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| 1 | Microbiota modulates gut immunity and promotes baculovirus infection in Helicoverpa armigera显示文摘Baculoviruses are natural enemies of agricultural and forest insect pests and play an important role in biological pest control.Oral infection by baculovirus in the insect midgut is necessary for establishing systemic infection and eventually killing the insect.Since the insect midgut continuously encounters microbiota,the gut microbiota could affect baculovirus infection.Here,we demonstrated that gut microbiota modulates immune responses and promotes baculovirus infection in the cotton bollworm,Helicoverpa armigera.After oral infection,numerous host immunity-related genes including genes encoding Toll and immune deficiency(IMD)pathway components were upregulated in the midgut.Elimination of the gut microbiota significantly increased the resistance to viral infection in H.armigera.Quantitative real-time reverse transcription polymerase chain reaction and proteomic analysis showed that downregulation of the antiviral factor prophenoloxidase(PPO)could be mediated by microbiota during infection.It implied that midgut microbiota diminishes the expression of PPO to facilitate viral infection in H.armigera.Our findings revealed that the microbiota plays an important role in modulating the resistance of H.armigera to baculovirus infection,providing new insights in applying biopesticide. | Chuanfei Yuan Longsheng Xing Manli Wang Zhihong Hu Zhen Zou | 2021 | Insect Science2021，28，6： | 1 |
| 2 | 有机电子器件中的纳米接触实现高效空穴注入显示文摘电极与半导体之间的欧姆接触是实现高效有机电子器件的关键.本文通过将DNA/表面活性剂复合物与双极性电子聚合物混合,获得了一种可印刷的杂化界面传输材料.研究发现DNA/表面活性剂复合物与导电聚合物之间可以进行有效的电荷转移,而纳米尺寸的发光二极管证明传输材料与导电聚合物间的纳米接触有助于电荷的传输和注入.该新型材料可应用于高效有机发光二极管、太阳能电池和场效应晶体管. | Qingzhen Bian Chiara Musumeci Chuanfei Wang reas Skallberg Yongzhen Chen Zhangjun Hu EPeter Münger Kajsa Uvdal Mats Fahlman Olle Inganas | 2021 | Science Bulletin2021，66，9： | 1 |
| 3 | The hydrogenmigration in cryogenic tubes of superconductive accelerator with gas source显示文摘Background In superconductive linear accelerator,the performance and stability can be impacted by gas adsorbed on cryogenic surfaces adversely.The cryogenic devices usually work at 4.2 K or 1.9 K and are refrigerated by normal or super fluid liquid helium,respectively.Purpose The purpose of this paper is to study the character of gas migration in cryogenic tubes.Method Adsorption coefficient for hydrogen at 4.2 K is measured by experimental study.Then,a gas migration model is established based on the experimental results to depict the hydrogen migration process in cryogenic tubes.Results The experimental results and model analysis indicated that at cryogenic temperature(4.2 K),adsorption coefficient for hydrogen is very close to 1,which is several orders higher than the adsorption coefficient at room temperature,resulting in a unique pressure distribution pattern in cryogenic tubes when compared with the pressure distribution in room temperature tubes.Conclusions At 4.2 K or 1.9 K,the gas migration process is obviously different from the process at room temperature and is significantly affected by the gas adsorption on the cryogenic surfaces.The model established in this article can be applied not only to hydrogen migration in cryogenic tubes but also to other gas migration in tubes with high adsorption coefficient. | Chuanfei Hu Feng Bai Wanhong Guo Yukui Yin Yugang Zhao Junhui Zhang | 2019 | Radiation Detection Technology and Methods2019，3，2： | 0 |
