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| 1 | Effect of early enteral nutrition on postoperative nutritional status and immune function in elderly patients with esophageal cancer or cardiac cancer显示文摘Objective: To explore the effect of early enteral nutrition (EN) on postoperative nutritional status, intestinal permeability, and immune function in elderly patients with esophageal cancer or cardiac cancer. Methods: A total of 96 patients with esophageal cancer or cardiac cancer who underwent surgical treatment in our hospital from June 2007 to December 2010 were enrolled in this study. They were divided into EN group (n=50) and parenteral nutrition (PN) group (n=46) based on the nutrition support modes. The body weight, time to first flatus/defecation, average hospital stay, complications and mortality after the surgery as well as the liver function indicators were recorded and analyzed. Peripheral blood samples were collected on the days 1, 4 and 7 after surgery. The plasma diamine oxidase (DAO) activity and D-lactate level were determined to assess the intestinal permeability. The plasma endotoxin levels were determined using dynamic turbidimetric assay to assess the protective effect of EN on intestinal mucosal barrier. The postoperative blood levels of inflammatory cytokines and immunoglobulins were determined using enzyme- linked immunosorbent assay (ELISA). Results: After the surgery, the time to first flatus/defecation, average hospital stay, and complications were significantly less in the EN group than those in the PN group (P<0.05), whereas the EN group had significantly higher albumin levels than the PN group (P<0.05). On the 7th postoperative day, the DAO activity, D-lactate level and endotoxin contents were significantly lower in the EN group than those in the PN group (all P<0.05). In addition, the EN group had significantly higher IgA, IgG, IgM, and CD4 levels than the PN group (P<0.05) but significantly lower IL-2, IL-6, and TNF-α levels (P<0.05). Conclusions: In elderly patients with esophageal cancer or cardiac cancer, early EN after surgery can effectively improve the nutritional status, protect intestinal mucosal barrier (by reducing plasma endoxins), and enhance the immune | Guiping Yu Guoqiang Chen Bin Huang Wenlong Shao Guangqiao Zeng | 2013 | Chinese Journal of Cancer Research2013，25，3： | 67 |
| 2 | Nonintubated uniportal video-assisted thoracoscopic surgery for primary spontaneous pneumothorax显示文摘Objective:The objective of the current study was to evaluate the feasibility and safety of nonintubated uniportal video-assisted thoracoscopic surgery(VATS) for the management of primary spontaneous pneumothorax(PSP).Methods:From November 2011 to June 2013,32 consecutive patients with PSP were treated by nonintubated uniportal thoracoscopic bullectomy using epidural anaesthesia and sedation without endotracheal intubation.An incision 2 cm in length was made at the 6^(th) intercostal space in the median axillary line.The pleural space was entered by blunt dissection for placement of a soft incision protector.Instruments were then inserted through the incision protector to perform thoracoscopic bullectomy.Data were collected within a minimum follow-up period of 10 months.Results:The average time of surgery was 49.0 min(range,33-65 min).No complications were recorded.The postoperative feeding time was 6 h.The mean postoperative chest tube drainage and hospital stay were19.3 h and 41.6 h,respectively.The postoperative pain was mild for 30 patients(93.75%) and moderate for two patients(6.25%).No recurrences of pneumothorax were observed at follow-up.Conclusions:The initial results indicated that nonintubated uniportal video-assisted thoracoscopic operations are not only technically feasible,but may also be a safe and less invasive alternative for select patients in the management of PSP.This is the first report to include the use of a nonintubated uniportal technique in VATS for such a large number of PSP cases.Further work and development of instruments are needed to define the applications and advantages of this technique. | Shuben Li Fei Cui Jun Liu Xin Xu Wenlong Shao Weiqiang Yin Hanzhang Chen Jianxing He | 2015 | Chinese Journal of Cancer Research2015，27，2： | 15 |
