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31篇 您的检索式:作者名="Linan Chen"
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1Ammonia volatilization from a Chinese cabbage field under different nitrogen treatments in the Taihu Lake Basin, China显示文摘Ammonia(NH_3) volatilization is a major pathway of nitrogen(N) loss from soil-crop systems.As vegetable cultivation is one of the most important agricultural land uses worldwide,a deeper understanding of NH_3 volatilization is necessary in vegetable production systems.We therefore conducted a 3-year(2010–2012) field experiment to characterize NH_3 volatilization and evaluate the effect of different N fertilizer treatments on this process during the growth period of Chinese cabbage.Ammonia volatilization rate,rainfall,soil water content,p H,and soil NH_4^+were measured during the growth period.The results showed that NH_3 volatilization was significantly and positively correlated to topsoil p H and NH4+concentration.Climate factors and fertilization method also significantly affected NH_3 volatilization.Specifically,organic fertilizer(OF) increased NH_3 volatilization by 11.77%–18.46%,compared to conventional fertilizer(CF,urea),while organic–inorganic compound fertilizer(OIF) reduced NH_3 volatilization by 8.82%–12.67% compared to CF.Furthermore,slow-release fertilizers had significantly positive effects on controlling NH_3 volatilization,with a 60.73%–68.80% reduction for sulfur-coated urea(SCU),a 71.85%–78.97% reduction for biological Carbon Power~® urea(BCU),and a 77.66%–83.12% reduction for bulk-blend controlled-release fertilizer(BBCRF)relative to CF.This study provides much needed baseline information,which will help in fertilizer choice and management practices to reduce NH_3 volatilization and encourage the development of new strategies for vegetable planting.Linan Shan Yunfeng He Jie Chen Qian Huang Hongcai Wang 2015Journal of Environmental Sciences2015,27,12:28
2Microbial community structures in an integrated two-phase anaerobic bioreactor fed by fruit vegetable wastes and wheat straw显示文摘The microbial community structures in an integrated two-phase anaerobic reactor(ITPAR)were investigated by 16S r DNA clone library technology.The 75 L reactor was designed with a 25 L rotating acidogenic unit at the top and a 50 L conventional upflow methanogenic unit at the bottom,with a recirculation connected to the two units.The reactor had been operated for 21 stages to co-digest fruit/vegetable wastes and wheat straw,which showed a very good biogas production and decomposition of cellulosic materials.The results showed that many kinds of cellulose and glycan decomposition bacteria related with Bacteroidales,Clostridiales and Syntrophobacterales were dominated in the reactor,with more bacteria community diversities in the acidogenic unit.The methanogens were mostly related with Methanosaeta,Methanosarcina,Methanoculleus,Methanospirillum and Methanobacterium;the predominating genus Methanosaeta,accounting for 40.5%,54.2%,73.6%and 78.7%in four samples from top to bottom,indicated a major methanogenesis pathway by acetoclastic methanogenesis in the methanogenic unit.The beta diversity indexes illustrated a more similar distribution of bacterial communities than that of methanogens between acidogenic unit and methanogenic unit.The differentiation of methanogenic community composition in two phases,as well as pH values and volatile fatty acid(VFA)concentrations confirmed the phase separation of the ITPAR.Overall,the results of this study demonstrated that the special designing of ITPAR maintained a sufficient number of methanogens,more diverse communities and stronger syntrophic associations among microorganisms,which made two phase anaerobic digestion of cellulosic materials more efficient.Chong Wang Jiane Zuo Xiaojie Chen Wei Xing Linan Xing Peng Li Xiangyang Lu Chao Li 2014Journal of Environmental Sciences2014,26,12:6
