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The spectrum analyzer is widely used for RF signal measurement. In this paper, remarkable features of MS2726C handheld spectrum analyzer are introduced simply. Typical application examples of MS2726C handheld spectrum analyzer, such as satellite transponder spectrum measurement, very low signal level measurement, multiple marker measurement and EMI direct measurement below 10GHz, are presented. Measuring...
Cloud computing is a hot topic of current research, for anonymous authentication is required in many applications scenarios of e-business based on cloud computing, users do not want to expose their identity, users just hope that service providers know they are legitimate users like, for this application, this paper presents a anonymous authentication scheme without certificate, which this scheme avoids...
With the development of digital economy, increasing importance has been attached to the power supply reliability, especially to the temporary interruption. Normally closed-loop operation distribution network with dual sources is discussed,which is the basis of the fault seamless self-healing technology to avoid the temporary interruption. But the power flow distributes naturally and there lack effective...
Shaping of carbon nanotubes (CNTs) into desired morphologies have attracted much attention recently. High quality heterostructured helical carbon nanotubes (HCNTs) were synthesized from transitional metal oxide and ethanol by chemical vapor deposition (CVD) in this paper. High resolution transmission electron microscopy (HRTEM) results showed that, heterostructured “U” shape, “G” shape and “S” shape...
The effects of intrathecally (i.t.) administered opioid antagonist naloxone (Nal), adenosine antagonist aminophylline (Aph), and γ-aminobutyric acid (GABA A )-receptor antagonist picrotoxin (PTX) or Bicuculline (BIC) on the antinociception produced by i.t. norepinephrine (NE), dopamine (DA), morphine (Mor), 5 -N-ethylcarboxamidoadenosine (NECA, an adenosine agonist) or muscimol (MUS, a selective...
The interactions between different doses of serotonin (5-HT) and norepinephrine (NE) in vivo exeriments on rat spinal cord dorsal horn cells was investigated using the integrated electromyography (EMG) measurement of the nociceptive hindlimb flexor reflex (FR). The results indicate that: (1) intrathecal (IT) administration of low doses of 5-HT (60 nmol) or NE (1.5 nmol) suppresses the nociceptive...
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