quadrupole•linear ion trap hybrid instruments

Báo cáo khoa học: The changing patterns of covalent active site occupancy during catalysis on a modular polyketide synthase multienzyme revealed by ion-trap mass spectrometry pptx

Báo cáo khoa học: The changing patterns of covalent active site occupancy during catalysis on a modular polyketide synthase multienzyme revealed by ion-trap mass spectrometry pptx

... role for major conformational changes during catalysis [22,23] Both animal FAS and modular PKS are functional homodimers, which raises additional questions about the interactions between the active ... recognition between substrates and individual ketoreductase, dehydratase and enoylreductase domains [10,41–44] Perturbation of these interactions leads to inactivation, or to the generation of ... [12,42] and in vitro [43] 7064 Evidence for coordination of condensation and ketoreduction In previous work [44] the operation of a single extension module from DEBS was studied in vitro by mixing...

Ngày tải lên: 16/03/2014, 03:20

13 426 0
Silicon as a model ion trap: Time domain measurements of donor Rydberg states

Silicon as a model ion trap: Time domain measurements of donor Rydberg states

... pulse.) We take the photoionization cross-section from the 2p0 state to be ␴ionize Ϸ ϫ 10Ϫ21 m2, calculated by using the hydrogenic 2p continuum photoionization cross-section (21), appropriately ... SCIENCES Multiphoton Ionization If we take the absorption cross-section for 1s(A1) 2p0 to be ␴abs ϳ ϫ 10Ϫ18 m2 from the small-signal absorption spectrum, and note that the Si transmission coefficient ... recombination time 1/Ptot Ϸ 16 ps, which sets the time scale for recombination under complete ionization, can be found by taking Brown’s value for the electron recombination cross-section ␴recom...

Ngày tải lên: 16/03/2014, 15:30

5 296 0
Báo cáo khoa học: Chain initiation on type I modular polyketide synthases revealed by limited proteolysis and ion-trap mass spectrometry doc

Báo cáo khoa học: Chain initiation on type I modular polyketide synthases revealed by limited proteolysis and ion-trap mass spectrometry doc

... concentration of 52 lm The reaction mixture was incubated at 30 °C for min, and a portion was then analyzed by LC-MS To the rest of the reaction mixture propionyl-CoA was added to a final concentration ... milder digestion conditions The complete post-translational modification of both the loading and extender ACPs was also confirmed by the observed masses Limited proteolysis of DKS Propionyl-CoA/n-butyryl-CoA ... structural studies In our work, ion trap mass spectrometry was used Compared with the Fourier transform -ion cyclotron resonance (FT-ICR) mass spectrometer [16,17], the ion trap is less expensive and...

Ngày tải lên: 16/03/2014, 18:20

15 210 0
Ion trap cavity quantum electrodynamics

Ion trap cavity quantum electrodynamics

... (information carrier) In addition, a cavity also provides other useful functions for a trapped ion system such as ion cooling This thesis explores various functionalities of a trapped ion- cavity ... initial conditions of the ion position and velocity The solutions of Equation 2.7 and Equation 2.8 comprise motions in two timescales, corresponding to the secular motion and the micromotion The secular ... demonstrated with trapped ion- cavity setups In addition to QIP applications, a cavity also provides other useful functions for a trapped ion system such as enhanced photon collection efficiency [34]...

Ngày tải lên: 10/09/2015, 09:05

180 561 0
Humic acid removal from aqeous solution by hybrid eletrodialysis ion exchange

Humic acid removal from aqeous solution by hybrid eletrodialysis ion exchange

... 1.2 Water desalination costs as a function of the feed solution concentration for distillation, ion exchange, electrodialysis, and reverse osmosis Fig 1.3 Electrodeionization process unit Fig ... function of pH of HA solution in a single-pass 84 operation mode Fig 5.13 HA concentration ratio as a function of time for different ionic 85 strengths of HA solution in a single-pass operation ... worldwide in ultrapure water production The principle of electrodeionization (EDI) is illustrated in Figure 1.3 Fig.1.3 Electrodeionization Process Unit Recent research of electrodeionization focuses...

