Results 171 to 180 of about 55,399 (298)
Chemie Ingenieur Technik, EarlyView.All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau +2 more
wiley +1 more source
Detection of Irregular Loads Using SAW Delay-Line Devices. [PDF]
Sensors (Basel)Yin Y, Zhao Z, You R, Liang Y, Wang W.
europepmc +1 more source
Theoretical Analysis of SAW Device and Application as Temperature, Humidity and UV Sensors
, 2013 表面聲波元件具有靈敏、體積小、製程簡單等優勢，在感測器領域有相當廣 泛的應用，在溫度、氣壓、濕度、小分子感測等等皆有相當多的商用產品開發以 及研究成果。除了感測器外，由於表面聲波元件有較高的Q-factor，其中心頻率的 能量相當明顯，在通訊方面應用為相當重要的濾波器，因此也對生活帶來更多便 利性。 表面聲波元件由壓電基板、指叉電極、感測區所構成，在本文中首先建立表 面波基本理論模型，並且選擇不同壓電基板製作表面聲波元件，探討各種元件之 頻率響應對於溫度變化的敏感度，另外在溼度感測方面 ...
蔡奇儒, Tsai, Chi-Ju
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Impact of QSW‐ZVS on Input EMI Filter Design in DC‐DC Converters
International Journal of Circuit Theory and Applications, EarlyView.This paper analyzes the impact of quasi‐square wave zero voltage switching (QSW‐ZVS) on passive EMI filter design for DC‐DC buck converters. The extra element theorem (EET) is used to derive the design quantities that ensure converter performance is not altered, and the resulting damping element values are compared with those of traditional converters.
Silvia Simone +3 more
wiley +1 more source
Acoustoelectric control of optoelectronic anisotropy for reconfigurable polarimetry. [PDF]
Sci AdvJiang C +7 more
europepmc +1 more source
SENSOR ARRAY ABLE TO DETECT AND RECOGNISE CHEMICAL WARFARE AGENTS [PDF]
In this paper we studied a device based on array of six different sensors with surface acoustic wave for detections and recognition of three chemical warfare agents (chloropicrin, soman and lewisite).
S. Serban +7 more
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The Curriculum Journal, EarlyView.Abstract This study explored how lecturers in a post‐92 UK university conceptualise and enact decolonial curriculum principles within their teaching and programme design. Drawing on semi‐structured interviews with academic staff across multiple disciplines, the research adopts a qualitative, phenomenologically informed approach to examine the interplay
Reece Sohdi
wiley +1 more source
High sensitivity SAW hydrogen gas sensor based on thermal conductivity effect. [PDF]
Microsyst NanoengCui B +6 more
europepmc +1 more source
Carbon emission assessment of tunnel infrastructures: From construction to operation
Deep Underground Science and Engineering, EarlyView.This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
wiley +1 more source
Acoustofluidic Biosensors. [PDF]
Micromachines (Basel)Chen CJ, Kwon JS, Chuang HS.
europepmc +1 more source