Abstract Our aim is to measure the interstellar 14 N/ 15 N ratio across Galaxy, establish a standard data set on ammonia isotope ratios, and provide new constraints Galactic chemical evolution. The ( J , K ) = (1, 1), (2, 2), (3, 3) lines of NH 3 were observed with Shanghai Tianma 65 m radio telescope (TMRT) Effelsberg 100 toward large sample 210 sources. One hundred fourty-one these sources de...

Intensive urbanization and global warming are impacting the health well-being of urban population. Nevertheless, environments with different designs will have micro local climate conditions. This study used data from micrometeorological measurements performed in spaces (downtown, park, riverside) Banja Luka, Bosnia Herzegovina, on hot summer days June 2021. Air temperature, relative humidity, w...

Traditional alleys in China are mostly characterized by dense population, poor infrastructure, and narrow streets. The general renewal approaches of traditional paid more attention to the physical space while they lack consideration for thermal comfort residents, which often results declines rational design vitality community. This research takes Da Long Wang Xiang historical district Zhenjiang...

In hot, arid regions on university campuses, students are more vulnerable to heat stresses than in street canyons terms of function; however, the knowledge impact built environments thermal performance is still lacking. two summer and winter days, shading effect existing urban trees pattern a campus Egypt was examined correlate their Sky View Factor (SVF) with environment, meteorology, Physiolo...

Air pollution, such as particulate matter (PM), and extreme weather are causing increasingly complex problems socioeconomic damage in urban environments year-round. This study predicts air pollution changes that occur street canyons the basic data necessary for research on energy conservation. Changes PM microclimate elements based change floor area ratio analyzed. In addition, effects of distr...

Outdoor environment and its requirement are one of the crucial issues of the designer especially in the residential complexes .early stage simulation is a method which is considered in many studies and projects to demonstrate and predict the environmental performance of the buildings. Therefore in this study to assess the importance of the early-stage environmental consideration through simulat...

Greenery strategies and shaded pedestrian passages have become requirements for designing smart cities in developed countries. One of the most difficult challenges designers is hot arid climates while maintaining a proper level outdoor thermal comfort. The focus on creating comfortable climate people throughout afternoon under sun, particularly countries where summer temperatures rise excessive...

The East Asian Very Long Baseline Interferometry (VLBI) Network (EAVN) is a rapidly evolving international VLBI array that currently promoted under joint efforts among China, Japan and Korea. EAVN aims at forming by combining large number of radio telescopes distributed over regions. After the combination Korean (KVN) Exploration Radio Astrometry (VERA) into KaVA, further expansion with in Asia...

Vegetation moderates a microclimate by casting shadows, increasing light reflection, evaporation and perspiration; and correcting wind patterns. The present study aims to investigate the microclimatic role of vegetated surfaces and bodies in improving thermal comfort in outdoor spaces between buildings. The main research question is which of the green system modes, that is, horizontal vegetatio...