Lev Leybovich
Rating
Skills and abilities
Architecture
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Drawings & Diagrams
from 2 USD for hour
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Engineering
from 2 USD for hour
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Object Design
from 2 USD for hour
Writing
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Articles & Blog Posts
from 2 USD for hour
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Technical Documentation
from 2 USD for hour
Portfolio
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Design of deforestation and systems
Drawings & Diagrams
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Design of deforestation and systems
Drawings & Diagrams
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Design of deforestation and systems
Drawings & Diagrams
Reviews and compliments on completed projects 8 1
30 May 2021
20 USD
Диплом
Работа выполнена быстро и качественно.
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12 May 2021
20 USD
Часть 3
Оперативность и коммуникабельность на высшем уровне. Проект выполнен без замечаний
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10 May 2021
20 USD
2 часть
Спасибо за оперативность и профессиональное выполнение проекта. Всем доволен
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8 May 2021
26 USD
1 часть
Работа выполнена качественно и в срок. Огромное спасибо исполнителю
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2 May 2021
17 USD
Презентация
Проект выполнен быстро и качественно
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3 July 2020
102 USD
Подготовка технической документации для изделия
Профессионально и быстро. Всё сделано согласно ТЗ и обсужденным замечаниям, дополнениям
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9 June 2020
41 USD
Моделирование гидродинамики потока воздуха на выходе рабочего колеса
Unfortunately, I did not expect such a result in any way: yes, the simulation was carried out quickly, on time, but the pictures were issued absolutely without any accompanying text.
The pictures contained rather strange symbols (see attachments) and required explanations, but I did not receive intelligible answers to questions about what these symbols mean and why they look that way.
To get a positive result, I extended the project time, but nothing happened. The performer could not explain what kind of "funny pictures", contrary to common engineering sense, he modeled. In addition, he began to accuse the customer of incompetence and of issuing incorrect initial data. When asked to confirm their words with calculations, a reference was simply made to some sample of the product. But I don't need the finished product! I need a mathematical model exactly for the parameters that I set. If it is impossible to make such a model, then it was necessary to write it, and not to adjust, not to manipulate, the results obtained.
As a result, it is not clear what model he gave me and why it looks that way.
As I already wrote, some data on the model simply contradict
It may well be that the model is correct, but it is not clear what the model is. What are the underlying data? What is modelled? I never received an explanation.
At the end of the argument, there was a feeling that it was not he who modeled, someone helped him (like his students at the department), but he simply took advantage, but could not explain anything on these models.
By the end of our dispute, the performer generally descended to rudeness.
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23 April 2020
48 USD
Система водоочитски для металургического предприятия
Всё отлично и профессионально
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20 March 2020
23 USD
Water purification calculation of the parameters of the thin wall reservoir
The professional work. A huge experience.
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| Response review
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Диплом
20 USD
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Часть 3
20 USD
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2 часть
20 USD
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1 часть
26 USD
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Презентация
17 USD
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Модели для диплома
10 USD
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Высшая математика
8 USD
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Курсовая по Математическому Моделированию.
46 USD
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Highness in the mattress
34 USD
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Розробка курсів для інженерів
45 USD
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