| 3 | Safety and feasibility of video-assisted thoracoscopic surgery for stage IIIA lung cancer显示文摘Objective: The current study was prospectively designed to explore the application of video-assisted thoracoscopic surgery(VATS) radical treatment for patients with stage IIIA lung cancer, with the primary endpoints being the safety and feasibility of this operation and the second endpoints being the survival and complications after the surgery.Methods: A total of 51 patients with radiologically or mediastinoscopically confirmed stage IIIA lung cancer underwent VATS radical treatment, during which the standard pulmonary lobectomy and mediastinal lymph node dissection were performed after pre-operative assessment. The operative time, intraoperative blood loss/complications, postoperative recovery, postoperative complications, and lymph node dissection were recorded and analyzed. This study was regarded as successful if the surgical success rate reached 90% or higher.Results: A total of 51 patients with non-small cell lung cancer(NSCLC) were enrolled in this study from March 2009 to February 2010. The median post-operative follow-up duration was 50.5 months. Of these 51 patients, 41(80.4%) had N2 lymph node metastases. All patients underwent the thoracoscopic surgeries, among whom 50(98%) received pulmonary lobectomy and mediastinal lymph node dissection completely under the thoracoscope, 6 had their incisions extended to about 6 cm due to larger tumor sizes, and 1 had his surgery performed using a 12 cm small incision for handling the adhesions between lymph nodes and blood vessels. No patient was converted to conventional open thoracotomy. No perioperative death was noted. One patient received a second surgery on the second post-operative day due to large drainage(>1,000 mL), and the postoperative recovery was satisfactory. Up to 45 patients(88.2%) did not suffer from any perioperative complication, and 6(11.8%) experienced one or more complications.Conclusions: VATS radical treatment is a safe and feasible treatment for stage IIIA lung cancer. | Wenlong Shao Jun Liu Wehua Liang Hanzhang Chen Shuben Li Weiqiang Yin Xin Zhang Jianxing He | 2014 | Chinese Journal of Cancer Research2014，26，4： | 12 |
| 4 | Sequence Stratigraphy of the Jurassic Coal Measures in Northwestern China显示文摘The sequence stratigraphy of the Jurassic coal measures of northwestern China has been studied based on data from outcrop and borehole sections. Because of the geological background and the diversity of basin types, such as isochronisms of coal seams and recognition of key sequence boundaries, it is rare to summarize and correlate sequence structure and framework. The types and recognition characteristics of the sequence boundaries of the Jurassic coal measures are revealed by comparing climatic characteristics, structural styles and the base level cycle. A total of five third-order sequences and 15 systems tracts have been subdivided and the sequence stratigraphic framework has been reconstructed confirming that the thick coals accumulated in the late stage of transgression system tracts of sequence I (SQ I) and sequence III (SQ III). This idea is of important academic significance for instructing coal resources exploration, and enhancing geological effects of prospecting engineering. It is also of practical significance for guaranteeing construction of the large-scale coal production base in northwestern China, accelerating the westward development of the coal industry stratagem. | WANG Tong SHAO Longyi TIAN Ye LU Jing WANG Wenlong | 2012 | Acta Geologica Sinica(English Edition)2012，86，3： | 11 |
| 5 | The pore structure and fractal characteristics of shales with low thermal maturity from the Yuqia Coalfield, northern Qaidam Basin, northwestern China显示文摘从北 Qaidam 盆的中间的侏罗记 Shimengou 形成的大陆人页岩,西北的中国,因为他们的页岩气体潜力,在最近的年里被调查了。在这研究, 22 件页岩样品的一个总数在 Yuqia 煤田从 YQ-1 地上凿穿被收集,北 Qaidam 盆。样品的全部的器官的碳(TOC ) 内容,毛孔结构参数,和分数维的特征用 TOC 分析,低温度的氮吸附实验,和分数维的分析被调查。结果证明 Shimengou 页岩的平均毛孔尺寸与 10.74 nm 的吝啬的价值从 8.149 nm 变化了到 20.635 nm,它被认为缩放 mesopore。页岩的毛孔主要塑造 inkbottle 、塑造裂缝。沉积环境在控制低成熟页岩的 TOC 内容起一个必要作用,与页岩从的 TOC 价值对半深的湖外形深(平均数:5.23%) 比岸浅的湖外形的那些尤其是高(平均数:0.65%) 。有 2.6122 的一个平均数的从 2.4639 ~ 2.6857 的分数维的尺寸范围,高比海洋的页岩,它显示毛孔出现的那些更不平并且在这些大陆人页岩更复杂的毛孔结构。分数维的尺寸与增加全部的毛孔体积和全部的特定的表面区域,并且与减少的平均毛孔尺寸增加。与在页岩增加 TOC 内容,分数维的尺寸增加第一然后减少,它根据在 TOC 和两个总数之间的趋势,与发生在 2% TOC 内容的最高的价值特定的表面区域和全部的毛孔体积。毛孔结构复杂性和这些低成熟的页岩的毛孔表面粗糙将被沉积环境和 TOC 内容的联合效果控制。 | Haihai HOU Longyi SHAO Yonghong LI Zhen LI Wenlong ZHANG Huaijun WEN | 2018 | Frontiers of Earth Science2018，12，1： | 8 |
