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Joint inversion of gravity and magnetic data for a two-layer model 被引量:1
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作者 江凡 吴健生 王家林 《Applied Geophysics》 SCIE CSCD 2008年第4期331-339,共9页
Based on the synchronous joint gravity and magnetic inversion of single interface by Pilkington and the need of revealing Cenozoic and crystalline basement thickness in the new round of oil-gas exploration, we propose... Based on the synchronous joint gravity and magnetic inversion of single interface by Pilkington and the need of revealing Cenozoic and crystalline basement thickness in the new round of oil-gas exploration, we propose a joint gravity and magnetic inversion methodfor two-layer models by concentrating on the relationship between the change of thicknessI and position of the middle layer and anomaly and discuss the effects of the key parameters. Model tests and application to field data show the validity of this method. 展开更多
关键词 Two-layer model joint inversion of gravity and magnetic data Cenozoic andcrystalline basement
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Progress in Research and Application of Animal Antiparasitic Drugs 被引量:1
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作者 张吉丽 司鸿飞 +2 位作者 李冰 周旭正 张继瑜 《Agricultural Science & Technology》 CAS 2016年第9期2127-2132,2156,共7页
Parasitic disease is one of the most serious diseases in humans and animals. Animal antiparasitic drugs are mainly used to kill, expel and prevent animal parasites, and they are divided into anthelmintics, antiprotozo... Parasitic disease is one of the most serious diseases in humans and animals. Animal antiparasitic drugs are mainly used to kill, expel and prevent animal parasites, and they are divided into anthelmintics, antiprotozoals, insecticides, and so on. Animal antiparasitic drugs play an important role in the prevention and control of animal parasitic diseases, healthy development of animal husbandry and security of public health. In recent years, as people pay more attention paid to parasitic diseases, the research and development of antiparasitic drugs have made great progresses. Mastering the research and application progresses of antiparasitic drugs is of great significance to clinical medication and basic research. This paper reviews the history, current situation, the latest progresses and future development directions of research and application of antiparasitic drugs. 展开更多
关键词 ANIMAL ANTIPROTOZOAL Antheimintic INSECTICIDE Research and application PROSPECT
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Pharmacokinetics of Moclobemide Sustained Release Tablets after Multiple Oral Dose Administration in Healthy Volunteers
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作者 胡道德 毛丹卓 裴元英 《Journal of Chinese Pharmaceutical Sciences》 CAS 2004年第4期249-253,共5页
To investigate the pharmacokinetic characteristics of moclobemide sustainedrelease tablets after multiple oral dose administration in healthy Chinese volunteers. MethodsMoclobemide sustained release tablets were given... To investigate the pharmacokinetic characteristics of moclobemide sustainedrelease tablets after multiple oral dose administration in healthy Chinese volunteers. MethodsMoclobemide sustained release tablets were given as a multiple oral dose regimen of 300 mg oncedaily for five consecutive days to 12 healthy volunteers. The concentrations of moclobemide inplasma were determined by reversed-phase high performance liquid chromatography. The partialpharmacokinetic parameters were calculated using 3p97 pharmacokinetic program. Results Theconcentration-time profile fitted an one-compartment model best. The steady-state pharmacokineticparameters of moclobemide sustained release tablets after multiple oral doses were as follows:C_(max) was (1 950 +- 156) μg· L^(-1), T_(max) was (6.00 +-1.55) h, T_(1/2(kel)) was (3.14 +-0.12)h, AUC_(ss 0-24) was (22 836 +- 1 842) μg·h· L^(-1), MRT was (7.68+-0.36) h, CL/F_((s)) was(20.2+-2.1) L·h^(-1), and V/F_((c)) was (91.4+-9.4) L, respectively. No marked adverse events werenoted during this study. Conclusion The formulation has a sustained-release effect and goodtolerance in the healthy volunteers, which provides useful information for clinical practice. 展开更多
关键词 moclobemide sustained release tablets high performance liquidchromatography phar- macokinetics multiple dose
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唐宋词审美的钥匙──浅评《唐宋词读法》
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作者 陈芒 《赣南师范学院学报》 1995年第4期90-91,共2页
唐宋词审美的钥匙──浅评《唐宋词读法》陈芒在中国古代文学的发展进程中,唐宋一直被公认为是韵文文学发展的黄金时代,而这一时代正是词这一文学艺术登峰造极的时期。词萌芽于隋代,中经民间词与文人词的缓慢过渡,至晚唐五代方告成... 唐宋词审美的钥匙──浅评《唐宋词读法》陈芒在中国古代文学的发展进程中,唐宋一直被公认为是韵文文学发展的黄金时代,而这一时代正是词这一文学艺术登峰造极的时期。词萌芽于隋代,中经民间词与文人词的缓慢过渡,至晚唐五代方告成熟与繁荣,进入两宋,词乃成为与诗、... 展开更多
