Dear scientific researchers, may I ask you, what is the function of the ∑ in the picture?
The maximum and minimum values are already taken in the brackets, which are clear values. Is ∑ still useful?
7/11/24
Dear Weida,
The symbol Σ (sigma) is generally used to denote a sum of multiple terms.
I hope this helps you.
Bill Colonna
Midwest Wine & Grape Industry Institute, Iowa State University, Ames, Iowa, USA. [email protected]
W.J. Colonna The maximum and minimum values are already taken in the brackets, which are clear values. Is ∑ still useful?
zebrafish and mouse
19 July 2024 9,158 1 View
We have observed many holes on the surface of TiO2. These holes have a diameter of approximately 1 µm and a depth of about 30 nm. The formation of these holes is mainly related to the...
20 June 2024 3,861 1 View
What kind of cases are geometric phases real? In what case is the geometric phase complex? If the geometric phase is complex, how do we make sense of it?
18 June 2024 6,388 4 View
I used SD rats (E19) for cortical neuron extraction. Due to the need for subsequent special experiments, I cultured the neurons in a Corning PDL 384-well plate. The culture medium is Neurobasal +...
12 June 2024 1,714 4 View
XRF tests were performed on magnetite where the oxide content showed 49.822% Fe2O3, so why not Fe3O4 content as a percentage? How can we deduce the Fe3O4 content?
25 May 2024 1,714 2 View
Since the acoustic impedances of air and solid medium are not in the same order, the acoustic wave transferring in the air would be theoretically fully reflected on the solid surface. So my...
21 May 2024 6,858 9 View
Asking for help: Dear academic experts, does anyone have data on girth weld failure?
07 May 2024 9,666 1 View
Are there any group chats or websites recommended for soil contaminant degradation? Thank you!
26 April 2024 4,887 1 View
How Dynamic Bayes can be better integrated with cloud models for risk assessment
25 April 2024 5,630 2 View
Is it necessary to sterilize soil samples before preparing contaminated soil for experiments on degradation of organic pollutants in soil by PMS? A review of the large amount of papers shows that...
24 April 2024 1,417 2 View
This larva was captured using a plankton net in the Persian Gulf during the summer. I believe it may be a Facetotecta nauplius.
08 August 2024 3,746 4 View
May members post flyers about opportunities to present at a conferehttps://veraeducation.com/nce? If so, where to post for the Virginia Educational Research Association? https://veraeducation.com/
08 August 2024 4,585 1 View
My name is Apurva Saoji. I am a Ph.D scholar in Computer engineering in India. I am looking for international expert in reviewing my PhD thesis, "Competitive Optimization Techniques to Minimize...
07 August 2024 4,600 2 View
Please can anyone support with the survey questions based on RQ measures and propose how to do it in FMCG industry and include as well the role of brand equity Thanks
06 August 2024 949 0 View
Hi everyone, If you have written or come across any papers where Generalised Linear Mixed Models are used to examine intervention (e.g., in mental health) efficacy, could you please share the...
04 August 2024 4,130 4 View
Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...
04 August 2024 5,974 3 View
TEP presentation caption (The Environmental Project) Re: Why should Washington’s DC, or any country government point of location think of as nowadays of as to being 'tomorrow as to come! if it...
03 August 2024 2,484 1 View
what are the top 3 challenges to the advancement of the field of Radiogenomics in cancer research? is it the availability of easily available low-cost matched imaging and biosamples with clinical...
03 August 2024 5,828 4 View
I am excited to announce an opportunity for dedicated researchers to join our dynamic team for an ongoing meta-analysis study. If you are passionate about research and have a keen interest in...
01 August 2024 6,737 1 View
Is the peer-reviewed publication "MedieKultur: Journal of Media and Communication Research" (ISSN Online: 1901-9726, ISSN Print: 0900-9671) a legitimate and credible scholarly journal in the field...
01 August 2024 629 3 View