| 6 | Nonintubated thoracoscopic lobectomy plus lymph node dissection following segmentectomy for central type pulmonary masses显示文摘IntroductionLung cancer is the most common cancer worldwide.In the United States,it causes more cancer-related deaths than the next four causes(breast cancer,prostate cancer,colon cancer,and pancreatic cancer)of cancer-related mortality combined(1).About 30% of people have already | Wenlong Shao Wei Wang Weiqiang Yin Zhihua Guo Guilin Peng Ying Chen Jianxing He | 2013 | Chinese Journal of Cancer Research2013，25，1： | 7 |
| 7 | Long-term survival outcomes of video-assisted thoracic surgery for patients with non-small cell lung cancer显示文摘Background: Video-assisted thoracic surgery(VATS) has been shown to be a safe alternative to conventional thoracotomy for patients with non-small cell lung cancer(NSCLC). However, popularization of this relatively novel technique has been slow, partly due to concerns about its long-term outcomes. The present study aimed to evaluate the long-term survival outcomes of patients with NSCLC after VATS, and to determine the significant prognostic factors on overall survival.Methods: Consecutive patients diagnosed with NSCLC referred to one institution for VATS were identified from a central database. Patients were treated by either complete-VATS or assisted-VATS, as described in previous studies. A number of baseline patient characteristics, clinicopathologic data and treatment-related factors were analyzed as potential prognostic factors on overall survival.Results: Between January 2000 and December 2007, 1,139 patients with NSCLC who underwent VATS and fulfilled a set of predetermined inclusion criteria were included for analysis. The median age of the entire group was 60 years, with 791 male patients(69%). The median 5-year overall survival for Stage I, II, III and IV disease according to the recently updated TNM classification system were 72.2%, 47.5%, 29.8% and 28.6%, respectively. Female gender, TNM stage, pT status, and type of resection were found to be significant prognostic factors on multivariate analysis.Conclusions: VATS offers a viable alternative to conventional open thoracotomy for selected patients with clinically resectable NSCLC. | Wenlong Shao Xinguo Xiong Hanzhang Chen Jun Liu Weiqiang Yin Shuben Li Xin Xu Xin Zhang Jianxing He | 2014 | Chinese Journal of Cancer Research2014，26，4： | 5 |
| 8 | High and ultra-stable energy storage from all-carbon sodium-ion capacitor with 3D framework carbon as cathode and carbon nanosheet as anode显示文摘Sodium-ion capacitors(SICs)are extremely promising due to the combined merits of high energy-power characteristics and considerable price advantage.However,it is still difficult to achieve high energypower outputs and cycle stability in a typical configuration of the metal-based battery-type anode and activated carbon capacitor-type cathode due to the kinetic mismatching.In this work,a carbon nanosheet(PSCS-600)with large interlayer spacing of 0.41 nm derived from the bio-waste pine cone shell was prepared.Besides,the covalent triazine framework derived carbon(OPDN-CTF-A)was obtained through ionothermal synthesis strategy,exhibiting beneficial hierarchical pores(0.5-6 nm)and high heteroatoms(5.6 at%N,6.6 at%O).On this basis,the all-carbon SICs were fabricated by the integration of PSCS-600 anode and OPDN-CTF-A cathode.The device delivered high energy density 111 Wh kg^(-1),high power output of 14,200 W kg^(-1) and ultra-stable cycling life(~90.7%capacitance retention after 10,000 cycles).This work provides new ideas in fabricating carbon-carbon architectural SICs with high energy storage for practical application. | Fangyuan Hu Siyang Liu Shengming Li Cheng Liu Guipeng Yu Ce Song Wenlong Shao Tianpeng Zhang Xigao Jian | 2021 | Journal of Energy Chemistry2021，30，4： | 2 |
| 9 | Video-Assisted Thoracoscopic Surgery (VATS) for Patients with Solitary Fibrous Tumors of the Pleura显示文摘 | Jun Liu Chengjie Cai Daoyuan Wang Hanzhang Chen Linling Cheng Wenlong Shao Shuben Li Yubao Guan Yingying Gu Jianxing He | 2010 | Journal of Thoracic Oncology2010，，2： | 2 |
