High-j Proton h11/2 and g7/2 Intruder Bands in 113In

Ma Ke Yan,Lu Jing Bin,Ma Ying Jun,Li Jian,Yang Dong,Sun Wu Ji,Wang Hao,Pan Hao Nan,Wang Jia Qi,Yang Qing Yu,Zhang Da Ming,Zhu Li Hua,Wu Xiao Guang,Zheng Yun,Li Cong Bo 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.76 No.12

Excited states of 113In have been populated through the heavy-ion fusion evaporation reaction 110Pd(7Li, 4n)113In. A new band with the configuration of a proton d5/2 orbital is identified. Two ΔI = 2 intruder bands, built on the πh11/2 and the πg7/2 orbitals, have been extended to spins (63/2-)ħ and (55/2+)ħ, respectively. The negative-parity πh11/2 intruder band shows a smooth increase in aligned spin, which is attributed to a strong proton-neutron interaction. The properties of the positive-parity πg7/2 band are discussed based on tilted axis cranking model calculations, and the features of the antimagnetic rotation for this band are shown after backbend. Furthermore, the contributions of the two-shears-like mechanism, the neutron (gd)ν shell and the core rotation are investigated for the positive-parity πg7/2 band.

The Stent-Assisted Coil-Jailing Technique Facilitates Efficient Embolization of Tiny Cerebral Aneurysms

Cong-Hui Li,Xian-Hui Su,Bo Zhang,Yong-Feng Han,Er-Wei Zhang,Lei Yang,Dong-Liang Zhang,Song-Tao Yang,Zhen-Quan Yan,Bu-Lang Gao 대한영상의학회 2014 Korean Journal of Radiology Vol.15 No.6

Objective: Tiny cerebral aneurysms are difficult to embolize because the aneurysm’s sac is too small for a single small coil, and coils within the aneurysm may escape from the confinement of a stent. This study was performed to introduce the stent-assisted coil-jailing technique and to investigate its effect on the coil embolization of tiny intracranial aneurysms. Materials and Methods: Sixteen patients with tiny intracranial aneurysms treated with the stent-assisted coil-jailing technique between January 2011 and December 2013 were retrospectively reviewed and followed-up. Results: All aneurysms were successfully treated with the coil-jailing technique, and at the end of embolization, complete occlusion of the aneurysm was achieved in 9 cases (56.3%), incomplete occlusion in 6 (37.5%), and partial occlusion in 1 (6.3%). Intraprocedural complications included acute thrombosis in one case (6.3%) and re-rupture in another (6.3%). Both complications were managed appropriately with no sequela. Follow-up was performed in all patients for 3–24 months (mean, 7.7 months) after embolization. Complete occlusion was sustained in the 9 aneurysms with initial complete occlusion, progressive thrombosis to complete occlusion occurred in the 6 aneurysms with initial near-complete occlusion, and one aneurysm resulted in progressive thrombosis to complete occlusion after initial partial occlusion. No migration of stents or coils occurred at follow-up as compared with their positions immediately after embolization. At follow-up, all patients had recovered with no sequela. Conclusion: The stent-assisted coil-jailing technique can be an efficient approach for tiny intracranial aneurysms, even though no definite conclusion regarding its safety can be drawn from the current data.

On-line Temperature Monitoring of the GIS Contacts Based on Infrared Sensing Technology

Li, Qingmin,Cong, Haoxi,Xing, Jinyuan,Qi, Bo,Li, Chengrong The Korean Institute of Electrical Engineers 2014 Journal of Electrical Engineering & Technology Vol.9 No.4

Gas insulated switchgear (GIS) is widely used in the power systems, however, the contacts overheating of the inside circuit breaker or disconnector may be a potential cause of developing accidents. As the temperature of the contacts cannot be directly acquired due to existence of the metallic shield, an infrared sensor is adopted to directly measure the temperature of the shield and then the contacts temperature can be indirectly obtained by data fitting, based on which the on-line temperature monitoring technology specifically for GIS contacts based on infrared sensing is proposed in this paper. A real GIS test platform is constructed and experimental studies are carried out to account for the influential factors that affect the accuracy of the infrared temperature measurement. A heat transfer model of the GIS module is also developed, together with experimental studies, the nonlinear temperature relationship among the contacts, the metallic shield and the environment based on a neural network algorithm is established. Finally, an integrated on-line temperature monitoring system for the GIS contacts is developed for on-site applications.

