Other typical assumptions include that there is no external friction (e.g., air resistance), and that external factors such as gravity can be ignored; however, this will depend on the specific case. One example of a mass-spring-damper system is an engine mount with dampers to reduce ...
The principle of conservation of mass may be formulated in either integral or differential form. Both forms express the same physical principle. When applying the integral form, it is important to remember that the enclosing surface A must be closed; it encloses a finite volume V of the space...
Being able to focus on your science, rather than experimental set-up through ready-to-use application-specific method templates for common experiments, means that next break-through is closer than ever before...
原子atom adj. atomic 原子核 nucleus 质子proton 中子neutron 电子electron(abbr. e) 离子ion 阳离子 cation 阴离子 anion 分子molecular 单质element 化合物 compound 纯净物 pure substance/chemical substance 混合物 mixture 相对原子质量 relative atomic mass(abbr. Ar) 相对分子质量 relative molecular mass (abbr...
There are many more examples of personalized products and services out there, and they all rely on the KYC principle manifested in this or that form. Some of them use a single core technology, but most of them lean on a combination of big data, cloud computing, AI/ML, and IoT to build...
The genome encodes several types of biological function and the relationship between the number of functional genes and genome size differs according to functional category (e.g., defined by the Gene Ontology21) and species domain22,23. Therefore, in this study, we hypothesized that specific ...
No. Thermal mass flow meters must be calibrated for specific gases or gas mixtures. Each gas has different thermal properties that affect heat transfer rates. When ordering a thermal mass flow meter, you must specify the gas being measured to ensure proper calibration. For applications with variab...
than to build new rail and metro lines. This is a rule of thumb, however, not a scientific principle; specific circumstances might point to a different decision. Los Angeles, for example, wants to make its downtown denser and to ease congestion, so it is investing in new rail to achieve...
Hosters are faced with striking a balance between achieving high levels of isolation while maximizing scale. Because of this, many are forced to use a hybrid of the aforementioned application-pool scenarios. A typical scenario would include multiple application pools, each serving a specific purpose...
(Quantachrome, USA) at 77 K. The specific surface area was calculated by Brunauer Emmett Teller method. The pore size distribution and pore volume were calculated using DFT method. XPS spectra were recorded on an ESCALab220i-XL electron spectrometer (VG Scientific, UK) using an Al Kα ...