The Full-disk Magneto Graph(FMG),a payload onboard the Advanced Space Solar Observatory(ASO-S),will measure the vector magnetic field in the photosphere.The instrument consists of a frontwindow filter,a telescope,an L...The Full-disk Magneto Graph(FMG),a payload onboard the Advanced Space Solar Observatory(ASO-S),will measure the vector magnetic field in the photosphere.The instrument consists of a frontwindow filter,a telescope,an LCVR polarimeter,an image-stabilization system,a seven-stage tunable Lyot filter,a CMOS camera with 4096×4096 pixels and a pair of calibration/focus wheels.In this paper,we describe the design of the FMG instrument and provide a summary of test observations carried out with the FMG prototype.展开更多
The porous copper foil material has the advantages of ultralight and ultra-thin,and can prevent dangers such as thermal runaway and battery fire,which could be regarded as a prospective material for lithium battery ca...The porous copper foil material has the advantages of ultralight and ultra-thin,and can prevent dangers such as thermal runaway and battery fire,which could be regarded as a prospective material for lithium battery cathodes.Here,a porous copper foil with a three-dimensional(3D)pore structure was synthesized by alkali and acid etching.展开更多
This paper is devoted to the primary spectro-polarimetric observation performed at the New Vacuum Solar Telescope(NVST)of China since 2017,and our aim is to precisely evaluate the real polarimetric accuracy and sensit...This paper is devoted to the primary spectro-polarimetric observation performed at the New Vacuum Solar Telescope(NVST)of China since 2017,and our aim is to precisely evaluate the real polarimetric accuracy and sensitivity of this polarimetry by using full Stokes spectro-polarimetric observations of the photospheric line Fe I 532.4 nm.In the work,we briefly describe the salient characteristic of the NVST as a polarimeter in terms of technology and then characterize its instrumental polarization based on the operation in 2017 and 2019.It is verified that the calibration method utilizing the instrumental polarization calibration unit(ICU)is stable and credible.The calibration accuracy can reach up to 3×10^-3.Based on the scientific observation of NOAA Active Region 12645 on 2017 April 5,we estimate that the residual cross-talk from Stokes I to Stokes Q,U and V,after the instrumental polarization calibration,is about 4×10^-3 on average,which is consistent with the calibration accuracy and close to the photon noise.The polarimetric sensitivity(i.e.,the detection limit)for polarized light is of the order of 10-3 with an integration time over 20 s.Slow modulation rate is indeed an issue for the present system.The present NVST polarimeter is expected to be integrated with a high-order adaptive optics system and a field scanner to realize 2 D vector magnetic field measurements in the following instrumentation update.展开更多
Objective To observe the efficacy of scalp acupuncture combined with oral administration of ènì Tāng（呃逆汤, Hiccup Decoction） for treatment of intractable hiccup. Methods One hundred patients with intrac...Objective To observe the efficacy of scalp acupuncture combined with oral administration of ènì Tāng（呃逆汤, Hiccup Decoction） for treatment of intractable hiccup. Methods One hundred patients with intractable hiccup were divided into treatment group（acupuncture combined with herb decoction group） and control group（western medicine group） according to the random number table method with 50 patients in each group. In treatment group, scalp acupuncture was conducted in the gastric area and thoracic area of patients, and Hiccup Decoction was taken orally. In control group, anisodamine（654-2） was injected intramuscularly in the dosage of l0 mg. The treatment was conducted for once a day in each group, and treatment for three consecutive times was needed. The number of times and the frequency of hiccup were observed after each treatment, and the results were compared. The standard of therapeutic effectiveness was evaluated by the number of hiccups decreased. Results In treatment group, the total cure rate was 54%, and the total effective rate was 84%, in control group, the total cure rate was 32%, and the total effective rate was 66%. According to the comparison between the two groups in the cure rate and total effective rate, the differences were statistically significant（both P〈0.05）. After the first treatment, there was no statistical difference according to the comparison between the two groups in the cure rate and total effective rate（both P〈0.05）, after the second treatment, the differences were statistically significant according to the comparison between the two groups in the cure rate and total effective rate（both P〈0.05）, and the efficacy in treatment group was obviously superior to that in control group, after the third treatment, there was no statistical difference according to the comparison between the two groups in the cure rate and total effective rate（both P〈0.05）. Conclusion In the one course of treatment, the efficacy of acupuncture combined with herb de展开更多
基金China Aerospace Science and Technology Corporation, the NO.771 InstituteChina Academy of Engineering Physics+4 种基金Changchun Institute of Optics, Fine Mechanics and Physics, CASNational Space Science Center, CASShanghai Engineering Center for Microsatellites, CASPurple Mountain Observatory, CASsupported by Grants:XDA15320102, 11427901 and XDA15052200
文摘The Full-disk Magneto Graph(FMG),a payload onboard the Advanced Space Solar Observatory(ASO-S),will measure the vector magnetic field in the photosphere.The instrument consists of a frontwindow filter,a telescope,an LCVR polarimeter,an image-stabilization system,a seven-stage tunable Lyot filter,a CMOS camera with 4096×4096 pixels and a pair of calibration/focus wheels.In this paper,we describe the design of the FMG instrument and provide a summary of test observations carried out with the FMG prototype.