关键词 唐宋词 结构体式 审美 文学艺术 浅评 阅读鉴赏 中国古代文学 应用──研究 宏观思考 题材内容
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Constructivism-based Course Books' Compiling and a New Mode of Teaching
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作者 王玉雯 《Sino-US English Teaching》 2007年第3期1-5,共5页
The paper explores the positive impact of constructivism-based course books compiling and the new mode of teaching, analyzes their effects on helping students improve their integrated English language competence, and ... The paper explores the positive impact of constructivism-based course books compiling and the new mode of teaching, analyzes their effects on helping students improve their integrated English language competence, and pointing out that the development of teaching non-English major graduate students has raised new demands for teaching devices, teaching methodology and new roles of teachers and learners. Therefore, New Century Graduate English Series, as constructivism-based course books, has made some beneficial attempts for the implementation of the new graduate English teaching reauirements. 展开更多
关键词 CONSTRUCTIVISM new mode integrated English language competence New Century GraduateEnglish Series
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Multivariate Statistical Process Monitoring and Control: Recent Developments and Applications to Chemical Industry 被引量:39
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作者 梁军 钱积新 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2003年第2期191-203,共13页
Multivariate statistical process monitoring and control (MSPM&C) methods for chemical process monitoring with statistical projection techniques such as principal component analysis (PCA) and partial least squares ... Multivariate statistical process monitoring and control (MSPM&C) methods for chemical process monitoring with statistical projection techniques such as principal component analysis (PCA) and partial least squares (PLS) are surveyed in this paper. The four-step procedure of performing MSPM&C for chemical process, modeling of processes, detecting abnormal events or faults, identifying the variable(s) responsible for the faults and diagnosing the source cause for the abnormal behavior, is analyzed. Several main research directions of MSPM&C reported in the literature are discussed, such as multi-way principal component analysis (MPCA) for batch process, statistical monitoring and control for nonlinear process, dynamic PCA and dynamic PLS, and on-line quality control by inferential models. Industrial applications of MSPM&C to several typical chemical processes, such as chemical reactor, distillation column, polymerization process, petroleum refinery units, are summarized. Finally, some concluding remarks and future considerations are made. 展开更多
关键词 multivariate statistical process monitoring and control (MSPM&C) fault detection and isolation (FDI) principal component analysis (PCA) partial least squares (PLS) quality control inferential model
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The Agricultural Technology for Manuring and Sowing Simultaneously Applied to Summer Corn "Jinzhengda" 被引量:2
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作者 Dongyi CHEN Fangju ZI +4 位作者 Xiaoren CHEN Qingju WANG Jing ZHANG Yongxian CHEN Qishan LIU 《Agricultural Science & Technology》 CAS 2017年第1期110-113,共4页
[Objective] The aim was to get a high yield and simplify fertilization of summer corn in moisture soils in the east of Henan province. [Method] Effects of slow-release fertilizers special for summer corn on its yield,... [Objective] The aim was to get a high yield and simplify fertilization of summer corn in moisture soils in the east of Henan province. [Method] Effects of slow-release fertilizers special for summer corn on its yield, economic benefits and resistance. [Result] By the slow-release fertilizers containing 45% slow-release nitrogen, thousand-kernel weight and the number of ear went up by 28 g and 16 kernels, respectively. Slow-release fertilizers advanced nutrient uptake by summer corns and kept soil nitrogen balanced. In comparison to local fertilization approach, corn yield grew by 13.5% and net profit went up by 1 920 yuan/hm^2 by same-term application technique of seed & slow-release fertilizer in comparison to local methods. In comparison to normal fertilizers containing the same-quantity nutrients, corn yield grew by 10.3% and net profit by 1 215 yuan/hm^2. [Conclusion] The research provides references for slow-release fertilizer promotion in production of corn in Zhoukou and innovation and integration between agricultural machines and techniques. 展开更多
关键词 Summer corn Moisture soil areas Slow-release fertilizer
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Material-flow Modeling Technology and Its Application in Manufacturing Execution Systems of Petrochemical Industry 被引量:4
