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排序方式: 共有125条查询结果,搜索用时 15 毫秒
91.
Mohammad Muhshin Aziz Khan Zaheed Ibne Halim Mohammad Iqbal 《International journal of occupational safety and ergonomics》2006,12(3):327-341
Case-study research was carried out with a view to find the attributes of occupational injury among workers in the chemical industry and to enhance safety issues. Injury data were collected and processed in terms of different variables, such as age, gender, skills, type of hazard, etc. Pareto analysis was then applied to find a pattern of occupational injury among the workers. The study revealed that 79.52% of the injured workers were in the 40-59 age group; 57.14% of accidents occurred during the 1st shift; 73.26% of accidents caused injury to hands, feet, chest to thigh, arms and eyes; and 70.93% of injuries were caused by pumps, carrying and lifting, vehicles, pipelines, valves, and grinding. Surprisingly, no one was injured in the group of temporary workers. The paper also provides specific suggestions followed by some action plans. 相似文献
92.
冀西北间山盆地区景观格局变化及优化研究——以河北省怀来县为例 总被引:2,自引:1,他引:1
景观格局的改变会对区域生态系统功能产生影响,对其格局进行优化调控是维持区域生态系统功能稳定性的重要手段。研究以怀来县为例,通过解译判读1993、2003和2013年3期遥感影像,分析了研究区景观格局特征,发现研究区景观破碎化程度呈上升趋势,结合各景观类型在地形位上的分布特征和生态系统服务功能,运用最小累积阻力模型构建了生态源地、生态廊道和生态节点等景观组分,整体连通性指数(dIIC)和可能连通性指数(dPC)评价结果表明河流交汇处及水库周边等区域对景观连通性重要值最大,然后划分了景观生态维持区、景观生态恢复区、景观生态功能强化区和景观生态功能保护区,为该地区景观生态优化提供指导 借鉴。 相似文献
93.
Shahla Ataei Rosiyah Yahya Seng Neon Gan Aziz Hassan 《Journal of Polymers and the Environment》2012,20(2):507-513
Thermal decomposition kinetics of three palm oleic acid-based alkyds with different oil lengths and having different molecular weights were studied using TGA measurements under non-isothermal conditions. Activation energies were obtained from Kissinger and Ozawa, Flynn and Wall (OFW) methods and subsequently the pre-exponential factor, A, degradation rate constant, k, for all the alkyds were also determined. From kinetic analysis of the thermal decomposition using the OFW method, it was found that degradation of all the alkyds has taken place in more than two stages, corresponding to different mechanisms. As shown from Ozawa and Kissinger methods, the chemical composition of the alkyds influenced the thermal degradation; increasing the phthalic anhydride and glycerol, and decreasing the oleic acid increased the thermal stabilities of the alkyds. 相似文献
94.
Ara Talat Nisa Waqar-Un Aziz Rukhsanda Rafiq Muhammad Tariq Gill Rafaqat Ali Hayat Malik Tahir Afridi Uzma 《Environmental geochemistry and health》2021,43(9):1-11
Environmental Geochemistry and Health - As the largest organ of the human body, the skin is the major exposure route of NO2. However, the evidence for a relationship between NO2 exposure and... 相似文献
95.