3Dynamic games for secure and resilient control system design显示文摘Modern control systems are featured by their hierarchical structure composed of cyber,physical and human layers.The intricate dependencies among multiple layers and units of modern control systems require an integrated framework to address cross-layer design issues related to security and resilience challenges.To this end,game theory provides a bottom-up modeling paradigm to capture the strategic interactions among multiple components of the complex system and enables a holistic view to understand and design cyber-physical-human control systems.In this review,we first provide a multi-layer perspective toward increasingly complex and integrated control systems and then introduce several variants of dynamic games for modeling different layers of control systems.We present game-theoretic methods for understanding the fundamental tradeoffs of robustness,security and resilience and developing a cross-layer approach to enhance the system performance in various adversarial environments.This review also includes three quintessential research problems that represent three research directions where dynamic game approaches can bridge between multiple research areas and make significant contributions to the design of modern control systems.The paper is concluded with a discussion on emerging areas of research that crosscut dynamic games and control systems.Yunhan Huang Juntao Chen Linan Huang Quanyan Zhu 2020National Science Review2020,7,7:2
4Efficacy of percutaneous ethanol injection in the adjuvant treatment of hepatocellular carcinoma after TACE显示文摘在 transcatheter 以后在肝细胞癌(HCC ) 的辅佐疗法评估经皮的乙醇注射(PEI ) 的功效的目的动脉的 chemoembolization (不作声) 由进步(TTP ) 的时间的主要终点。学习人口与不能实行的 HCC (中国分类系统 IIA/IIB ) 由 73 个连续病人组成了的方法。在他们之中, 22 个病人被对待与不作声并且 PEI (试验性的组) ,和剩余的 51 与仅仅被对待不作声(控制组) ,然后进行的时间(TTP ) 和这二个组的全面幸存(OS ) 被分析。结果中部的 TTP 是 10 个月[95% 信心间隔(CI ) , 7.9 12.1 个月] 在试验性的组和 6 个月(95% CI, 4.7 7.3 个月) 在控制组。第 3-month,6-mon,并且 1 年的前进免费幸存(PFS ) 率是分别地 77.3% , 63.6% ,和 48.1% 在试验性的组,并且 76.5% , 42.15% ,和 24.8% 在控制组。试验性的组的 TTP 比控制组的显著地长(P < 0.05 ) 。中部的幸存时期是 17 个月[95% 信心间隔(CI ) , 11 23 个月] 试验性的组和 12 个月(95% CI, 10 14 个月) 控制组(P > 0.05 ) 。结论与单身者相比不作声,联合不作声, PEI 能显然推迟疾病进步并且延长 HCC 病人的幸存。Mingzhi Hao Hailan Lin Youhong Shen Linan Tang Ruoyuan Yan Jianxiong Zheng Ojzhong Chen Jing Chen Zhougui Wu 2009The Chinese-German Journal of Clinical Oncology2009,8,2:2
5Effects of land-use and climate change on sediment and nutrient retention in Guizhou,China显示文摘Introduction:Sediment and nutrient retention have significant impacts on agricultural productivity and water quality.Obvious changes of climate and land-use have deeply affected freshwater ecosystem services in the last several decades.Nevertheless,it is unclear what the differences are in the impact of climate and land-use changes on freshwater ecosystem services.Outcomes:The impacts of climate and land-use change on sediment and nutrient retention(two essential freshwater ecosystem services)were evaluated with the help of the Integrated Valuation of Environmental Services and Tradeoffs(InVEST)model.The results from the study area suggest a decreasing trend in sediment and nutrient retention from 1995 to 2015 when climate and land-use were changed simultaneously.A decreasing trend in sediment retention and an increasing trend in nutrient retention were presented under scenario A(climate change from 1995 to 2015 with land-use unchanged),while the sediment exported and nutrient retention exhibited a decreasing trend except sediment retained under scenario B(land-use change from 1995 to 2015 with unchanged climate).Rainfall erosivity and soil erodibility were more sensitive to the output of sediment retention,while retention efficiency produced more of an effect on nutrient retention.Discussion and Conclusion:Climate change played a dominant role in the change in sediment retention,while land-use change had a more significant effect on nutrient retention change than climate change.The results of this study provide explicitinformation for land-use managers to reduce the negative effects associated with sediment and nutrient retention.Huiqing Han Jianqiang Yang Geng Ma Yue Liu Linan Zhang Siying Chen Shuliang Ma 2020Ecosystem Health and Sustainability2020,6,1:1
6Development and Cross - Cultural Application of a Specific Instrument to Measure Entrepre- neurial Intentions 显示文摘LInAN F CHEN Y W 2009Entrepreneurship Theory and Prac- tice2009,33,3:1
7Paraquat induces dopaminergic dysfunction and proteasome impairment in DJ-1-deficient mice显示文摘Wonsuk Yang Linan Chen Yunmin Ding 2007Hum Mol Genet2007,16,23:1
8Development and cross-cultural application of a specific instrument to measure entrepreneurial intentions 显示文摘Linan F and Chen Y W 2009Entrepreneurship Theory and Practice2009,33,:1
9Development and Cross-- cultural Application of a Specific Instrument to Measure Entrepre --neurial Intentions 显示文摘LINAN F CHEN Y W 2009Entrepreneurship Theory and Practice2009,33,3:1
