Oil viscosity from experiments and model calculations

Five frequently-used models were chosen and evaluated to calculate the viscosity of the mixed oil. Totally twenty mixed oil samples were prepared with different ratios of light to crude oil from different oil wells but the same oil field. The viscosities of the mixtures under the same shear rates of 10 s**-1 were measured using a rotation viscometer at the temperatures ranging from 30°C to 120°C. After comparing all of the experimental data with the corresponding model values, the best one of the five models for this oil field was determined. Using the experimental data, one model with a better accuracy than the existing models was developed to calculate the viscosity of mixed oils. Another model was derived to predict the viscosity of mixed oils at different temperatures and different values of mixing ratio of light to heavy oil.

Northwest China and Central Asia, 1750 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Carte de la petite Bukharie et pays voisins : pour servir a l'Histoire générale des voyages, dressée sur les observations les plus récentes par N. Bellin, Ingr. de la Mare., 1749. It was published by Pierre de Hondt in 1750. Scale [ca. 1:8,500,000]. Covers Northwest China, including portions of Xinjiang Uygur Zizhiqu, Gansu Sheng, Qinghai Sheng, Tibet, Inner Mongolia, and portions of India, Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Afghanistan, Pakistan, and Mongolia. Map in French and Dutch.The image inside the map neatline is georeferenced to the surface of the earth and fit to the Asia North Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, territorial boundaries, roads, and more. Relief shown pictorially.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

Central Asia, 1908 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Eastern Turkistan, specially prepared for the Foreign Department, from India ; published under direction of Colonel F. B. Longe, R. E., Surveyor General of India. It was published by Survey of India in Feb. 1908. Scale [1:2,027,520]. Covers a portion of Central Asia including Xinjiang Uygur Zizhiqu (also known as Chinese Turkestan) and portions of Afghanistan, India, Kyrgyzstan, Pakistan, and Tajikistan. The image inside the map neatline is georeferenced to the surface of the earth and fit to the a modified 'Asia Lambert Conformal Conic' projection with a central meridian of 84 degrees East projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, railroads, territorial boundaries, shoreline features, and more. Relief shown by spot heights. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection as part of the Open Collections Program at Harvard University project: Islamic Heritage Project. Maps selected for the project represent a range of regions, originators, ground condition dates, scales, and purposes. The Islamic Heritage Project consists of over 100,000 digitized pages from Harvard's collections of Islamic manuscripts and published materials. Supported by Prince Alwaleed Bin Talal and developed in association with the Prince Alwaleed Bin Talal Islamic Studies Program at Harvard University.

Taʼrikh-i emeniyye

Mullā Mūsá ibn Mullā ʻĪsá Sayrāmī nīng taʼlīfī.

Eastern Turkistan

specially prepared for the Foreign Department, from India ; published under direction of Colonel F. B. Longe, R. E., Surveyor General of India.

Z̤iyāʼ al-qulūb : manuscript, undated

A biography of Naqshabandi shaykh Khvājah Isḥāq, written by a disciple of his.

Janāb-i Ba-davlatnī hikāyātlārī : manuscript, 1904 or 5

An eyewitness account of Yaqub Beg's rule in parts of Xinjiang.

Central Asian documents : manuscript, 1558-1804

Various dates (966-1219 [1558-1804]). Addressed to various local rulers in Yarkand and Kashgar.

Go Gorno-Badakhshan. EUCAM Commentary No. 19, October 2011

The autonomous region of Gorno-Badakhshan (GBAO) in Tajikistan offers one of the world’s most impressive landscapes. The Pamir Mountains with peaks of up to 7,500 meters is second only to the Himalayas. Culturally the region also has much to offer with a variety of well-preserved traditions and numerous languages. GBAO, which makes up 45 per cent of Tajikistan’s territory but only 3 per cent of its population, is however extremely isolated. From Dushanbe there are adventurous but irregular flights in late spring, summer and early autumn but most travellers will need to take a bumpy 17 hour car journey. Other options to reach GBAO are equally challenging, either mountain passes from China’s Xinjiang region and the city of Osh in Kyrgyzstan or crossing the Panj River from northeast Afghanistan where a few bridges have been built.

