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Chemical simulation teaching system based on virtual reality and gesture interaction
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作者 Dengzhen LU Hengyi LI +2 位作者 Boyu QIU Siyuan LIU Shuhan QI 《虚拟现实与智能硬件(中英文)》 EI 2024年第2期148-168,共21页
Background Most existing chemical experiment teaching systems lack solid immersive experiences,making it difficult to engage students.To address these challenges,we propose a chemical simulation teaching system based ... Background Most existing chemical experiment teaching systems lack solid immersive experiences,making it difficult to engage students.To address these challenges,we propose a chemical simulation teaching system based on virtual reality and gesture interaction.Methods The parameters of the models were obtained through actual investigation,whereby Blender and 3DS MAX were used to model and import these parameters into a physics engine.By establishing an interface for the physics engine,gesture interaction hardware,and virtual reality(VR)helmet,a highly realistic chemical experiment environment was created.Using code script logic,particle systems,as well as other systems,chemical phenomena were simulated.Furthermore,we created an online teaching platform using streaming media and databases to address the problems of distance teaching.Results The proposed system was evaluated against two mainstream products in the market.In the experiments,the proposed system outperformed the other products in terms of fidelity and practicality.Conclusions The proposed system which offers realistic simulations and practicability,can help improve the high school chemistry experimental education. 展开更多
关键词 Chemical experiment simulation Gesture interaction Virtual reality Model establishment Process control Streaming media DATABASE
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Establishing a System for Food Recalls to Protect Food Quality and Safety in China
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作者 Liu Wen Wang Jing 《China Standardization》 2007年第6期10-13,共4页
There are no explicit laws concerning food recalls in China; moreover, some related regulations have weaknesses. China should first create a system of laws and regulations governing food recalls, establish a system to... There are no explicit laws concerning food recalls in China; moreover, some related regulations have weaknesses. China should first create a system of laws and regulations governing food recalls, establish a system to recall defective food, and strengthen administrative and legal remedial mechanisms related to consumer rights. 展开更多
关键词 establishment FOOD RECALL system PROTECT FOOD quality FOOD safety
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ESTABLISHING OF OPTICAL TRACKING SYSTEM IN CAS ENVIRONMENT
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《Chinese Journal of Biomedical Engineering(English Edition)》 1999年第4期119-119,共1页
关键词 CAS IEEE establishing OF OPTICAL TRACKING system IN CAS ENVIRONMENT
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Eco-physiological characteristics of Tetracentron sinense Oliv.saplings in response to different light intensities
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作者 Rong Wang Xueheng Lu +4 位作者 Hongyan Han Xuemei Zhang Yonghong Ma Qinsong Liu Xiaohong Gan 《Journal of Forestry Research》 SCIE EI CAS CSCD 2024年第3期29-44,共16页
The regeneration of Tetracentron sinense Oliv.is poor in the understory and in open areas due to the charac-teristics of natural regeneration of the species on forest edges and in gaps.It is unclear whether different ... The regeneration of Tetracentron sinense Oliv.is poor in the understory and in open areas due to the charac-teristics of natural regeneration of the species on forest edges and in gaps.It is unclear whether different light intensities in various habitats affect eco-physiological characteristics of saplings and their natural regeneration.In this study,the light intensity in T.sinense habitats was simulated by artificial shading(L1:100%NS(natural sunlight)in the open;L2:50%NS in a forest gap or edge;L3:10%NS in understory)to investigate differences in morphology,leaf structure,physiology,and photosynthesis of 2-year-old sap-lings,and to analyze the mechanism of light intensity on sapling establishment.Significant differences were observed in morphology(including leaf area,and specific leaf area)under different light intensities.Compared to L1 and L3,chloroplast structure in L2 was intact.With increasing time,superoxide dismutase(SOD)and catalase(CAT)activities in L2 became gradually higher than under the other light intensities,while malondialdehyde(MDA)content was opposite.Shading decreased osmoregulation substance contents of leaves but increased chlorophyll.The results suggest that light intensities significantly affect the eco-physiological characteristics of T.sinense saplings and they would respond most favorably at intermediate levels of light by optimizing eco-physiological characteristics.Therefore,50%natural sunlight should be created to promote saplings establishment and population recovery of T.sinense during in situ conservation,including sowing mature seeds in forest edges or gaps and providing appropriate shade protection for seedlings and saplings in the open. 展开更多