基金financially supported by the National Natural Science Foundation of China(No.22365017)Key Laboratory of Development and Application of Ionic Rare Earth Resource,Key R&D project of Jiangxi Province(Nos.20224BBE51045 and 20212BBE51018)+2 种基金Jiangxi Education Department Project(No.GJJ210831)Jiangxi Postgraduate Innovation Special Fund(No.YC2022-B181)the Key Research and Development Project of Jiangxi Province(No.20223BBH80010)。
文摘The porous copper foil material has the advantages of ultralight and ultra-thin,and can prevent dangers such as thermal runaway and battery fire,which could be regarded as a prospective material for lithium battery cathodes.Here,a porous copper foil with a three-dimensional(3D)pore structure was synthesized by alkali and acid etching.
基金supported by the National Natural Science Foundation of China(Grant Nos.11873091,11773040,11773072 and 11373044)。
文摘This paper is devoted to the primary spectro-polarimetric observation performed at the New Vacuum Solar Telescope(NVST)of China since 2017,and our aim is to precisely evaluate the real polarimetric accuracy and sensitivity of this polarimetry by using full Stokes spectro-polarimetric observations of the photospheric line Fe I 532.4 nm.In the work,we briefly describe the salient characteristic of the NVST as a polarimeter in terms of technology and then characterize its instrumental polarization based on the operation in 2017 and 2019.It is verified that the calibration method utilizing the instrumental polarization calibration unit(ICU)is stable and credible.The calibration accuracy can reach up to 3×10^-3.Based on the scientific observation of NOAA Active Region 12645 on 2017 April 5,we estimate that the residual cross-talk from Stokes I to Stokes Q,U and V,after the instrumental polarization calibration,is about 4×10^-3 on average,which is consistent with the calibration accuracy and close to the photon noise.The polarimetric sensitivity(i.e.,the detection limit)for polarized light is of the order of 10-3 with an integration time over 20 s.Slow modulation rate is indeed an issue for the present system.The present NVST polarimeter is expected to be integrated with a high-order adaptive optics system and a field scanner to realize 2 D vector magnetic field measurements in the following instrumentation update.
基金Supported by:Shanghai Municipal Commission of Health and Family Planning:ZJ 2016008
文摘Objective To observe the efficacy of scalp acupuncture combined with oral administration of ènì Tāng（呃逆汤, Hiccup Decoction） for treatment of intractable hiccup. Methods One hundred patients with intractable hiccup were divided into treatment group（acupuncture combined with herb decoction group） and control group（western medicine group） according to the random number table method with 50 patients in each group. In treatment group, scalp acupuncture was conducted in the gastric area and thoracic area of patients, and Hiccup Decoction was taken orally. In control group, anisodamine（654-2） was injected intramuscularly in the dosage of l0 mg. The treatment was conducted for once a day in each group, and treatment for three consecutive times was needed. The number of times and the frequency of hiccup were observed after each treatment, and the results were compared. The standard of therapeutic effectiveness was evaluated by the number of hiccups decreased. Results In treatment group, the total cure rate was 54%, and the total effective rate was 84%, in control group, the total cure rate was 32%, and the total effective rate was 66%. According to the comparison between the two groups in the cure rate and total effective rate, the differences were statistically significant（both P〈0.05）. After the first treatment, there was no statistical difference according to the comparison between the two groups in the cure rate and total effective rate（both P〈0.05）, after the second treatment, the differences were statistically significant according to the comparison between the two groups in the cure rate and total effective rate（both P〈0.05）, and the efficacy in treatment group was obviously superior to that in control group, after the third treatment, there was no statistical difference according to the comparison between the two groups in the cure rate and total effective rate（both P〈0.05）. Conclusion In the one course of treatment, the efficacy of acupuncture combined with herb de
