Dennis Lorch

23 Questions 18 Answers 0 Followers

Questions related from Dennis Lorch

How to find documens about the approval of the US Occupation Headquaters in Germany in 1946 for a single German person to found a publishing house?

I am looking for documents relating to the permission of the US Office of Military Government in post-war Germany in 1946 to allow a single person to found a publishing house / media firm for...

15 June 2023 7,782 2 View

Why does in a binary mixture liquid with lower surface tension move upward due to Marangoni Convection?

Hello, can anyone explain me the physical intuition behind the phenomenon that a liquid with lower surface tension, which lies below a liquid with higher one, moves upward due to the gradient in...

29 July 2022 461 0 View

Possible to use satillite hyperspectral imaging data for agricultural analysis?

Hello, I am not very familiar with hyperspectral imaging and agriculture, but I am very interested in machine learning models used from data generated by hyperspectral cameras flying over farming...

30 August 2021 1,343 2 View

Projects / databases of hyperspectral imaging in agriculture?

Hello, I am just starting to research about applications of hyperspectral imaging in agriculture. I am looking for university project, start-ups etc. which gather large hyperspectral data over...

19 August 2021 2,317 3 View

What is a common ph-Level for cell broth when harvesting IgG antibodies in a cell bank and at a first centrifugation and filtration step afterwards?

Hello, do you know a common ph Value for the first downstream step in IgG mAb facturing? I would guess around 7 but not sure.

27 September 2019 9,575 0 View

Inclusion Bodies up/downstream process - For what do you use EDTA, Triton X, DNAse and Lysozyme?

Hello, am I right that in Inclusion body processes the chemicals mentioned above are mainly used for cell disruption and removal of cell debris? Which of them do I use for solubilization of the...

26 September 2019 8,509 4 View

Aqueous two phase separation (ATPS) - Which are the relevant criterions to decide whether the product should be in the upper or lower phase?

Helllo, if I want to set up a process which wants to manufacture molecular Antibodies and I want to separte them from cell debris, DNA etc. as a first separation step, are there any general...

21 September 2019 9,237 3 View

Isoelectric point of DNA, mAbs, HCP: charecteristic slopes of the charge / ph Diagrams?

Hello, are there any significant /characteristical differences between the curves of a DNA, mABs, HCPs charge and its ph-Value with respect to the slope and maximum charge values? Anyone knows...

16 September 2019 4,834 0 View

What are the biggest structural differences between human and mice antibodies with respect to domains, fab, fc, variable constant chain, hinge region?

Hello, what would be characteristical structural/chemical/modificational differences between human and mice antibodies for all or specifif Ig classes? Best, Dennis

13 September 2019 1,939 3 View

What are the biggest structural differences between human and mice antibodies with respect to domains, fab, fc, variable constant chain, hinge region?

Hello, what would be characteristical structural/chemical/modificational differences between human and mice antibodies for all or specifif Ig classes? Best, Dennis

09 September 2019 9,005 3 View

Aqueous two phase separation (ATPS) - Which are the relevant criterions to decide whether the product should be in the upper or lower phase?

Helllo, if I want to set up a process which wants to manufacture molecular Antibodies and I want to separte them from cell debris, DNA etc. as a first separation step, are there any general...

09 September 2019 9,335 3 View

What is the minimal removable particle size for a depth filtration during monoclonal antibodies downstream clarification / harvest?

Hello, what is the minimal particle size a typical modern depth filter can remove in in a first or second (after centrifugation) step within a downstream process to clarify cell culture broth?...

09 September 2019 6,708 2 View

Residual-variance for Akaike Information Criteria in a nonlinear model with several y dependent variables?

Hello, I have a non-linear regression model of a first order ODE in which 6 dependent variables are estimated parallel. If I want to calculate an information criterion such as Akaike, can I simply...

21 February 2018 1,350 2 View

Principal Component Analysis or something alike for nonlinear Parameter estimation?

Hello, the matlab code of estimated parameters of an non-linear differential equation model is options=optimset('MaxFunEvals', 10000, 'MaxIter', 10000, 'TolFun', 0.0001,...

08 February 2018 8,291 4 View

Does anyone has fouling factors heat exchange design for lignin solutions or the aqueous/oil phase after hydrothermal liquefactions or other treatmen.

for u-bundle heat exchanger oder any other heat exchange device

22 May 2017 3,621 3 View

Does anyone have heat transfer coefficients between lignin solutions and the aqueous/oil phase after hydrothermal liquefaction or other hyd. treatment

with a U bundled heat exchanger or any other heat exchange device

22 May 2017 4,325 1 View

Can anyone hand me out the latest value of the plant cost index of the chemical engineering magazin for calculation within a student homework?

If you have values at least from Oktober 2016 that would be ok too.

18 May 2017 767 3 View

Has anyone measured the viscosity of Lignin / Water and catalysts such as Kaliumhydroxide solutions?

Would need it for the Temperature at 298 K, 573 K, 623 K preferably for a 13 masss-% Lignin, 0,09% KOH solution.

16 May 2017 1,516 1 View

How would you calculate the heat capacity of a 1% wt KOH and 13% Ligin solution? I have the cps of dry KOH and Ligin, can I sum up by relative weight?

The Temperature of KOH and Ligin should be room Temperatur around 298,15 K, Water has a fraction with room temperature and a fraction around 353,15 K, but perhaps its ok to consider all components...

07 May 2017 6,975 3 View

How would you calculate the heat capacity of a 1% wt KOH and 13% Ligin solution? I have the cps of dry KOH and Ligin, can I sum up by relative weight?

The Temperature of KOH and Ligin should be room Temperatur around 298,15 K, Water has a fraction with room temperature and a fraction around 353,15 K, but perhaps its ok to consider all components...

05 May 2017 6,335 4 View

Has anyone measured the viscosity of Lignin / Water and catalysts such as Kaliumhydroxide solutions?

Would need it for the Temperature at 298 K, 573 K, 623 K preferably for a 13 masss-% Lignin, 0,09% KOH solution.

05 May 2017 1,690 1 View

Does anyone have heat transfer coefficients between lignin solutions and the aqueous/oil phase after hydrothermal liquefaction or other hyd. treatment

with a U bundled heat exchanger or any other heat exchange device

05 May 2017 7,112 1 View

Does anyone has fouling factors heat exchange design for lignin solutions or the aqueous/oil phase after hydrothermal liquefactions or other treatmen.

for u-bundle heat exchanger oder any other heat exchange device

05 May 2017 1,527 3 View