关键词 Chloroplast ultrastructure Eco-physiological characteristics Light intensities Sapling establishment Tetracentron sinense Oliv
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Establishment and characterization of a canine chondrosarcoma cell line:Mango
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作者 Meilin Wang Xiao Wang +8 位作者 Lixin He Hongbo Gao Wenxuan Li Huili Feng Qingyuan Zhao Wenwen Zhang Chengzong Li Bohan Zhang Changwei Qiu 《Animal Diseases》 CAS 2024年第3期186-197,共12页
In the global progress of bone tumor research,established stable and long-lasting transgenic chondrosarcoma(CSA)cell lines are rare,mainly of murine and human origin,while the establishment of canine CSA cell lines ha... In the global progress of bone tumor research,established stable and long-lasting transgenic chondrosarcoma(CSA)cell lines are rare,mainly of murine and human origin,while the establishment of canine CSA cell lines has yet to be reported.This study established a canine CSA cell line to facilitate the basic clinical study of canine CSA.Fifty fve cases of canine osteolytic disease were collected,and more than 10 bone tumor samples from dogs with typical clinical signs were used for primary cell culture.A cell line with stable passaging for more than 100 generations and mouse tumorigenic ability was successfully cultured.According to the clinical characteristics of the dog and the histopathological results of the primary tumor,CSA was diagnosed,and the CSA cell line was designated Mango.Immunohistochemical(IHC)results showed that the immunoreactivity of bone gamma-carboxyglutamate protein(BGLAP),secreted protein acidic and rich in cysteine(SPARC),alkaline phosphatase(ALPL),vimentin(VIM)and S100 were positive.However,the immunoreactivity of pan-cytokeratin(PCK),chromogranin A(CGA),and platelet endothelial cell adhesion molecule-1(CD31)was negative.Immunofuorescence(IF)results showed that the protein expressions in the Mango cell line were consistent with the IHC identifcation of the primary tumor.The Mango cell line’s doubling time was 43.92 h,and the cell formation rate exceeded 20%.There were abnormal chromosome numbers,hetero staining with toluidine blue,and certain calcifcation abilities.It could be passaged stably and continuously without changing the cell morphology and characteristics.In vivo,the cells were successfully injected into the nude mice model with a tumorigenic rate of 100%.The immunophenotype of the xenograft tumor was consistent with that of the primary tumor.Therefore,we efectively established a canine CSA cell line.As a promising cell material,this cell line can be used to construct a tumor-bearing model conducive to the subsequent basic research of canine CSA.Moreover,because of its similarity to human CSA,the animal model of CSA is also indispensable for investigating human CSA. 展开更多
关键词 Canine chondrosarcoma Cell line ESTABLISHMENT CHARACTERIZATION Tumorigenicity
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Establishment and Optimization of ISSR-PCR Reaction System for Picea crassifolia kom.
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作者 王文峰 李毅 +1 位作者 马彦军 李栋栋 《Agricultural Science & Technology》 CAS 2009年第3期68-71,共4页
[Objective] The experiment aimed to determine the optimum ISSR-PCR reaction system of Picea crassifolia kom. [Method] Picea crassifolia kom. was used as material to select and optimize influencing factors of ISSR-PCR ... [Objective] The experiment aimed to determine the optimum ISSR-PCR reaction system of Picea crassifolia kom. [Method] Picea crassifolia kom. was used as material to select and optimize influencing factors of ISSR-PCR such as Mg2+, dNTPs, Taq DNA polymerase, template DNA, primers, annealing temperature. [Result] The optimum ISSR-PCR reaction system in 20 μl reaction system was consisted of 1 μl 10×buffer, 1.5 mmol/L Mg2+, 0.2 mmol/L dNTPs, 1.0 U Taq DNA polymerase, 40 ng template DNA, 0.6 μmol/L primers. According to gradient test of annealing temperature in optimum ISSR-PCR reaction system of Picea crassifolia kom, it was found that the optimum annealing temperature of UBC 818 was 54.2 ℃ and the annealing temperature was different for different primers.[Conclusion]The construction of ISSR-PCR reaction system provided technical basis for classification of germplasm resources, construction of genetic map, gene mapping of Picea crassifolia kom. through using ISSR technology. 展开更多
关键词 Picea crassifolia kom ISSR system establishment OPTIMIZATION
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HEADLINE
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《China Standardization》 2024年第5期8-11,共4页