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作者 李备芳 刘鲁 +1 位作者 朱炜 荣冈 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第1期71-78,共8页
The management and control of material flow forms the core of manufacturing execution systems (MES) in the petrochemical industry. The bottleneck in the application of MES is the ability to match the material-flow m... The management and control of material flow forms the core of manufacturing execution systems (MES) in the petrochemical industry. The bottleneck in the application of MES is the ability to match the material-flow model with the production processes. A dynamic material-flow model is proposed in this paper after an analysis of the material-flow characteristics of the production process in a petrochemical industry. The main material-flow events are described, including the movement, storage, shifting, recycling, and elimination of the materials. The spatial and temporal characters of the material-flow events are described, and the material-flow model is constructed. The dynamic material-flow model introduced herein is the basis for other subsystems in the MES. In addition, it is the subsystem with the least scale in MES. The dynamic-modeling method of material flow has been applied in the development of the SinoMES model. It helps the petrochemical plant to manage the entire flow information related to tanks and equipments from the aspects of measurement, storage, movement, and the remaining balance of the material. As a result, it matches the production process by error elimination and data reconciliation. In addition, it facilitates the integration of application modules into the MES and guarantees the potential development of SinoMES in future applications. 展开更多
关键词 manufacturing execution systems dynamic material-flow model material-flow events
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Research on the Application of Time Structure Variation Analysis to the Jiashi-Bachu Earthquake Swarm Sequence 被引量:2
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作者 Yang Xin Long Haiying +1 位作者 Shangguan Wenming Nie Xiaohong 《Earthquake Research in China》 2008年第3期251-264,共14页
In 1997 - 2003, 27 earthquakes with M≥ 5.0 occurred in the Jiashi-Bachu area of Xinjiang. It was a rare strong earthquake swarm activity. The earthquake swarm has three time segments of activity with different magnit... In 1997 - 2003, 27 earthquakes with M≥ 5.0 occurred in the Jiashi-Bachu area of Xinjiang. It was a rare strong earthquake swarm activity. The earthquake swarm has three time segments of activity with different magnitudes in the years 1997, 1998 and 2003. In different time segments, the seismic activity showed strengthenin-qguiet changes in various degrees before earthquakes with M ≥ 5.0. In order to delimitate effectively the precursory meaning of the clustering (strengthening) quiet change in sequence and to seek the time criterion for impending prediction, the nonlinear characteristics of seismic activity have been used to analyze the time structure characteristics of the earthquake swarm sequence, and further to forecast the development tendency of earthquake sequences in the future. Using the sequence catalogue recorded by the Kashi Station, and taking the earthquakes with Ms≥ 5.0 in the sequence as the starting point and the next earthquake with Ms = 5.0 as the end, statistical analysis has been performed on the time structure relations of the earthquake sequence in different stages. The main results are as follows: (1) Before the major earthquakes with M ≥ 5.0 in the swarm sequence, the time variation coefficient (δ-value) has abnormal demonstrations to different degrees. (2) Within 10 days after δ= 1, occurrence of earthquakes with M ≥ 5.0 in the swarm is very possible. (3) The time variation coefficient has three types of change. (4) The change process before earthquakes with M5.0 is similar to that before earthquakes with M6.0, with little difference in the threshold value. In the earthquake swarm sequence, it is difficult to delimitate accurately the attribute of the current sequences (foreshock or aftershock sequence) and to judge the magnitude of the follow-up earthquake by δ-value. We can only make the judgment that earthquakes with M5.0 are likely to occur in the sequence. (5) The critical clustering characteristics of the sequence are hierarchical. Only corresponding to a certain magnitude can the sequence have the variation state of critical clustering. (6) The coefficient of the time variation has a clear meaning in physics. After the clustering-quiet state of earthquake activity has appeared, it can describe clearly the randomness of the seismogenic system. Furthermore, it can efficiently clarify whether or not the clustering quiescence variation is of some prognostic meaning. In the case that the earthquake frequency attenuation is essentially normal (h 〉 1 ) and there is no remarkable clustering-quiescence state, it is still possible to discover the abnormal change of the sequence from the time variation coefficient. On the contrary, in the later period of swarm activity, after the appearance of many seismic quiescence phenomena, this coefficient did not appear abnormally, even when h 〈 1, suggesting that the δ-value diagnosis is more universal. 展开更多
