建立语料库

痛点

1. 开始写论文时，不知道如何表达
2. 对于已有框架填充的修改
3. 语法错误
4. 参考文献对应知识点的引用的问题

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results如何描述

基于Profs Sang，进行深入分析

目标

• 1. 明确paragraphy的架构
• 2. 学习使用句式与关联词
• 3. 表述fig的方法
• 4. 积累相关的知识
• 5. 提取框架

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步骤

1. 通读文章（ing）

分析标准

• 句频分析
• 表述积累

理论基础：对于问题的表述，存在完备的表述体系。想掌握一套优秀的完备体系，逐渐内化，修改。个性化的基础是想有一套完备的框架，从而进行自由的修改

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对于一个新的领域，每个人都是从零开始。不会就去学，学就向婴儿蹒跚学步一样，慢慢来，不放过一个细节。

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Results and discussion

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C. F. Sang2020

results

1. the effects of the divertor plasma on the

the effects of ** on **

2. 内外不对称性（SFD对脱吧阈值的影响）
3. 实验和模拟表明，SFD显著降低脱靶阈值（play an important role in）

play an important role in

4. on the other hand, (温度降低与辐射增加的关系)
5. In this section，对比SFD和SD在相同边界边界条件下的不同上游密度的表现（a density scan has been performed）

a density scan has been performed

6. the total radiation power and the peak T_{e} on the outer divertor targets and the radiation power in different regions as functions of are shown in Fig. 3.

a and b as functions of are shown in
the definition of each region is shown in Fig. 1 with different colors representing different regions
xx is shown in xx with different colors representing

7. it can be seen that...(the heat flux to the target reduce significantly, due to the enhancement of the total radiated power, as shown in Fig. 3(a))

it can be seen that...

8. it should be noted that (when point, T_{e} falls below 1eV)

it should be noted that

9. however, (with increasing ne the radiation power due to carbon increasing before detachment and reduce after detachment)

however, with increasing A increasing

9. as ne increases further the power radiated in the SOL(rises significantly after detachment)

as ... increases...

10. the divertor plasma has a significant influence on the main SOL, (especially in detachment)

11. One may notice first increases, then decreases with ne

12. the possible reason is that(in the low density, the change-exchange neutral power loss in the core region is strong)

13. and it reduces as ne increases, leading to the rise of **

14. as ne further increases, the SOL radiation becomes important, resulting in the detachment of **

15. this is the main reason for higher peak te at the outer divertor than at the inner target at low density

16. as ne increase.

17. Further investigations are still required in the future work

18. to study the effect of divertor on the upstream plasma, we choose tree upstream density cases by fixing the core boundary

19. the ne at inner and outer midplane, and also ne and te at inner and outer targets are shown in Fig. *

20. it can be seen that as the upstream plasma density increases, ** at the targets increase significantly, and the corresponding Te reduce strongly.

21. the outer divertor has higher ne and low Te than the inner divertor, indicating that the outer divertor achieves detachment first due to the in-out asymmetry

22. the flux rollover is usually taken as a sign of plasma detachment. The DIII-D experiment shows the flux rollover occurs when Te is about 2eV. thus, we define the plasma detachment as Te<2eV in this work.

23. in the case of **,...

24. the ** at the inner target is about ** and ** respectively.

25. the ** is partially detachment near the strike point while the outer divertor is attached.

26. the ** and ** are almost identical as shown in Fig. *, showing that the influence of the divertor plasma on the upstream SOL is small in this regime

27. ditto ... ditto

28. illustrating that the inner divertor is fully detached and the outer divertor enters the partial detachment.

29. it can be seen that ne at the pedestal and inner SOL is higher than at the outer midplane,

30. and the inner divertor plasma has a significant impact on the HFS upstream during detachment.