Action plan on establishing standards and metrology system for dual carbon goals released Recently,the National Development and Reform Commission,the State Administration for Market Regulation(SAMR),and the Ministry o... Action plan on establishing standards and metrology system for dual carbon goals released Recently,the National Development and Reform Commission,the State Administration for Market Regulation(SAMR),and the Ministry of Ecology and Environment jointly issued the Action Plan on Further Strengthening the Construction of Standards and Metrology System for Carbon Peak and Neutrality(2024-2025). 展开更多
关键词 jointly establishing METROLOGY
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2023年标准化工作者职业认知调查问卷分析
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《China Standardization》 2024年第1期46-51,共6页
Building the capacity of standardization workers can help implement the strategy to enhance China’s strengths via standardization.The National Standardization Development Outline,issued by the Central Government,puts... Building the capacity of standardization workers can help implement the strategy to enhance China’s strengths via standardization.The National Standardization Development Outline,issued by the Central Government,puts forward strengthening the building of standardization talent teams and establishing a sound vocational ability evaluation and incentive mechanism of standardization talents. 展开更多
关键词 标准化工作者 职业认知 establishing
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Principle for the Installation of Accommodation for Sick guards in Public Health Establishments in Brazzaville in the Republic of Congo
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作者 Alain Symphorien Ndongo Destin Gemetone Etou Christian Tathy 《Journal of Environmental Science and Engineering(B)》 CAS 2024年第2期70-79,共10页
The results of scientific studies of human social facts in the field of health show that the management of a patient should involve the patient’s entourage,whatever the status or size of the health establishment.In h... The results of scientific studies of human social facts in the field of health show that the management of a patient should involve the patient’s entourage,whatever the status or size of the health establishment.In healthcare establishments in the Congo,the following are recognised as being responsible for medical care:specialist doctors,doctors,midwives,nurses and care assistants.The patient’s family and close friends are responsible for looking after the patient and financing care.The hospital infrastructure does not provide any space for the patient warden who accompany the patient during reception and hospitalisation.This makes Congolese hospitals inefficient for patient care.How can we integrate the function of the Sick guard and the assistance of the family,in order to reduce the mortality rate and repair the harm caused to patients requiring the presence of relatives during their stay in hospital,which is considered to be a dangerous place?This article examines the functional principles for configuring the space that patient warden would occupy in the patient care system.On the basis of a documentary analysis of sociological and architectural studies of existing facilities,this article proposes a typical accommodation model with the spaces needed to ensure the well-being and effectiveness of the patient warden with the patient.These are rooms with minimum space for 2 to 4 individual beds,equipped with toilets and showers.The accommodation has a dining area,kitchen and laundry facilities.In the future,this accommodation will become part of the hospital estate and may be occupied by orderlies and patient warden recruited by the hospital administration. 展开更多
关键词 Sick guard patient public health establishment ACCOMMODATION Republic of Congo
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Ethnic Resources Boost Rural Revitalization
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作者 LU JIAJUN 《China Today》 2024年第4期39-41,共3页
Since establishing a business in her rural hometown in 2017,Shi Jia,an ethnic Miao entrepreneur,has been committed to exploring ethnic resources to develop local industries.“Compared with other embroidery styles,the ... Since establishing a business in her rural hometown in 2017,Shi Jia,an ethnic Miao entrepreneur,has been committed to exploring ethnic resources to develop local industries.“Compared with other embroidery styles,the Miao embroidery focuses on vivid expression.At the beginning,it was used to record big events in place of writing,and distinguish tribes by different totems.Its color is brighter,and the design is simpler.There are also many auspicious patterns to pray for good luck,”Shi Jia,a deputy to the National People’s Congress(NPC)and president of a Miao clothing company,told China Today. 展开更多
关键词 RURAL establishing simpler
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Convergence over AI Governance Amid Differences
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作者 Thorsten Jelinek 《China Report ASEAN》 2024年第4期46-47,共2页
