نتایج جستجو برای: 30 cm and 30 cm then

تعداد نتایج: 16915215  

The present study focuses on the past (1985) and current (2018) status of the Naama’s Sabkha, particularly its salinity, vegetation, and water status. The acquired results will be useful for the preservation of Sabkha biodiversity. The representative sampling allowed us to make 136 soil samples over two depths: topsoil (0-4 cm) and down soil (4-30 cm) layers. The salinity analyses revealed that...

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

the aim of this study is comparison of soil characteristics and biodiversity in plantation of bald cypress and caucasian alder forest stands in kludeh region (mazandaran province). in order to study biodiversity in forest stands and control region, 10 sample plots (releve) were selected and the name and abundance of plant species of the forest floor were recorded. biodiversity of herbal plants ...

Journal: : 2021

As human societies grow, the problem of waste management becomes one pressing issues that need to be addressed. Recycling and reuse are effective measures prevent pollution conserve natural resources. In this study, possibility using glass as an alternative was used a partial weight substitute for fine aggregates with replacement ratios 10, 20, 30, 40% by weight, formed into test models (15 cm ...

Journal: :KnE Social Sciences 2022

As part of the community service program between Muria Kudus University and pottery craftsmen in Mayong Lor Village, Jepara, Central Java, a 30-cm mortar molding machine was provided to with an aim increase production diameter – leading local product Village area as well means educating on their development. This article discusses process before after use describes prototype machine. The author...

ژورنال: علوم آب و خاک 2017

Bi-level drainage system is a type of underground drainage systems, in which adjacent drainage lines are installed at different depths. In the Hydraulics Laboratory, Ferdowsi University of Mashhad, a model was built, that include a cube tank 2 meters in length, width and height of 1 meters was made ​​of galvanized. In this model, two rows 20 cm apart from each other drains were installed. As dr...

ژورنال: علوم آب و خاک 2014
شکل آبادی, محسن , محبوبی, علی اکبر , محمودزاده, حمید ,

Organic carbon pools and carbon lability directly affect soil biological, physical and chemical characteristics. Besides, capacity of self-organization of soil is related to the organic carbon pools. Sand size fraction (> 50 µm) organic matter is more labile than silt+clay size fraction organic matter. Assessment of this organic carbon variation can be a suitable index to determine soil quality...

2014
Yidong Wang Zhong-Liang Wang Xiaoping Feng Changcheng Guo Qing Chen

Over the past six decades, coastal wetlands in China have experienced rapid and extensive agricultural reclamation. In the context of saline conditions, long-term effect of cultivation after reclamation on soil chemical properties has not been well understood. We studied this issue using a case of approximately 60-years cultivation of a coastal saline marsh in Bohai Rim, northern China. The res...

2012
Jung Lee Jeong Min Lee Jung-Hwan Yoon Jae Young Lee Se Hyung Kim Jeong Eun Lee Joon Koo Han Byung Ihn Choi

OBJECTIVE To prospectively evaluate the safety and short-term therapeutic efficacy of switching monopolar radiofrequency ablation (RFA) with multiple electrodes to treat medium-sized (3.1-5.0 cm), hepatocellular carcinomas (HCC). MATERIALS AND METHODS In this prospective study, 30 patients with single medium-sized HCCs (mean, 3.5 cm; range, 3.1-4.4 cm) were enrolled. The patients were treated...

Journal: :Journal of the Korea Institute of Building Construction 2013

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