scholarly journals II.—Notes on some Remains of Cryptocleidus from the Kellaways Rock of East Yorkshire

1900 ◽  
Vol 7 (12) ◽  
pp. 535-538 ◽  
Author(s):  
Thomas Sheppard
Keyword(s):  
Western Slope ◽  
White Sand ◽  
Small Section ◽  
Single Instance ◽  
Short Time ◽  
Made In

On visiting Brough a short time ago I noticed a small section had been made on the western slope of Mill Hill, about twenty or thirty feet below the top. The excavation is made in soft white sand, which is very ferruginous in places. Beds of hard sandstone, varying in thickness from one to three inches, traverse it in the upper part of the section. These beds of sandstone are practically horizontal, and contain casts of Belemnites Owenii, Gryphæa bilobata, Trigonia, and other characteristic Kellaways Rock fossils. In not a single instance was a portion of a shell remaining, the whole of the calcite having been dissolved away. There is only a thin covering of soil; and this contains numerous pebbles of doubtful origin, and some pieces of Roman pottery.

scholarly journals Synthesis of Metal Organic Frameworks by Ball-Milling

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 15
Author(s):  
Cheng-An Tao ◽  
Jian-Fang Wang
Keyword(s):  
Ball Milling ◽  
Large Scale ◽  
Raw Materials ◽  
Metal Organic Frameworks ◽  
Research Topic ◽  
Mass Ratio ◽  
Time Consumption ◽  
Metal Organic ◽  
Short Time ◽  
Made In

Metal-organic frameworks (MOFs) have been used in adsorption, separation, catalysis, sensing, photo/electro/magnetics, and biomedical fields because of their unique periodic pore structure and excellent properties and have become a hot research topic in recent years. Ball milling is a method of small pollution, short time-consumption, and large-scale synthesis of MOFs. In recent years, many important advances have been made. In this paper, the influencing factors of MOFs synthesized by grinding were reviewed systematically from four aspects: auxiliary additives, metal sources, organic linkers, and reaction specific conditions (such as frequency, reaction time, and mass ratio of ball and raw materials). The prospect for the future development of the synthesis of MOFs by grinding was proposed.

scholarly journals ACTUALITY OF APPLICATION OF BIOGAS INSTALLATIONS IN RUSSIA AND ABROAD

2017 ◽  
Vol 12 (2) ◽  
pp. 71-74
Author(s):  
Булат Зиганшин ◽  
Bulat Ziganshin ◽  
Ильназ Кашапов ◽  
Ilnaz Kashapov ◽  
Ильнур Гайфуллин ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Power Plants ◽  
Biogas Production ◽  
Operating Experience ◽  
Farm Animals ◽  
National Program ◽  
Urban Wastewater ◽  
The World ◽  
Short Time ◽  
Made In

The first scientific developments in the field of biogas technologies were made in Russia more than 70 years ago. Since the 50th years one of the main directions was the anaerobic processing of activated sludge and sediments of urban wastewater. This method attracted attention in connection with the idea of obtaining biogas mainly from the manure of farm animals. Thanks to this in the middle of 50th years a number of pilot plants for biogas production were built in Zaporozhia, Belorussian, Georgian, Moldavian branches of All-Russian Institute of Agriculture Electrification, and also in Ekaterinburg. However, the operating experience of these installations was insignificant - one - two seasons. The problem of obtaining and using biogas is given great attention abroad. In a short time, in many countries around the world a whole industry for the production of biogas has emerged. The leader in the development of biogas industry is China. Since the middle of 1970, the National Program for the production of biogas from livestock wastes has been operating in this country. Currently, there are 10 million farm bioreactors. In addition, 40 000 biogas stations, 24 000 biogas treatment plants operate in China, which provides operation of 190 power plants.

scholarly journals Ineffable Cultures or Material Devices: What Valuation Studies can Learn from the Disappearance of Ensured Solidarity in a Health Care Market