This year marks a significant year for establishing guardrails around artificial intelligence(AI),with major regions like the EU,the U.S.,and China converging over a risk-based regulatory approach,albeit with distinct... This year marks a significant year for establishing guardrails around artificial intelligence(AI),with major regions like the EU,the U.S.,and China converging over a risk-based regulatory approach,albeit with distinct differences.This trend reflects a broader trend towards digital sovereignty,with governments seeking increased control over their digital markets and technologies to ensure safety and security,while aiming to boost their AI competitiveness. 展开更多
关键词 SEEKING establishing TREND
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Keeping Commitments,Meeting Expectations
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作者 HANNAH WANJIE RYDER CHEN HUIYI 《ChinAfrica》 2024年第9期38-40,共3页
How well is FOCAC meeting Africa’s aspirations for development?The idea of establishing the Forum on China-Africa Cooperation(FOCAC)in 2000 initially came from African countries,eager to coordinate and manage their r... How well is FOCAC meeting Africa’s aspirations for development?The idea of establishing the Forum on China-Africa Cooperation(FOCAC)in 2000 initially came from African countries,eager to coordinate and manage their relationship with China. 展开更多
关键词 China. EXPECTATION establishing
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这一天,值得永恒铭记——写在西藏百万农奴解放纪念日之际
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作者 Yang Meixiao Huang Wenjuan 《China's Tibet》 2024年第2期8-11,共4页
The year 2024 marks the 65th anniversary of democratic reform in Xizang.March 28th of this year is the 15th anniversary of establishing the commemoration day for the emancipation of one million serfs in Xizang.Xizang&... The year 2024 marks the 65th anniversary of democratic reform in Xizang.March 28th of this year is the 15th anniversary of establishing the commemoration day for the emancipation of one million serfs in Xizang.Xizang's democratic reform is the greatest and most profound social transformation in the history of Xizang.Under the leadership of the Communist Party of China(CPC),within just a few decades,these one million former serfs in old Xizang were not only liberated but also transformed into the masters of their nation and society. 展开更多
关键词 ANNIVERSARY establishing transformed
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Establishing Submersed Macrophytes via Sinking and Colonization of Shoot Fragments Clipped off Manually 被引量:8
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作者 WU Zhenbin ZUO Jincheng +3 位作者 MA Jianmin WU Juan CHENG Shuiping LIANG Wei 《Wuhan University Journal of Natural Sciences》 CAS 2007年第3期553-557,共5页
In this paper, sinking and growth of apexes and mid-stems of Myriophyllum spicatum L., Hydrilla verticillata (L.f.) Royle and Ceratophyllum demersum L. in concrete ponds containing eutrophic water and sediment were ... In this paper, sinking and growth of apexes and mid-stems of Myriophyllum spicatum L., Hydrilla verticillata (L.f.) Royle and Ceratophyllum demersum L. in concrete ponds containing eutrophic water and sediment were investigated. Sinking rates of apexes and mid-stems reached 34.8% and 4.4% at the 6 th day and 91.1% and 66.7% at the 22 nd day for M. spicatum, 57.8% and 55.6% at the 6 th day and 100% and 97.8% at the 22 nd day for H. vertieillata, 18.9% and 86.7% at the 6 th day and 95.6% and 100% at the 22 nd day for C. demersum, respectively. Most sunken fragments established themselves successfully with significant growth. Total shoot length ofplantlets developed from apexes and mid-stems increased by 399% and 61% for M. spicatum, 593% and 256% for H. vertieillata and 114% and 104% for C. demersum, respectively. The results showed that it was feasible to establish submersed macrophytes via sinking and colonization of shoot fragments clipped off manually. 展开更多
关键词 EUTROPHICATION submersed macrophyte restoration shoot fragment SINK establish
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Establishing an experimental model of photodynamic induced anterior ischemic optic neuropathy 被引量:3
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作者 Runsheng Wang Xiaodi Wang +6 位作者 Peilin Lue Jianwei Bai Jianzhou Wang Xiaoqin Lei Xiao- liang Zhou Hongfen Sun Aizhu Pan 《Neural Regeneration Research》 SCIE CAS CSCD 2006年第4期339-342,共4页
BACKGROUND: Scholars have supposed to establish animal models of optic neuropathy by pressing and partially amputating optic nerve, increasing intraocular pressure and injecting vasoconstrictor, etc., but the models ... BACKGROUND: Scholars have supposed to establish animal models of optic neuropathy by pressing and partially amputating optic nerve, increasing intraocular pressure and injecting vasoconstrictor, etc., but the models are greatly different from anterior ischemia optic neuropathy. Therefore, a more ideal method is needed to establish animal model of anterior ischemic optic neuropathy (AION). OBJECTIVE : To establish AION models in rats, observe the functional changes of fundus, fundus fluorescein angiography (FFA), optical coherence tomography (OCT), flash visual evoked potential (F-VEP), and histopathologically confirm its reliability. DESIGN: A randomized control tria SETTINGS : Department of Ophthalmology, Xi'an Fourth Hospital; Xi'an Institute of Ocular Fundus Diseases MATERIALS : The experiments