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Analysis on Clinical Characteristics and Combination Medications of Elemene Injection in the Treatment of Esophageal Cancer in Real World Research
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作者 SHI Pu-wen ZHAO Xiao-xiao +1 位作者 XIE Yan-ming YU Xiao-kang 《World Journal of Integrated Traditional and Western Medicine》 2022年第3期1-8,共8页
Objective:To explore the clinical characteristics of Elemene Injection in the treatment of patients with esophageal cancer.Methods:A total of 310 patients diagnosed with esophageal cancer from the Hoptital Information... Objective:To explore the clinical characteristics of Elemene Injection in the treatment of patients with esophageal cancer.Methods:A total of 310 patients diagnosed with esophageal cancer from the Hoptital Information System(HIS)of 21 hospitals across the country were selected in the study,and these patients all had been treated with Elemene Injection.In this study,the clinical general medication record information,diagnosis scheme information,general treatment information and combined medications information were analyzed by frequency statistics and association rules.Results:Elemene Injection was used most in patients aged 46-65(177 cases,57.10%);male patients were more than female.Among the main diagnoses of the most seasons and solar terms in hospitalization,the top three diagnoses were esophageal malignant tumor,malignant tumor,and hypertension.In terms of combination medication,the combination of western medicine blood substitutes and perfusion fluids,general nutritional drugs,vitamins,antibacterial drugs,and immune-promoting drugs were the main ones;the combination of traditional Chinese medicine was mainly anti-tumor drugs(48.71%).In addition,among the combination medications,the highest frequency of Elemene Injection combined with western medicine and traditional Chinese medicine were Xiaoaiping Injection(消癌平注射液)and ascorbic acid.Conclusion:The main susceptible people of esophageal cancer was middle-aged around 46-65,and there were more male patients than female;through the first diagnosis of western medicine,it can be found that in addition to patients suffering from esophageal cancer or other cancers,patients with high blood pressure,heart disease,and diabetes could use Elemene Injection.Therefore,when receiving such patients,attention should be paid to checking whether the patient had such diseases.At the same time,when using Elemene Injection,it's necessary to pay attention to certain combined medications to avoid adverse reactions. 展开更多
关键词 real world research combination medications Elemene Injeciton Esophageal cancer patients Clinical characteristics
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A State-of-the-Art Survey on Real-Time Issues in Embedded Systems Virtualization 被引量:1
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作者 Zonghua Gu Qingling Zhao 《Journal of Software Engineering and Applications》 2012年第4期277-290,共14页
Virtualization has gained great acceptance in the server and cloud computing arena. In recent years, it has also been widely applied to real-time embedded systems with stringent timing constraints. We present a compre... Virtualization has gained great acceptance in the server and cloud computing arena. In recent years, it has also been widely applied to real-time embedded systems with stringent timing constraints. We present a comprehensive survey on real-time issues in virtualization for embedded systems, covering popular virtualization systems including KVM, Xen, L4 and others. 展开更多
关键词 virtualIZATION EMBEDDED Systems real-TIME Scheduling
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Justification and System Arrangement of Virtual Property Rights——Comments on Article No. 127 of General Provisions of the Civil Law
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作者 Li Yan Ge Hongquan 《Contemporary Social Sciences》 2019年第2期1-20,共20页
In the process of formulating the General Provisions of the Civil Law of P. R. China, the attribute of virtual property rights has changed from real rights to non-real rights. Article No. 127 thereof does not clarify ... In the process of formulating the General Provisions of the Civil Law of P. R. China, the attribute of virtual property rights has changed from real rights to non-real rights. Article No. 127 thereof does not clarify the nature of virtual property rights after all, and the place where virtual property is put in the "Civil Rights" chapter of General Provisions of the Civil Law makes the concept even more complex and confusing. The "relationships paradigm" protection of virtual property does not have a definite classification criterion, nor stands opposite to the "rights paradigm." There are two different ways to justify the "theory of virtual property as a real right" under the "rights paradigm" protection, namely, essentialism and consequentialism. The former resulted from utilizing features in a demonstration and identifying disposal rights with real rights, while the latter resulted from adherence to the dichotomy system of property rights comprising real rights and creditor's rights. From the perspective of larceny in Criminal Law and virtual property insurance in The Social Insurance Law, the attribute of virtual property rights is irrelevant to creditor's rights. The attribute of virtual property rights shall be defined as virtual property rights so that it can be included in the system of civil rights. The uniqueness of virtual property is enough to become an object of emerging civil rights; intangible property rights as a superordinate theoretical concept cannot reflect the essence of virtual property rights. The legislative frame of virtual property rights shall be comprised of the subject, object, exercise, publication and change of the rights. 展开更多
