Xem 1-20 trên 144 kết quả Four articles
  • The rhizome of Angelica sinensis (Oliv.) Diels (Umbelliferae) is known as "Danggui" in China, has been used widely in traditional Chinese medicine to treat irregular menstruation, anaemia, headache, hypertension, chronic asthma and rheumatism. From the ethyl acetate extract of its roots four phthalides have been isolated. Their structures were identified by MS and NMR spectroscopic methods to be (Z)-3-butylidenphthalide, senkyunolide H, senkyunolide I and dihydroxyligustilide.

    pdf4p uocvong04 24-09-2015 5 2   Download

  • The four articles which make up this volume were originally published in successive issues of the Monthly Book Review of the Manitoba Free Press and are herewith assembled in book form in response to what appears to be a somewhat general request that they be made available in a more permanent form. J. W. D. October 13 1922.

    pdf66p culao1122 11-01-2013 14 1   Download

  • We present four techniques for online handling of Out-of-Vocabulary words in Phrasebased Statistical Machine Translation. The techniques use spelling expansion, morphological expansion, dictionary term expansion and proper name transliteration to reuse or extend a phrase table. We compare the performance of these techniques and combine them. Our results show a consistent improvement over a state-of-the-art baseline in terms of BLEU and a manual error analysis.

    pdf4p hongphan_1 15-04-2013 14 1   Download

  • There are fifteen questions in part A. Forty percent are simple sentences, others are complex sentences. All the words and phrases in the four answers are grammatically correct when considered independently. But just only one’s is correct about meaning. You should spend time to find out what type of structure is need to form complete sentence. Don’t waste time to find the error in the answers.

    doc10p phyteach 03-01-2010 622 373   Download

  • Trong chủ đề này các bạn hãy kể về gia đình mình: gồm mấy người ,tuổi tác ,nghề nghiệp ,tính tình …của từng người ,các bài viết cũng có độ dài như lần trứoc .Chú ý tránh những lỗi từ vựng và ngữ pháp mà mình đã nhắc nhở Có thể bắt đầu là :There are (four) people in my family…..

    pdf18p littlechick108 08-04-2011 134 65   Download

  • English article for your reference to improve English proficiency. One way you can achieve this is to read a lot and look up any words you come across that you do not know. Another is to study vocabulary with the aid of a book, preferably one that provides many opportunities for you to actually practice using the words (like this one).

    pdf112p hoanngothanh 27-03-2011 127 54   Download

  • Hi everyone. Welcome to the point of view stories for "Assisted Living". I hope that you're in a great mood and that you're excited to get started. Today we’re going to hear the same story from the "Assisted Living" mini-story told in four different points of view. So we’ll hear four different versions of this story. Okay, here we go. Jackie has her hands full. She works as a lawyer for twelve hours every day. She needs a vacation because she's really stressed out. Jackie’s cousin Mary lives in Thailand. She tells Jackie to visit her in Thailand....

    pdf3p japinto 02-12-2010 112 28   Download

  • A preliminary study was carried out in mid 1999 on the status and potential impact of the introduction of exotic fish species in the Mekong Basin. Introductions have been made for four main purposes: aquaculture, stocking into lakes and reservoirs, pest control (mosquito) and the aquarium fish trade. Introductions of exotic species and movements of large quantities of fish for stocking are accompanied by risks to the environment, the possibility of native fish species declining through competition, predation or genetic interference, and the possible spread of disease....

    pdf60p nguyenngocsonctu 01-12-2010 74 18   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Common Fixed Point Theorems for Four Mappings on Cone Metric Type Space

    pdf15p sting05 09-02-2012 28 8   Download

  • Design patterns provide good solutions for problems occurred in the design stage. Using design patterns in the software development processes helps improve productivity and quality of software products. Pattern Oriented Analysis and Design Process has four steps related to patterns, namely the acquaintance with design patterns in the pattern library, the retrieval of the pattern candidate, the selection of suitable patterns and the application of selected patterns.

    pdf6p tuanlocmuido 13-12-2012 30 8   Download

  • Bảo vệ cổ đông, thành viên công ti bằng công cụ pháp luật Trong lí luận khoa học pháp lí thế giới khoảng 2 thập kỉ gần đây, người ta nói nhiều đến vai trò của pháp luật trong việc bảo vệ cổ đông (law matters thesis), bắt đầu là các nghiên cứu được công bố cuối thập niên thứ 4 của thế kỉ XX của nhóm bốn giáo sư nổi tiếng của Bắc Mỹ đứng đầu là giáo sư La Porta (the Gang of Four - tạm dịch là Nhóm bộ tứ).(2) Các nghiên cứu ở phương Tây...

