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| 1 | Modification of CaO-based sorbents prepared from calcium acetate for CO_2 capture at high temperature显示文摘CaO-based sorbent is considered to be a promising candidate for capturing CO_2 at high temperature. However,the adsorption capacity of CaO decreases sharply with the increase of the carbonation/calcination cycles. In this study, CaO was derived from calcium acetate(CaAc_2), which was doped with different elements(Mg, Al,Ce, Zr and La) to improve the cyclic stability. The carbonation conversion and cyclic stability of sorbents were tested by thermogravimetric analyzer(TGA). The sorbents were characterized by N_2 isothermal adsorption measurements, scanning electron microscopy(SEM) and X-ray diffraction(XRD). The results showed that the cyclic stabilities of all modified sorbents were improved by doping elements, while the carbonation conversions of sorbents in the 1st cycle were not increased by doping different elements. After 22 cycles, the cyclic stabilities of CaO–Al, CaO–Ce and CaO–La were above 96.2%. After 110 cycles, the cyclic stability of CaO–Al was still as high as 87.1%. Furthermore, the carbonation conversion was closely related to the critical time and specific surface area. | Xiaotong Liu Junfei Shi Liu He Xiaoxun Ma Shisen Xu | 2017 | Chinese Journal of Chemical Engineering2017，25，5： | 7 |
| 2 | CO_(2) capture RD&D proceedings in China Huaneng Group显示文摘CO_(2) capture is an important carbon management route to mitigate the greenhouse gas emission in power sector.In recent years,China Huaneng Group(CHNG)has paid more attention on CO_(2)capture technology development and launched a series of R&D and demonstration projects.In the area of pre-combustion CO_(2) capture technology,GreenGen project initiated by CHNG is the first integrated gasification combined cycle(IGCC)power plant in China.Located in Tianjin,GreenGen aims at the development,demonstration and promotion of a near-zero emissions power plant.An IGCC plant of 250 MW has successfully passed full-scale trial operation.In the next phase,a pre-combustion CO_(2) capture unit will be integrated into the system.Pre-combustion process based on coal chemical process has been developed with lower costs successfully.Regarding to post-combustion CO_(2) capture(PCC),in 2008,CHNG built a 3,000 tpa CO_(2) capture plant,which was the first CO_(2) capture demonstration plant in China.In 2009,CHNG launched a PCC project in Shanghai with a capture capacity of 120,000 tpa CO_(2).Recently,Huaneng Clean Energy Research Institute(CERI)and Powerspan formed a joint venture,Huaneng-CERI-Powerspan(HCP).HCP has completed the technology qualification program to supply carbon capture technology for the CO_(2)capture Mongstad project.Besides these activities mentioned above,feasibility studies and system design for large scale PCC system,have been undertaken by CERI and its partners from Australia,US and Europe. | Jinyi Wang Shisen Xu | 2014 | International Journal of Coal Science & Technology2014，1，1： | 3 |
| 3 | Comparison of results and complications of surgical and Amplatzer device closure of perimembranous ventricular septal defects显示文摘 | Cheng Xunmin Jiang Shisen Gong Jianbin Wang Haidong Wang Lijun | 2006 | International Journal of Cardiology2006，，1： | 2 |
| 4 | W-Band High-Efficiency Waveguide Slot Array Antenna with Low Sidelobe Levels Based on Silicon Micromachining Technology显示文摘A high-efficiency waveguide slot array antenna with low sidelobe level(SLL)is investigated for W-band applications.The silicon micromachining technology is utilized to realize multilayer antenna architecture by three key steps of selective etching,gold plating and Au-Au bonding.The radiating slot based on this technique becomes thick with a minimum thickness of 0.2 mm and accompanies with the decrease of slot’s radiation ability.To overcome this weakness,a stepped radiation cavity is loaded on the slot.The characteristic of cavityloaded slot is investigated to synthesize the low-SLL array antenna.The unequal hybrid corporate feeding network is constructed to achieve sidelobe suppression in the E-plane.A pair of 16×8 low-SLL and high-effciency slot arrays is fashioned and confirmed experimentally.The bandwidth with the radiation effciency higher than 80%is 92.3–96.3 GHz.The SLLs in both E-and H-planes are below−19 dB. | YAO Shisen CHENG Yujian BAI Hang FAN Yong | 2022 | Chinese Journal of Electronics2022，31，4： | 2 |
