Feb 272013
 

Principle of Solid Waste Management


Improper disposal of solid wastes leads to various environmental and health hazards. To minimize such solid wastes are to be properly managed at their sources. The management of solid waste has become very difficult in urban areas as compared to rural areas. Management of solid waste refers to the planned and effective control of production, storage, transportation, processing and disposal or

utilization of solid wastes produced from different sources. To manage the solid wastes in an effective way, 5-R principle is found very useful.

1. Reduction of wastes

As our activities are the causes of production of solid waste, we only are responsible to manage the solid waste. We have to focus ourselves on minimizing the production of solid wastes such that it becomes easy to manage these wastes. Amount of waste can be minimized by separating them under bio-degradable and non-biodegrable waste such that compost can be prepared from degradable wastes and non-biodegradable waste can be used in different way.

2. Re-use

The process of utilizing the goods (articles) made from plastic or metal in the same form unless or until they are unfit for further use is known as re-use. Do not throw away the soft drink cans or the bottles; cover them with homemade paper or paint on them and use them as pencil stands or small vases. Alternately, you can store them and sell it to the kawadiwalla who takes these for recycling. Reuse the plastic bags for shopping again and again. For example use of coca cola bottles and water jars now and again.

3. Recycling

The process of transforming materials into secondary resources for manufacturing new products is called recycling. Segregate your wastes so that non-perishable wastes are easily collected and taken for recycling. Dig a small pit to compost your organic wastes like kitchen wastes at your home. It reduces the waste as well as it reduces the production of new materials.

4. Refuse

Instead of buying new containers from the market, use the ones that are in the house. Refuse to buy new items though you may think they are prettier than the ones you already have. Refuse more packaging so you reduce the waste.

5. Repair

The process of repairing the articles made of metal or plastics can also help to manage solid wastes to some extent. Repair old and damage clothes, wooden materials and so on. Repair damaged shoes, jackets, bags, baskets and so on as to reduce use of more new products which again ends up as waste.

Feb 222013
 

Finally HTC unveiled its flagship phone, HTC One. It comes with aluminium unibody with 4.7-inch full HD display with 468 pixels per inch. It has 1.7GHz quad-core Qualcomm Snapdragon 600 processor with 2GB of RAM. It is available in Grey, Black and Red colors in 32GB and 64GB storage space. The only drawback is it does not support expandable storage. Wi-Fi 802.11 a/ac/b/g/n, bluetooth 4.0, GPS, NFC,

Infrared and Micro USB are the some of the connectivity options available in HTC One smart phone. HTC One runs with Adrioid 4.1 Jelly Bean.


It has also got some unique features with the camera, swapping the megapixel race for what it calls the UltraPixel camera. The picture quality of HTC One is higher that its industry level. It has front and rear cameras that comes with full HD video recording capabilities as well as Optical Image Stabilization (OIS). The phone packs a 2,300 mAh battery.

The HTC One is completely competitive one that compete with flagships from other brands such as Sony’s Xperia Z, which is expected to make its debut in March, the Nokia Lumia 920, which was launched in India last month, the Apple iphone 5, Samsung Galaxy S III and finally, the Black Berry Z10.

Some of the comparison with other brands are as follows:

HTC One Sony Xperia Z Nokia Lumia 920 Apple iPhone 5 Samsung
Galaxy S III
BlackBerry Z10
Display 4.7-inches
1080×1920 (~468 ppi)
5-inches 1080×1920
(~440 ppi)
4.5-inches
720×1280 (~323 ppi)
4.0-inches 640×1136
(~326 ppi)
4.8-inches 720×1280
(~306 ppi)
4.2-inches 768×1280
(~356 ppi)
Processor 1.7 GHz quad-core
Qualcomm
Snapdragon 600
1.5 GHz quad-core
Qualcomm
Snapdragon S4
1.5 GHz dual-core
Qualcomm
Snapdragon S4
Apple A6 1.4 GHz quad-core
Samsung Exynos 4
1.5 GHz dual-core
Snapdragon S4
Plus
RAM 2GB 2GB 1GB 1GB 1GB 2GB
Internal
Storage
32/64GB 16GB 32GB 16/32/64GB 16/32/64GB 16GB
Expandable No Yes No No Yes Yes
Operating
System
Android 4.1 Android 4.1 Windows Phone 8 iOS 6 Android 4.1 (Shipped
with Android 4.0
BlackBerry 10
Connectivity Wi-Fi, Bluetooth, v4.0, NFC, Micro
USB, GPS, Infrared
Wi-Fi, Bluetooth, V4.0, NFC,
Micro-USB, GPS
Wi-Fi, Bluetooth,
V3.1, NFC,
Micro-USB, GPS
Wi-Fi, Bluetooth, V4.0, GPS Wi-Fi, Bluetooth, V4.0, NFC,
Micro-USB, GPS
Wi-Fi, Bluetooth, V4.0, NFC,
Micro-USB, GPS
Primary
Camera
UltraPixel Camera
with auto-focus &
LED flash
13-megapixels
Exmos RS camera
with auto-focus &
LED flash
8-megapixels
PureView
camera with
auto-focus &
LED flash
8-megapixels with
auto-focus &
LED flash
8-megapixels with
auto-focus &
LED flash
8-megapixels with
auto-focus &
LED flash
1080p Video
recording
Yes Yes Yes Yes Yes Yes
Secondary
Camera
2.1-megapixels 2-megapixels 1.3-megapixels 1.2-megapixels 1.9-megapixels 1-megapixels
Battery 2300 mAh 2230 mAh 2000 mAh 1440 mAh 2100 mAh 1800 mAh
Dimensions
(mm)
137×68.2×9.3 139x71x7.9 130×70.8×10.7 123×58.6×7.6 136.6×70.6×8.6 130×65.6×9
Weight 143 grams 146 grams 185 grams 112 grams 133 grams 136 grams