Can anyone identify this plant?

In the humid montane forest in the province Luya, department of Amazonas, Peru at about 2000 m.a.s.l. i took a picture of this strange looking sprout. Someone knows what plant it is?

02 March 2019 7,785 14 View

Can anyone identify this plant?

Recently I took some photos of this interesting plant in northern Peru (3500 metres above sea level, near Kuelap). Could you please help me to identify the species, genus and family? Thank you...

11 December 2018 4,143 11 View

What software (s) can you recommend for hydraulic simulations in water pipes and connections?

What is the software indicated to make a hydraulic simulation of water hammers (with a precision of hundredth of seconds) in a domiciliary water connection?

09 October 2018 3,139 5 View

Which are the most important journals in the field of sanitary engineering in the Spanish language?

03 April 2018 7,406 3 View

Can anyone identify the Species, Genus or Family of this catfish?

Recently I took some photos of this catfish in a cave in the northern Peruvian Andes. Can anyone identify the Species, Genus or Family? Thank you very much ! Stefan

09 October 2016 4,744 5 View

Are there any low-cost alternatives to the UFR (Unmeasured-Flow Reducer) ?

Recently I read about the Unmeasured-Flow Reducer (UFR) produced by AY McDonald to reduce the under-registration of low flow rates in water meters. The problem is that the device is quite...

08 September 2016 6,674 2 View

Which software is recommended for phonetic transcription of languages ?

I am looking for a software to support phonetic transcription of a sound recording in a phonetically undocumented language. I have heard about PRAAT, but I wonder if there is a software that can...

07 August 2015 9,839 8 View

Are there independent evaluations, which show limitations of the use of GPR (Ground-penetrating Radar) for the detection of illegal water connections?

01 January 1970 2,627 1 View

Are there experiences with acoustic location of illegal water connections ?

Currently we are trying to locate clandestine (illegal) water connections by acoustic location of plastic pipes in Moquegua (Peru). Are there any known experiences of this kind ?

01 January 1970 7,877 3 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 View