| 10 | A Novel Strategy of In Situ Trimerization of Cyano Groups Between the Ti3C2Tx(MXene) Interlayers for High-Energy and High-Power Sodium-Ion Capacitors显示文摘2D MXenes are attractive for energy storage applications because of their high electronic conductivity.However,it is still highly challenging for improving the sluggish sodium(Na)-ion transport kinetics within the MXenes interlayers.Herein,a novel nitrogen-doped Ti3C2Tx MXene was synthesized by introducing the in situ polymeric sodium dicyanamide(Na-dca)to tune the complex terminations and then utilized as intercalation-type pseudocapacitive anode of Na-ion capacitors(NICs).The Na-dca can intercalate into the interlayers of Ti3C2 Tx nanosheets and simultaneously form sodium tricyanomelaminate(Na3TCM)by the catalyst-free trimerization.The as-prepared Ti3C2Tx/Na3TCM exhibits a high N-doping of 5.6 at.%in the form of strong Ti-N bonding and stabilized triazine ring structure.Consequently,coupling Ti3C2Tx/Na3 TCM anode with different mass of activated carbon cathodes,the asymmetric MXene//carbon NICs are assembled.It is able to deliver high energy density(97.6 Wh kg-1),high power output(16.5 kW kg-1),and excellent cycling stability(≈82.6%capacitance retention after 8000 cycles). | Siyang Liu Fangyuan Hu Wenlong Shao Wenshu Zhang Tianpeng Zhang Ce Song Man Yao Hao Huang Xigao Jian | 2020 | Nano-Micro Letters2020，12，10： | 2 |
| 11 | Periostin expression is upregulated and associated with myocardial fibrosis in human failing hearts显示文摘 | Sheng Zhao Hengfang Wu Wenlong Xia Xiangjian Chen Shushu Zhu Shijiang Zhang Yongfeng Shao Wenzhu Ma Di Yang Jinan Zhang | 2013 | Journal of Cardiology2013，，： | 1 |
| 12 | Replacing“Alkyl”with“Aryl”for inducing accessible channels to closed pores as plateau-dominated sodium-ion battery anode显示文摘Hard carbons are promising anodes for sodium-ion batteries.However,there is still considerable controversy regarding the sodium storage behaviors in hard carbons,which are mainly attributed to the varied precursors,confused pyrolysis mechanism,and different characterization methods.Herein,benefiting from the flexible molecular structure of polymers,a series of hard carbons with carefully tunedmicrostructures are fabricated by adjusting the ratio of aryl and alkyl groups in the epoxy resins.The results of dynamic mechanical analysis,insitu Fourier transform infrared spectra,and synchronous thermal gravimetricinfrared spectrum-gas chromatography/mass spectrometry reveal that replacing the alkyl with aryl groups in the resin can enhance the crosslink density,inhibit the degradation and rearrangement process,and further lead to a more disordered microstructure.In addition,it is suggested that accessible channels provided by sufficiently wide interlayer spacing are necessary for closed pore filling.The optimized anode delivers a high capacity of 375 mAh/g in half cell with an initial Coulombic efficiency of 80.61%,and an energy density of 252 Wh/kg is attained in full cell.Finally,a reliable relationship among precursor-pyrolysis mechanism-structure-performance is established,and the sodium storagemechanism of“adsorption-insertion-pore filling”iswell proved. | Wenlong Shao Qi Cao Siyang Liu Tianpeng Zhang Zihui Song Ce Song Zhihuan Weng Xigao Jian Fangyuan Hu | 2022 | SusMat2022，2，3： | 1 |
| 13 | A flexible design strategy to modify Ti3C2Tx MXene surface terminations via nucleophilic substitution for long-life Li-S batteries显示文摘MXene-based materials have gained considerable attention for lithium-sulfur(Li-S)batteries cathode materials due to their superior electric conductivity and high affinitive to polysulfides.However,there are still challenges in modifying the surface functional groups of MXene to further improve the electrochemical performance and increase the structure variety for MXene-based sulfur host.Herein,we report an efficient and flexible nucleophilic substitution(S_(N))strategy to modify the Ti_(3)C_(2)T_(x) surface terminations and purposefully designed Magnolol-modified Ti_(3)C_(2)T_(x)(M-Ti_(3)C_(2)T_(x))as powerful cathode host materials.Benefiting from more C-Ti-O bonds forming and diallyl groups terminations reducing after the dehalogenation and nucleophilic addition reactions,the given M-Ti_(3)C_(2)T_(x) electrode could effectively suppress the lithium polysulfides shuttling via chemisorption and C—S covalent bond formation.Besides,the Magnolol-modified Ti_(3)C_(2)T_(x) significantly accelerates polysulfide redox reaction and reduces the activation energy of Li_(2) S decomposition.As a result,the as-prepared M-Ti_(3)C_(2)T_(x) electrode displays an excellent rate capability and a high reversible capacity of 7.68 mAh cm^(-2)even under 7.2 mg cm^(-2)S-loaded with a low decay rate of 0.07%(from 2 nd cycle).This flexible surface-modified strategy for MXene terminations is expected to be extended to other diverse MXene applications. | Tianpeng Zhang Wenlong Shao Siyang Liu Zihui Song Runyue Mao Xin Jin Xigao Jian Fangyuan Hu | 2022 | Journal of Energy Chemistry2022，31，11： | 1 |