关键词 Time variation coefficient Earthquake clustering RANDOMNESS Time structure ofearthquake sequence Jiashi earthquake swarm
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The gangue preparation coagulant (PFASS) experiment research and application 被引量:1
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作者 郑景华 刘志斌 罗克杰 《Journal of Coal Science & Engineering(China)》 2007年第2期199-201,共3页
In order to design a new technological process system to take the polymeric ferric aluminum silicate sulfate(PFASS) and to apply it in wastewater processing, the chemical composition analysis was carried on to the F... In order to design a new technological process system to take the polymeric ferric aluminum silicate sulfate(PFASS) and to apply it in wastewater processing, the chemical composition analysis was carried on to the Fuxin gangue, adopted the orthogonal experiment method to obtain optimum response condition of with the acid pickling taking the aluminum in the gangue and with alkali extracting taking the silicon in the gangue, The experiments indicate that the sample chemistry content which tests elect completely conform to the preparation inorganic polymer water treatment coagulant request standard. Used the polymeric ferric aluminum silicate sulfate results in which with the system take as the coagulant of treatment wastewater, used the mercerizing degree, the wastewater pH value, the coagulation time, the coagulant throws increment factors and so on to test and verify its influence on the waste water processing. The result indicates that by using this craft production PFASS in waste water processing, after the processed waste water achieves the emission standard, the processing effect is good. 展开更多
关键词 GANGUE COAGULANT polymeric ferric aluminum silicate sulfate orthogonal experiment water treatment
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Railway intelligent transportation system and its applications 被引量:4
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作者 Qin Yong Jia Limin Zhang Yuan 《Engineering Sciences》 EI 2011年第1期53-59,共7页
With the development of artificial intelligence, communication, computer and other related technologies, it becomes feasible to rebuild traditional railway with such advanced technologies in order to establish a new g... With the development of artificial intelligence, communication, computer and other related technologies, it becomes feasible to rebuild traditional railway with such advanced technologies in order to establish a new generation railway transport system. The railway intelligent transportation system is the trend of railway transportation system in China, and it is also the research focus of international railway transport industry. This paper presents the definition, characters, architecture, key technologies and developing pattern of the RITS(railway intelligent transportation system). Then three typical applications are introduced. Finally, the prospect of the RITS is summarized. 展开更多
关键词 RITS ARCHITECTURE key technologies developing pattern APPLICATIONS
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A Review of Wideband Circularly Polarized Dielectric Resonator Antennas 被引量:1
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作者 Ubaid Ullah Mohd Fadzil Ain Zainal Arifin Ahmad 《China Communications》 SCIE CSCD 2017年第6期65-79,共15页
This article presents a technical review of circularly polarized(CP) dielectric resonator antennas(DRA) for wideband applications.The primary objective of this review is,to highlight the techniques used by different r... This article presents a technical review of circularly polarized(CP) dielectric resonator antennas(DRA) for wideband applications.The primary objective of this review is,to highlight the techniques used by different researchers for generating circular polarization in DRA.First,a general idea of circular polarization and it advantages over linear polarization is presented,and then all the major developments made in the CP DRA are highlighted.The emphasis of the paper is on the wideband circularly polarized dielectric resonator antenna.The current state of the art and all the realizable features of the CP DRA are addressed comprehensively.Finally,some recommendations for future CP DRAs are given and the paper ends with concluding remarks. 展开更多