31. This is in agreement with the experimental and simulation observations of ASDEX Upgrade.

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31. to help to understand how the divertor plasma affects the upstream plasma, the 2D contour of Te, radiation density, q_{||} and ionization rate for both SD and SFD are shown in Fig. 4
32. it can be seen that for low upstream density case, high-density plasma is mainly located close to the inner divertor target.
33. As the upstream increases, the high-density front gradually moves toward the X-point and then moves upstream as shown in Fig. *
34. The D atom ionization region is mainly at the target for the low-density case
35. as upstream density increases, the ionization region on the HFS moves gradually from the divertor target to the SOL and the strong ionization appears in the HFS SOL halfway up to the midplane as illustrated in Fig. *
36. the reason is that in going from density 1 to density 3， the peak Te at the inner divertor reduces from 13eV to 2eV, see Fig. 3(g-i)
37. and the low-temperature plasma cannot ionize the neutral particles at the target, resulting in the ionization region moving away from the target.
38. This explains why more D atoms escaping from the divertor due to drop in Te, which leads to enhancement of the D ionization rate as well as ne in the HFS SOL.

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39. Moreover, lower Te also leads to higher ne due to pressure conservation

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40. This is agreement with ASEDX Upgrade and JET experiments

41. Fig. 5 shows the parallel D+ flux density distributions for the three density cases.

42. it can be seen that for the lower upstream density case, the direction of the D+ flux points to the inner target on the HFS.

43. As the upstream density increases, the D+ flux reverses in the flux tube near the separatrix, as illustrated in Fig. 5(a).

44. the radial distribution of the parallel D+ flux at the IMP for the different density cases is shown in Fig. 5(b)

45. the strongest D+ flux reversal occurs near the separatrix due to the higher ionization rate here.

46. It can be deduced that flow reversal is the main reason for the influence of the divertor plasma on the upstream plasma as observed in Fig. 3.

47. For density 3, the parallel flux density and velocity of D+ along the second flux tube outside the separatrix (r-r_{sep} =0.07cm)

48. point from the inner target to the outer target as shown in Fig. 6.

49. the parallel velocity behaves similarly to the D+ flux density

50. in this case, i.e., with strong detachment at the inner divertor target and partial detachment at the outer divertor

51. the plasma temperature is below the ionization threshold and the neutral particles produced by recycling cannot be ionized in the vicinity of the target, resulting in transport of the neutral particles from inner divertor to the inner SOL

52. the plasma density in the divertor region is high, forming a strong density gradient between the inner divertor and the inboard SOL, and the ionization source exceeds the ion loss to the divertor

53. the reversal starts in the strong ionization region, and is gradually drained away by diffusion of particles into neighboring flux tubes radially further out where the plasma flows toward the divertor only.

54. this explains why the reversal is close to the separatrix

55. it should be noted that the total ion flux (the radial integration of each flux tube) in each divertor is still toward its target.

conclusion

1. SOLPS simulations have shown the strong influence of the divertor plasma on the main SOL and pedestal election density, especially during highly dissipative conditions.
2. by comparing the inner and outer diverters for different upstream plasma density conditions, it is shown that the inner divertor has a significant impact on the HFS SOL plasma and a high-density front occurs for the high-density case.
3. the main reason for this is that the inner divertor can achieve plasma detachment easier than outer divertor and this promotes flow reversal, as well as the ionization front, moving upstream
4. after full detachment, the radiation front also moves into the main SOL as the upstream density increases and the radiated power in the SOL tends to become dominant. 5. Modeling the open and closed divertor by changing the divertor baffling only, keeping all other input parameters identical, we confirm that divertor closure has a significant effect in the SOL and pedestal plasma.
5. at the OMP the closed divertor has higher ne outside the separatrix and lower ne inside the separatrix, which is a combined effect of the D+ ion and C ion densities.
6. moreover, the open divertor has higher core fueling than the closed divertor.
7. the strongly baffled divertor has better fuel and impurity neutral screening than the open divertor.
8. this lead to a reduction of C impurity density and D ionization for the closed divertor, which agreement with experiments
9. the strong baffling can increase the neutral density in the divertor region and produce a strong ionization source.
10. when the ionization source is stronger than the target removal rate the flow reversal occurs.
11. the reversal flow has a significant effect in the SOL as indicated in Fig. 8(b).
12. The plasma is maintained by the core fueling and recycled particles from the divertor targets, and the strong ionization in the closed divertor can replenish more fuel than in the open divertor.
    14.therefore, the closed divertor requires less core fueling than the open divertor.
13. Moreover, the simulation results reveal that the divertor closure has a great impact on the in/out asymmetry, increasing the closure of the outer divertor can reduce the asymmetry remarkably.