Site amplification factors at period ranges of 0.1-0.2, 0.2-0.3, 0.3-0.5, 0.5-1, 1-2, and 2-10 s were determined for 27 stations of KiKnet and K-NET in and around the source area of the 2008 Iwate-Miyagi Nairiku earthquake. The ratio of the geometric mean values of the two maximum horizontal amplitudes of acceleration and velocity at the uphole to that at the downhole is considered as the ampli...

Geomagnetic field observations over southern Africa, including countries like South Africa, Namibia, and Botswana, were conducted during October and November 2005 as part of a collaborative project, called COMPASS (COmprehensive Magnetic Processes under the African Southern Sub-continent) between the Hermanus Magnetic Observatory (HMO) in South Africa and the GeoForschungsZentrum Potsdam (GFZ) ...

Subterranean termites, Reticulitermes spp., were attracted to carbon dioxide (CO2) in laboratory and Þeld tests. In behavioral bioassays, Reticulitermes flavipes (Kollar), Reticulitermes tibialisBanks, andReticulitermes virginicusBankswere attracted toCO2 concentrations between5 and 50 mmol/mol. In further bioassays, R. tibialis and R. virginicus were attracted to the headspace from polyisocyan...

Low-cost air quality stations can provide useful data that offer a complete picture of urban dynamics, especially when integrated with daily measurements from reference stations. However, the success such deployment depends on measurement accuracy and capability resolving spatial temporal gradients within domain. In this work, an ensemble three low-cost named “AirQino” was deployed to monitor p...

We propose a decentralized downlink scheduling protocol for wireless cellular networks that allows each base station to control its transmission power. On the beginning of each scheduling period, neighbor base stations exchange their local system states, i.e., channel, traffic and position statistics of their local mobile users. But on each slot of the current scheduling period, the base statio...

Lucifer faxoni (BORRADAILE, 1915) and L. typus (EDWARDS, 1837) are species first identified in the neritic and oceanic waters off the Amazon. Samplings were made aboard the vessel "Antares" at 22 stations in July and August, 2001 with a bongo net (500-µm mesh size). Hydrological data were taken simultaneously for comparative purposes. L. faxoni was present at thirteen of the fourteen neritic st...

The performance of DCF, the basic MAC scheme in IEEE 802.11, degrades under larger network sizes, and higher loads due to higher contention and so more idle slots and higher collision rates. We propose a new high-performance DCF (HDCF) protocol that achieves a higher and more stable performance while providing fair access among all users. In HDCF, the transmitting stations randomly select the n...

The flow distribution of cellular networks fluctuates according to the changes of time and space, and this phenomenon makes the low utilization rate of some base stations. Although the base stations’ utilization rate is low, it causes the large energy consumption. The CSO can save the energy of base stations according to the load, but it is influenced by the load and the sequence of base statio...

| We consider a Code Division Multiple Access (CDMA) cellular network and propose sub-optimal multiuser detectors which exploit a type of diversity inherent in the system and are based on the processing of signals received at multiple base stations. We investigate the performance of conventional matched-lter, linear, and decision-based detection schemes, using this diversity scheme, for both sy...

Reservoir operation involves many critical decisions due to unpredicted circumstances, such as drought or flood. The reservoir water release decision is one of the challenging tasks for the reservoir operator since the decision to deal with many complicated decision variables and multipurpose operation. Typically, the water that flow into the reservoir comes from the upstream river network. The...