关键词 virtual PROPERTY theORY of virtual PROPERTY as a real RIGHT theORY of virtual PROPERTY as a creditor's RIGHT intangible PROPERTY RIGHTS virtual PROPERTY RIGHTS
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Virtualization of Real Estate Industry and Housing Bubbles --Empirical Evidence from China
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作者 Beibei Yan Yizhen Wang 《经济管理学刊(中英文版)》 2019年第1期22-31,共10页
In the last twenty years, China has experienced a rapid development in the real estate industry. The continuous rising house price causes many social and economic problems and draws a lot of attentions from academia, ... In the last twenty years, China has experienced a rapid development in the real estate industry. The continuous rising house price causes many social and economic problems and draws a lot of attentions from academia, business world and government. Many researchers shed light on this problem from different angles, but till today, it hasn’t been fully resolved. In this paper, we try to examine the real estate bubble from a virtual economic perspective. We think that the virtual feature of real estate alters its economic role from a purely living and working place to a financing instrument. We use the newest monthly data of China real estate market from 2006 to 2018 and estimate the relationship between the housing bubble and real estate industry virtualization. We identify a significant positive association between house price index and the purchase price of land in real estate investment. This result suggests that virtual feature of real estate has deepen the bubble problem in the industry and its virtualization degree appears to be closely related to the virtual feature of land and its price proportion to real estate investment. 展开更多
关键词 real ESTATE BUBBLES virtual ECONOMY China HOUSING
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mRNA Dependent Virtual-Real Substitutions of Nucleotides in Codons: The Dynamics of Their Meanings in the Genome Language
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作者 P. P. Gariaev E. A. Leonova-Gariaeva 《Open Journal of Genetics》 2019年第4期77-90,共14页
This is an attempt to explain mRNA-dependent non-stationary semantic values of codons (triplets) and nucleotides (letters) in codon composition during protein biosynthesis. This explanation is realized by comparing th... This is an attempt to explain mRNA-dependent non-stationary semantic values of codons (triplets) and nucleotides (letters) in codon composition during protein biosynthesis. This explanation is realized by comparing the different protein codes of various biosystem taxa, and, comparing mitochondrial code with the standard code. An initial mRNA transcriptional virtuality (Virtual-Reality) is transformed into material reality at the level of translation of virtual triplets into real (material) amino acids or into a real stop command of protein biosynthesis. The transformation of virtuality into reality occurs de facto when the linguistic sign1 functions of the codon syhoms are realized in the 3’ nucleotide (wobbling nucleotide according to F. Crick) in the process of protein biosynthesis. This corresponds to the theoretical works of the authors of this article. Despite the illusory appearance of semantic arbitrariness during the operation of ribosomes in the mode of codon semantic non-stationarity, this phenomenon probably provides biosystems with an unusually high level of adaptability to changes in the external environment as well as to internal (mental) dynamics of neuron’s genome in the cerebral cortex. The genome’s non-stationarity properties at the nucleotide, codon, gene and mental levels have fractal structure and corresponding dimensions. The highest form of such fractality (with maximum dimension) is probably realized in the genomic continuum of neurons in the human cerebral cortex through this semantic Virtual-to-Real (VR) codon transcoding with the biosynthesis of short-living semantic proteins, as the equivalents of material thinking-consciousness. In fact, this is the language of the brain’s genome, that is, our own language. In this case, the same thing happens in natural, primarily mental (non-verbal) languages. Their materialization is recorded in vocables (sounding words) and in writing. Such writing is the amino acid sequence in the semantic proteins of the human cerebral cortex. Rapidly decaying, such proteins can leave a long-lasting “so-called” Schr&#246;dinger wave holographic memory in the cerebral cortex. The presented below study is purely theoretical and based on a logical approach. The topic of the study is very complex and is subject to further development. 展开更多