| 14 | The expression and function of microRNA-203 in lung cancer显示文摘 | Jianhua Jin Jianzhong Deng Fang Wang Xiyi Xia Tiefeng Qiu Wenbin Lu Xianwen Li Hua Zhang Xiaoyan Gu Yungang Liu Weiguo Cao Wenlong Shao | 2013 | Tumor Biology2013，，： | 1 |
| 15 | Prognostic impact of MMP‐2 and MMP‐9 expression in pathologic stage IA non‐small cell lung cancer 显示文摘 | Wenlong Shao Wei Wang Xin‐guo Xiong Christopher Cao Tristan D. Yan Guoqin Chen Hanzhang Chen Weiqiang Yin Jun Liu Yingying Gu Mingcong Mo Jianxing He | 2011 | J. Surg. Oncol2011，，： | 1 |
| 16 | Carbon spheres with rational designed surface and secondary particle-piled structures for fast and stable sodium storage显示文摘The electrochemical performance of hard carbon in sodium storage is still limited by its poor cycling stability and rate capability because of the sluggish kinetics process.In this study,we use a simple and effective method to accelerate the kinetics process by engineering the structure of the electrode to promote its surface and near-surface reactions.This goal is realized by the use of slightly aggregated ultra-small carbon spheres.The large specific surface area formed by the small spheres can provide abundant active sites for electrochemical reactions.The abundant mesopores and macropores derived from the secondary particle piled structure of the carbon spheres could facilitate the transport of electrolytes,shorten the diffusion distance of Na^(+)and accommodate the volume expansion during cycling.Benefiting from these unique structure features,PG700-3(carbon spheres with the diameters of 40-60 nm carbonized at 700℃)exhibits high performance for sodium storage.A high reversible capacity of 163 mAh g^(-1) could be delivered at a current density of 1.0 A g^(-1) after 100 cycles.Interestingly,at a current density of 10.0 A g^(-1),the specific capacity of PG700-3 gradually increases to 140 mAh g^(-1) after 10000 cycles,corresponding to a capacity retention of 112%.Given the enhanced kinetics of SIBs reactions,PG700-3 exhibits an excellent rate capability,i.e.,230 and 138 mAh g^(-1) at 0.1 and 5.0 A g^(-1),respectively.This study provides a facile method to attain high performance anode materials for SIBs.The design strategy and improvement mechanism could be extended to other materials for high rate applications. | Wenlong Shao Fangyuan Hu Siyang Liu Tianpeng Zhang Ce Song Zhihuan Weng Jinyan Wang Xigao Jian | 2021 | Journal of Energy Chemistry2021，30，3： | 1 |
| 17 | 空间基因显示文摘Based on typo-morphological studies,this paper proposes the concept of “space gene” from the perspective of urban spatial development theory.Specifically,space gene refers to a unique and relatively stable pattern of spatial organization formed as a result of long-term interaction among the three dimensions:urban space,natural environment,and socio-culture.It conveys distinctive characteristics of different regions and contributes to a unique city identity and a harmonious relationship among the three dimensions.This paper points out that urban planning and design can be localized through the identification-analysis-guidance process of space genes,avoiding both the design scheme that does not respect culture and nature and the practice that a unified model is adopted to create same images in different cities,as well as prompting the directional turn of urban planning and design approaches from space form creation to space gene analysis.It provides an effective design path for a win-win result among urban development,natural protection,and cultural inheritance.Furthermore,the paper discusses the prospect of the Space GenBank Project. | Duan Jin Shao Runqing Lan Wenlong Liu Jinhua Jiang Ying Li Min(Translated) Tang Yan(Proofread) | 2022 | China City Planning Review2022，31，3： | 0 |