Evalluation of Bilolgy Technology Innovarion Risks Based on Anallytical Hierarchy Process and Fuzzy Mathematics

QUAN Cong-na,LI Jian-min,LI Bo 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.10

Biology technology innovation an important way of improving the competition ability of enterprises and promoting the sustainable development of enterprises, and the success of biology technology innovation can provide a great deal of benefit for them. However, high risks exist during the course of technology innovation, thus rate of sucess is low and the enterprise may suffer great loss from the risks. So it is a key problem of biology technology innovation how to cvaluate exactly the risk of technology innovation, but ambiguity of risk itself and people’s cognition cause more difficulties of risk evaluation. In this paper, the analytical hierarchy process and fuzzy mathematics theory are applied to the evaluation of th biology technology innovation risks, which makes the evaluation from qualitative analysis to quantitative analysis, reduces the impact of the subjective factors and improves the accuracy of risk evaluation.

On-line Temperature Monitoring of the GIS Contacts Based on Infrared Sensing Technology

Qingmin Li,Haoxi Cong,Jinyuan Xing,Bo Qi,Chengrong Li 대한전기학회 2014 Journal of Electrical Engineering & Technology Vol.9 No.4

Gas insulated switchgear (GIS) is widely used in the power systems, however, the contacts overheating of the inside circuit breaker or disconnector may be a potential cause of developing accidents. As the temperature of the contacts cannot be directly acquired due to existence of the metallic shield, an infrared sensor is adopted to directly measure the temperature of the shield and then the contacts temperature can be indirectly obtained by data fitting, based on which the on-line temperature monitoring technology specifically for GIS contacts based on infrared sensing is proposed in this paper. A real GIS test platform is constructed and experimental studies are carried out to account for the influential factors that affect the accuracy of the infrared temperature measurement. A heat transfer model of the GIS module is also developed, together with experimental studies, the nonlinear temperature relationship among the contacts, the metallic shield and the environment based on a neural network algorithm is established. Finally, an integrated on-line temperature monitoring system for the GIS contacts is developed for on-site applications.

Evaluation of Galactomannan Enzyme Immunoassay and Quantitative Real-Time PCR for the Diagnosis of Invasive Pulmonary Aspergillosis in a Rat Model

( Jian Cong Lin ),( Yan Li Xing ),( Wen Ming Xu ),( Ming Li ),( Pang Bo ),( Yuan Yuan Niu ),( Chang Ran Zhang ) 한국미생물 · 생명공학회 2014 Journal of microbiology and biotechnology Vol.24 No.8

Since there is no consensus about the most reliable assays to detect invasive aspergillosis from samples obtained by minimally invasive or noninvasive methods, we compared the efficacy of an enzyme-linked immunosorbent assay (ELISA) for galactomannan (GM) detection and quantitative real-time PCR assay (qRT-PCR) for the diagnosis of invasive pulmonary aspergillosis. Neutropenic, male Sprague-Dawley rats (specific pathogen free; 8 weeks old; weight, 200 ± 20 g) were immunosuppressed with cyclophosphamide and infected with Aspergillus fumigatus intratracheally. Tissue and whole blood samples were harvested on days 1, 3, 5, and 7 post-infection and examined with GM ELISA and qRT-PCR. The A. fumigatus DNA detection sequence was detected in the following number of samples from 12 immunosuppressed, infected rats examined on the scheduled days: day 1 (0/12), day 3 (0/12), day 5 (6/12), and day 7 (8/12) post-infection. The sensitivity and specificity of the qRT-PCR assay was 29.2% and 100%, respectively. Receiver operating characteristic curve (ROC) analysis indicated a Ct (cycle threshold) cut-off value of 15.35, and the area under the curve (AUC) was 0.627. The GM assay detected antigen in sera obtained on day 1 (5/12), day 3 (9/12), day 5 (12/12), and day 7 (12/12) post-infection, and thus had a sensitivity of 79.2% and a specificity of 100%. The ROC of the GM assay indicated that the optimal Ct cut-off value was 1.40 (AUC, 0.919). The GM assay was more sensitive than the qRT-PCR assay in diagnosing invasive pulmonary aspergillosis in rats.