关键词 PROTEIN Biosynthesis PROTEIN Codes CODONS (Triplets) MRNA virtual-real (VR) Transcoding Semantics Thinking Consciousness
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Influence of static cartoons combined with dynamic virtual environments on preoperative anxiety of preschool-aged children undergoing surgery 被引量:1
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作者 Ya-Lin Zhang Qi-Ying Zhou +3 位作者 Peng Zhang Lin-Feng Huang Li Jin Zhi-Guo Zhou 《World Journal of Clinical Cases》 SCIE 2024年第22期4947-4955,共9页
BACKGROUND Preschoolers become anxious when they are about to undergo anesthesia and surgery,warranting the development of more appropriate and effective interventions.AIM To explore the effect of static cartoons comb... BACKGROUND Preschoolers become anxious when they are about to undergo anesthesia and surgery,warranting the development of more appropriate and effective interventions.AIM To explore the effect of static cartoons combined with dynamic virtual environments on preoperative anxiety and anesthesia induction compliance in preschool-aged children undergoing surgery.METHODS One hundred and sixteen preschool-aged children were selected and assigned to the drug(n=37),intervention(n=40),and control(n=39)groups.All the children received routine preoperative checkups and nursing before being transferred to the preoperative preparation room on the day of the operation.The drug group received 0.5 mg/kg midazolam and the intervention group treatment consisting of static cartoons combined with dynamic virtual environments.The control group received no intervention.The modified Yale Preoperative Anxiety Scale was used to evaluate the children’s anxiety level on the day before surgery(T0),before leaving the preoperative preparation room(T1),when entering the operating room(T2),and at anesthesia induction(T3).Compliance during anesthesia induction(T3)was evaluated using the Induction Compliance Checklist(ICC).Changes in mean arterial pressure(MAP),heart rate(HR),and respiratory rate(RR)were also recorded at each time point.RESULTS The anxiety scores of the three groups increased variously at T1 and T2.At T3,both the drug and intervention groups had similar anxiety scores,both of which were lower than those in the control group.At T1 and T2,MAP,HR,and RR of the three groups increased.The drug and control groups had significantly higher MAP and RR than the intervention group at T2.At T3,the MAP,HR,and RR of the drug group decreased and were significantly lower than those in the control group but were comparable to those in the intervention group.Both the drug and intervention groups had similar ICC scores and duration of anesthesia induction(T3),both of which were higher than those of the control group.CONCLUSION Combining static cartoons with dynamic virtual environments as effective as medication,specifically midazolam,in reducing preoperative anxiety and fear in preschool-aged children.This approach also improve their compliance during anesthesia induction and helped maintain their stable vital signs. 展开更多
关键词 PRESCHOOL Children Static cartoons combined with dynamic virtual environments Preoperative anxiety COMPLIANCE Anesthesia induction
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Real world effectiveness of PCSK-9 inhibitors combined with statins versus statins-based therapy among patients with very high risk of atherosclerotic cardiovascular disease in China(RWE-PCSK study) 被引量:7
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作者 Yu-Qi LIU Dan-Dan LI +32 位作者 Meng CHAI Hong-Liang CONG Xiao-Qiang CONG Jun DAI Rong-Pin DU Ming GAO Jin-Cheng GUO Yan-Qing GUO Xiao-Jian HONG Rong-Chong HUANG Feng-Shun JIA Jia-Yu LI Qing LI Jia-Mei LIU Xin-Ping LIU Yu-Guo LIU Hong-Gang NIE Bing SHAO Xiao-Yu SHEN Hai-Qing SONG Yi-Jun SONG Li-Jun WANG Shuo WANG Dong-Mei WU Jing XIA Zhi-Yong YANG Hong-Ying YU Hui ZHANG Tie-Mei ZHANG Ji-Yi ZHAO Liang-Chen ZHAO Ming-Qi ZHENG Yun-Dai CHEN 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2021年第4期261-270,共10页
BACKGROUND The efficacy and safety of proprotein convertase subtilisin/kexin type 9(PCSK-9) inhibitors were confirmed by several clinical trials, but its effectiveness in routine clinical practice in China has not bee... BACKGROUND The efficacy and safety of proprotein convertase subtilisin/kexin type 9(PCSK-9) inhibitors were confirmed by several clinical trials, but its effectiveness in routine clinical practice in China has not been evaluated. This study aims to describe the real world effectiveness of PCSK-9 inhibitors combined with statins compared with statins-based therapy among patients with very high risk of atherosclerotic cardiovascular disease(ASCVD).METHODS This is a multi-center observational study, enrolled patients from 32 hospitals who underwent percutaneous coronary intervention(PCI) from January to June in 2019. There are 453 patients treated with PCSK-9 inhibitors combined with statins in PCSK-9 inhibitor group and 2,610 patients treated with statins-based lipid lowering therapies in statins-based group. The lipid