2015 ◽  
Vol 3 (1) ◽  
pp. 45-73 ◽  
Author(s):  
Teun Zuiderent-Jerak ◽  
Stans Van Egmond
Keyword(s):  
Health Care ◽  
Decisive Role ◽  
Cultural Value ◽  
Health Care Market ◽  
A Value ◽  
Dutch Health ◽  
Short Time ◽  
Regulated Competition ◽  
Made In

Valuation studies addresses how values are made in valuation practices. A next - or rather previous - question becomes: what then makes valuation practices? Two oppositional replies are starting to dominate how that question can be answered: a more materially oriented focus on devices of valuation and a more sociologically inclined focus on ineffable valuation cultures. The debate between proponents of both approaches may easily turn into the kind of leapfrog debates that have dominated many previous discussions on whether culture or materiality would play a decisive role in driving history. This paper explores a less repetitive reply. It does so by analyzing the puzzling case of the demise of solidarity as a core value within the recent Dutch health care system of regulated competition. While “solidarity among the insured” was both a strong cultural value within the Dutch welfare-based health system, and a value that was built into market devices by health economists, within a fairly short time “fairness” became of lesser importance than “competition”. This makes us call for a more historical, relational, and dynamic understanding of the role of economists, market devices, and of culture in valuation studies.

scholarly journals Analysis on the Possibility of Eliminating Interference from Paraseismic Vibration Signals Induced by the Detonation of Explosive Materials

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6401
Author(s):  
Józef Pyra ◽  
Maciej Kłaczyński ◽  
Rafał Burdzik
Keyword(s):  
Acoustic Waves ◽  
Vibration Signal ◽  
Test Results ◽  
Subtraction Method ◽  
Reverberation Chamber ◽  
Explosive Materials ◽  
Short Time ◽  
Spectral Subtraction Method ◽  
The Impact ◽  
Made In

This article presents the results of studies on the impact of acoustic waves on geophones and microphones used to measure airblasts carried out in a reverberation chamber. During the tests, a number of test signals were generated, of which two are presented in this article: frequency-modulated sine (sine sweep) waves in the 30–300 Hz range, and the result of detonating 3 g of pyrotechnic material inside the chamber. Then, based on the short-time Fourier transform, the spectral subtraction method was used to remove unwanted disruption interfering with the recorded signal. Using MATLAB software, a program was written that was calibrated and adapted to the specifics of the measuring equipment based on the collected test results. As a result, it was possible to clean the signals of interference and obtain a vibration signal propagated by the substrate. The results are based on signals registered in the laboratory and made in field conditions during the detonation of explosive materials.

scholarly journals Ibis and the city: bogan kitsch and the avian revisualization of Sydney

2020 ◽  
Vol 19 (3) ◽  
pp. 369-390
Author(s):  
Paul Allatson ◽  
Andrea Connor
Keyword(s):  
Urban Landscape ◽  
Time Frame ◽  
Urban Spaces ◽  
Inland Waterways ◽  
Nesting Sites ◽  
White Ibis ◽  
Australian City ◽  
Short Time ◽  
The City ◽  
Made In

The Australian White Ibis (Ibis) ( Threskiornis molucca) is one of three endemic Ibis species in Australia. In a short time frame beginning in the 1970s, this species has moved from inland waterways to urban centres along the eastern and southeastern seaboards, Darwin and the Western Australian southwest. Today Ibis are at home in cities across the country, where they thrive on the food waste, water resources and nesting sites supplied by humans. In this article, the authors focus on Sydney to argue that the physical and cultural inroads of Ibis, and the birds’ urban homeliness, are resignifying urban surfaces and the multispecies ecologies in which contemporary Australians operate. They explore how the very physical and sensory presence of Ibis disrupts the assumptions of many urban Australians, and visitors from overseas, that cities are human-centric or human-dominant, non-hybrid assemblages. They also introduce to this discussion of disrupted human expectations a cultural parallel, namely, the recent rise of Ibis in popular culture as an icon-in-the-making of the nation and as a totem of the modern Australian city itself. This trend exemplifies an avian-led revisualization of urban spaces, and is notable for its visual appeals to Ibis kitsch, and to working class or ‘bogan’ sensibilities that assert their place alongside cosmopolitan visions of being Australian. Sometimes kitsch Ibis imagery erupts across the urban landscape, as occurs with many Ibis murals. At other times it infiltrates daily life on clothing, on football club, university and business logos, as tattoos on people’s skin, and as words in daily idiom, confirmed by terms such as ‘picnic pirates’, ‘tip turkeys’ and ‘bin chickens’. The article uses a visual vignette methodology to chart Ibis moves into Sydney and the realms of representation alike, and thus to reveal how new zoöpolitical entanglements are being made in the 21st century.