| 5 | Effect of pre-calcination for modified CaO-based sorbents on multiple carbonation/calcination cycles显示文摘In the present work,the effect of pre-calcination on carbonation conversion and cyclic stability of modi fied CaObased sorbent was investigated by thermogravimetric analyzer(TGA).The modi fied CaO-based sorbents with CaAc_2 as precursor were respectively doped with different elements(Mg,Al,Ce,Zr and La).The speci fic surface area,pore volume and pore size distribution were tested by N_2 isothermal adsorption measurements.The phase compositions of sorbents were characterized by X-ray diffraction(XRD).The results showed that the cyclic stabilities of the sorbents were improved by pre-calcination.The pre-calcination was conducted at 900°C for 5 h in air by the muf fle furnace.With pre-calcination,the cyclic stabilities of sorbents could be as high as 96% after 22 cycles,such as CaO-Al,CaO-Ce and CaO-La.After contact with air,the carbonation conversions of spent sorbents with pre-calcination suddenly increased by about one-sixth due to the change of channel structure by hydration.Both the cyclic stability of sorbent and the durability of reactivation were related to the structural stability of sample,especially the stability of mesopores between 2 nm and 5.5 nm.The present work also provided an easy and low-cost method for reactivating the spent CaO-based sorbents. | Xiaotong Liu Xiaoxun Ma Liu He Shisen Xu | 2017 | Chinese Journal of Chemical Engineering2017，25，10： | 2 |
| 6 | Comparison of resultsand complications of surgical and Amplatzer device closure of per-imembranous ventricular septal defects显示文摘 | XUNMIN C SHISEN J JIANBIN G | 2007 | Int J Cardiol2007，120，1： | 1 |
| 7 | Industrial test and techno-economic analysis of CO2 capture in Huaneng Beijing coal-fired power station显示文摘 | Huang Bin Xu Shisen Gao Shiwang Liu Lianbo | | 0，，87： | 1 |
| 8 | Industrial test and techno-economic analysis of CO 2 capture in Huaneng Beijing coal-fired power station显示文摘 | Bin Huang Shisen Xu Shiwang Gao Lianbo Liu Jiye Tao Hongwei Niu Ming Cai Jian Cheng | 2010 | Applied Energy2010，，11： | 1 |
| 9 | Gender and age differences in the prevalence of coronary artery calcification in 953 Chinese subjects显示文摘 | SHISEN J LEUNG D Y JUERGENS C P | 2005 | Heart Lung Circ2005，14，2： | 1 |
| 10 | Industrial Test and Techno-Economic Analysis of CO2 Capture in Huaneng Beijing Coal-Fired Power Station 显示文摘 | Bin H Shisen X Shiwang G | 2010 | Applied Energy2010，87，： | 1 |
| 11 | Value of long-term electroencephalogram in diagnosing epilepsy显示文摘BACKGROUND: Routine electroencephalogram (EEG) usually cannot accurately reflect the discharge of epileptic patients due to the short examination, and long-term EEG can make up the shortcoming. OBJECTIVE: To comparatively analyze the long-term EEG of epileptic and non-epileptic patients, and investigate the values of long-term EEG in the diagnosis and differential diagnosis of epilepsy. DESIGN: A case-controlled study. SETTING: Ningjin County People's Hospital. PARTICIPANTS: Totally 122 patients with epilepsy (epilepsy group) were selected from the EEG room of Ningjin County People's Hospital from January 2000 to December 2006, including 76 males and 44 females, 7 months to 78 years of age, the disease course ranged from 7 days to 7.5 years, and they all according with the standards for epilepsy set by the International Association for Epilepsy in 1997. Meanwhile, 118 patients with non-epileptic paroxysmal diseases were selected as the control group, including 71 males and 47 females, 2.5-87 years of age, the disease course ranged from 3 days to 7.5 years. Informed contents were obtained from all the subjects. METHODS: OXFORD GATE WAY 2000 16-lead portable EEG recorder was used for 24-hour electroencephalographic procedure. The patients could move normally during the monitoring, their activities, sleeping conditions, time and manifestations of seizures were recorded in details. In the next day, EEG at wake was recorded for 10 minutes, followed by 3-minute hyperventilation and open/close eye induction test, the phases of non-rapid eye movement (Ⅰ-Ⅳ) and rapid eye movement were performed using EEG at sleep according to the international EEG standard. The abnormal rates of EEG epileptic discharge at wake and sleep at different sites were calculated. MAIN OUTCOME MEASURES: Abnormal rate of long-term EEG at wake and sleep in both groups; Epileptic discharge at different sleeping phases in both groups; Abnormal rates of EEG epileptic discharge at wake and sleep at different sites in the epilepsy group. RESULTS: All the 122 patients with epilepsy and 118 patients with paroxysmal diseases were involved in the final analysis of results. ① Comparison of abnormal rate of long-term EEG at wake and sleep: In the epilepsy group, the abnormal rate of EEG at wake was obviously lower than that at sleep (68%, 91%, P < 0.01). In the control group, the abnormal rate of EEG at wake and sleep had no obvious difference (P > 0.05). ② Results of epileptic discharge at different sleeping phases: In the epilepsy group, the epileptic discharge occurred at Ⅰ-Ⅱ phases of sleep cycle in 88.1%, and at Ⅲ-Ⅳ in 11.9%; In the control group, the epileptic discharge occurred at Ⅰ-Ⅱ phases of sleep cycle in 91.7%, and at Ⅲ-Ⅳ phases