control rate and incidence of major adverse cardiovascular events(MACE) over six months were compared between two groups.A propensity score-matched(PSM) analysis was used to balance two groups on confounding factors. Survival analysis using Kaplan-Meier methods was applied for MACE.RESULTS In a total of 3,063 patients, 89.91% of patients had received moderate or high-intensity statins-based therapy before PCI, but only 9.47% of patients had low-density lipoprotein cholesterol(LDL-C) levels below 1.4 mmol/L at baseline. In the PSM selected patients, LDL-C level was reduced by 42.57% in PCSK-9 inhibitor group and 30.81%(P < 0.001) in statins-based group after six months. The proportion of LDL-C ≤ 1.0 mmol/L increased from 5.29% to 29.26% in PCSK-9 inhibitor group and 0.23% to 6.11% in statins-based group, and the proportion of LDL-C ≤ 1.4 mmol/L increased from 10.36% to 47.69% in PCSK-9 inhibitor group and 2.99% to 18.43% in statins-based group(P < 0.001 for both). There was no significant difference between PCSK-9 inhibitor and statins-based treatment in reducing the risk of MACE(hazard ratio = 2.52, 95% CI: 0.49-12.97, P = 0.250).CONCLUSIONS In the real world, PCSK-9 inhibitors combined with statins could significantly reduce LDL-C levels among patients with very high risk of ASCVD in China. The long-term clinical benefits for patients received PCSK-9 inhibitor to reduce the risk of MACE is still unclear and requires further study. 展开更多
关键词 LDL RWE-PCSK study real world effectiveness of PCSK-9 inhibitors combined with statins versus statins-based therapy among patients with very high r
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Real-time virtual sonography visualization and its clinical application in biliopancreatic disease 被引量:1
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作者 Atsushi Sofuni Takao Itoi +11 位作者 Fumihide Itokawa Takayoshi Tsuchiya Toshio Kurihara Kentaro Ishii Syujiro Tsuji Nobuhito Ikeuchi Reina Tanaka Junko Umeda Ryosuke Tonozuka Mitsuyoshi Honjo Shuntaro Mukai Fuminori Moriyasu 《World Journal of Gastroenterology》 SCIE CAS 2013年第42期7419-7425,共7页
AIM:To evaluate the usefulness of real-time virtual sonography(RVS)in biliary and pancreatic diseases.METHODS:This study included 15 patients with biliary and pancreatic diseases.RVS can be used to observe an ultrasou... AIM:To evaluate the usefulness of real-time virtual sonography(RVS)in biliary and pancreatic diseases.METHODS:This study included 15 patients with biliary and pancreatic diseases.RVS can be used to observe an ultrasound image in real time by merging the ultrasound image with a multiplanar reconstruction computed tomography(CT)image,using pre-scanned CT volume data.The ultrasound used was EUB-8500with a convex probe EUP-C514.The RVS images were evaluated based on 3 levels,namely,excellent,good and poor,by the displacement in position.RESULTS:By combining the objectivity of CT with free scanning using RVS,it was possible to easily interpret the relationship between lesions and the surrounding organs as well as the position of vascular structures.The resulting evaluation levels of the RVS images were12 excellent(pancreatic cancer,bile duct cancer,cholecystolithiasis and cholangiocellular carcinoma)and 3 good(pancreatic cancer and gallbladder cancer).Compared with conventional B-mode ultrasonography and CT,RVS images achieved a rate of 80%superior visualization and 20%better visualization.CONCLUSION:RVS has potential usefulness in objective visualization and diagnosis in the field of biliary and pancreatic diseases. 展开更多
关键词 BILIARY and pancreatic disease COMPUTED tomography-multiplanar reconstruction IMAGE Navigation real-TIME ultrasound IMAGE real-TIME virtual SONOGRAPHY
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Optimizing Real-Time Performance of 3D Virtual Mining Environment with MultiGen Creator 被引量:12
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作者 WANGWei-chen JIANGXiao-hong +1 位作者 HANKe-qi HANWen-ji 《Computer Aided Drafting,Design and Manufacturing》 2004年第1期61-69,共9页
System optimization plays a crucial role in developing VR system after 3D modeling, affecting the system's Immersion and Interaction performance enormously. In this article, several key techniques of optimizing a ... System optimization plays a crucial role in developing VR system after 3D modeling, affecting the system's Immersion and Interaction performance enormously. In this article, several key techniques of optimizing a virtual mining system were discussed: optimizing 3D models to keep the polygon number in VR system within target hardware's processing ability; optimizing texture database to save texture memory with perfect visual effect; optimizing database hierarchy structure to accelerate model retrieval; and optimizing LOD hierarchy structure to speed up rendering. 展开更多
关键词 virtual mining system real-time performance OPTIMIZATION MultiGen creator
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Clinical characteristics of Danshen Ligustrazine injection in the treatment of coronary heart disease with hypertension-A real world study
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作者 SUN Lin-xi Gao Yang +3 位作者 XIE Yan-ming Zhang Li-dan XU Hong-yan ZHUANG Yan 《Journal of Hainan Medical University》 2022年第17期39-46,共8页