(Table) Radiocarbon datings of sediment core BLK-1 obtained from Barkol Lake, China

The Barkol Lake, as a closed inland lake, is located at the northeast Xinjiang in northwest China. A combination of geochemical indicators including d18O and d13C of carbonate, TOC, carbonate contents, as well as grain size proxies and magnetic susceptibility of sediments obtained from a newly recovered section at this lake, provides a high-resolution history of climatic change in the past 9400 years. Multi-indicators reflect that Holocene climatic change in the study region generally follows the Westerly Wind pattern of Holocene, and three climatic periods can be identified. Between 9400 and 7500 cal a B.P., climate was characterized by relatively drier and colder condition. From 7500 to 5800 cal a B.P., a relatively warmer and moister climate prevailed, but between 5800 and 3500 cal a B.P., climate shifted towards warmer and drier conditions. A relatively colder and wetter climate prevailed during 3500~1000 cal a B.P., then it changed towards cold and dry between 1000 and 500 cal a B.P.; after 500 cal a B.P., climate changed towards warm and dry conditions again. This study reflects that during the Middle Holocene (from ca 7000 to 3500 cal a B.P.), variations of carbonate d18O of sediments from several lakes in the northern Xinjiang were synchronous with that of Qinghai Lake, where was strongly influenced by the South Asian monsoon; however, after 3500 cal a B.P. this consistency was interrupted, possibly resulting from a re-domination of the Westerly Wind and the retreat of South Asian monsoon in the northern Xinjiang.

Xijiang bei cheng /

Xinjiang jian zhi zhi zi--Xinjiang zhi guan biao zi shi san pian--Xinjiang ren wu zhi zi--Xinjiang shi ye zhi cong xu--Xinjiang you chuan zhi cong xu--fu Sun an wen lu.

Xiyu zong zhi : 4 juan /

Ex Libris: J. F. Rock.

Urinary arsenic, porphyrins and malondialdehyde in a population 16 years after arsenic mitigation program in Xinjian, China

Arsenic contamination of groundwater (0.05 to 0.84 mg/L) in Kuitun, Xinjiang was first found in 1970’s. Alternative clean surface water was introduced in 1985. We aimed to assess the exposure and heath outcome since the mitigation. In 2000, we collected a total of 360 urine samples from villagers from the endemic area and a nearby control area for arsenic (As), porphyrins and malondialdehyde (MDA) measurements. The averaged urinary As level of villagers from the endemic site (117±8.3 μg/g creatinine; 4.2 to 943.8 μg/g creat) was higher than that of the control site (73.6±3.2 μg/g creat). No significant differences were found in urinary porphyrins or MDA between the endemic and control sites. However, when the urinary arsenic was higher than 150 μg/g creat, these two biomarkers were higher in the exposed group than the control. Within the exposed group, villagers with arsenic-related skin symptoms had higher arsenic, uroporphyrin and MDA compared to those who had not shown symptoms. Sine the water mitigation, villagers whose urinary arsenic levels were 270 μg/g creat dropped from 20% to 10% of the population. Population with arsenic-related skin symptoms remained unchanged at 31%. We noted that 7.8% of those who had skin lesions were born after the implementation of intervention and that some villagers still prefer to drink the groundwater. Further, in the dry season, lack of surface water and electrical power breakdowns are to blame for failure to ensure continuous supply of clean water. It is concluded that despite the prompt action and successful water mitigation program to curb arsenic poisonings, it is essential to continue to monitor the health outcome of this population.

Bomb-tritium input function calculated from the details of the nuclear atmospheric bomb tests released by the UNSCEAR [2000]

Improving the representation of the hydrological cycle in Atmospheric General Circulation Models (AGCMs) is one of the main challenges in modeling the Earth's climate system. One way to evaluate model performance is to simulate the transport of water isotopes. Among those available, tritium (HTO) is an extremely valuable tracer, because its content in the different reservoirs involved in the water cycle (stratosphere, troposphere, ocean) varies by order of magnitude. Previous work incorporated natural tritium into LMDZ-iso, a version of the LMDZ general circulation model enhanced by water isotope diagnostics. Here for the first time, the anthropogenic tritium injected by each of the atmospheric nuclear-bomb tests between 1945 and 1980 has been first estimated and further implemented in the model; it creates an opportunity to evaluate certain aspects of LDMZ over several decades by following the bomb-tritium transient signal through the hydrological cycle. Simulations of tritium in water vapor and precipitation for the period 1950-2008, with both natural and anthropogenic components, are presented in this study. LMDZ-iso satisfactorily reproduces the general shape of the temporal evolution of tritium. However, LMDZ-iso simulates too high a bomb-tritium peak followed by too strong a decrease of tritium in precipitation. The too diffusive vertical advection in AGCMs crucially affects the residence time of tritium in the stratosphere. This insight into model performance demonstrates that the implementation of tritium in an AGCM provides a new and valuable test of the modeled atmospheric transport, complementing water stable isotope modeling.