Seventh Periodic Monitoring Report on the Status of Implementation Plans in Response to Board-Endorsed IEO Recommendations

Policy Papers ◽  
2015 ◽  
Vol 15 (58) ◽  
Author(s):  
Keyword(s):  
Periodic Monitoring ◽  
The Status ◽  
High Level ◽  
Short Time ◽  
Implementation Plans ◽  
Monitoring Report ◽  
Made In

The Seventh PMR includes: (i) a discussion of progress made over the last year on the actions corresponding to four Management Implementation Plans (MIPs) that were classified as still “in progress” in the previous PMR; and (ii) an assessment of the progress made in achieving the high-level objectives in three areas directly related to those MIPs. In addition, an update on substantive issues related to five older MIPs agreed since 2007 is provided at the end of the report. Three new evaluations have been completed by the IEO since March 2014. In July and August 2015, Management issued the MIPs in response to these evaluations. Given that only a short time has passed since their completion, progress in addressing the actions contemplated in those MIPs will be discussed in the next PMR.

scholarly journals I.—On the Discovery of a Species of Iguanodon in the Kimmeridge Clay near Oxford; and a Notice of a very Fossiliferous Band of the Shotover Sands

1879 ◽  
Vol 6 (5) ◽  
pp. 193-195
Author(s):  
Prestwich
Keyword(s):  
Small Fragment ◽  
Almost All ◽  
Short Time ◽  
Made In

An interesting discovery has just been made in this district. A short time since some workmen from Cumnor brought to the Museum a basketful of bones which they said they had found in digging the clay at the brick works, now in course of large extension, at Cumnor Hurst, three miles west of Oxford. On cleaning the specimens, the characteristic vertebræ and teeth of Iguanodon were recognized. A large number of the vertebræ are entire, but the jaw is in fragments, with many teeth, however, in position. The skull is wanting, except a small fragment. One of the feet, with the claws, is almost complete. The larger bones are almost all broken, buty we hope to be able to reunite many of the fragments, as there is reason to belive that the skeleton was entire or nearly so. The smaller bones and the extremities of the larger bones are in a beautiful state of preservation. It is a smaller animal than the Wealden Iguanodon Mantelli, but whether owing to age or difference of species remains to be determined. It seems to be indicate a different species, with smaller and more delicately-formed bones.

Low Frequency Noise Level Variations and Annoyance in Working Environments

1997 ◽  
Vol 16 (2) ◽  
pp. 81-87 ◽  
Author(s):  
Kjell Holmberg ◽  
Ulf Landström ◽  
Anders Kjellberg
Keyword(s):  
Noise Level ◽  
Low Frequency ◽  
Personal Control ◽  
Frequency Noise ◽  
Strongly Correlated ◽  
Low Frequency Noise ◽  
Working Environments ◽  
Independent Variable ◽  
Short Time ◽  
Made In

Indicators of noise level variations were correlated to noise annoyance in workplaces. This was made in a selected group exposed to low frequency noise. The low frequency noise group, consisting of 35 individuals, was selected from a group of 337 persons from various working environments. The noise was recorded at each person's workplace. The subjective annoyance response was rated in a questionnaire. Further questions regarding situational and individual factors were also included. The indicators were statistical countings of successive differences between discrete Leq values over short time periods. Interaction between noise level variations and other factors was also included in the study. The correlation was studied by multiple regression analysis with the rated annoyance as dependent variable. Personal control over the noise was entered into the analysis as a first independent variable. Change in R2 when entering the level variations reflected the relative importance of them in comparison to noise level. According to the results low frequency noise level variation explains about 11 percent of the annoyance variance in this material. In the study it was also found that personal control over the low frequency noise was strongly correlated to rated annoyance and that noise level was not.