Objective:To explore the characteristics and rules of Danshen Ligustrazine Injection in the treatment of coronary heart disease with hypertension.Methods:From the information systems of 12 tertiary tier-one hospitals ... Objective:To explore the characteristics and rules of Danshen Ligustrazine Injection in the treatment of coronary heart disease with hypertension.Methods:From the information systems of 12 tertiary tier-one hospitals across the country,we extracted the medical data of the application of Danshen Ligustrazine Injection in the treatment of patients with coronary heart disease and hypertension.After normalization,the model was established by Apriori algorithm,and the association rules were analyzed by Clementine 12.0 software.Results:Most of the 1928 patients were between 75 and 90 years old(54.26%).There were more males than females,most with type 2 diabetes,cerebral infarction,etc.Each dose was more than 10 mL(52.78%).Aspirin enteric-coated tablets(67.63%),L-carnitine injection(58.77%),and atorvastatin calcium capsules(50.93%)were often used in combination with safflower yellow pigment(22.20%),Shexiang Baoxin Pill(16.55%),Suxiao Jiuxin Pill(15.09%);the most commonly used combination of western medicine was anticoagulant thrombolytic and antiplatelet drugs(85.84%),and the type of Chinese medicine was Huoxuehuayu(72.98%);The most common combination of two western medicines was L-carnitine injection+aspirin enteric-coated tablets,with a support of 41.9%;The most common combination of two Chinese and western medicines is western medicine·anti-anginal medicine+western medicine·anticoagulant thrombolytic and antiplatelet drugs with a support of 67.6%.Conclusion:Danshen Ligustrazine injection is mainly used in elderly patients with coronary heart disease and hypertension,with many comorbidities.The dosage standard needs to be optimized.The combination of drugs and guidelines should coordinate with each other,which provide clues for clinical diagnosis and treatment and optimization of medication. 展开更多
关键词 real world Danshen Ligustrazine Injection Coronary heart disease HYPERTENSION combination medication
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Design and Research of Distributed Real TimeSurveillance Control System
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《计算机科学与技术汇刊(中英文版)》 2015年第2期40-43,共4页
Distributed real time surveillance control system is used especially in distributed computer measure and control system, mostly inwidely dispersed measure points without human surveillance. This paper describes theory... Distributed real time surveillance control system is used especially in distributed computer measure and control system, mostly inwidely dispersed measure points without human surveillance. This paper describes theory、construction、control strategy, stabilityanalysis of distributed real time supervisory control and data acquisition system, implements distributed measure signals collectionand design of supervisory control system. The realization of virtual instrument based on VC++ can accomplish measurementsignals acquisition, storage, display and analysis, also the result of surveillance control system is provided, and shows thefunctional powerful agility of virtual instrument based on VC++. 展开更多
关键词 real Time DISTRIBUTED virtual Instrument
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Association rules analysis of Fufang Kushen injection in combination with traditional Chinese medicine or modern medications in treating Cervical cancer: real-world retrospective study
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作者 Fu-Mei Liu Yan-Ming Xie +3 位作者 Yin Zhang Cen Chen Chang Zhang Yan Zhuang 《Medical Data Mining》 2018年第1期2-9,共8页
Objective: The present study aimed to analyze the association rules of Fufang Kushen injection in combination with other traditional Chinese medicine ( TCM) or modern medications in treating cervical cancer (CC) based... Objective: The present study aimed to analyze the association rules of Fufang Kushen injection in combination with other traditional Chinese medicine ( TCM) or modern medications in treating cervical cancer (CC) based on the electrical medical records extracted from real-world hospital information system. Methods: The clinicians’ prescriptions regarding to the combination of with TCM or modern medications were from hospital information system electronic medical data integration warehouse established by the Institute of Basic Medical Research of Chinese Medicine, China Academy of Chinese Medical Sciences, which integrated the hospital information system data of 22 hospitals. The association rules of the drug characteristics were analyzed through Apriori algorithm. Results: A total of 839 patients with CC were included. We found that is often combined with prescriptions which could clear heat, remove toxicity, supplement Qi. also combined with chemotherapeutic drugs, immunomodulatory drugs, 5-HT receptor blockers, and glucocorticoids. The combination presents a specific law. Conclusion: Fufang Kushen injection combined with hepatoprotective drugs, immunomodulators and glucocorticoids is often used to treat cervical cancer. 展开更多