关键词 circularly polarized dielectric resonator antenna dielectric resonator antenna circular polarization techniques
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Estimating Fatty Acid Composition of Infant Buccal Mucosal Cells by Capillary Gas Chromatography
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作者 陈菲 张伟利 +2 位作者 李方 朱晓东 朱建幸 《Journal of Donghua University(English Edition)》 EI CAS 2008年第5期538-542,共5页
Long chain polyunsaturated fatty adds, i. e., docosahexaenoic acid (DHA or C22 : 6n - 3), amchidonic acid (AA or C20 : 4n -6) have been identified as essential fatty acids and play an important role in growth an... Long chain polyunsaturated fatty adds, i. e., docosahexaenoic acid (DHA or C22 : 6n - 3), amchidonic acid (AA or C20 : 4n -6) have been identified as essential fatty acids and play an important role in growth and development of infants. Measurement of fatty acid composition is usually by collection of blood, but to obtain blood in infants is difficult. Nowadays, the fatty acid composition can be estimated by collecting buccal mucosal cells, which can avoid repeated blood sampling. The of this paper is to compare the fatty acid composition of cheek cells with that of plasma and red blood cells (RBCs). In this study, twenty-seven infants were enrolled, and buccal mucosal cells and blood samples were obtained from these infants of the same time. Fatty acid composition of buccal mucosal cells, plasma and RBCs were measured by capillary gas chromatography. The results show that the contents of AA and DHA in the buccal macosal cells are correlated well with that in the plasma [r=0.36 (P=0.042) and r =0.38 (P =0.033), respectively]. The ratio of AA to DHA is 1.32% in buccal mucosal cells, 1.60% in plasma and 1.55% in RBCs and there are no significant differences among groups (P = 0.134). It shows that the fatty acid composition in buccal macosal cells can reflect the fat nutrition status in infants and can be detected by capillary gas chromatography. Estimating fatty acid composition of buceal mucosal cells in infants by capillary gas chromatography is feasible, and because of its noninvasiveness, it can be suitable for nutrition research in infants. 展开更多
关键词 GAS-CHROMATOGRAPHY buccal mucosal cells .fatty acid INFANT
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Commercial Applications of Paraxylene Adsorbents RAX-2000A and RAX-3000 被引量:3
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作者 Li Ben Wang Huiguo +2 位作者 Yu Zhuo Wang Dehua Wu Wei 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2013年第1期10-13,共4页
The RAX series paraxylene (PX) adsorbents RAX-2000A and RAX-3000, are developed by the Sinopec Re- search Institute of Petroleum Processing (RIPP) and manufactured by the Sinopec Catalyst Company. Performance test... The RAX series paraxylene (PX) adsorbents RAX-2000A and RAX-3000, are developed by the Sinopec Re- search Institute of Petroleum Processing (RIPP) and manufactured by the Sinopec Catalyst Company. Performance test of RAX-2000A showed that the average purity of the PX product reached 99.81%, with an average PX yield of 98.6% per pass. The new generation of PX adsorbents, RAX-3000 not only retains most advantages of the adsorbent RAX-2000A, but also has higher selective adsorption capacity by at least 8%. The actual unit production capability of the adsorbent RAX- 3000 was increased by about 18%. The RAX series PX adsorbents exhibited good adaptability to unfavorable feedstock containing high ethyl benzene (EB) fraction besides their better mechanical strength. Preliminary test results indicated that compared to the adsorbent RAX-2000A, the A/Fa and D/F relating to the adsorbent RAX-3000 were notably decreased due to the hi^her selective adsorotion canacitv of the adsorbent RAX-3000. 展开更多
关键词 paraxylene adsorbent simulated moving bed RAX-2000A RAX-3000 aromatics adsorptive separation
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The Temporal and Spatial Variability of the Phenological Phases Connected with the Pollen Season of the Main "Allergens" in the Czech Republic within the Period 1991-2010
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作者 Hajkova Lenka Richterova Dasa Nekovar Jiri 《Journal of Physical Science and Application》 2011年第2期107-117,共11页
