Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Dimensional Analysis03:40

Dimensional Analysis

65.1K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
65.1K
Dimensional Analysis01:27

Dimensional Analysis

683
Dimensional analysis is a valuable technique in fluid mechanics for simplifying complex problems by reducing them into dimensionless groups. These groups capture the essential relationships between the variables involved, allowing researchers and engineers to analyze fluid flow without dealing with each variable individually. This approach reduces the number of independent variables, allowing for easier analysis and better understanding of physical phenomena.
In fluid mechanics, dimensional...
683
Dimensional Analysis01:23

Dimensional Analysis

2.2K
Dimensional analysis is a powerful tool that is used in physics and engineering to understand and predict the behavior of physical systems. The basic idea behind dimensional analysis is to express physical quantities in terms of fundamental dimensions such as the mass, length, and time. Derived dimensions like the velocity, acceleration, and force are derived from the combinations of these fundamental dimensions.
Dimensional analysis allows us to analyze and compare physical quantities on a...
2.2K
Dimensional Analysis02:19

Dimensional Analysis

24.5K
The concept of dimension is important because every mathematical equation linking physical quantities must be dimensionally consistent, implying that mathematical equations must meet the following two rules. The first rule is that, in an equation, the expressions on each side of the equal sign must have the same dimensions. This is fairly intuitive since we can only add or subtract quantities of the same type (dimension). The second rule states that, in an equation, the arguments of any of the...
24.5K
Three-Dimensional Force System01:30

Three-Dimensional Force System

2.9K
In mechanical engineering, a three-dimensional force system is a system of forces acting in three dimensions, with forces applied along the x, y, and z coordinate axes. The three-dimensional force system is an important concept in mechanical engineering, as it allows engineers to understand and analyze the behavior of objects and structures in three dimensions. By understanding the forces acting on a system, engineers can design more efficient and effective mechanical systems that can withstand...
2.9K
Two-Dimensional Force System01:20

Two-Dimensional Force System

1.7K
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
1.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

In vitro fertilisation in Hong Kong: the situation in 2019.

Hong Kong medical journal = Xianggang yi xue za zhi·2019
Same author

A randomised, controlled trial of rectus sheath bupivacaine and intrathecal bupivacaine, without or with intrathecal morphine, vs. intrathecal bupivacaine and morphine after caesarean section.

Anaesthesia·2017
See all related articles

Related Experiment Video

Updated: Feb 9, 2026

Surgical Techniques to Optimize Ovarian Reserve during Laparoscopic Cystectomy for Ovarian Endometrioma
11:29

Surgical Techniques to Optimize Ovarian Reserve during Laparoscopic Cystectomy for Ovarian Endometrioma

Published on: January 22, 2022

15.6K

Three-dimensional versus two-dimensional laparoscopy for ovarian cystectomy: a prospective randomised study.

M W Lui1, V Yt Cheung1

  • 1Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong.

Hong Kong Medical Journal = Xianggang Yi Xue Za Zhi
|June 1, 2018
PubMed
Summary

Three-dimensional (3D) laparoscopy offers no significant advantages over two-dimensional (2D) laparoscopy for ovarian cystectomy. Surgeons reported more adverse effects, including nausea and dizziness, with 3D laparoscopy.

Keywords:
LaparoscopyOvarian cysts

More Related Videos

A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System
12:37

A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System

Published on: March 15, 2011

25.0K
Heterotypic Three-dimensional In Vitro Modeling of Stromal-Epithelial Interactions During Ovarian Cancer Initiation and Progression
12:42

Heterotypic Three-dimensional In Vitro Modeling of Stromal-Epithelial Interactions During Ovarian Cancer Initiation and Progression

Published on: August 28, 2012

15.7K

Related Experiment Videos

Last Updated: Feb 9, 2026

Surgical Techniques to Optimize Ovarian Reserve during Laparoscopic Cystectomy for Ovarian Endometrioma
11:29

Surgical Techniques to Optimize Ovarian Reserve during Laparoscopic Cystectomy for Ovarian Endometrioma

Published on: January 22, 2022

15.6K
A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System
12:37

A Method for Ovarian Follicle Encapsulation and Culture in a Proteolytically Degradable 3 Dimensional System

Published on: March 15, 2011

25.0K
Heterotypic Three-dimensional In Vitro Modeling of Stromal-Epithelial Interactions During Ovarian Cancer Initiation and Progression
12:42

Heterotypic Three-dimensional In Vitro Modeling of Stromal-Epithelial Interactions During Ovarian Cancer Initiation and Progression

Published on: August 28, 2012

15.7K

Area of Science:

  • Minimally invasive gynecological surgery
  • Surgical technology assessment

Background:

  • Three-dimensional (3D) laparoscopy is an emerging alternative to conventional two-dimensional (2D) laparoscopy.
  • Its clinical utility in benign gynecological procedures like ovarian cystectomy requires further investigation.

Purpose of the Study:

  • To compare the efficacy and safety of 3D versus 2D laparoscopy for ovarian cystectomy.
  • To evaluate operative outcomes and surgeon-reported experiences.

Main Methods:

  • A prospective randomized study comparing 3D and 2D laparoscopy for ovarian cystectomy.
  • Primary outcomes included cystectomy duration and surgeon's Global Operative Assessment of Laparoscopic Skills (GOALS) score.
  • Secondary outcomes assessed surgeon preferences, perceptions, and adverse effects.

Main Results:

  • No significant differences were found in cystectomy duration or overall GOALS scores between the 3D and 2D laparoscopy groups.
  • Surgeons in the 2D group reported more efficient tissue handling.
  • Adverse effects such as nausea, dizziness, and ocular fatigue were significantly more frequent in the 3D laparoscopy group (45.9% vs 5.3%).

Conclusions:

  • Three-dimensional laparoscopy does not offer significant benefits over 2D laparoscopy for ovarian cystectomy.
  • The use of 3D laparoscopy in this context may lead to increased adverse effects for surgeons.