Money, Morphology and Molecules. Some comments on Wortley, Bennett and Scotland (2002), Taxonomy and phylogeny reconstruction: two distinct research agendas in systematics. (see p. 335 of this issue)

2002 ◽  
Vol 59 (3) ◽  
pp. 451-457 ◽  
Author(s):  
P. F. STEVENS
Keyword(s):  
Molecular Systematics ◽  
Large Scale ◽  
Species Level ◽  
Molecular Techniques ◽  
Morphological Data ◽  
Phylogeny Reconstruction ◽  
Reasonable Time ◽  
The Past ◽  
Short Time ◽  
Made In

The state of systematics, for convenience here divided into taxonomy (the delimitation, description and inventory of species) and phylogeny reconstruction, is evaluated. Molecular systematics may seem overemphasized, but the resulting gains made in our understanding of relationships in a relatively short time are very considerable. Although morphological data currently play only a limited role in detecting large-scale phylogenetic pattern, the analysis by Wortley et al. of the role morphology has played in the past is not easily interpreted. At species level, it is unclear what effect molecular techniques will have on our understanding of species limits, but it is likely to be considerable. Although taxonomy is both essential and underfunded, there seems little point in asking for more money until we can justify the limits of the species we describe more clearly and until we have cleared up the impediments that so much slow the practice of taxonomy. Business cannot remain as usual if any of the grand inventory projects we have started are to be finished within a reasonable time, or even to be of much use when they are.

scholarly journals IV.—On the Discovery of a Skeleton of the Hippopotamus in Post-pliocene Drift near Motcomb, Dorset

1869 ◽  
Vol 6 (59) ◽  
pp. 206-208
Author(s):  
T. Thompson
Keyword(s):  
Thin Section ◽  
Geological Survey ◽  
Green Sand ◽  
Weak State ◽  
Small Section ◽  
Short Time ◽  
Bison Priscus ◽  
Horn Core ◽  
Leg Bones

The existence of Post-pliocene deposits in this neighbourhood has until lately been quite unknown, nothing of the kind having been detected either by the Geological Survey or subsequent observers. However, in tlie winter of 1866, a small section was exposed in a brick-field situated on a low rising-ground at the first milestone out of Shaftesbtiry towards Gillingham, and known as Hawkers' Hill. The clay here dug for brickmaking is Kimmeridge, presenting fossilized bones of the Pliosaurus and Icthyosaurus, and very friable remains of an Ammonite, etc. The attention of the writer was first attracted to the Drift on observing, above part of the Kimmeridge clay, a thin section of soil of an ochreous tint due to oxide of iron, and somewhat resembling the loose stratum of chert and sand which caps the neighbouring Green-sand rock. He learnt on inquiring of the labourers that they had recently found some large bones in this deposit, but thinking them of no use they had wheeled them off with the rubbish, in which they then lay, efiectually re-buried. Much interested at this announcement, he induced the men again to remove the rubbish, and found that the bones were some vertebræ of a large mammalian animal, together with fragments of the ribs and leg-bones. They were, of course, not at all fossilized, and their original weak state had been sadly aggravated by a second burial and disinterment. Nothing more was turned out that winter, and it was not until the end of 1867, that digging was resumed. Further portions of the same skeleton were now found, including another instalment of vertebræ, and portions of the skull and jaws. With the latter were several teeth in a suffciently entire state to show that the creature weis undoubtedly a Hippopotamus; numerous fragments of the tusks affording further proof of this. The writer now frequently visited and watched “the diggings,” and after a short time two horn-cores, considerable portions of the skull, and some fragments of the leg-bones of Bison priscus of unusual size came to light. The more perfect horn-core is 18 inches long and 14: inches in diameter at the base.

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