Thermospheric Heating and Cooling Times During Geomagnetic Storms, Including Extreme Events

We present the first quantitative calculations of thermospheric heating and cooling times for geomagnetic storms of different intensity, including extreme events. We utilize the neutral mass density database of the CHAllenging Minisatellite Payload and Gravity Recovery And Climate Experiment missions to produce thermospheric global system response to geomagnetic storms caused by coronal mass ejections via superposed epoch analysis during May 2001 to December 2015. Storm events are grouped in five different categories based on the minimum value of the SYMH index. We calculate the time from storm onset for the thermosphere to reach maximum intensification (heating time) and the time from onset for the thermosphere to recover (cooling time). We find that heating and cooling times decrease as storm intensity increases and the effect is more pronounced for the cooling times. For extreme storms, the thermospheric heating time is 9.5 hr, while the cooling time is 22 hr

Kualitas Pelayanan Pembuatan Paspor di Kantor Imigrasi Kelas I Semarang

Nowadays, quality of service become issues that keep occur in some publik services. We can see as there are complaints from people in mass media that they dont get an optimal service, it lead to emerge of bad image for the aparatus. Goal of this reasearch is to know and analyze whether the qualty of service in imigration first class semarang already surpass the expectation. Research use three components morgan and murgatroyd's theory that is, “the triangel of balance in service quality” which are interpersonal component, procedure environment or process component, and technical or profesional component to make a better service. In practice, we can categorize is with dimensions in quality of services, tangibel, reliability, responsiviness, assurance, empathy. Reasearch use qualitative method. Reasearch try to understand public services management and effect from analyzing quality of service in process of making passport at imigration in semarang. The result indicates that the employees showed good attitude and friendly to customer, friendly attitude and smiles from the employees made the process is not awkward and better in service. The result shows that the customer felt comforable for the waiting room. However, the parking lot at the imigration class I in semarang is not big enough to contain all the customer. Based on the research about quality of service in process of making passport at immigration class I in semarang. Researcher concludes that there's some room to improve in the passport service done by imigration first class in semarang

Tuning gastropod locomotion: Modeling the influence of mucus rheology on the cost of crawling

Common gastropods such as snails crawl on a solid substrate by propagating muscular waves of shear stress on a viscoelastic mucus. Producing the mucus accounts for the largest component in the gastropod's energy budget, more than twenty times the amount of mechanical work used in crawling. Using a simple mechanical model, we show that the shear-thinning properties of the mucus favor a decrease in the amount of mucus necessary for crawling, thereby decreasing the overall energetic cost of locomotion.Comment: Corrected typo

The radiology of the ischaemic kidney in hypertensive disease

No Abstrac

An economical form of x-ray cinematography

No Abstract

Multicomponent metal-organic framework membranes for advanced functional composites.

The diverse chemical and structural properties of metal-organic frameworks (MOFs) make them attractive for myriad applications, but their native powder form is limiting for industrial implementation. Composite materials of MOFs hold promise as a means of exploiting MOF properties in engineered forms for real-world applications. While interest in MOF composites is growing, research to date has largely focused on utilization of single MOF systems. The vast number of different MOF structures provides ample opportunity to mix and match distinct MOF species in a single composite to prepare multifunctional systems. In this work, we describe the preparation of three types of multi-MOF composites with poly(vinylidene fluoride) (PVDF): (1) co-cast MOF MMMs, (2) mixed MOF MMMs, and (3) multilayer MOF MMMs. Finally, MOF MMMs are explored as catalytic membrane reactors for chemical transformations

EKSPERIMENTAL STUDI APLIKASI PANEL SURYA MONOCRYSTALLINE 50 WP SEBAGAI SUMBER TENAGA AERATOR DENGAN ALIRAN KOMBINASI HORIZONTAL DAN VERTIKAL

investigasi performance aerator tersebut. Dengan menggunakan sel surya (solar cell) 50 WP, baterai 30 Ah, inverter dan aerator dengan kapasitas 40 Watt, sistem hanya dapat beroperasi dari pukul 10:00 sampai pukul 14:00. Daya yang dihasilkan sel surya (solar cell) 50 WP hanya mencapai 35 Watt sampai 37 Watt, sedangkan beban aerator sebesar 40 Watt sehingga terjadi kekurangan supply daya yang mengakibatkan fungsi aki tidak optimal. Kolam ukuran 3,5m x 3m x 2m dapat teraerasi maksimal dengan menggunakan aerator 40 Watt. Kadar Dissolve Oxygen (DO) dari hasil aerator 40 Watt untuk mengaerasi kolam ukuran 3,5m x 3m x 2m adalah 5,9 mg/L sehingga dapat dipergunakan sebagai salah satu jenis aerator yang cocok untuk budiday

KickAct: the Implementation & Evaluation of a Youth Empowerment & Leadership Program

KickAct is a program that combines martial arts and performing arts to empower youth and engage them in creative social change. Youth experience a lack of community engagement and partnership with the adult. Many youth face additional challenges, ranging from lack of support in school to violence at home, that can negatively impact their life. KickAct is designed to provide youth with the necessary skills and experience to thrive as active participants in their communities. Due to inconsistent attendance and participation, it was not possible to determine whether the workshop format was a successful method for youth empowerment. However, the workshop proved to be an effective tool for an initial youth group assessment

Interplanetary Shock Data Base

In this manuscript, I provide an updated interplanetary shock data base I published in previous works. This list has now 603 events. I also present and describe the data and methodologies used to compile this list. The main contribution of this work is to provide an updated end accurate interplanetary shock data base for future space physics and space weather investigations. The list has been uploaded to Zenodo, and a link is provided for accessing the data files. As for Frontiers requirements, the access of the list has kept to be restricted during the review process. The list will be made public if/when the manuscript is published.Comment: 2 Figures, 2 Listings, 2 Table