Nature and its exploration is one of the most frequent objects of scientific research. Phenology can be described either as the study of natural events, or of biological events, in relation to climate. The Czech Hydro... Nature and its exploration is one of the most frequent objects of scientific research. Phenology can be described either as the study of natural events, or of biological events, in relation to climate. The Czech Hydrometeorological Institute operates phenological network (45 wild plants) with allergology important species within the observation program (the program includes among other species also the Common Hazel (Corylus avellana L.), the Common Alder (Alnus glutinosa (L.) Gaert.), the Silver Birch (Betula pendula Roth.), the Meadow Foxtail (Alopecurus pratensis L.) and the Cocks Foot (Dactyl& glomerata L.)). We have statistically evaluated the phenological stages closely connected with the pollen grains release into the air (the beginning of flowering-BBCH 61 and the end of flowering-BBCH 69) including maps creation. The processed period was within last twenty years 1991-2010. The maps were processed using geographic information systems (Application Clidata-GIS, method Clidata-DEM). The input data were used the mean dates of phenophase entrance from the twenty year period 1991-2010. The mean onset date of the beginning of flowering was between 24th February and the 24th March (the Common Hazel), between 6th March and 2nd April (the Common Alder), between 13th April and 7th May (the Silver Birch), between 5thMay and 23rd May (the Meadow Foxtail) and between 16th May and 12th June (the Cocks Foot). The mean onset date of the end of flowering was from 18th March till the 15th April (the Common Hazel), from 27th March till 19th April (the Common Alder), from 28th April till 21st May (the Silver Birch), from 25th May till 6th June (the Meadow Foxtail) and from 7th May till 23rd June (the Cocks Foot). The duration of flowering lasts on average with selected allergens as follows: 22-23 days with standard deviation 2.3-5.3 days (the Common Hazel), 14-15 days with standard deviation 2.1-2.7 days (the Common Alder), 17-21 days with standard deviation 1.8-4.2 days (the Silver Birch), 20 days with standard deviations 1.0-2.7 days (the Meadow Foxtail) and 20-22 days with standard deviation 1.3-4.0 days (the Cocks Foot). The phenological phases were much precipitated in the years 2000, 2007 and 2009, on the contrary the onsets were much delayed in the years 1991 and 1996. Part of selected species show an overall tendency to the earlierst onset on the low level of the statistics significance during the 20-year processed period. 展开更多
关键词 PHENOLOGY BIRCH hazel ALDER meadow foxtail cocks foot geographical information system.
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The Natures of Microscopic Particles Depicted by Nonlinear Schrodinger Equation in Quantum Systems
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作者 Xiaofeng Pang 《Journal of Physical Science and Application》 2011年第2期57-84,共28页
When the microscopic particles was depicted by linear Schrodinger equation, we find that the particles have only a wave feature, thus, a series of difficulties and intense disputations occur in quantum mechanics. Thes... When the microscopic particles was depicted by linear Schrodinger equation, we find that the particles have only a wave feature, thus, a series of difficulties and intense disputations occur in quantum mechanics. These problems excite us to consider the nonlinear interactions among the particles or between the particle and background field, which is completely ignored in quantum mechanics. Thus we use the nonlinear Schrodinger equation to describe the natures of microscopic particles. In this case the natures and features of microscopic particles are considerably different from those in quantum mechanics, where the microscopic particles are localized and have truly a wave-particle duality. Meanwhile, they satisfy both the classical dynamics equation and Lagrangian and Hamilton equations and obey the conservation laws of mass, energy and momentum. These natures and features are due to the nonlinear interactions, which are generated in virtue of the interaction between the moved particles and background field through the mechanisms of self-trapping, self-focus and self-condensation. Finally, we verified experimentally the localization and wave-corpuscle features of microscopic particles described by the nonlinear Schrodinger equation using the properties of water soliton and optical-soliton depicted also by the nonlinear Schrodinger equation in water and optical fiber, respectively. Therefore, the new nonlinear quantum theory established on the basis of nonlinear Schrodinger equation is correct and credible. From this investigation we can not only solve difficulties and problems disputed for about a century by plenty of scientists in quantum mechanics but also promote the development of physics and enhance the knowledge and recognition levels to the essences of microscopic matter. 展开更多
关键词 Microscopic particle nonlinear interaction quantum mechanics nonlinear systems nonlinear Schrodinger equation wave-particle duality motion rule.
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Spectroscopic Investigation of Black Pepper (Piper nigrum L.)