In Vitro and in Vivo Antitumor Evaluation of Berbamine for Lung Cancer Treatment

Hou, Zhi-Bo,Lu, Kai-Jin,Wu, Xiao-Li,Chen, Cong,Huang, Xin-En,Yin, Hai-Tao Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.4

Purpose: Lung cancer, one of the most frequently diagnosed cancers in the world, is characterized by relatively high morbidity and mortality. Berbamine (BER) has been initially reported to exert anti-proliferative effects against a series of cancers. Methods: In this study the in vitro cytotoxicity of BER was measured by MTT assay. In vivo anti-cancer efficacy of BER was assessed in A549 xenografts. Results: Cytotoxicity tests showed dose-dependent cell growth inhibition effects of BER against A549 cells. Moreover, BER significantly reduced the growth of lung cancer in a dose-dependent manner in nude mice with prolonged survival time. Conclusion: Therefore, BER might be in herbal medicine for cancer therapy and further efforts are needed to explore therapeutic strategies.

Corrosion Damage Behavior of Prestressed Rock Bolts under Aggressive Environment

Jiebing Zhu,Xiaowei Wang,Cong Li,Bo Lu 대한토목학회 2019 KSCE JOURNAL OF CIVIL ENGINEERING Vol.23 No.7

The corrosion of prestressed rock bolts (PRBs) has become a serious problem threatening the durability of prestressed anchorage structures during their service. This paper aims to investigate the corrosion damage mechanisms of the free lengths of PRBs subjected to an aggressive environment. During the experiment period, the corrosion behavior of the rock bolts was analyzed considering the influence of prestress under different pH (4, 5, 6, 7, and 8) amounts and several oxygen flow rates (OFR, 0 cm3/min, 40 cm3/min, 80 cm3/min, 120 cm3/min, and 160 cm3/min). Based on the electrochemical analysis, a corrosion rate (CR) development model of the PRBs related to the OFR was developed. The results indicated that the prestress had a great influence on the corrosion of the rock bolts. In the process of corrosion, the PRBs were in an activated state, and no passivation region was formed all the time. The corrosion degree of PRBs increased remarkably with an OFR ranging from 0 cm3/min to 80 cm3/min, and then it reached a threshold value. Additionally, the CR increment was insensitive to the OFR when the pH value was constant. It was observed that the loss rate of the ultimate elongation was larger than the other mechanical properties such as the ultimate tensile load loss rate and the elastic modulus. The effective stress loss of the PRBs under different conditions indicated that more attention is needed to be given to the specimens immersed in solutions with an OFR greater 40 cm3/min and pH lower than 6.

Nuclide assignment for an isolated band observed in the 10B + 114Cd reaction

Yang Qing-Yu,Song Li-Na,Ma Ying-Jun,Yang Dong,Ma Ke-Yan,Wu Xiao-Guang,Zheng Yun,Li Cong-Bo 한국물리학회 2021 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.79 No.3

Three experiments based on the nuclear reactions 14N + 110Pd, 10B + 114Cd and 11B + 114Cd were performed. Coincidences between γ-rays emitted from these reactions were measured with the same detection array which consisted of 14 HPGe detectors. A new band structure was identified using an offline analysis of coincidence data. Because of the isomeric nature of the bandhead, the new band cannot be connected to any known state in any residual nuclei of the used reactions. To assign it to a specific nucleus, we evaluated the experimental population intensities of various known bands in known residual nuclei and investigated the entrance channel effects in the three different experiments. The population intensity patterns of the known bands were observed to exhibit regular systematics. Based on such experimental systematics, we suggest that the most reasonable nuclide assignment for the new band is the 120I nucleus.