Ngày tải lên: 22/10/2015, 21:14

138 313 0
Chương liên kết ion.doc

Chương liên kết ion.doc

... 19 : LUYÊN TẬP VỀ : LIÊN KếT ION LIÊN KẾT CỘNG HOÁ TRỊ SỰ LAI HOÁ CÁC OBITAN NGUYÊN TỬ Liên kết phân tử KF thuộc liên kết A cộng hoá trị B cộng hoá trị phân cực C ion D cho - nhận Hãy chọn phương ... HCl, CsF, H2O NH3 Hợp chất có liên hết ion A HCl B CsF C H2O D NH3 Chọn đáp án Các liên kết phân tử NH3 thuộc liên kết A cộng hoá trị B cộng hoá trị phân cực C ion D cho - nhận Hãy chọn đáp án Nguyên ... kết A ion B cộng hoá trị không phân cực C cộng hoá trị phân cực D cho - nhận Hãy chọn đáp án Liên kết phân tử HBr liên kết A cộng hoá trị không phân cực B cộng hoá trị phân cực C cho -nhận D ion...

Ngày tải lên: 14/08/2012, 10:01

4 1,9K 11
Linear List Concepts

Linear List Concepts

... (searching appropriate position is needed) With Restricted List: depend on it own definition (FIFO or LIFO) Insertion (cont.) Insert an element at a specified position p in the list 60 Before: ... DataIn , ref DataOut, val position ) (Operations are successful when the required position exists) 14 Specification for List ADT (cont.) // For Sorted List: ... Insertion is successful when allocation memory for the new node is successful 32 Insert Node to a Linked List (cont.)  There is no difference between  insertion in the middle (a) and insertion...

Ngày tải lên: 20/08/2012, 12:06

71 445 0
SAP2000®  Linear and Nonlinear  Static and Dynamic  Analysis and Design  of  Three-Dimensional Structures

SAP2000® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures

... Auto Selection Sections form shown in Figure K Type TRUSS in the Auto Section Name edit box 2-8 Step Begin a New Model Chapter - An Introductory Tutorial Figure Auto Selection Sections form L ... Sections command The Area Sections form will appear C Click the Add New Sections button in the Click to area of the form The Area Section form shown in Figure 18 appears Type DECK into the Section ... indicates that the auto select section list needs modification In that case, either add more sections to the auto select sections list or assign larger sections to the members that did not pass...

Ngày tải lên: 06/09/2012, 15:56

47 1,4K 2
Linear Systems

Linear Systems

... decomposition and Fourier decomposition They are described in detail in the next several chapters In addition, several minor decompositions are occasionally used Here are brief descriptions of ... peak detection, squaring, sine wave to square wave conversion, frequency doubling, etc Common electronic distortion, such as clipping, crossover distortion and slewing Multiplication of one signal ... definitions assume that the signal is composed of an even number of samples, and that the indexes run from to N& The decomposition is calculated from the relations: EQUATION 5-1 Equations for...

Ngày tải lên: 13/09/2012, 09:49

20 700 0
Linear Image Processing

Linear Image Processing

... with conventional convolution Chapter 18 discusses how FFT convolution works for one-dimensional signals The two-dimensional version is a simple extension We will demonstrate FFT convolution with ... 24-16 shows an execution time comparison between conventional convolution using floating point (labeled FP), conventional convolution using integers (labeled INT), and FFT convolution using floating ... FIGURE 24-16 Execution time for image convolution This graph shows the execution time on a 100 MHz Pentium processor for three image convolution methods: conventional convolution carried out with...

Ngày tải lên: 13/09/2012, 09:50

26 630 0
Dùng phương pháp trao đổi ion để xử lý nước cứng

Dùng phương pháp trao đổi ion để xử lý nước cứng

... ion Nhựa trao đổi ion gọi ionit ,các ionit có khả hấp thu ion dương gọi cationit, ngược lại ionit có khả hấp thu ion âm gọi anionit Còn ionit vừa có khả hấp thu cation ,vừa có khả hấp thu anion ... sử dụng trao đổi ion trao đổi ion với lớp nhựa chuyển động , vận hành tái sinh liên tục ; trao đổi ion với lớp nhựa trao đổi đứng yên ,vận hành tái sinh gián đoạn Trong trao đổi ion với lớp nhựa ... phương pháp trao đổi ion Chu trình vận hành trao đổi ion Phương pháp trao đổi ion sử dụng rộng rãi trình xử lý nước thải nước cấp Trong xử lý nước cấp, phương pháp trao đổi ion thường sử dụng để...

Ngày tải lên: 23/09/2012, 15:16

6 5,6K 50
Tài liệu xe ô tô Lexus Hybrid - P1

Tài liệu xe ô tô Lexus Hybrid - P1

... Technician Hybrid System Engine Chassis Body Electrical L110F Hybrid Transmission LF1A Transfer Active Stabilizer Suspension Steering Model Outline for Technician Hybrid System L110F Hybrid Transmission ... Technician Hybrid System L110F Hybrid Transmission Engine Chassis Body Electrical -A Reset Memory (Initialization and Calibration) – After replacing the HV ECU or the hybrid transmission, make ... Technician Hybrid System L110F Hybrid Transmission Engine Chassis Body Electrical -A Reset Memory (Initialization and Calibration) – After replacing the HV ECU or the hybrid transmission, make...