in 8.3% (1/12). ③ Comparison of the abnormal rates of EEG epileptic discharge at wake and sleep at different sites in the epilepsy group: The abnormal rates of epileptic discharge at frontal lobe and temporal lobe at sleep were obviously higher than those at wake (21.3%, 24.6%; 10.7%, 11.7%, P < 0.01), while there were no obvious differences at wake and sleep at occipital lobe, parietal lobe (P > 0.05). CONCLUSION: Long-term EEG has great importance in the diagnosis and differential diagnosis of epilepsy, especially that it increases the detective rate of discharge by several cycles of sleep derivation. This method also provides important reference for the allocation of epileptic focus. | Shisen Zhang | 2007 | Neural Regeneration Research2007，2，9： | 1 |
| 12 | Preliminary results and operational cost analysis of COz capture at the Huaneng Beijing coal-fired power plant显示文摘 | Huang Bin Xu Shisen | 2010 | Applied Energy2010，87，11： | 1 |
| 13 | Comparison of results and complications of surgical and Amplatzer device closure of perimembranous ventricular septal defects显示文摘 | Xunmin C Shisen J Jianbin G | 2007 | Int J Cardiol2007，120，： | 1 |
| 14 | Comparison of re- sults and complications of surgical and Amplatzer de- vice closure of perimembranous ventricular septal de- fects显示文摘 | Xunmin C Shisen J Jianbin G | 2007 | Int J Cardiol2007，120，1： | 1 |
| 15 | Comparison of results and complications of surgical and Amplatzer device closure of perimembranous ventricular septal defects显示文摘 | Xunmin C Shisen J Jianbin G | 2007 | Int J Cardiol2007，120，： | 1 |
| 16 | An experimental study of dry pulverized-coal gasification in a pressurized airflow bed 显示文摘 | Ren Yongqiang (任永强) Xu Shisen (许世森) Xia Juncang (夏军仓) Li Xiaoyu (李小宇) | 2007 | Journal of Engineering for Thermal Energy and Power (热能动力工程)2007，22，4： | 1 |
| 17 | Industrial Test and Technoeconomic Analysis of COz Capture in Huaneng Beijing Coal - fired Power Station 显示文摘 | Huang Bin Xu Shisen Gao Shiwang | 2010 | Applied Energy2010，，11： | 1 |
| 18 | Industrial test and techno-economic analysis of CO 2 capture in Huaneng Beijing coal-fired power station显示文摘 | Bin Huang Shisen Xu Shiwang Gao Lianbo Liu Jiye Tao Hongwei Niu Ming Cai Jian Cheng | 2010 | Applied Energy2010，，11： | 1 |
| 19 | Noise decomposition and parameter optimization method for high sensitivity fiber optic gyroscope显示文摘A novel random walk coefficient(RWC) model of the interferometric fiber optic gyroscope(IFOG) to decompose fundamental noise sources, namely the shot noise, the excess noise, the thermal noise, and the detection circuit noise, from the overall noise was developed. The coefficients of the model were extracted from the measured RWC instead of by calculating the accurate IFOG parameters, which is simpler and more accurate. The correctness and the accuracy of the model were verified by experiments. Using this model, the RWC of the experimental IFOG was predicted and the quantitative contributions of the noise sources were determined. According to the predicted results, the parameters of the IFOG were optimized. Finally, based on the model, a noise decomposition and parameter optimization method was proposed for high sensitivity IFOG design. | TENG Fei JIN Jing ZHANG ZuChen DU ShiSen SONG NingFang ZHANG ChunXi | 2015 | Science China(Technological Sciences)2015，58，6： | 1 |
| 20 | Study and performance test of 10 kW molten carbonate fuel cell power generation system显示文摘The use of high-temperature fuel cells as a power technology can improve the efficiency of electricity generation and achieve near-zero emissions of carbon dioxide.This work explores the performance of a 10 kW high-temperature molten carbonate fuel cell.The key materials of a single cell were characterized and analyzed using X-ray diffraction and scanning electron microscopy.The results show that the pore size of the key electrode material is 6.5 lm and the matrix material is a-LiAlO_(2).Experimentally,the open circuit voltage of the single cell was found to be 1.23 V.The current density was greater than 100 mA/cm^(2)at an operating voltage of 0.7 V.The 10 kW fuel cell stack comprised 80 single fuel cells with a total area of 2000 cm^(2)and achieved an open circuit voltage of greater than 85 V.The fuel cell stack power and current density could reach 11.7 kW and 104.5 mA/cm2 at an operating voltage of 56 V.The influence and long-term stable operation of the stack were also analyzed and discussed.The successful operation of a 10 kW high-temperature fuel cell promotes the large-scale use of fuel cells and provides a research basis for future investigations of fuel cell capacity enhancement and distributed generation in China. | Chengzhuang Lu Ruiyun Zhang Guanjun Yang Hua Huang Jian Cheng Shisen Xu | 2021 | International Journal of Coal Science & Technology2021，8，3： | 0 |
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