With a gigabyte of memory priced at less than $2,000, the main-memory DBMS (MMDBMS) is emerging as an economically viable alternative to the disk-resident DBMS (DRDBMS) in many problem domains. The MMDBMS can show significantly higher performance than the DRDBMS by reducing disk accesses to the sequential form of log writing and the occasional checkpointing. Upon the system crash, the recovery ...

The porosity of a zone can be estimated either from a single “porosity log” (sonic, density, neutron, or magnetic resonance log) or a combination of porosity logs, in order to correct for variable lithology effects in complex reservoirs. In the carbonates, mineral mixtures are primarily drawn from calcite, dolomite, and quartz (either as sand grains or as chert); anhydrite and gypsum may also o...

Fehlmann and King introduce bio-logging techniques to track free-living animals.

Logging is ubiquitous in fault-tolerant systems and its use is growing in recent research. Logs are used for many purposes: keeping histories, security, concurrency control, failure recovery, update atomicity, fast physical writes, etc. This paper surveys the uses of logging and points out the commonalities and diierences of clients' needs. It aims to provide the user and the designer of a log ...

We present data from a study of early conifer regeneration and fuel loads after the 2002 Biscuit Fire, Oregon, USA, with and without postfire logging. Natural conifer regeneration was abundant after the high-severity fire. Postfire logging reduced median regeneration density by 71%, significantly increased downed woody fuels, and thus increased short-term fire risk. Additional reduction of fuel...

Over the last two decades, several advances have been made in the development and application of slim-hole geophysical sondes for use in groundwater, engineering, and environmental applications. This equipment is commonly used to provide qualitative (but detailed) estimates of grain size, sediment type, porosity, density, pore-water salinity, as well as bulk and shear moduli, to supplement geol...

In this paper it is presented the real time monitoring system of water flow in hydro power plants which is designed with virtual instrumentation software. Water flow through penstock has been measured by using flow sensor. Volumetric flow of excess water, in the case of emergency evacuation of water, has been calculated from position of control gates and water level. Relationship between the vo...

This study aimed to investigate how sustainable forest management can affect litter hydrological properties. We investigated the net precipitation, mass, water-holding capacity, effective and retention maximum water content in unlogged logged forests over 13 months Amazon Forest, where reduced-impact logging is allowed. The mean mass was similar for forests. capacity 220% 224% forests, fraction...