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排序方式: 共有336条查询结果,搜索用时 140 毫秒
151.
Umme Salma Zohora Mohammad Shahedur Rahman Abdul Wahab Khan Masahiro Okanami Takashi Ano 《环境科学学报(英文版)》2013
To enhance the production of lipopeptide antibiotic iturin A, nutrient contents of the culture mediums were investigated in both submerged and biofilm fermentations. As a carbon source maltose and as nitrogen source, fish protein was used. In submerged fermentation maltose uptake was found lower (12%) compared to biofilm fermentation (15%) that was associated with higher cellular growth in biofilm. However, requirement of nitrogen (fish protein) concentration was found similar in both submerged and biofilm fermentations. Production of iturin A in submerged fermentation with 12% maltose and 5% fish protein was 4450 mg/L, and in biofilm fermentation it was 5050 mg/L when 15% maltose and 5% fish protein was used. 相似文献
152.
Ahmad Munir Chandio Abbas Ali Solangi Yasir Ahmed Shah Syed Ahsan Ali Shahzad Farrukh Rehman Abdul Jabeen Gul 《Environmental science and pollution research international》2021,28(2):1502-1518
Environmental Science and Pollution Research - This research investigates the dynamic interactive associations among sustainable investment in the energy sector, air pollution, and sustainable... 相似文献
153.
Khairudin Nor Fazila Mohammadi Maedeh Mohamed Abdul Rahman 《Environmental science and pollution research international》2021,28(23):29157-29176
Environmental Science and Pollution Research - This study deals with the development of alumina-supported cobalt (Co/Al2O3) catalysts with remarkable performance in dry reforming of methane (DRM)... 相似文献
154.
Syed Aamir Aijaz Kamal Muhammad Abdul Tripathi Ravindra 《Environmental science and pollution research international》2021,28(39):54744-54755
Environmental Science and Pollution Research - Environmental pollution caused by carbon emissions is an emerging issue to study among researchers. The nexus between environmental pollution and... 相似文献
155.
An Hui Razzaq Asif Nawaz Ahsan Noman Sohail M. Khan Syed Abdul Rehman 《Environmental science and pollution research international》2021,28(37):51022-51045
Environmental Science and Pollution Research - The Belt and Road initiative (BRI) mainly relies on the traditional and underdeveloped logistical trade routes including the terrestrial and oceanic... 相似文献
156.
Zeeshan Jave Cheng Liu Muhammad Fahim Khokhar Chengzhi Xing Wei Tan Muhammad Ahmed Subhani Abdul Rehman Aimon Tanvir 《环境科学学报(英文版)》2019,31(6):296-305
This study presents the Multi Axis Differential Optical Absorption Spectroscopy(MAXDOAS) measurements for Glyoxal(CHOCHO) in Beijing, China(39.95°N, 116.32°E). CHOCHO is the smallest compound of di-carbonyl group. As a primary sink of CHOCHO, its photolysis with NOx(oxides of nitrogen) results in the production of tropospheric ozone. Therefore,the focus of CHOCHO DOAS measurements is increasing in trend. We did the measurements from 09 May 2017 to 09 September 2017. The study was conducted to compare different retrieval settings in order to reveal best DOAS fit settings for CHOCHO;furthermore, effect of haze and non-haze days on CHOCHO concentration was examined.The root mean square of residual and Differential Slant Column density(dSCD) error was reduced when measurements were done with lower wavelength limit around 432–438 nm and upper intervals around 455–460 nm. Thus, lower wavelength intervals around432–438 nm and upper intervals around 457–460 nm were best for the retrieval of dSCDs for CHOCHO. Meteorological conditions like haze or non-haze days did not have significant effect on DOAS fit parameters. The CHOCHO vertical column densities range from 1.33 E +14 to 9.77 E + 14 molecules/cm2 during the study period with average of 6.16 E +14 molecules/cm2. The results indicated that during haze days CHOCHO concentration was higher because of lower rate of photolysis and atmospheric oxidation potential. Our results did not show any significant weekend effect on CHOCHO atmospheric concentration. 相似文献
157.
Fouad I. Kanbour Abdul Messih N. Kitto Shetha Yassein Faiza A. Al-Taie Asma Ali 《Environment international》1985,11(5):459-463
Samples of atmospheric particulate matter obtained from representative areas of the city of Baghdad were collected on glass fiber filters using a high-volume sampler. Atomic absorption techniques were used to analyze the total suspended particulates (TSP) for the following trace metals; Fe, Cu, Zn, Pb, Mn, Cr, Cd, Co, and Hg. Sulfates were measured by turbidemetric method. Ion-selective electrodes was used for chloride analysis. It is concluded that the major components of TSP in the ambient air of Baghdad consist of mineral dust. Pb and Cd gave high enrichment factor values, which implies enrichment of these two metals from anthropogenic sources. High enrichment factors were also obtained for Zn and Cu. It is also concluded that in this arid area, the black smoke reflectance method is not suitable for measuring total suspended matter gravimetrically. 相似文献
158.
Al-khadher Sadeq Abdullah Abdo Abdul Kadir Aeslina Al-Gheethi Adel Ali Saeed Azhari Nur Wahidah 《Environmental science and pollution research international》2021,28(46):65513-65524
Environmental Science and Pollution Research - The current work aimed to study the physical, chemical and biological properties of food wastes generated from small and medium industries by using... 相似文献
159.
Hussain Sajjad Ouyang Ping Zhu Yingkun Khalique Abdul He Changliang Liang Xiaoxia Shu Gang Yin Lizi 《Environmental science and pollution research international》2021,28(26):34154-34166
Environmental Science and Pollution Research - Unsuccessful vaccination against Salmonella due to a large number of serovars, and antibiotic resistance, necessitates the development of novel... 相似文献
160.
Mehmood Ahsan Khan Fahad Saleem Ahmed Mubarak Nabisab Mujawar Mazari Shaukat Ali Jatoi Abdul Sattar Khalid Mohammad Tan Yie Hua Karri Rama Rao Walvekar Rashmi Abdullah Ezzat Chan Nizamuddin Sabzoi 《Environmental science and pollution research international》2021,28(39):54477-54496
Environmental Science and Pollution Research - Oil spills are a major contributor to water contamination, which sets off a significant impact on the environment, biodiversity, and economy.... 相似文献