mathcal{R}}_k$ and the resulting power spectrum ${\mathcal{P}}_{\mathcal{R}}$(k) are systematically investigated. It is found that, when a scale crosses the horizon well before or after the USR stage, ${\mathcal{R}}_k$ only revolves around the origin in the complex plane. In contrast, if a scale crosses the horizon around the start of the USR stage, the argument of ${\mathcal{R}}_k$ will be nearly frozen and ${\mathcal{R}}_k$ will have a subsequent linear evolution accordingly, in which it may stop rather near or extremely far away from the origin, naturally explaining the entire growing stage of ${\mathcal{P}}_{\mathcal{R}}$(k) on small scales from the minimum to the peak. Moreover, there is a sharp dip in ${\mathcal{P}}_{\mathcal{R}}$(k), but the lowest point cannot reach 0 exactly. Our work provides a whole picture for ${\mathcal{R}}_k$ and ${\mathcal{P}}_{\mathcal{R}}$(k) in the USR inflation and will help our understanding of the relevant primordial black hole and gravitational wave physics.

[en] We propose a promising scheme to repeatedly decelerate a pulsed molecular beam using a red-detuned quasi-cw semi-Gaussian laser beam (SGB) and an electrostatic storage ring. Using the Monte-Carlo simulation method, we demonstrate that this promising optical Stark decelerator can be used to efficiently slow a pulsed ND₃ molecular beam extracted from a Stark decelerator or a cryogenic reservoir by using a single SGB. The deceleration effect of this scheme on the intensity of the SGB is discussed in detail. (authors)