| 18 | Sulfur polymerization strategy based on the intrinsic properties of polymers for advanced binder-free and high-sulfur-content Li–S batteries显示文摘Lithium-sulfur(Li-S)batteries are the promising next-generation secondary energy storage systems,because of their advantages of high energy density and environmental friendliness.Among numerous cathode materials,organosulfur polymer materials have received extensive attentions because of their controllable structure and uniform sulfur distribution.However,the sulfur content of most organosulfur polymer cathodes is limited(S content<60%)due to the addition of large amounts of conductive agents and binders,which adversely affects the energy density of Li-S batteries.Herein,a hyperbranched sulfur-rich polymer based on modified polyethyleneimine(Ath-PEI)named carbon nanotubeentangled poly(allyl-terminated hyperbranched ethyleneimine-random-sulfur)(CNT/Ath-PEI@S)was prepared by sulfur polymerization and used as a Li-S battery cathode.The high intrinsic viscosity of Ath-PEI provided considerable adhesion and avoided the addition of PVDF binder,thereby increasing the sulfur content of cathodes to 75%.Moreover,considering the uniform distribution of elemental sulfur by the polymer,the utilization of sulfur was successfully improved,thus improving the rate capability and discharge capacity of the battery.The binder-free,sulfur-rich polymer cathode exhibited ultra-high initial discharge capacity(1520.7 mAh g^(−1) at 0.1 C),and high rate capability(804 mAh g^(−1) at 2.0 C).And cell-level calculations show that the electrode exhibits an initial capacity of 942.3 mAh g^(−1) electrode,which is much higher than those of conventional sulfur-polymer electrodes reported in the literature. | Zihui Song Tianpeng Zhang Siyang Liu Wenlong Shao Wanyuan Jiang Runyue Mao Xigao Jian Fangyuan Hu | 2023 | SusMat2023，3，1： | 0 |
| 19 | Effects of Aluminum Toxicity Induced by Acid Deposition on Pine Forest Ecosystem in Longli of Guizhou Province, Southwestern China显示文摘The effects of acid deposition on pine forest ecosystems in Longli of Guizhou Province, southwestern China are studied using indoor experiments and model simulations. Indoor experiments are designed to explore the aluminum toxicity on pine seedlings, and the long-term soil acidification model(LTSAM) and a terrestrial biogeochemistry model(CENTURY) are used to simulate the influences of acid deposition on pine forest ecosystems. The indoor experiment results of aluminum toxicity show that aluminum ions in solution limit plant growth and acid deposition enhances this effect by facilitating the release of aluminum ions from the soil. Pine seedling biomass and root elongation decrease as the aluminum concentration increases. The results of model simulations show that the soil chemistry varies significantly with different changes in acid deposition. When the acid deposition increases, the pH value in the soil solution decreases and the soil Al^(3+) concentration increases. The increased acid deposition also has negative impacts on the forest ecosystem, i.e., decreases plant biomass, net primary productivity(NPP) and net CO_2 uptake. As a result, the soil organic carbon(SOC) decreases because of the limited supply of decomposition material. Thus acid deposition need be reduced to help protect the forest ecosystems. | ZHANG Jing LYU Zhipeng SHAO Siya LI Fangfang YANG Shengtian SONG Wenlong LI Wei LI Shun-jiang | 2016 | Chinese Geographical Science2016，26，4： | 0 |
| 20 | Optimization of Internal Cluster Target System显示文摘The cluster target system was installed to the due position last year. Several test experiments such as the test of vacuum system, the calibration of the flux and the stability of system have been done after the installation and collimation of cluster internal target. However, there are two problems which hinder us from going further. One is the blocking of nozzle which results in the failure of a long-term system running; the other is the low pumping power for Hydrogen gases in the first stage of the cluster source cham- | Lu Rongchun Cai Xiaohong Shao Caojie Yu Delyang D. K. Toporkov D. K. Nikolenko Ruan Fangfang Zhan Wenlong | 2005 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2005，，1： | 0 |
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