fluid dynamics of packed columns principles of the fluid dynamic design of columns for gasliquid and liquidliquid systems

... 2 Principles of the Fluid Dynamic Design of Packed Columns for Liquid/Liquid Systems 7 Basic Principles of Packed Column Design for Liquid/Liquid Systems 3157.1 Introduction 3157.2 Two-PhaseFlowandOperatingRanges ... structured and random packings. When planning the design of packed columns, ittherefore particularly important to use reliable methods for predicting the mass transfer and hydrodynamic behaviour of the ... Model for Determining the Speciﬁc Flow Rate of the DispersedPhaseatFloodingPointforLiquid/LiquidSystems 3357.4 Conclusions 338Index 351Part 1 Principles of the Fluid Dynamic Design of Packed Columns...

Influence of Polyferric Sulfate Coagulant on the amoA mRNA Expression of Ammonia Oxidizer in Activated Sludge

... of a 491-bp fragment of the amoA gene was carried out using the amoA-1F and amoA-2R primer set specific for amoA gene of AOB belonging to the ß subclass of Proteobacteria. The thermal profiles ... the case of Fe/P molar ratio of 5, copy number of amoA mRNA obviously decreased and 40% of ammonia remained at the end of the batch experiment. According to the result of T-RFLP analysis, there ... range of time-lag is reasonable to explain the result of this study. Certainly, there must be some other factors affecting the ammonia oxidation performance and/ or the amount of amoA mRNA, then...

Teaching speaking skill to non english major students of pre intermediate level at the people’s police academy some suggested techniques and activities

... understand and use the professional terms and structures 2.1.2. Description of the students at the PPA Like students of other colleges and universities, in order to be students of the PPA, they ... Students of the PPA come from all parts of the country: big cities, provinces and mountainous areas. New students of the PPA do not have the same level of English language proficiency. Some of them ... a great deal of difficulties for the teaching and learning. The materials for reference and self-study are not available for teachers and students at the PPA. In the library, there are only...

40
1,122
1

Tài liệu Báo cáo khoa học: Electrostatic role of aromatic ring stacking in the pH-sensitive modulation of a chymotrypsin-type serine protease, Achromobacter protease I pdf

... 3B). The pK2increased as the size of the residue at position 169 increased. The effect of the size of the residue at position 169 may berelated to the solvent accessibility of the side-chain of His210 ... solvent ASA of the side-chain of His210increased with the decrease in size of the side-chain atresidue 169 (Table 1 and Fig. 3A). However, the ASAs of Asp113 and His57 remained constant when the side-chain ... [16,17]. The parallel orientation of the imida-zole–indole pair formed between Trp169 and His210 is the ﬁrst case found in the active sites of serine proteases.Although the role of a proton donor for...

THE EFFECTS OF THREE ORGANIC CHEMICALS ON THE UPPER THERMAL TOLERANCES OF FOUR FRESHWATER FISHES potx

... of ﬁsh in the absence and presence of chemicals were measured individually using the CTMaximum test method. The methodology for conducting the tests for this study was designed on the basis of ... temperature stress and other stressors in the environment. For example, the CTMvalue is appropriate for determining the relative temperatures for loss of equilibrium and death of ﬁsh exposed to ... concentrations of nominated chem-icals affects the CTMaximum values of the four species of ﬁsh.MATERIALS AND METHODSThree of the test ﬁsh species are native to Australia, thesebeing the silver...

Báo cáo Y học: Synthesis, conformational analysis and biological activity of cyclic analogs of the octadecaneuropeptide ODN Design of a potent endozepine antagonist pot

... isomerism.Characterization of the secondary structure of these twoligands of ODN receptors should provide useful information for the design of potent, stable and selective agonists and antagonists of these receptors. ... (< 0.28 nm), and NH of Leu7 residue and C¼OofLeu5(< 0.24 nm). The proximity of thesetwo C¼O acceptors for one NH donor could explain the slowexchange H/D observed for NH of the Leu7 residue.Analysis ... dihedral angles(F, C) for the average structures generated from members of cis and trans family of cyclo128[D-Leu5]OP showed that the residues of the cis and trans conformers of cyclo128[D-Leu5]OP...

Báo cáo khoa học: Presence of membrane ecdysone receptor in the anterior silk gland of the silkworm Bombyx mori pdf

... tissues contain twoEcR isoforms, EcR-A and EcR-B1, EcR-A isoform ispredominantly expressed in the ASGs at pupation inBombyx [26], and ther efore we used anti-EcR-A s erum for the Western blotting. ... expressionrequired for completion of PCD is accomplished during t heﬁrst 8 h of 20E challenge, but withdrawal of 20E before30 h of the culture interferes with t he PCD sequence [14]. If the genomic theory of ... transcriptionalactivity of target genes [ 6]. I n addition, a nongenomic action of 20E has been supposed for decades. 20E increases the cellular c AMP level in the prothoracic glands of Manducasexta [7] and in the...

numerical computation of internal and external flows the fundamentals of computational fluid dynamics, second edition

... forms the subject of this book, and as already mentioned designates the software tools that allow the analysis of the ﬂuid ﬂow, including the thermal heat transfer and heat conduction effectsin the ... grow further and to become akey-driving factor to all aspects of industrial analysis and design. In the automotiveindustry for instance, the time required for the design and production of a new ... worldofComputer-AssistedEngineering or CAE. CAE refers to the ensemble of simulation tools that support the work of the engineer between the initial design phase and the ﬁnal deﬁnition of the...

Computational fluid dynamics analysis of a twisted airfoil shaped two-bladed H-Darrieus rotor made from fibreglass reinforced plastic (FRP)

... in the literature. Considerable improvement in the understanding of VAWT can be achieved through the use of Computational Fluid Dynamics and experimental measurements [11]. The objective of the ... highlight the potential of CFD as a tool for the performance measurement of vertical axis wind rotor. Further, the contour plots of velocity magnitude were generated for the rotor for each H/D ... 1.92, 2.10 and 2.20. The blades of the model had the provision for change of H/D ratios using nuts and bolts. The cross-sectional area of the wind tunnel test section was 30 cm x 30 cm of length...

Xem thêm

Từ khóa: update of the k doqi clinical practice guideline for diabetes and chronic kidney disease describe the guiding principles at the congress of vienna the art of r programming takes you on a guided tour of software development with r has attracted increasing attention as a component of amperometriclglutamate sensors used in the food industry and clinical biochemistry the precursor of lgox have been studied as potential key molecules in the pathogenesis of the precancerous intestinal metaplasia of the human stomach however design of the gene Nghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thống Nghiên cứu tổ chức pha chế, đánh giá chất lượng thuốc tiêm truyền trong điều kiện dã ngoại Nghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THz Biện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọ Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit ĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN Phát hiện xâm nhập dựa trên thuật toán k means Nghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùng Nghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chế Nghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúng Nghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000 Định tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Sở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIX Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Nguyên tắc phân hóa trách nhiệm hình sự đối với người dưới 18 tuổi phạm tội trong pháp luật hình sự Việt Nam (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật BÀI HOÀN CHỈNH TỔNG QUAN VỀ MẠNG XÃ HỘI