scholarly journals Importance of long-term observation of buried seeds using in situ seed sowing techniques: a case study of Cepharanthera falcata (Thunb.) Blume (Orchidaceae) in an urban forest

2018 ◽  
Vol 44 (1) ◽  
pp. 233-236
Author(s):  
ITO Ayano ◽  
SHOJI Akinori ◽  
AKASAKI Hiroya ◽  
MATSUMAE Mitsuhiro ◽  
YAMAZAKI Jun ◽  
...  
Keyword(s):  
Urban Forest ◽  
Buried Seeds ◽  
Seed Sowing ◽  
Long Term Observation

scholarly journals ENVIRONMENTAL POLLUTION BY WASTEWATER FROM BROWN COAL PROCESSING ¬ A REMEDIATION CASE STUDY IN GERMANY

2014 ◽  
Vol 22 (1) ◽  
pp. 71-83 ◽  
Author(s):  
Arndt Wiessner ◽  
Jochen A. Müller ◽  
Peter Kuschk ◽  
Uwe Kappelmeyer ◽  
Matthias Kästner ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Large Scale ◽  
Pilot Scale ◽  
Wastewater Disposal ◽  
Interdisciplinary Approaches ◽  
Phenolic Wastewater ◽  
Term Monitoring

The large scale of the contamination by the former carbo-chemical industry in Germany requires new and often interdisciplinary approaches for performing an economically sustainable remediation. For example, a highly toxic and dark-colored phenolic wastewater from a lignite pyrolysis factory was filled into a former open-cast pit, forming a large wastewater disposal pond. This caused an extensive environmental pollution, calling for an ecologically and economically acceptable strategy for remediation. Laboratory-scale investigations and pilot-scale tests were carried out. The result was the development of a strategy for an implementation of full-scale enhanced in situ natural attenuation on the basis of separate habitats in a meromictic pond. Long-term monitoring of the chemical and biological dynamics of the pond demonstrates the metamorphosis of a former highly polluted industrial waste deposition into a nature-integrated ecosystem with reduced danger for the environment, and confirmed the strategy for the chosen remediation management.

Microfluidic passive samplers for in situ collection of live aquatic protists

2014 ◽  
Vol 6 (20) ◽  
pp. 8350-8357 ◽  
Author(s):  
Grant M. Bouchillon ◽  
Jessica Furrer Chau ◽  
George B. McManus ◽  
Leslie M. Shor
Keyword(s):  
High Resolution ◽  
Passive Samplers ◽  
Aquatic Habitats ◽  
Long Term Observation ◽  
In Situ Collection

Examples of microfluidic passive samplers for collecting live protists from aquatic habitats. The samplers allow high-resolution, long-term observation of unstained protists by concentrating and isolating them in nanoliter-scale galleries.

scholarly journals A case of ALM in situ under long-term observation.

Skin Cancer ◽  
2002 ◽  
Vol 17 (2) ◽  
pp. 141-143
Author(s):  
Katsunori MORI ◽  
Takako SHISHIBA
Keyword(s):  
Long Term Observation

scholarly journals Measurement report: Changing characteristics of atmospheric CH<sub>4</sub> in the Tibetan Plateau: records from 1994 to 2019 at the Mount Waliguan station

2021 ◽  
Vol 21 (1) ◽  
pp. 393-413
Author(s):  
Shuo Liu ◽  
Shuangxi Fang ◽  
Peng Liu ◽  
Miao Liang ◽  
Minrui Guo ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
The Tibetan Plateau ◽  
Atmospheric Methane ◽  
Continuous Increase ◽  
Northern India ◽  
Source Regions ◽  
City Regions

Abstract. A 26-year, long-term record of atmospheric methane (CH4) measured in situ at the Mount Waliguan (WLG) station, the only World Meteorological Organization (WMO) and Global Atmosphere Watch (GAW) global station in inland Eurasia, is presented. Overall, a nearly continuous increase in atmospheric CH4 was observed at WLG, with a yearly growth rate of 5.1±0.1 parts per billion (ppb) per year during 1994–2019, except for some particular periods with near-zero or negative values, e.g., 1999–2000 and 2004–2006. The average CH4 mole fraction was only 1799.0±0.4 ppb in 1994 but increased to about 133 ppb and reached a historic level of 1932.0±0.1 ppb in 2019. The case study in the Tibetan Plateau showed that the atmospheric CH4 increased rapidly. During some special periods, it is even larger than that of city regions (e.g., 6.7±0.2 ppb yr−1 in 2003–2007). Generally, the characteristics of CH4 varied in different observing periods as follows: (i) the diurnal cycle has become apparent and the amplitudes of the diurnal or seasonal cycles increased over time; (ii) the wind sectors with elevated CH4 mole fractions switched from ENE-E-ESE-SE-SSE sectors (wind directions) in early periods to NNE-NE-ENE-E sectors in later years; (iii) the area of source regions increased as the years progressed, and strong sources shifted from northeast (city regions) to southwest (northern India); and (iv) the annual growth rates in recent years (e.g., 2008–2019) were significantly larger than those in the early periods (e.g., 1994–2007).

