Abstract The investigation was conducted in the 2019–2020 agricultural season Al-Thaghr area, north of Basrah Governorate, Iraq (latitude 31.145288N and longitude 47.431334E), clay soil. Two factors were used investigation. first factor three tillage systems (heavy by mouldboard plow, low chisel no-till system). second concentrations biocide Trichozon (4 g m -2 , 2 without adding pesticide). ex...

We have developed a high-speed confocal laser microscope. A microlens-array disk set in front of a pinhole-array disk improved optical efficiency more than ten times compared with that of conventional Nipkow confocal microscopy. This new microscope achieves a high-speed measurement of 1 frame/ms. We expect that it will be used for measuring biological and industrial active samples.

Optical Disk Drives are widely used today. However, even though the technology has been available to the consumer during 20 years, there are still performance issues to be improved. This study reveals a way of dealing with the photo diode signals in the optical pick-up to improve the performance of the Optical Disk Drives.

The restoration of class II cavities is predominantly carried out with composite materials. Due to the high failure rate in restoring this type cavity, materials much-improved properties and new application techniques have been promoted. study aimed analyze mechanical behavior several topical (nanocomposites, nanohybrids ormocer) using different techniques. In a lower second molar, occlusal cav...

We describe an efficient method of calculating the radiation pressure due to spectral lines, including all the terms in the velocity gradient tensor. We apply this method to calculate the two-dimensional, time-dependent structure of winds from luminous disks. Qualitative features of our new models are very similar to those we calculated including only the dominant terms in the tensor (Proga, St...

this study was carried out to identify technical-agronomic factors impressible from fish farming in rice fields. this investigation carried out by descriptive survey during july-august 2009. studied cities including talesh, rezvanshahr and masal set in tavalesh region near to caspian sea, north of iran. the questionnaire validity and reliability were determined to enhance the dependability of t...

Synchronous disk write presents a serious performance problem for those applications that require strong data integrity guarantee. This paper describes the design and implementation of Trail, a disk subsystem that features a track-based logging technique to minimize the performance impact of synchronous disk write operations. We have demonstrated in this research that Trailcan reduce the latenc...

The rice–ratoon rice cropping system has the advantages of saving labor and imparting economic benefits. Optimizing tillage straw management is beneficial for improving ratoon growth yield. In this study, field experiments were conducted to examine effects four managements on yield a in central China 2020 2021. included no-till with main-season ratoon-season residues retained soil’s surface (NT...