10Effects of Plant Spacing,Row Spacing and Seedling Number Allocation on the Growth Dynamics of Different Populations of Two Types of Rice Varieties显示文摘[Objectives]This study was conducted to construct high-yielding,high-quality,and high-light-efficiency population structures of different types of rice varieties.[Methods]The effects of plant spacing,row spacing and seedling number allocation on stems and tillers,leaf area and dynamic traits of high-yielding rice populations(more than 9750 kg/hm^(2))and low-yielding populations(less than 9750 kg/hm^(2))were studied by two kinds of representative rice varieties with different tiller ability and panicle sizes in cold regions.[Results]Decreasing the plant and row spacing and increasing the number of planted seedlings per hole advanced the heading date and made the number of stems and tillers in the population increase.The impact on the super rice variety with fewer tillers and heavier panicles was greater than that of conventional variety with more tillers and lighter panicles.The stems and tillers of the high-yielding high-quality populations grew steadily in the early stage of development,until an appropriate number of panicles was reached at the critical leaf age for productive tillers(June 25),and the peak seedlings should appear in the jointing stage(July 9)with a small number(that value of Longjing 21,the super rice variety with fewer tillers and heavier panicles,was about 1.2 times the expected panicle number,and that of the conventional variety with more tillers and lighter panicles,Kongyu 131,was about 1.1 times the expected panicle number).The populations gradually declined since then,until reaching an appropriate number of panicles at the heading stage.The high-yielding high-quality populations had a higher leaf area index at the heading stage.The value of Longjing 21,the super rice variety with fewer tiller and heavier panicles,reached about 6.0,and that of Kongyu 131,the conventional variety with more tillers and lighter panicles,reached about 4.5.The values decreased thereafter.At the maturation stage,the leaf area index of Longjing 21 remained above 2.5,and that of Kongyu 131 remained above 2.0.[Conclusions]This study has an important guiding role and significance for their high-yielding and high-quality supporting cultivation in cold regions.Jingfang XUE Guangshan ZHAO Shuqiang CHEN Xiaodong DU Limin YANG Haixin ZHAO Yongsheng CAI Tong ZHOU Linan WANG Mingxu ZHOU 2021Agricultural Biotechnology2021,10,2:1
11Thrombotic microangiopathy-like disorder after living-donor liver transplantation:A single-center experience in Japan显示文摘AIM:To investigate thrombotic microangiopathy (TMA)in liver transplantion,because TMA is an infrequent but life-threatening complication in the transplantation field. METHODS:A total of 206 patients who underwent living-donor liver transplantation (LDLT) were evaluated,and the TMA-like disorder (TMALD) occurred in seven recipients. RESULTS:These TMALD recipients showed poor outcomes in comparison with other 199 recipients. Although two TMALD recipients successfully recovered,the other five recipients finally died despite intensive treatments including repeated plasma exchange (PE) and re-transplantation. Histopathological analysis of liver biopsies after LDLT revealed obvious differences according to the outcomes. Qualitative analysis of antibodies against a disintegrin-like domain and metalloproteinase with thrombospondin type 1 motifs (ADAMTS-13) were negative in all patients. The fragmentation of red cells,the microhemorrhagic macules and the platelet counts were early markers for the suspicion of TMALD after LDLT. Although the absolute values of von Willebrand factor (vWF) and ADAMTS-13 did not necessarily reflect TMALD,the vWF/ADAMTS-13 ratio had a clear diagnostic value in all cases. The establishment of adequate treatments for TMALD,such as PE for ADAMTS-13 replenishment or treatments against inhibitory antibodies,must be decided according to each case. CONCLUSION:The optimal induction of adequate therapies based on early recognition of TMALD by the reliable markers may confer a large advantage for TMALD after LDLT.Tomohide Hori Toshimi Kaido Fumitaka Oike Yasuhiro Ogura Kohei Ogawa Yukihide Yonekawa Koichiro Hata Yoshiya Kawaguchi Mikiko Ueda Akira Mori Yasutsugu Takada Hiroto Egawa Atsushi Yoshizawa Shinji Uemoto Hajime Segawa Kimiko Yurugi Takuma Kato Kanako Saito Linan Wan Mie Torii Feng Chen Ann-Marie T Baine Lindsay B Gardner 2011World Journal of Gastroenterology2011,17,14:1