| 4 | 6-31 Progress of Cryogenic System in 2014显示文摘During the year of 2014, the work of cryogenic group was mainly focused on operation of refrigerator system,test of TCM1, design and machining of HCM6. At the end of 2014 refrigerator system has achieved closed-loopoperation and recycle of helium gas, which did great contribution to superconducting cavity and superconductingmagnet test. Since the refrigerator was put into use(Fig. 1), it has operated continuously and reliably for more than5 110 h, reached helium lique ed capacity 270 L/h at 850 W. | Zhang Junhui Guo Xiaohong Jin Tao Zhao Yugang Niu Xiaofei Wan Yuqin Su Hailin Han Yanning Yang Yonghui Bai Feng Jiang Ziyun Hu Chuanfei Zhang Peng Guo Wanhong Yin Yukui Liu Zuohui Hu Yongping Wang Xianjin | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 5 | 6-32 Design and Operation of Cryogenic Vertical Testing System for Superconducting Cavity显示文摘The superconducting accelerating segment in injectorⅡof Accelerator Driven Sub-critical System(ADS) uses superconductingcavities whose frequency are 162.5 MHz. The vertical performance of superconducting cavity devicesmust be tested at liquid helium temperature(2, 4.2 K) before being assembled in cryostat. To meet the runninggoal of the 0 25 MeV linac system, it is necessary to build a set of cryogenic testing system for superconductingcavity, which is used to test the performance of the superconducting cavity and whether cavity meet the designgoal. | Bai Feng Su Hailin Zhang Junhui Guo Xiaohong Hu Chuanfei Niu Xiaofei Zhang Peng Zhao Yugang Yin Yukui Guo Wanhong Liu Zuohui Wang Xianjin Hu Yongping | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 6 | 2017年低温系恒温器系统显示文摘ADS Injector-II linear accelerator is mainly composed of ECR ion source,LEBT,RFQ,MEBT,a superconducting accelerating segment and HEBT.The superconducting accelerating segment is composed of two HWR010 cavity cryomodules,a taper cavity cryomodule and a spoke cavity cryomodule(CM1+CM2+CM3+CM4),which has accelerated the proton beam to 25 MeV in Jun.2017. | Zhang Junhui Guo Xiaohong Bai Feng Wan Yuqin Hu Chuanfei Niu Xiaofei Zhang Peng Zhao Yugang Yin Yukui Guo Wanhong Hu Jianjun Wang Xianjin Han Yanning | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
| 7 | 低温表面气体吸附实验研究显示文摘In superconducting linear accelerator(LINAC),the performance and stability can be adversely impacted by gas adsorbed on cryogenic surfaces.Adsorption capacity and peculiarity of adsorption process on cryogenic niobium material surface are measured in order to improve the performance and stability of superconductive accelerator.The results and analysis(Fig.1-4)in this paper indicate:firstly,the saturated vapor pressure of hydrogen and helium is much higher than the maximum allowable value for superconductive LINAC operation,secondly,at cryogenic temperature,such as 4 K,it is the gas adsorption amount that determines the pressure,thirdly,pressure will not arise until single monolayer accomplished,it may take a long time. | Hu Chuanfei Zhang Junhui | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
| 8 | 6-5 Operation of HWRs for C-ADS Injector显示文摘There are two types of HWR cavities have been developed in IMP for C-ADS Injector.HWR010s have been used to accelerate proton from 2.1 MeV to 10 MeV.There are 12 HWR010s assembled in two CMs.The taper type HWR015s have been used to accelerate proton from 10MeV to 18.5 MeV.There are 5 HWRs assembled in the third CM.Proton beam has been accelerated to 26 MeV by HWR010,HWR015 and Spoke021 in June 2017.The beam has been accelerated to 18.5 MeV by HWR010 and HWR015.The CMs in the tunnel are shown in Fig.1. | Yue Weiming Zhang Shenghu Li Yongming Chang Wei Jiang Tiancai Zhang Shengxue Gao Zheng Wang Ruoxue Huang Shichun Pan Feng Chen Long Li Chunlong Song Yukun Guo Hao Xiong Pingran Cong Zhang Tan Teng Wan Yuqin Niu Xiaofei Bai Feng Hu Chuanfei Zhang Peng Liu Lubei Huang Yulu Zhao Yugang Guo Xiaohong You Zhiming Zhang Junhui Huang Guirong He Yuan | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 9 | 6 - 7 Helium Recovery and Purification System显示文摘 | Niu Xiaofei Zhang Junhui Guo Xiaohong Han Yanning Tan Fengguang Hu Chuanfei Zhang Peng | 2012 | IMP & HIRFL Annual Report2012，，1： | 0 |
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