Reut Loria Inon Scharf Aziz Subach Ofer Ovadia 《Behavioral ecology and sociobiology》2008,62(7):1185-1192
Antlion larvae are sand-dwelling insect predators, which ambush small arthropod prey while buried in the sand. In some species,
the larvae construct conical pits and are considered as sit-and-wait predators which seldom relocate while in other species,
they ambush prey without a pit but change their ambush site much more frequently (i.e., sit-and-pursue predators). The ability
of antlion larvae to evade some of their predators which hunt them on the sand surface is strongly constrained by the degree
of sand stabilization or by sand depth. We studied the effect of predator presence, predator type (active predatory beetle
vs. sit-and-pursue wolf spider), and sand depth (shallow vs. deep sand) on the behavioral response of the pit building Myrmeleon hyalinus larvae and the sit-and-pursue Lopezus fedtschenkoi larvae. Predator presence had a negative effect on both antlion species activity. The sit-and-wait M. hyalinus larvae showed reduced pit-building activity, whereas the sit-and-pursue L. fedtschenkoi larvae decreased relocation activity. The proportion of relocating M. hyalinus was negatively affected by sand depth, whereas L. fedtschenkoi was negatively affected also by the predator type. Specifically, the proportion of individual L. fedtschenkoi that relocated in deeper sand was lower when facing the active predator rather than the sit-and-pursue predator. The proportion
of M. hyalinus which constructed pits decreased in the presence of a predator, but this pattern was stronger when exposed to the active
predator. We suggest that these differences between the two antlion species are strongly linked to their distinct foraging
modes and to the foraging mode of their predators.
Reut Loria and Inon Scharf contributed equally to the paper. 相似文献
96.
Salles Maurício B. C. Gadotti Taina N. Aziz Michael J. Hogan William W. 《Environmental science and pollution research international》2021,28(10):12369-12371
Environmental Science and Pollution Research - The original publication of this paper contains a mistake. 相似文献
97.
Journal of Material Cycles and Waste Management - Pyrolysis of scrap tire using concentrated solar radiation is a novel way to upgrade feedstock. In this investigation, best operating condition for... 相似文献
98.
Aziz Noshaba Sharif Arshian Raza Ali Jermsittiparsert Kittisak 《Environmental science and pollution research international》2021,28(11):13454-13468
Environmental Science and Pollution Research - We employ the new Method of Moments Quantile Regression approach to expose the role of natural resources, renewable energy, and globalization in... 相似文献
99.
Hassan Ismail Musa Latiffah Hassan Zulkifli Hj. Shamsuddin Chandrawathani Panchadcharam Zunita Zakaria Saleha Abdul Aziz 《Environmental monitoring and assessment》2018,190(4):241
Burkholderia pseudomallei causes melioidosis, a life-threatening infection in both humans and animals. Water is an important reservoir of the bacteria and may serve as a source of environmental contamination leading to infection. B. pseudomallei has an unusual ability to survive in water for a long period. This paper investigates physicochemical properties of water associated with the presence of B. pseudomallei in water supply in small ruminant farms in Peninsular Malaysia. Physicochemical properties of water samples taken from small ruminant farms that included temperature, pH, dissolved oxygen (DO2), optical density (OD), and chemical oxygen demand (COD) were measured after which the samples were cultured for B. pseudomallei. Multivariable logistic regression model revealed that slightly acidic water pH and higher COD level were significantly associated with the likelihood of the B. pseudomallei presence in the water. 相似文献
100.
Abdul Shukor Abdul Aziz Latifah Abd Manaf Hasfalina Che Man Nadavala Siva Kumar 《Environmental science and pollution research international》2014,21(13):7996-8005
This paper investigates the adsorption characteristics of palm oil boiler mill fly ash (POFA) derived from an agricultural waste material in removing Cd(II) and Cu(II) from aqueous solution via column studies. The performance of the study is described through the breakthrough curves concept under relevant operating conditions such as column bed depths (1, 1.5, and 2 cm) and influent metal concentrations (5, 10, and 20 mg/L). The Cd(II) and Cu(II) uptake mechanism is particularly bed depth- and concentration-dependant, favoring higher bed depth and lower influent metal concentration. The highest bed capacity of 34.91 mg Cd(II)/g and 21.93 mg Cu(II)/g of POFA was achieved at 20 mg/L of influent metal concentrations, column bed depth of 2 cm, and flow rate of 5 mL/min. The whole breakthrough curve simulation for both metal ions were best described using the Thomas and Yoon–Nelson models, but it is apparent that the initial region of the breakthrough for Cd(II) was better described using the BDST model. The results illustrate that POFA could be utilized effectively for the removal of Cd(II) and Cu(II) ions from aqueous solution in a fixed-bed column system. 相似文献