关键词 Fufang Kushen injection combinationS CERVICAL cancer real world Association rules
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AN ALGORITHM OF DISTANCE CALCULATION BETWEEN A BOUNDING SPHERE AND A BOUNDING CSG PRIMITIVE 被引量:1
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作者 屠立忠 季平 +1 位作者 左敦稳 王珉 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1999年第2期165-169,共5页
A simple method for calculating distance between a solid sphere and a constructive solid geometry (CSG) so lid primitive (including block, cone, cylinder, sphere, wedge and torus) is derived to support the collision ... A simple method for calculating distance between a solid sphere and a constructive solid geometry (CSG) so lid primitive (including block, cone, cylinder, sphere, wedge and torus) is derived to support the collision detection algorithm. By decomposing the whole space into relative positions and geometric features of the sphere and the primitive considered, closed form distance formula are got. These calculations are very useful in the real time collision detection in which primitives are used as bounding volumes of complex objects. 展开更多
关键词 distance calculation collision detection real time constructive solid geometry (CSG) virtual reality
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Real time detection of antibody-antigen interaction using a laser scanning confocal imaging-surface plasmon resonance system 被引量:4
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作者 Zhang Hong-Yan Yang Li-Quan +5 位作者 Meng Lan Nie Jia-Cai Ning Ting-Yin Liu Wei-Min Sun Jia-Yu Wang Peng-Fei 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第2期224-228,共5页
A laser scanning confocal imaging-surface plasmon resonance (LSCI-SPR) instrument integrated with a wavelength-dependent surface plasmon resonance (SPR) sensor and a laser scanning confocal microscopy (LSCM) is ... A laser scanning confocal imaging-surface plasmon resonance (LSCI-SPR) instrument integrated with a wavelength-dependent surface plasmon resonance (SPR) sensor and a laser scanning confocal microscopy (LSCM) is built to detect the bonding process of human IgG and fluorescent-labeled affinity purified antibodies in real time. The shifts of resonant wavelength at different reaction time stages are obtained by SPR, corresponding well with the changes of the fluorescence intensity collected by using LSCM. The instrument shows the merits of the combination and complementation of the SPR and LSCM, with such advantages as quantificational analysis, high spatial resolution and real time monitor, which are of great importance for practical applications in biosensor and life science. 展开更多
关键词 laser scanning confocal imaging-surface plasmon resonance combination COMPLEMENTATION real time
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Parallel Sensing in Metaverses: Virtual-Real Interactive Smart Systems for “6S” Sensing 被引量:7
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作者 Yu Shen Yuhang Liu +1 位作者 Yonglin Tian Xiaoxiang Na 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2022年第12期2047-2054,共8页
In the construction of Metaverses,sensors that are referred to as the“bridge of information transmission”,play a key role.The functionality and efficiency of today’s sensors,which operate in a manner similar to phy... In the construction of Metaverses,sensors that are referred to as the“bridge of information transmission”,play a key role.The functionality and efficiency of today’s sensors,which operate in a manner similar to physical sensing,are frequently constrained by their hardware and software.In this research,we proposed the Parallel Sensing framework,which includes background,concept,basic methods and typical application of parallel sensing.In our formulation,sensors are redefined as the integration of real physical sensors and virtual software-defined sensors based on parallel intelligence,in order to boost the performance of the sensors.Each sensor will have a parallel counterpart in the virtual world within the framework of parallel sensing.Digital sensors serve as the brain of sensors and maintain the same properties as physical sensors.Parallel sensing allows physical sensors to operate in discrete time periods to conserve energy,while cloud-based descriptive,predictive,and prescriptive sensors operate continuously to offer compensation data and serve as guardians.To better illustrate parallel sensing concept,we show some example applications of parallel sensing such as parallel vision,parallel point cloud and parallel light fields,both of which are designed by construct virtual sensors to extend small real data to virtual big data and then boost the performance of perception models.Experimental results demonstrate the effective of parallel sensing framework.The interaction between the real and virtual worlds enables sensors to operate actively,allowing them to intelligently adapt to various scenarios and ultimately attain the goal of“Cognitive,Parallel,Crypto,Federated,Social and Ecologic”6S sensing. 展开更多
关键词 Parallel Sensing Parallel Intelligence CPSS Metaverses virtual and real Interaction “6S”Sensing.
