What is the best choice to evaluate the effect of nonlinear shear ?

Dear colleagues, To evaluate the OpenSees capabilities for shear-flexion interaction. What is the best way to use. Rotation based shear failure model (RotationShearCurve) with...

09 October 2019 5,690 3 View

How to plot PSDM curve considering maximum Drift for the development of fragility curves?

Hi; I am s PhD student in Earthquake Engineering. Now, I work on the development of seismic fragility curves for bridge piers. For this, I use IDA method by using OpenSees tool. For this, I...

10 November 2018 8,944 4 View

How to plot fragility curve using regression analysis ?

Hi, Please, can you help me on the method of plotting fragility curves from regression analysis of column or PSDM (Ln (Drift) Vs Ln (PGA)) I am very grateful for your help. Cordially.

10 November 2018 9,225 6 View

Can anyone help me please, in a pushover analysis of cantilever column using zerolength section element?

Hi everyone, I'm modelling a cantilever column in 2D with a section (1.0x 14.25m) as nonlinearBeamColumn element and i used zerolength section element to simulate the effect of reinforcement...

08 September 2018 2,513 0 View

Report of pr Lehman D and al.

Do you have this Report (Pacific Earthquake Engineering Research Center); no. PEER-98/01. "Seismic performance of well-confined concrete bridge columns". Dawn E. Lehman and Jack P. Moehle. Thank...

01 January 1970 7,261 3 View

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

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03 March 2021 5,360 2 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What is the procedure to determine the permeability of concrete?

can anyone help me in this, it will help me with my research work

01 March 2021 834 3 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View