were carried out in the research room of Xi'an Institute of Ocular Fundus Diseases from February 2005 to May 2006. Thirty healthy male SD rats of 4-5 weeks old, weighing 140-160 g, were provided by the animal experimental center of the Fourth Military Medical University of Chinese PLA [SCXK (Military)2002-005], and those without eye disease examined by slit lamp and direct ophthalmoscope after mydriasis were enrolled. The conditions for feeding mice without special pathogen were strictly followed. The rats were randomly divided into blank control group (n =5), laser group (n =5), hematoporphyrin derivative (HPD) group and AION group (n =15), each group was numbered randomly. For each rat, the right eye was taken as the experimental eye, and the left one as the control one. METHODS: In the AION group, the rats were injected with HPD (10 mg/kg) via caudal vein, and then the optic discs were exposed to krypton red (647 nm, 80 mV) for 120 s, and the rats were in avoidance of light for 2 weeks postoperatively. Rats in the laser group were only exposed to krypton red (647 rim, 80 mV) for 120 s, and in avoidance of light for 2 weeks postoperatively; Those in the HPD group were only injected with HPD (10 mg/kg) via caudal vein; Those in the blank control group were untouched. (1) Visual electrophysiological test: The F-VEP was used to evaluate the function of visual nerve. (2) FFA: After mydriasis and anesthesia as describe above, the fluorescein sodium parenteral solution (1 mL/kg) was injected v/a caudal vein and finished within about 3 s, the time of FFA was recorded from the beginning of injection, the video sight aimed at the optic disc and the surrounding area. (3) After mydriasis and anesthesia as describe above, the rats were examined with OCT. (4) Histological observation: After hematoxylin and eosin (HE) staining, the optic disc and surrounding blood vessels of retina were observed under light microscope at high power field. MAIN OUTCOME MEASURES: The results of fundus, FFA, visual electrophysiological test and OCT detection within 90 days after model establishment were observed. RESULTS: Of the 30 rats, 1 died after anesthesia in the laser group and 2 died in the AION group respectively, and finally 27 rats were involved in the analysis of results. (1) Changes in fundus: In the AION group, there was edema in upper optic disc and unclear boundary at 1 day after establishment, edema still could be observed at 6 days, and upper optic disc atrophied and appeared as pale at 90 days. (2) FFA results: In the AION group, early "low fluorescence", middle and late "high fluorescence" were observed in upper optic disc 1 day after model establishment, and there was "low fluorescence" at 6 days, and the low fluorescence could be observed all the time at 23 days. (3) Visual electrophysiological changes: In the AION group as compared with the control eyes, the experimental ones had prolonged F-VEP P100 latency [(71.65±8.81), (57.58±8.38) ms, t =3.148, P =0.012], and decreased wave amplitude [(4.77±1.90), (10.06±3.66) μV, t =4.082, P =0.003], and these changes lasted to 35 days after model establishment. (4) OCT results: In the AION group, the reflection surface of part nerve fiber layer was higher than the retina plane, the surface was rough and the thickness was increased at 6 days after model establishment. (5) Histopathological results: At 1 day after model establishment, part optic discs had highly edema, edema of nerve fibers, and loose tissue, also accompanied by the displacement of surrounding retina; At 23 days, the optic disc and surrounding nerve fiber layers became thinner, and the numbers of ganglion nuclei in the retina tissue sections were obviously decreased. These changes were not observed in the laser group, HPD group and blank control group. CONCLUSION : The changes of fundus, FFA, OCT, visual electrophysiology and histopathology confirmed that the krypton red laser irradiation (647 nm) at 2 hours after HPD was injected via caudal vein can establish more ideal animal models of AION. 展开更多
关键词 AION establishing an experimental model of photodynamic induced anterior ischemic optic neuropathy
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PHENOMENON OF ESTABLISHING COENOSIUM IN DESERT AND THE ECOLOGICAL RESTORATION IN THE AREA AROUND THE OASIS 被引量:2
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作者 Huang Pei you Department of Biology, Xinjiang Universty, Urumqi 830046 《干旱区资源与环境》 CSCD 1993年第Z1期299-301,共3页
The area around the oasis, lying between the oasis and the natural desert and encirclesthe oasis is different from ecotone of the oasis and the desert, because it is not the trans-forming area betwen them, but it is e... The area around the oasis, lying between the oasis and the natural desert and encirclesthe oasis is different from ecotone of the oasis and the desert, because it is not the trans-forming area betwen them, but it is ecological rift valley or ecological burst zone. The oasisbase will be shaked and the nature desert will be degenerative too. It is the crux of the envi- 展开更多
关键词 DESERT VEGETATION Coenosium ESTABLISHMENT OASIS Ecologic RESTORATION