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Novel 3-dimensional virtual hepatectomy simulation combined with real-time deformation 被引量:22
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作者 Yukio Oshiro Hiroaki Yano +4 位作者 Jun Mitani Sangtae Kim Jaejeong Kim Kiyoshi Fukunaga Nobuhiro Ohkohchi 《World Journal of Gastroenterology》 SCIE CAS 2015年第34期9982-9992,共11页
AIM:To develop a novel 3-dimensional(3D) virtual hepatectomy simulation software,Liversim,to visualize the real-time deformation of the liver.METHODS:We developed a novel real-time virtual hepatectomy simulation softw... AIM:To develop a novel 3-dimensional(3D) virtual hepatectomy simulation software,Liversim,to visualize the real-time deformation of the liver.METHODS:We developed a novel real-time virtual hepatectomy simulation software program called Liversim. The software provides 4 basic functions:viewing 3D models from arbitrary directions,changing the colors and opacities of the models,deforming the models based on user interaction,and incising the liver parenchyma and intrahepatic vessels based on user operations. From April 2010 through 2013,99 patients underwent virtual hepatectomies that used the conventional software program SYNAPSE VINCENT preoperatively. Between April 2012 and October 2013,11 patients received virtual hepatectomies using the novel software program Liversim; these hepatectomies were performed both preoperatively and at the same that the actual hepatectomy was performed in an operating room. The perioperative outcomes were analyzed between the patients for whom SYNAPSE VINCENT was used and those for whom Liversim wasused. Furthermore,medical students and surgical residents were asked to complete questionnaires regarding the new software.RESULTS:There were no obvious discrepancies(i.e.,the emergence of branches in the portal vein or hepatic vein or the depth and direction of the resection line) between our simulation and the actual surgery during the resection process. The median operating time was 304 min(range,110 to 846) in the VINCENT group and 397 min(range,232 to 497) in the Liversim group(P = 0.30). The median amount of intraoperative bleeding was 510 m L(range,18 to 5120) in the VINCENT group and 470 m L(range,130 to 1600) in the Liversim group(P = 0.44). The median postoperative stay was 12 d(range,6 to 100) in the VINCENT group and 13 d(range,9 to 21) in the Liversim group(P = 0.36). There were no significant differences in the preoperative outcomes between the two groups. Liversim was not found to be clinically inferior to SYNAPSE VINCENT. Both students and surgical residents reported that the Liversim image was almost the same as the actual hepatectomy.CONCLUSION:Virtual hepatectomy with real-time deformation of the liver using Liversim is useful for the safe performance of hepatectomies and for surgical education. 展开更多
关键词 LIVER SURGERY SIMULATION virtual HEPATECTOMY real-
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Systematic design method for PI controller with Virtual Resistor-based Active Damping of LCL filter 被引量:4
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作者 Marwa Ben Said-Romdhane Mohmed Wissem Naouar Ilhem Slama-Belkhodja 《Global Energy Interconnection》 2018年第3期319-329,共11页
The Virtual Resistor based Active Damping(VR-AD) is widely employed in converters connected to the grid via LCL filters in order to mitigate the inherent resonance of the filters. Nevertheless, in digitally controlled... The Virtual Resistor based Active Damping(VR-AD) is widely employed in converters connected to the grid via LCL filters in order to mitigate the inherent resonance of the filters. Nevertheless, in digitally controlled systems, the PWM and the calculating delays modify the system characteristics in terms of frequency and phase, thus destabilizing the system and degrading the VR-AD performances, mainly in low switching frequencies. Moreover, the stability of the system is greatly affected under weak grid operation characterized by large grid impedance variation. This paper solves these problems by proposing a systematic, robust and optimized design procedure of voltage oriented PI control(VOC) with VRAD. The considered design procedure ensures robust control(sufficient stability margins) and high quality of grid current(reduced steady-state error and minimized THD value) despite the negative impact of digital time delay, grid impedance variation and filter parameters change. Simulation and experimental results are presented to show robustness and efficiency of the suggested design procedure. 展开更多
关键词 Digital controllers LCL filter Time delay Grid-connected converters virtual Resistor real Resistor VOC Grid impedance variation Controllers design
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APPLICATION RESEARCH OF COMBINATION PRINCIPLE IN CAD FEATURE RECOGNIZATION