scholarly journals Utilization of shop floor management as a tool for communication and knowledge sharing in the framework of lean logistics: A case study

2021 ◽  
Vol 16 (1) ◽  
pp. 267-276
Author(s):  
Petra Benyahya ◽  
Lucie Macurová
Keyword(s):  
Shop Floor ◽  
First Line ◽  
Line Managers ◽  
Blue Collar Workers ◽  
Real Process ◽  
Lean Logistics ◽  
Long Term Observation ◽  
One Machine

The study investigates whether establishing of the shopfloor management in the company is beneficial for the company or not even in difficult conditions (food production with BRC standards of production, presence of foreigners, agency employees). A qualitative research based on detailed long-term observation the real process of planning and establishing the shopfloor management in the company was used, as well as interviews with industrial engineers, first line managers, blue-collar workers, and shopfloor management practitioners. The company was chosen for this case study on purpose. The findings say it was good to establish SFM in the company. In spite of obstacles, the utilization of machines increased by 20% and one machine (out of 12) could be sold due to redundancy. The need for human capital decreased, the number of scraps decreased, and the cooperation improved.

scholarly journals Assessing the efficiency of a “buried wall” barrier in the establishment of near-surface long-term storage and disposal facilities for RW

2021 ◽  
Vol 14 (1) ◽  
pp. 96-105
Author(s):  
V. V. Suskin ◽  
◽  
I. V. Kapyrin ◽  
F. V. Grigorev ◽  
◽  
...  
Keyword(s):  
Near Surface ◽  
Transfer Processes ◽  
Long Term Storage ◽  
Mass Transfer Processes ◽  
High Degree ◽  
The Impact ◽  
Term Storage

The article evaluates the impact of a “buried wall” barrier on the long-term safety during the long-term storage1 or in-situ disposal of nuclear legacy facilities, in particular, industrial reservoirs, as well as during the development of near-surface disposal facilities for radioactive waste (RWDF). For assessment purposes, filtration and mass transfer processes have been numerically modelled in the GeRa code based on a case study of a reference near-surface facility. The study explores in which way the available covering screen affects the dynamics of contaminant spread. It evaluates the sensitivity of the results to the dispersion parameter commonly characterized by a high degree of uncertainty.

scholarly journals Long-term observation of in situ seismic velocity and attenuation

2003 ◽  
Vol 108 (B6) ◽  
Author(s):  
Keiko Yamamura ◽  
Osam Sano ◽  
Hisashi Utada ◽  
Yasuko Takei ◽  
Shigeru Nakao ◽  
...  
Keyword(s):  
Seismic Velocity ◽  
Long Term Observation

CASE STUDY: STABILISATION OF A RAPIDLY ERODING POINT USING AN INSITU-FILLED GEOTEXTILE CONTAINER GROYNE FIELD

2017 ◽  
pp. 36
Author(s):  
Bobbie Corbett ◽  
Nicholas Wellwood ◽  
David Shing ◽  
Leslie Angus Jackson
Keyword(s):  
Low Cost ◽  
Low Risk ◽  
Recreational Beach ◽  
High Level

Munna Point is a premiere recreational beach in the Noosa River which has been maintained by regular nourishment for over 20 years. As longevity of each nourishment was less than 6 months, the long-term costs were high and efforts were eventually suspended resulting in loss of the beach. In an effort to reinstate the amenity and provide a more stable beach, a groyne field accompanied by nourishment was proposed. To provide a low-impact, low-risk and low-cost solution, the groynes were designed with a low crest using sand-filled geotextile containers. To achieve the design, containers and scour mattresses were filled in-situ using a dredge, which was an innovative application of a methodology typically adopted for much larger containers. The first 3 groynes have successfully been installed as part of the first stage and 12 months of monitoring subsequently undertaken. The groynes have clearly been effective at extending the longevity of the nourishment and the wider intertidal profile has remained very stable. The beach is now successfully enhancing the amenity of the community and experiencing a high level of usage.

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