12Analysis of Lymph Node Metastases of 1,526 Cases with Thoracic Esophageal and Cardiac Carcinomas: A Random Sampling Report froni the Fourth Hospital of Hebei Medical University from 1996 to 2004显示文摘OBJECTIVE To summarize the regular pattern and state oflymph node metastasis of patients with esophageal and cardiaccarcinomas,so as to analyze factors influencing lymph nodemetastasis.METHODS Clinical data collected from 1,526 thoracicesophageal and cardiac carcinoma patients who were admitted inthe Fourth Hospital of Hebei Medical University during a periodfrom January 1996 to December 2004,were randomly selectedand an Access Database of the patient's information was set up.Eight clinico-pathologic factors,including the patient's age,tumorlocation and size,pathological classification,the depth of tumorinvasion,vascular tumor embolus (VTE),the state of surroundingorgan encroachment and the status of tumor residues,wereidentified.A correlation between these factors and metastases wasstatistically analyzed using SPSS13.0 software.RESULTS Lymph node metastatic sites from esophagealcarcinomas included the thoracic and abdominal cavity.Lymphnode metastasis from the superior esophageal carcinomasmainly occurred in the neck and thoracic cavity.There was atwo-way lymph node metastasis in the patients with the middleesophageal carcinoma.The inferior esophageal carcinomas mainlymetastasized to the paraesophageal,paragastric cardia,and leftgastric artery lymph nodes.The rate and degree of the metastasisfrom the inferior esophageal carcinomas were significantly highercompared to those of the superior and the middle esophagealcarcinomas (P<0.0125).The degree of abdominal lymph node metastasis fromcarcinomas of the gastric cardia was significantly higher comparedwith that of esophageal carcinomas.In the group with carcinomaof the gastric cardia,the rate and degree of the lymph nodemetastases in the paragastric cardia and left gastric artery weresignificantly higher compared to the group with esophagealcarcinoma (P<0.05).Paraesophageal lymph node metastasis fromcarcinomas of the gastric cardia in the thoracic cavity frequentlyoccurred,too,and the degree of the metastasis was similar to thatof esophageal carcinoma.There was no significant difference inthe rate and degree of the paraesophageal lymph-node metastasisbetween the group with carcinoma of the gastric cardia comparedto those with esophageal carcinoma (P>0.05).Multifactoriallogistic regression analysis showed that the tumor size,depth oftumor encroachment,VTE,and tumor residues could all bringabout obvious impact on lymph-node metastases (P<0.05).CONCLUSION Lymph node metastasis from superioresophageal carcinomas mainly occurs in the neck and thoraciccavity.The middle esophageal carcinomas presented a two-waylymph-node metastasis (both the upwards and the downwards),and the lymph node metastasis from inferior esophagealcarcinomas mainly occurred in the thoracic and abdominal cavities.The metastases of carcinoma of the gastriccardia were most commonly found in the abdominalcavity,with frequent paraesophageal lymph-nodemetastasis.The sufficient attention should be paidto neck lymph node clearance in cases of esophagealcarcinoma.What is of the greatest concern is theclearance of the left gastric artery lymph nodes,andalso in cases of gastric cardia carcinoma,clearance,the paraesophageal lymph nodes.With an increasein the tumor size and depth of tumor encroachment,and occurrence of VTE and tumor residual cells,therisk of lymph node metastasis is significantly raised (P<0.05).Wei Liu Xishan Hao Yong Chen Haixin Li Shijie Wang Peizhong Wang Hng Jin Liyun Guan Qian Fan Linan Song Yumin Ping Xianli Meng Rui Wang Junfeng Liu Xiaoling Wang 2008Chinese Journal of Clinical Oncology2008,5,6:1
13Development and cross - cultural application of a specific instrument to measure entrepreneurial intentions 显示文摘Linan Francisco Chen Yi - Wen 2009Entrepreneurship : Theory & Practice2009,33,3:1
14Development and Cross-Cultural Application of a Specific Instrument toMeasure Entrepreneurial Intentions 显示文摘LINAN F CHEN Y W 2009Entrepre-neurship Theory and Practice2009,33,3:1
15Activation of Notch1 signaling by marrow-derived mesenchymal stem cells through cell–cell contact inhibits proliferation of hepatic stellate cells显示文摘Si Chen linan Xu Nan Lin Weidong Pan Kunpeng Hu Ruiyun Xu 2011Life Sciences2011,,25:1
