please compare the plane strain fracture toughness and Charpy test

Assignment I
Question 1: Prepare a report explaining ITS technologies used in transport sector in Japan, Europe and USA (in 2000 words).
Question 2: How you can apply ITS technologies to improve transportation situation in USA (in 500 Words)?
Question 3: How TSM and TDM are used to reduce traffic problems in Japan, China, Europe and Singapore (in 1000 words)?
Question 4: How Bus Rapid Transit (BRT) is used in Bogota and Curitiba to solve transport problems (in 1000 words)?

7) You are working on a concrete mix design that requires each cubic yard of concrete to have a 0.45 water–cement ratio,2100 lb/yd3 of dry gravel, 250 lb/yd3 of water, and 5% air content. The available gravel (NMS = ¾”) has a specific gravity of 2.6 , moisture content of 2.5% and absorption of 4.5%.The available sand has a specific gravity of 2.4, a moisture content of 2.5% and absorption of 2%. Air entrainer is to be included using the manufacturers specification of 0.1 fl.oz / 1% air / 100 lb cement. For each cubic yard of concrete needed on the job, calculate the weight of cement, moist gravel, moist sand, and water that should be added to the batch. Summarize and total the mix design when finished. 8) Design a concrete mix for the following conditions and constraints using the absolute volume method: Design Environment : Non-air entrained concrete will be used to cast Concrete frame. Required design strength(5000 psi) Minimum dimension (10 in.) Minimum space between rebars (1.5 in.) Minimum cover over rebars (2.5 in.) Standard deviation of compressive strength (600 psi) , (25 samples) Available Materials Cement Type II , moderate exposure Coarse aggregate Nominal Maximum size 1 in. river gravel (round) Bulk oven dry specific gravity =2.65, absorption = 3%, oven dry density 110 pcf , Moisture content 2%. Fine aggregate : Natural sand , Bulk oven-dry specific 2.5 , Absorption = 1% , Moisture content = 0.5% , Fineness modulus = 2.80

7) You are working on a concrete mix design that requires each cubic yard of concrete to have a 0.45 water–cement ratio,2100 lb/yd3 of dry gravel, 250 lb/yd3 of water, and 5% air content. The available gravel (NMS = ¾”) has a specific gravity of 2.6 , moisture content of 2.5% and absorption of 4.5%.The available sand has a specific gravity of 2.4, a moisture content of 2.5% and absorption of 2%. Air entrainer is to be included using the manufacturers specification of 0.1 fl.oz / 1% air / 100 lb cement. For each cubic yard of concrete needed on the job, calculate the weight of cement, moist gravel, moist sand, and water that should be added to the batch. Summarize and total the mix design when finished.

You have wastewater plant discharging into a clean river. The BOD of the Wastewater flow is 300 mg/L, the wastewater flow is 15 m3/sec, the river flow upstream of the mixing point is 120 m3/sec and BOD upstream of river is 0. The DO of the river at the mixed point is 8 mg/L and the saturation DO in the river would be 10 mg/L, the deoxygenation rate coefficient is 0.30/day and the reaeration constant is 0.90/day. The river is flowing 50 km/day and has no other BOD sources. (A) Find the critical distance downstream where BOD is a minimum, (B) Find the minimum DO at this point. (C) Draw a curve roughly to show the DO curve shape from the location of the mixing point downstream: your Y axis should be DO, your X axis should be distance, show the DO saturation line, the Do, the critical point distance, and DOmin.

As a student of the civil engineering department, how could you benefit in the real-life professions from studying the curse of professional practices and business communication?

Generally, how reliable are Shear Box Tests for dry sand? What are common factors in the testing procedure or design which influence reliability? How can one tell if results are reliable? In general terms, as normal force is increased on a sample, what can be expected?

This is a rock mechanics question.Civil Engineering subject.
1 a)What is meant by systolic association of rock fracture.What is the application of popping of rock in oil industries?

Answer only if you are 100%sure otherwise I will give negative feedback.
Explain with neat diagrams the systolic association of rocks with respect to the locking and popping theory?

This is Civil Engineering questions

how we can prepare the presentation of that topic which is given below;
(Effect of high temperature on the strength and thermal conductivity
of glass fiber concrete)

9. The following data are given for an activated sludge process: BOD5 (influent) = 250 mg/L (soluble) BOD5 (effluent) = 20 mg/L (soluble) MCRT = 10 days MLSS in the aeration tank = 2500 mg/L Concentration of SS in the recycle line = 10,000 mg/L Concentration of SS in the effluent = 30 mg/L (70% biodegradable) BOD5/BODu = 0.75, No nutrient limitations. Yield co-efficient, Y = 0.65 Endogenouse decay coefficient, kd = 0.06/day , Q=5MGD

Determine:
(a) Find soluble BOD5 (in mg/L) in the effluent, BOD5 treatment efficiency (in %) and overall efficiency (in %)
(b) Find hydraulic detention time (in hours) and the volume of tank (in MG).
(c) Yobs and biomass production (in lb VSS/day) (d) Qw (in MGD) when the wasting from the AT and from recycle line. (e) Recirculation ratio (f) Find Specific Utilization rate (U) and food to microorganism (F/M) ratio (g) Calculate volumetric loading rate (lb BOD5 /1000 ft3)

[HCM for Basic Freeway Segments] A six-lane freeway (three lanes in each direction) operates at the maximum service flow rate (MSF) of LOS D conditions during the peak hour with an observed demand volume of 3500 veh/h (one direction). The free flow speed (FFS) of the freeway is estimated to be 65 mi/h. The freeway is on rolling terrain and the traffic stream consists of passenger cars and buses only. The PHF is 0.85 and the traffic is all commuters. If a new busway was open next to this freeway and all buses were removed from the freeway, the new demand volume is 2354.55 (veh/h) for this freeway segment. Assume that car traffic remains the same.

What would be the LOS under the new demand volume? Note that this new demand volume now consists of passenger cars only as the buses were removed from this traffic stream. Assume that the freeway operates under ideal conditions (no incidents, work zones, or weather events).

Explain how Civil Liberties and Civil Rights address global warming through carbon emissions (300 words).