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作者 LiGuangrong GongGuangrong DingWuxue 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2005年第2期204-207,共4页
The method of extracting the basic features of part from the file of STEPAP214 of 3-D model is proposed. All faces in the file are the minimal elements. The combination isdone for the faces with geometry restrictions ... The method of extracting the basic features of part from the file of STEPAP214 of 3-D model is proposed. All faces in the file are the minimal elements. The combination isdone for the faces with geometry restrictions and some attributes by the theory of the bestalphabetic tree which is constructed by HU--TUCKER algorithm in combination principle. So the basicfeatures could be attained. This provides the research basis to the more share and integration ofCAD information in the virtual enterprises. Finally, a case is used to illustrate the validity ofthe approach. 展开更多
关键词 virtual enterprise combination optimization FACES Features ATTRIBUTE
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Resource Reconstruction Algorithms for On-demand Allocation in Virtual Computing Resource Pool
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作者 Xiao-Jun Chen Jing Zhang +1 位作者 Jun-Huai Li Xiang Li 《International Journal of Automation and computing》 EI 2012年第2期142-154,共13页
Resource reconstruction algorithms are studied in this paper to solve the problem of resource on-demand allocation and improve the efficiency of resource utilization in virtual computing resource pool. Based on the id... Resource reconstruction algorithms are studied in this paper to solve the problem of resource on-demand allocation and improve the efficiency of resource utilization in virtual computing resource pool. Based on the idea of resource virtualization and the analysis of the resource status transition, the resource allocation process and the necessity of resource reconstruction are presented, l^esource reconstruction algorithms are designed to determine the resource reconstruction types, and it is shown that they can achieve the goal of resource on-demand allocation through three methodologies: resource combination, resource split, and resource random adjustment. The effects that the resource users have on the resource reconstruction results, the deviation between resources and requirements, and the uniformity of resource distribution are studied by three experiments. The experiments show that resource reconstruction has a close relationship with resource requirements, but it is not the same with current distribution of resources. The algorithms can complete the resource adjustment with a lower cost and form the logic resources to match the demands of resource users easily. 展开更多
关键词 virtual computing systems virtual computing resource pool resource allocation resource reconstruction status tran-sition resource combination resource split resource adjustment.
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The influence of PRF on BER performance of THSS UWB radio systemwith PPM in dense multipath fading environments
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作者 JiaLin ZhangZhongzhao 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2005年第2期245-252,共8页
The influence of pulse repetition frequency(PRF) on performance of wireless digital time hopping spread spectrum(THSS) ultrawide bandwidth(UWB) radio systems with PPM in dense multipath fading environments is firstly ... The influence of pulse repetition frequency(PRF) on performance of wireless digital time hopping spread spectrum(THSS) ultrawide bandwidth(UWB) radio systems with PPM in dense multipath fading environments is firstly investigated. The receiver used in this UWB system is a hybrid selection/maximal-ratio combining(H-S/MRC) diversity receiver in which L strongest multipath components out of N multipath diversity branches are selected and combined using maximal-ratio combining. The exact expressions for the bit error rate(BER) of this UWB system are firstly derived by using the virtual branch technique in term of PRF, the number of multipath components selected and combined L, and multipath spread of the channel and then this BER performance is evaluated. With the computer simulation for impulses having different pulse shapes, numerical results show that PRF, as well as pulse shape and the number of multipath diversity branches selected and combined L, has much effect on the BER performance of this UWB system in dense multipath fading environments. As PRF increases, the BER performance of this UWB system is much degraded under the conditions of fixed L and pulse shape. 展开更多
关键词 ultrawide bandwidth radio time hopping virtual branch technique diversity combining multipath fading channels.
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