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Effects of aggregating forests, establishing forest road networks, and mechanization on operational efficiency and costs in a mountainous region in Japan 被引量:1
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作者 Kazuhiro Aruga Gyo Hiyamizu +1 位作者 Chikara Nakahata Masashi Saito 《Journal of Forestry Research》 SCIE CAS CSCD 2013年第4期747-754,共8页
We investigated forest road networks and forestry operations before and after mechanization on aggregated forestry operation sites. We developed equations to estimate densities of road networks with average slope angl... We investigated forest road networks and forestry operations before and after mechanization on aggregated forestry operation sites. We developed equations to estimate densities of road networks with average slope angles, operational efficiency of bunching operations with road network density, and average forwarding distances with operation site areas. Subsequently, we analyzed the effects of aggregating forests, establishing forest road networks, and mechanization on operational efficiency and costs. Six ha proved to be an appropriate operation site area with minimum operation expenses. The operation site areas of the forest owners' cooperative in this region aggregated approximately 6 ha and the cooperative conducted forestry operations on aggregated sites. Therefore, 6 ha would be an appropriate operation site area in this region. Regarding road network density, higher-density road networks increased operational expenses due to the higher direct operational expenses of strip road establishment. Therefore, road network density should be reduced to approximately 200 m. 展开更多
关键词 aggregating forests establishing forest road networks MECHANIZATION operational efficiency COSTS
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Experimental System for Quantum Cryptography Based on Two Nonorthogonal Photon Polarization States 被引量:1
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作者 ZHANG Yong DENG Le +1 位作者 MAO Min DING Liang-en 《Chinese Physics Letters》 SCIE CAS CSCD 1998年第4期238-239,共2页
Quantum cryptography allows the establishing of a highly confidential sequence of random bits between two parties who share no secret information in advance.Its security is guaranteed by the basic laws of quantum mech... Quantum cryptography allows the establishing of a highly confidential sequence of random bits between two parties who share no secret information in advance.Its security is guaranteed by the basic laws of quantum mechanics rather than mathematical difficulty.An experimental system based on a novel protocol for quantum cryptography using only two nonorthogonal photon polarization states is implemented.The photon sources are two semiconductor laser diodes operated at 680 nm,their light pulses which are heavily attenuated to far below one photon per pulse are employed to encode the key.Gated single photon detection technique is used to minimize the dark count effect of the photon multiplier tube.Key establishing rate of 40 b/s and error rate of 2.1%are obtained.Compared with other systems,our system has the simplest experimental setup. 展开更多
关键词 establishing QUANTUM system
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Establishing of the Transplanted Animal Models for Human Lung Cancer 被引量:1
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作者 Xingli Zhang Jinchang Wu 《Journal of Nanjing Medical University》 2009年第1期1-5,共5页
Lung cancer is the leading cause of cancer mortality worldwide.Even with the applications of excision, radiotherapy, chemotherapy, and gene therapy, the 5 year survival rate is only 15% in the USA. Clinically relevant... Lung cancer is the leading cause of cancer mortality worldwide.Even with the applications of excision, radiotherapy, chemotherapy, and gene therapy, the 5 year survival rate is only 15% in the USA. Clinically relevant laboratory animal models of the disease could greatly facilitate understanding of the pathogenesis of lung cancer, its progression, invasion and metastasis. Transplanted lung cancer models are of special interest and are widely used today. Such models are essential tools in accelerating development of new therapies for lung cancer. In this communication we will present a brief overview of the hosts, sites and pathways used to establish transplanted animal lung tumor models. 展开更多
关键词 lung cancer transplanted animal models establish animal models
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A preliminary research establishing the present-time intraplate blocks movement model on the Chinese
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《Acta Seismologica Sinica(English Edition)》 CSCD 1998年第4期403-412,共10页
Apreliminaryresearchestablishingthepresent-timeintraplateblocksmovementmodelontheChinesemainlandbasedonGPSda... Apreliminaryresearchestablishingthepresent-timeintraplateblocksmovementmodelontheChinesemainlandbasedonGPSdataSHUO-YUZHOU1)(周... 展开更多
关键词 present-time INTRAPLATE the establishing CHINESE
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