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作者 Sarmah Pathak Jumisree Gohain Barua Anurup 《Journal of Physical Science and Application》 2011年第2期118-123,共6页
Black pepper (Piper nigrum L.) is an extensively used medicinal plant in Ayurvedic medicine since ancient times. Here we present Fourier transform infrared (FT-IR) and Fourier transform Raman (FT-Raman) spectra ... Black pepper (Piper nigrum L.) is an extensively used medicinal plant in Ayurvedic medicine since ancient times. Here we present Fourier transform infrared (FT-IR) and Fourier transform Raman (FT-Raman) spectra of black pepper powder, which reveal the presence of some specific functional groups, attributed to the different vibrational bands present. Through the assignment of the vibrational bands, black pepper is shown to have enough carboxyl dimer character, a feature that could make it effective in the treatment of the deadly disease vitiligo. Mineral composition reported with the help of XRF spectra strengthens this. 展开更多
关键词 Black pepper FT-IR spectrum FT-Raman spectrum XRF spectrum vitiligo.
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Can Fuzzy Logic Predict Consumer Ethnocentric Tendencies? An Empirical Analysis in Jordan
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作者 Saeb Farhan AI Ganideh Galeb A. El Refae Mohammad Aljanaideh 《Journal of Physical Science and Application》 2011年第2期100-106,共7页
This paper applies fuzzy logic approach to examine consumer ethnocentrism level for Jordanians based on their socio-psychological variables namely, patriotism, nationalism and internationalism. To model the relationsh... This paper applies fuzzy logic approach to examine consumer ethnocentrism level for Jordanians based on their socio-psychological variables namely, patriotism, nationalism and internationalism. To model the relationships between three inputs namely, patriotism, nationalism and internationalism and one output ethnocentrism MATLAB ANFIS has been used, utilizing a sample of 341 Jordanians live in Amman city. Results indicate that fuzzy logic model can predict correctly consumers ethnocentric tendencies knowing their patriotic, nationalistic and internationalist feelings. Fuzzy logic approach shows that high level of nationalism leads consumers to be ethnocentric. 展开更多
关键词 Fuzzy logic consumer ethnocentrism patriotism.
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Different Methods of Analysis for the Identification of Materials Dated to Different Periods in Egypt
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作者 Safaa Abd El Salam 《Journal of Physical Science and Application》 2011年第2期85-99,共15页
Different questions may be raised during the course of analysis concerning in particular the characterization of materials used, their preparation and application techniques. The different methods used to identify the... Different questions may be raised during the course of analysis concerning in particular the characterization of materials used, their preparation and application techniques. The different methods used to identify the materials of mud brick, limestone, plaster, mortar and pigments, collected from different sites and periods from Egypt, in order to identify and characterize the materials, their structure, composition and their mineralogical compounds were: (Op) optical microscopy, which was used to examine and to identify the materials structures. Methods used in initial examination were: (1) (MCA): Micro-chemical analysis, to identify the nature of the materials and for water-soluble salts, to identify sulphates, chlorides, carbonates, nitrites and nitrates; (2) (SM): Standard methods of wet chemical analysis were used to identify the quantitative and qualitative nature of the, mud building, mortars and their mixtures; (3) (SEM & EDS): Analytical scanning electron microscope with energy dispersive X-ray analysis system was used to examine the micro-morphology and determine the chemical composition of the different materials; (4) (XRD & XRPD): X-ray diffraction to identify the mineralogical compound of the plaster, limestone, mortars and pigments used. From all the results obtained, it was possible to establish the nature of the mortars and their binders as well as some other inclusion. In addition to the identification of the stratigraphy of the layers applied in some samples, the examination and analysis gave details of the materials and the approximate ratio of the amount of additives used. Furthermore, the mineralogical analysis provided information on the main mineralogical phases present in the materials analyzed from the different periods. 展开更多
关键词 Characterization different materials chemical and physical methods.
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INTRODUCTION OF THE HIGH THROUGHPUT SCREENING SYSTEM
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作者 李元 《Chinese Medical Sciences Journal》 CAS CSCD 2001年第3期179-181,共3页
In this article, we introduce the system of high throughput screening (HTS). Its role in new drug study and current development is described. The relationship between research achievements of genome study and new type... In this article, we introduce the system of high throughput screening (HTS). Its role in new drug study and current development is described. The relationship between research achievements of genome study and new type screening model of new drugs is emphasized. The personal opinions of current problems about HTS study in China are raised. 展开更多
关键词 high throughput screening new drug screening recombinant protein target automatic analysis
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