|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Variation of terrestrial ecosystem recorded by stable carbon isotopes of fossils in northern China during the Quaternary显示文摘Stable carbon isotopes of C3 and C4 plants have completely distinct δ13C values respectively. Carbonate in tooth enamel of herbivorous mammals is significantly and regularly enriched in 13C compared to source carbon. As a result, we can reconstruct distributions of C3 and C4 plants in geological history based on carbon isotopes of mammalian tooth enamel. Carbon isotopes of 70 mammalian tooth enamel samples from 11 Quaternary localities in northern China are analyzed. This analysis indicates that C3 plants were dominant in the terrestrial ecosystem of northern China during the Quaternary, which is completely different from Pakistan with relatively close latitudes where C4 plants were absolutely dominant. The great difference was caused by the uplift of the Tibetan Plateau. A simulation implied that a marked temperature decrease would happen in the north side of the Tibetan Plateau, but a temperature increase in the south side. The warming condition caused the transition from C3 to C4 plants in Pakistan | DENG Tao, DONG Junshe & WANG YangInstitute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China Laboratory of Palaeobiology and Stratigraphy, Chinese Academy of Sciences, Nanjing 210008, China Department of | 2002 | Chinese Science Bulletin2002，47，1： | 4 |
| 2 | Network Security Situation Awareness Framework based on Threat Intelligence显示文摘Network security situation awareness is an important foundation for network security management,which presents the target system security status by analyzing existing or potential cyber threats in the target system.In network offense and defense,the network security state of the target system will be affected by both offensive and defensive strategies.According to this feature,this paper proposes a network security situation awareness method using stochastic game in cloud computing environment,uses the utility of both sides of the game to quantify the network security situation value.This method analyzes the nodes based on the network security state of the target virtual machine and uses the virtual machine introspection mechanism to obtain the impact of network attacks on the target virtual machine,then dynamically evaluates the network security situation of the cloud environment based on the game process of both attack and defense.In attack prediction,cyber threat intelligence is used as an important basis for potential threat analysis.Cyber threat intelligence that is applicable to the current security state is screened through the system hierarchy fuzzy optimization method,and the potential threat of the target system is analyzed using the cyber threat intelligence obtained through screening.If there is no applicable cyber threat intelligence,using the Nash equilibrium to make predictions for the attack behavior.The experimental results show that the network security situation awareness method proposed in this paper can accurately reflect the changes in the network security situation and make predictions on the attack behavior. | Hongbin Zhang Yuzi Yi Junshe Wang Ning Cao Qiang Duan | 2018 | Computers, Materials & Continua2018，，9： | 2 |
| 3 | Optimization of β-carotene production by Rhodotorula glutinis using high hydrostaticpressure and response surface methodology显示文摘 | WANG Suilou SUN Junshe HAN Beizhong | 2007 | Journal of FoodScience2007，72，8： | 1 |
| 4 | Optimization of β-carotene produetion by Rhodotorula glutinis using high hydrostatic pressure and response surface methodology显示文摘 | Wang Suilou Sun Junshe Han Beizhong | 2007 | Journal of food science2007，72，8： | 1 |
| 5 | Corn stover pretreatment by inorganic salts and its effects on hemicellulose and cellulose degradation显示文摘 | Li Liu Junshe Sun Chengye Cai Shuhao Wang Haisheng Pei Jingsheng Zhang | 2009 | Bioresource Technology2009，，23： | 1 |
| 6 | Enhanced enzymatic hydrolysis and structural features of corn stover by FeCl 3 pretreatment显示文摘 | Li Liu Junshe Sun Min Li Shuhao Wang Haisheng Pei Jingsheng Zhang | 2009 | Bioresource Technology2009，，23： | 1 |
| 7 | Corn stover pretreatment by inorganic salts and its effects on hemicellulose and cellulose degradation显示文摘 | Li Liu Junshe Sun Chengye Cai Shuhao Wang Haisheng Pei Jingsheng Zhang | 2009 | Bioresource Technology2009，，23： | 1 |
| 8 | Corn stover pretreatment by inorganic salts and its effects on hemicellulose and cellulose degradation显示文摘 | Li Liu Junshe Sun Chengye Cai Shuhao Wang Haisheng Pei Jingsheng Zhang | 2009 | Bioresource Technology2009，，23： | 1 |
| 9 | Enhanced p-carotene production by Rhodotorula glutinis using high hydrostatic pressure 显示文摘 | WANG Suilou SUN junshe HAN beizhong | 2008 | Korean Journal Chemical Engineering2008，25，3： | 1 |
| 10 | Optimization of β-carotene production by Rhodotorula glutinis using high hydrostatic pressure and response surface methodology 显示文摘 | Wang Suilou Sun Junshe Han Beizhong | 2007 | Journal of food science2007，72，8： | 1 |
| 11 | Reduction kinetics of SrFeO_(3−δ)/CaO∙MnO nanocomposite as effective oxygen carrier for chemical looping partial oxidation of methane显示文摘Chemical looping reforming of methane is a novel and effective approach to convert methane to syngas,in which oxygen transfer is achieved by a redox material.Although lots of efforts have been made to develop high-performance redox materials,a few studies have focused on the redox kinetics.In this work,the kinetics of SrFeO_(3−δ)–CaO∙MnO nanocomposite reduction by methane was investigated both on a thermo-gravimetric analyzer and in a packed-bed microreactor.During the methane reduction,combustion occurs before the partial oxidation and there exists a transition between them.The weight loss due to combustion increases,but the transition region becomes less inconspicuous as the reduction temperature increased.The weight loss associated with the partial oxidation is much larger than that with combustion.The rate of weight loss related to the partial oxidation is well fitted by the Avrami–Erofeyev equation with n=3(A3 model)with an activation energy of 59.8 kJ∙mol^(‒1).The rate law for the partial oxidation includes a solid conversion term whose expression is given by the A3 model and a methane pressure-dependent term represented by a power law.The partial oxidation is half order with respect to methane pressure.The proposed rate law could well predict the reduction kinetics;thus,it may be used to design and/or analyze a chemical looping reforming reactor. | Xinhe Wang Liuqing Yang Xiaolin Ji Yunfei Gao Fanxing Li Junshe Zhang Jinjia Wei | 2022 | Frontiers of Chemical Science and Engineering2022，16，12： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员