    pdf8p dontetvui 23-01-2013 23 7   Download

  • We control for risk exposures in measuring the funds' ability to outperform following the four factor approach advocated by Carhart (1997). We start with a Pan-European four-factor model.

    pdf33p khanhchilam 29-03-2013 22 7   Download

  • Part A of this report will include two sections, which understand who I as a learner am; and implication for my future career choice. Firstly, definitions of ‘learning’ will be mentioned through understanding of learner. Besides, this going to find out on my own personal analyses about learning styles through four psychological tests, which are VARK, the Myers Briggs Type Indicators (MBTI), the Honey and Mumford Learning styles Questionnaire, and the Belbin Test.

    doc88p linhtran_newuk 26-07-2013 31 7   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Solutions and Green’s Functions for Boundary Value Problems of Second-Order Four-Point Functional Difference Equations

    pdf22p sting06 13-02-2012 23 6   Download

  • The switching regulator is increasing in popularity because it offers the advantages of higher power conversion efficiency and increased design flexibility (multiple output voltages of different polarities can be generated from a single input voltage). This paper will detail the operating principles of the four most commonly used switching converter types: Buck: used the reduce a DC voltage to a lower DC voltage. Boost: provides an output voltage that is higher than the input. Buck-Boost (invert): an output voltage is generated opposite in polarity to the input....

    pdf34p trucden 26-01-2013 37 6   Download

  • The education system in the UK is divided into four main parts, primary education, secondary education, further education and higher education. Children in the UK have to legally attend primary and secondary education which runs from about 5 years old until the student is 16 years old. The education system in the UK is also split into "key stages" which breaks down as follows: 1. Key Stage 1 - 5 to 7 years old 2. Key Stage 2 - 7 to 11 years old 3. Key Stage 3 - 11 to 14 years old 4. Key Stage 4 - 14 to 16 years old...

    doc2p giangoctruong 29-03-2013 39 6   Download

  • We describe a simple variant of the interpolated Markov model with non-emitting state transitions and prove that it is strictly more powerful than any Markov model. Empirical results demonstrate that the non-emitting model outperforms the interpolated model on the Brown corpus and on the Wall Street Journal under a wide range of experimental conditions. The nonemitting model is also much less prone to overtraining. The remainder of our article consists of four sections.

    pdf5p bunthai_1 06-05-2013 15 6   Download

  • The water soluble crude polysaccharide obtained from cultured mycelia of Cordyceps militaris (CPM) by hot water extraction followed by ethanol precipitation was fractionated by DEAE cellulose and Sepharose CL-6B column chromatography. This fractionation process resulted in four polysaccharide fractions that were termed CPMN Fr I, CPMN Fr II, CPMN Fr III, and CPMN Fr IV. Of these fractions, CPMN Fr III was able to upregulate the functional events mediated by activated macrophages, such as production of nitric oxide (NO) and expression of cytokines (IL-1b and TNF-a).

    pdf7p the_eye_1991 18-09-2012 29 5   Download

  • Digital Elevation Model (DEM) is an important component of GIS applications in many socio-economic areas. Especially, DEM has a very important role in monitoring and managing natural resources, preventing natural hazards, and supporting spatial decision making. Usually, DEM is built by interpolation from a limited set of sample points. Thus, the accuracy of the DEM is depended on the used interpolation method.

    pdf8p dem_thanh 22-12-2012 19 5   Download

  • This study briefly summarizes the thunderstorm activities in Vietnam. To predict thunderstorms in the Noi Bai Airport region, the thunderstorm indices are calculated for 64 grid points nearby Noi Bai region from the predicted meteorological fields with RAMS (Regional Atmospheric Modeling System) model. The forecast procedure for thunderstorm is built for this region with four prediction factors, such as CAPEmax, Kimax, SI min, Vtmax in the forecast threshold of 0.6. As a result, the occurrence of thunderstorms reaches 80% for the duration of 36 hours.

    pdf8p dem_thanh 22-12-2012 15 5   Download

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