Results 21 to 30 of about 164,576 (302)
A Review of the Characteristics of Light Pollution: Assessment Technique, Policy, and Legislation
EnergiesLight pollution from the use of artificial lighting poses significant impacts on human health, traffic safety, ecological environment, astronomy, and energy use.
Ying Hao +4 more
doaj +1 more source
Multistation refrigeration system [PDF]
, 1978 A closed cycle refrigeration (CCR) system is disclosed for providing cooling at different parts of a maser. The CCR includes a first station for cooling the maser's parts, except the amplifier portion, to 4.5 K.
Wiebe, E. R.
core +1 more source
Molecular Oncology, EarlyView.Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen +11 more
wiley +1 more source
Technology of Refrigeration and Air-conditioning for Aircraft Environment Control System
Zhileng xuebao, 2020 An aircraft’s environment control system provides the proper environment for its safe and stable flying. The refrigeration and air-conditioning systems are the core parts of an aircraft.
Sheng Jian +3 more
doaj
Performance of an Air Refrigeration System for the Cold Storage of Vaccines
Zhileng xuebao, 2022 The performance and feasibility of the air refrigeration system applied to vaccine cold storage were explored and compared with a cascade refrigeration system based on characteristics of safety and environmental protection, local availability of the ...
Wang Qin +4 more
doaj
Improved cryogenic refrigeration system [PDF]
, 1967 Two-position shuttle valve simplifies valving arrangement and crank-shaft configuration in gas-balancing and Stirling-cycle refrigeration systems used to produce temperatures below 173 degrees K.
Higa, W. H.
core +1 more source
Stochastic Analysis of Synchronization in a Supermarket Refrigeration System
, 2015 Display cases in supermarket systems often exhibit synchronization, in which the expansion valves in the display cases turn on and off at exactly the same time. The study of the influence of switching noise on synchronization in supermarket refrigeration
Leth, John +3 more
core +2 more sources
Experimental determination of the optimum working conditions of a transcritical CO2 refrigeration plant with integrated mechanical subcooling [PDF]
, 2020 Subcooling methods for transcritical CO2 plants are being studied in order to improve their behavior. Among them, the Integrated Mechanical Subcooling system is one of the most promising owing that performs with high efficiency and it is a total-CO2 ...
Cabello López, Ramón +5 more
core +1 more source
Screening and epitope characterization of Nidogen‐2‐specific nanobodies
FEBS Open Bio, EarlyView.Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen +9 more
wiley +1 more source
Ten degree Kelvin hydride refrigerator [PDF]
, 1987 A compact hydride absorption refrigeration system with few moving parts for 10 Kelvin operation is disclosed and comprises liquid hydrogen producing means in combination with means for solidifying and subliming the liquid hydrogen produced.
Jones, Jack A.
core +1 more source