Ngày tải lên: 22/10/2012, 11:09

65 1,1K 22
Tài liệu xe ô tô Lexus Hybrid - P2

Tài liệu xe ô tô Lexus Hybrid - P2

... Reduction Planetary Gear Unit MG2 - MG1, MG2 Condition Rotation Direction + Torque + Discharge - Charge Charge Discharge Model Outline for Technician Hybrid System Engine Hybrid System Operation ... Combination Meter Diagnosis Function for HV Battery A/C ECU Serial Communication Blower Motor Controller Battery Smart Unit HV Battery Voltage Detection Circuit Leak Detection Circuit Detection for ... Tank for Hybrid System Reservoir Tank for Engine Radiator (for HV System) Hybrid Transmission Water Pump 30 NOTE: This is LHD model illustration Model Outline for Technician Service Point Hybrid...

Ngày tải lên: 22/10/2012, 11:09

62 717 11
Động cơ Hybrid - biogas hybid

Động cơ Hybrid - biogas hybid

... implementation of Kyoto Protocol under UN Framework Convention on Climate Change and are already making steps towards emission reductions, particularly through Clean Development Mechanism The utilization ... method of adsorption by iron oxides is employed [1], [2] In preparation of iron oxides as adsorbent, ion scraps Table 1: Daily time of continuous operation of generator in function of pigs number ... the biogas-gasoline hybrid engine consumes about 1m3 of biogas and it contributes to the reduction of 1kg CO2emission  Double action regulator can provide good stabilization of engine speed...

Ngày tải lên: 22/10/2012, 13:56

9 802 4
Động cơ Hybrid - CACULATER

Động cơ Hybrid - CACULATER

... resolution microstep positioning for silent, resonance-free operation As shaft speed increases, the output step resolution is expanded using "on-motor-pole" synchronization At the completion of ... provides step and direction outputs to the driver Most applications require that the indexer manage other control functions as well, including acceleration, deceleration, steps per second and ... with a driver and/or power supply and optional encoder feedback for "closed loop" applications that require stall detection and exact motor position compensation INTEGRATED CONTROL Integrated control...

Ngày tải lên: 22/10/2012, 13:56

13 564 4
Động cơ Hybrid - ENGINE

Động cơ Hybrid - ENGINE

... in aggregate, trillions of dollars invested in relational data and relational database management systems (RDBMSs), simply replacing RDBMSs with a pure XML store isn’t an option Adding an XML-only ... (There are varying definitions of “native” XML support To clear up the confusion about what’s typically called “native” today, see the sidebar on page 45.) In the hybrid version, XML is handled as ... optimization, scalability, and high availability DB2 offers for relational data Ultimately, a unified XML/relational database keeps things simple by avoiding the need to integrate XML and relational...

Ngày tải lên: 22/10/2012, 13:56

4 560 1
Động cơ Hybrid - hybrid-engine

Động cơ Hybrid - hybrid-engine

... Introduction Definition Need for hybrid engines Brief History Definition  Hybrid Engines are typically described as engines with two power sources  A hybrid electric vehicle (HEV) is a type of  hybrid ... parallel.   Degrees of hybridization: FULL HYBRID:  Full hybrid, sometimes also called a strong hybrid, is a vehicle that can run on just the engine, just the batteries, or a combination of both.   ... Series hybrids usually have a smaller combustion engine but a larger battery pack as compared to parallel hybrids, which makes them more expensive than parallels This configuration makes series hybrids...

Ngày tải lên: 22/10/2012, 13:56

20 555 1
Động cơ Hybrid - SLIDE

Động cơ Hybrid - SLIDE

... utilization (compared to current ICEs) of fossil fuels & bio-fuels, and a • Practical evolution to alternative and lower-carbon energy sources for transportation and power generation applications ... units, 5% G/R US Diesel & Gas Consumption = 180 B Gal (2006) Federal CAFE Stds LiquidPiston, Inc LPI’s Innovation: High Efficiency Hybrid Cycle Move Combustion cycle from Time Domain to Spatial ... • The Hybrid in HEHC: - High Pressure Air Compression (Diesel) Constant Volume Combustion (Otto) Expand to atmospheric pressure (Atkinson) Internal cooling with air or, in next generation, water...

Ngày tải lên: 22/10/2012, 13:56

12 519 2
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