16Development and Cross- Cultural Application of a Specific Instrument Tomeasure Entrepreneurial lntentions显示文摘LINAN F CHEN Y W 2009Entrepre- neurship Theory and Practice2009,33,3:1
17Development and Cross- Cultural Application of a Specific Instrument to Measure Entrepreneurial Intentions显示文摘LINAN F CHEN Y W 2009Journal of Entrepreneurship and Practice2009,33,3:1
18A Research on the training Strategy of Young Teachers显示文摘Over the years,colleges and universities have been implementing innovative talent training. It is a very important and significant work that how to explore and investigate the training strategy of young university teachers from the perspective of innovation education.Linan Zhang Chao Chen 2018好家长2018,,66:0
19Experimental Study on Water Saving of Large-scale Mechanized Paddy Field Production Process in Heilongjiang Province显示文摘In order to clarify the water-saving technologies and standards in large-scale mechanized production of paddy fields, the water-saving effects and cost-benefit situations of paddy field steeping, seedling transplanting and different land preparation methods were studied. The results showed that the suitable water layer height for the closing period of mechanized operation was 10 cm, which could save water, facilitate weed control, and lead to better effect and the highest yield. The treatment with a water layer height of 1 cm(Huadashui) for the seedling planting operation achieved better quality of seedling transplanting, lower vacancy rate and higher yield and was water-saving. From the perspective of saving water and taking into account the cost of land preparation, the method of steeping and beating the field was better than the method of plowing in autumn and rotary tillage and harrowing in spring, but it was very prone to lodging. From the perspective of high yield creation, the method of plowing in autumn and rotary tillage and harrowing in spring was significantly better than the method of steeping and beating the field. In order to reduce the cost of land preparation, it is recommended to change the way of plowing in autumn and rotary tillage and hallowing in spring to plowing in autumn and rotary tillage in spring or plowing and hallowing in spring to reduce the cost of one time of rotary tillage, and to simultaneously realize deeper plough layer, which is conducive to preventing lodging and obtaining high yield.Jingfang XUE Shuqiang CHEN Yongsheng CAI Xiaodong DU Limin YANG Haixin ZHAO Tong ZHOU Mingxu ZHOU Linan WANG 2021Agricultural Biotechnology2021,10,1:0
20Analysis of Clinicopathologic Features of Esophageal Carcinoma Patients Undergoing Surgery-a Report of 4,329 Cases显示文摘OBJECTIVE To investigate the clinicopathological features of esophageal carcinoma(EC)patients,and to analyze epidemiologic characteristics and the current situation of esophageal cancioma in the southern area of Hebei Province. METHODS A total of 4329 patients with esophageal cancinoma, undergoing surgery in the Fourth Hospital of Hebei Medical University during a period from January 1996 to December 2005, were selected.Collection and statistical analysis of the pathologic data were performed using a SAS 6.0 so ware package. RESULTS Over the past ten years,there has been a tendency for an increase in the mean age of EC onset(P<0.05),a downtrend in the percentage of squamous cancer(SqCa)(P<0.05)and an uptrend in the frequency of small cell carcinoma(P<0.05).In clinical stages,there was a drop in the percentage of Stage-II squamous EC patients(P<0.05),and an increase in that of Stage- IV patients(P<0.05).There were statistical differences in sex,age, pathologic types,depth of infiltration,ratio of stages and lymph node metastasis,etc.among the superior,middle and inferior segments of the EC diseased region(P<0.05). CONCLUSION It was relatively late for the EC patients from this area to see a doctor,resulting in a drop in the ratio of SqCa and an ascensus in that of small cell cancer.However,due to a low incidence of adenocarcinoma,no obvious ascending tendency was found in the frequency of this carcinoma over the past ten years.Wei Liu Xishan Hao Ying Jin Haixin Li Linan Song Shijie Wang Peizhong Wang Yong Chen Qian Fan Liyun Guan Yumin Ping Xianli Meng Rui Wang Junfeng Liu Xiaoling Wang 2008Chinese Journal of Clinical Oncology2008,5,2:0
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